include/wx/motif/window.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        window.h
   3 // Purpose:     wxWindow class
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     17/09/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef _WX_WINDOW_H_
  13 #define _WX_WINDOW_H_
  14
  15 #ifdef __GNUG__
  16     #pragma interface "window.h"
  17 #endif
  18
  19 #include "wx/region.h"
  20
  21 // ----------------------------------------------------------------------------
  22 // wxWindow class for Motif - see also wxWindowBase
  23 // ----------------------------------------------------------------------------
  24
  25 class wxWindow : public wxWindowBase
  26 {
  27 friend class WXDLLEXPORT wxDC;
  28 friend class WXDLLEXPORT wxWindowDC;
  29
  30 public:
  31     wxWindow() { Init(); }
  32
  33     wxWindow(wxWindow *parent,
  34              wxWindowID id,
  35              const wxPoint& pos = wxDefaultPosition,
  36              const wxSize& size = wxDefaultSize,
  37              long style = 0,
  38              const wxString& name = wxPanelNameStr)
  39     {
  40         Init();
  41         Create(parent, id, pos, size, style, name);
  42     }
  43
  44     virtual ~wxWindow();
  45
  46     bool Create(wxWindow *parent,
  47                 wxWindowID id,
  48                 const wxPoint& pos = wxDefaultPosition,
  49                 const wxSize& size = wxDefaultSize,
  50                 long style = 0,
  51                 const wxString& name = wxPanelNameStr);
  52
  53     // implement base class pure virtuals
  54     virtual void SetTitle( const wxString& title);
  55     virtual wxString GetTitle() const;
  56
  57     virtual void Raise();
  58     virtual void Lower();
  59
  60     virtual bool Show( bool show = TRUE );
  61     virtual bool Enable( bool enable = TRUE );
  62
  63     virtual void SetFocus();
  64
  65     virtual void WarpPointer(int x, int y);
  66     virtual void CaptureMouse();
  67     virtual void ReleaseMouse();
  68
  69     virtual void Refresh( bool eraseBackground = TRUE,
  70                           const wxRect *rect = (const wxRect *) NULL );
  71     virtual void Clear();
  72
  73     virtual bool SetBackgroundColour( const wxColour &colour );
  74     virtual bool SetForegroundColour( const wxColour &colour );
  75
  76     virtual bool SetCursor( const wxCursor &cursor );
  77     virtual bool SetFont( const wxFont &font );
  78
  79     virtual int GetCharHeight() const;
  80     virtual int GetCharWidth() const;
  81     virtual void GetTextExtent(const wxString& string,
  82                                int *x, int *y,
  83                                int *descent = (int *) NULL,
  84                                int *externalLeading = (int *) NULL,
  85                                const wxFont *theFont = (const wxFont *) NULL)
  86                                const;
  87
  88     virtual void SetScrollbar( int orient, int pos, int thumbVisible,
  89                                int range, bool refresh = TRUE );
  90     virtual void SetScrollPos( int orient, int pos, bool refresh = TRUE );
  91     virtual int GetScrollPos( int orient ) const;
  92     virtual int GetScrollThumb( int orient ) const;
  93     virtual int GetScrollRange( int orient ) const;
  94     virtual void ScrollWindow( int dx, int dy,
  95                                const wxRect* rect = (wxRect *) NULL );
  96
  97     virtual void SetSizeHints(int minW, int minH,
  98                               int maxW = -1, int maxH = -1,
  99                               int incW = -1, int incH = -1);
 100 #if wxUSE_DRAG_AND_DROP
 101     virtual void SetDropTarget( wxDropTarget *dropTarget );
 102 #endif // wxUSE_DRAG_AND_DROP
 103
 104     // Accept files for dragging
 105     virtual void DragAcceptFiles(bool accept);
 106
 107     // Get the unique identifier of a window
 108     virtual WXWidget GetHandle() const { return GetMainWidget(); }
 109
 110     // implementation from now on
 111     // --------------------------
 112
 113     // accessors
 114     // ---------
 115
 116     // Get main widget for this window, e.g. a text widget
 117     virtual WXWidget GetMainWidget() const;
 118     // Get the widget that corresponds to the label (for font setting, label setting etc.)
 119     virtual WXWidget GetLabelWidget() const;
 120     // Get the client widget for this window (something we can create other
 121     // windows on)
 122     virtual WXWidget GetClientWidget() const;
 123     // Get the top widget for this window, e.g. the scrolled widget parent of a
 124     // multi-line text widget. Top means, top in the window hierarchy that
 125     // implements this window.
