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 Clear();
  79     virtual void Freeze();
  80     virtual void Thaw();
  81     virtual bool IsFrozen() const { return m_frozenness > 0; }
  82
  83     virtual bool SetCursor(const wxCursor &cursor);
  84     virtual bool SetFont(const wxFont &font) { m_font = font; return true; }
  85
  86     virtual int GetCharHeight() const;
  87     virtual int GetCharWidth() const;
  88     virtual void GetTextExtent(const wxString& string,
  89                                int *x, int *y,
  90                                int *descent = (int *) NULL,
  91                                int *externalLeading = (int *) NULL,
  92                                const wxFont *theFont = (const wxFont *) NULL)
  93                                const;
  94
  95 #if wxUSE_DRAG_AND_DROP
  96     virtual void SetDropTarget(wxDropTarget *dropTarget);
  97
  98     // Accept files for dragging
  99     virtual void DragAcceptFiles(bool accept);
 100 #endif // wxUSE_DRAG_AND_DROP
 101
 102     virtual WXWidget GetHandle() const { return this; }
 103
 104     // implementation from now on
 105     // --------------------------
 106
 107     // Returns DirectFB surface used for rendering of this window
 108     wxIDirectFBSurfacePtr GetDfbSurface();
 109
 110     // returns toplevel window the window belongs to
 111     wxNonOwnedWindow *GetTLW() const { return m_tlw; }
 112
 113     void OnInternalIdle();
 114
 115     virtual bool IsDoubleBuffered() const { return true; }
 116
 117 protected:
 118     // implement the base class pure virtuals
 119     virtual void DoClientToScreen(int *x, int *y) const;
 120     virtual void DoScreenToClient(int *x, int *y) const;
 121     virtual void DoGetPosition(int *x, int *y) const;
 122     virtual void DoGetSize(int *width, int *height) const;
 123     virtual void DoGetClientSize(int *width, int *height) const;
 124     virtual void DoSetSize(int x, int y,
 125                            int width, int height,
 126                            int sizeFlags = wxSIZE_AUTO);
 127     virtual void DoSetClientSize(int width, int height);
 128
 129     virtual void DoCaptureMouse();
 130     virtual void DoReleaseMouse();
 131
 132     // move the window to the specified location and resize it: this is called
 133     // from both DoSetSize() and DoSetClientSize() and would usually just call
 134     // ::MoveWindow() except for composite controls which will want to arrange
 135     // themselves inside the given rectangle
 136     virtual void DoMoveWindow(int x, int y, int width, int height);
 137
 138     // return DFB surface used to render this window (will be assigned to
 139     // m_surface if the window is visible)
 140     virtual wxIDirectFBSurfacePtr ObtainDfbSurface() const;
 141
 142     // this method must be called when window's position, size or visibility
 143     // changes; it resets m_surface so that ObtainDfbSurface has to be called
 144     // next time GetDfbSurface is called
 145     void InvalidateDfbSurface();
 146
 147     // called by parent to render (part of) the window
 148     void PaintWindow(const wxRect& rect);
 149
 150     // paint window's overlays (if any) on top of window's surface
 151     void PaintOverlays(const wxRect& rect);
 152
 153     // refreshes the entire window (including non-client areas)
 154     void DoRefreshWindow();
 155     // refreshes given rectangle of the window (in window, _not_ client coords)
 156     virtual void DoRefreshRect(const wxRect& rect);
 157     // refreshes given rectangle; unlike RefreshRect(), the argument is in
 158     // window, not client, coords and unlike DoRefreshRect() and like Refresh(),
 159     // does nothing if the window is hidden or frozen
 160     void RefreshWindowRect(const wxRect& rect);
 161
 162     // add/remove overlay for this window
 163     void AddOverlay(wxOverlayImpl *overlay);
 164     void RemoveOverlay(wxOverlayImpl *overlay);
 165
 166     // DirectFB events handling
 167     void HandleKeyEvent(const wxDFBWindowEvent& event_);
 168
 169 private:
 170     // common part of all ctors
 171     void Init();
 172     // counterpart to SetFocus
 173     void DFBKillFocus();
 174
 175 protected:
 176     // toplevel window (i.e. DirectFB window) this window belongs to
 177     wxNonOwnedWindow *m_tlw;
 178
 179 private:
 180     // subsurface of TLW's surface covered by this window
 181     wxIDirectFBSurfacePtr m_surface;
 182
 183     // position of the window (relative to the parent, not used by wxTLW, so
 184     // don't access it directly)
 185     wxRect m_rect;
 186
 187     // number of calls to Freeze() minus number of calls to Thaw()
 188     unsigned m_frozenness;
 189
 190     // overlays for this window (or NULL if it doesn't have any)
 191     wxDfbOverlaysList *m_overlays;
 192
 193     friend class wxNonOwnedWindow; // for HandleXXXEvent
 194     friend class wxOverlayImpl; // for Add/RemoveOverlay
 195     friend class wxWindowDC; // for PaintOverlays
 196
 197     DECLARE_DYNAMIC_CLASS(wxWindowDFB)
 198     DECLARE_NO_COPY_CLASS(wxWindowDFB)
 199     DECLARE_EVENT_TABLE()
 200 };
 201
 202 #endif // _WX_DFB_WINDOW_H_