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 // RCS-ID:      $Id$
   7 // Copyright:   (c) 2006 REA Elektronik GmbH
   8 // Licence:     wxWindows licence
   9 /////////////////////////////////////////////////////////////////////////////
  10
  11 #ifndef _WX_DFB_DC_H_
  12 #define _WX_DFB_DC_H_
  13
  14 #include "wx/defs.h"
  15 #include "wx/region.h"
  16 #include "wx/dc.h"
  17 #include "wx/dfb/dfbptr.h"
  18
  19 wxDFB_DECLARE_INTERFACE(IDirectFBSurface);
  20
  21 //-----------------------------------------------------------------------------
  22 // wxDFBDCImpl
  23 //-----------------------------------------------------------------------------
  24
  25 class WXDLLIMPEXP_CORE wxDFBDCImpl : public wxDCImpl
  26 {
  27 public:
  28     // ctors
  29     wxDFBDCImpl(wxDC *owner) : wxDCImpl(owner) { m_surface = NULL; }
  30     wxDFBDCImpl(wxDC *owner, const wxIDirectFBSurfacePtr& surface)
  31         : wxDCImpl(owner)
  32     {
  33         DFBInit(surface);
  34     }
  35
  36     bool IsOk() const { return m_surface != NULL; }
  37
  38     // implement base class pure virtuals
  39     // ----------------------------------
  40
  41     virtual void Clear();
  42
  43     virtual bool StartDoc(const wxString& message);
  44     virtual void EndDoc();
  45
  46     virtual void StartPage();
  47     virtual void EndPage();
  48
  49     virtual void SetFont(const wxFont& font);
  50     virtual void SetPen(const wxPen& pen);
  51     virtual void SetBrush(const wxBrush& brush);
  52     virtual void SetBackground(const wxBrush& brush);
  53     virtual void SetBackgroundMode(int mode);
  54 #if wxUSE_PALETTE
  55     virtual void SetPalette(const wxPalette& palette);
  56 #endif
  57
  58     virtual void SetLogicalFunction(int function);
  59
  60     virtual void DestroyClippingRegion();
  61
  62     virtual wxCoord GetCharHeight() const;
  63     virtual wxCoord GetCharWidth() const;
  64     virtual void DoGetTextExtent(const wxString& string,
  65                                  wxCoord *x, wxCoord *y,
  66                                  wxCoord *descent = NULL,
  67                                  wxCoord *externalLeading = NULL,
  68                                  const wxFont *theFont = NULL) const;
  69
  70     virtual bool CanDrawBitmap() const { return true; }
  71     virtual bool CanGetTextExtent() const { return true; }
  72     virtual int GetDepth() const;
  73     virtual wxSize GetPPI() const;
  74
  75     // Returns the surface (and increases its ref count)
  76     wxIDirectFBSurfacePtr GetDirectFBSurface() const { return m_surface; }
  77
  78 protected:
  79     // implementation
  80     wxCoord XDEV2LOG(wxCoord x) const       { return DeviceToLogicalX(x); }
  81     wxCoord XDEV2LOGREL(wxCoord x) const    { return DeviceToLogicalXRel(x); }
  82     wxCoord YDEV2LOG(wxCoord y) const       { return DeviceToLogicalY(y); }
  83     wxCoord YDEV2LOGREL(wxCoord y) const    { return DeviceToLogicalYRel(y); }
  84     wxCoord XLOG2DEV(wxCoord x) const       { return LogicalToDeviceX(x); }
  85     wxCoord XLOG2DEVREL(wxCoord x) const    { return LogicalToDeviceXRel(x); }
  86     wxCoord YLOG2DEV(wxCoord y) const       { return LogicalToDeviceY(y); }
  87     wxCoord YLOG2DEVREL(wxCoord y) const    { return LogicalToDeviceYRel(y); }
  88
  89     // initializes the DC from a surface, must be called if default ctor
  90     // was used
  91     void DFBInit(const wxIDirectFBSurfacePtr& surface);
  92
  93     virtual bool DoFloodFill(wxCoord x, wxCoord y, const wxColour& col,
  94                              int style = wxFLOOD_SURFACE);
