ac1c82d736
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@28905 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
347 lines
15 KiB
Python
347 lines
15 KiB
Python
# sheet.py
|
|
# CSheet - A wxPython spreadsheet class.
|
|
# This is free software. Feel free to adapt it as you like.
|
|
# Author: Mark F. Russo (russomf@hotmail.com) 2002/01/31
|
|
#---------------------------------------------------------------------------
|
|
# 12/11/2003 - Jeff Grimmett (grimmtooth@softhome.net)
|
|
#
|
|
# o 2.5 compatability update.
|
|
# o Untested.
|
|
#
|
|
|
|
import string
|
|
import wx
|
|
import wx.grid
|
|
|
|
#---------------------------------------------------------------------------
|
|
class CTextCellEditor(wx.TextCtrl):
|
|
""" Custom text control for cell editing """
|
|
def __init__(self, parent, id, grid):
|
|
wx.TextCtrl.__init__(self, parent, id, "", style=wx.NO_BORDER)
|
|
self._grid = grid # Save grid reference
|
|
self.Bind(wx.EVT_CHAR, self.OnChar)
|
|
|
|
def OnChar(self, evt): # Hook OnChar for custom behavior
|
|
"""Customizes char events """
|
|
key = evt.GetKeyCode()
|
|
if key == wx.WXK_DOWN:
|
|
self._grid.DisableCellEditControl() # Commit the edit
|
|
self._grid.MoveCursorDown(False) # Change the current cell
|
|
elif key == wx.WXK_UP:
|
|
self._grid.DisableCellEditControl() # Commit the edit
|
|
self._grid.MoveCursorUp(False) # Change the current cell
|
|
elif key == wx.WXK_LEFT:
|
|
self._grid.DisableCellEditControl() # Commit the edit
|
|
self._grid.MoveCursorLeft(False) # Change the current cell
|
|
elif key == wx.WXK_RIGHT:
|
|
self._grid.DisableCellEditControl() # Commit the edit
|
|
self._grid.MoveCursorRight(False) # Change the current cell
|
|
|
|
evt.Skip() # Continue event
|
|
|
|
#---------------------------------------------------------------------------
|
|
class CCellEditor(wx.grid.PyGridCellEditor):
|
|
""" Custom cell editor """
|
|
def __init__(self, grid):
|
|
wx.grid.PyGridCellEditor.__init__(self)
|
|
self._grid = grid # Save a reference to the grid
|
|
|
|
def Create(self, parent, id, evtHandler):
|
|
""" Create the actual edit control. Must derive from wxControl.
|
|
Must Override
|
|
"""
|
|
self._tc = CTextCellEditor(parent, id, self._grid)
|
|
self._tc.SetInsertionPoint(0)
|
|
self.SetControl(self._tc)
|
|
if evtHandler:
|
|
self._tc.PushEventHandler(evtHandler)
|
|
|
|
def SetSize(self, rect):
|
|
""" Position/size the edit control within the cell rectangle. """
|
|
# Size text control to exactly overlay in-cell editing
|
|
self._tc.SetDimensions(rect.x+3, rect.y+3, rect.width-2, rect.height-2)
|
|
|
|
def Show(self, show, attr):
|
|
""" Show or hide the edit control. Use the attr (if not None)
|
|
to set colors or fonts for the control.
|
|
NOTE: There is no need to everride this if you don't need
|
|
to do something out of the ordingary.
|
|
"""
|
|
self.base_Show(show, attr)
|
|
|
|
def PaintBackground(self, rect, attr):
|
|
""" Draws the part of the cell not occupied by the edit control. The
|
|
base class version just fills it with background colour from the
|
|
attribute.
|
|
NOTE: There is no need to everride this if you don't need
|
|
to do something out of the ordingary.
|
|
"""
|
|
# Call base class method.
|
|
self.base_PaintBackground(self, rect, attr)
|
|
|
|
def BeginEdit(self, row, col, grid):
|
|
""" Fetch the value from the table and prepare edit control to begin editing.
|
|
Set the focus to the edit control. Must Override.
