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