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wxWidgets/wxPython/wx/lib/maskededit.py
Robin Dunn ae18f6104c Use correct name for event type 
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#----------------------------------------------------------------------------
# Name: maskededit.py
# Authors: Jeff Childers, Will Sadkin
# Email: jchilders_98@yahoo.com, wsadkin@nameconnector.com
# Created: 02/11/2003
# Copyright: (c) 2003 by Jeff Childers, 2003
# Portions: (c) 2002 by Will Sadkin, 2002-2003
# RCS-ID: $Id$
# License: wxWindows license
#----------------------------------------------------------------------------
# NOTE:
# This was written way it is because of the lack of masked edit controls
# in wxWindows/wxPython.
#
# MaskedEdit controls are based on a suggestion made on [wxPython-Users] by
# Jason Hihn, and borrows liberally from Will Sadkin's original masked edit
# control for time entry, TimeCtrl (which is now rewritten using this
# control!).
#
# MaskedEdit controls do not normally use validators, because they do
# careful manipulation of the cursor in the text window on each keystroke,
# and validation is cursor-position specific, so the control intercepts the
# key codes before the validator would fire. However, validators can be
# provided to do data transfer to the controls.
#
#----------------------------------------------------------------------------
#
# 12/09/2003 - Jeff Grimmett (grimmtooth@softhome.net)
#
# o Updated for wx namespace. No guarantees. This is one huge file.
#
# 12/13/2003 - Jeff Grimmett (grimmtooth@softhome.net)
#
# o Missed wx.DateTime stuff earlier.
#
# 12/20/2003 - Jeff Grimmett (grimmtooth@softhome.net)
#
# o wxMaskedEditMixin -> MaskedEditMixin
# o wxMaskedTextCtrl -> MaskedTextCtrl
# o wxMaskedComboBoxSelectEvent -> MaskedComboBoxSelectEvent
# o wxMaskedComboBox -> MaskedComboBox
# o wxIpAddrCtrl -> IpAddrCtrl
# o wxTimeCtrl -> TimeCtrl
#
"""\
<b>Masked Edit Overview:
=====================</b>
<b>MaskedTextCtrl</b>
is a sublassed text control that can carefully control the user's input
based on a mask string you provide.
General usage example:
control = MaskedTextCtrl( win, -1, '', mask = '(###) ###-####')
The example above will create a text control that allows only numbers to be
entered and then only in the positions indicated in the mask by the # sign.
<b>MaskedComboBox</b>
is a similar subclass of wxComboBox that allows the same sort of masking,
but also can do auto-complete of values, and can require the value typed
to be in the list of choices to be colored appropriately.
<b>wxMaskedCtrl</b>
is actually a factory function for several types of masked edit controls:
<b>MaskedTextCtrl</b> - standard masked edit text box
<b>MaskedComboBox</b> - adds combobox capabilities
<b>IpAddrCtrl</b> - adds special semantics for IP address entry
<b>TimeCtrl</b> - special subclass handling lots of types as values
<b>wxMaskedNumCtrl</b> - special subclass handling numeric values
It works by looking for a <b><i>controlType</i></b> parameter in the keyword
arguments of the control, to determine what kind of instance to return.
If not specified as a keyword argument, the default control type returned
will be MaskedTextCtrl.
Each of the above classes has its own set of arguments, but wxMaskedCtrl
provides a single "unified" interface for masked controls. Those for
MaskedTextCtrl, MaskedComboBox and IpAddrCtrl are all documented
below; the others have their own demo pages and interface descriptions.
(See end of following discussion for how to configure the wxMaskedCtrl()
to select the above control types.)
<b>INITILIZATION PARAMETERS
========================
mask=</b>
Allowed mask characters and function:
Character Function
# Allow numeric only (0-9)
N Allow letters and numbers (0-9)
A Allow uppercase letters only
a Allow lowercase letters only
C Allow any letter, upper or lower
X Allow string.letters, string.punctuation, string.digits
&amp; Allow string.punctuation only
These controls define these sets of characters using string.letters,
string.uppercase, etc. These sets are affected by the system locale
setting, so in order to have the masked controls accept characters
that are specific to your users' language, your application should
set the locale.
For example, to allow international characters to be used in the
above masks, you can place the following in your code as part of
your application's initialization code:
import locale
locale.setlocale(locale.LC_ALL, '')
Using these mask characters, a variety of template masks can be built. See
the demo for some other common examples include date+time, social security
number, etc. If any of these characters are needed as template rather
than mask characters, they can be escaped with \, ie. \N means "literal N".
(use \\ for literal backslash, as in: r'CCC\\NNN'.)
<b>Note:</b>
Masks containing only # characters and one optional decimal point
character are handled specially, as "numeric" controls. Such
controls have special handling for typing the '-' key, handling
the "decimal point" character as truncating the integer portion,
optionally allowing grouping characters and so forth.
There are several parameters and format codes that only make sense
when combined with such masks, eg. groupChar, decimalChar, and so
forth (see below). These allow you to construct reasonable
numeric entry controls.
<b>Note:</b>
Changing the mask for a control deletes any previous field classes
(and any associated validation or formatting constraints) for them.
<b>useFixedWidthFont=</b>
By default, masked edit controls use a fixed width font, so that
the mask characters are fixed within the control, regardless of
subsequent modifications to the value. Set to False if having
the control font be the same as other controls is required.
<b>formatcodes=</b>
These other properties can be passed to the class when instantiating it:
Formatcodes are specified as a string of single character formatting
codes that modify behavior of the control:
_ Allow spaces
! Force upper
^ Force lower
R Right-align field(s)
r Right-insert in field(s) (implies R)
&lt; Stay in field until explicit navigation out of it
&gt; Allow insert/delete within partially filled fields (as
opposed to the default "overwrite" mode for fixed-width
masked edit controls.) This allows single-field controls
or each field within a multi-field control to optionally
behave more like standard text controls.
(See EMAIL or phone number autoformat examples.)
<i>Note: This also governs whether backspace/delete operations
shift contents of field to right of cursor, or just blank the
erased section.
Also, when combined with 'r', this indicates that the field
or control allows right insert anywhere within the current
non-empty value in the field. (Otherwise right-insert behavior
is only performed to when the entire right-insertable field is
selected or the cursor is at the right edge of the field.</i>
, Allow grouping character in integer fields of numeric controls
and auto-group/regroup digits (if the result fits) when leaving
such a field. (If specified, .SetValue() will attempt to
auto-group as well.)
',' is also the default grouping character. To change the
grouping character and/or decimal character, use the groupChar
and decimalChar parameters, respectively.
Note: typing the "decimal point" character in such fields will
clip the value to that left of the cursor for integer
fields of controls with "integer" or "floating point" masks.
If the ',' format code is specified, this will also cause the
resulting digits to be regrouped properly, using the current
grouping character.
- Prepend and reserve leading space for sign to mask and allow
signed values (negative #s shown in red by default.) Can be
used with argument useParensForNegatives (see below.)
0 integer fields get leading zeros
D Date[/time] field
T Time field
F Auto-Fit: the control calulates its size from
the length of the template mask
V validate entered chars against validRegex before allowing them
to be entered vs. being allowed by basic mask and then having
the resulting value just colored as invalid.
(See USSTATE autoformat demo for how this can be used.)
S select entire field when navigating to new field
<b>fillChar=
defaultValue=</b>
These controls have two options for the initial state of the control.
If a blank control with just the non-editable characters showing
is desired, simply leave the constructor variable fillChar as its
default (' '). If you want some other character there, simply
change the fillChar to that value. Note: changing the control's fillChar
will implicitly reset all of the fields' fillChars to this value.
If you need different default characters in each mask position,
you can specify a defaultValue parameter in the constructor, or
set them for each field individually.
This value must satisfy the non-editable characters of the mask,
but need not conform to the replaceable characters.
<b>groupChar=
decimalChar=</b>
These parameters govern what character is used to group numbers
and is used to indicate the decimal point for numeric format controls.
The default groupChar is ',', the default decimalChar is '.'
By changing these, you can customize the presentation of numbers
for your location.
eg: formatcodes = ',', groupChar="'" allows 12'345.34
formatcodes = ',', groupChar='.', decimalChar=',' allows 12.345,34
<b>shiftDecimalChar=</b>
The default "shiftDecimalChar" (used for "backwards-tabbing" until
shift-tab is fixed in wxPython) is '>' (for QUERTY keyboards.) for
other keyboards, you may want to customize this, eg '?' for shift ',' on
AZERTY keyboards, ':' or ';' for other European keyboards, etc.
<b>useParensForNegatives=False</b>
This option can be used with signed numeric format controls to
indicate signs via () rather than '-'.
<b>autoSelect=False</b>
This option can be used to have a field or the control try to
auto-complete on each keystroke if choices have been specified.
<b>autoCompleteKeycodes=[]</b>
By default, DownArrow, PageUp and PageDown will auto-complete a
partially entered field. Shift-DownArrow, Shift-UpArrow, PageUp
and PageDown will also auto-complete, but if the field already
contains a matched value, these keys will cycle through the list
of choices forward or backward as appropriate. Shift-Up and
Shift-Down also take you to the next/previous field after any
auto-complete action.
Additional auto-complete keys can be specified via this parameter.
Any keys so specified will act like PageDown.
<b>Validating User Input:
======================</b>
There are a variety of initialization parameters that are used to validate
user input. These parameters can apply to the control as a whole, and/or
to individual fields:
excludeChars= A string of characters to exclude even if otherwise allowed
includeChars= A string of characters to allow even if otherwise disallowed
validRegex= Use a regular expression to validate the contents of the text box
validRange= Pass a rangeas list (low,high) to limit numeric fields/values
choices= A list of strings that are allowed choices for the control.
choiceRequired= value must be member of choices list
compareNoCase= Perform case-insensitive matching when validating against list
<i>Note: for MaskedComboBox, this defaults to True.</i>
emptyInvalid= Boolean indicating whether an empty value should be considered invalid
validFunc= A function to call of the form: bool = func(candidate_value)
which will return True if the candidate_value satisfies some
external criteria for the control in addition to the the
other validation, or False if not. (This validation is
applied last in the chain of validations.)
validRequired= Boolean indicating whether or not keys that are allowed by the
mask, but result in an invalid value are allowed to be entered
into the control. Setting this to True implies that a valid
default value is set for the control.
retainFieldValidation=
False by default; if True, this allows individual fields to
retain their own validation constraints independently of any
subsequent changes to the control's overall parameters.
validator= Validators are not normally needed for masked controls, because
of the nature of the validation and control of input. However,
you can supply one to provide data transfer routines for the
controls.
<b>Coloring Behavior:
==================</b>
The following parameters have been provided to allow you to change the default
coloring behavior of the control. These can be set at construction, or via
the .SetCtrlParameters() function. Pass a color as string e.g. 'Yellow':
emptyBackgroundColour= Control Background color when identified as empty. Default=White
invalidBackgroundColour= Control Background color when identified as Not valid. Default=Yellow
validBackgroundColour= Control Background color when identified as Valid. Default=white
The following parameters control the default foreground color coloring behavior of the
control. Pass a color as string e.g. 'Yellow':
foregroundColour= Control foreground color when value is not negative. Default=Black
signedForegroundColour= Control foreground color when value is negative. Default=Red
<b>Fields:
=======</b>
Each part of the mask that allows user input is considered a field. The fields
are represented by their own class instances. You can specify field-specific
constraints by constructing or accessing the field instances for the control
and then specifying those constraints via parameters.
<b>fields=</b>
This parameter allows you to specify Field instances containing
constraints for the individual fields of a control, eg: local
choice lists, validation rules, functions, regexps, etc.
It can be either an ordered list or a dictionary. If a list,
the fields will be applied as fields 0, 1, 2, etc.
If a dictionary, it should be keyed by field index.
the values should be a instances of maskededit.Field.
Any field not represented by the list or dictionary will be
implicitly created by the control.
eg:
fields = [ Field(formatcodes='_r'), Field('choices=['a', 'b', 'c']) ]
or
fields = {
1: ( Field(formatcodes='_R', choices=['a', 'b', 'c']),
3: ( Field(choices=['01', '02', '03'], choiceRequired=True)
}
The following parameters are available for individual fields, with the
same semantics as for the whole control but applied to the field in question:
fillChar # if set for a field, it will override the control's fillChar for that field
groupChar # if set for a field, it will override the control's default
defaultValue # sets field-specific default value; overrides any default from control
compareNoCase # overrides control's settings
emptyInvalid # determines whether field is required to be filled at all times
validRequired # if set, requires field to contain valid value
If any of the above parameters are subsequently specified for the control as a
whole, that new value will be propagated to each field, unless the
retainFieldValidation control-level parameter is set.
formatcodes # Augments control's settings
excludeChars # ' ' '
includeChars # ' ' '
validRegex # ' ' '
validRange # ' ' '
choices # ' ' '
choiceRequired # ' ' '
validFunc # ' ' '
<b>Control Class Functions:
========================
.GetPlainValue(value=None)</b>
Returns the value specified (or the control's text value
not specified) without the formatting text.
In the example above, might return phone no='3522640075',
whereas control.GetValue() would return '(352) 264-0075'
<b>.ClearValue()</b>
Returns the control's value to its default, and places the
cursor at the beginning of the control.
<b>.SetValue()</b>
Does "smart replacement" of passed value into the control, as does
the .Paste() method. As with other text entry controls, the
.SetValue() text replacement begins at left-edge of the control,
with missing mask characters inserted as appropriate.
.SetValue will also adjust integer, float or date mask entry values,
adding commas, auto-completing years, etc. as appropriate.
For "right-aligned" numeric controls, it will also now automatically
right-adjust any value whose length is less than the width of the
control before attempting to set the value.
If a value does not follow the format of the control's mask, or will
not fit into the control, a ValueError exception will be raised.
Eg:
mask = '(###) ###-####'
.SetValue('1234567890') => '(123) 456-7890'
.SetValue('(123)4567890') => '(123) 456-7890'
.SetValue('(123)456-7890') => '(123) 456-7890'
.SetValue('123/4567-890') => illegal paste; ValueError
mask = '#{6}.#{2}', formatcodes = '_,-',
.SetValue('111') => ' 111 . '
.SetValue(' %9.2f' % -111.12345 ) => ' -111.12'
.SetValue(' %9.2f' % 1234.00 ) => ' 1,234.00'
.SetValue(' %9.2f' % -1234567.12345 ) => insufficient room; ValueError
mask = '#{6}.#{2}', formatcodes = '_,-R' # will right-adjust value for right-aligned control
.SetValue('111') => padded value misalignment ValueError: " 111" will not fit
.SetValue('%.2f' % 111 ) => ' 111.00'
.SetValue('%.2f' % -111.12345 ) => ' -111.12'
<b>.IsValid(value=None)</b>
Returns True if the value specified (or the value of the control
if not specified) passes validation tests
<b>.IsEmpty(value=None)</b>
Returns True if the value specified (or the value of the control
if not specified) is equal to an "empty value," ie. all
editable characters == the fillChar for their respective fields.
<b>.IsDefault(value=None)</b>
Returns True if the value specified (or the value of the control
if not specified) is equal to the initial value of the control.
<b>.Refresh()</b>
Recolors the control as appropriate to its current settings.
<b>.SetCtrlParameters(**kwargs)</b>
This function allows you to set up and/or change the control parameters
after construction; it takes a list of key/value pairs as arguments,
where the keys can be any of the mask-specific parameters in the constructor.
Eg:
ctl = MaskedTextCtrl( self, -1 )
ctl.SetCtrlParameters( mask='###-####',
defaultValue='555-1212',
formatcodes='F')
<b>.GetCtrlParameter(parametername)</b>
This function allows you to retrieve the current value of a parameter
from the control.
<b><i>Note:</i></b> Each of the control parameters can also be set using its
own Set and Get function. These functions follow a regular form:
All of the parameter names start with lower case; for their
corresponding Set/Get function, the parameter name is capitalized.
Eg: ctl.SetMask('###-####')
ctl.SetDefaultValue('555-1212')
ctl.GetChoiceRequired()
ctl.GetFormatcodes()
<b>.SetFieldParameters(field_index, **kwargs)</b>
This function allows you to specify change individual field
parameters after construction. (Indices are 0-based.)
<b>.GetFieldParameter(field_index, parametername)</b>
Allows the retrieval of field parameters after construction
The control detects certain common constructions. In order to use the signed feature
(negative numbers and coloring), the mask has to be all numbers with optionally one
decimal point. Without a decimal (e.g. '######', the control will treat it as an integer
value. With a decimal (e.g. '###.##'), the control will act as a floating point control
(i.e. press decimal to 'tab' to the decimal position). Pressing decimal in the
integer control truncates the value.
Check your controls by calling each control's .IsValid() function and the
.IsEmpty() function to determine which controls have been a) filled in and
b) filled in properly.
Regular expression validations can be used flexibly and creatively.
Take a look at the demo; the zip-code validation succeeds as long as the
first five numerals are entered. the last four are optional, but if
any are entered, there must be 4 to be valid.
<B>wxMaskedCtrl Configuration
==========================</B>
wxMaskedCtrl works by looking for a special <b><i>controlType</i></b>
parameter in the variable arguments of the control, to determine
what kind of instance to return.
controlType can be one of:
controlTypes.MASKEDTEXT
controlTypes.MASKEDCOMBO
controlTypes.IPADDR
controlTypes.TIME
controlTypes.NUMBER
These constants are also available individually, ie, you can
use either of the following:
from wxPython.wx.lib.maskedctrl import wxMaskedCtrl, controlTypes
from wxPython.wx.lib.maskedctrl import wxMaskedCtrl, MASKEDCOMBO, MASKEDTEXT, NUMBER
If not specified as a keyword argument, the default controlType is
controlTypes.TEXT.
"""
"""
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
DEVELOPER COMMENTS:
Naming Conventions
------------------
All methods of the Mixin that are not meant to be exposed to the external
interface are prefaced with '_'. Those functions that are primarily
intended to be internal subroutines subsequently start with a lower-case
letter; those that are primarily intended to be used and/or overridden
by derived subclasses start with a capital letter.
The following methods must be used and/or defined when deriving a control
from wxMaskedEditMixin. NOTE: if deriving from a *masked edit* control
(eg. class IpAddrCtrl(MaskedTextCtrl) ), then this is NOT necessary,
as it's already been done for you in the base class.
._SetInitialValue()
This function must be called after the associated base
control has been initialized in the subclass __init__
function. It sets the initial value of the control,
either to the value specified if non-empty, the
default value if specified, or the "template" for
the empty control as necessary. It will also set/reset
the font if necessary and apply formatting to the
control at this time.
._GetSelection()
REQUIRED
Each class derived from wxMaskedEditMixin must define
the function for getting the start and end of the
current text selection. The reason for this is
that not all controls have the same function name for
doing this; eg. wxTextCtrl uses .GetSelection(),
whereas we had to write a .GetMark() function for
wxComboBox, because .GetSelection() for the control
gets the currently selected list item from the combo
box, and the control doesn't (yet) natively provide
a means of determining the text selection.
._SetSelection()
REQUIRED
Similarly to _GetSelection, each class derived from
wxMaskedEditMixin must define the function for setting
the start and end of the current text selection.
(eg. .SetSelection() for MaskedTextCtrl, and .SetMark() for
MaskedComboBox.
._GetInsertionPoint()
._SetInsertionPoint()
REQUIRED
For consistency, and because the mixin shouldn't rely
on fixed names for any manipulations it does of any of
the base controls, we require each class derived from
wxMaskedEditMixin to define these functions as well.
._GetValue()
._SetValue() REQUIRED
Each class derived from wxMaskedEditMixin must define
the functions used to get and set the raw value of the
control.
This is necessary so that recursion doesn't take place
when setting the value, and so that the mixin can
call the appropriate function after doing all its
validation and manipulation without knowing what kind
of base control it was mixed in with. To handle undo
functionality, the ._SetValue() must record the current
selection prior to setting the value.
.Cut()
.Paste()
.Undo()
.SetValue() REQUIRED
Each class derived from wxMaskedEditMixin must redefine
these functions to call the _Cut(), _Paste(), _Undo()
and _SetValue() methods, respectively for the control,
so as to prevent programmatic corruption of the control's
value. This must be done in each derivation, as the
mixin cannot itself override a member of a sibling class.
._Refresh() REQUIRED
Each class derived from wxMaskedEditMixin must define
the function used to refresh the base control.
.Refresh() REQUIRED
Each class derived from wxMaskedEditMixin must redefine
this function so that it checks the validity of the
control (via self._CheckValid) and then refreshes
control using the base class method.
._IsEditable() REQUIRED
Each class derived from wxMaskedEditMixin must define
the function used to determine if the base control is
editable or not. (For MaskedComboBox, this has to
be done with code, rather than specifying the proper
function in the base control, as there isn't one...)
._CalcSize() REQUIRED
Each class derived from wxMaskedEditMixin must define
the function used to determine how wide the control
should be given the mask. (The mixin function
._calcSize() provides a baseline estimate.)
Event Handling
--------------
Event handlers are "chained", and wxMaskedEditMixin usually
swallows most of the events it sees, thereby preventing any other
handlers from firing in the chain. It is therefore required that
each class derivation using the mixin to have an option to hook up
the event handlers itself or forego this operation and let a
subclass of the masked control do so. For this reason, each
subclass should probably include the following code:
if setupEventHandling:
## Setup event handlers
EVT_SET_FOCUS( self, self._OnFocus ) ## defeat automatic full selection
EVT_KILL_FOCUS( self, self._OnKillFocus ) ## run internal validator
EVT_LEFT_DCLICK(self, self._OnDoubleClick) ## select field under cursor on dclick
EVT_RIGHT_UP(self, self._OnContextMenu ) ## bring up an appropriate context menu
EVT_KEY_DOWN( self, self._OnKeyDown ) ## capture control events not normally seen, eg ctrl-tab.
EVT_CHAR( self, self._OnChar ) ## handle each keypress
EVT_TEXT( self, self.GetId(), self._OnTextChange ) ## color control appropriately & keep
## track of previous value for undo
where setupEventHandling is an argument to its constructor.
These 5 handlers must be "wired up" for the wxMaskedEdit
control to provide default behavior. (The setupEventHandling
is an argument to MaskedTextCtrl and MaskedComboBox, so
that controls derived from *them* may replace one of these
handlers if they so choose.)
If your derived control wants to preprocess events before
taking action, it should then set up the event handling itself,
so it can be first in the event handler chain.
The following routines are available to facilitate changing
the default behavior of wxMaskedEdit controls:
._SetKeycodeHandler(keycode, func)
._SetKeyHandler(char, func)
Use to replace default handling for any given keycode.
func should take the key event as argument and return
False if no further action is required to handle the
key. Eg:
self._SetKeycodeHandler(WXK_UP, self.IncrementValue)
self._SetKeyHandler('-', self._OnChangeSign)
"Navigation" keys are assumed to change the cursor position, and
therefore don't cause automatic motion of the cursor as insertable
characters do.
._AddNavKeycode(keycode, handler=None)
._AddNavKey(char, handler=None)
Allows controls to specify other keys (and optional handlers)
to be treated as navigational characters. (eg. '.' in IpAddrCtrl)
._GetNavKeycodes() Returns the current list of navigational keycodes.
._SetNavKeycodes(key_func_tuples)
Allows replacement of the current list of keycode
processed as navigation keys, and bind associated
optional keyhandlers. argument is a list of key/handler
tuples. Passing a value of None for the handler in a
given tuple indicates that default processing for the key
is desired.
._FindField(pos) Returns the Field object associated with this position
in the control.
._FindFieldExtent(pos, getslice=False, value=None)
Returns edit_start, edit_end of the field corresponding
to the specified position within the control, and
optionally also returns the current contents of that field.
If value is specified, it will retrieve the slice the corresponding
slice from that value, rather than the current value of the
control.
._AdjustField(pos)
This is, the function that gets called for a given position
whenever the cursor is adjusted to leave a given field.
By default, it adjusts the year in date fields if mask is a date,
It can be overridden by a derived class to
adjust the value of the control at that time.
(eg. IpAddrCtrl reformats the address in this way.)
._Change() Called by internal EVT_TEXT handler. Return False to force
skip of the normal class change event.
._Keypress(key) Called by internal EVT_CHAR handler. Return False to force
skip of the normal class keypress event.
._LostFocus() Called by internal EVT_KILL_FOCUS handler
._OnKeyDown(event)
This is the default EVT_KEY_DOWN routine; it just checks for
"navigation keys", and if event.ControlDown(), it fires the
mixin's _OnChar() routine, as such events are not always seen
by the "cooked" EVT_CHAR routine.
._OnChar(event) This is the main EVT_CHAR handler for the
wxMaskedEditMixin.
The following routines are used to handle standard actions
for control keys:
_OnArrow(event) used for arrow navigation events
_OnCtrl_A(event) 'select all'
_OnCtrl_C(event) 'copy' (uses base control function, as copy is non-destructive)
_OnCtrl_S(event) 'save' (does nothing)
_OnCtrl_V(event) 'paste' - calls _Paste() method, to do smart paste
_OnCtrl_X(event) 'cut' - calls _Cut() method, to "erase" selection
_OnCtrl_Z(event) 'undo' - resets value to previous value (if any)
_OnChangeField(event) primarily used for tab events, but can be
used for other keys (eg. '.' in IpAddrCtrl)
_OnErase(event) used for backspace and delete
_OnHome(event)
_OnEnd(event)
"""
import copy
import difflib
import re
import string
import types
import wx
# jmg 12/9/03 - when we cut ties with Py 2.2 and earlier, this would
# be a good place to implement the 2.3 logger class
from wx.tools.dbg import Logger
dbg = Logger()
dbg(enable=0)
## ---------- ---------- ---------- ---------- ---------- ---------- ----------
## Constants for identifying control keys and classes of keys:
WXK_CTRL_A = (ord('A')+1) - ord('A') ## These keys are not already defined in wx
WXK_CTRL_C = (ord('C')+1) - ord('A')
WXK_CTRL_S = (ord('S')+1) - ord('A')
WXK_CTRL_V = (ord('V')+1) - ord('A')
WXK_CTRL_X = (ord('X')+1) - ord('A')
WXK_CTRL_Z = (ord('Z')+1) - ord('A')
nav = (
wx.WXK_BACK, wx.WXK_LEFT, wx.WXK_RIGHT, wx.WXK_UP, wx.WXK_DOWN, wx.WXK_TAB,
wx.WXK_HOME, wx.WXK_END, wx.WXK_RETURN, wx.WXK_PRIOR, wx.WXK_NEXT
)
control = (
wx.WXK_BACK, wx.WXK_DELETE, WXK_CTRL_A, WXK_CTRL_C, WXK_CTRL_S, WXK_CTRL_V,
WXK_CTRL_X, WXK_CTRL_Z
)