  95
  96     virtual bool DoGetPixel(wxCoord x, wxCoord y, wxColour *col) const;
  97
  98     virtual void DoDrawPoint(wxCoord x, wxCoord y);
  99     virtual void DoDrawLine(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2);
 100
 101     virtual void DoDrawArc(wxCoord x1, wxCoord y1,
 102                            wxCoord x2, wxCoord y2,
 103                            wxCoord xc, wxCoord yc);
 104     virtual void DoDrawEllipticArc(wxCoord x, wxCoord y, wxCoord w, wxCoord h,
 105                                    double sa, double ea);
 106
 107     virtual void DoDrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height);
 108     virtual void DoDrawRoundedRectangle(wxCoord x, wxCoord y,
 109                                         wxCoord width, wxCoord height,
 110                                         double radius);
 111     virtual void DoDrawEllipse(wxCoord x, wxCoord y, wxCoord width, wxCoord height);
 112
 113     virtual void DoCrossHair(wxCoord x, wxCoord y);
 114
 115     virtual void DoDrawIcon(const wxIcon& icon, wxCoord x, wxCoord y);
 116     virtual void DoDrawBitmap(const wxBitmap &bmp, wxCoord x, wxCoord y,
 117                               bool useMask = false);
 118
 119     virtual void DoDrawText(const wxString& text, wxCoord x, wxCoord y);
 120     virtual void DoDrawRotatedText(const wxString& text, wxCoord x, wxCoord y,
 121                                    double angle);
 122
 123     virtual bool DoBlit(wxCoord xdest, wxCoord ydest, wxCoord width, wxCoord height,
 124                         wxDC *source, wxCoord xsrc, wxCoord ysrc,
 125                         int rop = wxCOPY, bool useMask = false, wxCoord xsrcMask = -1, wxCoord ysrcMask = -1);
 126
 127     // this is gnarly - we can't even call this function DoSetClippingRegion()
 128     // because of virtual function hiding
 129     virtual void DoSetClippingRegionAsRegion(const wxRegion& region);
 130     virtual void DoSetClippingRegion(wxCoord x, wxCoord y,
 131                                      wxCoord width, wxCoord height);
 132
 133     virtual void DoGetSize(int *width, int *height) const;
 134     virtual void DoGetSizeMM(int* width, int* height) const;
 135
 136     virtual void DoDrawLines(int n, wxPoint points[],
 137                              wxCoord xoffset, wxCoord yoffset);
 138     virtual void DoDrawPolygon(int n, wxPoint points[],
 139                                wxCoord xoffset, wxCoord yoffset,
 140                                int fillStyle = wxODDEVEN_RULE);
 141
 142     // implementation from now on:
 143 protected:
 144     wxIDirectFBFontPtr GetCurrentFont() const;
 145
 146 private:
 147     // Unified implementation of DrawIcon, DrawBitmap and Blit:
 148     void DoDrawSubBitmap(const wxBitmap &bmp,
 149                          wxCoord x, wxCoord y, wxCoord w, wxCoord h,
 150                          wxCoord destx, wxCoord desty, int rop, bool useMask);
 151     bool DoBlitFromSurface(const wxIDirectFBSurfacePtr& src,
 152                            wxCoord srcx, wxCoord srcy,
 153                            wxCoord w, wxCoord h,
 154                            wxCoord dstx, wxCoord dsty);
 155
 156     // selects colour into surface's state
 157     void SelectColour(const wxColour& clr);
 158
 159 protected:
 160     wxIDirectFBSurfacePtr m_surface;
 161
 162     double            m_mm_to_pix_x, m_mm_to_pix_y;
 163
 164     friend class WXDLLIMPEXP_FWD_CORE wxOverlayImpl; // for Init
 165
 166     DECLARE_ABSTRACT_CLASS(wxDFBDCImpl)
 167 };
 168
 169 #endif // _WX_DFB_DC_H_