//

//  GGBLayer.h

//  GGB-iPhone

//

//  Created by Jens Alfke on 3/7/08.

//  Copyright 2008 __MyCompanyName__. All rights reserved.

//

#if TARGET_OS_IPHONE

#import <QuartzCore/QuartzCore.h>

#else

#import <Quartz/Quartz.h>

#endif

extern NSString* const GGBLayerStyleChangedNotification;

@interface GGBLayer : CALayer <NSCopying>

{

    CABasicAnimation *_curAnimation;

    NSMutableDictionary *_styleDict;

#if ! TARGET_OS_IPHONE

}

#else

// For some reason, the CALayer class on iPhone OS doesn't have these!

    CGFloat _cornerRadius, _borderWidth;

    CGColorRef _borderColor, _realBGColor;

    unsigned int _autoresizingMask;

}

@property CGFloat cornerRadius, borderWidth;

@property CGColorRef borderColor;

#endif

- (void) redisplayAll;

- (void) animateAndBlock: (NSString*)keyPath from: (id)from to: (id)to duration: (NSTimeInterval)duration;

/** Change a property in this layer's 'style' dictionary (if it has one),

    and update every other layer that shares the same style dictionary. */

- (void) setValue: (id)value ofStyleProperty: (NSString*)prop;

/** Send a message to all sublayers in my tree */

- (void) makeSublayersPerformSelector: (SEL)selector withObject: (id)object;

@property (readonly) CATransform3D aggregateTransform;

/** Call this to notify all sublayers that their aggregate transform has changed. */

- (void) changedTransform;

/** Called to notify that a superlayer's transform has changed. */

- (void) aggregateTransformChanged;

@end

/** Moves a layer from one superlayer to another, without changing its position onscreen. */

void ChangeSuperlayer( CALayer *layer, CALayer *newSuperlayer, int index );

/** Removes a layer from its superlayer without any fade-out animation. */

void RemoveImmediately( CALayer *layer );

/** Disables animations until EndDisableAnimations is called. */

void BeginDisableAnimations(void);

void EndDisableAnimations(void);

CGColorRef GetEffectiveBackground( CALayer *layer );

NSString* StringFromTransform3D( CATransform3D xform );