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//
// "$Id$"
//
// A base class for platform specific window handling code
// for the Fast Light Tool Kit (FLTK).
//
// Copyright 2010-2016 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 Fl_Window_Driver.H
 \brief declaration of classe Fl_Window_Driver.
*/

#ifndef FL_WINDOW_DRIVER_H
#define FL_WINDOW_DRIVER_H

#include <FL/x.H>


class Fl_Window;
class Fl_X;
class Fl_Image;
class Fl_Shared_Image;

/**
 \brief A base class for platform specific window handling code.
  */
class FL_EXPORT Fl_Window_Driver {
  friend class Fl_Window;
  friend class Fl_X;
protected:
  Fl_Window *pWindow;
  struct icon_data;
  icon_data *icon_;
  struct shape_data_type;
  shape_data_type *shape_data_; ///< non-null means the window has a non-rectangular shape
public:
  Fl_Window_Driver(Fl_Window *);
  virtual ~Fl_Window_Driver();
  static Fl_Window_Driver *newWindowDriver(Fl_Window *);

  virtual Fl_X *makeWindow() { /* FIXME: move Fl_X::make(Fl_Window*) here for OSX, MSWin, and X11 */ return 0; }
  virtual void flush() { /* FIXME: move Fl_X::flush() here for OSX, MSWin, and X11 */ }

  virtual void take_focus() { }
  virtual int double_flush(int eraseoverlay);
  virtual void destroy_double_buffer();
  virtual void draw();
  void shape_pixmap_(Fl_Image* pixmap);
  virtual void shape(const Fl_Image* img) {}
  virtual void shape_alpha_(Fl_Image* img, int offset) {}
  virtual void icons(const Fl_RGB_Image *icons[], int count) {}
  virtual const void *icon() const {return NULL;}
  virtual void icon(const void * ic) {}
  virtual void free_icons() {}
  virtual void capture_titlebar_and_borders(Fl_Shared_Image*& top, Fl_Shared_Image*& left, Fl_Shared_Image*& bottom, Fl_Shared_Image*& right);
  virtual void wait_for_expose() {}
};


#endif // FL_WINDOW_DRIVER_H

//
// End of "$Id$".
//