Fixes and improvements

KVNProgress/Categories/UIColor+KVNContrast.m

@@ -12,8 +12,11 @@ @implementation UIColor (KVNContrast)
 
 - (UIStatusBarStyle)statusBarStyleConstrastStyle
 {
-	const CGFloat *componentColors = CGColorGetComponents(self.CGColor);
-	CGFloat darknessScore = (((componentColors[0] * 255) * 299) + ((componentColors[1] * 255) * 587) + ((componentColors[2] * 255) * 114)) / 1000;
+    CGFloat red = 0, green = 0, blue = 0;
+
+    [self getRed:&red green:&green blue:&blue alpha:nil];
+
+	CGFloat darknessScore = (((red * 255) * 299) + ((green * 255) * 587) + ((blue * 255) * 114)) / 1000;
 
 	if (darknessScore >= 125) {
 		return UIStatusBarStyleDefault;

KVNProgress/Classes/KVNProgress.m

@@ -879,6 +879,9 @@ - (void)addToWindow
 		self.progressWindow.rootViewController = [[KVNRotationViewController alloc] init];
 	}
 
+    KVNRotationViewController *rotationVC = (KVNRotationViewController *)self.progressWindow.rootViewController;
+    rotationVC.supportedOrientations = self.configuration.supportedOrientations;
+
 	self.progressWindow.frame = self.originalKeyWindow.frame;
 
 	// Since iOS 9.0 set the windowsLevel to UIWindowLevelStatusBar is not working anymore.
@@ -896,6 +899,11 @@ - (void)addToView:(UIView *)superview
 		return;
 	}
 
+    // Set current window as original so we can use it in blurredScreenShot
+    if (self.originalKeyWindow == nil) {
+        self.originalKeyWindow = [UIApplication sharedApplication].keyWindow;
+    }
+
 	if (self.superview) {
 		[self.superview removeConstraints:self.constraintsToSuperview];
 		[self removeFromSuperview];

KVNProgress/Classes/KVNProgressConfiguration.h

@@ -96,6 +96,14 @@ typedef NS_ENUM(NSUInteger, KVNProgressBackgroundType) {
  */
 @property (nonatomic, getter = doesAllowUserInteraction) BOOL allowUserInteraction;
 
+#pragma mark - Interface Orientations
+
+/** 
+ * Specify supported orientations to be used by KVNRotationViewController.
+ * Default value is UIInterfaceOrientationMaskAll.
+ */
+@property (nonatomic, assign) UIInterfaceOrientationMask supportedOrientations;
+
 #pragma mark - Helper
 
 /** Create an instance of <code>KVNProgressConfiguration</code> with default configuration. */

KVNProgress/Classes/KVNProgressConfiguration.m

@@ -41,6 +41,8 @@ - (id)init
 
 		_tapBlock = nil;
 		_allowUserInteraction = NO;
+
+        _supportedOrientations = UIInterfaceOrientationMaskAll;
 	}
 
 	return self;
@@ -78,6 +80,8 @@ - (id)copyWithZone:(NSZone *)zone
 
 	copy.tapBlock = self.tapBlock;
 	copy.allowUserInteraction = self.allowUserInteraction;
+
+    copy.supportedOrientations = self.supportedOrientations;
 
 	return copy;
 }

KVNProgress/Classes/KVNRotationViewController.h

@@ -14,4 +14,6 @@
  */
 @interface KVNRotationViewController : UIViewController
 
+@property (nonatomic, assign) UIInterfaceOrientationMask supportedOrientations;
+
 @end

KVNProgress/Classes/KVNRotationViewController.m

@@ -14,9 +14,20 @@
  */
 @implementation KVNRotationViewController
 
+- (instancetype)init
+{
+    self = [super init];
+
+    if (self) {
+        self.supportedOrientations = UIInterfaceOrientationMaskAll;
+    }
+
+    return self;
+}
+
 - (UIInterfaceOrientationMask)supportedInterfaceOrientations
 {
-	return UIInterfaceOrientationMaskAll;
+	return self.supportedOrientations;
 }
 
 - (BOOL)shouldAutorotate