Fl_Overlay_Window.H

//
// Overlay window 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:
//
//     https://www.fltk.org/COPYING.php
//
// Please see the following page on how to report bugs and issues:
//
//     https://www.fltk.org/bugs.php
//

/* \file
   Fl_Overlay_Window class . */

#ifndef Fl_Overlay_Window_H
#define Fl_Overlay_Window_H

#include "Fl_Double_Window.H"

class FL_EXPORT Fl_Overlay_Window : public Fl_Double_Window {
#ifndef FL_DOXYGEN
  friend class _Fl_Overlay;
  friend class Fl_Window_Driver;
#endif
public:
  virtual void draw_overlay() = 0;
private:
  Fl_Window *overlay_;
public:
  void show();
  void hide();
  void flush();
  void resize(int,int,int,int);
  ~Fl_Overlay_Window();
  int can_do_overlay();
  void redraw_overlay();
protected:
  Fl_Overlay_Window(int W, int H, const char *l=0);
  Fl_Overlay_Window(int X, int Y, int W, int H, const char *l=0);
public:
  void show(int a, char **b) {Fl_Double_Window::show(a,b);}
  virtual Fl_Overlay_Window *as_overlay_window() {return this; }
};

#endif