4b5f3fe655
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@918 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
627 lines
23 KiB
C++
627 lines
23 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: window.h
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// Purpose: wxWindow class
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// Author: Julian Smart
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// Modified by:
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// Created: 17/09/98
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// RCS-ID: $Id$
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// Copyright: (c) Julian Smart
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_WINDOW_H_
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#define _WX_WINDOW_H_
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#ifdef __GNUG__
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#pragma interface "window.h"
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#endif
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#include "wx/gdicmn.h"
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#include "wx/icon.h"
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#include "wx/cursor.h"
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#include "wx/pen.h"
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#include "wx/font.h"
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#include "wx/validate.h"
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#include "wx/event.h"
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#include "wx/string.h"
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#include "wx/list.h"
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#include "wx/region.h"
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#include "wx/accel.h"
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#define wxKEY_SHIFT 1
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#define wxKEY_CTRL 2
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/*
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* Base class for frame, panel, canvas, panel items, dialog box.
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*
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*/
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/*
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* Event handler: windows have themselves as their event handlers
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* by default, but their event handlers could be set to another
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* object entirely. This separation can reduce the amount of
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* derivation required, and allow alteration of a window's functionality
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* (e.g. by a resource editor that temporarily switches event handlers).
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*/
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class WXDLLEXPORT wxWindow;
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class WXDLLEXPORT wxEvent;
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class WXDLLEXPORT wxCommandEvent;
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class WXDLLEXPORT wxKeyEvent;
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class WXDLLEXPORT wxControl;
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class WXDLLEXPORT wxCursor;
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class WXDLLEXPORT wxColourMap;
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class WXDLLEXPORT wxFont;
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class WXDLLEXPORT wxMenu;
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class WXDLLEXPORT wxRectangle;
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class WXDLLEXPORT wxBitmap;
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class WXDLLEXPORT wxSizer;
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class WXDLLEXPORT wxList;
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class WXDLLEXPORT wxLayoutConstraints;
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class WXDLLEXPORT wxMouseEvent;
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class WXDLLEXPORT wxButton;
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class WXDLLEXPORT wxColour;
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class WXDLLEXPORT wxBrush;
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class WXDLLEXPORT wxPen;
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class WXDLLEXPORT wxIcon;
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class WXDLLEXPORT wxDC;
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class WXDLLEXPORT wxValidator;
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#if wxUSE_DRAG_AND_DROP
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class WXDLLEXPORT wxDropTarget;
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#endif
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#if wxUSE_WX_RESOURCES
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class WXDLLEXPORT wxResourceTable;
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class WXDLLEXPORT wxItemResource;
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#endif
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WXDLLEXPORT_DATA(extern const char*) wxPanelNameStr;
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WXDLLEXPORT_DATA(extern const wxSize) wxDefaultSize;
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WXDLLEXPORT_DATA(extern const wxPoint) wxDefaultPosition;
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class WXDLLEXPORT wxWindow: public wxEvtHandler
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{
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DECLARE_ABSTRACT_CLASS(wxWindow)
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friend class WXDLLEXPORT wxDC;
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friend class WXDLLEXPORT wxWindowDC;
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public:
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wxWindow();
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inline wxWindow(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 wxString& name = wxPanelNameStr)
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{
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m_children = new wxList;
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Create(parent, id, pos, size, style, name);
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}
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virtual ~wxWindow();
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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 wxString& name = wxPanelNameStr);
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// Fit the window around the items
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virtual void Fit();
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// Show or hide the window
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virtual bool Show(bool show);
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// Is the window shown?
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virtual bool IsShown() const;
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// Raise the window to the top of the Z order
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virtual void Raise();
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// Lower the window to the bottom of the Z order
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virtual void Lower();
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// Is the window enabled?
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virtual bool IsEnabled() const;
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// For compatibility
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inline bool Enabled() const { return IsEnabled(); }
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// Dialog support: override these and call
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// base class members to add functionality
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// that can't be done using validators.