|
|
"""
|
|
self._startValue = grid.GetTable().GetValue(row, col)
|
|
self._tc.SetValue(self._startValue)
|
|
self._tc.SetFocus()
|
|
|
|
# Select the text when initiating an edit so that subsequent typing
|
|
# replaces the contents.
|
|
self._tc.SetSelection(0, self._tc.GetLastPosition())
|
|
|
|
def EndEdit(self, row, col, grid):
|
|
""" Commit editing the current cell. Returns True if the value has changed.
|
|
If necessary, the control may be destroyed. Must Override.
|
|
"""
|
|
changed = False # Assume value not changed
|
|
val = self._tc.GetValue() # Get value in edit control
|
|
if val != self._startValue: # Compare
|
|
changed = True # If different then changed is True
|
|
grid.GetTable().SetValue(row, col, val) # Update the table
|
|
self._startValue = '' # Clear the class' start value
|
|
self._tc.SetValue('') # Clear contents of the edit control
|
|
|
|
return changed
|
|
|
|
def Reset(self):
|
|
""" Reset the value in the control back to its starting value. Must Override. """
|
|
self._tc.SetValue(self._startValue)
|
|
self._tc.SetInsertionPointEnd()
|
|
|
|
def IsAcceptedKey(self, evt):
|
|
""" Return True to allow the given key to start editing. The base class
|
|
version only checks that the event has no modifiers. F2 is special
|
|
and will always start the editor.
|
|
"""
|
|
return (not (evt.ControlDown() or evt.AltDown())
|
|
and evt.GetKeyCode() != wx.WXK_SHIFT)
|
|
|
|
def StartingKey(self, evt):
|
|
""" If the editor is enabled by pressing keys on the grid, this will be
|
|
called to let the editor react to that first key.
|
|
"""
|
|
key = evt.GetKeyCode() # Get the key code
|
|
ch = None # Handle num pad keys
|
|
if key in [ wx.WXK_NUMPAD0, wx.WXK_NUMPAD1, wx.WXK_NUMPAD2, wx.WXK_NUMPAD3,
|
|
wx.WXK_NUMPAD4, wx.WXK_NUMPAD5, wx.WXK_NUMPAD6, wx.WXK_NUMPAD7,
|
|
wx.WXK_NUMPAD8, wx.WXK_NUMPAD9]:
|
|
ch = chr(ord('0') + key - wx.WXK_NUMPAD0)
|
|
|
|
elif key == wx.WXK_BACK: # Empty text control when init w/ back key
|
|
ch = ""
|
|
# Handle normal keys
|
|
elif key < 256 and key >= 0 and chr(key) in string.printable:
|
|
ch = chr(key)
|
|
if not evt.ShiftDown():
|
|
ch = ch.lower()
|
|
|
|
if ch is not None: # If are at this point with a key,
|
|
self._tc.SetValue(ch) # replace the contents of the text control.
|
|
self._tc.SetInsertionPointEnd() # Move to the end so that subsequent keys are appended
|
|
else:
|
|
evt.Skip()
|
|
|
|
def StartingClick(self):
|
|
""" If the editor is enabled by clicking on the cell, this method will be
|
|
called to allow the editor to simulate the click on the control.
|
|
"""
|
|
pass
|
|
|
|
def Destroy(self):
|
|
""" Final cleanup
|
|
NOTE: There is no need to everride this if you don't need
|
|
to do something out of the ordingary.
