widget_geometry_change_detector.h

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/*
 * Copyright (c) 2011, Willow Garage, Inc.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * 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.
 *     * Neither the name of the Willow Garage, Inc. nor the names of its
 *       contributors may be used to endorse or promote products derived from
 *       this software without specific prior written permission.
 *
 * 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
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 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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 */
#ifndef WIDGET_GEOMETRY_CHANGE_DETECTOR_H
#define WIDGET_GEOMETRY_CHANGE_DETECTOR_H
 
#include <QObject>
 
namespace rviz
{
class WidgetGeometryChangeDetector : public QObject
{
  Q_OBJECT
public:
  WidgetGeometryChangeDetector(QObject* parent = nullptr);
 
  bool eventFilter(QObject* watched, QEvent* event) override;
 
Q_SIGNALS:
  void changed();
};
 
} // end namespace rviz
 
#endif // WIDGET_GEOMETRY_CHANGE_DETECTOR_H