/****************************************************************************

 Copyright (C) 2002-2008 Gilles Debunne. All rights reserved.

 This file is part of the QGLViewer library version 2.3.1.

 http://www.libqglviewer.com - contact@libqglviewer.com

 This file may be used under the terms of the GNU General Public License 
 versions 2.0 or 3.0 as published by the Free Software Foundation and
 appearing in the LICENSE file included in the packaging of this file.
 In addition, as a special exception, Gilles Debunne gives you certain 
 additional rights, described in the file GPL_EXCEPTION in this package.

 libQGLViewer uses dual licensing. Commercial/proprietary software must
 purchase a libQGLViewer Commercial License.

 This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
 WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.

*****************************************************************************/

#ifndef DVONNVIEWER_H
#define DVONNVIEWER_H

#include "game.h"

#include <QGLViewer/qglviewer.h>
#include <list>

class QTimer;

namespace dvonn
{
  class Game;
  class Drawer;
}

//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
// Interface of DvonnViewer
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
class DvonnViewer : public QGLViewer
{
  Q_OBJECT

public:
#if QT_VERSION < 0x040000
  DvonnViewer(QWidget* parent=NULL, const char* name=0);
#else
  DvonnViewer(QWidget* parent=NULL);
#endif
  ~DvonnViewer();
  void setGame(dvonn::Game* g);
  void fadeOut(const dvonn::Board::Ghosts* g);
  void animateMove(dvonn::Game::Move m);
  void stopAllAnimations();
signals:
  void requested(dvonn::Game::Placement);
  void requested(dvonn::Game::Move);
public slots:
  void toggleTexture(bool);
  void toggleLight(bool);
  void toggleShowPossible(bool);
  void toggleShowStatus(bool);
  void toggleShowLabels(bool);
  void toggleShowAnimation(bool);
  void toggleDragToPlay(bool);
  void animateScore();
protected slots:
  void advanceFadeOut();
  void advanceAnimateMove();
  void advanceAnimateScore();
protected:
  virtual void init();
  void initOpenGL();
  void initSpotLight();
  void initViewer();
  virtual void draw();
  void drawAllPieces(bool pick = false);
  void drawAllSpaces(bool pick = false);
  virtual void drawWithNames();
  virtual void postSelection(const QPoint& point);
  virtual QString helpString() const;

  virtual void keyPressEvent(QKeyEvent* e);
  virtual void mousePressEvent(QMouseEvent* e);
  virtual void mouseMoveEvent(QMouseEvent* e);
  virtual void mouseReleaseEvent(QMouseEvent* e);
  void commitDstPicked();

private:
  dvonn::Game*                               game_;
  dvonn::Drawer*                             drawer_;

  int                                        selectionMode_;
  bool                                       piecePicked_;
  dvonn::Board::ConstStackHandle             dstPicked_;
  dvonn::Board::ConstStackHandle             srcPicked_;
  bool                                       showPossDest_;
  bool                                       showStatus_;
  bool                                       showLabels_;
  bool                                       useLight_;
  std::deque<dvonn::Board::ConstStackHandle> possDests_;
  bool                                       dragToPlay_;
  const dvonn::Board::Ghosts*                fadeGhosts_;
  QTimer*                                    fadeTimer_;
  float                                      fadeAlpha_;
  QTimer*                                    animateTimer_;
  float                                      animateT_;
  dvonn::Game::Move                          animateMove_;
  bool                                       showAnimation_;
  QTimer*                                    scoreTimer_;
  float                                      scoreT_;
  dvonn::Game::Move                          scoreMove_;
};
#endif // DVONNVIEWER_H