Fl_Cairo.H
//
// "$Id: Fl_Cairo.H 8864 2011-07-19 04:49:30Z greg.ercolano $"
//
// Main header file for the Fast Light Tool Kit (FLTK).
//
// Copyright 1998-2010 by Bill Spitzak and others.
//
// This library is free software. Distribution and use rights are outlined in
// the file "COPYING" which should have been included with this file. If this
// file is missing or damaged, see the license at:
//
// http://www.fltk.org/COPYING.php
//
// Please report all bugs and problems on the following page:
//
// http://www.fltk.org/str.php
//
/* \file
Handling transparently platform dependent cairo include files
*/
#ifndef FL_CAIRO_H
# define FL_CAIRO_H
# ifdef FLTK_HAVE_CAIRO
// Cairo is currently supported for the following platforms:
// Win32, Apple Quartz, X11
# include <FL/Fl_Export.H>
# if defined(USE_X11) // X11
# include <cairo-xlib.h>
# elif defined(WIN32)
# include <cairo-win32.h>
# elif defined(__APPLE_QUARTZ__)
# include <cairo-quartz.h>
# else
# error Cairo is not supported on that platform.
# endif
class FL_EXPORT Fl_Cairo_State {
public:
Fl_Cairo_State() : cc_(0), own_cc_(false), autolink_(false), window_(0), gc_(0) {}
// access attributes
cairo_t* cc() const {return cc_;}
bool autolink() const {return autolink_;}
void cc(cairo_t* c, bool own=true) {
if (cc_ && own_cc_) cairo_destroy(cc_);
cc_=c;
if (!cc_) window_=0;
own_cc_=own;
}
void autolink(bool b);
void window(void* w) {window_=w;}
void* window() const {return window_;}
void gc(void* c) {gc_=c;}
void* gc() const {return gc_;}
private:
cairo_t * cc_; // contains the unique autoupdated cairo context
bool own_cc_; // indicates whether we must delete the cc, useful for internal cleanup
bool autolink_; // true by default, permits to prevent the automatic cairo mapping on fltk windows for custom cairo implementations
void* window_, *gc_; // for keeping track internally of last win+gc treated
};
# endif // FLTK_HAVE_CAIRO
#endif // FL_CAIRO_H
//
// End of "$Id: Fl_Cairo.H 8864 2011-07-19 04:49:30Z greg.ercolano $" .
//
- © 1998-2012 by Bill Spitzak and others.