text: /*********************************************************************************
   *
   * Inviwo - Interactive Visualization Workshop
   *
   * Copyright (c) 2014-2021 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.
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   *********************************************************************************/
  
  #pragma once
  
  #include <modules/qtwidgets/qtwidgetsmoduledefine.h>
  #include <warn/push>
  #include <warn/ignore/all>
  #include <QWidget>
  #include <warn/pop>
  
  namespace inviwo {
  /** \class AngleRadiusWidget
   * The AngleRadiusWidget provides an interface to edit an angle in [0 2pi)
   * as well as a radius within given bounds [minRadius maxRadius].
   *
   * @see AnglePropertyWidgetQt
   */
  class IVW_MODULE_QTWIDGETS_API AngleRadiusWidget : public QWidget {
  #include <warn/push>
  #include <warn/ignore/all>
      Q_OBJECT
  #include <warn/pop>
  public:
      AngleRadiusWidget(QWidget*);
      virtual ~AngleRadiusWidget(){};
  
      virtual void paintEvent(QPaintEvent*) override;
  
      virtual void mousePressEvent(QMouseEvent* e) override;
      virtual void mouseMoveEvent(QMouseEvent* e) override;
  
      void setAngle(double angle);
      double getAngle() const { return angle_; }
      void setRadius(double radius);
      double getRadius() const { return radius_; }
  
      void setMinMaxAngle(double minAngle, double maxAngle);
      void setMinMaxRadius(double minRadius, double maxRadius);
  
      void setMinAngle(double angle);
      double getMinAngle() const { return minAngle_; }
      void setMaxAngle(double angle);
      double getMaxAngle() const { return maxAngle_; }
  
      void setMinRadius(double radius);
      double getMinRadius() const { return minRadius_; }
      void setMaxRadius(double radius);
      double getMaxRadius() const { return maxRadius_; }
  
      QSize sizeHint() const override;
      QSize minimumSizeHint() const override;
  signals:
      void angleChanged();
      void radiusChanged();
      void angleMinMaxChanged();
      void radiusMinMaxChanged();
  
  private:
      /**
       * @brief Outer bounds of circle.
       * @return int Radius in pixes
       */
      int getMaxPixelSpaceRadius() const;
      /**
       * Calculates and sets the angle and radius from the center
       * of the widget to the position.
       * @param pos given in pixels
       */
      void setAngleRadiusAtPosition(const QPoint& pos);
  
      double angle_;
      double radius_;
      double minAngle_;
      double maxAngle_;
      double minRadius_;
      double maxRadius_;
  };
  
  }  // namespace inviwo
  