X-Git-Url: http://git.code-monkey.de/?p=pulseview.git;a=blobdiff_plain;f=pv%2Fview%2Fviewwidget.cpp;h=ce5c27a83dce2a3c6784dcda17e5d0b2e018b9b7;hp=30d96eb356259c9669bbfdd243f27db066d4ebfe;hb=efdec55aec1a137460fa362a381ed1904182bfed;hpb=2ad82c2e40b6865481733913a2c32735602f63c4

diff --git a/pv/view/viewwidget.cpp b/pv/view/viewwidget.cpp
index 30d96eb..ce5c27a 100644
--- a/pv/view/viewwidget.cpp
+++ b/pv/view/viewwidget.cpp
@@ -14,8 +14,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
  */
 
 #include <QApplication>
@@ -31,7 +30,8 @@ using std::shared_ptr;
 using std::vector;
 
 namespace pv {
-namespace view {
+namespace views {
+namespace TraceView {
 
 ViewWidget::ViewWidget(View &parent) :
 	QWidget(&parent),
@@ -223,9 +223,10 @@ void ViewWidget::mouse_left_release_event(QMouseEvent *event)
 	item_dragging_ = false;
 }
 
-bool ViewWidget::touch_event(QTouchEvent *e)
+bool ViewWidget::touch_event(QTouchEvent *event)
 {
-	(void)e;
+	(void)event;
+
 	return false;
 }
 
@@ -250,16 +251,23 @@ void ViewWidget::mousePressEvent(QMouseEvent *event)
 {
 	assert(event);
 
-	mouse_down_point_ = event->pos();
-	mouse_down_item_ = get_mouse_over_item(event->pos());
-
-	if (event->button() & Qt::LeftButton)
+	/* Ignore right click events as they will open context menus when
+	 * used on trace labels. Those menus prevent ViewWidget::mouseReleaseEvent()
+	 * to be triggered upon button release, making mouse_down_item_
+	 * hold the last reference to a view item that might have been deleted
+	 * from the context menu, preventing it from being freed as intended.
+	 */
+	if (event->button() & Qt::LeftButton) {
+		mouse_down_point_ = event->pos();
+		mouse_down_item_ = get_mouse_over_item(event->pos());
 		mouse_left_press_event(event);
+	}
 }
 
 void ViewWidget::mouseReleaseEvent(QMouseEvent *event)
 {
 	assert(event);
+
 	if (event->button() & Qt::LeftButton)
 		mouse_left_release_event(event);
 
@@ -267,16 +275,16 @@ void ViewWidget::mouseReleaseEvent(QMouseEvent *event)
 	mouse_down_item_ = nullptr;
 }
 
-void ViewWidget::mouseMoveEvent(QMouseEvent *e)
+void ViewWidget::mouseMoveEvent(QMouseEvent *event)
 {
-	assert(e);
-	mouse_point_ = e->pos();
+	assert(event);
+	mouse_point_ = event->pos();
 
-	if (!e->buttons())
-		item_hover(get_mouse_over_item(e->pos()));
-	else if (e->buttons() & Qt::LeftButton) {
+	if (!event->buttons())
+		item_hover(get_mouse_over_item(event->pos()));
+	else if (event->buttons() & Qt::LeftButton) {
 		if (!item_dragging_) {
-			if ((e->pos() - mouse_down_point_).manhattanLength() <
+			if ((event->pos() - mouse_down_point_).manhattanLength() <
 				QApplication::startDragDistance())
 				return;
 
@@ -287,7 +295,7 @@ void ViewWidget::mouseMoveEvent(QMouseEvent *e)
 		}
 
 		// Do the drag
-		drag_items(e->pos() - mouse_down_point_);
+		drag_items(event->pos() - mouse_down_point_);
 	}
 }
 
@@ -297,5 +305,6 @@ void ViewWidget::leaveEvent(QEvent*)
 	update();
 }
 
-} // namespace view
+} // namespace TraceView
+} // namespace views
 } // namespace pv