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248 lines
8.8 KiB
C++
248 lines
8.8 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: wx/control.h
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// Purpose: wxControl common interface
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// Author: Vadim Zeitlin
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// Modified by:
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// Created: 26.07.99
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// Copyright: (c) wxWidgets team
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_CONTROL_H_BASE_
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#define _WX_CONTROL_H_BASE_
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// ----------------------------------------------------------------------------
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// headers
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// ----------------------------------------------------------------------------
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#include "wx/defs.h"
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#if wxUSE_CONTROLS
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#include "wx/window.h" // base class
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extern WXDLLIMPEXP_DATA_CORE(const char) wxControlNameStr[];
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// ----------------------------------------------------------------------------
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// Ellipsize() constants
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// ----------------------------------------------------------------------------
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enum wxEllipsizeFlags
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{
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wxELLIPSIZE_FLAGS_NONE = 0,
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wxELLIPSIZE_FLAGS_PROCESS_MNEMONICS = 1,
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wxELLIPSIZE_FLAGS_EXPAND_TABS = 2,
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wxELLIPSIZE_FLAGS_DEFAULT = wxELLIPSIZE_FLAGS_PROCESS_MNEMONICS |
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wxELLIPSIZE_FLAGS_EXPAND_TABS
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};
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// NB: Don't change the order of these values, they're the same as in
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// PangoEllipsizeMode enum.
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enum wxEllipsizeMode
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{
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wxELLIPSIZE_NONE,
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wxELLIPSIZE_START,
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wxELLIPSIZE_MIDDLE,
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wxELLIPSIZE_END
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};
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// ----------------------------------------------------------------------------
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// wxControl is the base class for all controls
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// ----------------------------------------------------------------------------
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class WXDLLIMPEXP_CORE wxControlBase : public wxWindow
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{
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public:
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wxControlBase() { }
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virtual ~wxControlBase();
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// Create() function adds the validator parameter
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bool Create(wxWindow *parent, wxWindowID id,
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const wxPoint& pos = wxDefaultPosition,
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const wxSize& size = wxDefaultSize,
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long style = 0,
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const wxValidator& validator = wxDefaultValidator,
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const wxString& name = wxControlNameStr);
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// get the control alignment (left/right/centre, top/bottom/centre)
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int GetAlignment() const { return m_windowStyle & wxALIGN_MASK; }
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// set label with mnemonics
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virtual void SetLabel(const wxString& label)
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{
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m_labelOrig = label;
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InvalidateBestSize();
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wxWindow::SetLabel(label);
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}
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// return the original string, as it was passed to SetLabel()
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// (i.e. with wx-style mnemonics)
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virtual wxString GetLabel() const { return m_labelOrig; }
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// set label text (mnemonics will be escaped)
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virtual void SetLabelText(const wxString& text)
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{
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SetLabel(EscapeMnemonics(text));
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}
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// get just the text of the label, without mnemonic characters ('&')
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virtual wxString GetLabelText() const { return GetLabelText(GetLabel()); }
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#if wxUSE_MARKUP
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// Set the label with markup (and mnemonics). Markup is a simple subset of
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// HTML with tags such as <b>, <i> and <span>. By default it is not
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// supported i.e. all the markup is simply stripped and SetLabel() is
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// called but some controls in some ports do support this already and in
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// the future most of them should.
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//
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// Notice that, being HTML-like, markup also supports XML entities so '<'
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// should be encoded as "<" and so on, a bare '<' in the input will
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// likely result in an error. As an exception, a bare '&' is allowed and
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// indicates that the next character is a mnemonic. To insert a literal '&'
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// in the control you need to use "&" in the input string.
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//
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// Returns true if the label was set, even if the markup in it was ignored.
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// False is only returned if we failed to parse the label.
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bool SetLabelMarkup(const wxString& markup)
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{
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return DoSetLabelMarkup(markup);
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}
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#endif // wxUSE_MARKUP
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// controls by default inherit the colours of their parents, if a
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// particular control class doesn't want to do it, it can override
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// ShouldInheritColours() to return false
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virtual bool ShouldInheritColours() const { return true; }
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// WARNING: this doesn't work for all controls nor all platforms!
