Program Listing for File image_view.h

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/*
 * Copyright (c) 2011, Dirk Thomas, TU Darmstadt
 * 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 TU Darmstadt 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 HOLDER 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.
 */

#ifndef rqt_image_view__ImageView_H
#define rqt_image_view__ImageView_H

#include <rqt_gui_cpp/plugin.h>

#include <ui_image_view.h>

#include <image_transport/image_transport.hpp>
#include <image_transport/subscriber.hpp>

#include <sensor_msgs/msg/image.hpp>
#include <geometry_msgs/msg/point.hpp>

#include <opencv2/core/core.hpp>

#include <QAction>
#include <QImage>
#include <QList>
#include <QString>
#include <QSet>
#include <QSize>
#include <QWidget>

#include <vector>

namespace rqt_image_view {

class ImageView
  : public rqt_gui_cpp::Plugin
{

  Q_OBJECT

public:

  ImageView();

  virtual void initPlugin(qt_gui_cpp::PluginContext& context);

  virtual void shutdownPlugin();

  virtual void saveSettings(qt_gui_cpp::Settings& plugin_settings, qt_gui_cpp::Settings& instance_settings) const;

  virtual void restoreSettings(const qt_gui_cpp::Settings& plugin_settings, const qt_gui_cpp::Settings& instance_settings);

protected slots:

  virtual void updateTopicList();

protected:

  virtual QSet<QString> getTopics(const QSet<QString>& message_types, const QSet<QString>& message_sub_types, const QList<QString>& transports);

  virtual void selectTopic(const QString& topic);

protected slots:

  virtual void onTopicChanged(int index);

  virtual void onZoom1(bool checked);

  virtual void onDynamicRange(bool checked);

  virtual void saveImage();

  virtual void updateNumGridlines();

  virtual void onMousePublish(bool checked);

  virtual void onMouseLeft(int x, int y);

  virtual void onPubTopicChanged();

  virtual void onHideToolbarChanged(bool hide);

  virtual void onRotateLeft();
  virtual void onRotateRight();

protected:

  virtual void callbackImage(const sensor_msgs::msg::Image::ConstSharedPtr& msg);

  virtual void invertPixels(int x, int y);

  QList<int> getGridIndices(int size) const;

  virtual void overlayGrid();

  Ui::ImageViewWidget ui_;

  QWidget* widget_;

  image_transport::Subscriber subscriber_;

  cv::Mat conversion_mat_;

private:

  enum RotateState {
    ROTATE_0 = 0,
    ROTATE_90 = 1,
    ROTATE_180 = 2,
    ROTATE_270 = 3,

    ROTATE_STATE_COUNT
  };

  void syncRotateLabel();

  QString arg_topic_name;

  rclcpp::Publisher<geometry_msgs::msg::Point>::SharedPtr pub_mouse_left_;

  bool pub_topic_custom_;

  QAction* hide_toolbar_action_;

  int num_gridlines_;

  RotateState rotate_state_;
};

}

#endif // rqt_image_view__ImageView_H