Fix segfault on mouseOver at the Profile with an invalid dive selected ( trip )

Signed-off-by: Tomaz Canabrava <tcanabrava@kde.org>

1 files changed, 7 insertions, 5 deletions

diff --git a/qt-ui/profilegraphics.cpp b/qt-ui/profilegraphics.cpp
index 751d685e5..571214f6f 100644
--- a/qt-ui/profilegraphics.cpp
+++ b/qt-ui/profilegraphics.cpp
@@ -214,15 +214,13 @@ void ProfileGraphicsView::plot(struct dive *d)
 		resetTransform();
 		zoomLevel = 0;
 		dive = d;
+		toolTip = 0;
 	}
 
-	if(!isVisible()){
+	if(!isVisible() || !dive){
 		return;
 	}
 
-	if(!dive)
-		return;
-
 	scene()->setSceneRect(0,0, viewport()->width()-50, viewport()->height()-50);
 
 	QSettings s;
@@ -1278,8 +1276,12 @@ void ToolTipItem::collapse()
 
 void ToolTipItem::expand()
 {
-	QRectF nextRectangle;
 
+	if (!title){
+		return;
+	}
+
+	QRectF nextRectangle;
 	double width = 0, height = title->boundingRect().height() + SPACING;
 	Q_FOREACH(ToolTip t, toolTips) {
 		if (t.second->boundingRect().width() > width)