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