## ---------- ---------- ---------- ---------- ---------- ---------- ----------
## Constants for masking. This is where mask characters
## are defined.
## maskchars used to identify valid mask characters from all others
## #- allow numeric 0-9 only
## A- allow uppercase only. Combine with forceupper to force lowercase to upper
## a- allow lowercase only. Combine with forcelower to force upper to lowercase
## X- allow any character (string.letters, string.punctuation, string.digits)
## Note: locale settings affect what "uppercase", lowercase, etc comprise.
##
maskchars = ("#","A","a","X","C","N", '&')
months = '(01|02|03|04|05|06|07|08|09|10|11|12)'
charmonths = '(Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec|JAN|FEB|MAR|APR|MAY|JUN|JUL|AUG|SEP|OCT|NOV|DEC|jan|feb|mar|apr|may|jun|jul|aug|sep|oct|nov|dec)'
charmonths_dict = {'jan': 1, 'feb': 2, 'mar': 3, 'apr': 4, 'may': 5, 'jun': 6,
'jul': 7, 'aug': 8, 'sep': 9, 'oct': 10, 'nov': 11, 'dec': 12}
days = '(01|02|03|04|05|06|07|08|09|10|11|12|13|14|15|16|17|18|19|20|21|22|23|24|25|26|27|28|29|30|31)'
hours = '(0\d| \d|1[012])'
milhours = '(00|01|02|03|04|05|06|07|08|09|10|11|12|13|14|15|16|17|18|19|20|21|22|23)'
minutes = """(00|01|02|03|04|05|06|07|08|09|10|11|12|13|14|15|\
16|17|18|19|20|21|22|23|24|25|26|27|28|29|30|31|32|33|34|35|\
36|37|38|39|40|41|42|43|44|45|46|47|48|49|50|51|52|53|54|55|\
56|57|58|59)"""
seconds = minutes
am_pm_exclude = 'BCDEFGHIJKLMNOQRSTUVWXYZ\x8a\x8c\x8e\x9f\xc0\xc1\xc2\xc3\xc4\xc5\xc6\xc7\xc8\xc9\xca\xcb\xcc\xcd\xce\xcf\xd0\xd1\xd2\xd3\xd4\xd5\xd6\xd8\xd9\xda\xdb\xdc\xdd\xde'
states = "AL,AK,AZ,AR,CA,CO,CT,DE,DC,FL,GA,GU,HI,ID,IL,IN,IA,KS,KY,LA,MA,ME,MD,MI,MN,MS,MO,MT,NE,NV,NH,NJ,NM,NY,NC,ND,OH,OK,OR,PA,PR,RI,SC,SD,TN,TX,UT,VA,VT,VI,WA,WV,WI,WY".split(',')
state_names = ['Alabama','Alaska','Arizona','Arkansas',
'California','Colorado','Connecticut',
'Delaware','District of Columbia',
'Florida','Georgia','Hawaii',
'Idaho','Illinois','Indiana','Iowa',
'Kansas','Kentucky','Louisiana',
'Maine','Maryland','Massachusetts','Michigan',
'Minnesota','Mississippi','Missouri','Montana',
'Nebraska','Nevada','New Hampshire','New Jersey',
'New Mexico','New York','North Carolina','North Dakokta',
'Ohio','Oklahoma','Oregon',
'Pennsylvania','Puerto Rico','Rhode Island',
'South Carolina','South Dakota',
'Tennessee','Texas','Utah',
'Vermont','Virginia',
'Washington','West Virginia',
'Wisconsin','Wyoming']
## ---------- ---------- ---------- ---------- ---------- ---------- ----------
## The following dictionary defines the current set of autoformats:
masktags = {
"USPHONEFULLEXT": {
'mask': "(###) ###-#### x:###",
'formatcodes': 'F^->',
'validRegex': "^\(\d{3}\) \d{3}-\d{4}",
'description': "Phone Number w/opt. ext"
},
"USPHONETIGHTEXT": {
'mask': "###-###-#### x:###",
'formatcodes': 'F^->',
'validRegex': "^\d{3}-\d{3}-\d{4}",
'description': "Phone Number\n (w/hyphens and opt. ext)"
},
"USPHONEFULL": {
'mask': "(###) ###-####",
'formatcodes': 'F^->',
'validRegex': "^\(\d{3}\) \d{3}-\d{4}",
'description': "Phone Number only"
},
"USPHONETIGHT": {
'mask': "###-###-####",
'formatcodes': 'F^->',
'validRegex': "^\d{3}-\d{3}-\d{4}",
'description': "Phone Number\n(w/hyphens)"
},
"USSTATE": {
'mask': "AA",
'formatcodes': 'F!V',
'validRegex': "([ACDFGHIKLMNOPRSTUVW] |%s)" % string.join(states,'|'),
'choices': states,
'choiceRequired': True,
'description': "US State Code"
},
"USSTATENAME": {
'mask': "ACCCCCCCCCCCCCCCCCCC",
'formatcodes': 'F_',
'validRegex': "([ACDFGHIKLMNOPRSTUVW] |%s)" % string.join(state_names,'|'),
'choices': state_names,
'choiceRequired': True,
'description': "US State Name"
},
"USDATETIMEMMDDYYYY/HHMMSS": {
'mask': "##/##/#### ##:##:## AM",
'excludeChars': am_pm_exclude,
'formatcodes': 'DF!',
'validRegex': '^' + months + '/' + days + '/' + '\d{4} ' + hours + ':' + minutes + ':' + seconds + ' (A|P)M',
'description': "US Date + Time"
},
"USDATETIMEMMDDYYYY-HHMMSS": {
'mask': "##-##-#### ##:##:## AM",
'excludeChars': am_pm_exclude,
'formatcodes': 'DF!',
'validRegex': '^' + months + '-' + days + '-' + '\d{4} ' + hours + ':' + minutes + ':' + seconds + ' (A|P)M',
'description': "US Date + Time\n(w/hypens)"
},
"USDATEMILTIMEMMDDYYYY/HHMMSS": {
'mask': "##/##/#### ##:##:##",
'formatcodes': 'DF',
'validRegex': '^' + months + '/' + days + '/' + '\d{4} ' + milhours + ':' + minutes + ':' + seconds,
'description': "US Date + Military Time"
},
"USDATEMILTIMEMMDDYYYY-HHMMSS": {
'mask': "##-##-#### ##:##:##",
'formatcodes': 'DF',
'validRegex': '^' + months + '-' + days + '-' + '\d{4} ' + milhours + ':' + minutes + ':' + seconds,
'description': "US Date + Military Time\n(w/hypens)"
},
"USDATETIMEMMDDYYYY/HHMM": {
'mask': "##/##/#### ##:## AM",
'excludeChars': am_pm_exclude,
'formatcodes': 'DF!',
'validRegex': '^' + months + '/' + days + '/' + '\d{4} ' + hours + ':' + minutes + ' (A|P)M',
'description': "US Date + Time\n(without seconds)"
},
"USDATEMILTIMEMMDDYYYY/HHMM": {
'mask': "##/##/#### ##:##",
'formatcodes': 'DF',
'validRegex': '^' + months + '/' + days + '/' + '\d{4} ' + milhours + ':' + minutes,
'description': "US Date + Military Time\n(without seconds)"
},
"USDATETIMEMMDDYYYY-HHMM": {
'mask': "##-##-#### ##:## AM",
'excludeChars': am_pm_exclude,
'formatcodes': 'DF!',
'validRegex': '^' + months + '-' + days + '-' + '\d{4} ' + hours + ':' + minutes + ' (A|P)M',
'description': "US Date + Time\n(w/hypens and w/o secs)"
},
"USDATEMILTIMEMMDDYYYY-HHMM": {
'mask': "##-##-#### ##:##",
'formatcodes': 'DF',
'validRegex': '^' + months + '-' + days + '-' + '\d{4} ' + milhours + ':' + minutes,
'description': "US Date + Military Time\n(w/hyphens and w/o seconds)"
},
"USDATEMMDDYYYY/": {
'mask': "##/##/####",
'formatcodes': 'DF',
'validRegex': '^' + months + '/' + days + '/' + '\d{4}',
'description': "US Date\n(MMDDYYYY)"
},
"USDATEMMDDYY/": {
'mask': "##/##/##",
'formatcodes': 'DF',
'validRegex': '^' + months + '/' + days + '/\d\d',
'description': "US Date\n(MMDDYY)"
},
"USDATEMMDDYYYY-": {
'mask': "##-##-####",
'formatcodes': 'DF',
'validRegex': '^' + months + '-' + days + '-' +'\d{4}',
'description': "MM-DD-YYYY"
},
"EUDATEYYYYMMDD/": {
'mask': "####/##/##",
'formatcodes': 'DF',
'validRegex': '^' + '\d{4}'+ '/' + months + '/' + days,
'description': "YYYY/MM/DD"
},
"EUDATEYYYYMMDD.": {
'mask': "####.##.##",
'formatcodes': 'DF',
'validRegex': '^' + '\d{4}'+ '.' + months + '.' + days,
'description': "YYYY.MM.DD"
},
"EUDATEDDMMYYYY/": {
'mask': "##/##/####",
'formatcodes': 'DF',
'validRegex': '^' + days + '/' + months + '/' + '\d{4}',
'description': "DD/MM/YYYY"
},
"EUDATEDDMMYYYY.": {
'mask': "##.##.####",
'formatcodes': 'DF',
'validRegex': '^' + days + '.' + months + '.' + '\d{4}',
'description': "DD.MM.YYYY"
},
"EUDATEDDMMMYYYY.": {
'mask': "##.CCC.####",
'formatcodes': 'DF',
'validRegex': '^' + days + '.' + charmonths + '.' + '\d{4}',
'description': "DD.Month.YYYY"
},
"EUDATEDDMMMYYYY/": {
'mask': "##/CCC/####",
'formatcodes': 'DF',
'validRegex': '^' + days + '/' + charmonths + '/' + '\d{4}',
'description': "DD/Month/YYYY"
},
"EUDATETIMEYYYYMMDD/HHMMSS": {
'mask': "####/##/## ##:##:## AM",
'excludeChars': am_pm_exclude,
'formatcodes': 'DF!',
'validRegex': '^' + '\d{4}'+ '/' + months + '/' + days + ' ' + hours + ':' + minutes + ':' + seconds + ' (A|P)M',
'description': "YYYY/MM/DD HH:MM:SS"
},
"EUDATETIMEYYYYMMDD.HHMMSS": {
'mask': "####.##.## ##:##:## AM",
'excludeChars': am_pm_exclude,
'formatcodes': 'DF!',
'validRegex': '^' + '\d{4}'+ '.' + months + '.' + days + ' ' + hours + ':' + minutes + ':' + seconds + ' (A|P)M',
'description': "YYYY.MM.DD HH:MM:SS"
},
"EUDATETIMEDDMMYYYY/HHMMSS": {
'mask': "##/##/#### ##:##:## AM",
'excludeChars': am_pm_exclude,
'formatcodes': 'DF!',
'validRegex': '^' + days + '/' + months + '/' + '\d{4} ' + hours + ':' + minutes + ':' + seconds + ' (A|P)M',
'description': "DD/MM/YYYY HH:MM:SS"
},
"EUDATETIMEDDMMYYYY.HHMMSS": {
'mask': "##.##.#### ##:##:## AM",
'excludeChars': am_pm_exclude,
'formatcodes': 'DF!',
'validRegex': '^' + days + '.' + months + '.' + '\d{4} ' + hours + ':' + minutes + ':' + seconds + ' (A|P)M',
'description': "DD.MM.YYYY HH:MM:SS"
},
"EUDATETIMEYYYYMMDD/HHMM": {
'mask': "####/##/## ##:## AM",
'excludeChars': am_pm_exclude,
'formatcodes': 'DF!',
'validRegex': '^' + '\d{4}'+ '/' + months + '/' + days + ' ' + hours + ':' + minutes + ' (A|P)M',
'description': "YYYY/MM/DD HH:MM"
},
"EUDATETIMEYYYYMMDD.HHMM": {
'mask': "####.##.## ##:## AM",
'excludeChars': am_pm_exclude,
'formatcodes': 'DF!',
'validRegex': '^' + '\d{4}'+ '.' + months + '.' + days + ' ' + hours + ':' + minutes + ' (A|P)M',
'description': "YYYY.MM.DD HH:MM"
},
"EUDATETIMEDDMMYYYY/HHMM": {
'mask': "##/##/#### ##:## AM",
'excludeChars': am_pm_exclude,
'formatcodes': 'DF!',
'validRegex': '^' + days + '/' + months + '/' + '\d{4} ' + hours + ':' + minutes + ' (A|P)M',
'description': "DD/MM/YYYY HH:MM"
},
"EUDATETIMEDDMMYYYY.HHMM": {
'mask': "##.##.#### ##:## AM",
'excludeChars': am_pm_exclude,
'formatcodes': 'DF!',
'validRegex': '^' + days + '.' + months + '.' + '\d{4} ' + hours + ':' + minutes + ' (A|P)M',
'description': "DD.MM.YYYY HH:MM"
},
"EUDATEMILTIMEYYYYMMDD/HHMMSS": {
'mask': "####/##/## ##:##:##",
'formatcodes': 'DF',
'validRegex': '^' + '\d{4}'+ '/' + months + '/' + days + ' ' + milhours + ':' + minutes + ':' + seconds,
'description': "YYYY/MM/DD Mil. Time"
},
"EUDATEMILTIMEYYYYMMDD.HHMMSS": {
'mask': "####.##.## ##:##:##",
'formatcodes': 'DF',
'validRegex': '^' + '\d{4}'+ '.' + months + '.' + days + ' ' + milhours + ':' + minutes + ':' + seconds,
'description': "YYYY.MM.DD Mil. Time"
},
"EUDATEMILTIMEDDMMYYYY/HHMMSS": {
'mask': "##/##/#### ##:##:##",
'formatcodes': 'DF',
'validRegex': '^' + days + '/' + months + '/' + '\d{4} ' + milhours + ':' + minutes + ':' + seconds,
'description': "DD/MM/YYYY Mil. Time"
},
"EUDATEMILTIMEDDMMYYYY.HHMMSS": {
'mask': "##.##.#### ##:##:##",
'formatcodes': 'DF',
'validRegex': '^' + days + '.' + months + '.' + '\d{4} ' + milhours + ':' + minutes + ':' + seconds,
'description': "DD.MM.YYYY Mil. Time"
},
"EUDATEMILTIMEYYYYMMDD/HHMM": {
'mask': "####/##/## ##:##",
'formatcodes': 'DF','validRegex': '^' + '\d{4}'+ '/' + months + '/' + days + ' ' + milhours + ':' + minutes,
'description': "YYYY/MM/DD Mil. Time\n(w/o seconds)"
},
"EUDATEMILTIMEYYYYMMDD.HHMM": {
'mask': "####.##.## ##:##",
'formatcodes': 'DF',
'validRegex': '^' + '\d{4}'+ '.' + months + '.' + days + ' ' + milhours + ':' + minutes,
'description': "YYYY.MM.DD Mil. Time\n(w/o seconds)"
},
"EUDATEMILTIMEDDMMYYYY/HHMM": {
'mask': "##/##/#### ##:##",
'formatcodes': 'DF',
'validRegex': '^' + days + '/' + months + '/' + '\d{4} ' + milhours + ':' + minutes,
'description': "DD/MM/YYYY Mil. Time\n(w/o seconds)"
},
"EUDATEMILTIMEDDMMYYYY.HHMM": {
'mask': "##.##.#### ##:##",
'formatcodes': 'DF',
'validRegex': '^' + days + '.' + months + '.' + '\d{4} ' + milhours + ':' + minutes,
'description': "DD.MM.YYYY Mil. Time\n(w/o seconds)"
},
"TIMEHHMMSS": {
'mask': "##:##:## AM",
'excludeChars': am_pm_exclude,
'formatcodes': 'TF!',
'validRegex': '^' + hours + ':' + minutes + ':' + seconds + ' (A|P)M',
'description': "HH:MM:SS (A|P)M\n(see TimeCtrl)"
},
"TIMEHHMM": {
'mask': "##:## AM",
'excludeChars': am_pm_exclude,
'formatcodes': 'TF!',
'validRegex': '^' + hours + ':' + minutes + ' (A|P)M',
'description': "HH:MM (A|P)M\n(see TimeCtrl)"
},
"MILTIMEHHMMSS": {
'mask': "##:##:##",
'formatcodes': 'TF',
'validRegex': '^' + milhours + ':' + minutes + ':' + seconds,
'description': "Military HH:MM:SS\n(see TimeCtrl)"
},
"MILTIMEHHMM": {
'mask': "##:##",
'formatcodes': 'TF',
'validRegex': '^' + milhours + ':' + minutes,
'description': "Military HH:MM\n(see TimeCtrl)"
},
"USSOCIALSEC": {
'mask': "###-##-####",
'formatcodes': 'F',
'validRegex': "\d{3}-\d{2}-\d{4}",
'description': "Social Sec#"
},
"CREDITCARD": {
'mask': "####-####-####-####",
'formatcodes': 'F',
'validRegex': "\d{4}-\d{4}-\d{4}-\d{4}",
'description': "Credit Card"
},
"EXPDATEMMYY": {
'mask': "##/##",
'formatcodes': "F",
'validRegex': "^" + months + "/\d\d",
'description': "Expiration MM/YY"
},
"USZIP": {
'mask': "#####",
'formatcodes': 'F',
'validRegex': "^\d{5}",
'description': "US 5-digit zip code"
},
"USZIPPLUS4": {
'mask': "#####-####",
'formatcodes': 'F',
'validRegex': "\d{5}-(\s{4}|\d{4})",
'description': "US zip+4 code"
},
"PERCENT": {
'mask': "0.##",
'formatcodes': 'F',
'validRegex': "^0.\d\d",
'description': "Percentage"
},
"AGE": {
'mask': "###",
'formatcodes': "F",
'validRegex': "^[1-9]{1} |[1-9][0-9] |1[0|1|2][0-9]",
'description': "Age"
},
"EMAIL": {
'mask': "XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX",
'excludeChars': " \\/*&%$#!+='\"",
'formatcodes': "F>",
'validRegex': "^\w+([\-\.]\w+)*@((([a-zA-Z0-9]+(\-[a-zA-Z0-9]+)*\.)+)[a-zA-Z]{2,4}|\[(\d|\d\d|(1\d\d|2[0-4]\d|25[0-5]))(\.(\d|\d\d|(1\d\d|2[0-4]\d|25[0-5]))){3}\]) *$",
'description': "Email address"
},
"IPADDR": {
'mask': "###.###.###.###",
'formatcodes': 'F_Sr',
'validRegex': "( \d| \d\d|(1\d\d|2[0-4]\d|25[0-5]))(\.( \d| \d\d|(1\d\d|2[0-4]\d|25[0-5]))){3}",
'description': "IP Address\n(see IpAddrCtrl)"
}
}
# build demo-friendly dictionary of descriptions of autoformats
autoformats = []
for key, value in masktags.items():
autoformats.append((key, value['description']))
autoformats.sort()
## ---------- ---------- ---------- ---------- ---------- ---------- ----------
class Field:
valid_params = {
'index': None, ## which field of mask; set by parent control.
'mask': "", ## mask chars for this field
'extent': (), ## (edit start, edit_end) of field; set by parent control.
'formatcodes': "", ## codes indicating formatting options for the control
'fillChar': ' ', ## used as initial value for each mask position if initial value is not given
'groupChar': ',', ## used with numeric fields; indicates what char groups 3-tuple digits
'decimalChar': '.', ## used with numeric fields; indicates what char separates integer from fraction
'shiftDecimalChar': '>', ## used with numeric fields, indicates what is above the decimal point char on keyboard
'useParensForNegatives': False, ## used with numeric fields, indicates that () should be used vs. - to show negative numbers.
'defaultValue': "", ## use if you want different positional defaults vs. all the same fillChar
'excludeChars': "", ## optional string of chars to exclude even if main mask type does
'includeChars': "", ## optional string of chars to allow even if main mask type doesn't
'validRegex': "", ## optional regular expression to use to validate the control
'validRange': (), ## Optional hi-low range for numerics
'choices': [], ## Optional list for character expressions
'choiceRequired': False, ## If choices supplied this specifies if valid value must be in the list
'compareNoCase': False, ## Optional flag to indicate whether or not to use case-insensitive list search
'autoSelect': False, ## Set to True to try auto-completion on each keystroke:
'validFunc': None, ## Optional function for defining additional, possibly dynamic validation constraints on contrl
'validRequired': False, ## Set to True to disallow input that results in an invalid value
'emptyInvalid': False, ## Set to True to make EMPTY = INVALID
'description': "", ## primarily for autoformats, but could be useful elsewhere
}
# This list contains all parameters that when set at the control level should
# propagate down to each field:
propagating_params = ('fillChar', 'groupChar', 'decimalChar','useParensForNegatives',
'compareNoCase', 'emptyInvalid', 'validRequired')
def __init__(self, **kwargs):
"""
This is the "constructor" for setting up parameters for fields.
a field_index of -1 is used to indicate "the entire control."
"""
## dbg('Field::Field', indent=1)
# Validate legitimate set of parameters:
for key in kwargs.keys():
if key not in Field.valid_params.keys():
## dbg(indent=0)
raise TypeError('invalid parameter "%s"' % (key))
# Set defaults for each parameter for this instance, and fully
# populate initial parameter list for configuration:
for key, value in Field.valid_params.items():
setattr(self, '_' + key, copy.copy(value))
if not kwargs.has_key(key):
kwargs[key] = copy.copy(value)
self._autoCompleteIndex = -1
self._SetParameters(**kwargs)
self._ValidateParameters(**kwargs)
## dbg(indent=0)
def _SetParameters(self, **kwargs):
"""
This function can be used to set individual or multiple parameters for
a masked edit field parameter after construction.
"""
dbg(suspend=1)
dbg('maskededit.Field::_SetParameters', indent=1)
# Validate keyword arguments:
for key in kwargs.keys():
if key not in Field.valid_params.keys():
dbg(indent=0, suspend=0)
raise AttributeError('invalid keyword argument "%s"' % key)
if self._index is not None: dbg('field index:', self._index)
dbg('parameters:', indent=1)
for key, value in kwargs.items():
dbg('%s:' % key, value)
dbg(indent=0)
old_fillChar = self._fillChar # store so we can change choice lists accordingly if it changes
# First, Assign all parameters specified:
for key in Field.valid_params.keys():
if kwargs.has_key(key):
setattr(self, '_' + key, kwargs[key] )
if kwargs.has_key('formatcodes'): # (set/changed)
self._forceupper = '!' in self._formatcodes
self._forcelower = '^' in self._formatcodes
self._groupdigits = ',' in self._formatcodes
self._okSpaces = '_' in self._formatcodes
self._padZero = '0' in self._formatcodes
self._autofit = 'F' in self._formatcodes
self._insertRight = 'r' in self._formatcodes
self._allowInsert = '>' in self._formatcodes
self._alignRight = 'R' in self._formatcodes or 'r' in self._formatcodes
self._moveOnFieldFull = not '<' in self._formatcodes
self._selectOnFieldEntry = 'S' in self._formatcodes
if kwargs.has_key('groupChar'):
self._groupChar = kwargs['groupChar']
if kwargs.has_key('decimalChar'):
self._decimalChar = kwargs['decimalChar']
if kwargs.has_key('shiftDecimalChar'):
self._shiftDecimalChar = kwargs['shiftDecimalChar']
if kwargs.has_key('formatcodes') or kwargs.has_key('validRegex'):
self._regexMask = 'V' in self._formatcodes and self._validRegex
if kwargs.has_key('fillChar'):
self._old_fillChar = old_fillChar
## dbg("self._old_fillChar: '%s'" % self._old_fillChar)
if kwargs.has_key('mask') or kwargs.has_key('validRegex'): # (set/changed)
self._isInt = isInteger(self._mask)
dbg('isInt?', self._isInt, 'self._mask:"%s"' % self._mask)
dbg(indent=0, suspend=0)
def _ValidateParameters(self, **kwargs):
"""
This function can be used to validate individual or multiple parameters for
a masked edit field parameter after construction.
"""
dbg(suspend=1)
dbg('maskededit.Field::_ValidateParameters', indent=1)
if self._index is not None: dbg('field index:', self._index)
## dbg('parameters:', indent=1)
## for key, value in kwargs.items():
## dbg('%s:' % key, value)
## dbg(indent=0)
## dbg("self._old_fillChar: '%s'" % self._old_fillChar)
# Verify proper numeric format params:
if self._groupdigits and self._groupChar == self._decimalChar:
dbg(indent=0, suspend=0)
raise AttributeError("groupChar '%s' cannot be the same as decimalChar '%s'" % (self._groupChar, self._decimalChar))
# Now go do validation, semantic and inter-dependency parameter processing:
if kwargs.has_key('choices') or kwargs.has_key('compareNoCase') or kwargs.has_key('choiceRequired'): # (set/changed)
self._compareChoices = [choice.strip() for choice in self._choices]
if self._compareNoCase and self._choices:
self._compareChoices = [item.lower() for item in self._compareChoices]
if kwargs.has_key('choices'):
self._autoCompleteIndex = -1
if kwargs.has_key('validRegex'): # (set/changed)
if self._validRegex:
try:
if self._compareNoCase:
self._filter = re.compile(self._validRegex, re.IGNORECASE)
else:
self._filter = re.compile(self._validRegex)
except:
dbg(indent=0, suspend=0)
raise TypeError('%s: validRegex "%s" not a legal regular expression' % (str(self._index), self._validRegex))
else:
self._filter = None
if kwargs.has_key('validRange'): # (set/changed)
self._hasRange = False
self._rangeHigh = 0
self._rangeLow = 0
if self._validRange:
if type(self._validRange) != types.TupleType or len( self._validRange )!= 2 or self._validRange[0] > self._validRange[1]:
dbg(indent=0, suspend=0)
raise TypeError('%s: validRange %s parameter must be tuple of form (a,b) where a <= b'
% (str(self._index), repr(self._validRange)) )
self._hasRange = True
self._rangeLow = self._validRange[0]
self._rangeHigh = self._validRange[1]
if kwargs.has_key('choices') or (len(self._choices) and len(self._choices[0]) != len(self._mask)): # (set/changed)
self._hasList = False
if self._choices and type(self._choices) not in (types.TupleType, types.ListType):
dbg(indent=0, suspend=0)
raise TypeError('%s: choices must be a sequence of strings' % str(self._index))
elif len( self._choices) > 0:
for choice in self._choices:
if type(choice) not in (types.StringType, types.UnicodeType):
dbg(indent=0, suspend=0)
raise TypeError('%s: choices must be a sequence of strings' % str(self._index))
length = len(self._mask)
dbg('len(%s)' % self._mask, length, 'len(self._choices):', len(self._choices), 'length:', length, 'self._alignRight?', self._alignRight)
if len(self._choices) and length:
if len(self._choices[0]) > length:
# changed mask without respecifying choices; readjust the width as appropriate:
self._choices = [choice.strip() for choice in self._choices]
if self._alignRight:
self._choices = [choice.rjust( length ) for choice in self._choices]
else:
self._choices = [choice.ljust( length ) for choice in self._choices]
dbg('aligned choices:', self._choices)
if hasattr(self, '_template'):
# Verify each choice specified is valid:
for choice in self._choices:
if self.IsEmpty(choice) and not self._validRequired:
# allow empty values even if invalid, (just colored differently)
continue
if not self.IsValid(choice):
dbg(indent=0, suspend=0)
raise ValueError('%s: "%s" is not a valid value for the control as specified.' % (str(self._index), choice))
self._hasList = True
## dbg("kwargs.has_key('fillChar')?", kwargs.has_key('fillChar'), "len(self._choices) > 0?", len(self._choices) > 0)
## dbg("self._old_fillChar:'%s'" % self._old_fillChar, "self._fillChar: '%s'" % self._fillChar)
if kwargs.has_key('fillChar') and len(self._choices) > 0:
if kwargs['fillChar'] != ' ':
self._choices = [choice.replace(' ', self._fillChar) for choice in self._choices]
else:
self._choices = [choice.replace(self._old_fillChar, self._fillChar) for choice in self._choices]
dbg('updated choices:', self._choices)
if kwargs.has_key('autoSelect') and kwargs['autoSelect']:
if not self._hasList:
dbg('no list to auto complete; ignoring "autoSelect=True"')
self._autoSelect = False
# reset field validity assumption:
self._valid = True
dbg(indent=0, suspend=0)
def _GetParameter(self, paramname):
"""
Routine for retrieving the value of any given parameter
"""
if Field.valid_params.has_key(paramname):
return getattr(self, '_' + paramname)
else:
TypeError('Field._GetParameter: invalid parameter "%s"' % key)
def IsEmpty(self, slice):
"""
Indicates whether the specified slice is considered empty for the
field.
"""
dbg('Field::IsEmpty("%s")' % slice, indent=1)
if not hasattr(self, '_template'):
dbg(indent=0)
raise AttributeError('_template')
dbg('self._template: "%s"' % self._template)
dbg('self._defaultValue: "%s"' % str(self._defaultValue))
if slice == self._template and not self._defaultValue:
dbg(indent=0)
return True
elif slice == self._template:
empty = True
for pos in range(len(self._template)):
## dbg('slice[%(pos)d] != self._fillChar?' %locals(), slice[pos] != self._fillChar[pos])
if slice[pos] not in (' ', self._fillChar):
empty = False
break
dbg("IsEmpty? %(empty)d (do all mask chars == fillChar?)" % locals(), indent=0)
return empty
else:
dbg("IsEmpty? 0 (slice doesn't match template)", indent=0)
return False
def IsValid(self, slice):
"""
Indicates whether the specified slice is considered a valid value for the
field.
"""
dbg(suspend=1)
dbg('Field[%s]::IsValid("%s")' % (str(self._index), slice), indent=1)
valid = True # assume true to start
if self.IsEmpty(slice):
dbg(indent=0, suspend=0)
if self._emptyInvalid:
return False
else:
return True
elif self._hasList and self._choiceRequired:
dbg("(member of list required)")
# do case-insensitive match on list; strip surrounding whitespace from slice (already done for choices):
if self._fillChar != ' ':
slice = slice.replace(self._fillChar, ' ')
dbg('updated slice:"%s"' % slice)
compareStr = slice.strip()
if self._compareNoCase:
compareStr = compareStr.lower()
valid = compareStr in self._compareChoices
elif self._hasRange and not self.IsEmpty(slice):
dbg('validating against range')
try:
# allow float as well as int ranges (int comparisons for free.)
valid = self._rangeLow <= float(slice) <= self._rangeHigh
except:
valid = False
elif self._validRegex and self._filter:
dbg('validating against regex')
valid = (re.match( self._filter, slice) is not None)
if valid and self._validFunc:
dbg('validating against supplied function')
valid = self._validFunc(slice)
dbg('valid?', valid, indent=0, suspend=0)
return valid
def _AdjustField(self, slice):
""" 'Fixes' an integer field. Right or left-justifies, as required."""
dbg('Field::_AdjustField("%s")' % slice, indent=1)
length = len(self._mask)
## dbg('length(self._mask):', length)
## dbg('self._useParensForNegatives?', self._useParensForNegatives)
if self._isInt:
if self._useParensForNegatives:
signpos = slice.find('(')
right_signpos = slice.find(')')
intStr = slice.replace('(', '').replace(')', '') # drop sign, if any
else:
signpos = slice.find('-')
intStr = slice.replace( '-', '' ) # drop sign, if any
right_signpos = -1
intStr = intStr.replace(' ', '') # drop extra spaces
intStr = string.replace(intStr,self._fillChar,"") # drop extra fillchars
intStr = string.replace(intStr,"-","") # drop sign, if any
intStr = string.replace(intStr, self._groupChar, "") # lose commas/dots
## dbg('intStr:"%s"' % intStr)
start, end = self._extent
field_len = end - start
if not self._padZero and len(intStr) != field_len and intStr.strip():
intStr = str(long(intStr))
## dbg('raw int str: "%s"' % intStr)
## dbg('self._groupdigits:', self._groupdigits, 'self._formatcodes:', self._formatcodes)
if self._groupdigits:
new = ''
cnt = 1
for i in range(len(intStr)-1, -1, -1):
new = intStr[i] + new
if (cnt) % 3 == 0:
new = self._groupChar + new
cnt += 1
if new and new[0] == self._groupChar:
new = new[1:]
if len(new) <= length:
# expanded string will still fit and leave room for sign:
intStr = new
# else... leave it without the commas...
dbg('padzero?', self._padZero)
dbg('len(intStr):', len(intStr), 'field length:', length)
if self._padZero and len(intStr) < length:
intStr = '0' * (length - len(intStr)) + intStr
if signpos != -1: # we had a sign before; restore it
if self._useParensForNegatives:
intStr = '(' + intStr[1:]
if right_signpos != -1:
intStr += ')'
else:
intStr = '-' + intStr[1:]
elif signpos != -1 and slice[0:signpos].strip() == '': # - was before digits
if self._useParensForNegatives:
intStr = '(' + intStr
if right_signpos != -1:
intStr += ')'
else:
intStr = '-' + intStr
elif right_signpos != -1:
# must have had ')' but '(' was before field; re-add ')'
intStr += ')'
slice = intStr
slice = slice.strip() # drop extra spaces
if self._alignRight: ## Only if right-alignment is enabled
slice = slice.rjust( length )
else:
slice = slice.ljust( length )
if self._fillChar != ' ':
slice = slice.replace(' ', self._fillChar)
dbg('adjusted slice: "%s"' % slice, indent=0)
return slice
## ---------- ---------- ---------- ---------- ---------- ---------- ----------
class MaskedEditMixin:
"""
This class allows us to abstract the masked edit functionality that could
be associated with any text entry control. (eg. wxTextCtrl, wxComboBox, etc.)
"""
valid_ctrl_params = {
'mask': 'XXXXXXXXXXXXX', ## mask string for formatting this control
'autoformat': "", ## optional auto-format code to set format from masktags dictionary
'fields': {}, ## optional list/dictionary of maskededit.Field class instances, indexed by position in mask
'datestyle': 'MDY', ## optional date style for date-type values. Can trigger autocomplete year
'autoCompleteKeycodes': [], ## Optional list of additional keycodes which will invoke field-auto-complete
'useFixedWidthFont': True, ## Use fixed-width font instead of default for base control
'retainFieldValidation': False, ## Set this to true if setting control-level parameters independently,
## from field validation constraints
'emptyBackgroundColour': "White",
'validBackgroundColour': "White",
'invalidBackgroundColour': "Yellow",
'foregroundColour': "Black",
'signedForegroundColour': "Red",
'demo': False}
def __init__(self, name = 'wxMaskedEdit', **kwargs):
"""
This is the "constructor" for setting up the mixin variable parameters for the composite class.
"""
self.name = name
# set up flag for doing optional things to base control if possible
if not hasattr(self, 'controlInitialized'):
self.controlInitialized = False
# Set internal state var for keeping track of whether or not a character
# action results in a modification of the control, since .SetValue()
# doesn't modify the base control's internal state:
self.modified = False
self._previous_mask = None
# Validate legitimate set of parameters:
for key in kwargs.keys():
if key.replace('Color', 'Colour') not in MaskedEditMixin.valid_ctrl_params.keys() + Field.valid_params.keys():
raise TypeError('%s: invalid parameter "%s"' % (name, key))
## Set up dictionary that can be used by subclasses to override or add to default
## behavior for individual characters. Derived subclasses needing to change
## default behavior for keys can either redefine the default functions for the
## common keys or add functions for specific keys to this list. Each function
## added should take the key event as argument, and return False if the key
## requires no further processing.
##
## Initially populated with navigation and function control keys:
self._keyhandlers = {
# default navigation keys and handlers:
wx.WXK_BACK: self._OnErase,
wx.WXK_LEFT: self._OnArrow,
wx.WXK_RIGHT: self._OnArrow,
wx.WXK_UP: self._OnAutoCompleteField,
wx.WXK_DOWN: self._OnAutoCompleteField,
wx.WXK_TAB: self._OnChangeField,
wx.WXK_HOME: self._OnHome,
wx.WXK_END: self._OnEnd,
wx.WXK_RETURN: self._OnReturn,
wx.WXK_PRIOR: self._OnAutoCompleteField,
wx.WXK_NEXT: self._OnAutoCompleteField,
# default function control keys and handlers:
wx.WXK_DELETE: self._OnErase,
WXK_CTRL_A: self._OnCtrl_A,
WXK_CTRL_C: self._OnCtrl_C,
WXK_CTRL_S: self._OnCtrl_S,
WXK_CTRL_V: self._OnCtrl_V,
WXK_CTRL_X: self._OnCtrl_X,
WXK_CTRL_Z: self._OnCtrl_Z,
}
## bind standard navigational and control keycodes to this instance,
## so that they can be augmented and/or changed in derived classes:
self._nav = list(nav)
self._control = list(control)
## Dynamically evaluate and store string constants for mask chars
## so that locale settings can be made after this module is imported
## and the controls created after that is done can allow the
## appropriate characters:
self.maskchardict = {
'#': string.digits,
'A': string.uppercase,
'a': string.lowercase,
'X': string.letters + string.punctuation + string.digits,
'C': string.letters,
'N': string.letters + string.digits,
'&': string.punctuation
}
## self._ignoreChange is used by MaskedComboBox, because
## of the hack necessary to determine the selection; it causes
## EVT_TEXT messages from the combobox to be ignored if set.
self._ignoreChange = False
# These are used to keep track of previous value, for undo functionality:
self._curValue = None
self._prevValue = None
self._valid = True
# Set defaults for each parameter for this instance, and fully
# populate initial parameter list for configuration:
for key, value in MaskedEditMixin.valid_ctrl_params.items():
setattr(self, '_' + key, copy.copy(value))
if not kwargs.has_key(key):
## dbg('%s: "%s"' % (key, repr(value)))
kwargs[key] = copy.copy(value)
# Create a "field" that holds global parameters for control constraints
self._ctrl_constraints = self._fields[-1] = Field(index=-1)
self.SetCtrlParameters(**kwargs)
def SetCtrlParameters(self, **kwargs):
"""
This public function can be used to set individual or multiple masked edit
parameters after construction.
