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 #if defined(__GNUG__) && !defined(__APPLE__)
  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
  67     virtual void Refresh( bool eraseBackground = TRUE,
  68         const wxRect *rect = (const wxRect *) NULL );
  69     virtual void Clear();
  70
  71     virtual bool SetBackgroundColour( const wxColour &colour );
  72     virtual bool SetForegroundColour( const wxColour &colour );
  73
  74     virtual bool SetCursor( const wxCursor &cursor );
  75     virtual bool SetFont( const wxFont &font );
  76
  77     virtual int GetCharHeight() const;
  78     virtual int GetCharWidth() const;
  79     virtual void GetTextExtent(const wxString& string,
  80         int *x, int *y,
  81         int *descent = (int *) NULL,
  82         int *externalLeading = (int *) NULL,
  83         const wxFont *theFont = (const wxFont *) NULL)
  84         const;
  85
  86     virtual void SetScrollbar( int orient, int pos, int thumbVisible,
  87         int range, bool refresh = TRUE );
  88     virtual void SetScrollPos( int orient, int pos, bool refresh = TRUE );
  89     virtual int GetScrollPos( int orient ) const;
  90     virtual int GetScrollThumb( int orient ) const;
  91     virtual int GetScrollRange( int orient ) const;
  92     virtual void ScrollWindow( int dx, int dy,
  93         const wxRect* rect = (wxRect *) NULL );
  94
  95 #if wxUSE_DRAG_AND_DROP
  96     virtual void SetDropTarget( wxDropTarget *dropTarget );
  97 #endif // wxUSE_DRAG_AND_DROP
  98
  99     // Accept files for dragging
 100     virtual void DragAcceptFiles(bool accept);
 101
 102     // Get the unique identifier of a window
 103     virtual WXWidget GetHandle() const { return GetMainWidget(); }
 104
 105     // implementation from now on
 106     // --------------------------
 107
 108     // accessors
 109     // ---------
 110
 111     // Get main widget for this window, e.g. a text widget
 112     virtual WXWidget GetMainWidget() const;
 113     // Get the widget that corresponds to the label (for font setting,
 114     // label setting etc.)
 115     virtual WXWidget GetLabelWidget() const;
 116     // Get the client widget for this window (something we can create other
 117     // windows on)
 118     virtual WXWidget GetClientWidget() const;
 119     // Get the top widget for this window, e.g. the scrolled widget parent of a
 120     // multi-line text widget. Top means, top in the window hierarchy that
 121     // implements this window.
 122     virtual WXWidget GetTopWidget() const;
 123
 124     // Get the underlying X window and display
 125     WXWindow GetXWindow() const;
 126     WXDisplay *GetXDisplay() const;
 127
 128     void SetLastClick(int button, long timestamp)
 129     { m_lastButton = button; m_lastTS = timestamp; }
 130
 131     int GetLastClickedButton() const { return m_lastButton; }
 132     long GetLastClickTime() const { return m_lastTS; }
 133
 134     // Gives window a chance to do something in response to a size message,
 135     // e.g. arrange status bar, toolbar etc.
 136     virtual bool PreResize();
 137
 138     // Generates a paint event
 139     virtual void DoPaint();
 140
 141     // update rectangle/region manipulation
 142     // (for wxWindowDC and Motif callbacks only)
 143     // -----------------------------------------
 144
 145     // Adds a recangle to the updates list
 146     void AddUpdateRect(int x, int y, int w, int h);
 147
 148     void ClearUpdateRegion() { m_updateRegion.Clear(); }
 149     void SetUpdateRegion(const wxRegion& region) { m_updateRegion = region; }
 150
 151     // For implementation purposes - sometimes decorations make the client area
 152     // smaller
 153     virtual wxPoint GetClientAreaOrigin() const;
 154
 155 protected:
 156     // event handlers (not virtual by design)
 157     void OnIdle(wxIdleEvent& event);
 158
 159     // Responds to colour changes: passes event on to children.
