include/wx/dfb/window.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/dfb/window.h
   3 // Purpose:     wxWindow class
   4 // Author:      Vaclav Slavik
   5 // Created:     2006-08-10
   6 // RCS-ID:      $Id$
   7 // Copyright:   (c) 2006 REA Elektronik GmbH
   8 // Licence:     wxWindows licence
   9 /////////////////////////////////////////////////////////////////////////////
  10
  11 #ifndef _WX_DFB_WINDOW_H_
  12 #define _WX_DFB_WINDOW_H_
  13
  14 // ---------------------------------------------------------------------------
  15 // headers
  16 // ---------------------------------------------------------------------------
  17
  18 #include "wx/dfb/dfbptr.h"
  19
  20 wxDFB_DECLARE_INTERFACE(IDirectFBSurface);
  21 struct wxDFBWindowEvent;
  22
  23 class WXDLLIMPEXP_FWD_CORE wxFont;
  24 class WXDLLIMPEXP_FWD_CORE wxNonOwnedWindow;
  25
  26 class wxOverlayImpl;
  27 class wxDfbOverlaysList;
  28
  29 // ---------------------------------------------------------------------------
  30 // wxWindow
  31 // ---------------------------------------------------------------------------
  32
  33 class WXDLLIMPEXP_CORE wxWindowDFB : public wxWindowBase
  34 {
  35 public:
  36     wxWindowDFB() { Init(); }
  37
  38     wxWindowDFB(wxWindow *parent,
  39                 wxWindowID id,
  40                 const wxPoint& pos = wxDefaultPosition,
  41                 const wxSize& size = wxDefaultSize,
  42                 long style = 0,
  43                 const wxString& name = wxPanelNameStr)
  44     {
  45         Init();
  46         Create(parent, id, pos, size, style, name);
  47     }
  48
  49     virtual ~wxWindowDFB();
  50
  51     bool Create(wxWindow *parent,
  52                 wxWindowID id,
  53                 const wxPoint& pos = wxDefaultPosition,
  54                 const wxSize& size = wxDefaultSize,
  55                 long style = 0,
  56                 const wxString& name = wxPanelNameStr);
  57
  58     // implement base class (pure) virtual methods
  59     // -------------------------------------------
  60
  61     virtual void SetLabel( const wxString &WXUNUSED(label) ) {}
  62     virtual wxString GetLabel() const { return wxEmptyString; }
  63
  64     virtual void Raise();
  65     virtual void Lower();
  66
  67     virtual bool Show(bool show = true);
  68
  69     virtual void SetFocus();
  70
  71     virtual bool Reparent(wxWindowBase *newParent);
  72
  73     virtual void WarpPointer(int x, int y);
  74
  75     virtual void Refresh(bool eraseBackground = true,
  76                          const wxRect *rect = (const wxRect *) NULL);
  77     virtual void Update();
  78     virtual void Freeze();
  79     virtual void Thaw();
  80     virtual bool IsFrozen() const { return m_frozenness > 0; }
  81
  82     virtual bool SetCursor(const wxCursor &cursor);
  83     virtual bool SetFont(const wxFont &font) { m_font = font; return true; }
  84
  85     virtual int GetCharHeight() const;
  86     virtual int GetCharWidth() const;
  87     virtual void GetTextExtent(const wxString& string,
  88                                int *x, int *y,
  89                                int *descent = (int *) NULL,
  90                                int *externalLeading = (int *) NULL,
  91                                const wxFont *theFont = (const wxFont *) NULL)
  92                                const;
  93
  94 #if wxUSE_DRAG_AND_DROP
  95     virtual void SetDropTarget(wxDropTarget *dropTarget);
  96
  97     // Accept files for dragging
  98     virtual void DragAcceptFiles(bool accept);
  99 #endif // wxUSE_DRAG_AND_DROP
 100
 101     virtual WXWidget GetHandle() const { return this; }
 102
 103     // implementation from now on
 104     // --------------------------
 105
 106     // Returns DirectFB surface used for rendering of this window
 107     wxIDirectFBSurfacePtr GetDfbSurface();
