Category for Sparrow to change the color of SPViewController auto rotation border.

SPViewController+AutoRotationBorderColor.h

//
//  SPViewController+AutoRotationBorderColor.h
//  Barebone
//
//  Created by Shilo White on 7/3/14.
//
//

#import <Sparrow/Sparrow.h>

@interface SPViewController (AutoRotationBorderColor)

@property (nonatomic, retain) UIColor *autoRotationBorderColor;
@property (nonatomic, assign) uint autoRotationBorderHexColor;

@end

SPViewController+AutoRotationBorderColor.m

//
//  SPViewController+AutoRotationBorderColor.m
//  Barebone
//
//  Created by Shilo White on 7/3/14.
//
//

#import "SPViewController+AutoRotationBorderColor.h"
#import <objc/runtime.h>

@implementation SPViewController (AutoRotationBorderColor)

- (void)setAutoRotationBorderColor:(UIColor *)autoRotationBorderColor
{
    objc_setAssociatedObject(self, @selector(autoRotationBorderColor), autoRotationBorderColor, OBJC_ASSOCIATION_RETAIN_NONATOMIC);
}

- (UIColor *)autoRotationBorderColor
{
    return objc_getAssociatedObject(self, @selector(autoRotationBorderColor));
}

- (void)setAutoRotationBorderHexColor:(uint)autoRotationBorderHexColor
{
    self.autoRotationBorderColor = [UIColor colorWithRed:SP_COLOR_PART_RED(autoRotationBorderHexColor)/255.0f
                                                   green:SP_COLOR_PART_GREEN(autoRotationBorderHexColor)/255.0f
                                                    blue:SP_COLOR_PART_BLUE(autoRotationBorderHexColor)/255.0f
                                                   alpha:1.0f];
}

- (uint)autoRotationBorderHexColor
{
    UIColor *autoRotationBorderColor = self.autoRotationBorderColor;
    float red, green, blue;
    if ([autoRotationBorderColor getRed:&red green:&green blue:&blue alpha:NULL])
    {
        uint redInt = (uint)(red * 255 + 0.5);
        uint greenInt = (uint)(green * 255 + 0.5);
        uint blueInt = (uint)(blue * 255 + 0.5);
        return (redInt << 16) | (greenInt << 8) | blueInt;
    }
    return 0;
}

- (UIView *)borderView
{
    CGRect windowBounds = [Sparrow currentController].view.window.bounds;
    for (UIView *view in self.view.superview.subviews)
    {
        if (CGRectEqualToRect(view.frame, windowBounds))
        {
            CGSize viewBoundsSize = view.bounds.size;
            NSArray *subviews = view.subviews;
            if (subviews.count == 4)
            {
                for (UIView *subview in subviews)
                {
                    CGRect frame = subview.frame;
                    if (!CGSizeEqualToSize(frame.size, viewBoundsSize)) continue;
                    if (frame.origin.x != -viewBoundsSize.width &&
                        frame.origin.x != viewBoundsSize.width &&
                        frame.origin.y != -viewBoundsSize.height &&
                        frame.origin.y != viewBoundsSize.height) continue;
                }
                return view;
            }
        }
    }
    return nil;
}

- (void)willAnimateRotationToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
                                         duration:(NSTimeInterval)duration
{
    // inform all display objects about the new game size
    BOOL isPortrait = UIInterfaceOrientationIsPortrait(interfaceOrientation);
    
    SPStage *stage = self.stage;
    float newWidth  = isPortrait ? MIN(stage.width, stage.height) :
    MAX(stage.width, stage.height);
    float newHeight = isPortrait ? MAX(stage.width, stage.height) :
    MIN(stage.width, stage.height);
    
    if (newWidth != stage.width)
    {
        stage.width = newWidth;
        stage.height = newHeight;
        
        SPEvent *resizeEvent = [[SPResizeEvent alloc] initWithType:SPEventTypeResize
                                                             width:newWidth height:newHeight animationTime:duration];
        [stage broadcastEvent:resizeEvent];
    }
    
    UIView *borderView = [self borderView];
    if (borderView)
    {
        UIColor *autoRotationBorderColor = self.autoRotationBorderColor;
        [UIView setAnimationsEnabled:NO];
        for (UIView *subview in borderView.subviews)
            subview.backgroundColor = autoRotationBorderColor;
        [UIView setAnimationsEnabled:YES];
    }
}


@end