52 lines
1.2 KiB
Mathematica
52 lines
1.2 KiB
Mathematica
|
/**
|
||
|
|
* Copyright (c) 2015-present, Facebook, Inc.
|
||
|
|
* All rights reserved.
|
||
|
|
*
|
||
|
|
* This source code is licensed under the BSD-style license found in the
|
||
|
|
* LICENSE file in the root directory of this source tree. An additional grant
|
||
|
|
* of patent rights can be found in the PATENTS file in the same directory.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#import "ARTPattern.h"
|
||
|
|
|
||
|
|
#import <React/RCTLog.h>
|
||
|
|
|
||
|
|
#import "RCTConvert+ART.h"
|
||
|
|
|
||
|
|
@implementation ARTPattern
|
||
|
|
{
|
||
|
|
CGImageRef _image;
|
||
|
|
CGRect _rect;
|
||
|
|
}
|
||
|
|
|
||
|
|
- (instancetype)initWithArray:(NSArray<id /* imagesource + numbers */> *)array
|
||
|
|
{
|
||
|
|
if ((self = [super initWithArray:array])) {
|
||
|
|
if (array.count < 6) {
|
||
|
|
RCTLogError(@"-[%@ %@] expects 6 elements, received %@",
|
||
|
|
self.class, NSStringFromSelector(_cmd), array);
|
||
|
|
return nil;
|
||
|
|
}
|
||
|
|
_image = CGImageRetain([RCTConvert CGImage:array[1]]);
|
||
|
|
_rect = [RCTConvert CGRect:array offset:2];
|
||
|
|
}
|
||
|
|
return self;
|
||
|
|
}
|
||
|
|
|
||
|
|
- (void)dealloc
|
||
|
|
{
|
||
|
|
CGImageRelease(_image);
|
||
|
|
}
|
||
|
|
|
||
|
|
// Note: This could use applyFillColor with a pattern. This could be more efficient but
|
||
|
|
// to do that, we need to calculate our own user space CTM.
|
||
|
|
|
||
|
|
- (void)paint:(CGContextRef)context
|
||
|
|
{
|
||
|
|
CGContextDrawTiledImage(context, _rect, _image);
|
||
|
|
}
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
@end
|