VariablePillContainer.hh

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/*
 * Copyright (C) 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_PLOT_VARIABLE_PILL_CONTAINER_HH_
#define GAZEBO_GUI_PLOT_VARIABLE_PILL_CONTAINER_HH_

#include <memory>
#include <string>

#include "gazebo/gui/qt.h"
#include "gazebo/gui/plot/VariablePill.hh"
#include "gazebo/util/system.hh"

namespace gazebo
{
  namespace gui
  {
    // Forward declare private data class
    class VariablePillContainerPrivate;

    class VariablePill;

    class GZ_GUI_VISIBLE VariablePillContainer : public QWidget
    {
      Q_OBJECT

      public: VariablePillContainer(QWidget *_parent = nullptr);

      public: virtual ~VariablePillContainer();

      public: void SetText(const std::string &_text);

      public: std::string Text() const;

      public: void SetMaxSize(const int _max);

      public: int MaxSize() const;

      public: void SetVariablePillLabel(const unsigned int _id,
          const std::string &_text);

      public: unsigned int AddVariablePill(const std::string &_name,
          const unsigned int _targetId = VariablePill::EmptyVariable);

      public: void AddVariablePill(VariablePill *_variable,
          const unsigned int _targetId = VariablePill::EmptyVariable);

      public: void RemoveVariablePill(VariablePill *_variable);

      public: void RemoveVariablePill(const unsigned int _id);

      public: unsigned int VariablePillCount() const;

      public: VariablePill *GetVariablePill(const unsigned int _id) const;

      public: void SetSelected(VariablePill *_variable);

      protected: void dragEnterEvent(QDragEnterEvent *_evt);

      protected: void dropEvent(QDropEvent *_evt);

      protected: virtual void keyPressEvent(QKeyEvent *_event);

      protected: void mouseReleaseEvent(QMouseEvent *_event);

      private: bool IsDragValid(QDropEvent *_evt) const;

      Q_SIGNALS: void VariableAdded(const unsigned int _id,
          const std::string &_name, const unsigned int _targetId);

      Q_SIGNALS: void VariableRemoved(const unsigned int _id,
          const unsigned int _targetId);

      Q_SIGNALS: void VariableMoved(const unsigned int _id,
          const unsigned int _targetId);

      Q_SIGNALS: void VariableLabelChanged(const unsigned int _id,
          const std::string &_label);

      private slots: void OnAddVariable(const unsigned int _id,
          const std::string &_label);

      private slots: void OnRemoveVariable(const unsigned int _id);

      private slots: void OnMoveVariable(const unsigned int _id);

      private slots: void OnSetVariableLabel(const std::string &_label);

      private: std::unique_ptr<VariablePillContainerPrivate> dataPtr;
    };
  }
}
#endif