wxWidgets/docs/latex/wx/filepicker.tex

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%% Name: filepicker.tex
%% Purpose: wxFilePickerCtrl and wxFileDirPickerEvent documentation
%% Author: Francesco Montorsi
%% Created: 2006-05-12
%% RCS-ID: $Id$
%% Copyright: (c) 2006 Francesco Montorsi
%% License: wxWindows license
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\section{\class{wxFilePickerCtrl}}\label{wxfilepickerctrl}
This control allows the user to select a file. The generic implementation is
a button which brings up a \helpref{wxFileDialog}{wxfiledialog} when clicked. Native implementation
may differ but this is usually a (small) widget which give access to the file-chooser
dialog.
It is only available if \texttt{wxUSE\_FILEPICKERCTRL} is set to $1$ (the default).
\wxheading{Derived from}
\helpref{wxPickerBase}{wxpickerbase}\\
\helpref{wxControl}{wxcontrol}\\
\helpref{wxWindow}{wxwindow}\\
\helpref{wxEvtHandler}{wxevthandler}\\
\helpref{wxObject}{wxobject}
\wxheading{Include files}
<wx/filepicker.h>
\wxheading{Window styles}
\twocolwidtha{5cm}%
\begin{twocollist}\itemsep=0pt
\twocolitem{\windowstyle{wxFLP\_DEFAULT\_STYLE}}{The default style: includes
wxFLP\_OPEN | wxFLP\_FILE\_MUST\_EXIST and, under wxMSW only,
wxFLP\_USE\_TEXTCTRL.}
\twocolitem{\windowstyle{wxFLP\_USE\_TEXTCTRL}}{Creates a text control to the left of the
picker button which is completely managed by the \helpref{wxFilePickerCtrl}{wxfilepickerctrl}
and which can be used by the user to specify a path (see \helpref{SetPath}{wxfilepickerctrlsetpath}).
The text control is automatically synchronized with button's value. Use functions defined in \helpref{wxPickerBase}{wxpickerbase} to modify the text control.}
\twocolitem{\windowstyle{wxFLP\_OPEN}}{Creates a picker which allows the user to select a file to open.}
\twocolitem{\windowstyle{wxFLP\_SAVE}}{Creates a picker which allows the user to select a file to save.}
\twocolitem{\windowstyle{wxFLP\_OVERWRITE\_PROMPT}}{Can be combined with wxFLP\_SAVE only: ask confirmation to the user before selecting a file.}
\twocolitem{\windowstyle{wxFLP\_FILE\_MUST\_EXIST}}{Can be combined with wxFLP\_OPEN only: the selected file must be an existing file.}
\twocolitem{\windowstyle{wxFLP\_CHANGE\_DIR}}{Change current working directory on each user file selection change.}
NB: the wxFD\_MULTIPLE style of wxFileDialog is not supported!
\end{twocollist}
\wxheading{Event handling}
\twocolwidtha{7cm}%
\begin{twocollist}\itemsep=0pt
\twocolitem{{\bf EVT\_FILEPICKER\_CHANGED(id, func)}}{The user changed the file
selected in the control either using the button or using text control (see
wxFLP\_USE\_TEXTCTRL; note that in this case the event is fired only if the
user's input is valid, e.g. an existing file path if wxFLP\_FILE\_MUST\_EXIST
was given).}
\end{twocollist}
\wxheading{See also}
\helpref{wxFileDialog}{wxfiledialog},\\
\helpref{wxFileDirPickerEvent}{wxfiledirpickerevent}
\latexignore{\rtfignore{\wxheading{Members}}}
\membersection{wxFilePickerCtrl::wxFilePickerCtrl}\label{wxfilepickerctrl}
\func{}{wxFilePickerCtrl}{\param{wxWindow *}{parent},\rtfsp
\param{wxWindowID}{ id},\rtfsp
\param{const wxString\& }{path = wxEmptyString},\rtfsp
\param{const wxString\& }{message = ``Select a file"},\rtfsp
\param{const wxString\& }{wildcard = ``*.*"},\rtfsp
\param{const wxPoint\& }{pos = wxDefaultPosition},\rtfsp
\param{const wxSize\& }{size = wxDefaultSize},\rtfsp
\param{long}{ style = wxFLP\_DEFAULT\_STYLE},\rtfsp
\param{const wxValidator\& }{validator = wxDefaultValidator},
\param{const wxString\& }{name = ``filepickerctrl"}}
Initializes the object and calls \helpref{Create}{wxfilepickerctrlcreate} with
all the parameters.
