text: /*********************************************************************************
   *
   * Inviwo - Interactive Visualization Workshop
   *
   * Copyright (c) 2016-2017 Inviwo Foundation
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions are met:
   *
   * 1. Redistributions of source code must retain the above copyright notice, this
   * list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright notice,
   * this list of conditions and the following disclaimer in the documentation
   * and/or other materials provided with the distribution.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
   * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
   * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
   * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
   * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
   * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
   * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
   * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
   * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   *
   *********************************************************************************/
  
  #ifndef IVW_ANIMATIONVIEWQT_H
  #define IVW_ANIMATIONVIEWQT_H
  
  #include <modules/animationqt/animationqtmoduledefine.h>
  #include <modules/animation/datastructures/animationtime.h>
  #include <modules/animation/animationcontrollerobserver.h>
  #include <inviwo/core/common/inviwo.h>
  
  #include <warn/push>
  #include <warn/ignore/all>
  #include <QGraphicsView>
  #include <warn/pop>
  
  namespace inviwo {
  
  namespace animation {
  
  class AnimationController;
  
  /**
   * \class AnimationViewQt
   * \brief VERY_BRIEFLY_DESCRIBE_THE_CLASS
   * DESCRIBE_THE_CLASS
   */
  
  class IVW_MODULE_ANIMATIONQT_API AnimationViewQt : public QGraphicsView,
                                                     public AnimationControllerObserver {
  public:
      AnimationViewQt(AnimationController& controller);
      virtual ~AnimationViewQt() = default;
  
  protected:
      virtual void mousePressEvent(QMouseEvent* e) override;
      virtual void mouseMoveEvent(QMouseEvent* e) override;
      virtual void mouseReleaseEvent(QMouseEvent* e) override;
      virtual void wheelEvent(QWheelEvent* e) override;
  
      void setTimelinePos(int x);
      void zoom(double dz);
      virtual void drawBackground(QPainter* painter, const QRectF& rect) override;
      virtual void drawForeground(QPainter* painter, const QRectF& rect) override;
  
      // virtual void setupViewport(QWidget* widget) override;
  
      virtual void onStateChanged(AnimationController* controller, AnimationState oldState,
                                  AnimationState newState) override;
      virtual void onTimeChanged(AnimationController* controller, Seconds oldTime,
                                 Seconds newTime) override;
  
      AnimationController& controller_;
      bool pressingOnTimeline_ = false;
  };
  
  }  // namespace
  
  }  // namespace
  
  #endif  // IVW_ANIMATIONVIEWQT_H
  