.. _program_listing_file__tmp_ws_src_rqt_image_view_include_rqt_image_view_image_view.h:

Program Listing for File image_view.h
=====================================

|exhale_lsh| :ref:`Return to documentation for file <file__tmp_ws_src_rqt_image_view_include_rqt_image_view_image_view.h>` (``/tmp/ws/src/rqt_image_view/include/rqt_image_view/image_view.h``)

.. |exhale_lsh| unicode:: U+021B0 .. UPWARDS ARROW WITH TIP LEFTWARDS

.. code-block:: cpp

   /*
    * 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