This gives the same drawing capabilities to all supported drawing
surfaces: display, printer, clipboard, in-memory bitmap image,
PostScript file.
Also, completed the Mac OS implementation of
Fl_Copy_Surface::draw_decorated_window(Fl_Window *win, int delta_x=0, int delta_y=0)
that did not honor non-zero last arguments.
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3@10990 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
Added Fl_Image_Surface class to draw into an Fl_Image object.
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3@10159 ea41ed52-d2ee-0310-a9c1-e6b18d33e121