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// Transfer values to controls. If returns FALSE,
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// it's an application error (pops up a dialog)
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virtual bool TransferDataToWindow();
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// Transfer values from controls. If returns FALSE,
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// transfer failed: don't quit
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virtual bool TransferDataFromWindow();
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// Validate controls. If returns FALSE,
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// validation failed: don't quit
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virtual bool Validate();
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// Return code for dialogs
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inline void SetReturnCode(int retCode);
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inline int GetReturnCode();
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// Set the cursor
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virtual void SetCursor(const wxCursor& cursor);
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inline virtual wxCursor *GetCursor() const { return (wxCursor *)& m_windowCursor; };
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// Get the window with the focus
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static wxWindow *FindFocus();
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// Get character size
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virtual int GetCharHeight() const;
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virtual int GetCharWidth() const;
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// Get overall window size
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virtual void GetSize(int *width, int *height) const;
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// Get window position, relative to parent (or screen if no parent)
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virtual void GetPosition(int *x, int *y) const;
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// Get client (application-useable) size
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virtual void GetClientSize(int *width, int *height) const;
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// Set overall size and position
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virtual void SetSize(int x, int y, int width, int height, int sizeFlags = wxSIZE_AUTO);
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inline virtual void SetSize(int width, int height) { SetSize(-1, -1, width, height, wxSIZE_USE_EXISTING); }
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inline virtual void Move(int x, int y) { SetSize(x, y, -1, -1, wxSIZE_USE_EXISTING); }
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// Set client size
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virtual void SetClientSize(int width, int size);
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// Convert client to screen coordinates
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virtual void ClientToScreen(int *x, int *y) const;
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// Convert screen to client coordinates
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virtual void ScreenToClient(int *x, int *y) const;
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// Set the focus to this window
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virtual void SetFocus();
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// Capture/release mouse
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virtual void CaptureMouse();
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virtual void ReleaseMouse();
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// Enable or disable the window
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virtual void Enable(bool enable);
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#if wxUSE_DRAG_AND_DROP
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// Associate a drop target with this window (if the window already had a drop
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// target, it's deleted!) and return the current drop target (may be NULL).
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void SetDropTarget(wxDropTarget *pDropTarget);
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wxDropTarget *GetDropTarget() const { return m_pDropTarget; }
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#endif
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// Accept files for dragging
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virtual void DragAcceptFiles(bool accept);
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// Update region access
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virtual wxRegion GetUpdateRegion() const;
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virtual bool IsExposed(int x, int y, int w, int h) const;
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virtual bool IsExposed(const wxPoint& pt) const;
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virtual bool IsExposed(const wxRect& rect) const;
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// Set/get the window title
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virtual inline void SetTitle(const wxString& WXUNUSED(title)) {};
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inline virtual wxString GetTitle() const { return wxString(""); };
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// Most windows have the concept of a label; for frames, this is the
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// title; for items, this is the label or button text.
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inline virtual wxString GetLabel() const { return GetTitle(); }
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// Set/get the window name (used for resource setting in X)
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inline virtual wxString GetName() const;
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inline virtual void SetName(const wxString& name);
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// Centre the window
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virtual void Centre(int direction) ;
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inline void Center(int direction = wxHORIZONTAL) { Centre(direction); }
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// Popup a menu
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virtual bool PopupMenu(wxMenu *menu, int x, int y);
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// Send the window a refresh event
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virtual void Refresh(bool eraseBack = TRUE, const wxRectangle *rect = NULL);
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// New functions that will replace the above.