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//
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// simulates the event of given type (i.e. wxButton::Command() is just as
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// if the button was clicked)
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virtual void Command(wxCommandEvent &event);
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virtual bool SetFont(const wxFont& font);
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// wxControl-specific processing after processing the update event
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virtual void DoUpdateWindowUI(wxUpdateUIEvent& event);
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wxSize GetSizeFromTextSize(int xlen, int ylen = -1) const
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{ return DoGetSizeFromTextSize(xlen, ylen); }
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wxSize GetSizeFromTextSize(const wxSize& tsize) const
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{ return DoGetSizeFromTextSize(tsize.x, tsize.y); }
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// static utilities for mnemonics char (&) handling
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// ------------------------------------------------
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// returns the given string without mnemonic characters ('&')
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static wxString GetLabelText(const wxString& label);
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// returns the given string without mnemonic characters ('&')
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// this function is identic to GetLabelText() and is provided for clarity
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// and for symmetry with the wxStaticText::RemoveMarkup() function.
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static wxString RemoveMnemonics(const wxString& str);
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// escapes (by doubling them) the mnemonics
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static wxString EscapeMnemonics(const wxString& str);
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// miscellaneous static utilities
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// ------------------------------
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// replaces parts of the given (multiline) string with an ellipsis if needed
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static wxString Ellipsize(const wxString& label, const wxDC& dc,
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wxEllipsizeMode mode, int maxWidth,
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int flags = wxELLIPSIZE_FLAGS_DEFAULT);
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// return the accel index in the string or -1 if none and puts the modified
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// string into second parameter if non NULL
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static int FindAccelIndex(const wxString& label,
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wxString *labelOnly = NULL);
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// this is a helper for the derived class GetClassDefaultAttributes()
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// implementation: it returns the right colours for the classes which
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// contain something else (e.g. wxListBox, wxTextCtrl, ...) instead of
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// being simple controls (such as wxButton, wxCheckBox, ...)
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static wxVisualAttributes
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GetCompositeControlsDefaultAttributes(wxWindowVariant variant);
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protected:
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// choose the default border for this window
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virtual wxBorder GetDefaultBorder() const;
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// creates the control (calls wxWindowBase::CreateBase inside) and adds it
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// to the list of parents children
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bool CreateControl(wxWindowBase *parent,
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wxWindowID id,
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const wxPoint& pos,
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const wxSize& size,
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long style,
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const wxValidator& validator,
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const wxString& name);
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#if wxUSE_MARKUP
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// This function may be overridden in the derived classes to implement
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// support for labels with markup. The base class version simply strips the
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// markup and calls SetLabel() with the remaining text.
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virtual bool DoSetLabelMarkup(const wxString& markup);
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#endif // wxUSE_MARKUP
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// override this to return the total control's size from a string size
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virtual wxSize DoGetSizeFromTextSize(int xlen, int ylen = -1) const;
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// initialize the common fields of wxCommandEvent
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void InitCommandEvent(wxCommandEvent& event) const;
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// Ellipsize() helper:
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static wxString DoEllipsizeSingleLine(const wxString& label, const wxDC& dc,
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wxEllipsizeMode mode, int maxWidth,
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int replacementWidth);
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#if wxUSE_MARKUP
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// Remove markup from the given string, returns empty string on error i.e.
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// if markup was syntactically invalid.
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static wxString RemoveMarkup(const wxString& markup);
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#endif // wxUSE_MARKUP
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// this field contains the label in wx format, i.e. with '&' mnemonics,
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// as it was passed to the last SetLabel() call
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wxString m_labelOrig;
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wxDECLARE_NO_COPY_CLASS(wxControlBase);
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};
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// ----------------------------------------------------------------------------
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// include platform-dependent wxControl declarations
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// ----------------------------------------------------------------------------
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#if defined(__WXUNIVERSAL__)
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#include "wx/univ/control.h"
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#elif defined(__WXMSW__)
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#include "wx/msw/control.h"
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#elif defined(__WXMOTIF__)
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#include "wx/motif/control.h"
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#elif defined(__WXGTK20__)
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#include "wx/gtk/control.h"
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#elif defined(__WXGTK__)
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#include "wx/gtk1/control.h"
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#elif defined(__WXMAC__)
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#include "wx/osx/control.h"
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#elif defined(__WXCOCOA__)
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#include "wx/cocoa/control.h"
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#elif defined(__WXPM__)
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#include "wx/os2/control.h"
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#endif
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#endif // wxUSE_CONTROLS
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#endif
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// _WX_CONTROL_H_BASE_
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