\membersection{wxFilePickerCtrl::Create}\label{wxfilepickerctrlcreate}
\func{bool}{Create}{\param{wxWindow *}{parent},\rtfsp
\param{wxWindowID}{ id},\rtfsp
\param{const wxString\& }{path = wxEmptyString},\rtfsp
\param{const wxString\& }{message = ``Select a file"},\rtfsp
\param{const wxString\& }{wildcard = ``*.*"},\rtfsp
\param{const wxPoint\& }{pos = wxDefaultPosition},\rtfsp
\param{const wxSize\& }{size = wxDefaultSize},\rtfsp
\param{long}{ style = wxFLP\_DEFAULT\_STYLE},\rtfsp
\param{const wxValidator\& }{validator = wxDefaultValidator},
\param{const wxString\& }{name = ``filepickerctrl"}}
\wxheading{Parameters}
\docparam{parent}{Parent window, must not be non-\texttt{NULL}.}
\docparam{id}{The identifier for the control.}
\docparam{path}{The initial file shown in the control. Must be a valid path to a file or the empty string.}
\docparam{message}{The message shown to the user in the \helpref{wxFileDialog}{wxfiledialog} shown by the control.}
\docparam{wildcard}{A wildcard which defines user-selectable files (use the same syntax as for \helpref{wxFileDialog}{wxfiledialog}'s wildcards).}
\docparam{pos}{Initial position.}
\docparam{size}{Initial size.}
\docparam{style}{The window style, see {\tt wxFLP\_*} flags.}
\docparam{validator}{Validator which can be used for additional date checks.}
\docparam{name}{Control name.}
\wxheading{Return value}
\true if the control was successfully created or \false if creation failed.
\membersection{wxFilePickerCtrl::GetPath}\label{wxfilepickerctrlgetpath}
\constfunc{wxString}{GetPath}{\void}
Returns the currently selected file.
\membersection{wxFilePickerCtrl::SetPath}\label{wxfilepickerctrlsetpath}
\func{void}{SetPath}{\param{const wxString \&}{filename}}
Sets the currently selected file. This must be a valid file if
{\tt wxFLP\_FILE\_MUST\_EXIST} style was given.
%% wxFileDirPickerEvent documentation
\section{\class{wxFileDirPickerEvent}}\label{wxfiledirpickerevent}
This event class is used for the events generated by
\helpref{wxFilePickerCtrl}{wxfilepickerctrl} and by \helpref{wxDirPickerCtrl}{wxdirpickerctrl}.
\wxheading{Derived from}
\helpref{wxCommandEvent}{wxcommandevent}\\
\helpref{wxEvent}{wxevent}\\
\helpref{wxObject}{wxobject}
\wxheading{Include files}
<wx/filepicker.h>
\wxheading{Event handling}
To process input from a wxFilePickerCtrl or from a wxDirPickerCtrl, use one of these event handler macros to
direct input to member function that take a \helpref{wxFileDirPickerEvent}{wxfiledirpickerevent} argument:
\twocolwidtha{7cm}
\begin{twocollist}
\twocolitem{{\bf EVT\_FILEPICKER\_CHANGED(id, func)}}{Generated whenever the selected file changes.}
\twocolitem{{\bf EVT\_DIRPICKER\_CHANGED(id, func)}}{Generated whenever the selected directory changes.}
\end{twocollist}%
\wxheading{See also}
\helpref{wxfilepickerctrl}{wxfilepickerctrl}
\latexignore{\rtfignore{\wxheading{Members}}}
\membersection{wxFileDirPickerEvent::wxFileDirPickerEvent}\label{wxfiledirpickereventctor}
\func{}{wxFileDirPickerEvent}{\param{wxEventType}{ type}, \param{wxObject *}{ generator}, \param{int}{ id}, \param{const wxString&}{ path}}
The constructor is not normally used by the user code.
\membersection{wxFileDirPickerEvent::GetPath}\label{wxfiledirpickereventgetpath}
\constfunc{wxString}{GetPath}{\void}
Retrieve the file/directory the user has just selected.
\membersection{wxFileDirPickerEvent::SetPath}\label{wxfiledirpickereventsetpath}
\func{void}{SetPath}{\param{const wxString \&}{path}}
Set the file/directory associated with the event.