 126     virtual WXWidget GetTopWidget() const;
 127
 128     // Get the underlying X window and display
 129     WXWindow GetXWindow() const;
 130     WXDisplay *GetXDisplay() const;
 131
 132     // called from Motif callbacks - and should only be called from there
 133
 134     void SetButton1(bool pressed) { m_button1Pressed = pressed; }
 135     void SetButton2(bool pressed) { m_button2Pressed = pressed; }
 136     void SetButton3(bool pressed) { m_button3Pressed = pressed; }
 137
 138     void SetLastClick(int button, long timestamp)
 139         { m_lastButton = button; m_lastTS = timestamp; }
 140
 141     int GetLastClickedButton() const { return m_lastButton; }
 142     long GetLastClickTime() const { return m_lastTS; }
 143
 144     // Gives window a chance to do something in response to a size message, e.g.
 145     // arrange status bar, toolbar etc.
 146     virtual bool PreResize();
 147
 148     // Generates a paint event
 149     virtual void DoPaint();
 150
 151     // update rectangle/region manipulation
 152     // (for wxWindowDC and Motif callbacks only)
 153     // -----------------------------------------
 154
 155     // read/write access to the update rect list
 156     const wxRectList& GetUpdateRects() const { return m_updateRects; }
 157
 158     // Adds a recangle to the updates list
 159     void AddUpdateRect(int x, int y, int w, int h)
 160         { m_updateRects.Append(new wxRect(x, y, w, h)); }
 161
 162     // Empties the m_updateRects list
 163     void ClearUpdateRects();
 164
 165     void ClearUpdateRegion() { m_updateRegion.Clear(); }
 166     void SetUpdateRegion(const wxRegion& region) { m_updateRegion = region; }
 167
 168     // sets the fore/background colour for the given widget
 169     static void DoChangeForegroundColour(WXWidget widget, wxColour& foregroundColour);
 170     static void DoChangeBackgroundColour(WXWidget widget, wxColour& backgroundColour, bool changeArmColour = FALSE);
 171
 172     // For implementation purposes - sometimes decorations make the client area
 173     // smaller
 174     virtual wxPoint GetClientAreaOrigin() const;
 175
 176 protected:
 177     // event handlers (not virtual by design)
 178     void OnIdle(wxIdleEvent& event);
 179
 180     // Makes an adjustment to the window position (for example, a frame that has
 181     // a toolbar that it manages itself).
 182     virtual void AdjustForParentClientOrigin(int& x, int& y, int sizeFlags);
 183
 184     wxWindow *GetChild(int number) const
 185         { return GetChildren().Item(number)->GetData(); }
 186
 187     // Responds to colour changes: passes event on to children.
 188     void OnSysColourChanged(wxSysColourChangedEvent& event);
 189
 190     // Motif-specific
 191
 192         // CanvasXXXSiize functions
 193     void CanvasGetSize(int* width, int* height) const; // If have drawing area
 194     void CanvasGetClientSize(int *width, int *height) const;
 195     void CanvasGetPosition(int *x, int *y) const; // If have drawing area
 196     void CanvasSetClientSize(int width, int size);
 197     void CanvasSetSize(int x, int y, int width, int height, int sizeFlags = wxSIZE_AUTO);
 198
 199     void SetMainWidget(WXWidget w) { m_mainWidget = w; }
 200
 201     bool CanAddEventHandler() const { return m_canAddEventHandler; }
 202     void SetCanAddEventHandler(bool flag) { m_canAddEventHandler = flag; }
 203
 204 public:
 205     WXPixmap GetBackingPixmap() const { return m_backingPixmap; }
 206     void SetBackingPixmap(WXPixmap pixmap) { m_backingPixmap = pixmap; }
 207     int GetPixmapWidth() const { return m_pixmapWidth; }
 208     int GetPixmapHeight() const { return m_pixmapHeight; }
 209     void SetPixmapWidth(int w) { m_pixmapWidth = w; }
 210     void SetPixmapHeight(int h) { m_pixmapHeight = h; }
 211
 212     // Change properties
 213     virtual void ChangeFont(bool keepOriginalSize = TRUE);             // Change to the current font (often overridden)
 214
 215     // Change background and foreground colour using current background colour
 216     // setting (Motif generates foreground based on background)
 217     virtual void ChangeBackgroundColour();
 218     // Change foreground colour using current foreground colour setting
 219     virtual void ChangeForegroundColour();
 220
 221 protected:
 222     // Adds the widget to the hash table and adds event handlers.
 223     bool AttachWidget(wxWindow* parent, WXWidget mainWidget,
 224                       WXWidget formWidget, int x, int y, int width, int height);
 225     bool DetachWidget(WXWidget widget);
 226
 227     // How to implement accelerators. If we find a key event, translate to
 228     // wxWindows wxKeyEvent form. Find a widget for the window. Now find a
 229     // wxWindow for the widget. If there isn't one, go up the widget hierarchy
 230     // trying to find one. Once one is found, call ProcessAccelerator for the
 231     // window. If it returns TRUE (processed the event), skip the X event,
 232     // otherwise carry on up the wxWindows window hierarchy calling
 233     // ProcessAccelerator. If all return FALSE, process the X event as normal.
