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Add image-modification support to ASImageNode.

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This commit is contained in:
Nadine Salter
2014-09-08 17:09:14 -07:00
parent 4da9912e2c
commit 0053e00a52
2 changed files with 20 additions and 2 deletions
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14
AsyncDisplayKit/ASImageNode.mm
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@@ -26,13 +26,14 @@
@property (nonatomic, retain) UIColor *backgroundColor;
@property (nonatomic, assign) UIViewContentMode contentMode;
@property (nonatomic, assign) CGRect cropRect;
@property (nonatomic, copy) asimagenode_modification_block_t imageModificationBlock;
@end
// TODO: eliminate explicit parameters with a set of keys copied from the node
@implementation _ASImageNodeDrawParameters
- (id)initWithCrop:(BOOL)cropEnabled opaque:(BOOL)opaque image:(UIImage *)image bounds:(CGRect)bounds contentsScale:(CGFloat)contentsScale backgroundColor:(UIColor *)backgroundColor tint:(ASImageNodeTint)tint contentMode:(UIViewContentMode)contentMode cropRect:(CGRect)cropRect
- (id)initWithCrop:(BOOL)cropEnabled opaque:(BOOL)opaque image:(UIImage *)image bounds:(CGRect)bounds contentsScale:(CGFloat)contentsScale backgroundColor:(UIColor *)backgroundColor tint:(ASImageNodeTint)tint contentMode:(UIViewContentMode)contentMode cropRect:(CGRect)cropRect imageModificationBlock:(asimagenode_modification_block_t)imageModificationBlock
{
self = [self init];
if (!self) return nil;
@@ -46,6 +47,7 @@
_tint = tint;
_contentMode = contentMode;
_cropRect = cropRect;
_imageModificationBlock = [imageModificationBlock copy];
return self;
}
@@ -54,6 +56,7 @@
{
[_image release];
[_backgroundColor release];
[_imageModificationBlock release];
[super dealloc];
}
@@ -103,6 +106,7 @@
{
[_displayCompletionBlock release];
[_image release];
[_imageModificationBlock release];
[super dealloc];
}
@@ -163,7 +167,9 @@
backgroundColor:self.backgroundColor
tint:self.tint
contentMode:self.contentMode
cropRect:self.cropRect] autorelease];
cropRect:self.cropRect
imageModificationBlock:self.imageModificationBlock
] autorelease];
}
+ (UIImage *)displayWithParameters:(_ASImageNodeDrawParameters *)parameters isCancelled:(asdisplaynode_iscancelled_block_t)isCancelled
@@ -247,6 +253,10 @@
UIGraphicsEndImageContext();
if (parameters.imageModificationBlock != NULL) {
result = parameters.imageModificationBlock(result);
}
if (stretchable) {
return [image resizableImageWithCapInsets:image.capInsets resizingMode:image.resizingMode];
}