FLTK 1.3.0
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00001 // 00002 // "$Id$" 00003 // 00004 // Main header file for the Fast Light Tool Kit (FLTK). 00005 // 00006 // Copyright 1998-2010 by Bill Spitzak and others. 00007 // 00008 // This library is free software; you can redistribute it and/or 00009 // modify it under the terms of the GNU Library General Public 00010 // License as published by the Free Software Foundation; either 00011 // version 2 of the License, or (at your option) any later version. 00012 // 00013 // This library is distributed in the hope that it will be useful, 00014 // but WITHOUT ANY WARRANTY; without even the implied warranty of 00015 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00016 // Library General Public License for more details. 00017 // 00018 // You should have received a copy of the GNU Library General Public 00019 // License along with this library; if not, write to the Free Software 00020 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 00021 // USA. 00022 // 00023 // Please report all bugs and problems on the following page: 00024 // 00025 // http://www.fltk.org/str.php 00026 // 00027 00028 /* \file 00029 Fl_Cairo_Window Handling transparently a fltk window incorporte a cairo draw callback. 00030 */ 00031 00032 #ifndef FL_CAIRO_WINDOW_H 00033 # define FL_CAIRO_WINDOW_H 00034 # ifdef FLTK_HAVE_CAIRO 00035 00036 // Cairo is currently supported for the following platforms: 00037 // Win32, Apple Quartz, X11 00038 # include <FL/Fl.H> 00039 # include <FL/Fl_Double_Window.H> 00040 00057 class FL_EXPORT Fl_Cairo_Window : public Fl_Double_Window { 00058 00059 public: 00060 Fl_Cairo_Window(int w, int h) : Fl_Double_Window(w,h),draw_cb_(0) {} 00061 00062 protected: 00064 void draw() { 00065 Fl_Double_Window::draw(); 00066 // manual method ? if yes explicitly get a cairo_context here 00067 if (!Fl::cairo_autolink_context()) 00068 Fl::cairo_make_current(this); 00069 if (draw_cb_) draw_cb_(this, Fl::cairo_cc()); 00070 } 00071 00072 public: 00074 typedef void (*cairo_draw_cb) (Fl_Cairo_Window* self, cairo_t* def); 00079 void set_draw_cb(cairo_draw_cb cb){draw_cb_=cb;} 00080 private: 00081 cairo_draw_cb draw_cb_; 00082 }; 00083 00084 00087 # endif // FLTK_HAVE_CAIRO 00088 #endif // FL_CAIRO_WINDOW_H 00089 00090 // 00091 // End of "$Id$" . 00092 //