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 __DCSVG_H
  13 #define __DCSVG_H
  14
  15 #include "wx/wfstream.h"
  16 #include "wx/string.h"
  17
  18 #define wxSVGVersion wxT("v0100")
  19
  20 #ifdef __BORLANDC__
  21 #pragma warn -8008
  22 #pragma warn -8066
  23 #endif
  24
  25 class WXDLLIMPEXP_CORE wxSVGFileDC : public wxDC
  26 {
  27
  28     private:
  29         wxFileOutputStream * m_outfile ;
  30         wxString m_filename ;
  31         //holds number of png format images we have
  32         int m_sub_images ;
  33         bool m_OK, m_graphics_changed ;
  34         int m_width, m_height ;
  35
  36         double
  37             m_logicalScaleX,
  38             m_logicalScaleY,
  39             m_userScaleX,
  40             m_userScaleY,
  41             m_scaleX,
  42             m_scaleY,
  43             m_OriginX,
  44             m_OriginY,
  45             m_mm_to_pix_x,
  46             m_mm_to_pix_y;
  47
  48         bool
  49             m_needComputeScaleX,
  50             m_needComputeScaleY; // not yet used
  51
  52
  53         bool DoGetPixel(wxCoord, wxCoord, class wxColour *) const
  54             { wxASSERT_MSG (false, wxT("wxSVGFILEDC::DoGetPixel Call not implemented")); return true; }
  55
  56         virtual bool DoBlit(wxCoord, wxCoord, wxCoord, wxCoord, class wxDC *,
  57             wxCoord, wxCoord, int = wxCOPY, bool = 0, int = -1, int = -1) ;
  58
  59         void DoCrossHair(wxCoord, wxCoord)
  60             { wxASSERT_MSG (false, wxT("wxSVGFILEDC::CrossHair Call not implemented")); return  ; }
  61
  62         void DoDrawArc(wxCoord, wxCoord, wxCoord, wxCoord, wxCoord, wxCoord);
  63
  64         void DoDrawBitmap(const class wxBitmap &, wxCoord, wxCoord, bool = 0) ;
  65
  66         void DoDrawCheckMark(wxCoord x, wxCoord y, wxCoord width, wxCoord height) ;
  67
  68         void DoDrawEllipse(wxCoord x, wxCoord y, wxCoord width, wxCoord height) ;
  69
  70         void DoDrawEllipticArc(wxCoord x,wxCoord y,wxCoord w,wxCoord h,double sa,double ea) ;
  71
  72         void DoDrawIcon(const class wxIcon &, wxCoord, wxCoord) ;
  73
  74         void DoDrawLine (wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2) ;
  75
  76         void DoDrawPoint(wxCoord, wxCoord) ;
  77
  78         void DoDrawPolygon(int n, wxPoint points[], wxCoord xoffset, wxCoord yoffset,int fillStyle) ;
  79
  80         void DoDrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height) ;
  81
  82         void DoDrawRotatedText(const wxString& text, wxCoord x, wxCoord y, double angle) ;
  83
  84         void DoDrawRoundedRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height, double radius = 20)  ;
  85
  86         void DoDrawText(const wxString& text, wxCoord x, wxCoord y);
  87
  88         bool DoFloodFill(wxCoord WXUNUSED(x), wxCoord WXUNUSED(y), const wxColour& WXUNUSED(col),
  89                              int WXUNUSED(style) = wxFLOOD_SURFACE)
  90             { wxASSERT_MSG (false, wxT("wxSVGFILEDC::DoFloodFill Call not implemented")); return false ; }
  91
  92         void DoGetSize(int * x, int *y) const { *x = m_width; *y = m_height ; return ; }
  93
  94         void DoGetTextExtent(const wxString& string, wxCoord *w, wxCoord *h, wxCoord *descent = NULL, wxCoord *externalLeading = NULL, const wxFont *font = NULL) const ;
  95
  96         void DoSetClippingRegionAsRegion(const class wxRegion &)
  97             { wxASSERT_MSG (false, wxT("wxSVGFILEDC::DoSetClippingRegionAsRegion Call not yet implemented")); return  ; }
  98
  99        void Init (wxString f, int Width, int Height, float dpi);
 100
 101        void NewGraphics () ;
 102
 103 #ifdef XDEV2LOG
 104 #undef XDEV2LOG
 105 #endif
 106         wxCoord XDEV2LOG(wxCoord x) const
 107         {
 108             wxCoord new_x = x - m_deviceOriginX;
 109             if (new_x > 0)