"""
dbg(suspend=1)
dbg('MaskedEditMixin::SetCtrlParameters', indent=1)
## dbg('kwargs:', indent=1)
## for key, value in kwargs.items():
## dbg(key, '=', value)
## dbg(indent=0)
# Validate keyword arguments:
constraint_kwargs = {}
ctrl_kwargs = {}
for key, value in kwargs.items():
key = key.replace('Color', 'Colour') # for b-c, and standard wxPython spelling
if key not in MaskedEditMixin.valid_ctrl_params.keys() + Field.valid_params.keys():
dbg(indent=0, suspend=0)
raise TypeError('Invalid keyword argument "%s" for control "%s"' % (key, self.name))
elif key in Field.valid_params.keys():
constraint_kwargs[key] = value
else:
ctrl_kwargs[key] = value
mask = None
reset_args = {}
if ctrl_kwargs.has_key('autoformat'):
autoformat = ctrl_kwargs['autoformat']
else:
autoformat = None
if autoformat != self._autoformat and autoformat in masktags.keys():
dbg('autoformat:', autoformat)
self._autoformat = autoformat
mask = masktags[self._autoformat]['mask']
# gather rest of any autoformat parameters:
for param, value in masktags[self._autoformat].items():
if param == 'mask': continue # (must be present; already accounted for)
constraint_kwargs[param] = value
elif autoformat and not autoformat in masktags.keys():
raise AttributeError('invalid value for autoformat parameter: %s' % repr(autoformat))
else:
dbg('autoformat not selected')
if kwargs.has_key('mask'):
mask = kwargs['mask']
dbg('mask:', mask)
## Assign style flags
if mask is None:
dbg('preserving previous mask')
mask = self._previous_mask # preserve previous mask
else:
dbg('mask (re)set')
reset_args['reset_mask'] = mask
constraint_kwargs['mask'] = mask
# wipe out previous fields; preserve new control-level constraints
self._fields = {-1: self._ctrl_constraints}
if ctrl_kwargs.has_key('fields'):
# do field parameter type validation, and conversion to internal dictionary
# as appropriate:
fields = ctrl_kwargs['fields']
if type(fields) in (types.ListType, types.TupleType):
for i in range(len(fields)):
field = fields[i]
if not isinstance(field, Field):
dbg(indent=0, suspend=0)
raise AttributeError('invalid type for field parameter: %s' % repr(field))
self._fields[i] = field
elif type(fields) == types.DictionaryType:
for index, field in fields.items():
if not isinstance(field, Field):
dbg(indent=0, suspend=0)
raise AttributeError('invalid type for field parameter: %s' % repr(field))
self._fields[index] = field
else:
dbg(indent=0, suspend=0)
raise AttributeError('fields parameter must be a list or dictionary; not %s' % repr(fields))
# Assign constraint parameters for entire control:
## dbg('control constraints:', indent=1)
## for key, value in constraint_kwargs.items():
## dbg('%s:' % key, value)
## dbg(indent=0)
# determine if changing parameters that should affect the entire control:
for key in MaskedEditMixin.valid_ctrl_params.keys():
if key in ( 'mask', 'fields' ): continue # (processed separately)
if ctrl_kwargs.has_key(key):
setattr(self, '_' + key, ctrl_kwargs[key])
# Validate color parameters, converting strings to named colors and validating
# result if appropriate:
for key in ('emptyBackgroundColour', 'invalidBackgroundColour', 'validBackgroundColour',
'foregroundColour', 'signedForegroundColour'):
if ctrl_kwargs.has_key(key):
if type(ctrl_kwargs[key]) in (types.StringType, types.UnicodeType):
c = wx.NamedColour(ctrl_kwargs[key])
if c.Get() == (-1, -1, -1):
raise TypeError('%s not a legal color specification for %s' % (repr(ctrl_kwargs[key]), key))
else:
# replace attribute with wxColour object:
setattr(self, '_' + key, c)
# attach a python dynamic attribute to wxColour for debug printouts
c._name = ctrl_kwargs[key]
elif type(ctrl_kwargs[key]) != type(wx.BLACK):
raise TypeError('%s not a legal color specification for %s' % (repr(ctrl_kwargs[key]), key))
dbg('self._retainFieldValidation:', self._retainFieldValidation)
if not self._retainFieldValidation:
# Build dictionary of any changing parameters which should be propagated to the
# component fields:
for arg in Field.propagating_params:
## dbg('kwargs.has_key(%s)?' % arg, kwargs.has_key(arg))
## dbg('getattr(self._ctrl_constraints, _%s)?' % arg, getattr(self._ctrl_constraints, '_'+arg))
reset_args[arg] = kwargs.has_key(arg) and kwargs[arg] != getattr(self._ctrl_constraints, '_'+arg)
## dbg('reset_args[%s]?' % arg, reset_args[arg])
# Set the control-level constraints:
self._ctrl_constraints._SetParameters(**constraint_kwargs)
# This routine does the bulk of the interdependent parameter processing, determining
# the field extents of the mask if changed, resetting parameters as appropriate,
# determining the overall template value for the control, etc.
self._configure(mask, **reset_args)
# now that we've propagated the field constraints and mask portions to the
# various fields, validate the constraints
self._ctrl_constraints._ValidateParameters(**constraint_kwargs)
# Validate that all choices for given fields are at least of the
# necessary length, and that they all would be valid pastes if pasted
# into their respective fields:
## dbg('validating choices')
self._validateChoices()
self._autofit = self._ctrl_constraints._autofit
self._isNeg = False
self._isDate = 'D' in self._ctrl_constraints._formatcodes and isDateType(mask)
self._isTime = 'T' in self._ctrl_constraints._formatcodes and isTimeType(mask)
if self._isDate:
# Set _dateExtent, used in date validation to locate date in string;
# always set as though year will be 4 digits, even if mask only has
# 2 digits, so we can always properly process the intended year for
# date validation (leap years, etc.)
if self._mask.find('CCC') != -1: self._dateExtent = 11
else: self._dateExtent = 10
self._4digityear = len(self._mask) > 8 and self._mask[9] == '#'
if self._isDate and self._autoformat:
# Auto-decide datestyle:
if self._autoformat.find('MDDY') != -1: self._datestyle = 'MDY'
elif self._autoformat.find('YMMD') != -1: self._datestyle = 'YMD'
elif self._autoformat.find('YMMMD') != -1: self._datestyle = 'YMD'
elif self._autoformat.find('DMMY') != -1: self._datestyle = 'DMY'
elif self._autoformat.find('DMMMY') != -1: self._datestyle = 'DMY'
if self.controlInitialized:
# Then the base control is available for configuration;
# take action on base control based on new settings, as appropriate.
if kwargs.has_key('useFixedWidthFont'):
# Set control font - fixed width by default
self._setFont()
if reset_args.has_key('reset_mask'):
dbg('reset mask')
curvalue = self._GetValue()
if curvalue.strip():
try:
dbg('attempting to _SetInitialValue(%s)' % self._GetValue())
self._SetInitialValue(self._GetValue())
except Exception, e:
dbg('exception caught:', e)
dbg("current value doesn't work; attempting to reset to template")
self._SetInitialValue()
else:
dbg('attempting to _SetInitialValue() with template')
self._SetInitialValue()
elif kwargs.has_key('useParensForNegatives'):
newvalue = self._getSignedValue()[0]
if newvalue is not None:
# Adjust for new mask:
if len(newvalue) < len(self._mask):
newvalue += ' '
elif len(newvalue) > len(self._mask):
if newvalue[-1] in (' ', ')'):
newvalue = newvalue[:-1]
dbg('reconfiguring value for parens:"%s"' % newvalue)
self._SetValue(newvalue)
if self._prevValue != newvalue:
self._prevValue = newvalue # disallow undo of sign type
if self._autofit:
dbg('setting client size to:', self._CalcSize())
self.SetClientSize(self._CalcSize())
# Set value/type-specific formatting
self._applyFormatting()
dbg(indent=0, suspend=0)
def SetMaskParameters(self, **kwargs):
""" old name for this function """
return self.SetCtrlParameters(**kwargs)
def GetCtrlParameter(self, paramname):
"""
Routine for retrieving the value of any given parameter
"""
if MaskedEditMixin.valid_ctrl_params.has_key(paramname.replace('Color','Colour')):
return getattr(self, '_' + paramname.replace('Color', 'Colour'))
elif Field.valid_params.has_key(paramname):
return self._ctrl_constraints._GetParameter(paramname)
else:
TypeError('"%s".GetCtrlParameter: invalid parameter "%s"' % (self.name, paramname))
def GetMaskParameter(self, paramname):
""" old name for this function """
return self.GetCtrlParameter(paramname)
# ## TRICKY BIT: to avoid a ton of boiler-plate, and to
# ## automate the getter/setter generation for each valid
# ## control parameter so we never forget to add the
# ## functions when adding parameters, this loop
# ## programmatically adds them to the class:
# ## (This makes it easier for Designers like Boa to
# ## deal with masked controls.)
# ##
for param in valid_ctrl_params.keys() + Field.valid_params.keys():
propname = param[0].upper() + param[1:]
exec('def Set%s(self, value): self.SetCtrlParameters(%s=value)' % (propname, param))
exec('def Get%s(self): return self.GetCtrlParameter("%s")''' % (propname, param))
if param.find('Colour') != -1:
# add non-british spellings, for backward-compatibility
propname.replace('Colour', 'Color')
exec('def Set%s(self, value): self.SetCtrlParameters(%s=value)' % (propname, param))
exec('def Get%s(self): return self.GetCtrlParameter("%s")''' % (propname, param))
def SetFieldParameters(self, field_index, **kwargs):
"""
Routine provided to modify the parameters of a given field.
Because changes to fields can affect the overall control,
direct access to the fields is prevented, and the control
is always "reconfigured" after setting a field parameter.
"""
if field_index not in self._field_indices:
raise IndexError('%s is not a valid field for control "%s".' % (str(field_index), self.name))
# set parameters as requested:
self._fields[field_index]._SetParameters(**kwargs)
# Possibly reprogram control template due to resulting changes, and ensure
# control-level params are still propagated to fields:
self._configure(self._previous_mask)
self._fields[field_index]._ValidateParameters(**kwargs)
if self.controlInitialized:
if kwargs.has_key('fillChar') or kwargs.has_key('defaultValue'):
self._SetInitialValue()
if self._autofit:
self.SetClientSize(self._CalcSize())
# Set value/type-specific formatting
self._applyFormatting()
def GetFieldParameter(self, field_index, paramname):
"""
Routine provided for getting a parameter of an individual field.
"""
if field_index not in self._field_indices:
raise IndexError('%s is not a valid field for control "%s".' % (str(field_index), self.name))
elif Field.valid_params.has_key(paramname):
return self._fields[field_index]._GetParameter(paramname)
else:
TypeError('"%s".GetFieldParameter: invalid parameter "%s"' % (self.name, paramname))
def _SetKeycodeHandler(self, keycode, func):
"""
This function adds and/or replaces key event handling functions
used by the control. <func> should take the event as argument
and return False if no further action on the key is necessary.
"""
self._keyhandlers[keycode] = func
def _SetKeyHandler(self, char, func):
"""
This function adds and/or replaces key event handling functions
for ascii characters. <func> should take the event as argument
and return False if no further action on the key is necessary.
"""
self._SetKeycodeHandler(ord(char), func)
def _AddNavKeycode(self, keycode, handler=None):
"""
This function allows a derived subclass to augment the list of
keycodes that are considered "navigational" keys.
"""
self._nav.append(keycode)
if handler:
self._keyhandlers[keycode] = handler
def _AddNavKey(self, char, handler=None):
"""
This function is a convenience function so you don't have to
remember to call ord() for ascii chars to be used for navigation.
"""
self._AddNavKeycode(ord(char), handler)
def _GetNavKeycodes(self):
"""
This function retrieves the current list of navigational keycodes for
the control.
"""
return self._nav
def _SetNavKeycodes(self, keycode_func_tuples):
"""
This function allows you to replace the current list of keycode processed
as navigation keys, and bind associated optional keyhandlers.
"""
self._nav = []
for keycode, func in keycode_func_tuples:
self._nav.append(keycode)
if func:
self._keyhandlers[keycode] = func
def _processMask(self, mask):
"""
This subroutine expands {n} syntax in mask strings, and looks for escaped
special characters and returns the expanded mask, and an dictionary
of booleans indicating whether or not a given position in the mask is
a mask character or not.
"""
dbg('_processMask: mask', mask, indent=1)
# regular expression for parsing c{n} syntax:
rex = re.compile('([' +string.join(maskchars,"") + '])\{(\d+)\}')
s = mask
match = rex.search(s)
while match: # found an(other) occurrence
maskchr = s[match.start(1):match.end(1)] # char to be repeated
repcount = int(s[match.start(2):match.end(2)]) # the number of times
replacement = string.join( maskchr * repcount, "") # the resulting substr
s = s[:match.start(1)] + replacement + s[match.end(2)+1:] #account for trailing '}'
match = rex.search(s) # look for another such entry in mask
self._decimalChar = self._ctrl_constraints._decimalChar
self._shiftDecimalChar = self._ctrl_constraints._shiftDecimalChar
self._isFloat = isFloatingPoint(s) and not self._ctrl_constraints._validRegex
self._isInt = isInteger(s) and not self._ctrl_constraints._validRegex
self._signOk = '-' in self._ctrl_constraints._formatcodes and (self._isFloat or self._isInt)
self._useParens = self._ctrl_constraints._useParensForNegatives
self._isNeg = False
## dbg('self._signOk?', self._signOk, 'self._useParens?', self._useParens)
## dbg('isFloatingPoint(%s)?' % (s), isFloatingPoint(s),
## 'ctrl regex:', self._ctrl_constraints._validRegex)
if self._signOk and s[0] != ' ':
s = ' ' + s
if self._ctrl_constraints._defaultValue and self._ctrl_constraints._defaultValue[0] != ' ':
self._ctrl_constraints._defaultValue = ' ' + self._ctrl_constraints._defaultValue
self._signpos = 0
if self._useParens:
s += ' '
self._ctrl_constraints._defaultValue += ' '
# Now, go build up a dictionary of booleans, indexed by position,
# indicating whether or not a given position is masked or not
ismasked = {}
i = 0
while i < len(s):
if s[i] == '\\': # if escaped character:
ismasked[i] = False # mark position as not a mask char
if i+1 < len(s): # if another char follows...
s = s[:i] + s[i+1:] # elide the '\'
if i+2 < len(s) and s[i+1] == '\\':
# if next char also a '\', char is a literal '\'
s = s[:i] + s[i+1:] # elide the 2nd '\' as well
else: # else if special char, mark position accordingly
ismasked[i] = s[i] in maskchars
## dbg('ismasked[%d]:' % i, ismasked[i], s)
i += 1 # increment to next char
## dbg('ismasked:', ismasked)
dbg('new mask: "%s"' % s, indent=0)
return s, ismasked
def _calcFieldExtents(self):
"""
Subroutine responsible for establishing/configuring field instances with
indices and editable extents appropriate to the specified mask, and building
the lookup table mapping each position to the corresponding field.
"""
self._lookupField = {}
if self._mask:
## Create dictionary of positions,characters in mask
self.maskdict = {}
for charnum in range( len( self._mask)):
self.maskdict[charnum] = self._mask[charnum:charnum+1]
# For the current mask, create an ordered list of field extents
# and a dictionary of positions that map to field indices:
if self._signOk: start = 1
else: start = 0
if self._isFloat:
# Skip field "discovery", and just construct a 2-field control with appropriate
# constraints for a floating-point entry.
# .setdefault always constructs 2nd argument even if not needed, so we do this
# the old-fashioned way...
if not self._fields.has_key(0):
self._fields[0] = Field()
if not self._fields.has_key(1):
self._fields[1] = Field()
self._decimalpos = string.find( self._mask, '.')
dbg('decimal pos =', self._decimalpos)
formatcodes = self._fields[0]._GetParameter('formatcodes')
if 'R' not in formatcodes: formatcodes += 'R'
self._fields[0]._SetParameters(index=0, extent=(start, self._decimalpos),
mask=self._mask[start:self._decimalpos], formatcodes=formatcodes)
end = len(self._mask)
if self._signOk and self._useParens:
end -= 1
self._fields[1]._SetParameters(index=1, extent=(self._decimalpos+1, end),
mask=self._mask[self._decimalpos+1:end])
for i in range(self._decimalpos+1):
self._lookupField[i] = 0
for i in range(self._decimalpos+1, len(self._mask)+1):
self._lookupField[i] = 1
elif self._isInt:
# Skip field "discovery", and just construct a 1-field control with appropriate
# constraints for a integer entry.
if not self._fields.has_key(0):
self._fields[0] = Field(index=0)
end = len(self._mask)
if self._signOk and self._useParens:
end -= 1
self._fields[0]._SetParameters(index=0, extent=(start, end),
mask=self._mask[start:end])
for i in range(len(self._mask)+1):
self._lookupField[i] = 0
else:
# generic control; parse mask to figure out where the fields are:
field_index = 0
pos = 0
i = self._findNextEntry(pos,adjustInsert=False) # go to 1st entry point:
if i < len(self._mask): # no editable chars!
for j in range(pos, i+1):
self._lookupField[j] = field_index
pos = i # figure out field for 1st editable space:
while i <= len(self._mask):
## dbg('searching: outer field loop: i = ', i)
if self._isMaskChar(i):
## dbg('1st char is mask char; recording edit_start=', i)
edit_start = i
# Skip to end of editable part of current field:
while i < len(self._mask) and self._isMaskChar(i):
self._lookupField[i] = field_index
i += 1
## dbg('edit_end =', i)
edit_end = i
self._lookupField[i] = field_index
## dbg('self._fields.has_key(%d)?' % field_index, self._fields.has_key(field_index))
if not self._fields.has_key(field_index):
kwargs = Field.valid_params.copy()
kwargs['index'] = field_index
kwargs['extent'] = (edit_start, edit_end)
kwargs['mask'] = self._mask[edit_start:edit_end]
self._fields[field_index] = Field(**kwargs)
else:
self._fields[field_index]._SetParameters(
index=field_index,
extent=(edit_start, edit_end),
mask=self._mask[edit_start:edit_end])
pos = i
i = self._findNextEntry(pos, adjustInsert=False) # go to next field:
if i > pos:
for j in range(pos, i+1):
self._lookupField[j] = field_index
if i >= len(self._mask):
break # if past end, we're done
else:
field_index += 1
## dbg('next field:', field_index)
indices = self._fields.keys()
indices.sort()
self._field_indices = indices[1:]
## dbg('lookupField map:', indent=1)
## for i in range(len(self._mask)):
## dbg('pos %d:' % i, self._lookupField[i])
## dbg(indent=0)
# Verify that all field indices specified are valid for mask:
for index in self._fields.keys():
if index not in [-1] + self._lookupField.values():
raise IndexError('field %d is not a valid field for mask "%s"' % (index, self._mask))
def _calcTemplate(self, reset_fillchar, reset_default):
"""
Subroutine for processing current fillchars and default values for
whole control and individual fields, constructing the resulting
overall template, and adjusting the current value as necessary.
"""
default_set = False
if self._ctrl_constraints._defaultValue:
default_set = True
else:
for field in self._fields.values():
if field._defaultValue and not reset_default:
default_set = True
dbg('default set?', default_set)
# Determine overall new template for control, and keep track of previous
# values, so that current control value can be modified as appropriate:
if self.controlInitialized: curvalue = list(self._GetValue())
else: curvalue = None
if hasattr(self, '_fillChar'): old_fillchars = self._fillChar
else: old_fillchars = None
if hasattr(self, '_template'): old_template = self._template
else: old_template = None
self._template = ""
self._fillChar = {}
reset_value = False
for field in self._fields.values():
field._template = ""
for pos in range(len(self._mask)):
## dbg('pos:', pos)
field = self._FindField(pos)
## dbg('field:', field._index)
start, end = field._extent
if pos == 0 and self._signOk:
self._template = ' ' # always make 1st 1st position blank, regardless of fillchar
elif self._isFloat and pos == self._decimalpos:
self._template += self._decimalChar
elif self._isMaskChar(pos):
if field._fillChar != self._ctrl_constraints._fillChar and not reset_fillchar:
fillChar = field._fillChar
else:
fillChar = self._ctrl_constraints._fillChar
self._fillChar[pos] = fillChar
# Replace any current old fillchar with new one in current value;
# if action required, set reset_value flag so we can take that action
# after we're all done
if self.controlInitialized and old_fillchars and old_fillchars.has_key(pos) and curvalue:
if curvalue[pos] == old_fillchars[pos] and old_fillchars[pos] != fillChar:
reset_value = True
curvalue[pos] = fillChar
if not field._defaultValue and not self._ctrl_constraints._defaultValue:
## dbg('no default value')
self._template += fillChar
field._template += fillChar
elif field._defaultValue and not reset_default:
## dbg('len(field._defaultValue):', len(field._defaultValue))
## dbg('pos-start:', pos-start)
if len(field._defaultValue) > pos-start:
## dbg('field._defaultValue[pos-start]: "%s"' % field._defaultValue[pos-start])
self._template += field._defaultValue[pos-start]
field._template += field._defaultValue[pos-start]
else:
## dbg('field default not long enough; using fillChar')
self._template += fillChar
field._template += fillChar
else:
if len(self._ctrl_constraints._defaultValue) > pos:
## dbg('using control default')
self._template += self._ctrl_constraints._defaultValue[pos]
field._template += self._ctrl_constraints._defaultValue[pos]
else:
## dbg('ctrl default not long enough; using fillChar')
self._template += fillChar
field._template += fillChar
## dbg('field[%d]._template now "%s"' % (field._index, field._template))
## dbg('self._template now "%s"' % self._template)
else:
self._template += self._mask[pos]
self._fields[-1]._template = self._template # (for consistency)
if curvalue: # had an old value, put new one back together
newvalue = string.join(curvalue, "")
else:
newvalue = None
if default_set:
self._defaultValue = self._template
dbg('self._defaultValue:', self._defaultValue)
if not self.IsEmpty(self._defaultValue) and not self.IsValid(self._defaultValue):
## dbg(indent=0)
raise ValueError('Default value of "%s" is not a valid value for control "%s"' % (self._defaultValue, self.name))
# if no fillchar change, but old value == old template, replace it:
if newvalue == old_template:
newvalue = self._template
reset_value = True
else:
self._defaultValue = None
if reset_value:
dbg('resetting value to: "%s"' % newvalue)
pos = self._GetInsertionPoint()
sel_start, sel_to = self._GetSelection()
self._SetValue(newvalue)
self._SetInsertionPoint(pos)
self._SetSelection(sel_start, sel_to)
def _propagateConstraints(self, **reset_args):
"""
Subroutine for propagating changes to control-level constraints and
formatting to the individual fields as appropriate.
"""
parent_codes = self._ctrl_constraints._formatcodes
parent_includes = self._ctrl_constraints._includeChars
parent_excludes = self._ctrl_constraints._excludeChars
for i in self._field_indices:
field = self._fields[i]
inherit_args = {}
if len(self._field_indices) == 1:
inherit_args['formatcodes'] = parent_codes
inherit_args['includeChars'] = parent_includes
inherit_args['excludeChars'] = parent_excludes
else:
field_codes = current_codes = field._GetParameter('formatcodes')
for c in parent_codes:
if c not in field_codes: field_codes += c
if field_codes != current_codes:
inherit_args['formatcodes'] = field_codes
include_chars = current_includes = field._GetParameter('includeChars')
for c in parent_includes:
if not c in include_chars: include_chars += c
if include_chars != current_includes:
inherit_args['includeChars'] = include_chars
exclude_chars = current_excludes = field._GetParameter('excludeChars')
for c in parent_excludes:
if not c in exclude_chars: exclude_chars += c
if exclude_chars != current_excludes:
inherit_args['excludeChars'] = exclude_chars
if reset_args.has_key('defaultValue') and reset_args['defaultValue']:
inherit_args['defaultValue'] = "" # (reset for field)
for param in Field.propagating_params:
## dbg('reset_args.has_key(%s)?' % param, reset_args.has_key(param))
## dbg('reset_args.has_key(%(param)s) and reset_args[%(param)s]?' % locals(), reset_args.has_key(param) and reset_args[param])
if reset_args.has_key(param):
inherit_args[param] = self.GetCtrlParameter(param)
## dbg('inherit_args[%s]' % param, inherit_args[param])
if inherit_args:
field._SetParameters(**inherit_args)
field._ValidateParameters(**inherit_args)
def _validateChoices(self):
"""
Subroutine that validates that all choices for given fields are at
least of the necessary length, and that they all would be valid pastes
if pasted into their respective fields.
"""
for field in self._fields.values():
if field._choices:
index = field._index
if len(self._field_indices) == 1 and index == 0 and field._choices == self._ctrl_constraints._choices:
dbg('skipping (duplicate) choice validation of field 0')
continue
## dbg('checking for choices for field', field._index)
start, end = field._extent
field_length = end - start
## dbg('start, end, length:', start, end, field_length)
for choice in field._choices:
## dbg('testing "%s"' % choice)
valid_paste, ignore, replace_to = self._validatePaste(choice, start, end)
if not valid_paste:
## dbg(indent=0)
raise ValueError('"%s" could not be entered into field %d of control "%s"' % (choice, index, self.name))
elif replace_to > end:
## dbg(indent=0)
raise ValueError('"%s" will not fit into field %d of control "%s"' (choice, index, self.name))
## dbg(choice, 'valid in field', index)
def _configure(self, mask, **reset_args):
"""
This function sets flags for automatic styling options. It is
called whenever a control or field-level parameter is set/changed.
This routine does the bulk of the interdependent parameter processing, determining
the field extents of the mask if changed, resetting parameters as appropriate,
determining the overall template value for the control, etc.
reset_args is supplied if called from control's .SetCtrlParameters()
routine, and indicates which if any parameters which can be
overridden by individual fields have been reset by request for the
whole control.
"""
dbg(suspend=1)
dbg('MaskedEditMixin::_configure("%s")' % mask, indent=1)
# Preprocess specified mask to expand {n} syntax, handle escaped
# mask characters, etc and build the resulting positionally keyed
# dictionary for which positions are mask vs. template characters:
self._mask, self.ismasked = self._processMask(mask)
self._masklength = len(self._mask)
## dbg('processed mask:', self._mask)
# Preserve original mask specified, for subsequent reprocessing
# if parameters change.
dbg('mask: "%s"' % self._mask, 'previous mask: "%s"' % self._previous_mask)
self._previous_mask = mask # save unexpanded mask for next time
# Set expanded mask and extent of field -1 to width of entire control:
self._ctrl_constraints._SetParameters(mask = self._mask, extent=(0,self._masklength))
# Go parse mask to determine where each field is, construct field
# instances as necessary, configure them with those extents, and
# build lookup table mapping each position for control to its corresponding
# field.
## dbg('calculating field extents')
self._calcFieldExtents()
# Go process defaultValues and fillchars to construct the overall
# template, and adjust the current value as necessary:
reset_fillchar = reset_args.has_key('fillChar') and reset_args['fillChar']
reset_default = reset_args.has_key('defaultValue') and reset_args['defaultValue']
## dbg('calculating template')
self._calcTemplate(reset_fillchar, reset_default)
# Propagate control-level formatting and character constraints to each
# field if they don't already have them; if only one field, propagate
# control-level validation constraints to field as well:
## dbg('propagating constraints')
self._propagateConstraints(**reset_args)
if self._isFloat and self._fields[0]._groupChar == self._decimalChar:
raise AttributeError('groupChar (%s) and decimalChar (%s) must be distinct.' %
(self._fields[0]._groupChar, self._decimalChar) )
## dbg('fields:', indent=1)
## for i in [-1] + self._field_indices:
## dbg('field %d:' % i, self._fields[i].__dict__)
## dbg(indent=0)
# Set up special parameters for numeric control, if appropriate:
if self._signOk:
self._signpos = 0 # assume it starts here, but it will move around on floats
signkeys = ['-', '+', ' ']
if self._useParens:
signkeys += ['(', ')']
for key in signkeys:
keycode = ord(key)
if not self._keyhandlers.has_key(keycode):
self._SetKeyHandler(key, self._OnChangeSign)
if self._isFloat or self._isInt:
if self.controlInitialized:
value = self._GetValue()
## dbg('value: "%s"' % value, 'len(value):', len(value),
## 'len(self._ctrl_constraints._mask):',len(self._ctrl_constraints._mask))
if len(value) < len(self._ctrl_constraints._mask):
newvalue = value
if self._useParens and len(newvalue) < len(self._ctrl_constraints._mask) and newvalue.find('(') == -1:
newvalue += ' '
if self._signOk and len(newvalue) < len(self._ctrl_constraints._mask) and newvalue.find(')') == -1:
newvalue = ' ' + newvalue
if len(newvalue) < len(self._ctrl_constraints._mask):
if self._ctrl_constraints._alignRight:
newvalue = newvalue.rjust(len(self._ctrl_constraints._mask))
else:
newvalue = newvalue.ljust(len(self._ctrl_constraints._mask))
dbg('old value: "%s"' % value)
dbg('new value: "%s"' % newvalue)
try:
self._SetValue(newvalue)
except Exception, e:
dbg('exception raised:', e, 'resetting to initial value')
self._SetInitialValue()
elif len(value) > len(self._ctrl_constraints._mask):
newvalue = value
if not self._useParens and newvalue[-1] == ' ':
newvalue = newvalue[:-1]
if not self._signOk and len(newvalue) > len(self._ctrl_constraints._mask):
newvalue = newvalue[1:]
if not self._signOk:
newvalue, signpos, right_signpos = self._getSignedValue(newvalue)
dbg('old value: "%s"' % value)
dbg('new value: "%s"' % newvalue)
try:
self._SetValue(newvalue)
except Exception, e:
dbg('exception raised:', e, 'resetting to initial value')
self._SetInitialValue()
elif not self._signOk and ('(' in value or '-' in value):
newvalue, signpos, right_signpos = self._getSignedValue(value)
dbg('old value: "%s"' % value)
dbg('new value: "%s"' % newvalue)
try:
self._SetValue(newvalue)
except e:
dbg('exception raised:', e, 'resetting to initial value')
self._SetInitialValue()
# Replace up/down arrow default handling:
# make down act like tab, up act like shift-tab:
## dbg('Registering numeric navigation and control handlers (if not already set)')
if not self._keyhandlers.has_key(wx.WXK_DOWN):
self._SetKeycodeHandler(wx.WXK_DOWN, self._OnChangeField)
if not self._keyhandlers.has_key(wx.WXK_UP):
self._SetKeycodeHandler(wx.WXK_UP, self._OnUpNumeric) # (adds "shift" to up arrow, and calls _OnChangeField)
# On ., truncate contents right of cursor to decimal point (if any)
# leaves cusor after decimal point if floating point, otherwise at 0.
if not self._keyhandlers.has_key(ord(self._decimalChar)):
self._SetKeyHandler(self._decimalChar, self._OnDecimalPoint)
if not self._keyhandlers.has_key(ord(self._shiftDecimalChar)):
self._SetKeyHandler(self._shiftDecimalChar, self._OnChangeField) # (Shift-'.' == '>' on US keyboards)
# Allow selective insert of groupchar in numbers:
if not self._keyhandlers.has_key(ord(self._fields[0]._groupChar)):
self._SetKeyHandler(self._fields[0]._groupChar, self._OnGroupChar)
dbg(indent=0, suspend=0)
def _SetInitialValue(self, value=""):
"""
fills the control with the generated or supplied default value.
It will also set/reset the font if necessary and apply
formatting to the control at this time.
"""
dbg('MaskedEditMixin::_SetInitialValue("%s")' % value, indent=1)
if not value:
self._prevValue = self._curValue = self._template
# don't apply external validation rules in this case, as template may
# not coincide with "legal" value...
try:
self._SetValue(self._curValue) # note the use of "raw" ._SetValue()...
except Exception, e:
dbg('exception thrown:', e, indent=0)
raise
else:
# Otherwise apply validation as appropriate to passed value:
## dbg('value = "%s", length:' % value, len(value))
self._prevValue = self._curValue = value
try:
self.SetValue(value) # use public (validating) .SetValue()
except Exception, e:
dbg('exception thrown:', e, indent=0)
raise
# Set value/type-specific formatting
self._applyFormatting()
dbg(indent=0)
def _calcSize(self, size=None):
""" Calculate automatic size if allowed; must be called after the base control is instantiated"""
## dbg('MaskedEditMixin::_calcSize', indent=1)
cont = (size is None or size == wx.DefaultSize)
if cont and self._autofit:
sizing_text = 'M' * self._masklength
if wx.Platform != "__WXMSW__": # give it a little extra space
sizing_text += 'M'
if wx.Platform == "__WXMAC__": # give it even a little more...
sizing_text += 'M'
## dbg('len(sizing_text):', len(sizing_text), 'sizing_text: "%s"' % sizing_text)
w, h = self.GetTextExtent(sizing_text)
size = (w+4, self.GetClientSize().height)
## dbg('size:', size, indent=0)
return size
def _setFont(self):
""" Set the control's font typeface -- pass the font name as str."""
## dbg('MaskedEditMixin::_setFont', indent=1)
if not self._useFixedWidthFont:
self._font = wx.SystemSettings_GetFont(wx.SYS_DEFAULT_GUI_FONT)
else:
font = self.GetFont() # get size, weight, etc from current font
# Set to teletype font (guaranteed to be mappable to all wxWindows
# platforms:
self._font = wx.Font( font.GetPointSize(), wx.TELETYPE, font.GetStyle(),
font.GetWeight(), font.GetUnderlined())
## dbg('font string: "%s"' % font.GetNativeFontInfo().ToString())
self.SetFont(self._font)
## dbg(indent=0)
def _OnTextChange(self, event):
"""
Handler for EVT_TEXT event.
self._Change() is provided for subclasses, and may return False to
skip this method logic. This function returns True if the event
detected was a legitimate event, or False if it was a "bogus"
EVT_TEXT event. (NOTE: There is currently an issue with calling
.SetValue from within the EVT_CHAR handler that causes duplicate
EVT_TEXT events for the same change.)
"""
newvalue = self._GetValue()
dbg('MaskedEditMixin::_OnTextChange: value: "%s"' % newvalue, indent=1)
bValid = False
if self._ignoreChange: # ie. if an "intermediate text change event"
dbg(indent=0)
return bValid
##! WS: For some inexplicable reason, every wxTextCtrl.SetValue
## call is generating two (2) EVT_TEXT events.
## This is the only mechanism I can find to mask this problem:
if newvalue == self._curValue:
dbg('ignoring bogus text change event', indent=0)
else:
dbg('curvalue: "%s", newvalue: "%s"' % (self._curValue, newvalue))
if self._Change():
if self._signOk and self._isNeg and newvalue.find('-') == -1 and newvalue.find('(') == -1:
dbg('clearing self._isNeg')
self._isNeg = False
text, self._signpos, self._right_signpos = self._getSignedValue()
self._CheckValid() # Recolor control as appropriate
dbg('calling event.Skip()')
event.Skip()
bValid = True
self._prevValue = self._curValue # save for undo
self._curValue = newvalue # Save last seen value for next iteration
dbg(indent=0)
return bValid
def _OnKeyDown(self, event):
"""
This function allows the control to capture Ctrl-events like Ctrl-tab,
that are not normally seen by the "cooked" EVT_CHAR routine.
"""
# Get keypress value, adjusted by control options (e.g. convert to upper etc)
key = event.GetKeyCode()
if key in self._nav and event.ControlDown():
# then this is the only place we will likely see these events;
# process them now:
dbg('MaskedEditMixin::OnKeyDown: calling _OnChar')
self._OnChar(event)
return
# else allow regular EVT_CHAR key processing
event.Skip()
def _OnChar(self, event):
"""
This is the engine of wxMaskedEdit controls. It examines each keystroke,
decides if it's allowed, where it should go or what action to take.
