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-rw-r--r--qt-ui/profilegraphics.cpp8
1 files changed, 7 insertions, 1 deletions
diff --git a/qt-ui/profilegraphics.cpp b/qt-ui/profilegraphics.cpp
index 5607cb3b8..c1e51ac25 100644
--- a/qt-ui/profilegraphics.cpp
+++ b/qt-ui/profilegraphics.cpp
@@ -114,7 +114,7 @@ extern struct ev_select *ev_namelist;
extern int evn_allocated;
extern int evn_used;
-ProfileGraphicsView::ProfileGraphicsView(QWidget* parent) : QGraphicsView(parent) , dive(0)
+ProfileGraphicsView::ProfileGraphicsView(QWidget* parent) : QGraphicsView(parent) , dive(0), toolTip(0)
{
gc.printer = false;
setScene(new QGraphicsScene());
@@ -139,6 +139,9 @@ ProfileGraphicsView::ProfileGraphicsView(QWidget* parent) : QGraphicsView(parent
void ProfileGraphicsView::wheelEvent(QWheelEvent* event)
{
+ if (!toolTip)
+ return;
+
setTransformationAnchor(QGraphicsView::AnchorUnderMouse);
// Scale the view / do the zoom
@@ -157,6 +160,9 @@ void ProfileGraphicsView::wheelEvent(QWheelEvent* event)
void ProfileGraphicsView::mouseMoveEvent(QMouseEvent* event)
{
+ if (!toolTip)
+ return;
+
toolTip->refresh(&gc, mapToScene(event->pos()));
QPoint toolTipPos = mapFromScene(toolTip->pos());