 110                 return (wxCoord)((double)(new_x) / m_scaleX + 0.5) * m_signX + m_logicalOriginX;
 111             else
 112                 return (wxCoord)((double)(new_x) / m_scaleX - 0.5) * m_signX + m_logicalOriginX;
 113         }
 114 #ifdef XDEV2LOGREL
 115 #undef XDEV2LOGREL
 116 #endif
 117         wxCoord XDEV2LOGREL(wxCoord x) const
 118         {
 119             if (x > 0)
 120                 return (wxCoord)((double)(x) / m_scaleX + 0.5);
 121             else
 122                 return (wxCoord)((double)(x) / m_scaleX - 0.5);
 123         }
 124 #ifdef YDEV2LOG
 125 #undef YDEV2LOG
 126 #endif
 127         wxCoord YDEV2LOG(wxCoord y) const
 128         {
 129             wxCoord new_y = y - m_deviceOriginY;
 130             if (new_y > 0)
 131                 return (wxCoord)((double)(new_y) / m_scaleY + 0.5) * m_signY + m_logicalOriginY;
 132             else
 133                 return (wxCoord)((double)(new_y) / m_scaleY - 0.5) * m_signY + m_logicalOriginY;
 134         }
 135 #ifdef YDEV2LOGREL
 136 #undef YDEV2LOGREL
 137 #endif
 138         wxCoord YDEV2LOGREL(wxCoord y) const
 139         {
 140             if (y > 0)
 141                 return (wxCoord)((double)(y) / m_scaleY + 0.5);
 142             else
 143                 return (wxCoord)((double)(y) / m_scaleY - 0.5);
 144         }
 145 #ifdef XLOG2DEV
 146 #undef XLOG2DEV
 147 #endif
 148         wxCoord XLOG2DEV(wxCoord x) const
 149         {
 150             wxCoord new_x = x - m_logicalOriginX;
 151             if (new_x > 0)
 152                 return (wxCoord)((double)(new_x) * m_scaleX + 0.5) * m_signX + m_deviceOriginX;
 153             else
 154                 return (wxCoord)((double)(new_x) * m_scaleX - 0.5) * m_signX + m_deviceOriginX;
 155         }
 156 #ifdef XLOG2DEVREL
 157 #undef XLOG2DEVREL
 158 #endif
 159         wxCoord XLOG2DEVREL(wxCoord x) const
 160         {
 161             if (x > 0)
 162                 return (wxCoord)((double)(x) * m_scaleX + 0.5);
 163             else
 164                 return (wxCoord)((double)(x) * m_scaleX - 0.5);
 165         }
 166 #ifdef YLOG2DEV
 167 #undef YLOG2DEV
 168 #endif
 169         wxCoord YLOG2DEV(wxCoord y) const
 170         {
 171             wxCoord new_y = y - m_logicalOriginY;
 172             if (new_y > 0)
 173                 return (wxCoord)((double)(new_y) * m_scaleY + 0.5) * m_signY + m_deviceOriginY;
 174             else
 175                 return (wxCoord)((double)(new_y) * m_scaleY - 0.5) * m_signY + m_deviceOriginY;
 176         }
 177 #ifdef YLOG2DEVREL
 178 #undef YLOG2DEVREL
 179 #endif
 180         wxCoord YLOG2DEVREL(wxCoord y) const
 181         {
 182             if (y > 0)
 183                 return (wxCoord)((double)(y) * m_scaleY + 0.5);
 184             else
 185                 return (wxCoord)((double)(y) * m_scaleY - 0.5);
 186         }
 187
 188         void write(const wxString &s);
 189
 190     public:
 191
 192         wxSVGFileDC (wxString f);
 193         wxSVGFileDC (wxString f, int Width, int Height);
 194         wxSVGFileDC (wxString f, int Width, int Height, float dpi);
 195         ~wxSVGFileDC();
 196
 197
 198         bool CanDrawBitmap() const { return true; }
 199
 200         bool CanGetTextExtent() const { return true; }
 201
 202         int GetDepth() const
 203             { wxASSERT_MSG (false, wxT("wxSVGFILEDC::GetDepth Call not implemented")); return -1 ; }
 204
 205         void BeginDrawing() { return;}
 206
 207         bool Blit(wxCoord xdest, wxCoord ydest, wxCoord width, wxCoord height, wxDC* source, wxCoord xsrc, wxCoord ysrc, int logicalFunc = wxCOPY, bool useMask = false)
 208             { return DoBlit(xdest, ydest, width, height, source, xsrc, ysrc, logicalFunc, useMask); }
 209
 210         void Clear()
 211             { wxASSERT_MSG (false, wxT("wxSVGFILEDC::Clear() Call not implemented \nNot sensible for an output file?")); return ; }