"""
dbg('MaskedEditMixin::_OnChar', indent=1)
# Get keypress value, adjusted by control options (e.g. convert to upper etc)
key = event.GetKeyCode()
orig_pos = self._GetInsertionPoint()
orig_value = self._GetValue()
dbg('keycode = ', key)
dbg('current pos = ', orig_pos)
dbg('current selection = ', self._GetSelection())
if not self._Keypress(key):
dbg(indent=0)
return
# If no format string for this control, or the control is marked as "read-only",
# skip the rest of the special processing, and just "do the standard thing:"
if not self._mask or not self._IsEditable():
event.Skip()
dbg(indent=0)
return
# Process navigation and control keys first, with
# position/selection unadulterated:
if key in self._nav + self._control:
if self._keyhandlers.has_key(key):
keep_processing = self._keyhandlers[key](event)
if self._GetValue() != orig_value:
self.modified = True
if not keep_processing:
dbg(indent=0)
return
self._applyFormatting()
dbg(indent=0)
return
# Else... adjust the position as necessary for next input key,
# and determine resulting selection:
pos = self._adjustPos( orig_pos, key ) ## get insertion position, adjusted as needed
sel_start, sel_to = self._GetSelection() ## check for a range of selected text
dbg("pos, sel_start, sel_to:", pos, sel_start, sel_to)
keep_processing = True
# Capture user past end of format field
if pos > len(self.maskdict):
dbg("field length exceeded:",pos)
keep_processing = False
if keep_processing:
if self._isMaskChar(pos): ## Get string of allowed characters for validation
okchars = self._getAllowedChars(pos)
else:
dbg('Not a valid position: pos = ', pos,"chars=",maskchars)
okchars = ""
key = self._adjustKey(pos, key) # apply formatting constraints to key:
if self._keyhandlers.has_key(key):
# there's an override for default behavior; use override function instead
dbg('using supplied key handler:', self._keyhandlers[key])
keep_processing = self._keyhandlers[key](event)
if self._GetValue() != orig_value:
self.modified = True
if not keep_processing:
dbg(indent=0)
return
# else skip default processing, but do final formatting
if key < wx.WXK_SPACE or key > 255:
dbg('key < WXK_SPACE or key > 255')
event.Skip() # non alphanumeric
keep_processing = False
else:
field = self._FindField(pos)
dbg("key ='%s'" % chr(key))
if chr(key) == ' ':
dbg('okSpaces?', field._okSpaces)
if chr(key) in field._excludeChars + self._ctrl_constraints._excludeChars:
keep_processing = False
if keep_processing and self._isCharAllowed( chr(key), pos, checkRegex = True ):
dbg("key allowed by mask")
# insert key into candidate new value, but don't change control yet:
oldstr = self._GetValue()
newstr, newpos, new_select_to, match_field, match_index = self._insertKey(
chr(key), pos, sel_start, sel_to, self._GetValue(), allowAutoSelect = True)
dbg("str with '%s' inserted:" % chr(key), '"%s"' % newstr)
if self._ctrl_constraints._validRequired and not self.IsValid(newstr):
dbg('not valid; checking to see if adjusted string is:')
keep_processing = False
if self._isFloat and newstr != self._template:
newstr = self._adjustFloat(newstr)
dbg('adjusted str:', newstr)
if self.IsValid(newstr):
dbg("it is!")
keep_processing = True
wx.CallAfter(self._SetInsertionPoint, self._decimalpos)
if not keep_processing:
dbg("key disallowed by validation")
if not wx.Validator_IsSilent() and orig_pos == pos:
wx.Bell()
if keep_processing:
unadjusted = newstr
# special case: adjust date value as necessary:
if self._isDate and newstr != self._template:
newstr = self._adjustDate(newstr)
dbg('adjusted newstr:', newstr)
if newstr != orig_value:
self.modified = True
wx.CallAfter(self._SetValue, newstr)
# Adjust insertion point on date if just entered 2 digit year, and there are now 4 digits:
if not self.IsDefault() and self._isDate and self._4digityear:
year2dig = self._dateExtent - 2
if pos == year2dig and unadjusted[year2dig] != newstr[year2dig]:
newpos = pos+2
wx.CallAfter(self._SetInsertionPoint, newpos)
if match_field is not None:
dbg('matched field')
self._OnAutoSelect(match_field, match_index)
if new_select_to != newpos:
dbg('queuing selection: (%d, %d)' % (newpos, new_select_to))
wx.CallAfter(self._SetSelection, newpos, new_select_to)
else:
newfield = self._FindField(newpos)
if newfield != field and newfield._selectOnFieldEntry:
dbg('queuing selection: (%d, %d)' % (newfield._extent[0], newfield._extent[1]))
wx.CallAfter(self._SetSelection, newfield._extent[0], newfield._extent[1])
keep_processing = False
elif keep_processing:
dbg('char not allowed')
keep_processing = False
if (not wx.Validator_IsSilent()) and orig_pos == pos:
wx.Bell()
self._applyFormatting()
# Move to next insertion point
if keep_processing and key not in self._nav:
pos = self._GetInsertionPoint()
next_entry = self._findNextEntry( pos )
if pos != next_entry:
dbg("moving from %(pos)d to next valid entry: %(next_entry)d" % locals())
wx.CallAfter(self._SetInsertionPoint, next_entry )
if self._isTemplateChar(pos):
self._AdjustField(pos)
dbg(indent=0)
def _FindFieldExtent(self, pos=None, getslice=False, value=None):
""" returns editable extent of field corresponding to
position pos, and, optionally, the contents of that field
in the control or the value specified.
Template chars are bound to the preceding field.
For masks beginning with template chars, these chars are ignored
when calculating the current field.
Eg: with template (###) ###-####,
>>> self._FindFieldExtent(pos=0)
1, 4
>>> self._FindFieldExtent(pos=1)
1, 4
>>> self._FindFieldExtent(pos=5)
1, 4
>>> self._FindFieldExtent(pos=6)
6, 9
>>> self._FindFieldExtent(pos=10)
10, 14
etc.
"""
dbg('MaskedEditMixin::_FindFieldExtent(pos=%s, getslice=%s)' % (
str(pos), str(getslice)) ,indent=1)
field = self._FindField(pos)
if not field:
if getslice:
return None, None, ""
else:
return None, None
edit_start, edit_end = field._extent
if getslice:
if value is None: value = self._GetValue()
slice = value[edit_start:edit_end]
dbg('edit_start:', edit_start, 'edit_end:', edit_end, 'slice: "%s"' % slice)
dbg(indent=0)
return edit_start, edit_end, slice
else:
dbg('edit_start:', edit_start, 'edit_end:', edit_end)
dbg(indent=0)
return edit_start, edit_end
def _FindField(self, pos=None):
"""
Returns the field instance in which pos resides.
Template chars are bound to the preceding field.
For masks beginning with template chars, these chars are ignored
when calculating the current field.
"""
## dbg('MaskedEditMixin::_FindField(pos=%s)' % str(pos) ,indent=1)
if pos is None: pos = self._GetInsertionPoint()
elif pos < 0 or pos > self._masklength:
raise IndexError('position %s out of range of control' % str(pos))
if len(self._fields) == 0:
dbg(indent=0)
return None
# else...
## dbg(indent=0)
return self._fields[self._lookupField[pos]]
def ClearValue(self):
""" Blanks the current control value by replacing it with the default value."""
dbg("MaskedEditMixin::ClearValue - value reset to default value (template)")
self._SetValue( self._template )
self._SetInsertionPoint(0)
self.Refresh()
def _baseCtrlEventHandler(self, event):
"""
This function is used whenever a key should be handled by the base control.
"""
event.Skip()
return False
def _OnUpNumeric(self, event):
"""
Makes up-arrow act like shift-tab should; ie. take you to start of
previous field.
"""
dbg('MaskedEditMixin::_OnUpNumeric', indent=1)
event.m_shiftDown = 1
dbg('event.ShiftDown()?', event.ShiftDown())
self._OnChangeField(event)
dbg(indent=0)
def _OnArrow(self, event):
"""
Used in response to left/right navigation keys; makes these actions skip
over mask template chars.
"""
dbg("MaskedEditMixin::_OnArrow", indent=1)
pos = self._GetInsertionPoint()
keycode = event.GetKeyCode()
sel_start, sel_to = self._GetSelection()
entry_end = self._goEnd(getPosOnly=True)
if keycode in (wx.WXK_RIGHT, wx.WXK_DOWN):
if( ( not self._isTemplateChar(pos) and pos+1 > entry_end)
or ( self._isTemplateChar(pos) and pos >= entry_end) ):
dbg("can't advance", indent=0)
return False
elif self._isTemplateChar(pos):
self._AdjustField(pos)
elif keycode in (wx.WXK_LEFT,wx.WXK_UP) and sel_start == sel_to and pos > 0 and self._isTemplateChar(pos-1):
dbg('adjusting field')
self._AdjustField(pos)
# treat as shifted up/down arrows as tab/reverse tab:
if event.ShiftDown() and keycode in (wx.WXK_UP, wx.WXK_DOWN):
# remove "shifting" and treat as (forward) tab:
event.m_shiftDown = False
keep_processing = self._OnChangeField(event)
elif self._FindField(pos)._selectOnFieldEntry:
if( keycode in (wx.WXK_UP, wx.WXK_LEFT)
and sel_start != 0
and self._isTemplateChar(sel_start-1)
and sel_start != self._masklength
and not self._signOk and not self._useParens):
# call _OnChangeField to handle "ctrl-shifted event"
# (which moves to previous field and selects it.)
event.m_shiftDown = True
event.m_ControlDown = True
keep_processing = self._OnChangeField(event)
elif( keycode in (wx.WXK_DOWN, wx.WXK_RIGHT)
and sel_to != self._masklength
and self._isTemplateChar(sel_to)):
# when changing field to the right, ensure don't accidentally go left instead
event.m_shiftDown = False
keep_processing = self._OnChangeField(event)
else:
# treat arrows as normal, allowing selection
# as appropriate:
dbg('using base ctrl event processing')
event.Skip()
else:
if( (sel_to == self._fields[0]._extent[0] and keycode == wx.WXK_LEFT)
or (sel_to == self._masklength and keycode == wx.WXK_RIGHT) ):
if not wx.Validator_IsSilent():
wx.Bell()
else:
# treat arrows as normal, allowing selection
# as appropriate:
dbg('using base event processing')
event.Skip()
keep_processing = False
dbg(indent=0)
return keep_processing
def _OnCtrl_S(self, event):
""" Default Ctrl-S handler; prints value information if demo enabled. """
dbg("MaskedEditMixin::_OnCtrl_S")
if self._demo:
print 'MaskedEditMixin.GetValue() = "%s"\nMaskedEditMixin.GetPlainValue() = "%s"' % (self.GetValue(), self.GetPlainValue())
print "Valid? => " + str(self.IsValid())
print "Current field, start, end, value =", str( self._FindFieldExtent(getslice=True))
return False
def _OnCtrl_X(self, event=None):
""" Handles ctrl-x keypress in control and Cut operation on context menu.
Should return False to skip other processing. """
dbg("MaskedEditMixin::_OnCtrl_X", indent=1)
self.Cut()
dbg(indent=0)
return False
def _OnCtrl_C(self, event=None):
""" Handles ctrl-C keypress in control and Copy operation on context menu.
Uses base control handling. Should return False to skip other processing."""
self.Copy()
return False
def _OnCtrl_V(self, event=None):
""" Handles ctrl-V keypress in control and Paste operation on context menu.
Should return False to skip other processing. """
dbg("MaskedEditMixin::_OnCtrl_V", indent=1)
self.Paste()
dbg(indent=0)
return False
def _OnCtrl_Z(self, event=None):
""" Handles ctrl-Z keypress in control and Undo operation on context menu.
Should return False to skip other processing. """
dbg("MaskedEditMixin::_OnCtrl_Z", indent=1)
self.Undo()
dbg(indent=0)
return False
def _OnCtrl_A(self,event=None):
""" Handles ctrl-a keypress in control. Should return False to skip other processing. """
end = self._goEnd(getPosOnly=True)
if not event or event.ShiftDown():
wx.CallAfter(self._SetInsertionPoint, 0)
wx.CallAfter(self._SetSelection, 0, self._masklength)
else:
wx.CallAfter(self._SetInsertionPoint, 0)
wx.CallAfter(self._SetSelection, 0, end)
return False
def _OnErase(self, event=None):
""" Handles backspace and delete keypress in control. Should return False to skip other processing."""
dbg("MaskedEditMixin::_OnErase", indent=1)
sel_start, sel_to = self._GetSelection() ## check for a range of selected text
if event is None: # called as action routine from Cut() operation.
key = wx.WXK_DELETE
else:
key = event.GetKeyCode()
field = self._FindField(sel_to)
start, end = field._extent
value = self._GetValue()
oldstart = sel_start
# If trying to erase beyond "legal" bounds, disallow operation:
if( (sel_to == 0 and key == wx.WXK_BACK)
or (self._signOk and sel_to == 1 and value[0] == ' ' and key == wx.WXK_BACK)
or (sel_to == self._masklength and sel_start == sel_to and key == wx.WXK_DELETE and not field._insertRight)
or (self._signOk and self._useParens
and sel_start == sel_to
and sel_to == self._masklength - 1
and value[sel_to] == ' ' and key == wx.WXK_DELETE and not field._insertRight) ):
if not wx.Validator_IsSilent():
wx.Bell()
dbg(indent=0)
return False
if( field._insertRight # an insert-right field
and value[start:end] != self._template[start:end] # and field not empty
and sel_start >= start # and selection starts in field
and ((sel_to == sel_start # and no selection
and sel_to == end # and cursor at right edge
and key in (wx.WXK_BACK, wx.WXK_DELETE)) # and either delete or backspace key
or # or
(key == wx.WXK_BACK # backspacing
and (sel_to == end # and selection ends at right edge
or sel_to < end and field._allowInsert)) ) ): # or allow right insert at any point in field
dbg('delete left')
# if backspace but left of cursor is empty, adjust cursor right before deleting
while( key == wx.WXK_BACK
and sel_start == sel_to
and sel_start < end
and value[start:sel_start] == self._template[start:sel_start]):
sel_start += 1
sel_to = sel_start
dbg('sel_start, start:', sel_start, start)
if sel_start == sel_to:
keep = sel_start -1
else:
keep = sel_start
newfield = value[start:keep] + value[sel_to:end]
# handle sign char moving from outside field into the field:
move_sign_into_field = False
if not field._padZero and self._signOk and self._isNeg and value[0] in ('-', '('):
signchar = value[0]
newfield = signchar + newfield
move_sign_into_field = True
dbg('cut newfield: "%s"' % newfield)
# handle what should fill in from the left:
left = ""
for i in range(start, end - len(newfield)):
if field._padZero:
left += '0'
elif( self._signOk and self._isNeg and i == 1
and ((self._useParens and newfield.find('(') == -1)
or (not self._useParens and newfield.find('-') == -1)) ):
left += ' '
else:
left += self._template[i] # this can produce strange results in combination with default values...
newfield = left + newfield
dbg('filled newfield: "%s"' % newfield)
newstr = value[:start] + newfield + value[end:]
# (handle sign located in "mask position" in front of field prior to delete)
if move_sign_into_field:
newstr = ' ' + newstr[1:]
pos = sel_to
else:
# handle erasure of (left) sign, moving selection accordingly...
if self._signOk and sel_start == 0:
newstr = value = ' ' + value[1:]
sel_start += 1
if field._allowInsert and sel_start >= start:
# selection (if any) falls within current insert-capable field:
select_len = sel_to - sel_start
# determine where cursor should end up:
if key == wx.WXK_BACK:
if select_len == 0:
newpos = sel_start -1
else:
newpos = sel_start
erase_to = sel_to
else:
newpos = sel_start
if sel_to == sel_start:
erase_to = sel_to + 1
else:
erase_to = sel_to
if self._isTemplateChar(newpos) and select_len == 0:
if self._signOk:
if value[newpos] in ('(', '-'):
newpos += 1 # don't move cusor
newstr = ' ' + value[newpos:]
elif value[newpos] == ')':
# erase right sign, but don't move cursor; (matching left sign handled later)
newstr = value[:newpos] + ' '
else:
# no deletion; just move cursor
newstr = value
else:
# no deletion; just move cursor
newstr = value
else:
if erase_to > end: erase_to = end
erase_len = erase_to - newpos
left = value[start:newpos]
dbg("retained ='%s'" % value[erase_to:end], 'sel_to:', sel_to, "fill: '%s'" % self._template[end - erase_len:end])
right = value[erase_to:end] + self._template[end-erase_len:end]
pos_adjust = 0
if field._alignRight:
rstripped = right.rstrip()
if rstripped != right:
pos_adjust = len(right) - len(rstripped)
right = rstripped
if not field._insertRight and value[-1] == ')' and end == self._masklength - 1:
# need to shift ) into the field:
right = right[:-1] + ')'
value = value[:-1] + ' '
newfield = left+right
if pos_adjust:
newfield = newfield.rjust(end-start)
newpos += pos_adjust
dbg("left='%s', right ='%s', newfield='%s'" %(left, right, newfield))
newstr = value[:start] + newfield + value[end:]
pos = newpos
else:
if sel_start == sel_to:
dbg("current sel_start, sel_to:", sel_start, sel_to)
if key == wx.WXK_BACK:
sel_start, sel_to = sel_to-1, sel_to-1
dbg("new sel_start, sel_to:", sel_start, sel_to)
if field._padZero and not value[start:sel_to].replace('0', '').replace(' ','').replace(field._fillChar, ''):
# preceding chars (if any) are zeros, blanks or fillchar; new char should be 0:
newchar = '0'
else:
newchar = self._template[sel_to] ## get an original template character to "clear" the current char
dbg('value = "%s"' % value, 'value[%d] = "%s"' %(sel_start, value[sel_start]))
if self._isTemplateChar(sel_to):
if sel_to == 0 and self._signOk and value[sel_to] == '-': # erasing "template" sign char
newstr = ' ' + value[1:]
sel_to += 1
elif self._signOk and self._useParens and (value[sel_to] == ')' or value[sel_to] == '('):
# allow "change sign" by removing both parens:
newstr = value[:self._signpos] + ' ' + value[self._signpos+1:-1] + ' '
else:
newstr = value
newpos = sel_to
else:
if field._insertRight and sel_start == sel_to:
# force non-insert-right behavior, by selecting char to be replaced:
sel_to += 1
newstr, ignore = self._insertKey(newchar, sel_start, sel_start, sel_to, value)
else:
# selection made
newstr = self._eraseSelection(value, sel_start, sel_to)
pos = sel_start # put cursor back at beginning of selection
if self._signOk and self._useParens:
# account for resultant unbalanced parentheses:
left_signpos = newstr.find('(')
right_signpos = newstr.find(')')
if left_signpos == -1 and right_signpos != -1:
# erased left-sign marker; get rid of right sign marker:
newstr = newstr[:right_signpos] + ' ' + newstr[right_signpos+1:]
elif left_signpos != -1 and right_signpos == -1:
# erased right-sign marker; get rid of left-sign marker:
newstr = newstr[:left_signpos] + ' ' + newstr[left_signpos+1:]
dbg("oldstr:'%s'" % value, 'oldpos:', oldstart)
dbg("newstr:'%s'" % newstr, 'pos:', pos)
# if erasure results in an invalid field, disallow it:
dbg('field._validRequired?', field._validRequired)
dbg('field.IsValid("%s")?' % newstr[start:end], field.IsValid(newstr[start:end]))
if field._validRequired and not field.IsValid(newstr[start:end]):
if not wx.Validator_IsSilent():
wx.Bell()
dbg(indent=0)
return False
# if erasure results in an invalid value, disallow it:
if self._ctrl_constraints._validRequired and not self.IsValid(newstr):
if not wx.Validator_IsSilent():
wx.Bell()
dbg(indent=0)
return False
dbg('setting value (later) to', newstr)
wx.CallAfter(self._SetValue, newstr)
dbg('setting insertion point (later) to', pos)
wx.CallAfter(self._SetInsertionPoint, pos)
dbg(indent=0)
return False
def _OnEnd(self,event):
""" Handles End keypress in control. Should return False to skip other processing. """
dbg("MaskedEditMixin::_OnEnd", indent=1)
pos = self._adjustPos(self._GetInsertionPoint(), event.GetKeyCode())
if not event.ControlDown():
end = self._masklength # go to end of control
if self._signOk and self._useParens:
end = end - 1 # account for reserved char at end
else:
end_of_input = self._goEnd(getPosOnly=True)
sel_start, sel_to = self._GetSelection()
if sel_to < pos: sel_to = pos
field = self._FindField(sel_to)
field_end = self._FindField(end_of_input)
# pick different end point if either:
# - cursor not in same field
# - or at or past last input already
# - or current selection = end of current field:
## dbg('field != field_end?', field != field_end)
## dbg('sel_to >= end_of_input?', sel_to >= end_of_input)
if field != field_end or sel_to >= end_of_input:
edit_start, edit_end = field._extent
## dbg('edit_end:', edit_end)
## dbg('sel_to:', sel_to)
## dbg('sel_to == edit_end?', sel_to == edit_end)
## dbg('field._index < self._field_indices[-1]?', field._index < self._field_indices[-1])
if sel_to == edit_end and field._index < self._field_indices[-1]:
edit_start, edit_end = self._FindFieldExtent(self._findNextEntry(edit_end)) # go to end of next field:
end = edit_end
dbg('end moved to', end)
elif sel_to == edit_end and field._index == self._field_indices[-1]:
# already at edit end of last field; select to end of control:
end = self._masklength
dbg('end moved to', end)
else:
end = edit_end # select to end of current field
dbg('end moved to ', end)
else:
# select to current end of input
end = end_of_input
## dbg('pos:', pos, 'end:', end)
if event.ShiftDown():
if not event.ControlDown():
dbg("shift-end; select to end of control")
else:
dbg("shift-ctrl-end; select to end of non-whitespace")
wx.CallAfter(self._SetInsertionPoint, pos)
wx.CallAfter(self._SetSelection, pos, end)
else:
if not event.ControlDown():
dbg('go to end of control:')
wx.CallAfter(self._SetInsertionPoint, end)
wx.CallAfter(self._SetSelection, end, end)
dbg(indent=0)
return False
def _OnReturn(self, event):
"""
Changes the event to look like a tab event, so we can then call
event.Skip() on it, and have the parent form "do the right thing."
"""
dbg('MaskedEditMixin::OnReturn')
event.m_keyCode = wx.WXK_TAB
event.Skip()
def _OnHome(self,event):
""" Handles Home keypress in control. Should return False to skip other processing."""
dbg("MaskedEditMixin::_OnHome", indent=1)
pos = self._adjustPos(self._GetInsertionPoint(), event.GetKeyCode())
sel_start, sel_to = self._GetSelection()
# There are 5 cases here:
# 1) shift: select from start of control to end of current
# selection.
if event.ShiftDown() and not event.ControlDown():
dbg("shift-home; select to start of control")
start = 0
end = sel_start
# 2) no shift, no control: move cursor to beginning of control.
elif not event.ControlDown():
dbg("home; move to start of control")
start = 0
end = 0
# 3) No shift, control: move cursor back to beginning of field; if
# there already, go to beginning of previous field.
# 4) shift, control, start of selection not at beginning of control:
# move sel_start back to start of field; if already there, go to
# start of previous field.
elif( event.ControlDown()
and (not event.ShiftDown()
or (event.ShiftDown() and sel_start > 0) ) ):
if len(self._field_indices) > 1:
field = self._FindField(sel_start)
start, ignore = field._extent
if sel_start == start and field._index != self._field_indices[0]: # go to start of previous field:
start, ignore = self._FindFieldExtent(sel_start-1)
elif sel_start == start:
start = 0 # go to literal beginning if edit start
# not at that point
end_of_field = True
else:
start = 0
if not event.ShiftDown():
dbg("ctrl-home; move to beginning of field")
end = start
else:
dbg("shift-ctrl-home; select to beginning of field")
end = sel_to
else:
# 5) shift, control, start of selection at beginning of control:
# unselect by moving sel_to backward to beginning of current field;
# if already there, move to start of previous field.
start = sel_start
if len(self._field_indices) > 1:
# find end of previous field:
field = self._FindField(sel_to)
if sel_to > start and field._index != self._field_indices[0]:
ignore, end = self._FindFieldExtent(field._extent[0]-1)
else:
end = start
end_of_field = True
else:
end = start
end_of_field = False
dbg("shift-ctrl-home; unselect to beginning of field")
dbg('queuing new sel_start, sel_to:', (start, end))
wx.CallAfter(self._SetInsertionPoint, start)
wx.CallAfter(self._SetSelection, start, end)
dbg(indent=0)
return False
def _OnChangeField(self, event):
"""
Primarily handles TAB events, but can be used for any key that
designer wants to change fields within a masked edit control.
NOTE: at the moment, although coded to handle shift-TAB and
control-shift-TAB, these events are not sent to the controls
by the framework.
"""
dbg('MaskedEditMixin::_OnChangeField', indent = 1)
# determine end of current field:
pos = self._GetInsertionPoint()
dbg('current pos:', pos)
sel_start, sel_to = self._GetSelection()
if self._masklength < 0: # no fields; process tab normally
self._AdjustField(pos)
if event.GetKeyCode() == wx.WXK_TAB:
dbg('tab to next ctrl')
event.Skip()
#else: do nothing
dbg(indent=0)
return False
if event.ShiftDown():
# "Go backward"
# NOTE: doesn't yet work with SHIFT-tab under wx; the control
# never sees this event! (But I've coded for it should it ever work,
# and it *does* work for '.' in IpAddrCtrl.)
field = self._FindField(pos)
index = field._index
field_start = field._extent[0]
if pos < field_start:
dbg('cursor before 1st field; cannot change to a previous field')
if not wx.Validator_IsSilent():
wx.Bell()
return False
if event.ControlDown():
dbg('queuing select to beginning of field:', field_start, pos)
wx.CallAfter(self._SetInsertionPoint, field_start)
wx.CallAfter(self._SetSelection, field_start, pos)
dbg(indent=0)
return False
elif index == 0:
# We're already in the 1st field; process shift-tab normally:
self._AdjustField(pos)
if event.GetKeyCode() == wx.WXK_TAB:
dbg('tab to previous ctrl')
event.Skip()
else:
dbg('position at beginning')
wx.CallAfter(self._SetInsertionPoint, field_start)
dbg(indent=0)
return False
else:
# find beginning of previous field:
begin_prev = self._FindField(field_start-1)._extent[0]
self._AdjustField(pos)
dbg('repositioning to', begin_prev)
wx.CallAfter(self._SetInsertionPoint, begin_prev)
if self._FindField(begin_prev)._selectOnFieldEntry:
edit_start, edit_end = self._FindFieldExtent(begin_prev)
dbg('queuing selection to (%d, %d)' % (edit_start, edit_end))
wx.CallAfter(self._SetInsertionPoint, edit_start)
wx.CallAfter(self._SetSelection, edit_start, edit_end)
dbg(indent=0)
return False
else:
# "Go forward"
field = self._FindField(sel_to)
field_start, field_end = field._extent
if event.ControlDown():
dbg('queuing select to end of field:', pos, field_end)
wx.CallAfter(self._SetInsertionPoint, pos)
wx.CallAfter(self._SetSelection, pos, field_end)
dbg(indent=0)
return False
else:
if pos < field_start:
dbg('cursor before 1st field; go to start of field')
wx.CallAfter(self._SetInsertionPoint, field_start)
if field._selectOnFieldEntry:
wx.CallAfter(self._SetSelection, field_start, field_end)
else:
wx.CallAfter(self._SetSelection, field_start, field_start)
return False
# else...
dbg('end of current field:', field_end)
dbg('go to next field')
if field_end == self._fields[self._field_indices[-1]]._extent[1]:
self._AdjustField(pos)
if event.GetKeyCode() == wx.WXK_TAB:
dbg('tab to next ctrl')
event.Skip()
else:
dbg('position at end')
wx.CallAfter(self._SetInsertionPoint, field_end)
dbg(indent=0)
return False
else:
# we have to find the start of the next field
next_pos = self._findNextEntry(field_end)
if next_pos == field_end:
dbg('already in last field')
self._AdjustField(pos)
if event.GetKeyCode() == wx.WXK_TAB:
dbg('tab to next ctrl')
event.Skip()
#else: do nothing
dbg(indent=0)
return False
else:
self._AdjustField( pos )
# move cursor to appropriate point in the next field and select as necessary:
field = self._FindField(next_pos)
edit_start, edit_end = field._extent
if field._selectOnFieldEntry:
dbg('move to ', next_pos)
wx.CallAfter(self._SetInsertionPoint, next_pos)
edit_start, edit_end = self._FindFieldExtent(next_pos)
dbg('queuing select', edit_start, edit_end)
wx.CallAfter(self._SetSelection, edit_start, edit_end)
else:
if field._insertRight:
next_pos = field._extent[1]
dbg('move to ', next_pos)
wx.CallAfter(self._SetInsertionPoint, next_pos)
dbg(indent=0)
return False
def _OnDecimalPoint(self, event):
dbg('MaskedEditMixin::_OnDecimalPoint', indent=1)
pos = self._adjustPos(self._GetInsertionPoint(), event.GetKeyCode())
if self._isFloat: ## handle float value, move to decimal place
dbg('key == Decimal tab; decimal pos:', self._decimalpos)
value = self._GetValue()
if pos < self._decimalpos:
clipped_text = value[0:pos] + self._decimalChar + value[self._decimalpos+1:]
dbg('value: "%s"' % self._GetValue(), "clipped_text:'%s'" % clipped_text)
newstr = self._adjustFloat(clipped_text)
else:
newstr = self._adjustFloat(value)
wx.CallAfter(self._SetValue, newstr)
fraction = self._fields[1]
start, end = fraction._extent
wx.CallAfter(self._SetInsertionPoint, start)
if fraction._selectOnFieldEntry:
dbg('queuing selection after decimal point to:', (start, end))
wx.CallAfter(self._SetSelection, start, end)
keep_processing = False
if self._isInt: ## handle integer value, truncate from current position
dbg('key == Integer decimal event')
value = self._GetValue()
clipped_text = value[0:pos]
dbg('value: "%s"' % self._GetValue(), "clipped_text:'%s'" % clipped_text)
newstr = self._adjustInt(clipped_text)
dbg('newstr: "%s"' % newstr)
wx.CallAfter(self._SetValue, newstr)
newpos = len(newstr.rstrip())
if newstr.find(')') != -1:
newpos -= 1 # (don't move past right paren)
wx.CallAfter(self._SetInsertionPoint, newpos)
keep_processing = False
dbg(indent=0)
def _OnChangeSign(self, event):
dbg('MaskedEditMixin::_OnChangeSign', indent=1)
key = event.GetKeyCode()
pos = self._adjustPos(self._GetInsertionPoint(), key)
value = self._eraseSelection()
integer = self._fields[0]
start, end = integer._extent
## dbg('adjusted pos:', pos)
if chr(key) in ('-','+','(', ')') or (chr(key) == " " and pos == self._signpos):
cursign = self._isNeg
dbg('cursign:', cursign)
if chr(key) in ('-','(', ')'):
self._isNeg = (not self._isNeg) ## flip value
else:
self._isNeg = False
dbg('isNeg?', self._isNeg)
text, self._signpos, self._right_signpos = self._getSignedValue(candidate=value)
dbg('text:"%s"' % text, 'signpos:', self._signpos, 'right_signpos:', self._right_signpos)
if text is None:
text = value
if self._isNeg and self._signpos is not None and self._signpos != -1:
if self._useParens and self._right_signpos is not None:
text = text[:self._signpos] + '(' + text[self._signpos+1:self._right_signpos] + ')' + text[self._right_signpos+1:]
else:
text = text[:self._signpos] + '-' + text[self._signpos+1:]
else:
## dbg('self._isNeg?', self._isNeg, 'self.IsValid(%s)' % text, self.IsValid(text))
if self._useParens:
text = text[:self._signpos] + ' ' + text[self._signpos+1:self._right_signpos] + ' ' + text[self._right_signpos+1:]
else:
text = text[:self._signpos] + ' ' + text[self._signpos+1:]
dbg('clearing self._isNeg')
self._isNeg = False
wx.CallAfter(self._SetValue, text)
wx.CallAfter(self._applyFormatting)
dbg('pos:', pos, 'signpos:', self._signpos)
if pos == self._signpos or integer.IsEmpty(text[start:end]):
wx.CallAfter(self._SetInsertionPoint, self._signpos+1)
else:
wx.CallAfter(self._SetInsertionPoint, pos)
keep_processing = False
else:
keep_processing = True
dbg(indent=0)
return keep_processing
def _OnGroupChar(self, event):
"""
This handler is only registered if the mask is a numeric mask.
It allows the insertion of ',' or '.' if appropriate.
