include/wx/dcsvg.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/dcsvg.h
   3 // Purpose:     wxSVGFileDC
   4 // Author:      Chris Elliott
   5 // Modified by:
   6 // Created:
   7 // Copyright:   (c) Chris Elliott
   8 // RCS-ID:      $Id$
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef _WX_DCSVG_H_
  13 #define _WX_DCSVG_H_
  14
  15 #include "wx/string.h"
  16 #include "wx/dc.h"
  17
  18 #if wxUSE_SVG
  19
  20 #define wxSVGVersion wxT("v0100")
  21
  22 #ifdef __BORLANDC__
  23 #pragma warn -8008
  24 #pragma warn -8066
  25 #endif
  26
  27 class WXDLLIMPEXP_FWD_BASE wxFileOutputStream;
  28
  29
  30
  31 class WXDLLIMPEXP_FWD_CORE wxSVGFileDC;
  32
  33 class WXDLLIMPEXP_CORE wxSVGFileDCImpl : public wxDCImpl
  34 {
  35 public:
  36     wxSVGFileDCImpl( wxSVGFileDC *owner, const wxString &filename,
  37                      int width=320, int height=240, double dpi=72.0 );
  38
  39     virtual ~wxSVGFileDCImpl();
  40
  41     bool IsOk() const { return m_OK; }
  42
  43     virtual bool CanDrawBitmap() const { return true; }
  44     virtual bool CanGetTextExtent() const { return true; }
  45
  46     virtual int GetDepth() const
  47     {
  48         wxFAIL_MSG(wxT("wxSVGFILEDC::GetDepth Call not implemented"));
  49         return -1;
  50     }
  51
  52     virtual void Clear()
  53     {
  54         wxFAIL_MSG(wxT("wxSVGFILEDC::Clear() Call not implemented \nNot sensible for an output file?"));
  55     }
  56
  57     virtual void DestroyClippingRegion()
  58     {
  59         wxFAIL_MSG(wxT("wxSVGFILEDC::void Call not yet implemented"));
  60     }
  61
  62     virtual wxCoord GetCharHeight() const;
  63     virtual wxCoord GetCharWidth() const;
  64
  65     virtual void SetClippingRegion(wxCoord WXUNUSED(x), wxCoord WXUNUSED(y),
  66                                    wxCoord WXUNUSED(w), wxCoord WXUNUSED(h))
  67     {
  68         wxFAIL_MSG(wxT("wxSVGFILEDC::SetClippingRegion not implemented"));
  69     }
  70
  71     virtual void SetPalette(const wxPalette&  WXUNUSED(palette))
  72     {
  73         wxFAIL_MSG(wxT("wxSVGFILEDC::SetPalette not implemented"));
  74     }
  75
  76     virtual void GetClippingBox(wxCoord *WXUNUSED(x), wxCoord *WXUNUSED(y),
  77                                 wxCoord *WXUNUSED(w), wxCoord *WXUNUSED(h))
  78     {
  79         wxFAIL_MSG(wxT("wxSVGFILEDC::GetClippingBox not implemented"));
  80     }
  81
  82     virtual void SetLogicalFunction(wxRasterOperationMode WXUNUSED(function))
  83     {
  84         wxFAIL_MSG(wxT("wxSVGFILEDC::SetLogicalFunction Call not implemented"));
  85     }
  86
  87     virtual wxRasterOperationMode GetLogicalFunction() const
  88     {
  89         wxFAIL_MSG(wxT("wxSVGFILEDC::GetLogicalFunction() not implemented"));
  90         return wxCOPY;
  91     }
  92
  93     virtual void SetBackground( const wxBrush &brush );
  94     virtual void SetBackgroundMode( int mode );
  95     virtual void SetBrush(const wxBrush& brush);
  96     virtual void SetFont(const wxFont& font);
  97     virtual void SetPen(const wxPen& pen);
  98
  99     virtual void* GetHandle() const { return NULL; }
 100
 101 private:
 102    virtual bool DoGetPixel(wxCoord, wxCoord, wxColour *) const
 103    {
 104        wxFAIL_MSG(wxT("wxSVGFILEDC::DoGetPixel Call not implemented"));
 105        return true;
 106    }
 107
 108    virtual bool DoBlit(wxCoord, wxCoord, wxCoord, wxCoord, wxDC *,
 109                        wxCoord, wxCoord, wxRasterOperationMode = wxCOPY,
 110                        bool = 0, int = -1, int = -1);
 111
 112    virtual void DoCrossHair(wxCoord, wxCoord)
 113    {
 114        wxFAIL_MSG(wxT("wxSVGFILEDC::CrossHair Call not implemented"));
 115    }
 116
 117    virtual void DoDrawArc(wxCoord, wxCoord, wxCoord, wxCoord, wxCoord, wxCoord);
 118
 119    virtual void DoDrawBitmap(const wxBitmap &, wxCoord, wxCoord, bool = false);
 120
