Use QFontMetrics::height() instead of averageCharWidth()

QFontMetrics::averageCharWidth() is quite slow and does not work
well on fonts with broken characters. In the
usecases required by Dolphin QFontMetrics::height() is a better
and faster alternative to get a font-dependent minimum width.

Thanks go to Christoph Feck for this hint!

1 files changed, 1 insertions, 1 deletions

diff --git a/src/search/dolphinsearchbox.cpp b/src/search/dolphinsearchbox.cpp
index d65eb5b7c..06644e1f3 100644
--- a/src/search/dolphinsearchbox.cpp
+++ b/src/search/dolphinsearchbox.cpp
@@ -91,7 +91,7 @@ void DolphinSearchBox::setSearchPath(const KUrl& url)
     m_searchPath = url;
 
     QFontMetrics metrics(m_fromHereButton->font());
-    const int maxWidth = metrics.averageCharWidth() * 15;
+    const int maxWidth = metrics.height() * 8;
 
     QString location = url.fileName();
     if (location.isEmpty()) {