"""
dbg('MaskedEditMixin::_OnGroupChar', indent=1)
keep_processing = True
pos = self._adjustPos(self._GetInsertionPoint(), event.GetKeyCode())
sel_start, sel_to = self._GetSelection()
groupchar = self._fields[0]._groupChar
if not self._isCharAllowed(groupchar, pos, checkRegex=True):
keep_processing = False
if not wx.Validator_IsSilent():
wx.Bell()
if keep_processing:
newstr, newpos = self._insertKey(groupchar, pos, sel_start, sel_to, self._GetValue() )
dbg("str with '%s' inserted:" % groupchar, '"%s"' % newstr)
if self._ctrl_constraints._validRequired and not self.IsValid(newstr):
keep_processing = False
if not wx.Validator_IsSilent():
wx.Bell()
if keep_processing:
wx.CallAfter(self._SetValue, newstr)
wx.CallAfter(self._SetInsertionPoint, newpos)
keep_processing = False
dbg(indent=0)
return keep_processing
def _findNextEntry(self,pos, adjustInsert=True):
""" Find the insertion point for the next valid entry character position."""
if self._isTemplateChar(pos): # if changing fields, pay attn to flag
adjustInsert = adjustInsert
else: # else within a field; flag not relevant
adjustInsert = False
while self._isTemplateChar(pos) and pos < self._masklength:
pos += 1
# if changing fields, and we've been told to adjust insert point,
# look at new field; if empty and right-insert field,
# adjust to right edge:
if adjustInsert and pos < self._masklength:
field = self._FindField(pos)
start, end = field._extent
slice = self._GetValue()[start:end]
if field._insertRight and field.IsEmpty(slice):
pos = end
return pos
def _findNextTemplateChar(self, pos):
""" Find the position of the next non-editable character in the mask."""
while not self._isTemplateChar(pos) and pos < self._masklength:
pos += 1
return pos
def _OnAutoCompleteField(self, event):
dbg('MaskedEditMixin::_OnAutoCompleteField', indent =1)
pos = self._GetInsertionPoint()
field = self._FindField(pos)
edit_start, edit_end, slice = self._FindFieldExtent(pos, getslice=True)
match_index = None
keycode = event.GetKeyCode()
if field._fillChar != ' ':
text = slice.replace(field._fillChar, '')
else:
text = slice
text = text.strip()
keep_processing = True # (assume True to start)
dbg('field._hasList?', field._hasList)
if field._hasList:
dbg('choices:', field._choices)
dbg('compareChoices:', field._compareChoices)
choices, choice_required = field._compareChoices, field._choiceRequired
if keycode in (wx.WXK_PRIOR, wx.WXK_UP):
direction = -1
else:
direction = 1
match_index, partial_match = self._autoComplete(direction, choices, text, compareNoCase=field._compareNoCase, current_index = field._autoCompleteIndex)
if( match_index is None
and (keycode in self._autoCompleteKeycodes + [wx.WXK_PRIOR, wx.WXK_NEXT]
or (keycode in [wx.WXK_UP, wx.WXK_DOWN] and event.ShiftDown() ) ) ):
# Select the 1st thing from the list:
match_index = 0
if( match_index is not None
and ( keycode in self._autoCompleteKeycodes + [wx.WXK_PRIOR, wx.WXK_NEXT]
or (keycode in [wx.WXK_UP, wx.WXK_DOWN] and event.ShiftDown())
or (keycode == wx.WXK_DOWN and partial_match) ) ):
# We're allowed to auto-complete:
dbg('match found')
value = self._GetValue()
newvalue = value[:edit_start] + field._choices[match_index] + value[edit_end:]
dbg('setting value to "%s"' % newvalue)
self._SetValue(newvalue)
self._SetInsertionPoint(min(edit_end, len(newvalue.rstrip())))
self._OnAutoSelect(field, match_index)
self._CheckValid() # recolor as appopriate
if keycode in (wx.WXK_UP, wx.WXK_DOWN, wx.WXK_LEFT, wx.WXK_RIGHT):
# treat as left right arrow if unshifted, tab/shift tab if shifted.
if event.ShiftDown():
if keycode in (wx.WXK_DOWN, wx.WXK_RIGHT):
# remove "shifting" and treat as (forward) tab:
event.m_shiftDown = False
keep_processing = self._OnChangeField(event)
else:
keep_processing = self._OnArrow(event)
# else some other key; keep processing the key
dbg('keep processing?', keep_processing, indent=0)
return keep_processing
def _OnAutoSelect(self, field, match_index = None):
"""
Function called if autoselect feature is enabled and entire control
is selected:
"""
dbg('MaskedEditMixin::OnAutoSelect', field._index)
if match_index is not None:
field._autoCompleteIndex = match_index
def _autoComplete(self, direction, choices, value, compareNoCase, current_index):
"""
This function gets called in response to Auto-complete events.
It attempts to find a match to the specified value against the
list of choices; if exact match, the index of then next
appropriate value in the list, based on the given direction.
If not an exact match, it will return the index of the 1st value from
the choice list for which the partial value can be extended to match.
If no match found, it will return None.
The function returns a 2-tuple, with the 2nd element being a boolean
that indicates if partial match was necessary.
"""
dbg('autoComplete(direction=', direction, 'choices=',choices, 'value=',value,'compareNoCase?', compareNoCase, 'current_index:', current_index, indent=1)
if value is None:
dbg('nothing to match against', indent=0)
return (None, False)
partial_match = False
if compareNoCase:
value = value.lower()
last_index = len(choices) - 1
if value in choices:
dbg('"%s" in', choices)
if current_index is not None and choices[current_index] == value:
index = current_index
else:
index = choices.index(value)
dbg('matched "%s" (%d)' % (choices[index], index))
if direction == -1:
dbg('going to previous')
if index == 0: index = len(choices) - 1
else: index -= 1
else:
if index == len(choices) - 1: index = 0
else: index += 1
dbg('change value to "%s" (%d)' % (choices[index], index))
match = index
else:
partial_match = True
value = value.strip()
dbg('no match; try to auto-complete:')
match = None
dbg('searching for "%s"' % value)
if current_index is None:
indices = range(len(choices))
if direction == -1:
indices.reverse()
else:
if direction == 1:
indices = range(current_index +1, len(choices)) + range(current_index+1)
dbg('range(current_index+1 (%d), len(choices) (%d)) + range(%d):' % (current_index+1, len(choices), current_index+1), indices)
else:
indices = range(current_index-1, -1, -1) + range(len(choices)-1, current_index-1, -1)
dbg('range(current_index-1 (%d), -1) + range(len(choices)-1 (%d)), current_index-1 (%d):' % (current_index-1, len(choices)-1, current_index-1), indices)
## dbg('indices:', indices)
for index in indices:
choice = choices[index]
if choice.find(value, 0) == 0:
dbg('match found:', choice)
match = index
break
else: dbg('choice: "%s" - no match' % choice)
if match is not None:
dbg('matched', match)
else:
dbg('no match found')
dbg(indent=0)
return (match, partial_match)
def _AdjustField(self, pos):
"""
This function gets called by default whenever the cursor leaves a field.
The pos argument given is the char position before leaving that field.
By default, floating point, integer and date values are adjusted to be
legal in this function. Derived classes may override this function
to modify the value of the control in a different way when changing fields.
NOTE: these change the value immediately, and restore the cursor to
the passed location, so that any subsequent code can then move it
based on the operation being performed.
"""
newvalue = value = self._GetValue()
field = self._FindField(pos)
start, end, slice = self._FindFieldExtent(getslice=True)
newfield = field._AdjustField(slice)
newvalue = value[:start] + newfield + value[end:]
if self._isFloat and newvalue != self._template:
newvalue = self._adjustFloat(newvalue)
if self._ctrl_constraints._isInt and value != self._template:
newvalue = self._adjustInt(value)
if self._isDate and value != self._template:
newvalue = self._adjustDate(value, fixcentury=True)
if self._4digityear:
year2dig = self._dateExtent - 2
if pos == year2dig and value[year2dig] != newvalue[year2dig]:
pos = pos+2
if newvalue != value:
self._SetValue(newvalue)
self._SetInsertionPoint(pos)
def _adjustKey(self, pos, key):
""" Apply control formatting to the key (e.g. convert to upper etc). """
field = self._FindField(pos)
if field._forceupper and key in range(97,123):
key = ord( chr(key).upper())
if field._forcelower and key in range(97,123):
key = ord( chr(key).lower())
return key
def _adjustPos(self, pos, key):
"""
Checks the current insertion point position and adjusts it if
necessary to skip over non-editable characters.
"""
dbg('_adjustPos', pos, key, indent=1)
sel_start, sel_to = self._GetSelection()
# If a numeric or decimal mask, and negatives allowed, reserve the
# first space for sign, and last one if using parens.
if( self._signOk
and ((pos == self._signpos and key in (ord('-'), ord('+'), ord(' ')) )
or self._useParens and pos == self._masklength -1)):
dbg('adjusted pos:', pos, indent=0)
return pos
if key not in self._nav:
field = self._FindField(pos)
dbg('field._insertRight?', field._insertRight)
if field._insertRight: # if allow right-insert
start, end = field._extent
slice = self._GetValue()[start:end].strip()
field_len = end - start
if pos == end: # if cursor at right edge of field
# if not filled or supposed to stay in field, keep current position
## dbg('pos==end')
## dbg('len (slice):', len(slice))
## dbg('field_len?', field_len)
## dbg('pos==end; len (slice) < field_len?', len(slice) < field_len)
## dbg('not field._moveOnFieldFull?', not field._moveOnFieldFull)
if len(slice) == field_len and field._moveOnFieldFull:
# move cursor to next field:
pos = self._findNextEntry(pos)
self._SetInsertionPoint(pos)
if pos < sel_to:
self._SetSelection(pos, sel_to) # restore selection
else:
self._SetSelection(pos, pos) # remove selection
else: # leave cursor alone
pass
else:
# if at start of control, move to right edge
if sel_to == sel_start and self._isTemplateChar(pos) and pos != end:
pos = end # move to right edge
## elif sel_start <= start and sel_to == end:
## # select to right edge of field - 1 (to replace char)
## pos = end - 1
## self._SetInsertionPoint(pos)
## # restore selection
## self._SetSelection(sel_start, pos)
elif self._signOk and sel_start == 0: # if selected to beginning and signed,
# adjust to past reserved sign position:
pos = self._fields[0]._extent[0]
self._SetInsertionPoint(pos)
# restore selection
self._SetSelection(pos, sel_to)
else:
pass # leave position/selection alone
# else make sure the user is not trying to type over a template character
# If they are, move them to the next valid entry position
elif self._isTemplateChar(pos):
if( not field._moveOnFieldFull
and (not self._signOk
or (self._signOk
and field._index == 0
and pos > 0) ) ): # don't move to next field without explicit cursor movement
pass
else:
# find next valid position
pos = self._findNextEntry(pos)
self._SetInsertionPoint(pos)
if pos < sel_to: # restore selection
self._SetSelection(pos, sel_to)
dbg('adjusted pos:', pos, indent=0)
return pos
def _adjustFloat(self, candidate=None):
"""
'Fixes' an floating point control. Collapses spaces, right-justifies, etc.
"""
dbg('MaskedEditMixin::_adjustFloat, candidate = "%s"' % candidate, indent=1)
lenInt,lenFraction = [len(s) for s in self._mask.split('.')] ## Get integer, fraction lengths
if candidate is None: value = self._GetValue()
else: value = candidate
dbg('value = "%(value)s"' % locals(), 'len(value):', len(value))
intStr, fracStr = value.split(self._decimalChar)
intStr = self._fields[0]._AdjustField(intStr)
dbg('adjusted intStr: "%s"' % intStr)
lenInt = len(intStr)
fracStr = fracStr + ('0'*(lenFraction-len(fracStr))) # add trailing spaces to decimal
dbg('intStr "%(intStr)s"' % locals())
dbg('lenInt:', lenInt)
intStr = string.rjust( intStr[-lenInt:], lenInt)
dbg('right-justifed intStr = "%(intStr)s"' % locals())
newvalue = intStr + self._decimalChar + fracStr
if self._signOk:
if len(newvalue) < self._masklength:
newvalue = ' ' + newvalue
signedvalue = self._getSignedValue(newvalue)[0]
if signedvalue is not None: newvalue = signedvalue
# Finally, align string with decimal position, left-padding with
# fillChar:
newdecpos = newvalue.find(self._decimalChar)
if newdecpos < self._decimalpos:
padlen = self._decimalpos - newdecpos
newvalue = string.join([' ' * padlen] + [newvalue] ,'')
if self._signOk and self._useParens:
if newvalue.find('(') != -1:
newvalue = newvalue[:-1] + ')'
else:
newvalue = newvalue[:-1] + ' '
dbg('newvalue = "%s"' % newvalue)
if candidate is None:
wx.CallAfter(self._SetValue, newvalue)
dbg(indent=0)
return newvalue
def _adjustInt(self, candidate=None):
""" 'Fixes' an integer control. Collapses spaces, right or left-justifies."""
dbg("MaskedEditMixin::_adjustInt", candidate)
lenInt = self._masklength
if candidate is None: value = self._GetValue()
else: value = candidate
intStr = self._fields[0]._AdjustField(value)
intStr = intStr.strip() # drop extra spaces
dbg('adjusted field: "%s"' % intStr)
if self._isNeg and intStr.find('-') == -1 and intStr.find('(') == -1:
if self._useParens:
intStr = '(' + intStr + ')'
else:
intStr = '-' + intStr
elif self._isNeg and intStr.find('-') != -1 and self._useParens:
intStr = intStr.replace('-', '(')
if( self._signOk and ((self._useParens and intStr.find('(') == -1)
or (not self._useParens and intStr.find('-') == -1))):
intStr = ' ' + intStr
if self._useParens:
intStr += ' ' # space for right paren position
elif self._signOk and self._useParens and intStr.find('(') != -1 and intStr.find(')') == -1:
# ensure closing right paren:
intStr += ')'
if self._fields[0]._alignRight: ## Only if right-alignment is enabled
intStr = intStr.rjust( lenInt )
else:
intStr = intStr.ljust( lenInt )
if candidate is None:
wx.CallAfter(self._SetValue, intStr )
return intStr
def _adjustDate(self, candidate=None, fixcentury=False, force4digit_year=False):
"""
'Fixes' a date control, expanding the year if it can.
Applies various self-formatting options.
"""
dbg("MaskedEditMixin::_adjustDate", indent=1)
if candidate is None: text = self._GetValue()
else: text = candidate
dbg('text=', text)
if self._datestyle == "YMD":
year_field = 0
else:
year_field = 2
dbg('getYear: "%s"' % getYear(text, self._datestyle))
year = string.replace( getYear( text, self._datestyle),self._fields[year_field]._fillChar,"") # drop extra fillChars
month = getMonth( text, self._datestyle)
day = getDay( text, self._datestyle)
dbg('self._datestyle:', self._datestyle, 'year:', year, 'Month', month, 'day:', day)
yearVal = None
yearstart = self._dateExtent - 4
if( len(year) < 4
and (fixcentury
or force4digit_year
or (self._GetInsertionPoint() > yearstart+1 and text[yearstart+2] == ' ')
or (self._GetInsertionPoint() > yearstart+2 and text[yearstart+3] == ' ') ) ):
## user entered less than four digits and changing fields or past point where we could
## enter another digit:
try:
yearVal = int(year)
except:
dbg('bad year=', year)
year = text[yearstart:self._dateExtent]
if len(year) < 4 and yearVal:
if len(year) == 2:
# Fix year adjustment to be less "20th century" :-) and to adjust heuristic as the
# years pass...
now = wx.DateTime_Now()
century = (now.GetYear() /100) * 100 # "this century"
twodig_year = now.GetYear() - century # "this year" (2 digits)
# if separation between today's 2-digit year and typed value > 50,
# assume last century,
# else assume this century.
#
# Eg: if 2003 and yearVal == 30, => 2030
# if 2055 and yearVal == 80, => 2080
# if 2010 and yearVal == 96, => 1996
#
if abs(yearVal - twodig_year) > 50:
yearVal = (century - 100) + yearVal
else:
yearVal = century + yearVal
year = str( yearVal )
else: # pad with 0's to make a 4-digit year
year = "%04d" % yearVal
if self._4digityear or force4digit_year:
text = makeDate(year, month, day, self._datestyle, text) + text[self._dateExtent:]
dbg('newdate: "%s"' % text, indent=0)
return text
def _goEnd(self, getPosOnly=False):
""" Moves the insertion point to the end of user-entry """
dbg("MaskedEditMixin::_goEnd; getPosOnly:", getPosOnly, indent=1)
text = self._GetValue()
## dbg('text: "%s"' % text)
i = 0
if len(text.rstrip()):
for i in range( min( self._masklength-1, len(text.rstrip())), -1, -1):
## dbg('i:', i, 'self._isMaskChar(%d)' % i, self._isMaskChar(i))
if self._isMaskChar(i):
char = text[i]
## dbg("text[%d]: '%s'" % (i, char))
if char != ' ':
i += 1
break
if i == 0:
pos = self._goHome(getPosOnly=True)
else:
pos = min(i,self._masklength)
field = self._FindField(pos)
start, end = field._extent
if field._insertRight and pos < end:
pos = end
dbg('next pos:', pos)
dbg(indent=0)
if getPosOnly:
return pos
else:
self._SetInsertionPoint(pos)
def _goHome(self, getPosOnly=False):
""" Moves the insertion point to the beginning of user-entry """
dbg("MaskedEditMixin::_goHome; getPosOnly:", getPosOnly, indent=1)
text = self._GetValue()
for i in range(self._masklength):
if self._isMaskChar(i):
break
pos = max(i, 0)
dbg(indent=0)
if getPosOnly:
return pos
else:
self._SetInsertionPoint(max(i,0))
def _getAllowedChars(self, pos):
""" Returns a string of all allowed user input characters for the provided
mask character plus control options
"""
maskChar = self.maskdict[pos]
okchars = self.maskchardict[maskChar] ## entry, get mask approved characters
field = self._FindField(pos)
if okchars and field._okSpaces: ## Allow spaces?
okchars += " "
if okchars and field._includeChars: ## any additional included characters?
okchars += field._includeChars
## dbg('okchars[%d]:' % pos, okchars)
return okchars
def _isMaskChar(self, pos):
""" Returns True if the char at position pos is a special mask character (e.g. NCXaA#)
"""
if pos < self._masklength:
return self.ismasked[pos]
else:
return False
def _isTemplateChar(self,Pos):
""" Returns True if the char at position pos is a template character (e.g. -not- NCXaA#)
"""
if Pos < self._masklength:
return not self._isMaskChar(Pos)
else:
return False
def _isCharAllowed(self, char, pos, checkRegex=False, allowAutoSelect=True, ignoreInsertRight=False):
""" Returns True if character is allowed at the specific position, otherwise False."""
dbg('_isCharAllowed', char, pos, checkRegex, indent=1)
field = self._FindField(pos)
right_insert = False
if self.controlInitialized:
sel_start, sel_to = self._GetSelection()
else:
sel_start, sel_to = pos, pos
if (field._insertRight or self._ctrl_constraints._insertRight) and not ignoreInsertRight:
start, end = field._extent
field_len = end - start
if self.controlInitialized:
value = self._GetValue()
fstr = value[start:end].strip()
if field._padZero:
while fstr and fstr[0] == '0':
fstr = fstr[1:]
input_len = len(fstr)
if self._signOk and '-' in fstr or '(' in fstr:
input_len -= 1 # sign can move out of field, so don't consider it in length
else:
value = self._template
input_len = 0 # can't get the current "value", so use 0
# if entire field is selected or position is at end and field is not full,
# or if allowed to right-insert at any point in field and field is not full and cursor is not at a fillChar:
if( (sel_start, sel_to) == field._extent
or (pos == end and input_len < field_len)):
pos = end - 1
dbg('pos = end - 1 = ', pos, 'right_insert? 1')
right_insert = True
elif( field._allowInsert and sel_start == sel_to
and (sel_to == end or (sel_to < self._masklength and value[sel_start] != field._fillChar))
and input_len < field_len ):
pos = sel_to - 1 # where character will go
dbg('pos = sel_to - 1 = ', pos, 'right_insert? 1')
right_insert = True
# else leave pos alone...
else:
dbg('pos stays ', pos, 'right_insert? 0')
if self._isTemplateChar( pos ): ## if a template character, return empty
dbg('%d is a template character; returning False' % pos, indent=0)
return False
if self._isMaskChar( pos ):
okChars = self._getAllowedChars(pos)
if self._fields[0]._groupdigits and (self._isInt or (self._isFloat and pos < self._decimalpos)):
okChars += self._fields[0]._groupChar
if self._signOk:
if self._isInt or (self._isFloat and pos < self._decimalpos):
okChars += '-'
if self._useParens:
okChars += '('
elif self._useParens and (self._isInt or (self._isFloat and pos > self._decimalpos)):
okChars += ')'
## dbg('%s in %s?' % (char, okChars), char in okChars)
approved = char in okChars
if approved and checkRegex:
dbg("checking appropriate regex's")
value = self._eraseSelection(self._GetValue())
if right_insert:
at = pos+1
else:
at = pos
if allowAutoSelect:
newvalue, ignore, ignore, ignore, ignore = self._insertKey(char, at, sel_start, sel_to, value, allowAutoSelect=True)
else:
newvalue, ignore = self._insertKey(char, at, sel_start, sel_to, value)
dbg('newvalue: "%s"' % newvalue)
fields = [self._FindField(pos)] + [self._ctrl_constraints]
for field in fields: # includes fields[-1] == "ctrl_constraints"
if field._regexMask and field._filter:
dbg('checking vs. regex')
start, end = field._extent
slice = newvalue[start:end]
approved = (re.match( field._filter, slice) is not None)
dbg('approved?', approved)
if not approved: break
dbg(indent=0)
return approved
else:
dbg('%d is a !???! character; returning False', indent=0)
return False
def _applyFormatting(self):
""" Apply formatting depending on the control's state.
Need to find a way to call this whenever the value changes, in case the control's
value has been changed or set programatically.
"""
dbg(suspend=1)
dbg('MaskedEditMixin::_applyFormatting', indent=1)
# Handle negative numbers
if self._signOk:
text, signpos, right_signpos = self._getSignedValue()
dbg('text: "%s", signpos:' % text, signpos)
if not text or text[signpos] not in ('-','('):
self._isNeg = False
dbg('no valid sign found; new sign:', self._isNeg)
if text and signpos != self._signpos:
self._signpos = signpos
elif text and self._valid and not self._isNeg and text[signpos] in ('-', '('):
dbg('setting _isNeg to True')
self._isNeg = True
dbg('self._isNeg:', self._isNeg)
if self._signOk and self._isNeg:
fc = self._signedForegroundColour
else:
fc = self._foregroundColour
if hasattr(fc, '_name'):
c =fc._name
else:
c = fc
dbg('setting foreground to', c)
self.SetForegroundColour(fc)
if self._valid:
dbg('valid')
if self.IsEmpty():
bc = self._emptyBackgroundColour
else:
bc = self._validBackgroundColour
else:
dbg('invalid')
bc = self._invalidBackgroundColour
if hasattr(bc, '_name'):
c =bc._name
else:
c = bc
dbg('setting background to', c)
self.SetBackgroundColour(bc)
self._Refresh()
dbg(indent=0, suspend=0)
def _getAbsValue(self, candidate=None):
""" Return an unsigned value (i.e. strip the '-' prefix if any), and sign position(s).
"""
dbg('MaskedEditMixin::_getAbsValue; candidate="%s"' % candidate, indent=1)
if candidate is None: text = self._GetValue()
else: text = candidate
right_signpos = text.find(')')
if self._isInt:
if self._ctrl_constraints._alignRight and self._fields[0]._fillChar == ' ':
signpos = text.find('-')
if signpos == -1:
dbg('no - found; searching for (')
signpos = text.find('(')
elif signpos != -1:
dbg('- found at', signpos)
if signpos == -1:
dbg('signpos still -1')
dbg('len(%s) (%d) < len(%s) (%d)?' % (text, len(text), self._mask, self._masklength), len(text) < self._masklength)
if len(text) < self._masklength:
text = ' ' + text
if len(text) < self._masklength:
text += ' '
if len(text) > self._masklength and text[-1] in (')', ' '):
text = text[:-1]
else:
dbg('len(%s) (%d), len(%s) (%d)' % (text, len(text), self._mask, self._masklength))
dbg('len(%s) - (len(%s) + 1):' % (text, text.lstrip()) , len(text) - (len(text.lstrip()) + 1))
signpos = len(text) - (len(text.lstrip()) + 1)
if self._useParens and not text.strip():
signpos -= 1 # empty value; use penultimate space
dbg('signpos:', signpos)
if signpos >= 0:
text = text[:signpos] + ' ' + text[signpos+1:]
else:
if self._signOk:
signpos = 0
text = self._template[0] + text[1:]
else:
signpos = -1
if right_signpos != -1:
if self._signOk:
text = text[:right_signpos] + ' ' + text[right_signpos+1:]
elif len(text) > self._masklength:
text = text[:right_signpos] + text[right_signpos+1:]
right_signpos = -1
elif self._useParens and self._signOk:
# figure out where it ought to go:
right_signpos = self._masklength - 1 # initial guess
if not self._ctrl_constraints._alignRight:
dbg('not right-aligned')
if len(text.strip()) == 0:
right_signpos = signpos + 1
elif len(text.strip()) < self._masklength:
right_signpos = len(text.rstrip())
dbg('right_signpos:', right_signpos)
groupchar = self._fields[0]._groupChar
try:
value = long(text.replace(groupchar,'').replace('(','-').replace(')','').replace(' ', ''))
except:
dbg('invalid number', indent=0)
return None, signpos, right_signpos
else: # float value
try:
groupchar = self._fields[0]._groupChar
value = float(text.replace(groupchar,'').replace(self._decimalChar, '.').replace('(', '-').replace(')','').replace(' ', ''))
dbg('value:', value)
except:
value = None
if value < 0 and value is not None:
signpos = text.find('-')
if signpos == -1:
signpos = text.find('(')
text = text[:signpos] + self._template[signpos] + text[signpos+1:]
else:
# look forwards up to the decimal point for the 1st non-digit
dbg('decimal pos:', self._decimalpos)
dbg('text: "%s"' % text)
if self._signOk:
signpos = self._decimalpos - (len(text[:self._decimalpos].lstrip()) + 1)
# prevent checking for empty string - Tomo - Wed 14 Jan 2004 03:19:09 PM CET
if len(text) >= signpos+1 and text[signpos+1] in ('-','('):
signpos += 1
else:
signpos = -1
dbg('signpos:', signpos)
if self._useParens:
if self._signOk:
right_signpos = self._masklength - 1
text = text[:right_signpos] + ' '
if text[signpos] == '(':
text = text[:signpos] + ' ' + text[signpos+1:]
else:
right_signpos = text.find(')')
if right_signpos != -1:
text = text[:-1]
right_signpos = -1
if value is None:
dbg('invalid number')
text = None
dbg('abstext = "%s"' % text, 'signpos:', signpos, 'right_signpos:', right_signpos)
dbg(indent=0)
return text, signpos, right_signpos
def _getSignedValue(self, candidate=None):
""" Return a signed value by adding a "-" prefix if the value
is set to negative, or a space if positive.
"""
dbg('MaskedEditMixin::_getSignedValue; candidate="%s"' % candidate, indent=1)
if candidate is None: text = self._GetValue()
else: text = candidate
abstext, signpos, right_signpos = self._getAbsValue(text)
if self._signOk:
if abstext is None:
dbg(indent=0)
return abstext, signpos, right_signpos
if self._isNeg or text[signpos] in ('-', '('):
if self._useParens:
sign = '('
else:
sign = '-'
else:
sign = ' '
if abstext[signpos] not in string.digits:
text = abstext[:signpos] + sign + abstext[signpos+1:]
else:
# this can happen if value passed is too big; sign assumed to be
# in position 0, but if already filled with a digit, prepend sign...
text = sign + abstext
if self._useParens and text.find('(') != -1:
text = text[:right_signpos] + ')' + text[right_signpos+1:]
else:
text = abstext
dbg('signedtext = "%s"' % text, 'signpos:', signpos, 'right_signpos', right_signpos)
dbg(indent=0)
return text, signpos, right_signpos
def GetPlainValue(self, candidate=None):
""" Returns control's value stripped of the template text.
plainvalue = MaskedEditMixin.GetPlainValue()
"""
dbg('MaskedEditMixin::GetPlainValue; candidate="%s"' % candidate, indent=1)
if candidate is None: text = self._GetValue()
else: text = candidate
if self.IsEmpty():
dbg('returned ""', indent=0)
return ""
else:
plain = ""
for idx in range( min(len(self._template), len(text)) ):
if self._mask[idx] in maskchars:
plain += text[idx]
if self._isFloat or self._isInt:
dbg('plain so far: "%s"' % plain)
plain = plain.replace('(', '-').replace(')', ' ')
dbg('plain after sign regularization: "%s"' % plain)
if self._signOk and self._isNeg and plain.count('-') == 0:
# must be in reserved position; add to "plain value"
plain = '-' + plain.strip()
if self._fields[0]._alignRight:
lpad = plain.count(',')
plain = ' ' * lpad + plain.replace(',','')
else:
plain = plain.replace(',','')
dbg('plain after pad and group:"%s"' % plain)
dbg('returned "%s"' % plain.rstrip(), indent=0)
return plain.rstrip()
def IsEmpty(self, value=None):
"""
Returns True if control is equal to an empty value.
(Empty means all editable positions in the template == fillChar.)
"""
if value is None: value = self._GetValue()
if value == self._template and not self._defaultValue:
## dbg("IsEmpty? 1 (value == self._template and not self._defaultValue)")
return True # (all mask chars == fillChar by defn)
elif value == self._template:
empty = True
for pos in range(len(self._template)):
## dbg('isMaskChar(%(pos)d)?' % locals(), self._isMaskChar(pos))
## dbg('value[%(pos)d] != self._fillChar?' %locals(), value[pos] != self._fillChar[pos])
if self._isMaskChar(pos) and value[pos] not in (' ', self._fillChar[pos]):
empty = False
## dbg("IsEmpty? %(empty)d (do all mask chars == fillChar?)" % locals())
return empty
else:
## dbg("IsEmpty? 0 (value doesn't match template)")
return False
def IsDefault(self, value=None):
"""
Returns True if the value specified (or the value of the control if not specified)
is equal to the default value.
"""
if value is None: value = self._GetValue()
return value == self._template
def IsValid(self, value=None):
""" Indicates whether the value specified (or the current value of the control
if not specified) is considered valid."""
