Kate Part: Ctrl+Mouse Scroll to change font size

As seen in most applications out there. ;-)

Signed-off-by: Mavridis Philippe <mavridisf@gmail.com>

Fixed functionality of CTRL+Mouse Wheel when scrolling is not enabled.

Signed-off-by: Michele Calgaro <michele.calgaro@yahoo.it>
(cherry picked from commit 819074a379)

kate/part/kateviewinternal.cpp

@@ -3263,20 +3263,36 @@ void KateViewInternal::clear()
 
 void KateViewInternal::wheelEvent(TQWheelEvent* e)
 {
-  if (m_lineScroll->minValue() != m_lineScroll->maxValue() && e->orientation() != Qt::Horizontal) {
+	if (e->state() & ControlButton)
+	{
+		if (e->delta() > 0)
+		{
+			slotIncFontSizes();
+		}
+		else
+		{
+			slotDecFontSizes();
+		}
+	}
+	else
+	{
+		if (m_lineScroll->minValue() != m_lineScroll->maxValue() && e->orientation() != Qt::Horizontal)
+		{
 			// React to this as a vertical event
-    if ( ( e->state() & ControlButton ) || ( e->state() & ShiftButton ) ) {
+			if ( e->state() & ShiftButton )
+			{
 				if (e->delta() > 0)
 					scrollPrevPage();
 				else
 					scrollNextPage();
-    } else {
+			}
+			else
+			{
 				scrollViewLines(-((e->delta() / 120) * TQApplication::wheelScrollLines()));
 				// maybe a menu was opened or a bubbled window title is on us -> we shall erase it
 				update();
 				leftBorder->update();
 			}
-
 		} else if (columnScrollingPossible()) {
 			TQWheelEvent copy = *e;
 			TQApplication::sendEvent(m_columnScroll, &copy);
@@ -3284,6 +3300,7 @@ void KateViewInternal::wheelEvent(TQWheelEvent* e)
 		} else {
 			e->ignore();
 		}
+	}
 }
 
 void KateViewInternal::startDragScroll()