desktop: cache photo and geo icons

The icons shown in the dive list were rendered for every single
access. Render them only once. This supposes that the
defaultIconMetrics structure does not change once the icons are
rendered!

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>

1 files changed, 1 insertions, 1 deletions

diff --git a/core/metrics.h b/core/metrics.h
index 4c636bcc4..e345213a7 100644
--- a/core/metrics.h
+++ b/core/metrics.h
@@ -31,7 +31,7 @@ struct IconMetrics {
 	IconMetrics();
 };
 
-const IconMetrics & defaultIconMetrics();
+const IconMetrics &defaultIconMetrics();
 void updateDevicePixelRatio(double dpr);
 
 #endif // METRICS_H