## dbg('MaskedEditMixin::IsValid("%s")' % value, indent=1)
if value is None: value = self._GetValue()
ret = self._CheckValid(value)
## dbg(indent=0)
return ret
def _eraseSelection(self, value=None, sel_start=None, sel_to=None):
""" Used to blank the selection when inserting a new character. """
dbg("MaskedEditMixin::_eraseSelection", indent=1)
if value is None: value = self._GetValue()
if sel_start is None or sel_to is None:
sel_start, sel_to = self._GetSelection() ## check for a range of selected text
dbg('value: "%s"' % value)
dbg("current sel_start, sel_to:", sel_start, sel_to)
newvalue = list(value)
for i in range(sel_start, sel_to):
if self._signOk and newvalue[i] in ('-', '(', ')'):
dbg('found sign (%s) at' % newvalue[i], i)
# balance parentheses:
if newvalue[i] == '(':
right_signpos = value.find(')')
if right_signpos != -1:
newvalue[right_signpos] = ' '
elif newvalue[i] == ')':
left_signpos = value.find('(')
if left_signpos != -1:
newvalue[left_signpos] = ' '
newvalue[i] = ' '
elif self._isMaskChar(i):
field = self._FindField(i)
if field._padZero:
newvalue[i] = '0'
else:
newvalue[i] = self._template[i]
value = string.join(newvalue,"")
dbg('new value: "%s"' % value)
dbg(indent=0)
return value
def _insertKey(self, char, pos, sel_start, sel_to, value, allowAutoSelect=False):
""" Handles replacement of the character at the current insertion point."""
dbg('MaskedEditMixin::_insertKey', "\'" + char + "\'", pos, sel_start, sel_to, '"%s"' % value, indent=1)
text = self._eraseSelection(value)
field = self._FindField(pos)
start, end = field._extent
newtext = ""
newpos = pos
if pos != sel_start and sel_start == sel_to:
# adjustpos must have moved the position; make selection match:
sel_start = sel_to = pos
dbg('field._insertRight?', field._insertRight)
if( field._insertRight # field allows right insert
and ((sel_start, sel_to) == field._extent # and whole field selected
or (sel_start == sel_to # or nothing selected
and (sel_start == end # and cursor at right edge
or (field._allowInsert # or field allows right-insert
and sel_start < end # next to other char in field:
and text[sel_start] != field._fillChar) ) ) ) ):
dbg('insertRight')
fstr = text[start:end]
erasable_chars = [field._fillChar, ' ']
if field._padZero:
erasable_chars.append('0')
erased = ''
## dbg("fstr[0]:'%s'" % fstr[0])
## dbg('field_index:', field._index)
## dbg("fstr[0] in erasable_chars?", fstr[0] in erasable_chars)
## dbg("self._signOk and field._index == 0 and fstr[0] in ('-','(')?",
## self._signOk and field._index == 0 and fstr[0] in ('-','('))
if fstr[0] in erasable_chars or (self._signOk and field._index == 0 and fstr[0] in ('-','(')):
erased = fstr[0]
## dbg('value: "%s"' % text)
## dbg('fstr: "%s"' % fstr)
## dbg("erased: '%s'" % erased)
field_sel_start = sel_start - start
field_sel_to = sel_to - start
dbg('left fstr: "%s"' % fstr[1:field_sel_start])
dbg('right fstr: "%s"' % fstr[field_sel_to:end])
fstr = fstr[1:field_sel_start] + char + fstr[field_sel_to:end]
if field._alignRight and sel_start != sel_to:
field_len = end - start
## pos += (field_len - len(fstr)) # move cursor right by deleted amount
pos = sel_to
dbg('setting pos to:', pos)
if field._padZero:
fstr = '0' * (field_len - len(fstr)) + fstr
else:
fstr = fstr.rjust(field_len) # adjust the field accordingly
dbg('field str: "%s"' % fstr)
newtext = text[:start] + fstr + text[end:]
if erased in ('-', '(') and self._signOk:
newtext = erased + newtext[1:]
dbg('newtext: "%s"' % newtext)
if self._signOk and field._index == 0:
start -= 1 # account for sign position
## dbg('field._moveOnFieldFull?', field._moveOnFieldFull)
## dbg('len(fstr.lstrip()) == end-start?', len(fstr.lstrip()) == end-start)
if( field._moveOnFieldFull and pos == end
and len(fstr.lstrip()) == end-start): # if field now full
newpos = self._findNextEntry(end) # go to next field
else:
newpos = pos # else keep cursor at current position
if not newtext:
dbg('not newtext')
if newpos != pos:
dbg('newpos:', newpos)
if self._signOk and self._useParens:
old_right_signpos = text.find(')')
if field._allowInsert and not field._insertRight and sel_to <= end and sel_start >= start:
# inserting within a left-insert-capable field
field_len = end - start
before = text[start:sel_start]
after = text[sel_to:end].strip()
## dbg("current field:'%s'" % text[start:end])
## dbg("before:'%s'" % before, "after:'%s'" % after)
new_len = len(before) + len(after) + 1 # (for inserted char)
## dbg('new_len:', new_len)
if new_len < field_len:
retained = after + self._template[end-(field_len-new_len):end]
elif new_len > end-start:
retained = after[1:]
else:
retained = after
left = text[0:start] + before
## dbg("left:'%s'" % left, "retained:'%s'" % retained)
right = retained + text[end:]
else:
left = text[0:pos]
right = text[pos+1:]
newtext = left + char + right
if self._signOk and self._useParens:
# Balance parentheses:
left_signpos = newtext.find('(')
if left_signpos == -1: # erased '('; remove ')'
right_signpos = newtext.find(')')
if right_signpos != -1:
newtext = newtext[:right_signpos] + ' ' + newtext[right_signpos+1:]
elif old_right_signpos != -1:
right_signpos = newtext.find(')')
if right_signpos == -1: # just replaced right-paren
if newtext[pos] == ' ': # we just erased '); erase '('
newtext = newtext[:left_signpos] + ' ' + newtext[left_signpos+1:]
else: # replaced with digit; move ') over
if self._ctrl_constraints._alignRight or self._isFloat:
newtext = newtext[:-1] + ')'
else:
rstripped_text = newtext.rstrip()
right_signpos = len(rstripped_text)
dbg('old_right_signpos:', old_right_signpos, 'right signpos now:', right_signpos)
newtext = newtext[:right_signpos] + ')' + newtext[right_signpos+1:]
if( field._insertRight # if insert-right field (but we didn't start at right edge)
and field._moveOnFieldFull # and should move cursor when full
and len(newtext[start:end].strip()) == end-start): # and field now full
newpos = self._findNextEntry(end) # go to next field
dbg('newpos = nextentry =', newpos)
else:
dbg('pos:', pos, 'newpos:', pos+1)
newpos = pos+1
if allowAutoSelect:
new_select_to = newpos # (default return values)
match_field = None
match_index = None
if field._autoSelect:
match_index, partial_match = self._autoComplete(1, # (always forward)
field._compareChoices,
newtext[start:end],
compareNoCase=field._compareNoCase,
current_index = field._autoCompleteIndex-1)
if match_index is not None and partial_match:
matched_str = newtext[start:end]
newtext = newtext[:start] + field._choices[match_index] + newtext[end:]
new_select_to = end
match_field = field
if field._insertRight:
# adjust position to just after partial match in field
newpos = end - (len(field._choices[match_index].strip()) - len(matched_str.strip()))
elif self._ctrl_constraints._autoSelect:
match_index, partial_match = self._autoComplete(
1, # (always forward)
self._ctrl_constraints._compareChoices,
newtext,
self._ctrl_constraints._compareNoCase,
current_index = self._ctrl_constraints._autoCompleteIndex - 1)
if match_index is not None and partial_match:
matched_str = newtext
newtext = self._ctrl_constraints._choices[match_index]
new_select_to = self._ctrl_constraints._extent[1]
match_field = self._ctrl_constraints
if self._ctrl_constraints._insertRight:
# adjust position to just after partial match in control:
newpos = self._masklength - (len(self._ctrl_constraints._choices[match_index].strip()) - len(matched_str.strip()))
dbg('newtext: "%s"' % newtext, 'newpos:', newpos, 'new_select_to:', new_select_to)
dbg(indent=0)
return newtext, newpos, new_select_to, match_field, match_index
else:
dbg('newtext: "%s"' % newtext, 'newpos:', newpos)
dbg(indent=0)
return newtext, newpos
def _OnFocus(self,event):
"""
This event handler is currently necessary to work around new default
behavior as of wxPython2.3.3;
The TAB key auto selects the entire contents of the wxTextCtrl *after*
the EVT_SET_FOCUS event occurs; therefore we can't query/adjust the selection
*here*, because it hasn't happened yet. So to prevent this behavior, and
preserve the correct selection when the focus event is not due to tab,
we need to pull the following trick:
"""
dbg('MaskedEditMixin::_OnFocus')
wx.CallAfter(self._fixSelection)
event.Skip()
self.Refresh()
def _CheckValid(self, candidate=None):
"""
This is the default validation checking routine; It verifies that the
current value of the control is a "valid value," and has the side
effect of coloring the control appropriately.
"""
dbg(suspend=1)
dbg('MaskedEditMixin::_CheckValid: candidate="%s"' % candidate, indent=1)
oldValid = self._valid
if candidate is None: value = self._GetValue()
else: value = candidate
dbg('value: "%s"' % value)
oldvalue = value
valid = True # assume True
if not self.IsDefault(value) and self._isDate: ## Date type validation
valid = self._validateDate(value)
dbg("valid date?", valid)
elif not self.IsDefault(value) and self._isTime:
valid = self._validateTime(value)
dbg("valid time?", valid)
elif not self.IsDefault(value) and (self._isInt or self._isFloat): ## Numeric type
valid = self._validateNumeric(value)
dbg("valid Number?", valid)
if valid: # and not self.IsDefault(value): ## generic validation accounts for IsDefault()
## valid so far; ensure also allowed by any list or regex provided:
valid = self._validateGeneric(value)
dbg("valid value?", valid)
dbg('valid?', valid)
if not candidate:
self._valid = valid
self._applyFormatting()
if self._valid != oldValid:
dbg('validity changed: oldValid =',oldValid,'newvalid =', self._valid)
dbg('oldvalue: "%s"' % oldvalue, 'newvalue: "%s"' % self._GetValue())
dbg(indent=0, suspend=0)
return valid
def _validateGeneric(self, candidate=None):
""" Validate the current value using the provided list or Regex filter (if any).
"""
if candidate is None:
text = self._GetValue()
else:
text = candidate
valid = True # assume True
for i in [-1] + self._field_indices: # process global constraints first:
field = self._fields[i]
start, end = field._extent
slice = text[start:end]
valid = field.IsValid(slice)
if not valid:
break
return valid
def _validateNumeric(self, candidate=None):
""" Validate that the value is within the specified range (if specified.)"""
if candidate is None: value = self._GetValue()
else: value = candidate
try:
groupchar = self._fields[0]._groupChar
if self._isFloat:
number = float(value.replace(groupchar, '').replace(self._decimalChar, '.').replace('(', '-').replace(')', ''))
else:
number = long( value.replace(groupchar, '').replace('(', '-').replace(')', ''))
if value.strip():
if self._fields[0]._alignRight:
require_digit_at = self._fields[0]._extent[1]-1
else:
require_digit_at = self._fields[0]._extent[0]
dbg('require_digit_at:', require_digit_at)
dbg("value[rda]: '%s'" % value[require_digit_at])
if value[require_digit_at] not in list(string.digits):
valid = False
return valid
# else...
dbg('number:', number)
if self._ctrl_constraints._hasRange:
valid = self._ctrl_constraints._rangeLow <= number <= self._ctrl_constraints._rangeHigh
else:
valid = True
groupcharpos = value.rfind(groupchar)
if groupcharpos != -1: # group char present
dbg('groupchar found at', groupcharpos)
if self._isFloat and groupcharpos > self._decimalpos:
# 1st one found on right-hand side is past decimal point
dbg('groupchar in fraction; illegal')
valid = False
elif self._isFloat:
integer = value[:self._decimalpos].strip()
else:
integer = value.strip()
dbg("integer:'%s'" % integer)
if integer[0] in ('-', '('):
integer = integer[1:]
if integer[-1] == ')':
integer = integer[:-1]
parts = integer.split(groupchar)
dbg('parts:', parts)
for i in range(len(parts)):
if i == 0 and abs(int(parts[0])) > 999:
dbg('group 0 too long; illegal')
valid = False
break
elif i > 0 and (len(parts[i]) != 3 or ' ' in parts[i]):
dbg('group %i (%s) not right size; illegal' % (i, parts[i]))
valid = False
break
except ValueError:
dbg('value not a valid number')
valid = False
return valid
def _validateDate(self, candidate=None):
""" Validate the current date value using the provided Regex filter.
Generally used for character types.BufferType
"""
dbg('MaskedEditMixin::_validateDate', indent=1)
if candidate is None: value = self._GetValue()
else: value = candidate
dbg('value = "%s"' % value)
text = self._adjustDate(value, force4digit_year=True) ## Fix the date up before validating it
dbg('text =', text)
valid = True # assume True until proven otherwise
try:
# replace fillChar in each field with space:
datestr = text[0:self._dateExtent]
for i in range(3):
field = self._fields[i]
start, end = field._extent
fstr = datestr[start:end]
fstr.replace(field._fillChar, ' ')
datestr = datestr[:start] + fstr + datestr[end:]
year, month, day = getDateParts( datestr, self._datestyle)
year = int(year)
dbg('self._dateExtent:', self._dateExtent)
if self._dateExtent == 11:
month = charmonths_dict[month.lower()]
else:
month = int(month)
day = int(day)
dbg('year, month, day:', year, month, day)
except ValueError:
dbg('cannot convert string to integer parts')
valid = False
except KeyError:
dbg('cannot convert string to integer month')
valid = False
if valid:
# use wxDateTime to unambiguously try to parse the date:
# ### Note: because wxDateTime is *brain-dead* and expects months 0-11,
# rather than 1-12, so handle accordingly:
if month > 12:
valid = False
else:
month -= 1
try:
dbg("trying to create date from values day=%d, month=%d, year=%d" % (day,month,year))
dateHandler = wx.DateTimeFromDMY(day,month,year)
dbg("succeeded")
dateOk = True
except:
dbg('cannot convert string to valid date')
dateOk = False
if not dateOk:
valid = False
if valid:
# wxDateTime doesn't take kindly to leading/trailing spaces when parsing,
# so we eliminate them here:
timeStr = text[self._dateExtent+1:].strip() ## time portion of the string
if timeStr:
dbg('timeStr: "%s"' % timeStr)
try:
checkTime = dateHandler.ParseTime(timeStr)
valid = checkTime == len(timeStr)
except:
valid = False
if not valid:
dbg('cannot convert string to valid time')
if valid: dbg('valid date')
dbg(indent=0)
return valid
def _validateTime(self, candidate=None):
""" Validate the current time value using the provided Regex filter.
Generally used for character types.BufferType
"""
dbg('MaskedEditMixin::_validateTime', indent=1)
# wxDateTime doesn't take kindly to leading/trailing spaces when parsing,
# so we eliminate them here:
if candidate is None: value = self._GetValue().strip()
else: value = candidate.strip()
dbg('value = "%s"' % value)
valid = True # assume True until proven otherwise
dateHandler = wx.DateTime_Today()
try:
checkTime = dateHandler.ParseTime(value)
dbg('checkTime:', checkTime, 'len(value)', len(value))
valid = checkTime == len(value)
except:
valid = False
if not valid:
dbg('cannot convert string to valid time')
if valid: dbg('valid time')
dbg(indent=0)
return valid
def _OnKillFocus(self,event):
""" Handler for EVT_KILL_FOCUS event.
"""
dbg('MaskedEditMixin::_OnKillFocus', 'isDate=',self._isDate, indent=1)
if self._mask and self._IsEditable():
self._AdjustField(self._GetInsertionPoint())
self._CheckValid() ## Call valid handler
self._LostFocus() ## Provided for subclass use
event.Skip()
dbg(indent=0)
def _fixSelection(self):
"""
This gets called after the TAB traversal selection is made, if the
focus event was due to this, but before the EVT_LEFT_* events if
the focus shift was due to a mouse event.
The trouble is that, a priori, there's no explicit notification of
why the focus event we received. However, the whole reason we need to
do this is because the default behavior on TAB traveral in a wxTextCtrl is
now to select the entire contents of the window, something we don't want.
So we can *now* test the selection range, and if it's "the whole text"
we can assume the cause, change the insertion point to the start of
the control, and deselect.
"""
dbg('MaskedEditMixin::_fixSelection', indent=1)
if not self._mask or not self._IsEditable():
dbg(indent=0)
return
sel_start, sel_to = self._GetSelection()
dbg('sel_start, sel_to:', sel_start, sel_to, 'self.IsEmpty()?', self.IsEmpty())
if( sel_start == 0 and sel_to >= len( self._mask ) #(can be greater in numeric controls because of reserved space)
and (not self._ctrl_constraints._autoSelect or self.IsEmpty() or self.IsDefault() ) ):
# This isn't normally allowed, and so assume we got here by the new
# "tab traversal" behavior, so we need to reset the selection
# and insertion point:
dbg('entire text selected; resetting selection to start of control')
self._goHome()
field = self._FindField(self._GetInsertionPoint())
edit_start, edit_end = field._extent
if field._selectOnFieldEntry:
self._SetInsertionPoint(edit_start)
self._SetSelection(edit_start, edit_end)
elif field._insertRight:
self._SetInsertionPoint(edit_end)
self._SetSelection(edit_end, edit_end)
elif (self._isFloat or self._isInt):
text, signpos, right_signpos = self._getAbsValue()
if text is None or text == self._template:
integer = self._fields[0]
edit_start, edit_end = integer._extent
if integer._selectOnFieldEntry:
dbg('select on field entry:')
self._SetInsertionPoint(edit_start)
self._SetSelection(edit_start, edit_end)
elif integer._insertRight:
dbg('moving insertion point to end')
self._SetInsertionPoint(edit_end)
self._SetSelection(edit_end, edit_end)
else:
dbg('numeric ctrl is empty; start at beginning after sign')
self._SetInsertionPoint(signpos+1) ## Move past minus sign space if signed
self._SetSelection(signpos+1, signpos+1)
elif sel_start > self._goEnd(getPosOnly=True):
dbg('cursor beyond the end of the user input; go to end of it')
self._goEnd()
else:
dbg('sel_start, sel_to:', sel_start, sel_to, 'self._masklength:', self._masklength)
dbg(indent=0)
def _Keypress(self,key):
""" Method provided to override OnChar routine. Return False to force
a skip of the 'normal' OnChar process. Called before class OnChar.
"""
return True
def _LostFocus(self):
""" Method provided for subclasses. _LostFocus() is called after
the class processes its EVT_KILL_FOCUS event code.
"""
pass
def _OnDoubleClick(self, event):
""" selects field under cursor on dclick."""
pos = self._GetInsertionPoint()
field = self._FindField(pos)
start, end = field._extent
self._SetInsertionPoint(start)
self._SetSelection(start, end)
def _Change(self):
""" Method provided for subclasses. Called by internal EVT_TEXT
handler. Return False to override the class handler, True otherwise.
"""
return True
def _Cut(self):
"""
Used to override the default Cut() method in base controls, instead
copying the selection to the clipboard and then blanking the selection,
leaving only the mask in the selected area behind.
Note: _Cut (read "undercut" ;-) must be called from a Cut() override in the
derived control because the mixin functions can't override a method of
a sibling class.
"""
dbg("MaskedEditMixin::_Cut", indent=1)
value = self._GetValue()
dbg('current value: "%s"' % value)
sel_start, sel_to = self._GetSelection() ## check for a range of selected text
dbg('selected text: "%s"' % value[sel_start:sel_to].strip())
do = wxTextDataObject()
do.SetText(value[sel_start:sel_to].strip())
wxTheClipboard.Open()
wxTheClipboard.SetData(do)
wxTheClipboard.Close()
if sel_to - sel_start != 0:
self._OnErase()
dbg(indent=0)
# WS Note: overriding Copy is no longer necessary given that you
# can no longer select beyond the last non-empty char in the control.
#
## def _Copy( self ):
## """
## Override the wxTextCtrl's .Copy function, with our own
## that does validation. Need to strip trailing spaces.
## """
## sel_start, sel_to = self._GetSelection()
## select_len = sel_to - sel_start
## textval = wxTextCtrl._GetValue(self)
##
## do = wxTextDataObject()
## do.SetText(textval[sel_start:sel_to].strip())
## wxTheClipboard.Open()
## wxTheClipboard.SetData(do)
## wxTheClipboard.Close()
def _getClipboardContents( self ):
""" Subroutine for getting the current contents of the clipboard.
"""
do = wxTextDataObject()
wxTheClipboard.Open()
success = wxTheClipboard.GetData(do)
wxTheClipboard.Close()
if not success:
return None
else:
# Remove leading and trailing spaces before evaluating contents
return do.GetText().strip()
def _validatePaste(self, paste_text, sel_start, sel_to, raise_on_invalid=False):
"""
Used by paste routine and field choice validation to see
if a given slice of paste text is legal for the area in question:
returns validity, replacement text, and extent of paste in
template.
"""
dbg(suspend=1)
dbg('MaskedEditMixin::_validatePaste("%(paste_text)s", %(sel_start)d, %(sel_to)d), raise_on_invalid? %(raise_on_invalid)d' % locals(), indent=1)
select_length = sel_to - sel_start
maxlength = select_length
dbg('sel_to - sel_start:', maxlength)
if maxlength == 0:
maxlength = self._masklength - sel_start
item = 'control'
else:
item = 'selection'
dbg('maxlength:', maxlength)
length_considered = len(paste_text)
if length_considered > maxlength:
dbg('paste text will not fit into the %s:' % item, indent=0)
if raise_on_invalid:
dbg(indent=0, suspend=0)
if item == 'control':
raise ValueError('"%s" will not fit into the control "%s"' % (paste_text, self.name))
else:
raise ValueError('"%s" will not fit into the selection' % paste_text)
else:
dbg(indent=0, suspend=0)
return False, None, None
text = self._template
dbg('length_considered:', length_considered)
valid_paste = True
replacement_text = ""
replace_to = sel_start
i = 0
while valid_paste and i < length_considered and replace_to < self._masklength:
if paste_text[i:] == self._template[replace_to:length_considered]:
# remainder of paste matches template; skip char-by-char analysis
dbg('remainder paste_text[%d:] (%s) matches template[%d:%d]' % (i, paste_text[i:], replace_to, length_considered))
replacement_text += paste_text[i:]
replace_to = i = length_considered
continue
# else:
char = paste_text[i]
field = self._FindField(replace_to)
if not field._compareNoCase:
if field._forceupper: char = char.upper()
elif field._forcelower: char = char.lower()
dbg('char:', "'"+char+"'", 'i =', i, 'replace_to =', replace_to)
dbg('self._isTemplateChar(%d)?' % replace_to, self._isTemplateChar(replace_to))
if not self._isTemplateChar(replace_to) and self._isCharAllowed( char, replace_to, allowAutoSelect=False, ignoreInsertRight=True):
replacement_text += char
dbg("not template(%(replace_to)d) and charAllowed('%(char)s',%(replace_to)d)" % locals())
dbg("replacement_text:", '"'+replacement_text+'"')
i += 1
replace_to += 1
elif( char == self._template[replace_to]
or (self._signOk and
( (i == 0 and (char == '-' or (self._useParens and char == '(')))
or (i == self._masklength - 1 and self._useParens and char == ')') ) ) ):
replacement_text += char
dbg("'%(char)s' == template(%(replace_to)d)" % locals())
dbg("replacement_text:", '"'+replacement_text+'"')
i += 1
replace_to += 1
else:
next_entry = self._findNextEntry(replace_to, adjustInsert=False)
if next_entry == replace_to:
valid_paste = False
else:
replacement_text += self._template[replace_to:next_entry]
dbg("skipping template; next_entry =", next_entry)
dbg("replacement_text:", '"'+replacement_text+'"')
replace_to = next_entry # so next_entry will be considered on next loop
if not valid_paste and raise_on_invalid:
dbg('raising exception', indent=0, suspend=0)
raise ValueError('"%s" cannot be inserted into the control "%s"' % (paste_text, self.name))
elif i < len(paste_text):
valid_paste = False
if raise_on_invalid:
dbg('raising exception', indent=0, suspend=0)
raise ValueError('"%s" will not fit into the control "%s"' % (paste_text, self.name))
dbg('valid_paste?', valid_paste)
if valid_paste:
dbg('replacement_text: "%s"' % replacement_text, 'replace to:', replace_to)
dbg(indent=0, suspend=0)
return valid_paste, replacement_text, replace_to
def _Paste( self, value=None, raise_on_invalid=False, just_return_value=False ):
"""
Used to override the base control's .Paste() function,
with our own that does validation.
Note: _Paste must be called from a Paste() override in the
derived control because the mixin functions can't override a
method of a sibling class.
"""
dbg('MaskedEditMixin::_Paste (value = "%s")' % value, indent=1)
if value is None:
paste_text = self._getClipboardContents()
else:
paste_text = value
if paste_text is not None:
dbg('paste text: "%s"' % paste_text)
# (conversion will raise ValueError if paste isn't legal)
sel_start, sel_to = self._GetSelection()
dbg('selection:', (sel_start, sel_to))
# special case: handle allowInsert fields properly
field = self._FindField(sel_start)
edit_start, edit_end = field._extent
new_pos = None
if field._allowInsert and sel_to <= edit_end and sel_start + len(paste_text) < edit_end:
new_pos = sel_start + len(paste_text) # store for subsequent positioning
paste_text = paste_text + self._GetValue()[sel_to:edit_end].rstrip()
dbg('paste within insertable field; adjusted paste_text: "%s"' % paste_text, 'end:', edit_end)
sel_to = sel_start + len(paste_text)
# Another special case: paste won't fit, but it's a right-insert field where entire
# non-empty value is selected, and there's room if the selection is expanded leftward:
if( len(paste_text) > sel_to - sel_start
and field._insertRight
and sel_start > edit_start
and sel_to >= edit_end
and not self._GetValue()[edit_start:sel_start].strip() ):
# text won't fit within selection, but left of selection is empty;
# check to see if we can expand selection to accomodate the value:
empty_space = sel_start - edit_start
amount_needed = len(paste_text) - (sel_to - sel_start)
if amount_needed <= empty_space:
sel_start -= amount_needed
dbg('expanded selection to:', (sel_start, sel_to))
# another special case: deal with signed values properly:
if self._signOk:
signedvalue, signpos, right_signpos = self._getSignedValue()
paste_signpos = paste_text.find('-')
if paste_signpos == -1:
paste_signpos = paste_text.find('(')
# if paste text will result in signed value:
## dbg('paste_signpos != -1?', paste_signpos != -1)
## dbg('sel_start:', sel_start, 'signpos:', signpos)
## dbg('field._insertRight?', field._insertRight)
## dbg('sel_start - len(paste_text) >= signpos?', sel_start - len(paste_text) <= signpos)
if paste_signpos != -1 and (sel_start <= signpos
or (field._insertRight and sel_start - len(paste_text) <= signpos)):
signed = True
else:
signed = False
# remove "sign" from paste text, so we can auto-adjust for sign type after paste:
paste_text = paste_text.replace('-', ' ').replace('(',' ').replace(')','')
dbg('unsigned paste text: "%s"' % paste_text)
else:
signed = False
# another special case: deal with insert-right fields when selection is empty and
# cursor is at end of field:
## dbg('field._insertRight?', field._insertRight)
## dbg('sel_start == edit_end?', sel_start == edit_end)
## dbg('sel_start', sel_start, 'sel_to', sel_to)
if field._insertRight and sel_start == edit_end and sel_start == sel_to:
sel_start -= len(paste_text)
if sel_start < 0:
sel_start = 0
dbg('adjusted selection:', (sel_start, sel_to))
try:
valid_paste, replacement_text, replace_to = self._validatePaste(paste_text, sel_start, sel_to, raise_on_invalid)
except:
dbg('exception thrown', indent=0)
raise
if not valid_paste:
dbg('paste text not legal for the selection or portion of the control following the cursor;')
if not wx.Validator_IsSilent():
wx.Bell()
dbg(indent=0)
return False
# else...
text = self._eraseSelection()
new_text = text[:sel_start] + replacement_text + text[replace_to:]
if new_text:
new_text = string.ljust(new_text,self._masklength)
if signed:
new_text, signpos, right_signpos = self._getSignedValue(candidate=new_text)
if new_text:
if self._useParens:
new_text = new_text[:signpos] + '(' + new_text[signpos+1:right_signpos] + ')' + new_text[right_signpos+1:]
else:
new_text = new_text[:signpos] + '-' + new_text[signpos+1:]
if not self._isNeg:
self._isNeg = 1
dbg("new_text:", '"'+new_text+'"')
if not just_return_value:
if new_text == '':
self.ClearValue()
else:
wx.CallAfter(self._SetValue, new_text)
if new_pos is None:
new_pos = sel_start + len(replacement_text)
wx.CallAfter(self._SetInsertionPoint, new_pos)
else:
dbg(indent=0)
return new_text
elif just_return_value:
dbg(indent=0)
return self._GetValue()
dbg(indent=0)
def _Undo(self):
""" Provides an Undo() method in base controls. """
dbg("MaskedEditMixin::_Undo", indent=1)
value = self._GetValue()
prev = self._prevValue
dbg('current value: "%s"' % value)
dbg('previous value: "%s"' % prev)
if prev is None:
dbg('no previous value', indent=0)
return
elif value != prev:
# Determine what to select: (relies on fixed-length strings)
# (This is a lot harder than it would first appear, because
# of mask chars that stay fixed, and so break up the "diff"...)
# Determine where they start to differ:
i = 0
length = len(value) # (both are same length in masked control)
while( value[:i] == prev[:i] ):
i += 1
sel_start = i - 1
# handle signed values carefully, so undo from signed to unsigned or vice-versa
# works properly:
if self._signOk:
text, signpos, right_signpos = self._getSignedValue(candidate=prev)
if self._useParens:
if prev[signpos] == '(' and prev[right_signpos] == ')':
self._isNeg = True
else:
self._isNeg = False
# eliminate source of "far-end" undo difference if using balanced parens:
value = value.replace(')', ' ')
prev = prev.replace(')', ' ')
elif prev[signpos] == '-':
self._isNeg = True
else:
self._isNeg = False
# Determine where they stop differing in "undo" result:
sm = difflib.SequenceMatcher(None, a=value, b=prev)
i, j, k = sm.find_longest_match(sel_start, length, sel_start, length)
dbg('i,j,k = ', (i,j,k), 'value[i:i+k] = "%s"' % value[i:i+k], 'prev[j:j+k] = "%s"' % prev[j:j+k] )
if k == 0: # no match found; select to end
sel_to = length
else:
code_5tuples = sm.get_opcodes()
for op, i1, i2, j1, j2 in code_5tuples:
dbg("%7s value[%d:%d] (%s) prev[%d:%d] (%s)" %
(op, i1, i2, value[i1:i2], j1, j2, prev[j1:j2]))
diff_found = False
# look backward through operations needed to produce "previous" value;
# first change wins:
for next_op in range(len(code_5tuples)-1, -1, -1):
op, i1, i2, j1, j2 = code_5tuples[next_op]
dbg('value[i1:i2]: "%s"' % value[i1:i2], 'template[i1:i2] "%s"' % self._template[i1:i2])
if op == 'insert' and prev[j1:j2] != self._template[j1:j2]:
dbg('insert found: selection =>', (j1, j2))
sel_start = j1
sel_to = j2
diff_found = True
break
elif op == 'delete' and value[i1:i2] != self._template[i1:i2]:
field = self._FindField(i2)
edit_start, edit_end = field._extent
if field._insertRight and i2 == edit_end:
sel_start = i2
sel_to = i2
else:
sel_start = i1
sel_to = j1
dbg('delete found: selection =>', (sel_start, sel_to))
diff_found = True
break
elif op == 'replace':
dbg('replace found: selection =>', (j1, j2))
sel_start = j1
sel_to = j2
diff_found = True
break
if diff_found:
# now go forwards, looking for earlier changes:
for next_op in range(len(code_5tuples)):
op, i1, i2, j1, j2 = code_5tuples[next_op]
field = self._FindField(i1)
if op == 'equal':
continue
elif op == 'replace':
dbg('setting sel_start to', i1)
sel_start = i1
break
elif op == 'insert' and not value[i1:i2]:
dbg('forward %s found' % op)
if prev[j1:j2].strip():
dbg('item to insert non-empty; setting sel_start to', j1)
sel_start = j1
break
elif not field._insertRight:
dbg('setting sel_start to inserted space:', j1)
sel_start = j1
break
elif op == 'delete' and field._insertRight and not value[i1:i2].lstrip():
continue
else:
# we've got what we need
break
if not diff_found:
dbg('no insert,delete or replace found (!)')
# do "left-insert"-centric processing of difference based on l.c.s.:
if i == j and j != sel_start: # match starts after start of selection
sel_to = sel_start + (j-sel_start) # select to start of match
else:
sel_to = j # (change ends at j)
# There are several situations where the calculated difference is
# not what we want to select. If changing sign, or just adding
# group characters, we really don't want to highlight the characters
# changed, but instead leave the cursor where it is.
# Also, there a situations in which the difference can be ambiguous;
# Consider:
#
# current value: 11234
# previous value: 1111234
#
# Where did the cursor actually lie and which 1s were selected on the delete
# operation?
#
# Also, difflib can "get it wrong;" Consider:
#
# current value: " 128.66"
# previous value: " 121.86"
#
# difflib produces the following opcodes, which are sub-optimal:
# equal value[0:9] ( 12) prev[0:9] ( 12)
# insert value[9:9] () prev[9:11] (1.)
# equal value[9:10] (8) prev[11:12] (8)
# delete value[10:11] (.) prev[12:12] ()
# equal value[11:12] (6) prev[12:13] (6)
# delete value[12:13] (6) prev[13:13] ()
#
# This should have been:
# equal value[0:9] ( 12) prev[0:9] ( 12)
# replace value[9:11] (8.6) prev[9:11] (1.8)
# equal value[12:13] (6) prev[12:13] (6)
#
# But it didn't figure this out!
#
# To get all this right, we use the previous selection recorded to help us...
if (sel_start, sel_to) != self._prevSelection:
dbg('calculated selection', (sel_start, sel_to), "doesn't match previous", self._prevSelection)
prev_sel_start, prev_sel_to = self._prevSelection
field = self._FindField(sel_start)
if self._signOk and (self._prevValue[sel_start] in ('-', '(', ')')
or self._curValue[sel_start] in ('-', '(', ')')):
# change of sign; leave cursor alone...
sel_start, sel_to = self._prevSelection
elif field._groupdigits and (self._curValue[sel_start:sel_to] == field._groupChar
or self._prevValue[sel_start:sel_to] == field._groupChar):
# do not highlight grouping changes
sel_start, sel_to = self._prevSelection
else:
calc_select_len = sel_to - sel_start
prev_select_len = prev_sel_to - prev_sel_start
dbg('sel_start == prev_sel_start', sel_start == prev_sel_start)
dbg('sel_to > prev_sel_to', sel_to > prev_sel_to)
if prev_select_len >= calc_select_len:
# old selection was bigger; trust it:
sel_start, sel_to = self._prevSelection
elif( sel_to > prev_sel_to # calculated select past last selection
and prev_sel_to < len(self._template) # and prev_sel_to not at end of control
and sel_to == len(self._template) ): # and calculated selection goes to end of control
i, j, k = sm.find_longest_match(prev_sel_to, length, prev_sel_to, length)
dbg('i,j,k = ', (i,j,k), 'value[i:i+k] = "%s"' % value[i:i+k], 'prev[j:j+k] = "%s"' % prev[j:j+k] )
if k > 0:
# difflib must not have optimized opcodes properly;
sel_to = j
else:
# look for possible ambiguous diff:
# if last change resulted in no selection, test from resulting cursor position:
if prev_sel_start == prev_sel_to:
calc_select_len = sel_to - sel_start
field = self._FindField(prev_sel_start)
# determine which way to search from last cursor position for ambiguous change:
if field._insertRight:
test_sel_start = prev_sel_start
test_sel_to = prev_sel_start + calc_select_len
else:
test_sel_start = prev_sel_start - calc_select_len
test_sel_to = prev_sel_start
else:
test_sel_start, test_sel_to = prev_sel_start, prev_sel_to
dbg('test selection:', (test_sel_start, test_sel_to))
dbg('calc change: "%s"' % self._prevValue[sel_start:sel_to])
dbg('test change: "%s"' % self._prevValue[test_sel_start:test_sel_to])
# if calculated selection spans characters, and same characters
# "before" the previous insertion point are present there as well,
# select the ones related to the last known selection instead.
if( sel_start != sel_to
and test_sel_to < len(self._template)
and self._prevValue[test_sel_start:test_sel_to] == self._prevValue[sel_start:sel_to] ):
sel_start, sel_to = test_sel_start, test_sel_to
dbg('sel_start, sel_to:', sel_start, sel_to)
dbg('previous value: "%s"' % self._prevValue)
self._SetValue(self._prevValue)
self._SetInsertionPoint(sel_start)
self._SetSelection(sel_start, sel_to)
else:
dbg('no difference between previous value')
dbg(indent=0)
def _OnClear(self, event):
""" Provides an action for context menu delete operation """
self.ClearValue()
def _OnContextMenu(self, event):
dbg('MaskedEditMixin::OnContextMenu()', indent=1)
menu = wxMenu()
menu.Append(wxID_UNDO, "Undo", "")
menu.AppendSeparator()
menu.Append(wxID_CUT, "Cut", "")
menu.Append(wxID_COPY, "Copy", "")
menu.Append(wxID_PASTE, "Paste", "")
menu.Append(wxID_CLEAR, "Delete", "")
menu.AppendSeparator()
menu.Append(wxID_SELECTALL, "Select All", "")
EVT_MENU(menu, wxID_UNDO, self._OnCtrl_Z)
EVT_MENU(menu, wxID_CUT, self._OnCtrl_X)
EVT_MENU(menu, wxID_COPY, self._OnCtrl_C)
EVT_MENU(menu, wxID_PASTE, self._OnCtrl_V)
EVT_MENU(menu, wxID_CLEAR, self._OnClear)
EVT_MENU(menu, wxID_SELECTALL, self._OnCtrl_A)
# ## WSS: The base control apparently handles
# enable/disable of wID_CUT, wxID_COPY, wxID_PASTE
# and wxID_CLEAR menu items even if the menu is one
# we created. However, it doesn't do undo properly,
# so we're keeping track of previous values ourselves.
# Therefore, we have to override the default update for
# that item on the menu:
EVT_UPDATE_UI(self, wxID_UNDO, self._UndoUpdateUI)
self._contextMenu = menu
self.PopupMenu(menu, event.GetPosition())
menu.Destroy()
self._contextMenu = None
dbg(indent=0)
def _UndoUpdateUI(self, event):
if self._prevValue is None or self._prevValue == self._curValue:
self._contextMenu.Enable(wxID_UNDO, False)
else:
self._contextMenu.Enable(wxID_UNDO, True)
## ---------- ---------- ---------- ---------- ---------- ---------- ----------
class MaskedTextCtrl( wx.TextCtrl, MaskedEditMixin ):
"""
This is the primary derivation from MaskedEditMixin. It provides
a general masked text control that can be configured with different
masks.
