Merge pull request #1283 from laanwj/2012_05_prevent_tooltip_infiniteloop

Prevent tooltip filter from ever causing infinite loops

src/qt/guiutil.cpp

@@ -257,7 +257,7 @@ bool ToolTipToRichTextFilter::eventFilter(QObject *obj, QEvent *evt)
     {
         QWidget *widget = static_cast<QWidget*>(obj);
         QString tooltip = widget->toolTip();
-        if(!Qt::mightBeRichText(tooltip) && tooltip.size() > size_threshold)
+        if(tooltip.size() > size_threshold && !tooltip.startsWith("<qt/>") && !Qt::mightBeRichText(tooltip))
         {
             // Prefix <qt/> to make sure Qt detects this as rich text
             // Escape the current message as HTML and replace \n by <br>