Modified the sublayer layout in CPLayer, CPPlotArea, and CPPlotAreaFr…

…ame to to use the frame instead of adjusting the anchor point and position. Fixed issue #157.

framework/Source/CPLayer.m

@@ -378,20 +378,19 @@ -(void)layoutSublayers
 	// This is where we do our custom replacement for the Mac-only layout manager and autoresizing mask
 	// Subclasses should override to lay out their own sublayers
 	// Sublayers fill the super layer's bounds minus any padding by default
+	CGFloat leftPadding = self.paddingLeft;
+	CGFloat bottomPadding = self.paddingBottom;
+
 	CGRect selfBounds = self.bounds;
 	CGSize subLayerSize = selfBounds.size;
-	subLayerSize.width -= self.paddingLeft + self.paddingRight;
+	subLayerSize.width -= leftPadding + self.paddingRight;
 	subLayerSize.width = MAX(subLayerSize.width, 0.0);
-	subLayerSize.height -= self.paddingTop + self.paddingBottom;
+	subLayerSize.height -= self.paddingTop + bottomPadding;
 	subLayerSize.height = MAX(subLayerSize.height, 0.0);
 
 	for (CALayer *subLayer in self.sublayers) {
 		if ([subLayer isKindOfClass:[CPLayer class]]) {
-			CGRect subLayerBounds = subLayer.bounds;
-			subLayerBounds.size = subLayerSize;
-			subLayer.bounds = subLayerBounds;
-			subLayer.anchorPoint = CGPointZero;
-			subLayer.position = CGPointMake(selfBounds.origin.x + self.paddingLeft, selfBounds.origin.y	+ self.paddingBottom);
+            subLayer.frame = CGRectMake(leftPadding, bottomPadding, subLayerSize.width, subLayerSize.height);
 		}
 	}
 }

framework/Source/CPPieChart.m

@@ -143,15 +143,6 @@ -(void)reloadData
 	}
 }
 
-#pragma mark -
-#pragma mark Layout
-
--(void)layoutSublayers 
-{
-    [super layoutSublayers];
-//    [self addLabelLayers];
-}
-
 #pragma mark -
 #pragma mark Drawing
 

framework/Source/CPPlotArea.m

@@ -185,16 +185,14 @@ -(void)layoutSublayers
 	sublayerPosition = CGPointMake(-sublayerPosition.x, -sublayerPosition.y);
 
 	for (CALayer *subLayer in self.sublayers) {
-		subLayer.bounds = sublayerBounds;
-		subLayer.anchorPoint = CGPointZero;
-		subLayer.position = sublayerPosition;
+		subLayer.frame = CGRectMake(sublayerPosition.x, sublayerPosition.y, sublayerBounds.size.width, sublayerBounds.size.height);
 	}
 
 	// make the plot group the same size as the plot area to clip the plots
 	CPPlotGroup *thePlotGroup = self.plotGroup;
 	if ( thePlotGroup ) {
-		thePlotGroup.bounds = self.bounds;
-		thePlotGroup.position = CGPointZero;
+		CGSize selfBoundsSize = self.bounds.size;
+		thePlotGroup.frame = CGRectMake(0.0, 0.0, selfBoundsSize.width, selfBoundsSize.height);
 	}
 }
 

framework/Source/CPPlotAreaFrame.m

@@ -67,24 +67,21 @@ +(CGFloat)defaultZPosition
 
 -(void)layoutSublayers 
 {
-	[super layoutSublayers];
-
 	CPPlotArea *thePlotArea = self.plotArea;
 	if ( thePlotArea ) {
+		CGFloat leftPadding = self.paddingLeft;
+		CGFloat bottomPadding = self.paddingBottom;
+
 		CGRect selfBounds = self.bounds;
 		CGSize subLayerSize = selfBounds.size;
 		CGFloat lineWidth = self.borderLineStyle.lineWidth;
 
-		subLayerSize.width -= self.paddingLeft + self.paddingRight + lineWidth;
+		subLayerSize.width -= leftPadding + self.paddingRight + lineWidth;
 		subLayerSize.width = MAX(subLayerSize.width, 0.0);
-		subLayerSize.height -= self.paddingTop + self.paddingBottom + lineWidth;
+		subLayerSize.height -= self.paddingTop + bottomPadding + lineWidth;
 		subLayerSize.height = MAX(subLayerSize.height, 0.0);
 
-		CGRect subLayerBounds = thePlotArea.bounds;
-		subLayerBounds.size = subLayerSize;
-		thePlotArea.bounds = subLayerBounds;
-		thePlotArea.anchorPoint = CGPointZero;
-		thePlotArea.position = CGPointMake(selfBounds.origin.x + self.paddingLeft, selfBounds.origin.y + self.paddingBottom);
+		thePlotArea.frame = CGRectMake(leftPadding, bottomPadding, subLayerSize.width, subLayerSize.height);
 	}
 }