From 0a3622d998837cfe3522cca3a9b7d63549f62d84 Mon Sep 17 00:00:00 2001
From: David Keegan <dkeegan@signnow.com>
Date: Wed, 12 Sep 2012 11:14:06 -0700
Subject: [PATCH] setNeedsDisplay if blend mode changes

---
 KGNoise.m | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/KGNoise.m b/KGNoise.m
index 4f420f6..7aea1cb 100644
--- 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();