GrabberHandle.hh

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/*
 * Copyright (C) 2012-2016 Open Source Robotics Foundation
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
*/

#ifndef _GAZEBO_GUI_GRABBER_HANDLE_HH_
#define _GAZEBO_GUI_GRABBER_HANDLE_HH_

#include <vector>
#include <memory>

#include <ignition/math/Vector2.hh>

#include "gazebo/gui/qt.h"

#include "gazebo/util/system.hh"

namespace gazebo
{
  namespace common
  {
    class Color;
  }

  namespace gui
  {
    // Forward declare private data class.
    class GrabberHandlePrivate;

    class GZ_GUI_VISIBLE GrabberHandle : public QGraphicsItem
    {
      public: GrabberHandle(QGraphicsItem *_parent = 0, int index = 0);

      public: virtual ~GrabberHandle();

      public: int Index() const;

      public: int MouseState() const;

      public: ignition::math::Vector2d CenterPoint() const;

      public: double MouseDownX() const;

      public: double MouseDownY() const;
      public: double Width() const;

      public: double Height() const;

      public: common::Color Color() const;

      public: void SetMouseState(int _state);

      public: void SetMouseDownX(double _x);

      public: void SetMouseDownY(double _y);

      public: void SetWidth(double _width);

      public: void SetHeight(double _height);

      public: void SetColor(const common::Color &_color);

      public: void SetBorderColor(const common::Color &_borderColor);

      public: virtual QRectF boundingRect() const;

      public: std::vector<GrabberHandle *> LinkedGrabbers() const;

      public: void PushLinkedGrabber(GrabberHandle *_grabber);

      public: void EraseLinkedGrabber(GrabberHandle *_grabber);

      private: virtual void paint(QPainter *_painter,
        const QStyleOptionGraphicsItem *_option, QWidget *_widget);

      protected: void hoverEnterEvent(QGraphicsSceneHoverEvent *_event);

      protected: void hoverLeaveEvent(QGraphicsSceneHoverEvent *_event);

      protected: void mouseMoveEvent(QGraphicsSceneMouseEvent *_event);

      protected: void mousePressEvent(QGraphicsSceneMouseEvent *_event);

      protected: void mouseReleaseEvent(QGraphicsSceneMouseEvent *_event);

      protected: void mousePressEvent(QGraphicsSceneDragDropEvent *_event);

      protected: void mouseMoveEvent(QGraphicsSceneDragDropEvent *_event);

      private: std::unique_ptr<GrabberHandlePrivate> dataPtr;
    };
  }
}

#endif