36 lines
1.5 KiB
Objective-C
36 lines
1.5 KiB
Objective-C
/*
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Copyright 2011 Twitter, Inc.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this work except in compliance with the License.
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You may obtain a copy of the License in the LICENSE file, or at:
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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#import "TUIImage.h"
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@class TUIColor;
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@interface TUIImage (Drawing)
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+ (TUIImage *)imageWithSize:(CGSize)size drawing:(void(^)(CGContextRef))draw; // thread safe
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- (TUIImage *)crop:(CGRect)cropRect;
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- (TUIImage *)upsideDownCrop:(CGRect)cropRect;
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- (TUIImage *)scale:(CGSize)size;
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- (TUIImage *)thumbnail:(CGSize)size;
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- (TUIImage *)pad:(CGFloat)padding; // can be negative (to crop to center)
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- (TUIImage *)roundImage:(CGFloat)radius;
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- (TUIImage *)invertedMask;
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- (TUIImage *)embossMaskWithOffset:(CGSize)offset; // subtract reciever from itself offset by 'offset', use as a mask to draw emboss
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- (TUIImage *)innerShadowWithOffset:(CGSize)offset radius:(CGFloat)radius color:(TUIColor *)color backgroundColor:(TUIColor *)backgroundColor; // 'backgroundColor' is used as the color the shadow is drawn with, it is mostly masked out, but a halo will remain, leading to artifacts unless it is close enough to the background color
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@end
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