QWindowsVistaStyle: Reorder the if statement so the variable is checked first

Since the likelyhood that decoration_size is greater than 0 then we can
save time with explicitly ensuring that it does not call the functions.

Change-Id: Iaf991a6c77bbc4908c459307ca7e645cf3b3ca20
Reviewed-by: Friedemann Kleint <Friedemann.Kleint@theqtcompany.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/widgets/styles/qwindowsvistastyle.cpp b/src/widgets/styles/qwindowsvistastyle.cpp
index 083b1d1707..3fa0fc899d 100644
--- a/src/widgets/styles/qwindowsvistastyle.cpp
+++ b/src/widgets/styles/qwindowsvistastyle.cpp
@@ -398,7 +398,7 @@ void QWindowsVistaStyle::drawPrimitive(PrimitiveElement element, const QStyleOpt
         {
             XPThemeData theme(widget, painter, QWindowsXPStylePrivate::TreeViewTheme);
             static int decoration_size = 0;
-            if (d->initTreeViewTheming() && theme.isValid() && !decoration_size) {
+            if (!decoration_size && d->initTreeViewTheming() && theme.isValid()) {
                 XPThemeData themeSize = theme;
                 themeSize.partId = TVP_HOTGLYPH;
                 themeSize.stateId = GLPS_OPENED;