interface/wx/dcsvg.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        dcsvg.h
   3 // Purpose:     interface of wxSVGFileDC
   4 // Author:      wxWidgets team
   5 // RCS-ID:      $Id$
   6 // Licence:     wxWindows license
   7 /////////////////////////////////////////////////////////////////////////////
   8
   9 /**
  10     @class wxSVGFileDC
  11
  12     A wxSVGFileDC is a device context onto which graphics and text can be
  13     drawn, and the output produced as a vector file, in SVG format (see the W3C
  14     SVG Specifications <http://www.w3.org/TR/2001/REC-SVG-20010904/>). This
  15     format can be read by a range of programs, including a Netscape plugin
  16     (Adobe), full details are given in the SVG Implementation and Resource
  17     Directory <http://www.svgi.org/>. Vector formats may often be smaller than
  18     raster formats.
  19
  20     The intention behind wxSVGFileDC is that it can be used to produce a file
  21     corresponding to the screen display context, wxSVGFileDC, by passing the
  22     wxSVGFileDC as a parameter instead of a wxSVGFileDC. Thus the wxSVGFileDC
  23     is a write-only class.
  24
  25     As the wxSVGFileDC is a vector format, raster operations like GetPixel()
  26     are unlikely to be supported. However, the SVG specification allows for PNG
  27     format raster files to be embedded in the SVG, and so bitmaps, icons and
  28     blit operations in wxSVGFileDC are supported.
  29
  30     A more substantial SVG library (for reading and writing) is available at
  31     the wxArt2D website <http://wxart2d.sourceforge.net/>.
  32
  33     @library{wxcore}
  34     @category{dc}
  35 */
  36 class wxSVGFileDC : public wxDC
  37 {
  38 public:
  39     /**
  40         Initializes a wxSVGFileDC with the given @a f filename with the given
  41         @a Width and @a Height at @a dpi resolution.
  42     */
  43     wxSVGFileDC(const wxString& filename, int width = 320, int height = 240, double dpi = 72);
  44
  45     /**
  46         Destructor.
  47     */
  48     virtual ~wxSVGFileDC();
  49
  50     /**
  51         Does nothing.
  52     */
  53     void EndDoc();
  54
  55     /**
  56         Does nothing.
  57     */
  58     void EndPage();
  59
  60     /**
  61         This makes no sense in wxSVGFileDC and does nothing.
  62     */
  63     void Clear();
  64
  65     /**
  66         Does the same as wxDC::SetLogicalFunction(), except that only wxCOPY is
  67         available. Trying to set one of the other values will fail.
  68     */
  69     void SetLogicalFunction(wxRasterOperationMode function);
  70
  71     //@{
  72     /**
  73         Functions not implemented in this DC class.
  74     */
  75     void CrossHair(wxCoord x, wxCoord y);
  76     void DestroyClippingRegion();
  77     bool FloodFill(wxCoord x, wxCoord y, const wxColour& colour,
  78                    wxFloodFillStyle style = wxFLOOD_SURFACE);
  79     void GetClippingBox(wxCoord *x, wxCoord *y, wxCoord *width, wxCoord *height) const;
  80     bool GetPixel(wxCoord x, wxCoord y, wxColour* colour) const;
  81     void SetClippingRegion(wxCoord x, wxCoord y, wxCoord width,
  82                            wxCoord height);
  83     void SetClippingRegion(const wxPoint& pt, const wxSize& sz);
  84     void SetClippingRegion(const wxRect& rect);
  85     void SetClippingRegion(const wxRegion& region);
  86     void SetPalette(const wxPalette& palette);
  87     bool StartDoc(const wxString& message);
  88     //@}
  89 };
  90