 160     void OnSysColourChanged(wxSysColourChangedEvent& event);
 161
 162     // Motif-specific
 163
 164     void SetMainWidget(WXWidget w) { m_mainWidget = w; }
 165
 166     // See src/motif/window.cpp, near the top, for an explanation
 167     // why this is necessary
 168     void CanvasSetSizeIntr(int x, int y, int width, int height,
 169                            int sizeFlags, bool fromCtor);
 170     void DoSetSizeIntr(int x, int y,
 171                        int width, int height,
 172                        int sizeFlags, bool fromCtor);
 173
 174     // for DoMoveWindowIntr flags
 175     enum
 176     {
 177         wxMOVE_X = 1,
 178         wxMOVE_Y = 2,
 179         wxMOVE_WIDTH = 4,
 180         wxMOVE_HEIGHT = 8
 181     };
 182
 183     void DoMoveWindowIntr(int x, int y, int width, int height,
 184                           int flags);
 185
 186     // helper function, to remove duplicate code, used in wxScrollBar
 187     WXWidget DoCreateScrollBar(WXWidget parent, wxOrientation orientation,
 188                                void (*callback)());
 189 public:
 190     WXPixmap GetBackingPixmap() const { return m_backingPixmap; }
 191     void SetBackingPixmap(WXPixmap pixmap) { m_backingPixmap = pixmap; }
 192     int GetPixmapWidth() const { return m_pixmapWidth; }
 193     int GetPixmapHeight() const { return m_pixmapHeight; }
 194     void SetPixmapWidth(int w) { m_pixmapWidth = w; }
 195     void SetPixmapHeight(int h) { m_pixmapHeight = h; }
 196
 197     // Change properties
 198     // Change to the current font (often overridden)
 199     virtual void ChangeFont(bool keepOriginalSize = TRUE);
 200
 201     // Change background and foreground colour using current background colour
 202     // setting (Motif generates foreground based on background)
 203     virtual void ChangeBackgroundColour();
 204     // Change foreground colour using current foreground colour setting
 205     virtual void ChangeForegroundColour();
 206
 207 protected:
 208     // Adds the widget to the hash table and adds event handlers.
 209     bool AttachWidget(wxWindow* parent, WXWidget mainWidget,
 210         WXWidget formWidget, int x, int y, int width, int height);
 211     bool DetachWidget(WXWidget widget);
 212
 213     // How to implement accelerators. If we find a key event, translate to
 214     // wxWindows wxKeyEvent form. Find a widget for the window. Now find a
 215     // wxWindow for the widget. If there isn't one, go up the widget hierarchy
 216     // trying to find one. Once one is found, call ProcessAccelerator for the
 217     // window. If it returns TRUE (processed the event), skip the X event,
 218     // otherwise carry on up the wxWindows window hierarchy calling
 219     // ProcessAccelerator. If all return FALSE, process the X event as normal.
 220     // Eventually we can implement OnCharHook the same way, but concentrate on
 221     // accelerators for now. ProcessAccelerator must look at the current
 222     // accelerator table, and try to find what menu id or window (beneath it)
 223     // has this ID. Then construct an appropriate command
 224     // event and send it.
