include/wx/motif/window.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/motif/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 #include "wx/region.h"
  16
  17 // ----------------------------------------------------------------------------
  18 // wxWindow class for Motif - see also wxWindowBase
  19 // ----------------------------------------------------------------------------
  20
  21 class WXDLLIMPEXP_CORE wxWindow : public wxWindowBase
  22 {
  23     friend class WXDLLIMPEXP_FWD_CORE wxDC;
  24     friend class WXDLLIMPEXP_FWD_CORE wxWindowDC;
  25
  26 public:
  27     wxWindow() { Init(); }
  28
  29     wxWindow(wxWindow *parent,
  30              wxWindowID id,
  31              const wxPoint& pos = wxDefaultPosition,
  32              const wxSize& size = wxDefaultSize,
  33              long style = 0,
  34              const wxString& name = wxPanelNameStr)
  35     {
  36         Init();
  37         Create(parent, id, pos, size, style, name);
  38     }
  39
  40     virtual ~wxWindow();
  41
  42     bool Create(wxWindow *parent,
  43                 wxWindowID id,
  44                 const wxPoint& pos = wxDefaultPosition,
  45                 const wxSize& size = wxDefaultSize,
  46                 long style = 0,
  47                 const wxString& name = wxPanelNameStr);
  48
  49     // implement base class pure virtuals
  50     virtual void SetLabel(const wxString& label);
  51     virtual wxString GetLabel() const;
  52
  53     virtual void Raise();
  54     virtual void Lower();
  55
  56     virtual bool Show( bool show = true );
  57     virtual bool Enable( bool enable = true );
  58
  59     virtual void SetFocus();
  60
  61     virtual void WarpPointer(int x, int y);
  62
  63     virtual void Refresh( bool eraseBackground = true,
  64         const wxRect *rect = (const wxRect *) NULL );
  65
  66     virtual bool SetBackgroundColour( const wxColour &colour );
  67     virtual bool SetForegroundColour( const wxColour &colour );
  68
  69     virtual bool SetCursor( const wxCursor &cursor );
  70     virtual bool SetFont( const wxFont &font );
  71
  72     virtual int GetCharHeight() const;
  73     virtual int GetCharWidth() const;
  74
  75     virtual void SetScrollbar( int orient, int pos, int thumbVisible,
  76         int range, bool refresh = true );
  77     virtual void SetScrollPos( int orient, int pos, bool refresh = true );
  78     virtual int GetScrollPos( int orient ) const;
  79     virtual int GetScrollThumb( int orient ) const;
  80     virtual int GetScrollRange( int orient ) const;
  81     virtual void ScrollWindow( int dx, int dy,
  82         const wxRect* rect = NULL );
  83
  84 #if wxUSE_DRAG_AND_DROP
  85     virtual void SetDropTarget( wxDropTarget *dropTarget );
  86 #endif // wxUSE_DRAG_AND_DROP
  87
  88     // Accept files for dragging
  89     virtual void DragAcceptFiles(bool accept);
  90
  91     // Get the unique identifier of a window
  92     virtual WXWidget GetHandle() const { return GetMainWidget(); }
  93
  94     // implementation from now on
  95     // --------------------------
  96
  97     // accessors
  98     // ---------
  99
 100     // Get main widget for this window, e.g. a text widget
 101     virtual WXWidget GetMainWidget() const;
 102     // Get the widget that corresponds to the label (for font setting,
 103     // label setting etc.)
 104     virtual WXWidget GetLabelWidget() const;
 105     // Get the client widget for this window (something we can create other
 106     // windows on)
 107     virtual WXWidget GetClientWidget() const;
 108     // Get the top widget for this window, e.g. the scrolled widget parent of a
 109     // multi-line text widget. Top means, top in the window hierarchy that
 110     // implements this window.
 111     virtual WXWidget GetTopWidget() const;
 112
 113     // Get the underlying X window and display
 114     WXWindow GetClientXWindow() const;
 115     WXWindow GetXWindow() const;
 116     WXDisplay *GetXDisplay() const;
 117
 118     void SetLastClick(int button, long timestamp)
 119     { m_lastButton = button; m_lastTS = timestamp; }
 120
 121     int GetLastClickedButton() const { return m_lastButton; }
 122     long GetLastClickTime() const { return m_lastTS; }
 123
 124     // Gives window a chance to do something in response to a size message,
 125     // e.g. arrange status bar, toolbar etc.