"""
def __init__( self, parent, id=-1, value = '',
pos = wx.DefaultPosition,
size = wx.DefaultSize,
style = wx.TE_PROCESS_TAB,
validator=wx.DefaultValidator, ## placeholder provided for data-transfer logic
name = 'maskedTextCtrl',
setupEventHandling = True, ## setup event handling by default
**kwargs):
wx.TextCtrl.__init__(self, parent, id, value='',
pos=pos, size = size,
style=style, validator=validator,
name=name)
self.controlInitialized = True
MaskedEditMixin.__init__( self, name, **kwargs )
self._SetInitialValue(value)
if setupEventHandling:
## Setup event handlers
self.Bind(wx.EVT_SET_FOCUS, self._OnFocus ) ## defeat automatic full selection
self.Bind(wx.EVT_KILL_FOCUS, self._OnKillFocus ) ## run internal validator
self.Bind(wx.EVT_LEFT_DCLICK, self._OnDoubleClick) ## select field under cursor on dclick
self.Bind(wx.EVT_RIGHT_UP, self._OnContextMenu ) ## bring up an appropriate context menu
self.Bind(wx.EVT_KEY_DOWN, self._OnKeyDown ) ## capture control events not normally seen, eg ctrl-tab.
self.Bind(wx.EVT_CHAR, self._OnChar ) ## handle each keypress
self.Bind(wx.EVT_TEXT, self._OnTextChange ) ## color control appropriately & keep
## track of previous value for undo
def __repr__(self):
return "<MaskedTextCtrl: %s>" % self.GetValue()
def _GetSelection(self):
"""
Allow mixin to get the text selection of this control.
REQUIRED by any class derived from MaskedEditMixin.
"""
return self.GetSelection()
def _SetSelection(self, sel_start, sel_to):
"""
Allow mixin to set the text selection of this control.
REQUIRED by any class derived from MaskedEditMixin.
"""
## dbg("MaskedTextCtrl::_SetSelection(%(sel_start)d, %(sel_to)d)" % locals())
return self.SetSelection( sel_start, sel_to )
def SetSelection(self, sel_start, sel_to):
"""
This is just for debugging...
"""
dbg("MaskedTextCtrl::SetSelection(%(sel_start)d, %(sel_to)d)" % locals())
wx.TextCtrl.SetSelection(self, sel_start, sel_to)
def _GetInsertionPoint(self):
return self.GetInsertionPoint()
def _SetInsertionPoint(self, pos):
## dbg("MaskedTextCtrl::_SetInsertionPoint(%(pos)d)" % locals())
self.SetInsertionPoint(pos)
def SetInsertionPoint(self, pos):
"""
This is just for debugging...
"""
dbg("MaskedTextCtrl::SetInsertionPoint(%(pos)d)" % locals())
wx.TextCtrl.SetInsertionPoint(self, pos)
def _GetValue(self):
"""
Allow mixin to get the raw value of the control with this function.
REQUIRED by any class derived from MaskedEditMixin.
"""
return self.GetValue()
def _SetValue(self, value):
"""
Allow mixin to set the raw value of the control with this function.
REQUIRED by any class derived from MaskedEditMixin.
"""
dbg('MaskedTextCtrl::_SetValue("%(value)s")' % locals(), indent=1)
# Record current selection and insertion point, for undo
self._prevSelection = self._GetSelection()
self._prevInsertionPoint = self._GetInsertionPoint()
wx.TextCtrl.SetValue(self, value)
dbg(indent=0)
def SetValue(self, value):
"""
This function redefines the externally accessible .SetValue to be
a smart "paste" of the text in question, so as not to corrupt the
masked control. NOTE: this must be done in the class derived
from the base wx control.
"""
dbg('MaskedTextCtrl::SetValue = "%s"' % value, indent=1)
if not self._mask:
wx.TextCtrl.SetValue(self, value) # revert to base control behavior
return
# empty previous contents, replacing entire value:
self._SetInsertionPoint(0)
self._SetSelection(0, self._masklength)
if self._signOk and self._useParens:
signpos = value.find('-')
if signpos != -1:
value = value[:signpos] + '(' + value[signpos+1:].strip() + ')'
elif value.find(')') == -1 and len(value) < self._masklength:
value += ' ' # add place holder for reserved space for right paren
if( len(value) < self._masklength # value shorter than control
and (self._isFloat or self._isInt) # and it's a numeric control
and self._ctrl_constraints._alignRight ): # and it's a right-aligned control
dbg('len(value)', len(value), ' < self._masklength', self._masklength)
# try to intelligently "pad out" the value to the right size:
value = self._template[0:self._masklength - len(value)] + value
if self._isFloat and value.find('.') == -1:
value = value[1:]
dbg('padded value = "%s"' % value)
# make SetValue behave the same as if you had typed the value in:
try:
value = self._Paste(value, raise_on_invalid=True, just_return_value=True)
if self._isFloat:
self._isNeg = False # (clear current assumptions)
value = self._adjustFloat(value)
elif self._isInt:
self._isNeg = False # (clear current assumptions)
value = self._adjustInt(value)
elif self._isDate and not self.IsValid(value) and self._4digityear:
value = self._adjustDate(value, fixcentury=True)
except ValueError:
# If date, year might be 2 digits vs. 4; try adjusting it:
if self._isDate and self._4digityear:
dateparts = value.split(' ')
dateparts[0] = self._adjustDate(dateparts[0], fixcentury=True)
value = string.join(dateparts, ' ')
dbg('adjusted value: "%s"' % value)
value = self._Paste(value, raise_on_invalid=True, just_return_value=True)
else:
dbg('exception thrown', indent=0)
raise
self._SetValue(value)
## dbg('queuing insertion after .SetValue', self._masklength)
wx.CallAfter(self._SetInsertionPoint, self._masklength)
wx.CallAfter(self._SetSelection, self._masklength, self._masklength)
dbg(indent=0)
def Clear(self):
""" Blanks the current control value by replacing it with the default value."""
dbg("MaskedTextCtrl::Clear - value reset to default value (template)")
if self._mask:
self.ClearValue()
else:
wx.TextCtrl.Clear(self) # else revert to base control behavior
def _Refresh(self):
"""
Allow mixin to refresh the base control with this function.
REQUIRED by any class derived from MaskedEditMixin.
"""
dbg('MaskedTextCtrl::_Refresh', indent=1)
wx.TextCtrl.Refresh(self)
dbg(indent=0)
def Refresh(self):
"""
This function redefines the externally accessible .Refresh() to
validate the contents of the masked control as it refreshes.
NOTE: this must be done in the class derived from the base wx control.
"""
dbg('MaskedTextCtrl::Refresh', indent=1)
self._CheckValid()
self._Refresh()
dbg(indent=0)
def _IsEditable(self):
"""
Allow mixin to determine if the base control is editable with this function.
REQUIRED by any class derived from MaskedEditMixin.
"""
return wx.TextCtrl.IsEditable(self)
def Cut(self):
"""
This function redefines the externally accessible .Cut to be
a smart "erase" of the text in question, so as not to corrupt the
masked control. NOTE: this must be done in the class derived
from the base wx control.
"""
if self._mask:
self._Cut() # call the mixin's Cut method
else:
wx.TextCtrl.Cut(self) # else revert to base control behavior
def Paste(self):
"""
This function redefines the externally accessible .Paste to be
a smart "paste" of the text in question, so as not to corrupt the
masked control. NOTE: this must be done in the class derived
from the base wx control.
"""
if self._mask:
self._Paste() # call the mixin's Paste method
else:
wx.TextCtrl.Paste(self, value) # else revert to base control behavior
def Undo(self):
"""
This function defines the undo operation for the control. (The default
undo is 1-deep.)
"""
if self._mask:
self._Undo()
else:
wx.TextCtrl.Undo(self) # else revert to base control behavior
def IsModified(self):
"""
This function overrides the raw wxTextCtrl method, because the
masked edit mixin uses SetValue to change the value, which doesn't
modify the state of this attribute. So, we keep track on each
keystroke to see if the value changes, and if so, it's been
modified.
"""
return wx.TextCtrl.IsModified(self) or self.modified
def _CalcSize(self, size=None):
"""
Calculate automatic size if allowed; use base mixin function.
"""
return self._calcSize(size)
## ---------- ---------- ---------- ---------- ---------- ---------- ----------
## Because calling SetSelection programmatically does not fire EVT_COMBOBOX
## events, we have to do it ourselves when we auto-complete.
class MaskedComboBoxSelectEvent(wx.PyCommandEvent):
def __init__(self, id, selection = 0, object=None):
wx.PyCommandEvent.__init__(self, wx.wxEVT_COMMAND_COMBOBOX_SELECTED, id)
self.__selection = selection
self.SetEventObject(object)
def GetSelection(self):
"""Retrieve the value of the control at the time
this event was generated."""
return self.__selection
class MaskedComboBox( wx.ComboBox, MaskedEditMixin ):
"""
This masked edit control adds the ability to use a masked input
on a combobox, and do auto-complete of such values.
"""
def __init__( self, parent, id=-1, value = '',
pos = wx.DefaultPosition,
size = wx.DefaultSize,
choices = [],
style = wx.CB_DROPDOWN,
validator = wx.DefaultValidator,
name = "maskedComboBox",
setupEventHandling = True, ## setup event handling by default):
**kwargs):
# This is necessary, because wxComboBox currently provides no
# method for determining later if this was specified in the
# constructor for the control...
self.__readonly = style & wx.CB_READONLY == wx.CB_READONLY
kwargs['choices'] = choices ## set up maskededit to work with choice list too
## Since combobox completion is case-insensitive, always validate same way
if not kwargs.has_key('compareNoCase'):
kwargs['compareNoCase'] = True
MaskedEditMixin.__init__( self, name, **kwargs )
self._choices = self._ctrl_constraints._choices
dbg('self._choices:', self._choices)
if self._ctrl_constraints._alignRight:
choices = [choice.rjust(self._masklength) for choice in choices]
else:
choices = [choice.ljust(self._masklength) for choice in choices]
wx.ComboBox.__init__(self, parent, id, value='',
pos=pos, size = size,
choices=choices, style=style|wx.WANTS_CHARS,
validator=validator,
name=name)
self.controlInitialized = True
# Set control font - fixed width by default
self._setFont()
if self._autofit:
self.SetClientSize(self._CalcSize())
if value:
# ensure value is width of the mask of the control:
if self._ctrl_constraints._alignRight:
value = value.rjust(self._masklength)
else:
value = value.ljust(self._masklength)
if self.__readonly:
self.SetStringSelection(value)
else:
self._SetInitialValue(value)
self._SetKeycodeHandler(wx.WXK_UP, self.OnSelectChoice)
self._SetKeycodeHandler(wx.WXK_DOWN, self.OnSelectChoice)
if setupEventHandling:
## Setup event handlers
self.Bind(wx.EVT_SET_FOCUS, self._OnFocus ) ## defeat automatic full selection
self.Bind(wx.EVT_KILL_FOCUS, self._OnKillFocus ) ## run internal validator
self.Bind(wx.EVT_LEFT_DCLICK, self._OnDoubleClick) ## select field under cursor on dclick
self.Bind(wx.EVT_RIGHT_UP, self._OnContextMenu ) ## bring up an appropriate context menu
self.Bind(wx.EVT_CHAR, self._OnChar ) ## handle each keypress
self.Bind(wx.EVT_KEY_DOWN, self.OnKeyDown ) ## for special processing of up/down keys
self.Bind(wx.EVT_KEY_DOWN, self._OnKeyDown ) ## for processing the rest of the control keys
## (next in evt chain)
self.Bind(wx.EVT_TEXT, self._OnTextChange ) ## color control appropriately & keep
## track of previous value for undo
def __repr__(self):
return "<MaskedComboBox: %s>" % self.GetValue()
def _CalcSize(self, size=None):
"""
Calculate automatic size if allowed; augment base mixin function
to account for the selector button.
"""
size = self._calcSize(size)
return (size[0]+20, size[1])
def _GetSelection(self):
"""
Allow mixin to get the text selection of this control.
REQUIRED by any class derived from MaskedEditMixin.
"""
return self.GetMark()
def _SetSelection(self, sel_start, sel_to):
"""
Allow mixin to set the text selection of this control.
REQUIRED by any class derived from MaskedEditMixin.
"""
return self.SetMark( sel_start, sel_to )
def _GetInsertionPoint(self):
return self.GetInsertionPoint()
def _SetInsertionPoint(self, pos):
self.SetInsertionPoint(pos)
def _GetValue(self):
"""
Allow mixin to get the raw value of the control with this function.
REQUIRED by any class derived from MaskedEditMixin.
"""
return self.GetValue()
def _SetValue(self, value):
"""
Allow mixin to set the raw value of the control with this function.
REQUIRED by any class derived from MaskedEditMixin.
"""
# For wxComboBox, ensure that values are properly padded so that
# if varying length choices are supplied, they always show up
# in the window properly, and will be the appropriate length
# to match the mask:
if self._ctrl_constraints._alignRight:
value = value.rjust(self._masklength)
else:
value = value.ljust(self._masklength)
# Record current selection and insertion point, for undo
self._prevSelection = self._GetSelection()
self._prevInsertionPoint = self._GetInsertionPoint()
wx.ComboBox.SetValue(self, value)
# text change events don't always fire, so we check validity here
# to make certain formatting is applied:
self._CheckValid()
def SetValue(self, value):
"""
This function redefines the externally accessible .SetValue to be
a smart "paste" of the text in question, so as not to corrupt the
masked control. NOTE: this must be done in the class derived
from the base wx control.
"""
if not self._mask:
wx.ComboBox.SetValue(value) # revert to base control behavior
return
# else...
# empty previous contents, replacing entire value:
self._SetInsertionPoint(0)
self._SetSelection(0, self._masklength)
if( len(value) < self._masklength # value shorter than control
and (self._isFloat or self._isInt) # and it's a numeric control
and self._ctrl_constraints._alignRight ): # and it's a right-aligned control
# try to intelligently "pad out" the value to the right size:
value = self._template[0:self._masklength - len(value)] + value
dbg('padded value = "%s"' % value)
# For wxComboBox, ensure that values are properly padded so that
# if varying length choices are supplied, they always show up
# in the window properly, and will be the appropriate length
# to match the mask:
elif self._ctrl_constraints._alignRight:
value = value.rjust(self._masklength)
else:
value = value.ljust(self._masklength)
# make SetValue behave the same as if you had typed the value in:
try:
value = self._Paste(value, raise_on_invalid=True, just_return_value=True)
if self._isFloat:
self._isNeg = False # (clear current assumptions)
value = self._adjustFloat(value)
elif self._isInt:
self._isNeg = False # (clear current assumptions)
value = self._adjustInt(value)
elif self._isDate and not self.IsValid(value) and self._4digityear:
value = self._adjustDate(value, fixcentury=True)
except ValueError:
# If date, year might be 2 digits vs. 4; try adjusting it:
if self._isDate and self._4digityear:
dateparts = value.split(' ')
dateparts[0] = self._adjustDate(dateparts[0], fixcentury=True)
value = string.join(dateparts, ' ')
dbg('adjusted value: "%s"' % value)
value = self._Paste(value, raise_on_invalid=True, just_return_value=True)
else:
raise
self._SetValue(value)
## dbg('queuing insertion after .SetValue', self._masklength)
wx.CallAfter(self._SetInsertionPoint, self._masklength)
wx.CallAfter(self._SetSelection, self._masklength, self._masklength)
def _Refresh(self):
"""
Allow mixin to refresh the base control with this function.
REQUIRED by any class derived from MaskedEditMixin.
"""
wx.ComboBox.Refresh(self)
def Refresh(self):
"""
This function redefines the externally accessible .Refresh() to
validate the contents of the masked control as it refreshes.
NOTE: this must be done in the class derived from the base wx control.
"""
self._CheckValid()
self._Refresh()
def _IsEditable(self):
"""
Allow mixin to determine if the base control is editable with this function.
REQUIRED by any class derived from MaskedEditMixin.
"""
return not self.__readonly
def Cut(self):
"""
This function redefines the externally accessible .Cut to be
a smart "erase" of the text in question, so as not to corrupt the
masked control. NOTE: this must be done in the class derived
from the base wx control.
"""
if self._mask:
self._Cut() # call the mixin's Cut method
else:
wx.ComboBox.Cut(self) # else revert to base control behavior
def Paste(self):
"""
This function redefines the externally accessible .Paste to be
a smart "paste" of the text in question, so as not to corrupt the
masked control. NOTE: this must be done in the class derived
from the base wx control.
"""
if self._mask:
self._Paste() # call the mixin's Paste method
else:
wx.ComboBox.Paste(self) # else revert to base control behavior
def Undo(self):
"""
This function defines the undo operation for the control. (The default
undo is 1-deep.)
"""
if self._mask:
self._Undo()
else:
wx.ComboBox.Undo() # else revert to base control behavior
def Append( self, choice, clientData=None ):
"""
This function override is necessary so we can keep track of any additions to the list
of choices, because wxComboBox doesn't have an accessor for the choice list.
The code here is the same as in the SetParameters() mixin function, but is
done for the individual value as appended, so the list can be built incrementally
without speed penalty.
"""
if self._mask:
if type(choice) not in (types.StringType, types.UnicodeType):
raise TypeError('%s: choices must be a sequence of strings' % str(self._index))
elif not self.IsValid(choice):
raise ValueError('%s: "%s" is not a valid value for the control as specified.' % (str(self._index), choice))
if not self._ctrl_constraints._choices:
self._ctrl_constraints._compareChoices = []
self._ctrl_constraints._choices = []
self._hasList = True
compareChoice = choice.strip()
if self._ctrl_constraints._compareNoCase:
compareChoice = compareChoice.lower()
if self._ctrl_constraints._alignRight:
choice = choice.rjust(self._masklength)
else:
choice = choice.ljust(self._masklength)
if self._ctrl_constraints._fillChar != ' ':
choice = choice.replace(' ', self._fillChar)
dbg('updated choice:', choice)
self._ctrl_constraints._compareChoices.append(compareChoice)
self._ctrl_constraints._choices.append(choice)
self._choices = self._ctrl_constraints._choices # (for shorthand)
if( not self.IsValid(choice) and
(not self._ctrl_constraints.IsEmpty(choice) or
(self._ctrl_constraints.IsEmpty(choice) and self._ctrl_constraints._validRequired) ) ):
raise ValueError('"%s" is not a valid value for the control "%s" as specified.' % (choice, self.name))
wx.ComboBox.Append(self, choice, clientData)
def Clear( self ):
"""
This function override is necessary so we can keep track of any additions to the list
of choices, because wxComboBox doesn't have an accessor for the choice list.
"""
if self._mask:
self._choices = []
self._ctrl_constraints._autoCompleteIndex = -1
if self._ctrl_constraints._choices:
self.SetCtrlParameters(choices=[])
wx.ComboBox.Clear(self)
def SetCtrlParameters( self, **kwargs ):
"""
Override mixin's default SetCtrlParameters to detect changes in choice list, so
we can update the base control:
"""
MaskedEditMixin.SetCtrlParameters(self, **kwargs )
if( self.controlInitialized
and (kwargs.has_key('choices') or self._choices != self._ctrl_constraints._choices) ):
wx.ComboBox.Clear(self)
self._choices = self._ctrl_constraints._choices
for choice in self._choices:
wx.ComboBox.Append( self, choice )
def GetMark(self):
"""
This function is a hack to make up for the fact that wxComboBox has no
method for returning the selected portion of its edit control. It
works, but has the nasty side effect of generating lots of intermediate
events.
"""
dbg(suspend=1) # turn off debugging around this function
dbg('MaskedComboBox::GetMark', indent=1)
if self.__readonly:
dbg(indent=0)
return 0, 0 # no selection possible for editing
## sel_start, sel_to = wxComboBox.GetMark(self) # what I'd *like* to have!
sel_start = sel_to = self.GetInsertionPoint()
dbg("current sel_start:", sel_start)
value = self.GetValue()
dbg('value: "%s"' % value)
self._ignoreChange = True # tell _OnTextChange() to ignore next event (if any)
wx.ComboBox.Cut(self)
newvalue = self.GetValue()
dbg("value after Cut operation:", newvalue)
if newvalue != value: # something was selected; calculate extent
dbg("something selected")
sel_to = sel_start + len(value) - len(newvalue)
wx.ComboBox.SetValue(self, value) # restore original value and selection (still ignoring change)
wx.ComboBox.SetInsertionPoint(self, sel_start)
wx.ComboBox.SetMark(self, sel_start, sel_to)
self._ignoreChange = False # tell _OnTextChange() to pay attn again
dbg('computed selection:', sel_start, sel_to, indent=0, suspend=0)
return sel_start, sel_to
def SetSelection(self, index):
"""
Necessary for bookkeeping on choice selection, to keep current value
current.
"""
dbg('MaskedComboBox::SetSelection(%d)' % index)
if self._mask:
self._prevValue = self._curValue
self._curValue = self._choices[index]
self._ctrl_constraints._autoCompleteIndex = index
wx.ComboBox.SetSelection(self, index)
def OnKeyDown(self, event):
"""
This function is necessary because navigation and control key
events do not seem to normally be seen by the wxComboBox's
EVT_CHAR routine. (Tabs don't seem to be visible no matter
what... {:-( )
"""
if event.GetKeyCode() in self._nav + self._control:
self._OnChar(event)
return
else:
event.Skip() # let mixin default KeyDown behavior occur
def OnSelectChoice(self, event):
"""
This function appears to be necessary, because the processing done
on the text of the control somehow interferes with the combobox's
selection mechanism for the arrow keys.
"""
dbg('MaskedComboBox::OnSelectChoice', indent=1)
if not self._mask:
event.Skip()
return
value = self.GetValue().strip()
if self._ctrl_constraints._compareNoCase:
value = value.lower()
if event.GetKeyCode() == wx.WXK_UP:
direction = -1
else:
direction = 1
match_index, partial_match = self._autoComplete(
direction,
self._ctrl_constraints._compareChoices,
value,
self._ctrl_constraints._compareNoCase,
current_index = self._ctrl_constraints._autoCompleteIndex)
if match_index is not None:
dbg('setting selection to', match_index)
# issue appropriate event to outside:
self._OnAutoSelect(self._ctrl_constraints, match_index=match_index)
self._CheckValid()
keep_processing = False
else:
pos = self._adjustPos(self._GetInsertionPoint(), event.GetKeyCode())
field = self._FindField(pos)
if self.IsEmpty() or not field._hasList:
dbg('selecting 1st value in list')
self._OnAutoSelect(self._ctrl_constraints, match_index=0)
self._CheckValid()
keep_processing = False
else:
# attempt field-level auto-complete
dbg(indent=0)
keep_processing = self._OnAutoCompleteField(event)
dbg('keep processing?', keep_processing, indent=0)
return keep_processing
def _OnAutoSelect(self, field, match_index):
"""
Override mixin (empty) autocomplete handler, so that autocompletion causes
combobox to update appropriately.
"""
dbg('MaskedComboBox::OnAutoSelect', field._index, indent=1)
## field._autoCompleteIndex = match_index
if field == self._ctrl_constraints:
self.SetSelection(match_index)
dbg('issuing combo selection event')
self.GetEventHandler().ProcessEvent(
MaskedComboBoxSelectEvent( self.GetId(), match_index, self ) )
self._CheckValid()
dbg('field._autoCompleteIndex:', match_index)
dbg('self.GetSelection():', self.GetSelection())
dbg(indent=0)
def _OnReturn(self, event):
"""
For wxComboBox, it seems that if you hit return when the dropdown is
dropped, the event that dismisses the dropdown will also blank the
control, because of the implementation of wxComboBox. So here,
we look and if the selection is -1, and the value according to
(the base control!) is a value in the list, then we schedule a
programmatic wxComboBox.SetSelection() call to pick the appropriate
item in the list. (and then do the usual OnReturn bit.)
"""
dbg('MaskedComboBox::OnReturn', indent=1)
dbg('current value: "%s"' % self.GetValue(), 'current index:', self.GetSelection())
if self.GetSelection() == -1 and self.GetValue().lower().strip() in self._ctrl_constraints._compareChoices:
wx.CallAfter(self.SetSelection, self._ctrl_constraints._autoCompleteIndex)
event.m_keyCode = wx.WXK_TAB
event.Skip()
dbg(indent=0)
## ---------- ---------- ---------- ---------- ---------- ---------- ----------
class IpAddrCtrl( MaskedTextCtrl ):
"""
This class is a particular type of MaskedTextCtrl that accepts
and understands the semantics of IP addresses, reformats input
as you move from field to field, and accepts '.' as a navigation
character, so that typing an IP address can be done naturally.
"""
def __init__( self, parent, id=-1, value = '',
pos = wx.DefaultPosition,
size = wx.DefaultSize,
style = wx.TE_PROCESS_TAB,
validator = wx.DefaultValidator,
name = 'IpAddrCtrl',
setupEventHandling = True, ## setup event handling by default
**kwargs):
if not kwargs.has_key('mask'):
kwargs['mask'] = mask = "###.###.###.###"
if not kwargs.has_key('formatcodes'):
kwargs['formatcodes'] = 'F_Sr<'
if not kwargs.has_key('validRegex'):
kwargs['validRegex'] = "( \d| \d\d|(1\d\d|2[0-4]\d|25[0-5]))(\.( \d| \d\d|(1\d\d|2[0-4]\d|25[0-5]))){3}"
MaskedTextCtrl.__init__(
self, parent, id=id, value = value,
pos=pos, size=size,
style = style,
validator = validator,
name = name,
setupEventHandling = setupEventHandling,
**kwargs)
# set up individual field parameters as well:
field_params = {}
field_params['validRegex'] = "( | \d| \d |\d | \d\d|\d\d |\d \d|(1\d\d|2[0-4]\d|25[0-5]))"
# require "valid" string; this prevents entry of any value > 255, but allows
# intermediate constructions; overall control validation requires well-formatted value.
field_params['formatcodes'] = 'V'
if field_params:
for i in self._field_indices:
self.SetFieldParameters(i, **field_params)
# This makes '.' act like tab:
self._AddNavKey('.', handler=self.OnDot)
self._AddNavKey('>', handler=self.OnDot) # for "shift-."
def OnDot(self, event):
dbg('IpAddrCtrl::OnDot', indent=1)
pos = self._adjustPos(self._GetInsertionPoint(), event.GetKeyCode())
oldvalue = self.GetValue()
edit_start, edit_end, slice = self._FindFieldExtent(pos, getslice=True)
if not event.ShiftDown():
if pos > edit_start and pos < edit_end:
# clip data in field to the right of pos, if adjusting fields
# when not at delimeter; (assumption == they hit '.')
newvalue = oldvalue[:pos] + ' ' * (edit_end - pos) + oldvalue[edit_end:]
self._SetValue(newvalue)
self._SetInsertionPoint(pos)
dbg(indent=0)
return self._OnChangeField(event)
def GetAddress(self):
value = MaskedTextCtrl.GetValue(self)
return value.replace(' ','') # remove spaces from the value
def _OnCtrl_S(self, event):
dbg("IpAddrCtrl::_OnCtrl_S")
if self._demo:
print "value:", self.GetAddress()
return False
def SetValue(self, value):
dbg('IpAddrCtrl::SetValue(%s)' % str(value), indent=1)
if type(value) not in (types.StringType, types.UnicodeType):
dbg(indent=0)
raise ValueError('%s must be a string', str(value))
bValid = True # assume True
parts = value.split('.')
if len(parts) != 4:
bValid = False
else:
for i in range(4):
part = parts[i]
if not 0 <= len(part) <= 3:
bValid = False
break
elif part.strip(): # non-empty part
try:
j = string.atoi(part)
if not 0 <= j <= 255:
bValid = False
break
else:
parts[i] = '%3d' % j
except:
bValid = False
break
else:
# allow empty sections for SetValue (will result in "invalid" value,
# but this may be useful for initializing the control:
parts[i] = ' ' # convert empty field to 3-char length
if not bValid:
dbg(indent=0)
raise ValueError('value (%s) must be a string of form n.n.n.n where n is empty or in range 0-255' % str(value))
else:
dbg('parts:', parts)
value = string.join(parts, '.')
MaskedTextCtrl.SetValue(self, value)
dbg(indent=0)
## ---------- ---------- ---------- ---------- ---------- ---------- ----------
## these are helper subroutines:
def movetofloat( origvalue, fmtstring, neg, addseparators=False, sepchar = ',',fillchar=' '):
""" addseparators = add separator character every three numerals if True
"""
fmt0 = fmtstring.split('.')
fmt1 = fmt0[0]
fmt2 = fmt0[1]
val = origvalue.split('.')[0].strip()
ret = fillchar * (len(fmt1)-len(val)) + val + "." + "0" * len(fmt2)
if neg:
ret = '-' + ret[1:]
return (ret,len(fmt1))
def isDateType( fmtstring ):
""" Checks the mask and returns True if it fits an allowed
date or datetime format.
"""
dateMasks = ("^##/##/####",
"^##-##-####",
"^##.##.####",
"^####/##/##",
"^####-##-##",
"^####.##.##",
"^##/CCC/####",
"^##.CCC.####",
"^##/##/##$",
"^##/##/## ",
"^##/CCC/##$",
"^##.CCC.## ",)
reString = "|".join(dateMasks)
filter = re.compile( reString)
if re.match(filter,fmtstring): return True
return False
def isTimeType( fmtstring ):
""" Checks the mask and returns True if it fits an allowed
time format.
"""
reTimeMask = "^##:##(:##)?( (AM|PM))?"
filter = re.compile( reTimeMask )
if re.match(filter,fmtstring): return True
return False
def isFloatingPoint( fmtstring):
filter = re.compile("[ ]?[#]+\.[#]+\n")
if re.match(filter,fmtstring+"\n"): return True
return False
def isInteger( fmtstring ):
filter = re.compile("[#]+\n")
if re.match(filter,fmtstring+"\n"): return True
return False
def getDateParts( dateStr, dateFmt ):
if len(dateStr) > 11: clip = dateStr[0:11]
else: clip = dateStr
if clip[-2] not in string.digits:
clip = clip[:-1] # (got part of time; drop it)
dateSep = (('/' in clip) * '/') + (('-' in clip) * '-') + (('.' in clip) * '.')
slices = clip.split(dateSep)
if dateFmt == "MDY":
y,m,d = (slices[2],slices[0],slices[1]) ## year, month, date parts
elif dateFmt == "DMY":
y,m,d = (slices[2],slices[1],slices[0]) ## year, month, date parts
elif dateFmt == "YMD":
y,m,d = (slices[0],slices[1],slices[2]) ## year, month, date parts
else:
y,m,d = None, None, None
if not y:
return None
else:
return y,m,d
def getDateSepChar(dateStr):
clip = dateStr[0:10]
dateSep = (('/' in clip) * '/') + (('-' in clip) * '-') + (('.' in clip) * '.')
return dateSep
def makeDate( year, month, day, dateFmt, dateStr):
sep = getDateSepChar( dateStr)
if dateFmt == "MDY":
return "%s%s%s%s%s" % (month,sep,day,sep,year) ## year, month, date parts
elif dateFmt == "DMY":
return "%s%s%s%s%s" % (day,sep,month,sep,year) ## year, month, date parts
elif dateFmt == "YMD":
return "%s%s%s%s%s" % (year,sep,month,sep,day) ## year, month, date parts
else:
return none
def getYear(dateStr,dateFmt):
parts = getDateParts( dateStr, dateFmt)
return parts[0]
def getMonth(dateStr,dateFmt):
parts = getDateParts( dateStr, dateFmt)
return parts[1]
def getDay(dateStr,dateFmt):
parts = getDateParts( dateStr, dateFmt)
return parts[2]
## ---------- ---------- ---------- ---------- ---------- ---------- ----------
class test(wx.PySimpleApp):
def OnInit(self):
from wx.lib.rcsizer import RowColSizer
self.frame = wx.Frame( None, -1, "MaskedEditMixin 0.0.7 Demo Page #1", size = (700,600))
self.panel = wx.Panel( self.frame, -1)
self.sizer = RowColSizer()
self.labels = []
self.editList = []
rowcount = 4
id, id1 = wx.NewId(), wx.NewId()
self.command1 = wx.Button( self.panel, id, "&Close" )
self.command2 = wx.Button( self.panel, id1, "&AutoFormats" )
self.sizer.Add(self.command1, row=0, col=0, flag=wx.ALL, border = 5)
self.sizer.Add(self.command2, row=0, col=1, colspan=2, flag=wx.ALL, border = 5)
self.panel.Bind(wx.EVT_BUTTON, self.onClick, self.command1 )
## self.panel.SetDefaultItem(self.command1 )
self.panel.Bind(wx.EVT_BUTTON, self.onClickPage, self.command2)
self.check1 = wx.CheckBox( self.panel, -1, "Disallow Empty" )
self.check2 = wx.CheckBox( self.panel, -1, "Highlight Empty" )
self.sizer.Add( self.check1, row=0,col=3, flag=wx.ALL,border=5 )
self.sizer.Add( self.check2, row=0,col=4, flag=wx.ALL,border=5 )
self.panel.Bind(wx.EVT_CHECKBOX, self._onCheck1, self.check1 )
self.panel.Bind(wx.EVT_CHECKBOX, self._onCheck2, self.check2 )
label = """Press ctrl-s in any field to output the value and plain value. Press ctrl-x to clear and re-set any field.