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virtual void SetScrollbar(int orient, int pos, int thumbVisible,
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int range, bool refresh = TRUE);
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virtual void SetScrollPos(int orient, int pos, bool refresh = TRUE);
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virtual int GetScrollPos(int orient) const;
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virtual int GetScrollRange(int orient) const;
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virtual int GetScrollThumb(int orient) const;
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virtual void ScrollWindow(int dx, int dy, const wxRectangle *rect = NULL);
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// Caret manipulation
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virtual void CreateCaret(int w, int h);
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virtual void CreateCaret(const wxBitmap *bitmap);
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virtual void DestroyCaret();
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virtual void ShowCaret(bool show);
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virtual void SetCaretPos(int x, int y);
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virtual void GetCaretPos(int *x, int *y) const;
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// Tell window how much it can be sized
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virtual void SetSizeHints(int minW = -1, int minH = -1, int maxW = -1, int maxH = -1, int incW = -1, int incH = -1);
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// Set/get the window's identifier
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inline int GetId() const;
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inline void SetId(int id);
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virtual void SetAcceleratorTable(const wxAcceleratorTable& accel);
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inline virtual wxAcceleratorTable& GetAcceleratorTable() const { return (wxAcceleratorTable&) m_acceleratorTable; }
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// Make the window modal (all other windows unresponsive)
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virtual void MakeModal(bool modal);
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// Get the private handle (platform-dependent)
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inline void *GetHandle() const;
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// Set/get the window's relatives
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inline wxWindow *GetParent() const;
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inline void SetParent(wxWindow *p) ;
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inline wxWindow *GetGrandParent() const;
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inline wxList *GetChildren() const;
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// Set/get the window's font
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virtual void SetFont(const wxFont& f);
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inline virtual wxFont *GetFont() const;
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// Set/get the window's validator
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void SetValidator(const wxValidator& validator);
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inline wxValidator *GetValidator() const;
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// Set/get the window's style
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inline void SetWindowStyleFlag(long flag);
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inline long GetWindowStyleFlag() const;
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// Handle a control command
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virtual void OnCommand(wxWindow& win, wxCommandEvent& event);
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// Set/get event handler
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inline void SetEventHandler(wxEvtHandler *handler);
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inline wxEvtHandler *GetEventHandler() const;
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// Push/pop event handler (i.e. allow a chain of event handlers
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// be searched)
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void PushEventHandler(wxEvtHandler *handler) ;
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wxEvtHandler *PopEventHandler(bool deleteHandler = FALSE) ;
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// Close the window by calling OnClose, posting a deletion
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virtual bool Close(bool force = FALSE);
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// Destroy the window (delayed, if a managed window)
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virtual bool Destroy() ;
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// Mode for telling default OnSize members to
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// call Layout(), if not using Sizers, just top-down constraints
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inline void SetAutoLayout(bool a);
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inline bool GetAutoLayout() const;
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// Set/get constraints
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inline wxLayoutConstraints *GetConstraints() const;
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void SetConstraints(wxLayoutConstraints *c);
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// Set/get window background colour
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virtual void SetBackgroundColour(const wxColour& col);
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inline virtual wxColour GetBackgroundColour() const;
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// Set/get window foreground colour
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virtual void SetForegroundColour(const wxColour& col);
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inline virtual wxColour GetForegroundColour() const;
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// Get the default button, if there is one
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inline virtual wxButton *GetDefaultItem() const;
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inline virtual void SetDefaultItem(wxButton *but);
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// Override to define new behaviour for default action (e.g. double clicking
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// on a listbox)
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virtual void OnDefaultAction(wxControl *initiatingItem);
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// Resource loading
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#if wxUSE_WX_RESOURCES
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virtual bool LoadFromResource(wxWindow *parent, const wxString& resourceName, const wxResourceTable *table = NULL);
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virtual wxControl *CreateItem(const wxItemResource* childResource, const wxItemResource* parentResource,
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const wxResourceTable *table = (const wxResourceTable *) NULL);
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#endif
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virtual void GetTextExtent(const wxString& string, int *x, int *y,
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int *descent = NULL,
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int *externalLeading = NULL,
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const wxFont *theFont = NULL, bool use16 = FALSE) const;
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// Is the window retained?
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inline bool IsRetained() const;
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// Warp the pointer the given position
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virtual void WarpPointer(int x_pos, int y_pos) ;
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// Clear the window
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virtual void Clear();
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// Find a window by id or name
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virtual wxWindow *FindWindow(long id);
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virtual wxWindow *FindWindow(const wxString& name);
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// Constraint operations
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bool Layout();
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void SetSizer(wxSizer *sizer); // Adds sizer child to this window
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inline wxSizer *GetSizer() const ;
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inline wxWindow *GetSizerParent() const ;
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inline void SetSizerParent(wxWindow *win);
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// Do Update UI processing for controls
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void UpdateWindowUI();
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void OnEraseBackground(wxEraseEvent& event);
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void OnChar(wxKeyEvent& event);
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void OnPaint(wxPaintEvent& event);
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void OnIdle(wxIdleEvent& event);
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// Does this window want to accept keyboard focus?
