CComponentsSignals: add signal OnBeforeRePaint

Origin commit data
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Commit: be8588a4a5
Author: Thilo Graf <dbt@novatux.de>
Date: 2017-02-02 (Thu, 02 Feb 2017)

src/gui/components/cc_signals.h

@@ -113,6 +113,8 @@ class CComponentsSignals : public sigc::trackable
 
 		///signal on before paint()
 		sigc::signal<void> OnBeforePaint;
+		///signal on before repaint, means: paint() is already done and item paint() is called again
+		sigc::signal<void> OnBeforeRePaint;
 		///signal on after paint()
 		sigc::signal<void> OnAfterPaint;