Note that all controls have been auto-sized by including F in the format code.
Try entering nonsensical or partial values in validated fields to see what happens (use ctrl-s to test the valid status)."""
label2 = "\nNote that the State and Last Name fields are list-limited (Name:Smith,Jones,Williams)."
self.label1 = wx.StaticText( self.panel, -1, label)
self.label2 = wx.StaticText( self.panel, -1, "Description")
self.label3 = wx.StaticText( self.panel, -1, "Mask Value")
self.label4 = wx.StaticText( self.panel, -1, "Format")
self.label5 = wx.StaticText( self.panel, -1, "Reg Expr Val. (opt)")
self.label6 = wx.StaticText( self.panel, -1, "wxMaskedEdit Ctrl")
self.label7 = wx.StaticText( self.panel, -1, label2)
self.label7.SetForegroundColour("Blue")
self.label1.SetForegroundColour("Blue")
self.label2.SetFont(wx.Font(9,wx.SWISS,wx.NORMAL,wx.BOLD))
self.label3.SetFont(wx.Font(9,wx.SWISS,wx.NORMAL,wx.BOLD))
self.label4.SetFont(wx.Font(9,wx.SWISS,wx.NORMAL,wx.BOLD))
self.label5.SetFont(wx.Font(9,wx.SWISS,wx.NORMAL,wx.BOLD))
self.label6.SetFont(wx.Font(9,wx.SWISS,wx.NORMAL,wx.BOLD))
self.sizer.Add( self.label1, row=1,col=0,colspan=7, flag=wx.ALL,border=5)
self.sizer.Add( self.label7, row=2,col=0,colspan=7, flag=wx.ALL,border=5)
self.sizer.Add( self.label2, row=3,col=0, flag=wx.ALL,border=5)
self.sizer.Add( self.label3, row=3,col=1, flag=wx.ALL,border=5)
self.sizer.Add( self.label4, row=3,col=2, flag=wx.ALL,border=5)
self.sizer.Add( self.label5, row=3,col=3, flag=wx.ALL,border=5)
self.sizer.Add( self.label6, row=3,col=4, flag=wx.ALL,border=5)
# The following list is of the controls for the demo. Feel free to play around with
# the options!
controls = [
#description mask excl format regexp range,list,initial
("Phone No", "(###) ###-#### x:###", "", 'F!^-R', "^\(\d\d\d\) \d\d\d-\d\d\d\d", (),[],''),
("Last Name Only", "C{14}", "", 'F {list}', '^[A-Z][a-zA-Z]+', (),('Smith','Jones','Williams'),''),
("Full Name", "C{14}", "", 'F_', '^[A-Z][a-zA-Z]+ [A-Z][a-zA-Z]+', (),[],''),
("Social Sec#", "###-##-####", "", 'F', "\d{3}-\d{2}-\d{4}", (),[],''),
("U.S. Zip+4", "#{5}-#{4}", "", 'F', "\d{5}-(\s{4}|\d{4})",(),[],''),
("U.S. State (2 char)\n(with default)","AA", "", 'F!', "[A-Z]{2}", (),states, 'AZ'),
("Customer No", "\CAA-###", "", 'F!', "C[A-Z]{2}-\d{3}", (),[],''),
("Date (MDY) + Time\n(with default)", "##/##/#### ##:## AM", 'BCDEFGHIJKLMNOQRSTUVWXYZ','DFR!',"", (),[], r'03/05/2003 12:00 AM'),
("Invoice Total", "#{9}.##", "", 'F-R,', "", (),[], ''),
("Integer (signed)\n(with default)", "#{6}", "", 'F-R', "", (),[], '0 '),
("Integer (unsigned)\n(with default), 1-399", "######", "", 'F', "", (1,399),[], '1 '),
("Month selector", "XXX", "", 'F', "", (),
['Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'],""),
("fraction selector","#/##", "", 'F', "^\d\/\d\d?", (),
['2/3', '3/4', '1/2', '1/4', '1/8', '1/16', '1/32', '1/64'], "")
]
for control in controls:
self.sizer.Add( wx.StaticText( self.panel, -1, control[0]),row=rowcount, col=0,border=5,flag=wx.ALL)
self.sizer.Add( wx.StaticText( self.panel, -1, control[1]),row=rowcount, col=1,border=5, flag=wx.ALL)
self.sizer.Add( wx.StaticText( self.panel, -1, control[3]),row=rowcount, col=2,border=5, flag=wx.ALL)
self.sizer.Add( wx.StaticText( self.panel, -1, control[4][:20]),row=rowcount, col=3,border=5, flag=wx.ALL)
if control in controls[:]:#-2]:
newControl = MaskedTextCtrl( self.panel, -1, "",
mask = control[1],
excludeChars = control[2],
formatcodes = control[3],
includeChars = "",
validRegex = control[4],
validRange = control[5],
choices = control[6],
defaultValue = control[7],
demo = True)
if control[6]: newControl.SetCtrlParameters(choiceRequired = True)
else:
newControl = MaskedComboBox( self.panel, -1, "",
choices = control[7],
choiceRequired = True,
mask = control[1],
formatcodes = control[3],
excludeChars = control[2],
includeChars = "",
validRegex = control[4],
validRange = control[5],
demo = True)
self.editList.append( newControl )
self.sizer.Add( newControl, row=rowcount,col=4,flag=wx.ALL,border=5)
rowcount += 1
self.sizer.AddGrowableCol(4)
self.panel.SetSizer(self.sizer)
self.panel.SetAutoLayout(1)
self.frame.Show(1)
self.MainLoop()
return True
def onClick(self, event):
self.frame.Close()
def onClickPage(self, event):
self.page2 = test2(self.frame,-1,"")
self.page2.Show(True)
def _onCheck1(self,event):
""" Set required value on/off """
value = event.IsChecked()
if value:
for control in self.editList:
control.SetCtrlParameters(emptyInvalid=True)
control.Refresh()
else:
for control in self.editList:
control.SetCtrlParameters(emptyInvalid=False)
control.Refresh()
self.panel.Refresh()
def _onCheck2(self,event):
""" Highlight empty values"""
value = event.IsChecked()
if value:
for control in self.editList:
control.SetCtrlParameters( emptyBackgroundColour = 'Aquamarine')
control.Refresh()
else:
for control in self.editList:
control.SetCtrlParameters( emptyBackgroundColour = 'White')
control.Refresh()
self.panel.Refresh()
## ---------- ---------- ---------- ---------- ---------- ---------- ----------
class test2(wx.Frame):
def __init__(self, parent, id, caption):
wx.Frame.__init__( self, parent, id, "wxMaskedEdit control 0.0.7 Demo Page #2 -- AutoFormats", size = (550,600))
from wx.lib.rcsizer import RowColSizer
self.panel = wx.Panel( self, -1)
self.sizer = RowColSizer()
self.labels = []
self.texts = []
rowcount = 4
label = """\
All these controls have been created by passing a single parameter, the AutoFormat code.
The class contains an internal dictionary of types and formats (autoformats).
To see a great example of validations in action, try entering a bad email address, then tab out."""
self.label1 = wx.StaticText( self.panel, -1, label)
self.label2 = wx.StaticText( self.panel, -1, "Description")
self.label3 = wx.StaticText( self.panel, -1, "AutoFormat Code")
self.label4 = wx.StaticText( self.panel, -1, "wxMaskedEdit Control")
self.label1.SetForegroundColour("Blue")
self.label2.SetFont(wx.Font(9,wx.SWISS,wx.NORMAL,wx.BOLD))
self.label3.SetFont(wx.Font(9,wx.SWISS,wx.NORMAL,wx.BOLD))
self.label4.SetFont(wx.Font(9,wx.SWISS,wx.NORMAL,wx.BOLD))
self.sizer.Add( self.label1, row=1,col=0,colspan=3, flag=wx.ALL,border=5)
self.sizer.Add( self.label2, row=3,col=0, flag=wx.ALL,border=5)
self.sizer.Add( self.label3, row=3,col=1, flag=wx.ALL,border=5)
self.sizer.Add( self.label4, row=3,col=2, flag=wx.ALL,border=5)
id, id1 = wx.NewId(), wx.NewId()
self.command1 = wx.Button( self.panel, id, "&Close")
self.command2 = wx.Button( self.panel, id1, "&Print Formats")
self.panel.Bind(wx.EVT_BUTTON, self.onClick, self.command1)
self.panel.SetDefaultItem(self.command1)
self.panel.Bind(wx.EVT_BUTTON, self.onClickPrint, self.command2)
# The following list is of the controls for the demo. Feel free to play around with
# the options!
controls = [
("Phone No","USPHONEFULLEXT"),
("US Date + Time","USDATETIMEMMDDYYYY/HHMM"),
("US Date MMDDYYYY","USDATEMMDDYYYY/"),
("Time (with seconds)","TIMEHHMMSS"),
("Military Time\n(without seconds)","MILTIMEHHMM"),
("Social Sec#","USSOCIALSEC"),
("Credit Card","CREDITCARD"),
("Expiration MM/YY","EXPDATEMMYY"),
("Percentage","PERCENT"),
("Person's Age","AGE"),
("US Zip Code","USZIP"),
("US Zip+4","USZIPPLUS4"),
("Email Address","EMAIL"),
("IP Address", "(derived control IpAddrCtrl)")
]
for control in controls:
self.sizer.Add( wx.StaticText( self.panel, -1, control[0]),row=rowcount, col=0,border=5,flag=wx.ALL)
self.sizer.Add( wx.StaticText( self.panel, -1, control[1]),row=rowcount, col=1,border=5, flag=wx.ALL)
if control in controls[:-1]:
self.sizer.Add( MaskedTextCtrl( self.panel, -1, "",
autoformat = control[1],
demo = True),
row=rowcount,col=2,flag=wx.ALL,border=5)
else:
self.sizer.Add( IpAddrCtrl( self.panel, -1, "", demo=True ),
row=rowcount,col=2,flag=wx.ALL,border=5)
rowcount += 1
self.sizer.Add(self.command1, row=0, col=0, flag=wx.ALL, border = 5)
self.sizer.Add(self.command2, row=0, col=1, flag=wx.ALL, border = 5)
self.sizer.AddGrowableCol(3)
self.panel.SetSizer(self.sizer)
self.panel.SetAutoLayout(1)
def onClick(self, event):
self.Close()
def onClickPrint(self, event):
for format in masktags.keys():
sep = "+------------------------+"
print "%s\n%s \n Mask: %s \n RE Validation string: %s\n" % (sep,format, masktags[format]['mask'], masktags[format]['validRegex'])
## ---------- ---------- ---------- ---------- ---------- ---------- ----------
if __name__ == "__main__":
app = test(False)
i=1
##
## Current Issues:
## ===================================
##
## 1. WS: For some reason I don't understand, the control is generating two (2)
## EVT_TEXT events for every one (1) .SetValue() of the underlying control.
## I've been unsuccessful in determining why or in my efforts to make just one
## occur. So, I've added a hack to save the last seen value from the
## control in the EVT_TEXT handler, and if *different*, call event.Skip()
## to propagate it down the event chain, and let the application see it.
##
## 2. WS: MaskedComboBox is deficient in several areas, all having to do with the
## behavior of the underlying control that I can't fix. The problems are:
## a) The background coloring doesn't work in the text field of the control;
## instead, there's a only border around it that assumes the correct color.
## b) The control will not pass WXK_TAB to the event handler, no matter what
## I do, and there's no style wxCB_PROCESS_TAB like wxTE_PROCESS_TAB to
## indicate that we want these events. As a result, MaskedComboBox
## doesn't do the nice field-tabbing that MaskedTextCtrl does.
## c) Auto-complete had to be reimplemented for the control because programmatic
## setting of the value of the text field does not set up the auto complete
## the way that the control processing keystrokes does. (But I think I've
## implemented a fairly decent approximation.) Because of this the control
## also won't auto-complete on dropdown, and there's no event I can catch
## to work around this problem.
## d) There is no method provided for getting the selection; the hack I've
## implemented has its flaws, not the least of which is that due to the
## strategy that I'm using, the paste buffer is always replaced by the
## contents of the control's selection when in focus, on each keystroke;
## this makes it impossible to paste anything into a MaskedComboBox
## at the moment... :-(
## e) The other deficient behavior, likely induced by the workaround for (d),
## is that you can can't shift-left to select more than one character
## at a time.
##
##
## 3. WS: Controls on wxPanels don't seem to pass Shift-WXK_TAB to their
## EVT_KEY_DOWN or EVT_CHAR event handlers. Until this is fixed in
## wxWindows, shift-tab won't take you backwards through the fields of
## a MaskedTextCtrl like it should. Until then Shifted arrow keys will
## work like shift-tab and tab ought to.
##
## To-Do's:
## =============================##
## 1. Add Popup list for auto-completable fields that simulates combobox on individual
## fields. Example: City validates against list of cities, or zip vs zip code list.
## 2. Allow optional monetary symbols (eg. $, pounds, etc.) at front of a "decimal"
## control.
## 3. Fix shift-left selection for MaskedComboBox.
## 5. Transform notion of "decimal control" to be less "entire control"-centric,
## so that monetary symbols can be included and still have the appropriate
## semantics. (Big job, as currently written, but would make control even
## more useful for business applications.)
## CHANGELOG:
## ====================
## Version 1.4
## (Reported) bugs fixed:
## 1. Right-click menu allowed "cut" operation that destroyed mask
## (was implemented by base control)
## 2. MaskedComboBox didn't allow .Append() of mixed-case values; all
## got converted to lower case.
## 3. MaskedComboBox selection didn't deal with spaces in values
## properly when autocompleting, and didn't have a concept of "next"
## match for handling choice list duplicates.
## 4. Size of MaskedComboBox was always default.
## 5. Email address regexp allowed some "non-standard" things, and wasn't
## general enough.
## 6. Couldn't easily reset MaskedComboBox contents programmatically.
## 7. Couldn't set emptyInvalid during construction.
## 8. Under some versions of wxPython, readonly comboboxes can apparently
## return a GetInsertionPoint() result (655535), causing masked control
## to fail.
## 9. Specifying an empty mask caused the controls to traceback.
## 10. Can't specify float ranges for validRange.
## 11. '.' from within a the static portion of a restricted IP address
## destroyed the mask from that point rightward; tab when cursor is
## before 1st field takes cursor past that field.
##
## Enhancements:
## 12. Added Ctrl-Z/Undo handling, (and implemented context-menu properly.)
## 13. Added auto-select option on char input for masked controls with
## choice lists.
## 14. Added '>' formatcode, allowing insert within a given or each field
## as appropriate, rather than requiring "overwrite". This makes single
## field controls that just have validation rules (eg. EMAIL) much more
## friendly. The same flag controls left shift when deleting vs just
## blanking the value, and for right-insert fields, allows right-insert
## at any non-blank (non-sign) position in the field.
## 15. Added option to use to indicate negative values for numeric controls.
## 16. Improved OnFocus handling of numeric controls.
## 17. Enhanced Home/End processing to allow operation on a field level,
## using ctrl key.
## 18. Added individual Get/Set functions for control parameters, for
## simplified integration with Boa Constructor.
## 19. Standardized "Colour" parameter names to match wxPython, with
## non-british spellings still supported for backward-compatibility.
## 20. Added '&' mask specification character for punctuation only (no letters
## or digits).
## 21. Added (in a separate file) wxMaskedCtrl() factory function to provide
## unified interface to the masked edit subclasses.
##
##
## Version 1.3
## 1. Made it possible to configure grouping, decimal and shift-decimal characters,
## to make controls more usable internationally.
## 2. Added code to smart "adjust" value strings presented to .SetValue()
## for right-aligned numeric format controls if they are shorter than
## than the control width, prepending the missing portion, prepending control
## template left substring for the missing characters, so that setting
## numeric values is easier.
## 3. Renamed SetMaskParameters SetCtrlParameters() (with old name preserved
## for b-c), as this makes more sense.
##
## Version 1.2
## 1. Fixed .SetValue() to replace the current value, rather than the current
## selection. Also changed it to generate ValueError if presented with
## either a value which doesn't follow the format or won't fit. Also made
## set value adjust numeric and date controls as if user entered the value.
## Expanded doc explaining how SetValue() works.
## 2. Fixed EUDATE* autoformats, fixed IsDateType mask list, and added ability to
## use 3-char months for dates, and EUDATETIME, and EUDATEMILTIME autoformats.
## 3. Made all date autoformats automatically pick implied "datestyle".
## 4. Added IsModified override, since base wxTextCtrl never reports modified if
## .SetValue used to change the value, which is what the masked edit controls
## use internally.
## 5. Fixed bug in date position adjustment on 2 to 4 digit date conversion when
## using tab to "leave field" and auto-adjust.
## 6. Fixed bug in _isCharAllowed() for negative number insertion on pastes,
## and bug in ._Paste() that didn't account for signs in signed masks either.
## 7. Fixed issues with _adjustPos for right-insert fields causing improper
## selection/replacement of values
## 8. Fixed _OnHome handler to properly handle extending current selection to
## beginning of control.
## 9. Exposed all (valid) autoformats to demo, binding descriptions to
## autoformats.
## 10. Fixed a couple of bugs in email regexp.
## 11. Made maskchardict an instance var, to make mask chars to be more
## amenable to international use.
## 12. Clarified meaning of '-' formatcode in doc.
## 13. Fixed a couple of coding bugs being flagged by Python2.1.
## 14. Fixed several issues with sign positioning, erasure and validity
## checking for "numeric" masked controls.
## 15. Added validation to IpAddrCtrl.SetValue().
##
## Version 1.1
## 1. Changed calling interface to use boolean "useFixedWidthFont" (True by default)
## vs. literal font facename, and use wxTELETYPE as the font family
## if so specified.
## 2. Switched to use of dbg module vs. locally defined version.
## 3. Revamped entire control structure to use Field classes to hold constraint
## and formatting data, to make code more hierarchical, allow for more
## sophisticated masked edit construction.
## 4. Better strategy for managing options, and better validation on keywords.
## 5. Added 'V' format code, which requires that in order for a character
## to be accepted, it must result in a string that passes the validRegex.
## 6. Added 'S' format code which means "select entire field when navigating
## to new field."
## 7. Added 'r' format code to allow "right-insert" fields. (implies 'R'--right-alignment)
## 8. Added '<' format code to allow fields to require explicit cursor movement
## to leave field.
## 9. Added validFunc option to other validation mechanisms, that allows derived
## classes to add dynamic validation constraints to the control.
## 10. Fixed bug in validatePaste code causing possible IndexErrors, and also
## fixed failure to obey case conversion codes when pasting.
## 11. Implemented '0' (zero-pad) formatting code, as it wasn't being done anywhere...
## 12. Removed condition from OnDecimalPoint, so that it always truncates right on '.'
## 13. Enhanced IpAddrCtrl to use right-insert fields, selection on field traversal,
## individual field validation to prevent field values > 255, and require explicit
## tab/. to change fields.
## 14. Added handler for left double-click to select field under cursor.
## 15. Fixed handling for "Read-only" styles.
## 16. Separated signedForegroundColor from 'R' style, and added foregroundColor
## attribute, for more consistent and controllable coloring.
## 17. Added retainFieldValidation parameter, allowing top-level constraints
## such as "validRequired" to be set independently of field-level equivalent.
## (needed in TimeCtrl for bounds constraints.)
## 18. Refactored code a bit, cleaned up and commented code more heavily, fixed
## some of the logic for setting/resetting parameters, eg. fillChar, defaultValue,
## etc.
## 19. Fixed maskchar setting for upper/lowercase, to work in all locales.
##
##
## Version 1.0
## 1. Decimal point behavior restored for decimal and integer type controls:
## decimal point now trucates the portion > 0.
## 2. Return key now works like the tab character and moves to the next field,
## provided no default button is set for the form panel on which the control
## resides.
## 3. Support added in _FindField() for subclasses controls (like timecontrol)
## to determine where the current insertion point is within the mask (i.e.
## which sub-'field'). See method documentation for more info and examples.
## 4. Added Field class and support for all constraints to be field-specific
## in addition to being globally settable for the control.
## Choices for each field are validated for length and pastability into
## the field in question, raising ValueError if not appropriate for the control.
## Also added selective additional validation based on individual field constraints.
## By default, SHIFT-WXK_DOWN, SHIFT-WXK_UP, WXK_PRIOR and WXK_NEXT all
## auto-complete fields with choice lists, supplying the 1st entry in
## the choice list if the field is empty, and cycling through the list in
## the appropriate direction if already a match. WXK_DOWN will also auto-
## complete if the field is partially completed and a match can be made.
## SHIFT-WXK_UP/DOWN will also take you to the next field after any
## auto-completion performed.
## 5. Added autoCompleteKeycodes=[] parameters for allowing further
## customization of the control. Any keycode supplied as a member
## of the _autoCompleteKeycodes list will be treated like WXK_NEXT. If
## requireFieldChoice is set, then a valid value from each non-empty
## choice list will be required for the value of the control to validate.
## 6. Fixed "auto-sizing" to be relative to the font actually used, rather
## than making assumptions about character width.
## 7. Fixed GetMaskParameter(), which was non-functional in previous version.
## 8. Fixed exceptions raised to provide info on which control had the error.
## 9. Fixed bug in choice management of MaskedComboBox.
## 10. Fixed bug in IpAddrCtrl causing traceback if field value was of
## the form '# #'. Modified control code for IpAddrCtrl so that '.'
## in the middle of a field clips the rest of that field, similar to
## decimal and integer controls.
##
##
## Version 0.0.7
## 1. "-" is a toggle for sign; "+" now changes - signed numerics to positive.
## 2. ',' in formatcodes now causes numeric values to be comma-delimited (e.g.333,333).
## 3. New support for selecting text within the control.(thanks Will Sadkin!)
## Shift-End and Shift-Home now select text as you would expect
## Control-Shift-End selects to the end of the mask string, even if value not entered.
## Control-A selects all *entered* text, Shift-Control-A selects everything in the control.
## 4. event.Skip() added to onKillFocus to correct remnants when running in Linux (contributed-
## for some reason I couldn't find the original email but thanks!!!)
## 5. All major key-handling code moved to their own methods for easier subclassing: OnHome,
## OnErase, OnEnd, OnCtrl_X, OnCtrl_A, etc.
## 6. Email and autoformat validations corrected using regex provided by Will Sadkin (thanks!).
## (The rest of the changes in this version were done by Will Sadkin with permission from Jeff...)
## 7. New mechanism for replacing default behavior for any given key, using
## ._SetKeycodeHandler(keycode, func) and ._SetKeyHandler(char, func) now available
## for easier subclassing of the control.
## 8. Reworked the delete logic, cut, paste and select/replace logic, as well as some bugs
## with insertion point/selection modification. Changed Ctrl-X to use standard "cut"
## semantics, erasing the selection, rather than erasing the entire control.
## 9. Added option for an "default value" (ie. the template) for use when a single fillChar
## is not desired in every position. Added IsDefault() function to mean "does the value
## equal the template?" and modified .IsEmpty() to mean "do all of the editable
## positions in the template == the fillChar?"
## 10. Extracted mask logic into mixin, so we can have both MaskedTextCtrl and MaskedComboBox,
## now included.
## 11. MaskedComboBox now adds the capability to validate from list of valid values.
## Example: City validates against list of cities, or zip vs zip code list.
## 12. Fixed oversight in EVT_TEXT handler that prevented the events from being
## passed to the next handler in the event chain, causing updates to the
## control to be invisible to the parent code.
## 13. Added IPADDR autoformat code, and subclass IpAddrCtrl for controlling tabbing within
## the control, that auto-reformats as you move between cells.
## 14. Mask characters [A,a,X,#] can now appear in the format string as literals, by using '\'.
## 15. It is now possible to specify repeating masks, e.g. #{3}-#{3}-#{14}
## 16. Fixed major bugs in date validation, due to the fact that
## wxDateTime.ParseDate is too liberal, and will accept any form that
## makes any kind of sense, regardless of the datestyle you specified
## for the control. Unfortunately, the strategy used to fix it only
## works for versions of wxPython post 2.3.3.1, as a C++ assert box
## seems to show up on an invalid date otherwise, instead of a catchable
## exception.
## 17. Enhanced date adjustment to automatically adjust heuristic based on
## current year, making last century/this century determination on
## 2-digit year based on distance between today's year and value;
## if > 50 year separation, assume last century (and don't assume last
## century is 20th.)
## 18. Added autoformats and support for including HHMMSS as well as HHMM for
## date times, and added similar time, and militaray time autoformats.
## 19. Enhanced tabbing logic so that tab takes you to the next field if the
## control is a multi-field control.
## 20. Added stub method called whenever the control "changes fields", that
## can be overridden by subclasses (eg. IpAddrCtrl.)
## 21. Changed a lot of code to be more functionally-oriented so side-effects
## aren't as problematic when maintaining code and/or adding features.
## Eg: IsValid() now does not have side-effects; it merely reflects the
## validity of the value of the control; to determine validity AND recolor
## the control, _CheckValid() should be used with a value argument of None.
## Similarly, made most reformatting function take an optional candidate value
## rather than just using the current value of the control, and only
## have them change the value of the control if a candidate is not specified.
## In this way, you can do validation *before* changing the control.
## 22. Changed validRequired to mean "disallow chars that result in invalid
## value." (Old meaning now represented by emptyInvalid.) (This was
## possible once I'd made the changes in (19) above.)
## 23. Added .SetMaskParameters and .GetMaskParameter methods, so they
## can be set/modified/retrieved after construction. Removed individual
## parameter setting functions, in favor of this mechanism, so that
## all adjustment of the control based on changing parameter values can
## be handled in one place with unified mechanism.
## 24. Did a *lot* of testing and fixing re: numeric values. Added ability
## to type "grouping char" (ie. ',') and validate as appropriate.
## 25. Fixed ZIPPLUS4 to allow either 5 or 4, but if > 5 must be 9.
## 26. Fixed assumption about "decimal or integer" masks so that they're only
## made iff there's no validRegex associated with the field. (This
## is so things like zipcodes which look like integers can have more
## restrictive validation (ie. must be 5 digits.)
## 27. Added a ton more doc strings to explain use and derivation requirements
## and did regularization of the naming conventions.
## 28. Fixed a range bug in _adjustKey preventing z from being handled properly.
## 29. Changed behavior of '.' (and shift-.) in numeric controls to move to
## reformat the value and move the next field as appropriate. (shift-'.',
## ie. '>' moves to the previous field.
## Version 0.0.6
## 1. Fixed regex bug that caused autoformat AGE to invalidate any age ending
## in '0'.
## 2. New format character 'D' to trigger date type. If the user enters 2 digits in the
## year position, the control will expand the value to four digits, using numerals below
## 50 as 21st century (20+nn) and less than 50 as 20th century (19+nn).
## Also, new optional parameter datestyle = set to one of {MDY|DMY|YDM}
## 3. revalid parameter renamed validRegex to conform to standard for all validation
## parameters (see 2 new ones below).
## 4. New optional init parameter = validRange. Used only for int/dec (numeric) types.
## Allows the developer to specify a valid low/high range of values.
## 5. New optional init parameter = validList. Used for character types. Allows developer
## to send a list of values to the control to be used for specific validation.
## See the Last Name Only example - it is list restricted to Smith/Jones/Williams.
## 6. Date type fields now use wxDateTime's parser to validate the date and time.
## This works MUCH better than my kludgy regex!! Thanks to Robin Dunn for pointing
## me toward this solution!
## 7. Date fields now automatically expand 2-digit years when it can. For example,
## if the user types "03/10/67", then "67" will auto-expand to "1967". If a two-year
## date is entered it will be expanded in any case when the user tabs out of the
## field.
## 8. New class functions: SetValidBackgroundColor, SetInvalidBackgroundColor, SetEmptyBackgroundColor,
## SetSignedForeColor allow accessto override default class coloring behavior.
## 9. Documentation updated and improved.
## 10. Demo - page 2 is now a wxFrame class instead of a wxPyApp class. Works better.
## Two new options (checkboxes) - test highlight empty and disallow empty.
## 11. Home and End now work more intuitively, moving to the first and last user-entry
## value, respectively.
## 12. New class function: SetRequired(bool). Sets the control's entry required flag
## (i.e. disallow empty values if True).
##
## Version 0.0.5
## 1. get_plainValue method renamed to GetPlainValue following the wxWindows
## StudlyCaps(tm) standard (thanks Paul Moore). ;)
## 2. New format code 'F' causes the control to auto-fit (auto-size) itself
## based on the length of the mask template.
## 3. Class now supports "autoformat" codes. These can be passed to the class
## on instantiation using the parameter autoformat="code". If the code is in
## the dictionary, it will self set the mask, formatting, and validation string.
## I have included a number of samples, but I am hoping that someone out there
## can help me to define a whole bunch more.
## 4. I have added a second page to the demo (as well as a second demo class, test2)
## to showcase how autoformats work. The way they self-format and self-size is,
## I must say, pretty cool.
## 5. Comments added and some internal cosmetic revisions re: matching the code
## standards for class submission.
## 6. Regex validation is now done in real time - field turns yellow immediately
## and stays yellow until the entered value is valid
## 7. Cursor now skips over template characters in a more intuitive way (before the
## next keypress).
## 8. Change, Keypress and LostFocus methods added for convenience of subclasses.
## Developer may use these methods which will be called after EVT_TEXT, EVT_CHAR,
## and EVT_KILL_FOCUS, respectively.
## 9. Decimal and numeric handlers have been rewritten and now work more intuitively.
##
## Version 0.0.4
## 1. New .IsEmpty() method returns True if the control's value is equal to the
## blank template string
## 2. Control now supports a new init parameter: revalid. Pass a regular expression
## that the value will have to match when the control loses focus. If invalid,
## the control's BackgroundColor will turn yellow, and an internal flag is set (see next).
## 3. Demo now shows revalid functionality. Try entering a partial value, such as a
## partial social security number.
## 4. New .IsValid() value returns True if the control is empty, or if the value matches
## the revalid expression. If not, .IsValid() returns False.
## 5. Decimal values now collapse to decimal with '.00' on losefocus if the user never
## presses the decimal point.
## 6. Cursor now goes to the beginning of the field if the user clicks in an
## "empty" field intead of leaving the insertion point in the middle of the
## field.
## 7. New "N" mask type includes upper and lower chars plus digits. a-zA-Z0-9.
## 8. New formatcodes init parameter replaces other init params and adds functions.
## String passed to control on init controls:
## _ Allow spaces
## ! Force upper
## ^ Force lower
## R Show negative #s in red
## , Group digits
## - Signed numerals
## 0 Numeric fields get leading zeros
## 9. Ctrl-X in any field clears the current value.
## 10. Code refactored and made more modular (esp in OnChar method). Should be more
## easy to read and understand.
## 11. Demo enhanced.
## 12. Now has _doc_.
##
## Version 0.0.3
## 1. GetPlainValue() now returns the value without the template characters;
## so, for example, a social security number (123-33-1212) would return as
## 123331212; also removes white spaces from numeric/decimal values, so
## "- 955.32" is returned "-955.32". Press ctrl-S to see the plain value.
## 2. Press '.' in an integer style masked control and truncate any trailing digits.
## 3. Code moderately refactored. Internal names improved for clarity. Additional
## internal documentation.
## 4. Home and End keys now supported to move cursor to beginning or end of field.
## 5. Un-signed integers and decimals now supported.
## 6. Cosmetic improvements to the demo.
## 7. Class renamed to MaskedTextCtrl.
## 8. Can now specify include characters that will override the basic
## controls: for example, includeChars = "@." for email addresses
## 9. Added mask character 'C' -> allow any upper or lowercase character
## 10. .SetSignColor(str:color) sets the foreground color for negative values
## in signed controls (defaults to red)
## 11. Overview documentation written.
##
## Version 0.0.2
## 1. Tab now works properly when pressed in last position
## 2. Decimal types now work (e.g. #####.##)
## 3. Signed decimal or numeric values supported (i.e. negative numbers)
## 4. Negative decimal or numeric values now can show in red.
## 5. Can now specify an "exclude list" with the excludeChars parameter.
## See date/time formatted example - you can only enter A or P in the
## character mask space (i.e. AM/PM).
## 6. Backspace now works properly, including clearing data from a selected
## region but leaving template characters intact. Also delete key.
## 7. Left/right arrows now work properly.
## 8. Removed EventManager call from test so demo should work with wxPython 2.3.3
##
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