text: /*********************************************************************************
   *
   * Inviwo - Interactive Visualization Workshop
   *
   * Copyright (c) 2013-2020 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.
   *
   *********************************************************************************/
  
  #pragma once
  
  #include <modules/openglqt/openglqtmoduledefine.h>
  #include <inviwo/core/processors/canvasprocessorwidget.h>
  #include <inviwo/core/processors/processorobserver.h>
  #include <modules/openglqt/canvasqt.h>
  
  #include <warn/push>
  #include <warn/ignore/all>
  #include <QWidget>
  #include <warn/pop>
  
  namespace inviwo {
  
  class CanvasProcessor;
  
  class IVW_MODULE_OPENGLQT_API CanvasProcessorWidgetQt : public QWidget,
                                                          public CanvasProcessorWidget,
                                                          public ProcessorObserver {
  
  #include <warn/push>
  #include <warn/ignore/all>
      Q_OBJECT
  #include <warn/pop>
  public:
      CanvasProcessorWidgetQt(Processor* p);
      virtual ~CanvasProcessorWidgetQt();
  
      // Override ProcessorWidget
      virtual void setVisible(bool visible) override;
      virtual void show() override;
      virtual void hide() override;
      virtual void setPosition(ivec2 pos) override;
      virtual void setDimensions(ivec2 dimensions) override;
  
      virtual Canvas* getCanvas() const override;
  
      // Override ProcessorObserver
      virtual void onProcessorDisplayNameChanged(Processor*, const std::string&) override;
  
  protected:
      virtual void updateVisible(bool visible) override;
      virtual void updateDimensions(ivec2) override;
      virtual void updatePosition(ivec2) override;
  
      // Override QWidget events
      virtual void resizeEvent(QResizeEvent*) override;
      virtual void closeEvent(QCloseEvent*) override;
      virtual void showEvent(QShowEvent*) override;
      virtual void hideEvent(QHideEvent*) override;
      virtual void moveEvent(QMoveEvent*) override;
  
  private:
      using canvas_ptr = std::unique_ptr<CanvasQt, std::function<void(CanvasQt*)>>;
      canvas_ptr canvas_;
  
      bool ignoreEvents_{false};
      bool ignoreUpdate_{false};
  };
  
  }  // namespace inviwo
  