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virtual bool AcceptsFocus() const;
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virtual void PrepareDC( wxDC &dc ) {};
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public:
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////////////////////////////////////////////////////////////////////////
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//// IMPLEMENTATION
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// For implementation purposes - sometimes decorations make the client area
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// smaller
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virtual wxPoint GetClientAreaOrigin() const;
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// Makes an adjustment to the window position (for example, a frame that has
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// a toolbar that it manages itself).
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virtual void AdjustForParentClientOrigin(int& x, int& y, int sizeFlags);
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// Executes the default message
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virtual long Default();
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/* TODO: you may need something like this
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// Determine whether 3D effects are wanted
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virtual WXDWORD Determine3DEffects(WXDWORD defaultBorderStyle, bool *want3D);
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*/
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virtual void AddChild(wxWindow *child); // Adds reference to the child object
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virtual void RemoveChild(wxWindow *child); // Removes reference to child
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// (but doesn't delete the child object)
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virtual void DestroyChildren(); // Removes and destroys all children
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inline bool IsBeingDeleted() const { return FALSE; } // TODO: Should probably eliminate this
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// Constraint implementation
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void UnsetConstraints(wxLayoutConstraints *c);
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inline wxList *GetConstraintsInvolvedIn() const ;
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// Back-pointer to other windows we're involved with, so if we delete
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// this window, we must delete any constraints we're involved with.
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void AddConstraintReference(wxWindow *otherWin);
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void RemoveConstraintReference(wxWindow *otherWin);
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void DeleteRelatedConstraints();
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virtual void ResetConstraints();
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virtual void SetConstraintSizes(bool recurse = TRUE);
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virtual bool LayoutPhase1(int *noChanges);
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virtual bool LayoutPhase2(int *noChanges);
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virtual bool DoPhase(int);
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// Transforms from sizer coordinate space to actual
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// parent coordinate space
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virtual void TransformSizerToActual(int *x, int *y) const ;
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// Set size with transformation to actual coordinates if nec.
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virtual void SizerSetSize(int x, int y, int w, int h);
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virtual void SizerMove(int x, int y);
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// Only set/get the size/position of the constraint (if any)
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virtual void SetSizeConstraint(int x, int y, int w, int h);
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virtual void MoveConstraint(int x, int y);
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virtual void GetSizeConstraint(int *w, int *h) const ;
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virtual void GetClientSizeConstraint(int *w, int *h) const ;
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virtual void GetPositionConstraint(int *x, int *y) const ;
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// Dialog units translations. Implemented in wincmn.cpp.
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wxPoint ConvertPixelsToDialog(const wxPoint& pt) ;
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wxPoint ConvertDialogToPixels(const wxPoint& pt) ;
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inline wxSize ConvertPixelsToDialog(const wxSize& sz)
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{ wxPoint pt(ConvertPixelsToDialog(wxPoint(sz.x, sz.y))); return wxSize(pt.x, pt.y); }
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inline wxSize ConvertDialogToPixels(const wxSize& sz)
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{ wxPoint pt(ConvertDialogToPixels(wxPoint(sz.x, sz.y))); return wxSize(pt.x, pt.y); }
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wxObject *GetChild(int number) const ;
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// Generates a new id for controls
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static int NewControlId();
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// Responds to colour changes: passes event on to children.
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void OnSysColourChanged(wxSysColourChangedEvent& event);
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// Transfers data to any child controls
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void OnInitDialog(wxInitDialogEvent& event);
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// Sends an OnInitDialog event, which in turns transfers data to
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// to the window via validators.