 234     // Eventually we can implement OnCharHook the same way, but concentrate on
 235     // accelerators for now. ProcessAccelerator must look at the current
 236     // accelerator table, and try to find what menu id or window (beneath it)
 237     // has this ID. Then construct an appropriate command
 238     // event and send it.
 239 public:
 240     virtual bool ProcessAccelerator(wxKeyEvent& event);
 241
 242 protected:
 243     // unmanage and destroy an X widget f it's !NULL (passing NULL is ok)
 244     void UnmanageAndDestroy(WXWidget widget);
 245
 246     // map or unmap an X widget (passing NULL is ok), returns TRUE if widget was
 247     // mapped/unmapped
 248     bool MapOrUnmap(WXWidget widget, bool map);
 249
 250     // scrolling stuff
 251     // ---------------
 252
 253     // create/destroy window scrollbars
 254     void CreateScrollbar(wxOrientation orientation);
 255     void DestroyScrollbar(wxOrientation orientation);
 256
 257     // get either hor or vert scrollbar widget
 258     WXWidget GetScrollbar(wxOrientation orient) const
 259         { return orient == wxHORIZONTAL ? m_hScrollBar : m_vScrollBar; }
 260
 261     // set the scroll pos
 262     void SetInternalScrollPos(wxOrientation orient, int pos)
 263     {
 264         if ( orient == wxHORIZONTAL )
 265             m_scrollPosX = pos;
 266         else
 267             m_scrollPosY = pos;
 268     }
 269
 270     // Motif-specific flags
 271     // --------------------
 272
 273     bool m_needsRefresh:1;          // repaint backing store?
 274     bool m_canAddEventHandler:1;    // ???
 275     bool m_button1Pressed:1;
 276     bool m_button2Pressed:1;
 277     bool m_button3Pressed:1;
 278
 279     // For double-click detection
 280     long   m_lastTS;         // last timestamp
 281     int    m_lastButton;     // last pressed button
 282
 283     // List of wxRects representing damaged region
 284     wxRectList m_updateRects;
 285
 286 protected:
 287     WXWidget              m_mainWidget;
 288     WXWidget              m_hScrollBar;
 289     WXWidget              m_vScrollBar;
 290     WXWidget              m_borderWidget;
 291     WXWidget              m_scrolledWindow;
 292     WXWidget              m_drawingArea;
 293     bool                  m_winCaptured;
 294     bool                  m_hScroll;
 295     bool                  m_vScroll;
 296     WXPixmap              m_backingPixmap;
 297     int                   m_pixmapWidth;
 298     int                   m_pixmapHeight;
 299     int                   m_pixmapOffsetX;
 300     int                   m_pixmapOffsetY;
 301
 302     // Store the last scroll pos, since in wxWin the pos isn't set automatically
 303     // by system
 304     int                   m_scrollPosX;
 305     int                   m_scrollPosY;
 306
 307     // implement the base class pure virtuals
 308     virtual void DoClientToScreen( int *x, int *y ) const;
 309     virtual void DoScreenToClient( int *x, int *y ) const;
 310     virtual void DoGetPosition( int *x, int *y ) const;
 311     virtual void DoGetSize( int *width, int *height ) const;
 312     virtual void DoGetClientSize( int *width, int *height ) const;
 313     virtual void DoSetSize(int x, int y,
 314                            int width, int height,
 315                            int sizeFlags = wxSIZE_AUTO);
 316     virtual void DoSetClientSize(int width, int height);
 317     virtual void DoMoveWindow(int x, int y, int width, int height);
 318     virtual bool DoPopupMenu(wxMenu *menu, int x, int y);
 319
 320 #if wxUSE_TOOLTIPS
 321     virtual void DoSetToolTip( wxToolTip *tip );
 322 #endif // wxUSE_TOOLTIPS
 323
 324 private:
 325     // common part of all ctors
 326     void Init();
 327
 328     DECLARE_DYNAMIC_CLASS(wxWindow)
 329     DECLARE_NO_COPY_CLASS(wxWindow)
 330     DECLARE_EVENT_TABLE()
 331 };
 332
 333 // ----------------------------------------------------------------------------
 334 // A little class to switch off `size optimization' while an instance of the
 335 // object exists: this may be useful to temporarily disable the optimisation
 336 // which consists to do nothing when the new size is equal to the old size -
 337 // although quite useful usually to avoid flicker, sometimes it leads to
 338 // undesired effects.
 339 //
 340 // Usage: create an instance of this class on the stack to disable the size
 341 // optimisation, it will be reenabled as soon as the object goes out from scope.
 342 // ----------------------------------------------------------------------------
 343
 344 class WXDLLEXPORT wxNoOptimize
 345 {
 346 public:
 347   wxNoOptimize() { ms_count++; }
 348   ~wxNoOptimize() { ms_count--; }
 349
 350   static bool CanOptimize() { return ms_count == 0; }
 351
 352 protected:
 353   static int ms_count;
 354 };
 355
 356 #endif
 357     // _WX_WINDOW_H_