Add RBLView.cornerRadius

This way, it can be saved and reapplied just like other layer properties.

Rebel/RBLView.h

@@ -22,6 +22,15 @@
 // Defaults to NO.
 @property (nonatomic, assign) BOOL clipsToBounds;
 
+// A radius used to draw rounded corners for the view's background. This property
+// is not the same as CALayer.cornerRadius, but does manipulate it.
+//
+// Typically, you will want to enable clipsToBounds when setting this property
+// to a non-zero value.
+//
+// Defaults to 0.
+@property (nonatomic, assign) CGFloat cornerRadius;
+
 // Whether the view's drawing completely fills its bounds with opaque content.
 //
 // Defaults to NO.

Rebel/RBLView.m

@@ -42,6 +42,11 @@ static IMP RBLViewDrawRectIMP;
 	[self applyLayerProperties];
 }
 
+- (void)setCornerRadius:(CGFloat)radius {
+	_cornerRadius = radius;
+	[self applyLayerProperties];
+}
+
 - (BOOL)clipsToBounds {
 	return _flags.clipsToBounds;
 }
@@ -170,6 +175,7 @@ static IMP RBLViewDrawRectIMP;
 
 - (void)applyLayerProperties {
 	self.layer.backgroundColor = self.backgroundColor.rbl_CGColor;
+	self.layer.cornerRadius = self.cornerRadius;
 	self.layer.masksToBounds = self.clipsToBounds;
 	self.layer.opaque = self.opaque;
 }