react-native/React/Views/RCTFont.h

51 lines
1.7 KiB
Objective-C

/**
* 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 <Foundation/Foundation.h>
#import <React/RCTConvert.h>
typedef UIFont *(^RCTFontHandler)(CGFloat fontSize, NSString *fontWeightDescription);
/**
* React Native will use the System font for rendering by default. If you want to
* provide a different base font, use this override. The font weight supplied to your
* handler will be one of "ultralight", "thin", "light", "regular", "medium",
* "semibold", "extrabold", "bold", "heavy", or "black".
*/
RCT_EXTERN void RCTSetDefaultFontHandler(RCTFontHandler handler);
@interface RCTFont : NSObject
/**
* Update a font with a given font-family, size, weight and style.
* If parameters are not specified, they'll be kept as-is.
* If font is nil, the default system font of size 14 will be used.
*/
+ (UIFont *)updateFont:(UIFont *)font
withFamily:(NSString *)family
size:(NSNumber *)size
weight:(NSString *)weight
style:(NSString *)style
variant:(NSArray<NSString *> *)variant
scaleMultiplier:(CGFloat)scaleMultiplier;
+ (UIFont *)updateFont:(UIFont *)font withFamily:(NSString *)family;
+ (UIFont *)updateFont:(UIFont *)font withSize:(NSNumber *)size;
+ (UIFont *)updateFont:(UIFont *)font withWeight:(NSString *)weight;
+ (UIFont *)updateFont:(UIFont *)font withStyle:(NSString *)style;
@end
@interface RCTConvert (RCTFont)
+ (UIFont *)UIFont:(id)json;
@end