setNeedsDisplay if blend mode changes

kgn · Sep 12, 2012 · 0a3622d · 0a3622d
1 parent ac1c7b9
commit 0a3622d
Showing 1 changed file with 11 additions and 0 deletions.
diff --git a/KGNoise.m b/KGNoise.m
@@ -111,6 +111,17 @@ - (void)setNoiseOpacity:(CGFloat)noiseOpacity{
     }
 }
 
+- (void)setNoiseBlendMode:(CGBlendMode)noiseBlendMode{
+    if(_noiseBlendMode != noiseBlendMode){
+        _noiseBlendMode = noiseBlendMode;
+#if TARGET_OS_IPHONE
+        [self setNeedsDisplay];
+#else
+        [self setNeedsDisplay:YES];
+#endif
+    }
+}
+
 #if TARGET_OS_IPHONE
 - (void)drawRect:(CGRect)dirtyRect{
     CGContextRef context = UIGraphicsGetCurrentContext();