 126     virtual bool PreResize();
 127
 128     // Generates a paint event
 129     virtual void DoPaint();
 130
 131     // update rectangle/region manipulation
 132     // (for wxWindowDC and Motif callbacks only)
 133     // -----------------------------------------
 134
 135     // Adds a recangle to the updates list
 136     void AddUpdateRect(int x, int y, int w, int h);
 137
 138     void ClearUpdateRegion() { m_updateRegion.Clear(); }
 139     void SetUpdateRegion(const wxRegion& region) { m_updateRegion = region; }
 140
 141     // post-creation activities
 142     void PostCreation();
 143
 144     // pre-creation activities
 145     void PreCreation();
 146
 147 protected:
 148     // Responds to colour changes: passes event on to children.
 149     void OnSysColourChanged(wxSysColourChangedEvent& event);
 150
 151     // Motif-specific
 152
 153     void SetMainWidget(WXWidget w) { m_mainWidget = w; }
 154
 155     // See src/motif/window.cpp, near the top, for an explanation
 156     // why this is necessary
 157     void CanvasSetSizeIntr(int x, int y, int width, int height,
 158                            int sizeFlags, bool fromCtor);
 159     void DoSetSizeIntr(int x, int y,
 160                        int width, int height,
 161                        int sizeFlags, bool fromCtor);
 162
 163     // for DoMoveWindowIntr flags
 164     enum
 165     {
 166         wxMOVE_X = 1,
 167         wxMOVE_Y = 2,
 168         wxMOVE_WIDTH = 4,
 169         wxMOVE_HEIGHT = 8
 170     };
 171
 172     void DoMoveWindowIntr(int x, int y, int width, int height,
 173                           int flags);
 174
 175     // helper function, to remove duplicate code, used in wxScrollBar
 176     WXWidget DoCreateScrollBar(WXWidget parent, wxOrientation orientation,
 177                                void (*callback)());
 178 public:
 179     WXPixmap GetBackingPixmap() const { return m_backingPixmap; }
 180     void SetBackingPixmap(WXPixmap pixmap) { m_backingPixmap = pixmap; }
 181     int GetPixmapWidth() const { return m_pixmapWidth; }
 182     int GetPixmapHeight() const { return m_pixmapHeight; }
 183     void SetPixmapWidth(int w) { m_pixmapWidth = w; }
 184     void SetPixmapHeight(int h) { m_pixmapHeight = h; }
 185
 186     // Change properties
 187     // Change to the current font (often overridden)
 188     virtual void ChangeFont(bool keepOriginalSize = true);
 189
 190     // Change background and foreground colour using current background colour
 191     // setting (Motif generates foreground based on background)
 192     virtual void ChangeBackgroundColour();
 193     // Change foreground colour using current foreground colour setting
 194     virtual void ChangeForegroundColour();
 195
 196 protected:
 197     // Adds the widget to the hash table and adds event handlers.
 198     bool AttachWidget(wxWindow* parent, WXWidget mainWidget,
 199         WXWidget formWidget, int x, int y, int width, int height);
 200     bool DetachWidget(WXWidget widget);
 201
 202     // How to implement accelerators. If we find a key event, translate to
 203     // wxWidgets wxKeyEvent form. Find a widget for the window. Now find a
 204     // wxWindow for the widget. If there isn't one, go up the widget hierarchy
 205     // trying to find one. Once one is found, call ProcessAccelerator for the
 206     // window. If it returns true (processed the event), skip the X event,
 207     // otherwise carry on up the wxWidgets window hierarchy calling
 208     // ProcessAccelerator. If all return false, process the X event as normal.
 209     // Eventually we can implement OnCharHook the same way, but concentrate on
 210     // accelerators for now. ProcessAccelerator must look at the current
 211     // accelerator table, and try to find what menu id or window (beneath it)
 212     // has this ID. Then construct an appropriate command
 213     // event and send it.