|
|
"""
|
|
self.base_Destroy()
|
|
|
|
def Clone(self):
|
|
""" Create a new object which is the copy of this one. Must Override. """
|
|
return CCellEditor()
|
|
|
|
#---------------------------------------------------------------------------
|
|
class CSheet(wx.grid.Grid):
|
|
def __init__(self, parent):
|
|
wx.grid.Grid.__init__(self, parent, -1)
|
|
|
|
# Init variables
|
|
self._lastCol = -1 # Init last cell column clicked
|
|
self._lastRow = -1 # Init last cell row clicked
|
|
self._selected = None # Init range currently selected
|
|
# Map string datatype to default renderer/editor
|
|
self.RegisterDataType(wx.grid.GRID_VALUE_STRING,
|
|
wx.grid.GridCellStringRenderer(),
|
|
CCellEditor(self))
|
|
|
|
self.CreateGrid(4, 3) # By default start with a 4 x 3 grid
|
|
self.SetColLabelSize(18) # Default sizes and alignment
|
|
self.SetRowLabelSize(50)
|
|
self.SetRowLabelAlignment(wx.ALIGN_RIGHT, wx.ALIGN_BOTTOM)
|
|
self.SetColSize(0, 75) # Default column sizes
|
|
self.SetColSize(1, 75)
|
|
self.SetColSize(2, 75)
|
|
|
|
# Sink events
|
|
self.Bind(wx.grid.EVT_GRID_CELL_LEFT_CLICK, self.OnLeftClick)
|
|
self.Bind(wx.grid.EVT_GRID_CELL_RIGHT_CLICK, self.OnRightClick)
|
|
self.Bind(wx.grid.EVT_GRID_CELL_LEFT_DCLICK, self.OnLeftDoubleClick)
|
|
self.Bind(wx.grid.EVT_GRID_RANGE_SELECT, self.OnRangeSelect)
|
|
self.Bind(wx.grid.EVT_GRID_ROW_SIZE, self.OnRowSize)
|
|
self.Bind(wx.grid.EVT_GRID_COL_SIZE, self.OnColSize)
|
|
self.Bind(wx.grid.EVT_GRID_CELL_CHANGE, self.OnCellChange)
|
|
self.Bind(wx.grid.EVT_GRID_SELECT_CELL, self.OnGridSelectCell)
|
|
|
|
def OnGridSelectCell(self, event):
|
|
""" Track cell selections """
|
|
# Save the last cell coordinates
|
|
self._lastRow, self._lastCol = event.GetRow(), event.GetCol()
|
|
event.Skip()
|
|
|
|
def OnRowSize(self, event):
|
|
event.Skip()
|
|
|
|
def OnColSize(self, event):
|
|
event.Skip()
|
|
|
|
def OnCellChange(self, event):
|
|
event.Skip()
|
|
|
|
def OnLeftClick(self, event):
|
|
""" Override left-click behavior to prevent left-click edit initiation """
|
|
# Save the cell clicked
|
|
currCell = (event.GetRow(), event.GetCol())
|
|
|
|
# Suppress event if same cell clicked twice in a row.
|
|
# This prevents a single-click from initiating an edit.
|
|
if currCell != (self._lastRow, self._lastCol): event.Skip()
|
|
|
|
def OnRightClick(self, event):
|
|
""" Move grid cursor when a cell is right-clicked """
|
|
self.SetGridCursor( event.GetRow(), event.GetCol() )
|
|
event.Skip()
|
|
|
|
def OnLeftDoubleClick(self, event):
|
|
""" Initiate the cell editor on a double-click """
|
|
# Move grid cursor to double-clicked cell
|
|
if self.CanEnableCellControl():
|
|
self.SetGridCursor( event.GetRow(), event.GetCol() )
|
|
self.EnableCellEditControl(True) # Show the cell editor
|
|
event.Skip()
|
|
|
|
def OnRangeSelect(self, event):
|
|
""" Track which cells are selected so that copy/paste behavior can be implemented """
|
|
# If a single cell is selected, then Selecting() returns False (0)
|
|
# and range coords are entire grid. In this case cancel previous selection.
|
|
# If more than one cell is selected, then Selecting() is True (1)
|
|
# and range accurately reflects selected cells. Save them.
|
|
# If more cells are added to a selection, selecting remains True (1)
|
|
self._selected = None
|
|
if event.Selecting():
|
|
self._selected = ((event.GetTopRow(), event.GetLeftCol()),
|
|
(event.GetBottomRow(), event.GetRightCol()))
|
|
event.Skip()
|
|
|
|
def Copy(self):
|
|
""" Copy the currently selected cells to the clipboard """
