Use string_width() to calculate the number of columns needed to draw the...

Use string_width() to calculate the number of columns needed to draw the preedit text, which != the number of characters in the string.

svn path=/trunk/KDE/kdebase/apps/konsole/; revision=714942

src/TerminalDisplay.cpp

@@ -1056,7 +1056,7 @@ void TerminalDisplay::paintEvent( QPaintEvent* pe )
 
 QRect TerminalDisplay::preeditRect() const
 {
-    const int preeditLength = _inputMethodData.preeditString.count();
+    const int preeditLength = string_width(_inputMethodData.preeditString);
 
     if ( preeditLength == 0 )
         return QRect();