 225 public:
 226     virtual bool ProcessAccelerator(wxKeyEvent& event);
 227
 228 protected:
 229     // unmanage and destroy an X widget f it's !NULL (passing NULL is ok)
 230     void UnmanageAndDestroy(WXWidget widget);
 231
 232     // map or unmap an X widget (passing NULL is ok),
 233     // returns TRUE if widget was mapped/unmapped
 234     bool MapOrUnmap(WXWidget widget, bool map);
 235
 236     // scrolling stuff
 237     // ---------------
 238
 239     // create/destroy window scrollbars
 240     void CreateScrollbar(wxOrientation orientation);
 241     void DestroyScrollbar(wxOrientation orientation);
 242
 243     // get either hor or vert scrollbar widget
 244     WXWidget GetScrollbar(wxOrientation orient) const
 245     { return orient == wxHORIZONTAL ? m_hScrollBar : m_vScrollBar; }
 246
 247     // set the scroll pos
 248     void SetInternalScrollPos(wxOrientation orient, int pos)
 249     {
 250         if ( orient == wxHORIZONTAL )
 251             m_scrollPosX = pos;
 252         else
 253             m_scrollPosY = pos;
 254     }
 255
 256     // Motif-specific flags
 257     // --------------------
 258
 259     bool m_needsRefresh:1;          // repaint backing store?
 260
 261     // For double-click detection
 262     long                  m_lastTS;           // last timestamp
 263     unsigned              m_lastButton:2;     // last pressed button
 264
 265 protected:
 266     WXWidget              m_mainWidget;
 267     WXWidget              m_hScrollBar;
 268     WXWidget              m_vScrollBar;
 269     WXWidget              m_borderWidget;
 270     WXWidget              m_scrolledWindow;
 271     WXWidget              m_drawingArea;
 272     bool                  m_winCaptured:1;
 273     WXPixmap              m_backingPixmap;
 274     int                   m_pixmapWidth;
 275     int                   m_pixmapHeight;
 276     int                   m_pixmapOffsetX;
 277     int                   m_pixmapOffsetY;
 278
 279     // Store the last scroll pos, since in wxWin the pos isn't set
 280     // automatically by system
 281     int                   m_scrollPosX;
 282     int                   m_scrollPosY;
 283
 284     // implement the base class pure virtuals
 285     virtual void DoClientToScreen( int *x, int *y ) const;
 286     virtual void DoScreenToClient( int *x, int *y ) const;
 287     virtual void DoGetPosition( int *x, int *y ) const;
 288     virtual void DoGetSize( int *width, int *height ) const;
 289     virtual void DoGetClientSize( int *width, int *height ) const;
 290     virtual void DoSetSize(int x, int y,
 291         int width, int height,
 292         int sizeFlags = wxSIZE_AUTO);
 293     virtual void DoSetClientSize(int width, int height);
 294     virtual void DoMoveWindow(int x, int y, int width, int height);
 295     virtual bool DoPopupMenu(wxMenu *menu, int x, int y);
 296     virtual void DoCaptureMouse();
 297     virtual void DoReleaseMouse();
 298
 299 #if wxUSE_TOOLTIPS
 300     virtual void DoSetToolTip( wxToolTip *tip );
 301 #endif // wxUSE_TOOLTIPS
 302
 303 private:
 304     // common part of all ctors
 305     void Init();
 306
 307     DECLARE_DYNAMIC_CLASS(wxWindow)
 308     DECLARE_NO_COPY_CLASS(wxWindow)
 309     DECLARE_EVENT_TABLE()
 310 };
 311
 312 // ----------------------------------------------------------------------------
 313 // A little class to switch off `size optimization' while an instance of the
 314 // object exists: this may be useful to temporarily disable the optimisation
 315 // which consists to do nothing when the new size is equal to the old size -
 316 // although quite useful usually to avoid flicker, sometimes it leads to
 317 // undesired effects.
 318 //
 319 // Usage: create an instance of this class on the stack to disable the size
 320 // optimisation, it will be reenabled as soon as the object goes out
 321 // from scope.
 322 // ----------------------------------------------------------------------------
 323
 324 class WXDLLEXPORT wxNoOptimize
 325 {
 326 public:
 327     wxNoOptimize() { ms_count++; }
 328     ~wxNoOptimize() { ms_count--; }
 329
 330     static bool CanOptimize() { return ms_count == 0; }
 331
 332 protected:
 333     static int ms_count;
 334 };
 335
 336 #endif
 337 // _WX_WINDOW_H_