src/Fl_Cairo.cxx

   1 //
   2 // "$Id: Fl_Cairo.cxx 8198 2011-01-06 10:24:58Z manolo $"
   3 //
   4 // Main header file for the Fast Light Tool Kit (FLTK).
   5 //
   6 // Copyright 1998-2010 by Bill Spitzak and others.
   7 //
   8 // This library is free software; you can redistribute it and/or
   9 // modify it under the terms of the GNU Library General Public
  10 // License as published by the Free Software Foundation; either
  11 // version 2 of the License, or (at your option) any later version.
  12 //
  13 // This library is distributed in the hope that it will be useful,
  14 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  16 // Library General Public License for more details.
  17 //
  18 // You should have received a copy of the GNU Library General Public
  19 // License along with this library; if not, write to the Free Software
  20 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
  21 // USA.
  22 //
  23 // Please report all bugs and problems on the following page:
  24 //
  25 //     http://www.fltk.org/str.php
  26 //
  27
  28 #include <config.h>
  29
  30 #include <FL/Fl.H>
  31 #include <FL/x.H>
  32 #include <FL/Fl_Window.H>
  33 #ifdef __APPLE__
  34 #include <Carbon/Carbon.h>
  35 #endif
  36
  37 /*
  38     Creates transparently a cairo_surface_t object.
  39     gc is an HDC context in  WIN32, a CGContext* in Quartz, a display on X11
  40  */
  41 cairo_surface_t * cairo_create_surface(void * gc, Window w, int W, int H) {
  42 # if defined(USE_X11)
  43     return cairo_xlib_surface_create(fl_display, w, fl_visual->visual, W, H);
  44 # elif   defined(WIN32)
  45     return cairo_win32_surface_create((HDC) gc);
  46 # elif defined(__APPLE_QUARTZ__)
  47     return cairo_quartz_surface_create_for_cg_context((CGContext*) gc, W, H);
  48 # else
  49 #  error Cairo is not supported under this platform.
  50 # endif
  51 }
  52
  53 cairo_t *fl_cairo_context;
  54
  55 cairo_surface_t *
  56 Fl::cairo_create_surface ( Window xid, int W, int H )
  57 {
  58     return ::cairo_create_surface( fl_gc, xid, W, H );
  59 }
  60
  61 cairo_t *
  62 Fl::cairo_make_current( cairo_t *cc )
  63 {
  64     fl_cairo_context = cc;
  65
  66     return cc;
  67 }
  68
  69 //
  70 // End of "$Id: Fl_Cairo.cxx 8198 2011-01-06 10:24:58Z manolo $" .
  71 //