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virtual void InitDialog();
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/// Motif-specific
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void CanvasGetSize(int* width, int* height) const; // If have drawing area
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void CanvasGetClientSize(int *width, int *height) const;
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void CanvasGetPosition(int *x, int *y) const; // If have drawing area
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void CanvasSetClientSize(int width, int size);
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void CanvasSetSize(int x, int y, int width, int height, int sizeFlags = wxSIZE_AUTO);
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// Gives window a chance to do something in response to a size
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// message, e.g. arrange status bar, toolbar etc.
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virtual bool PreResize() { return TRUE; }
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// Get main widget for this window, e.g. a text widget
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virtual WXWidget GetMainWidget() const;
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// Get the widget that corresponds to the label (for font setting, label setting etc.)
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virtual WXWidget GetLabelWidget() const { return GetMainWidget(); }
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// Get the client widget for this window (something we can
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// create other windows on)
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virtual WXWidget GetClientWidget() const;
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// Get the top widget for this window, e.g. the scrolled widget parent
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// of a multi-line text widget. Top means, top in the window hierarchy
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// that implements this window.
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virtual WXWidget GetTopWidget() const;
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virtual void SetMainWidget(WXWidget w) { m_mainWidget = w; }
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bool CanAddEventHandler() const { return m_canAddEventHandler; }
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void SetCanAddEventHandler(bool flag) { m_canAddEventHandler = flag; }
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// Get the underlying X window and display
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virtual WXWindow GetXWindow() const;
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virtual WXDisplay *GetXDisplay() const;
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virtual WXPixmap GetBackingPixmap() const { return m_backingPixmap; }
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inline int GetPixmapWidth() const { return m_pixmapWidth; }
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inline int GetPixmapHeight() const { return m_pixmapHeight; }
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virtual WXRegion GetPaintRegion() const { return m_paintRegion; }
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// Change properties
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virtual void ChangeFont(bool keepOriginalSize = TRUE); // Change to the current font (often overridden)
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virtual void DoChangeForegroundColour(WXWidget widget, wxColour& foregroundColour);
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virtual void DoChangeBackgroundColour(WXWidget widget, wxColour& backgroundColour, bool changeArmColour = FALSE);
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// These to be overridden as needed (may change several widgets)
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virtual void ChangeBackgroundColour(); // Change background and foreground colour using current
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// background colour setting (Motif generates
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// foreground based on background)
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virtual void ChangeForegroundColour(); // Change foreground colour using current
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// foreground colour setting
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// Adds the widget to the hash table and adds event handlers.
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bool AttachWidget (wxWindow* parent, WXWidget mainWidget,
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WXWidget formWidget, int x, int y, int width, int height);
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bool DetachWidget(WXWidget widget);
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// Generates a paint event
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virtual void DoPaint();
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////////////////////////////////////////////////////////////////////////
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//// PROTECTED DATA
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protected:
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int m_windowId;
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long m_windowStyle; // Store the window's style
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wxEvtHandler * m_windowEventHandler; // Usually is 'this'
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wxLayoutConstraints * m_constraints; // Constraints for this window
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wxList * m_constraintsInvolvedIn; // List of constraints we're involved in
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wxSizer * m_windowSizer; // Window's top-level sizer (if any)
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wxWindow * m_sizerParent; // Window's parent sizer (if any)
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bool m_autoLayout; // Whether to call Layout() in OnSize
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wxWindow * m_windowParent; // Each window always knows its parent
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wxValidator * m_windowValidator;
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int m_minSizeX;
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int m_minSizeY;
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int m_maxSizeX;
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int m_maxSizeY;
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// Caret data
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int m_caretWidth;
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int m_caretHeight;
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bool m_caretEnabled;
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bool m_caretShown;
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wxFont m_windowFont; // Window's font
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wxCursor m_windowCursor; // Window's cursor
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wxString m_windowName; // Window name
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wxButton * m_defaultItem;
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wxColour m_backgroundColour ;
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wxColour m_foregroundColour ;