 212
 213         void CrossHair(wxCoord x, wxCoord y)
 214             { DoCrossHair (x,y); return; }
 215
 216         virtual void ComputeScaleAndOrigin();
 217
 218         void DestroyClippingRegion()
 219             { wxASSERT_MSG (false, wxT("wxSVGFILEDC::void Call not yet implemented")); return ; }
 220
 221         wxCoord DeviceToLogicalX(wxCoord x) const ;
 222
 223         wxCoord DeviceToLogicalXRel(wxCoord x)  const ;
 224
 225         wxCoord DeviceToLogicalY(wxCoord y)  const ;
 226
 227         wxCoord DeviceToLogicalYRel(wxCoord y)  const ;
 228
 229         void DrawBitmap(const wxBitmap& bitmap, wxCoord x, wxCoord y, bool transparent)
 230             {  DoDrawBitmap ( bitmap, x, y, transparent ) ; return ;}
 231
 232         void DrawIcon(const wxIcon& icon, wxCoord x, wxCoord y)
 233             {DoDrawIcon(icon, x, y) ; return ; }
 234
 235         void DoDrawLines(int n, wxPoint points[], wxCoord xoffset = 0, wxCoord yoffset = 0) ;
 236
 237         void EndDoc()
 238             { return ; }
 239
 240         void EndDrawing()
 241             { return ; }
 242
 243         void EndPage()
 244             {  return ; }
 245
 246         void FloodFill(wxCoord x, wxCoord y, wxColour *colour, int style=wxFLOOD_SURFACE)
 247             { DoFloodFill (x, y, *colour, style); return ;}
 248
 249         wxCoord GetCharHeight() const;
 250
 251         wxCoord GetCharWidth() const;
 252
 253         void GetClippingBox(wxCoord *WXUNUSED(x), wxCoord *WXUNUSED(y), wxCoord * WXUNUSED(width), wxCoord * WXUNUSED(height))
 254             { wxASSERT_MSG (false, wxT("wxSVGFILEDC::GetClippingBox Call not yet implemented")); return ; }
 255
 256         int GetLogicalFunction() const
 257             { wxASSERT_MSG (false, wxT("wxSVGFILEDC::GetLogicalFunction()  Call not implemented")); return wxCOPY ; }
 258
 259         int GetMapMode() const ;
 260
 261         bool GetPixel(wxCoord x, wxCoord y, wxColour *colour)
 262             { return DoGetPixel (x, y, colour) ; }
 263
 264         void GetUserScale(double *x, double *y) const ;
 265
 266         wxCoord LogicalToDeviceX(wxCoord x)  const ;
 267
 268         wxCoord LogicalToDeviceXRel(wxCoord x)  const ;
 269
 270         wxCoord LogicalToDeviceY(wxCoord y)  const ;
 271
 272         wxCoord LogicalToDeviceYRel(wxCoord y)  const ;
 273
 274         bool Ok() const {return m_OK;}
 275
 276         void SetAxisOrientation( bool xLeftRight, bool yBottomUp ) ;
 277
 278         void SetClippingRegion(wxCoord  WXUNUSED(x), wxCoord  WXUNUSED(y), wxCoord  WXUNUSED(width), wxCoord  WXUNUSED(height))
 279             { wxASSERT_MSG (false, wxT("wxSVGFILEDC::SetClippingRegion Call not yet implemented")); return ; }
 280
 281         void SetPalette(const wxPalette&  WXUNUSED(palette))
 282             { wxASSERT_MSG (false, wxT("wxSVGFILEDC::SetPalette Call not yet implemented")); return ; }
 283
 284         void SetBackground( const wxBrush &brush ) ;
 285
 286         void SetBackgroundMode( int mode ) ;
 287
 288         void SetBrush(const wxBrush& brush) ;
 289
 290         void SetFont(const wxFont& font) ;
 291
 292         void SetLogicalFunction(int  WXUNUSED(function))
 293             { wxASSERT_MSG (false, wxT("wxSVGFILEDC::SetLogicalFunction Call not implemented")); return ; }
 294
 295         void SetLogicalScale( double x, double y ) ;
 296
 297         void SetLogicalOrigin( wxCoord x, wxCoord y ) ;
 298
 299         void SetDeviceOrigin( wxCoord x, wxCoord y ) ;
 300
 301         void SetMapMode(int anint) ;
 302
 303         void SetPen(const wxPen& pen)  ;
 304
 305         void SetUserScale(double xScale, double yScale) ;
 306
 307         bool StartDoc(const wxString&  WXUNUSED(message))
 308             {  return false; }
 309
 310         void StartPage()
 311             {  return ; }
 312 };
 313
 314 #endif      // __DCSVG_H