include/wx/dfb/dc.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/dfb/dc.h
   3 // Purpose:     wxDC class
   4 // Author:      Vaclav Slavik
   5 // Created:     2006-08-07
   6 // Copyright:   (c) 2006 REA Elektronik GmbH
   7 // Licence:     wxWindows licence
   8 /////////////////////////////////////////////////////////////////////////////
   9
  10 #ifndef _WX_DFB_DC_H_
  11 #define _WX_DFB_DC_H_
  12
  13 #include "wx/defs.h"
  14 #include "wx/region.h"
  15 #include "wx/dc.h"
  16 #include "wx/dfb/dfbptr.h"
  17
  18 wxDFB_DECLARE_INTERFACE(IDirectFBSurface);
  19
  20 //-----------------------------------------------------------------------------
  21 // wxDFBDCImpl
  22 //-----------------------------------------------------------------------------
  23
  24 class WXDLLIMPEXP_CORE wxDFBDCImpl : public wxDCImpl
  25 {
  26 public:
  27     // ctors
  28     wxDFBDCImpl(wxDC *owner) : wxDCImpl(owner) { m_surface = NULL; }
  29     wxDFBDCImpl(wxDC *owner, const wxIDirectFBSurfacePtr& surface)
  30         : wxDCImpl(owner)
  31     {
  32         DFBInit(surface);
  33     }
  34
  35     bool IsOk() const { return m_surface != NULL; }
  36
  37     // implement base class pure virtuals
  38     // ----------------------------------
  39
  40     virtual void Clear();
  41
  42     virtual bool StartDoc(const wxString& message);
  43     virtual void EndDoc();
  44
  45     virtual void StartPage();
  46     virtual void EndPage();
  47
  48     virtual void SetFont(const wxFont& font);
  49     virtual void SetPen(const wxPen& pen);
  50     virtual void SetBrush(const wxBrush& brush);
  51     virtual void SetBackground(const wxBrush& brush);
  52     virtual void SetBackgroundMode(int mode);
  53 #if wxUSE_PALETTE
  54     virtual void SetPalette(const wxPalette& palette);
  55 #endif
  56
  57     virtual void SetLogicalFunction(wxRasterOperationMode function);
  58
  59     virtual void DestroyClippingRegion();
  60
  61     virtual wxCoord GetCharHeight() const;
  62     virtual wxCoord GetCharWidth() const;
  63     virtual void DoGetTextExtent(const wxString& string,
  64                                  wxCoord *x, wxCoord *y,
  65                                  wxCoord *descent = NULL,
  66                                  wxCoord *externalLeading = NULL,
  67                                  const wxFont *theFont = NULL) const;
  68
  69     virtual bool CanDrawBitmap() const { return true; }
  70     virtual bool CanGetTextExtent() const { return true; }
  71     virtual int GetDepth() const;
  72     virtual wxSize GetPPI() const;
  73
  74     // Returns the surface (and increases its ref count)
  75     wxIDirectFBSurfacePtr GetDirectFBSurface() const { return m_surface; }
  76
  77 protected:
  78     // implementation
  79     wxCoord XDEV2LOG(wxCoord x) const       { return DeviceToLogicalX(x); }
  80     wxCoord XDEV2LOGREL(wxCoord x) const    { return DeviceToLogicalXRel(x); }
  81     wxCoord YDEV2LOG(wxCoord y) const       { return DeviceToLogicalY(y); }
  82     wxCoord YDEV2LOGREL(wxCoord y) const    { return DeviceToLogicalYRel(y); }
  83     wxCoord XLOG2DEV(wxCoord x) const       { return LogicalToDeviceX(x); }
  84     wxCoord XLOG2DEVREL(wxCoord x) const    { return LogicalToDeviceXRel(x); }
  85     wxCoord YLOG2DEV(wxCoord y) const       { return LogicalToDeviceY(y); }
  86     wxCoord YLOG2DEVREL(wxCoord y) const    { return LogicalToDeviceYRel(y); }
  87
  88     // initializes the DC from a surface, must be called if default ctor
  89     // was used
  90     void DFBInit(const wxIDirectFBSurfacePtr& surface);
  91
