Added an about dialog with version info

source/mainwindow.cpp

@@ -1,6 +1,8 @@
 #include "mainwindow.h"
 #include "ui_mainwindow.h"
 
+#include "version.h"
+
 #include <QJsonObject>
 #include <QJsonDocument>
 #include <QFile>
@@ -58,6 +60,8 @@ void MainWindow::setupUi()
 	connect(ui->actionPrint, &QAction::triggered, this, &MainWindow::print);
 	connect(ui->actionExport_PDF, &QAction::triggered, this, qOverload<>(&MainWindow::savePdf));
 
+	connect(ui->actionAbout, &QAction::triggered, this, &MainWindow::aboutDialog);
+
 	connect(&m_dataModel, &DataModel::modelChanged, this, &MainWindow::dataModelChanged);
 }
 
@@ -235,3 +239,10 @@ void MainWindow::savePdf(const QString &filename)
 
 	printDoc.print(&printer);
 }
+
+void MainWindow::aboutDialog()
+{
+	QString infoString =
+	    QString::fromUtf8(ESGRAF48_DESCRIPTION) + " Version " + QString::fromUtf8(ESGRAF48_VERSION);
+	QMessageBox::information(this, ESGRAF48_DESCRIPTION, infoString);
+}

source/mainwindow.h

@@ -38,6 +38,7 @@ public slots:
 	void print() const;
 	void dataModelChanged();
 	void savePdf();
+	void aboutDialog();
 
 protected:
 	void closeEvent(QCloseEvent *event) override;

source/mainwindow.ui

@@ -137,7 +137,14 @@
     <addaction name="separator"/>
     <addaction name="actionQuit"/>
    </widget>
+   <widget class="QMenu" name="menuHelp">
+    <property name="title">
+     <string>Help</string>
+    </property>
+    <addaction name="actionAbout"/>
+   </widget>
    <addaction name="menuFile"/>
+   <addaction name="menuHelp"/>
   </widget>
   <widget class="QToolBar" name="toolBar">
    <property name="windowTitle">
@@ -237,6 +244,11 @@
     <string>Export as PDF file</string>
    </property>
   </action>
+  <action name="actionAbout">
+   <property name="text">
+    <string>About</string>
+   </property>
+  </action>
  </widget>
  <customwidgets>
   <customwidget>