preferredTargetWidth property

Leaves/LeavesView.h

@@ -33,6 +33,7 @@
 
 	CGSize pageSize;
 	LeavesCache *pageCache;
+	CGFloat preferredTargetWidth;
 	BOOL backgroundRendering;
 
 	CGPoint touchBeganPoint;
@@ -44,6 +45,7 @@
 @property (assign) id<LeavesViewDataSource> dataSource;
 @property (assign) id<LeavesViewDelegate> delegate;
 @property (readonly) CGFloat targetWidth;
+@property (assign) CGFloat preferredTargetWidth;
 @property (assign) NSUInteger currentPageIndex;
 @property (assign) BOOL backgroundRendering;
 

Leaves/LeavesView.m

@@ -19,7 +19,7 @@ @interface LeavesView ()
 @implementation LeavesView
 
 @synthesize delegate;
-@synthesize leafEdge, currentPageIndex, backgroundRendering;
+@synthesize leafEdge, currentPageIndex, backgroundRendering, preferredTargetWidth;
 
 - (void) setUpLayers {
 	self.clipsToBounds = YES;
@@ -213,13 +213,29 @@ - (CGFloat) dragThreshold {
 
 - (CGFloat) targetWidth {
 	// Magic empirical formula
-	return MAX(28, self.bounds.size.width / 5);
+	if (preferredTargetWidth > 0 && preferredTargetWidth < self.bounds.size.width / 2)
+		return preferredTargetWidth;
+	else
+		return MAX(28, self.bounds.size.width / 5);
+}
+
+- (void) updateTargetRects {
+	CGFloat targetWidth = [self targetWidth];
+	nextPageRect = CGRectMake(self.bounds.size.width - targetWidth,
+							  0,
+							  targetWidth,
+							  self.bounds.size.height);
+	prevPageRect = CGRectMake(0,
+							  0,
+							  targetWidth,
+							  self.bounds.size.height);
 }
 
 #pragma mark accessors
 
 - (id<LeavesViewDataSource>) dataSource {
 	return pageCache.dataSource;
+
 }
 
 - (void) setDataSource:(id<LeavesViewDataSource>)value {
@@ -248,7 +264,12 @@ - (void) setCurrentPageIndex:(NSUInteger)aCurrentPageIndex {
 	[CATransaction commit];
 }
 
-#pragma mark UIView methods
+- (void) setPreferredTargetWidth:(CGFloat)value {
+	preferredTargetWidth = value;
+	[self updateTargetRects];
+}
+
+#pragma mark UIResponder methods
 
 - (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
 	if (interactionLocked)
@@ -337,16 +358,7 @@ - (void) layoutSubviews {
 		[CATransaction commit];
 		pageCache.pageSize = self.bounds.size;
 		[self getImages];
-
-		CGFloat touchRectsWidth = self.bounds.size.width / 7;
-		nextPageRect = CGRectMake(self.bounds.size.width - touchRectsWidth,
-								  0,
-								  touchRectsWidth,
-								  self.bounds.size.height);
-		prevPageRect = CGRectMake(0,
-								  0,
-								  touchRectsWidth,
-								  self.bounds.size.height);
+		[self updateTargetRects];
 	}
 }