Initial commit

Lts/Viewer/SituationMap/Tests/GraphicsViewTouchTest/main.cpp

@@ -0,0 +1,86 @@
+/**
+  * @RDE_HEADER@
+  * Declaration/Definition
+  * $Id$
+  * $HeadURL$
+  * $Author$
+  */
+
+
+#include <QtWidgets/QApplication>
+#include <QtWidgets/QGraphicsScene>
+#include <QtWidgets/QGraphicsView>
+#include <QtWidgets/QGraphicsProxyWidget>
+#include <QtWidgets/QMessageBox>
+#include <QtWidgets/QPushButton>
+#include <QtWidgets/QTextEdit>
+#include <QtWidgets/QHBoxLayout>
+
+class View : public QGraphicsView
+{
+  private:
+
+    QPushButton                            * m_button;
+    QPushButton                            * m_reset;
+    QTextEdit                              * m_console;
+
+  public:
+
+    View(QGraphicsScene * scene, QTextEdit * console, QWidget * parent = nullptr) : QGraphicsView(scene, parent), m_console(console)
+    {
+      setFixedSize( 600, 400 );
+
+      QGraphicsProxyWidget * widgetProxy;
+
+      m_reset     = new QPushButton( "Reset", nullptr );  // button must be toplevel widget
+      widgetProxy = scene->addWidget( m_reset );
+      widgetProxy -> setPos( this->mapToScene(150,100) );
+
+      connect(m_reset, &QPushButton::clicked, this, [this]()
+      {
+        this->m_console->append("Reset cursor.\n");
+        this->viewport()->setCursor( Qt::CursorShape::CrossCursor );
+      });
+
+      m_button    = new QPushButton( "Touch or Click me \n to change cursor.", nullptr );  // button must be toplevel widget
+      widgetProxy = scene->addWidget( m_button );
+      widgetProxy -> setPos( this->mapToScene(250,200) );
+
+      connect(m_button, &QPushButton::clicked, this, [this]()
+      {
+        this->m_console->append("Button has been clicked --> cursor shape changed to cross cursor.\n");
+        this->viewport()->setCursor( Qt::CursorShape::CrossCursor );
+        update();
+      });
+
+      connect(m_button, &QPushButton::pressed, this, [this]()
+      {
+        this->m_console->append("Button has been pressed.\n");
+      });
+
+      this->viewport()->setCursor( Qt::CursorShape::PointingHandCursor );
+
+    } // View( QGraphicsScene * scene, QWidget * parent = nullptr )
+
+}; // class View
+
+
+int main (int argc, char* argv[])
+{
+  QApplication app ( argc, argv );
+
+  QApplication::setApplicationName("QGraphicsView Touch Test");
+
+  QGraphicsScene   scene;
+  QWidget          top;
+  QHBoxLayout    * layout  = new QHBoxLayout( &top );
+  QTextEdit      * console = new QTextEdit( &top );
+  View           * view    = new View( &scene, console, &top );
+
+  layout->addWidget( view );
+  layout->addWidget( console );
+
+  top.show();
+
+  return app.exec();
+} // main (int argc, char* argv[])