Include a stripped-down version of FLTK in tree and add a USE_INCLUDED_FLTK option to build against it.
git-svn-id: svn://svn.code.sf.net/p/tigervnc/code/trunk@4603 3789f03b-4d11-0410-bbf8-ca57d06f2519
diff --git a/common/fltk/FL/Fl_Cairo_Window.H b/common/fltk/FL/Fl_Cairo_Window.H
new file mode 100644
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+++ b/common/fltk/FL/Fl_Cairo_Window.H
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+//
+// "$Id: Fl_Cairo_Window.H 8198 2011-01-06 10:24:58Z manolo $"
+//
+// Main header file for the Fast Light Tool Kit (FLTK).
+//
+// Copyright 1998-2010 by Bill Spitzak and others.
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Library General Public
+// License as published by the Free Software Foundation; either
+// version 2 of the License, or (at your option) any later version.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+// Library General Public License for more details.
+//
+// You should have received a copy of the GNU Library General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+// USA.
+//
+// Please report all bugs and problems on the following page:
+//
+// http://www.fltk.org/str.php
+//
+
+/* \file
+ Fl_Cairo_Window Handling transparently a fltk window incorporte a cairo draw callback.
+*/
+
+#ifndef FL_CAIRO_WINDOW_H
+# define FL_CAIRO_WINDOW_H
+# ifdef FLTK_HAVE_CAIRO
+
+// Cairo is currently supported for the following platforms:
+// Win32, Apple Quartz, X11
+# include <FL/Fl.H>
+# include <FL/Fl_Double_Window.H>
+
+/**
+ \addtogroup group_cairo
+ @{
+*/
+
+/**
+ This defines a pre-configured cairo fltk window.
+ This class overloads the virtual draw() method for you,
+ so that the only thing you have to do is to provide your cairo code.
+ All cairo context handling is achieved transparently.
+ \note You can alternatively define your custom cairo fltk window,
+ and thus at least override the draw() method to provide custom cairo
+ support. In this case you will probably use Fl::cairo_make_current(Fl_Window*)
+ to attach a context to your window. You should do it only when your window is
+ the current window. \see Fl_Window::current()
+*/
+class FL_EXPORT Fl_Cairo_Window : public Fl_Double_Window {
+
+public:
+ Fl_Cairo_Window(int w, int h) : Fl_Double_Window(w,h),draw_cb_(0) {}
+
+protected:
+ /** Overloaded to provide cairo callback support */
+ void draw() {
+ Fl_Double_Window::draw();
+ // manual method ? if yes explicitly get a cairo_context here
+ if (!Fl::cairo_autolink_context())
+ Fl::cairo_make_current(this);
+ if (draw_cb_) draw_cb_(this, Fl::cairo_cc());
+ }
+
+public:
+ /** This defines the cairo draw callback prototype that you must further */
+ typedef void (*cairo_draw_cb) (Fl_Cairo_Window* self, cairo_t* def);
+ /**
+ You must provide a draw callback which will implement your cairo rendering.
+ This method will permit you to set your cairo callback to \p cb.
+ */
+ void set_draw_cb(cairo_draw_cb cb){draw_cb_=cb;}
+private:
+ cairo_draw_cb draw_cb_;
+};
+
+
+/** @} */
+
+# endif // FLTK_HAVE_CAIRO
+#endif // FL_CAIRO_WINDOW_H
+
+//
+// End of "$Id: Fl_Cairo_Window.H 8198 2011-01-06 10:24:58Z manolo $" .
+//