ui: added context menu option to copy a graph-node's name

src/lib_gui/qt/graphics/QtGraphicsView.cpp

@@ -5,9 +5,14 @@
 #include <QScrollBar>
 #include <QTimer>
 
+#include <QApplication>
+#include <QClipboard>
 #include <QPropertyAnimation>
 #include <QParallelAnimationGroup>
 
+#include "qt/view/graphElements/QtGraphNode.h"
+#include "qt/view/graphElements/QtGraphNodeData.h"
+#include "qt/view/graphElements/QtGraphNodeBundle.h"
 #include "qt/utility/QtContextMenu.h"
 #include "settings/ApplicationSettings.h"
 
@@ -34,6 +39,11 @@ QtGraphicsView::QtGraphicsView(QWidget* parent)
 	m_exportGraphAction->setStatusTip(tr("Save this graph as image file"));
 	m_exportGraphAction->setToolTip(tr("Save this graph as image file"));
 	connect(m_exportGraphAction, SIGNAL(triggered()), this, SLOT(exportGraph()));
+
+	m_copyNodeNameAction = new QAction(tr("Copy Name"), this);
+	m_copyNodeNameAction->setStatusTip(tr("Copies the name of this node to the clipboard"));
+	m_copyNodeNameAction->setToolTip(tr("Copies the name of this node to the clipboard"));
+	connect(m_copyNodeNameAction, SIGNAL(triggered()), this, SLOT(copyNodeName()));
 }
 
 float QtGraphicsView::getZoomFactor() const
@@ -47,6 +57,20 @@ void QtGraphicsView::setAppZoomFactor(float appZoomFactor)
 	updateTransform();
 }
 
+QtGraphNode* QtGraphicsView::getNodeAtCursorPosition() const
+{
+	QtGraphNode* node = nullptr;
+
+	QPointF point = mapToScene(mapFromGlobal(QCursor::pos()));
+	QGraphicsItem* item = scene()->itemAt(point, QTransform());
+	if (item)
+	{
+		node = dynamic_cast<QtGraphNode*>(item->parentItem());
+	}
+
+	return node;
+}
+
 void QtGraphicsView::ensureVisibleAnimated(const QRectF& rect, int xmargin, int ymargin)
 {
 	int xval = horizontalScrollBar()->value();
@@ -187,7 +211,27 @@ void QtGraphicsView::wheelEvent(QWheelEvent* event)
 
 void QtGraphicsView::contextMenuEvent(QContextMenuEvent* event)
 {
-	QtContextMenu::getInstance()->showExtended(event, this, std::vector<QAction*>(1, m_exportGraphAction));
+	m_clipboardNodeName = "";
+
+	QtGraphNode* node = getNodeAtCursorPosition();
+	while (node)
+	{
+		if (dynamic_cast<QtGraphNodeData*>(node) || dynamic_cast<QtGraphNodeBundle*>(node))
+		{
+			m_clipboardNodeName = node->getName();
+			break;
+		}
+		node = node->getParent();
+	}
+
+	std::vector<QAction*> actions;
+	actions.push_back(m_exportGraphAction);
+	if (!m_clipboardNodeName.empty())
+	{
+		actions.push_back(m_copyNodeNameAction);
+	}
+
+	QtContextMenu::getInstance()->showExtended(event, this, actions);
 }
 
 void QtGraphicsView::updateTimer()
@@ -322,6 +366,11 @@ void QtGraphicsView::exportGraph()
 	}
 }
 
+void QtGraphicsView::copyNodeName()
+{
+	QApplication::clipboard()->setText(m_clipboardNodeName.c_str());
+}
+
 bool QtGraphicsView::moves() const
 {
 	return m_up || m_down || m_left || m_right;

src/lib_gui/qt/graphics/QtGraphicsView.h

@@ -8,6 +8,7 @@
 #include <memory>
 
 class QTimer;
+class QtGraphNode;
 
 class QtGraphicsView
 	: public QGraphicsView
@@ -20,6 +21,8 @@ public:
 	float getZoomFactor() const;
 	void setAppZoomFactor(float appZoomFactor);
 
+	QtGraphNode* getNodeAtCursorPosition() const;
+
 	void ensureVisibleAnimated(const QRectF& rect, int xmargin = 50, int ymargin = 50);
 
 protected:
@@ -41,6 +44,7 @@ private slots:
 	void stopTimer();
 
 	void exportGraph();
+	void copyNodeName();
 
 private:
 	bool moves() const;
@@ -59,10 +63,13 @@ private:
 	bool m_right;
 	bool m_shift;
 
+	std::string m_clipboardNodeName;
+
 	std::shared_ptr<QTimer> m_timer;
 	std::shared_ptr<QTimer> m_timerStopper;
 
 	QAction* m_exportGraphAction;
+	QAction* m_copyNodeNameAction;
 };
 
 #endif // QT_GRAPHICS_VIEW_H

src/lib_gui/qt/view/QtGraphView.cpp

@@ -171,15 +171,10 @@ void QtGraphView::switchToNewGraphData()
 
 	// Manually hover the item below the mouse cursor.
 	QtGraphicsView* view = getView();
-	QPointF point = view->mapToScene(view->mapFromGlobal(QCursor::pos()));
-	QGraphicsItem* item = view->scene()->itemAt(point, QTransform());
-	if (item)
+	QtGraphNode* node = view->getNodeAtCursorPosition();
+	if (node)
 	{
-		QtGraphNode* node = dynamic_cast<QtGraphNode*>(item->parentItem());
-		if (node)
-		{
-			node->hoverEnter();
-		}
+		node->hoverEnter();
 	}
 
 	if (m_activeNode)