Add ability to change tint/shade of a color.

Change-Id: I6933393732d23fe9386cb8b768676887c026bd39

1 files changed, 10 insertions, 0 deletions

diff --git a/include/tools/color.hxx b/include/tools/color.hxx
index f940dbcf5688..c382f870e259 100644
--- a/include/tools/color.hxx
+++ b/include/tools/color.hxx
@@ -161,6 +161,16 @@ public:
     void IncreaseLuminance(sal_uInt8 cLumInc);
     void DecreaseLuminance(sal_uInt8 cLumDec);
 
+    /**
+     * Apply tint or shade to a color.
+     *
+     * The input value is the percentage (in 100th of percent) of how much the
+     * color changes towards the black (shade) or white (tint). If the value
+     * is positive, the color is tinted, if the value is negative, the color is
+     * shaded.
+     **/
+    void ApplyTintOrShade(sal_Int16 n100thPercent);
+
     void DecreaseContrast(sal_uInt8 cContDec);
 
     void Invert();