diff options
| -rw-r--r-- | FL/Fl_Graphics_Driver.H | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/FL/Fl_Graphics_Driver.H b/FL/Fl_Graphics_Driver.H index 0d181f68e..3184dd5d2 100644 --- a/FL/Fl_Graphics_Driver.H +++ b/FL/Fl_Graphics_Driver.H @@ -66,9 +66,12 @@ struct Fl_Fontdesc; Fl_Surface_Device::pop_current() / Fl_Surface_Device::set_current(). \p The Fl_Graphics_Driver class is of interest if one wants to perform new kinds of drawing operations. - An example would be to draw to a PDF file. This would involve creating a new Fl_Graphics_Driver derived - class. This new class should implement all virtual methods of the Fl_Graphics_Driver class - to support all FLTK drawing functions. + An example would be to draw to an SVG file. This would require to create a new class, + say SVG_Graphics_Driver, derived from class Fl_Graphics_Driver, and another new class, + say SVG_Surface, derived from class Fl_Surface_Device. The new SVG_Graphics_Driver class should + implement all virtual methods of the Fl_Graphics_Driver class to support all FLTK drawing functions + and have them draw into SVG files. Alternatively, class SVG_Graphics_Driver could implement only some + virtual methods, and only part of FLTK drawing functions would be usable when drawing to SVG files. \p The Fl_Graphics_Driver class is essential for developers of the FLTK library. Each platform supported by FLTK requires to create a derived class of Fl_Graphics_Driver that |