FLTK 1.3.0
Fl_Cairo_Window.H
1 //
2 // "$Id: Fl_Cairo_Window.H 8198 2011-01-06 10:24:58Z manolo $"
3 //
4 // Main header file for the Fast Light Tool Kit (FLTK).
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6 // Copyright 1998-2010 by Bill Spitzak and others.
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27 
28 /* \file
29  Fl_Cairo_Window Handling transparently a fltk window incorporte a cairo draw callback.
30 */
31 
32 #ifndef FL_CAIRO_WINDOW_H
33 # define FL_CAIRO_WINDOW_H
34 # ifdef FLTK_HAVE_CAIRO
35 
36 // Cairo is currently supported for the following platforms:
37 // Win32, Apple Quartz, X11
38 # include <FL/Fl.H>
39 # include <FL/Fl_Double_Window.H>
40 
57 class FL_EXPORT Fl_Cairo_Window : public Fl_Double_Window {
58 
59 public:
60  Fl_Cairo_Window(int w, int h) : Fl_Double_Window(w,h),draw_cb_(0) {}
61 
62 protected:
64  void draw() {
66  // manual method ? if yes explicitly get a cairo_context here
68  Fl::cairo_make_current(this);
69  if (draw_cb_) draw_cb_(this, Fl::cairo_cc());
70  }
71 
72 public:
74  typedef void (*cairo_draw_cb) (Fl_Cairo_Window* self, cairo_t* def);
79  void set_draw_cb(cairo_draw_cb cb){draw_cb_=cb;}
80 private:
81  cairo_draw_cb draw_cb_;
82 };
83 
84 
87 # endif // FLTK_HAVE_CAIRO
88 #endif // FL_CAIRO_WINDOW_H
89 
90 //
91 // End of "$Id: Fl_Cairo_Window.H 8198 2011-01-06 10:24:58Z manolo $" .
92 //