 108
 109     // returns toplevel window the window belongs to
 110     wxNonOwnedWindow *GetTLW() const { return m_tlw; }
 111
 112     void OnInternalIdle();
 113
 114     virtual bool IsDoubleBuffered() const { return true; }
 115
 116 protected:
 117     // implement the base class pure virtuals
 118     virtual void DoClientToScreen(int *x, int *y) const;
 119     virtual void DoScreenToClient(int *x, int *y) const;
 120     virtual void DoGetPosition(int *x, int *y) const;
 121     virtual void DoGetSize(int *width, int *height) const;
 122     virtual void DoGetClientSize(int *width, int *height) const;
 123     virtual void DoSetSize(int x, int y,
 124                            int width, int height,
 125                            int sizeFlags = wxSIZE_AUTO);
 126     virtual void DoSetClientSize(int width, int height);
 127
 128     virtual void DoCaptureMouse();
 129     virtual void DoReleaseMouse();
 130
 131     // move the window to the specified location and resize it: this is called
 132     // from both DoSetSize() and DoSetClientSize() and would usually just call
 133     // ::MoveWindow() except for composite controls which will want to arrange
 134     // themselves inside the given rectangle
 135     virtual void DoMoveWindow(int x, int y, int width, int height);
 136
 137     // return DFB surface used to render this window (will be assigned to
 138     // m_surface if the window is visible)
 139     virtual wxIDirectFBSurfacePtr ObtainDfbSurface() const;
 140
 141     // this method must be called when window's position, size or visibility
 142     // changes; it resets m_surface so that ObtainDfbSurface has to be called
 143     // next time GetDfbSurface is called
 144     void InvalidateDfbSurface();
 145
 146     // called by parent to render (part of) the window
 147     void PaintWindow(const wxRect& rect);
 148
 149     // paint window's overlays (if any) on top of window's surface
 150     void PaintOverlays(const wxRect& rect);
 151
 152     // refreshes the entire window (including non-client areas)
 153     void DoRefreshWindow();
 154     // refreshes given rectangle of the window (in window, _not_ client coords)
 155     virtual void DoRefreshRect(const wxRect& rect);
 156     // refreshes given rectangle; unlike RefreshRect(), the argument is in
 157     // window, not client, coords and unlike DoRefreshRect() and like Refresh(),
 158     // does nothing if the window is hidden or frozen
 159     void RefreshWindowRect(const wxRect& rect);
 160
 161     // add/remove overlay for this window
 162     void AddOverlay(wxOverlayImpl *overlay);
 163     void RemoveOverlay(wxOverlayImpl *overlay);
 164
 165     // DirectFB events handling
 166     void HandleKeyEvent(const wxDFBWindowEvent& event_);
 167
 168 private:
 169     // common part of all ctors
 170     void Init();
 171     // counterpart to SetFocus
 172     void DFBKillFocus();
 173
 174 protected:
 175     // toplevel window (i.e. DirectFB window) this window belongs to
 176     wxNonOwnedWindow *m_tlw;
 177
 178 private:
 179     // subsurface of TLW's surface covered by this window
 180     wxIDirectFBSurfacePtr m_surface;
 181
 182     // position of the window (relative to the parent, not used by wxTLW, so
 183     // don't access it directly)
 184     wxRect m_rect;
 185
 186     // number of calls to Freeze() minus number of calls to Thaw()
 187     unsigned m_frozenness;
 188
 189     // overlays for this window (or NULL if it doesn't have any)
 190     wxDfbOverlaysList *m_overlays;
 191
 192     friend class wxNonOwnedWindow; // for HandleXXXEvent
 193     friend class wxOverlayImpl; // for Add/RemoveOverlay
 194     friend class wxWindowDC; // for PaintOverlays
 195
 196     DECLARE_DYNAMIC_CLASS(wxWindowDFB)
 197     DECLARE_NO_COPY_CLASS(wxWindowDFB)
 198     DECLARE_EVENT_TABLE()
 199 };
 200
 201 #endif // _WX_DFB_WINDOW_H_