Display the name of the current hovered element of the element collection tree, in the status bar.

git-svn-id: svn+ssh://svn.tuxfamily.org/svnroot/qet/qet/trunk@4773 bfdf4180-ca20-0410-9c96-a3a8aa849046

sources/ElementsCollection/elementscollectionwidget.cpp

@@ -29,6 +29,7 @@
 #include "qetproject.h"
 #include "qetelementeditor.h"
 #include "elementstreeview.h"
+#include "qetdiagrameditor.h"
 
 #include <QVBoxLayout>
 #include <QMenu>
@@ -115,6 +116,14 @@ bool ElementsCollectionWidget::event(QEvent *event)
 	return QWidget::event(event);
 }
 
+void ElementsCollectionWidget::leaveEvent(QEvent *event)
+{
+	if (QETDiagramEditor *qde = QETApp::diagramEditorAncestorOf(this))
+		qde->statusBar()->clearMessage();
+
+	QWidget::leaveEvent(event);
+}
+
 void ElementsCollectionWidget::setUpAction()
 {
 	m_open_dir =       new QAction(QET::Icons::DocumentOpen,  tr("Ouvrir le dossier correspondant"), this);
@@ -190,6 +199,13 @@ void ElementsCollectionWidget::setUpConnection()
 	connect(m_tree_view, &QTreeView::doubleClicked, [this](const QModelIndex &index) {
 		this->m_index_at_context_menu = index ;
 		this->editElement();});
+
+	connect(m_tree_view, &QTreeView::entered, [this] (const QModelIndex &index) {
+		QETDiagramEditor *qde = QETApp::diagramEditorAncestorOf(this);
+		ElementCollectionItem *eci = elementCollectionItemForIndex(index);
+		if (qde && eci)
+			qde->statusBar()->showMessage(eci->localName());
+	});
 }
 
 /**

sources/ElementsCollection/elementscollectionwidget.h

@@ -54,6 +54,7 @@ class ElementsCollectionWidget : public QWidget
 
 	protected:
 		virtual bool event(QEvent *event);
+		virtual void leaveEvent(QEvent *event);
 
 	private:
 		void setUpAction();

sources/qetapp.cpp

@@ -609,6 +609,23 @@ QETDiagramEditor *QETApp::diagramEditorForFile(const QString &filepath) {
 	return(0);
 }
 
+/**
+ * @brief QETApp::diagramEditorAncestorOf
+ * @param child
+ * @return the parent QETDiagramEditor (or grandparent and so on to any level) of the given child.
+ * If not return nullptr;
+ */
+QETDiagramEditor *QETApp::diagramEditorAncestorOf (const QWidget *child)
+{
+	foreach (QETDiagramEditor *qde, QETApp::diagramEditors()) {
+		if (qde->isAncestorOf(child)) {
+			return qde;
+		}
+	}
+
+	return nullptr;
+}
+
 #ifdef QET_ALLOW_OVERRIDE_CED_OPTION
 /**
 	Redefinit le chemin du dossier des elements communs

sources/qetapp.h

@@ -122,6 +122,7 @@ class QETApp : public QETSingleApplication {
 	static QString lang_dir; ///< Directory containing localization files.
 	static QFont diagramTextsFont(qreal = -1.0);
 	static QETDiagramEditor *diagramEditorForFile(const QString &);
+	static QETDiagramEditor *diagramEditorAncestorOf (const QWidget *child);
 	static QList<QETDiagramEditor *> diagramEditors();
 	static QList<QETElementEditor *> elementEditors();
 	static QList<QETElementEditor *> elementEditors(QETProject *);