/**********************************************************************************************
    Copyright (C) 2014 Oliver Eichler <oliver.eichler@gmx.de>
    Copyright (C) 2018 Norbert Truchsess <norbert.truchsess@t-online.de>

    This program is free software: you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    This program 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 General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.

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

#ifndef IMOUSE_H
#define IMOUSE_H

#include <QObject>
#include <QPoint>

#include "canvas/CCanvas.h"

class CGisDraw;
class QPainter;
class CMouseAdapter;

class IMouse : public QObject {
  Q_OBJECT
 public:
  explicit IMouse(CGisDraw* gis, CCanvas* canvas, CMouseAdapter* mouse);
  virtual ~IMouse();

  virtual void leftClicked(const QPoint& pos) {}
  virtual void longPress(const QPoint& pos) {}
  virtual void mouseMoved(const QPoint& pos) {}
  virtual void mouseDragged(const QPoint& start, const QPoint& last, const QPoint& end);
  virtual void leftButtonDown(const QPoint& pos) {}
  virtual void rightButtonDown(const QPoint& pos);
  virtual void doubleClicked(const QPoint& pos) {}
  virtual void dragFinished(const QPoint& pos) {}
  virtual void scaleChanged() {}
  virtual void abortStep() {}
  virtual void unfocus() {}

  virtual void draw(QPainter& p, CCanvas::redraw_e needsRedraw, const QRect& rect) = 0;

 protected:
  CCanvas* canvas;
  CGisDraw* gis;
  CMouseAdapter* mouse;

 public:
  /// the current mouse cursor
  /**
      Each mouse function is represented by a special cursor. The main
      widget uses this method to query the current cursor.
   */
  operator const QCursor&() const { return cursor; }

  CCanvas* getCanvas() const { return canvas; }

  void startMouseMove(const QPoint& pos);

 protected:
  /// the functions mouse icon
  QCursor cursor;
};

#endif  // IMOUSE_H