 121    virtual void DoDrawCheckMark(wxCoord x, wxCoord y, wxCoord w, wxCoord h);
 122
 123    virtual void DoDrawEllipse(wxCoord x, wxCoord y, wxCoord w, wxCoord h);
 124
 125    virtual void DoDrawEllipticArc(wxCoord x, wxCoord y, wxCoord w, wxCoord h,
 126                                   double sa, double ea);
 127
 128    virtual void DoDrawIcon(const wxIcon &, wxCoord, wxCoord);
 129
 130    virtual void DoDrawLine (wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2);
 131
 132    virtual void DoDrawLines(int n, wxPoint points[],
 133                             wxCoord xoffset = 0, wxCoord yoffset = 0);
 134
 135    virtual void DoDrawPoint(wxCoord, wxCoord);
 136
 137    virtual void DoDrawPolygon(int n, wxPoint points[],
 138                               wxCoord xoffset, wxCoord yoffset,
 139                               wxPolygonFillMode fillStyle);
 140
 141    virtual void DoDrawRectangle(wxCoord x, wxCoord y, wxCoord w, wxCoord h);
 142
 143    virtual void DoDrawRotatedText(const wxString& text, wxCoord x, wxCoord y,
 144                                   double angle);
 145
 146    virtual void DoDrawRoundedRectangle(wxCoord x, wxCoord y,
 147                                        wxCoord w, wxCoord h,
 148                                        double radius = 20) ;
 149
 150    virtual void DoDrawText(const wxString& text, wxCoord x, wxCoord y);
 151
 152    virtual bool DoFloodFill(wxCoord WXUNUSED(x), wxCoord WXUNUSED(y),
 153                             const wxColour& WXUNUSED(col),
 154                             wxFloodFillStyle WXUNUSED(style) = wxFLOOD_SURFACE)
 155    {
 156        wxFAIL_MSG(wxT("wxSVGFILEDC::DoFloodFill Call not implemented"));
 157        return false;
 158    }
 159
 160    virtual void DoGetSize(int * x, int *y) const
 161    {
 162        if ( x )
 163            *x = m_width;
 164        if ( y )
 165            *y = m_height;
 166    }
 167
 168    virtual void DoGetTextExtent(const wxString& string, wxCoord *w, wxCoord *h,
 169                                 wxCoord *descent = NULL,
 170                                 wxCoord *externalLeading = NULL,
 171                                 const wxFont *font = NULL) const;
 172
 173    virtual void DoSetDeviceClippingRegion(const wxRegion& WXUNUSED(region))
 174    {
 175        wxFAIL_MSG(wxT("wxSVGFILEDC::DoSetDeviceClippingRegion not yet implemented"));
 176    }
 177
 178    virtual void DoSetClippingRegion( int WXUNUSED(x),  int WXUNUSED(y), int WXUNUSED(width), int WXUNUSED(height) )
 179    {
 180        wxFAIL_MSG(wxT("wxSVGFILEDC::DoSetClippingRegion not yet implemented"));
 181    }
 182
 183    virtual void DoGetSizeMM( int *width, int *height ) const;
 184
 185    virtual wxSize GetPPI() const;
 186
 187    void Init (const wxString &filename, int width, int height, double dpi);
 188
 189    void write( const wxString &s );
 190
 191 private:
 192    // If m_graphics_changed is true, close the current <g> element and start a
 193    // new one for the last pen/brush change.
 194    void NewGraphicsIfNeeded();
 195
 196    wxFileOutputStream *m_outfile;
 197    wxString            m_filename;
 198    int                 m_sub_images; // number of png format images we have
 199    bool                m_OK;
 200    bool                m_graphics_changed;  // set by Set{Brush,Pen}()
 201    int                 m_width, m_height;
 202    double              m_dpi;
 203
 204 private:
 205    DECLARE_ABSTRACT_CLASS(wxSVGFileDCImpl)
 206 };
 207
 208
 209 class WXDLLIMPEXP_CORE wxSVGFileDC : public wxDC
 210 {
 211 public:
 212     wxSVGFileDC(const wxString& filename,
 213                 int width = 320,
 214                 int height = 240,
 215                 double dpi = 72.0)
 216         : wxDC(new wxSVGFileDCImpl(this, filename, width, height, dpi))
 217     {
 218     }
 219 };
 220
 221 #endif // wxUSE_SVG
 222
 223 #endif // _WX_DCSVG_H_