  92     virtual bool DoFloodFill(wxCoord x, wxCoord y, const wxColour& col,
  93                              wxFloodFillStyle style = wxFLOOD_SURFACE);
  94
  95     virtual bool DoGetPixel(wxCoord x, wxCoord y, wxColour *col) const;
  96
  97     virtual void DoDrawPoint(wxCoord x, wxCoord y);
  98     virtual void DoDrawLine(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2);
  99
 100     virtual void DoDrawArc(wxCoord x1, wxCoord y1,
 101                            wxCoord x2, wxCoord y2,
 102                            wxCoord xc, wxCoord yc);
 103     virtual void DoDrawEllipticArc(wxCoord x, wxCoord y, wxCoord w, wxCoord h,
 104                                    double sa, double ea);
 105
 106     virtual void DoDrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height);
 107     virtual void DoDrawRoundedRectangle(wxCoord x, wxCoord y,
 108                                         wxCoord width, wxCoord height,
 109                                         double radius);
 110     virtual void DoDrawEllipse(wxCoord x, wxCoord y, wxCoord width, wxCoord height);
 111
 112     virtual void DoCrossHair(wxCoord x, wxCoord y);
 113
 114     virtual void DoDrawIcon(const wxIcon& icon, wxCoord x, wxCoord y);
 115     virtual void DoDrawBitmap(const wxBitmap &bmp, wxCoord x, wxCoord y,
 116                               bool useMask = false);
 117
 118     virtual void DoDrawText(const wxString& text, wxCoord x, wxCoord y);
 119     virtual void DoDrawRotatedText(const wxString& text, wxCoord x, wxCoord y,
 120                                    double angle);
 121
 122     virtual bool DoBlit(wxCoord xdest, wxCoord ydest, wxCoord width, wxCoord height,
 123                         wxDC *source, wxCoord xsrc, wxCoord ysrc,
 124                         wxRasterOperationMode rop = wxCOPY, bool useMask = false,
 125                         wxCoord xsrcMask = -1, wxCoord ysrcMask = -1);
 126
 127     virtual void DoSetClippingRegion(wxCoord x, wxCoord y,
 128                                      wxCoord width, wxCoord height);
 129     virtual void DoSetDeviceClippingRegion(const wxRegion& region);
 130
 131     virtual void DoGetSize(int *width, int *height) const;
 132     virtual void DoGetSizeMM(int* width, int* height) const;
 133
 134     virtual void DoDrawLines(int n, const wxPoint points[],
 135                              wxCoord xoffset, wxCoord yoffset);
 136     virtual void DoDrawPolygon(int n, const wxPoint points[],
 137                                wxCoord xoffset, wxCoord yoffset,
 138                                wxPolygonFillMode fillStyle = wxODDEVEN_RULE);
 139
 140     // implementation from now on:
 141 protected:
 142     wxIDirectFBFontPtr GetCurrentFont() const;
 143
 144 private:
 145     // Unified implementation of DrawIcon, DrawBitmap and Blit:
 146     void DoDrawSubBitmap(const wxBitmap &bmp,
 147                          wxCoord x, wxCoord y, wxCoord w, wxCoord h,
 148                          wxCoord destx, wxCoord desty, int rop, bool useMask);
 149     bool DoBlitFromSurface(const wxIDirectFBSurfacePtr& src,
 150                            wxCoord srcx, wxCoord srcy,
 151                            wxCoord w, wxCoord h,
 152                            wxCoord dstx, wxCoord dsty);
 153
 154     // selects colour into surface's state
 155     void SelectColour(const wxColour& clr);
 156
 157 protected:
 158     wxIDirectFBSurfacePtr m_surface;
 159
 160     double            m_mm_to_pix_x, m_mm_to_pix_y;
 161
 162     friend class WXDLLIMPEXP_FWD_CORE wxOverlayImpl; // for Init
 163
 164     DECLARE_ABSTRACT_CLASS(wxDFBDCImpl)
 165 };
 166
 167 #endif // _WX_DFB_DC_H_