 214 public:
 215     virtual bool ProcessAccelerator(wxKeyEvent& event);
 216
 217 protected:
 218     // unmanage and destroy an X widget f it's !NULL (passing NULL is ok)
 219     void UnmanageAndDestroy(WXWidget widget);
 220
 221     // map or unmap an X widget (passing NULL is ok),
 222     // returns true if widget was mapped/unmapped
 223     bool MapOrUnmap(WXWidget widget, bool map);
 224
 225     // scrolling stuff
 226     // ---------------
 227
 228     // create/destroy window scrollbars
 229     void CreateScrollbar(wxOrientation orientation);
 230     void DestroyScrollbar(wxOrientation orientation);
 231
 232     // get either hor or vert scrollbar widget
 233     WXWidget GetScrollbar(wxOrientation orient) const
 234     { return orient == wxHORIZONTAL ? m_hScrollBar : m_vScrollBar; }
 235
 236     // set the scroll pos
 237     void SetInternalScrollPos(wxOrientation orient, int pos)
 238     {
 239         if ( orient == wxHORIZONTAL )
 240             m_scrollPosX = pos;
 241         else
 242             m_scrollPosY = pos;
 243     }
 244
 245     // Motif-specific flags
 246     // --------------------
 247
 248     bool m_needsRefresh:1;          // repaint backing store?
 249
 250     // For double-click detection
 251     long                  m_lastTS;           // last timestamp
 252     unsigned              m_lastButton:2;     // last pressed button
 253
 254 protected:
 255     WXWidget              m_mainWidget;
 256     WXWidget              m_hScrollBar;
 257     WXWidget              m_vScrollBar;
 258     WXWidget              m_borderWidget;
 259     WXWidget              m_scrolledWindow;
 260     WXWidget              m_drawingArea;
 261     bool                  m_winCaptured:1;
 262     WXPixmap              m_backingPixmap;
 263     int                   m_pixmapWidth;
 264     int                   m_pixmapHeight;
 265     int                   m_pixmapOffsetX;
 266     int                   m_pixmapOffsetY;
 267
 268     // Store the last scroll pos, since in wxWin the pos isn't set
 269     // automatically by system
 270     int                   m_scrollPosX;
 271     int                   m_scrollPosY;
 272
 273     // implement the base class pure virtuals
 274     virtual void DoGetTextExtent(const wxString& string,
 275                                  int *x, int *y,
 276                                  int *descent = NULL,
 277                                  int *externalLeading = NULL,
 278                                  const wxFont *font = NULL) const;
 279     virtual void DoClientToScreen( int *x, int *y ) const;
 280     virtual void DoScreenToClient( int *x, int *y ) const;
 281     virtual void DoGetPosition( int *x, int *y ) const;
 282     virtual void DoGetSize( int *width, int *height ) const;
 283     virtual void DoGetClientSize( int *width, int *height ) const;
 284     virtual void DoSetSize(int x, int y,
 285         int width, int height,
 286         int sizeFlags = wxSIZE_AUTO);
 287     virtual void DoSetClientSize(int width, int height);
 288     virtual void DoMoveWindow(int x, int y, int width, int height);
 289     virtual bool DoPopupMenu(wxMenu *menu, int x, int y);
 290     virtual void DoCaptureMouse();
 291     virtual void DoReleaseMouse();
 292
 293 #if wxUSE_TOOLTIPS
 294     virtual void DoSetToolTip( wxToolTip *tip );
 295 #endif // wxUSE_TOOLTIPS
 296
 297 private:
 298     // common part of all ctors
 299     void Init();
 300
 301     DECLARE_DYNAMIC_CLASS(wxWindow)
 302     wxDECLARE_NO_COPY_CLASS(wxWindow);
 303     DECLARE_EVENT_TABLE()
 304 };
 305
 306 // ----------------------------------------------------------------------------
 307 // A little class to switch off `size optimization' while an instance of the
 308 // object exists: this may be useful to temporarily disable the optimisation
 309 // which consists to do nothing when the new size is equal to the old size -
 310 // although quite useful usually to avoid flicker, sometimes it leads to
 311 // undesired effects.
 312 //
 313 // Usage: create an instance of this class on the stack to disable the size
 314 // optimisation, it will be reenabled as soon as the object goes out
 315 // from scope.
 316 // ----------------------------------------------------------------------------
 317
 318 class WXDLLIMPEXP_CORE wxNoOptimize
 319 {
 320 public:
 321     wxNoOptimize() { ms_count++; }
 322     ~wxNoOptimize() { ms_count--; }
 323
 324     static bool CanOptimize() { return ms_count == 0; }
 325
 326 protected:
 327     static int ms_count;
 328 };
 329
 330 #endif // _WX_WINDOW_H_