.. _program_listing_file__tmp_ws_src_mapviz_mapviz_include_mapviz_select_topic_dialog.h:

Program Listing for File select_topic_dialog.h
==============================================

|exhale_lsh| :ref:`Return to documentation for file <file__tmp_ws_src_mapviz_mapviz_include_mapviz_select_topic_dialog.h>` (``/tmp/ws/src/mapviz/mapviz/include/mapviz/select_topic_dialog.h``)

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

.. code-block:: cpp

   // *****************************************************************************
   //
   // Copyright (c) 2014, Southwest Research Institute® (SwRI®)
   // 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 Southwest Research Institute® (SwRI®) 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 <COPYRIGHT HOLDER> 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 MAPVIZ__SELECT_TOPIC_DIALOG_H_
   #define MAPVIZ__SELECT_TOPIC_DIALOG_H_
   
   #include <rclcpp/rclcpp.hpp>
   
   #include <QDialog>
   
   #include <map>
   #include <memory>
   #include <set>
   #include <string>
   #include <vector>
   
   QT_BEGIN_NAMESPACE
   class QLineEdit;
   class QListWidget;
   class QPushButton;
   QT_END_NAMESPACE
   
   namespace mapviz
   {
   class SelectTopicDialog : public QDialog
   {
     Q_OBJECT;
   
    public:
     static std::string selectTopic(
       const rclcpp::Node::SharedPtr& node,
       const std::string &datatype,
       QWidget *parent = nullptr);
   
     static std::string selectTopic(
       const rclcpp::Node::SharedPtr& node,
       const std::string &datatype1,
       const std::string &datatype2,
       QWidget *parent = nullptr);
   
     static std::string selectTopic(
       const rclcpp::Node::SharedPtr& node,
       const std::vector<std::string> &datatypes,
       QWidget *parent = nullptr);
   
     static std::vector<std::string> selectTopics(
       const rclcpp::Node::SharedPtr& node,
       const std::string &datatype,
       QWidget *parent = nullptr);
   
     static std::vector<std::string> selectTopics(
       const rclcpp::Node::SharedPtr& node,
       const std::string &datatype1,
       const std::string &datatype2,
       QWidget *parent = nullptr);
   
     static std::vector<std::string> selectTopics(
       const rclcpp::Node::SharedPtr& node,
       const std::vector<std::string> &datatypes,
       QWidget *parent = nullptr);
   
     explicit SelectTopicDialog(const rclcpp::Node::SharedPtr& node,
         QWidget *parent = nullptr);
   
     void allowMultipleTopics(bool allow);
   
     void setDatatypeFilter(const std::vector<std::string> &datatypes);
   
     std::string selectedTopic() const;
     std::vector<std::string> selectedTopics() const;
   
    private:
     void timerEvent(QTimerEvent *) override;
     void closeEvent(QCloseEvent *) override;
   
     std::vector<std::string> filterTopics(
       const std::map<std::string, std::vector<std::string>> &) const;
   
    private Q_SLOTS:
     void fetchTopics();
     void updateDisplayedTopics();
   
    private:
     std::set<std::string> allowed_datatypes_;
     std::map<std::string, std::vector<std::string>> known_topics_;
   
     std::vector<std::string> displayed_topics_;
     int fetch_topics_timer_id_;
   
     std::shared_ptr<rclcpp::Node> nh_;   // This may need to be a shared instance of Mapviz's node
   
     QPushButton *ok_button_;
     QPushButton *cancel_button_;
     QListWidget *list_widget_;
     QLineEdit *name_filter_;
   };  // class SelectTopicDialog
   }  // namespace mapviz
   
   #endif  // MAPVIZ__SELECT_TOPIC_DIALOG_H_