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wxAcceleratorTable m_acceleratorTable;
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#if wxUSE_DRAG_AND_DROP
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wxDropTarget *m_pDropTarget; // the current drop target or NULL
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#endif //USE_DRAG_AND_DROP
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public:
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wxRegion m_updateRegion;
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wxList * m_children; // Window's children
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int m_returnCode;
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public:
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/// Motif-specific
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bool m_canAddEventHandler;
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bool m_button1Pressed;
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bool m_button2Pressed;
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bool m_button3Pressed;
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// For double-click detection
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long m_lastTS; // last timestamp
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int m_lastButton; // last pressed button
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wxList m_updateRects; // List of wxRectangles representing damaged region
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bool m_isShown;
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WXRegion m_paintRegion; // Clip region generated by expose event
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protected:
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WXWidget m_mainWidget;
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WXWidget m_hScrollBar;
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WXWidget m_vScrollBar;
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WXWidget m_borderWidget;
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WXWidget m_scrolledWindow;
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WXWidget m_drawingArea;
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bool m_winCaptured;
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bool m_hScroll;
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bool m_vScroll;
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WXPixmap m_backingPixmap;
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int m_pixmapWidth;
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int m_pixmapHeight;
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int m_pixmapOffsetX;
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int m_pixmapOffsetY;
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int m_scrollPosX; // Store the last scroll pos,
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int m_scrollPosY; // since in wxWin the pos isn't
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// set automatically by system
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DECLARE_EVENT_TABLE()
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};
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////////////////////////////////////////////////////////////////////////
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//// INLINES
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inline void *wxWindow::GetHandle() const { return (void *)NULL; }
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inline int wxWindow::GetId() const { return m_windowId; }
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inline void wxWindow::SetId(int id) { m_windowId = id; }
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inline wxWindow *wxWindow::GetParent() const { return m_windowParent; }
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inline void wxWindow::SetParent(wxWindow *p) { m_windowParent = p; }
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inline wxWindow *wxWindow::GetGrandParent() const { return (m_windowParent ? m_windowParent->m_windowParent : (wxWindow*) NULL); }
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inline wxList *wxWindow::GetChildren() const { return m_children; }
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inline wxFont *wxWindow::GetFont() const { return (wxFont *) & m_windowFont; }
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inline wxString wxWindow::GetName() const { return m_windowName; }
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inline void wxWindow::SetName(const wxString& name) { m_windowName = name; }
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inline long wxWindow::GetWindowStyleFlag() const { return m_windowStyle; }
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inline void wxWindow::SetWindowStyleFlag(long flag) { m_windowStyle = flag; }
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inline void wxWindow::SetEventHandler(wxEvtHandler *handler) { m_windowEventHandler = handler; }
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inline wxEvtHandler *wxWindow::GetEventHandler() const { return m_windowEventHandler; }
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inline void wxWindow::SetAutoLayout(bool a) { m_autoLayout = a; }
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inline bool wxWindow::GetAutoLayout() const { return m_autoLayout; }
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inline wxLayoutConstraints *wxWindow::GetConstraints() const { return m_constraints; }
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inline wxColour wxWindow::GetBackgroundColour() const { return m_backgroundColour; };
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inline wxColour wxWindow::GetForegroundColour() const { return m_foregroundColour; };
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inline wxButton *wxWindow::GetDefaultItem() const { return m_defaultItem; }
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inline void wxWindow::SetDefaultItem(wxButton *but) { m_defaultItem = but; }
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inline bool wxWindow::IsRetained() const { return ((m_windowStyle & wxRETAINED) == wxRETAINED); }
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inline wxList *wxWindow::GetConstraintsInvolvedIn() const { return m_constraintsInvolvedIn; }
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inline wxSizer *wxWindow::GetSizer() const { return m_windowSizer; }
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inline wxWindow *wxWindow::GetSizerParent() const { return m_sizerParent; }
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inline void wxWindow::SetSizerParent(wxWindow *win) { m_sizerParent = win; }
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inline wxValidator *wxWindow::GetValidator() const { return m_windowValidator; }
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inline void wxWindow::SetReturnCode(int retCode) { m_returnCode = retCode; }
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inline int wxWindow::GetReturnCode() { return m_returnCode; }
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// Get the active window.
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wxWindow* WXDLLEXPORT wxGetActiveWindow();
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WXDLLEXPORT_DATA(extern wxList) wxTopLevelWindows;
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#endif
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// _WX_WINDOW_H_
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