|
|
# TODO: raise an error when there are no cells selected?
|
|
if self._selected == None: return
|
|
((r1, c1), (r2, c2)) = self._selected
|
|
|
|
# Build a string to put on the clipboard
|
|
# (Is there a faster way to do this in Python?)
|
|
crlf = chr(13) + chr(10)
|
|
tab = chr(9)
|
|
s = ""
|
|
for row in range(r1, r2+1):
|
|
for col in range(c1, c2):
|
|
s += self.GetCellValue(row,col)
|
|
s += tab
|
|
s += self.GetCellValue(row, c2)
|
|
s += crlf
|
|
|
|
# Put the string on the clipboard
|
|
if wx.TheClipboard.Open():
|
|
wx.TheClipboard.Clear()
|
|
wx.TheClipboard.SetData(wx.TextDataObject(s))
|
|
wx.TheClipboard.Close()
|
|
|
|
def Paste(self):
|
|
""" Paste the contents of the clipboard into the currently selected cells """
|
|
# (Is there a better way to do this?)
|
|
if wx.TheClipboard.Open():
|
|
td = wx.TextDataObject()
|
|
success = wx.TheClipboard.GetData(td)
|
|
wx.TheClipboard.Close()
|
|
if not success: return # Exit on failure
|
|
s = td.GetText() # Get the text
|
|
|
|
crlf = chr(13) + chr(10) # CrLf characters
|
|
tab = chr(9) # Tab character
|
|
|
|
rows = s.split(crlf) # split into rows
|
|
rows = rows[0:-1] # leave out last element, which is always empty
|
|
for i in range(0, len(rows)): # split rows into elements
|
|
rows[i] = rows[i].split(tab)
|
|
|
|
# Get the starting and ending cell range to paste into
|
|
if self._selected == None: # If no cells selected...
|
|
r1 = self.GetGridCursorRow() # Start the paste at the current location
|
|
c1 = self.GetGridCursorCol()
|
|
r2 = self.GetNumberRows()-1 # Go to maximum row and col extents
|
|
c2 = self.GetNumberCols()-1
|
|
else: # If cells selected, only paste there
|
|
((r1, c1), (r2, c2)) = self._selected
|
|
|
|
# Enter data into spreadsheet cells one at a time
|
|
r = r1 # Init row and column counters
|
|
c = c1
|
|
for row in rows: # Loop over all rows
|
|
for element in row: # Loop over all row elements
|
|
self.SetCellValue(r, c, str(element)) # Set cell value
|
|
c += 1 # Increment the column counter
|
|
if c > c2: break # Do not exceed maximum column
|
|
r += 1
|
|
if r > r2: break # Do not exceed maximum row
|
|
c = c1
|
|
|
|
def Clear(self):
|
|
""" Clear the currently selected cells """
|
|
if self._selected == None: # If no selection...
|
|
r = self.GetGridCursorRow() # clear only current cell
|
|
c = self.GetGridCursorCol()
|
|
self.SetCellValue(r, c, "")
|
|
else: # Otherwise clear selected cells
|
|
((r1, c1), (r2, c2)) = self._selected
|
|
for r in range(r1, r2+1):
|
|
for c in range(c1, c2+1):
|
|
self.SetCellValue(r, c, "")
|
|
|
|
def SetNumberRows(self, numRows=1):
|
|
""" Set the number of rows in the sheet """
|
|
# Check for non-negative number
|
|
if numRows < 0: return False
|
|
|
|
# Adjust number of rows
|
|
curRows = self.GetNumberRows()
|
|
if curRows < numRows:
|
|
self.AppendRows(numRows - curRows)
|
|
elif curRows > numRows:
|
|
self.DeleteRows(numRows, curRows - numRows)
|
|
|
|
return True
|
|
|
|
def SetNumberCols(self, numCols=1):
|
|
""" Set the number of columns in the sheet """
|
|
# Check for non-negative number
|
|
if numCols < 0: return False
|
|
|
|
# Adjust number of rows
|
|
curCols = self.GetNumberCols()
|
|
if curCols < numCols:
|
|
self.AppendCols(numCols - curCols)
|
|
elif curCols > numCols:
|
|
self.DeleteCols(numCols, curCols - numCols)
|
|
|
|
return True
|