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136 lines
3.1 KiB
Objective-C
136 lines
3.1 KiB
Objective-C
//
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// Copyright (c) 2018 Open Whisper Systems. All rights reserved.
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//
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#import "UIFont+OWS.h"
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NS_ASSUME_NONNULL_BEGIN
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@implementation UIFont (OWS)
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+ (UIFont *)ows_thinFontWithSize:(CGFloat)size
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{
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return [UIFont systemFontOfSize:size weight:UIFontWeightThin];
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}
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+ (UIFont *)ows_lightFontWithSize:(CGFloat)size
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{
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return [UIFont systemFontOfSize:size weight:UIFontWeightLight];
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}
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+ (UIFont *)ows_regularFontWithSize:(CGFloat)size
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{
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return [UIFont systemFontOfSize:size weight:UIFontWeightRegular];
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}
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+ (UIFont *)ows_mediumFontWithSize:(CGFloat)size
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{
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return [UIFont systemFontOfSize:size weight:UIFontWeightMedium];
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}
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+ (UIFont *)ows_boldFontWithSize:(CGFloat)size
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{
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return [UIFont boldSystemFontOfSize:size];
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}
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#pragma mark - Icon Fonts
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+ (UIFont *)ows_fontAwesomeFont:(CGFloat)size
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{
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return [UIFont fontWithName:@"FontAwesome" size:size];
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}
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+ (UIFont *)ows_dripIconsFont:(CGFloat)size
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{
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return [UIFont fontWithName:@"dripicons-v2" size:size];
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}
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+ (UIFont *)ows_elegantIconsFont:(CGFloat)size
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{
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return [UIFont fontWithName:@"ElegantIcons" size:size];
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}
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#pragma mark - Dynamic Type
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+ (UIFont *)ows_dynamicTypeTitle1Font
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{
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return [UIFont preferredFontForTextStyle:UIFontTextStyleTitle1];
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}
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+ (UIFont *)ows_dynamicTypeTitle2Font
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{
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return [UIFont preferredFontForTextStyle:UIFontTextStyleTitle2];
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}
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+ (UIFont *)ows_dynamicTypeTitle3Font
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{
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return [UIFont preferredFontForTextStyle:UIFontTextStyleTitle3];
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}
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+ (UIFont *)ows_dynamicTypeHeadlineFont
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{
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return [UIFont preferredFontForTextStyle:UIFontTextStyleHeadline];
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}
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+ (UIFont *)ows_dynamicTypeBodyFont
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{
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return [UIFont preferredFontForTextStyle:UIFontTextStyleBody];
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}
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+ (UIFont *)ows_dynamicTypeSubheadlineFont
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{
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return [UIFont preferredFontForTextStyle:UIFontTextStyleSubheadline];
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}
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+ (UIFont *)ows_dynamicTypeFootnoteFont
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{
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return [UIFont preferredFontForTextStyle:UIFontTextStyleFootnote];
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}
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+ (UIFont *)ows_dynamicTypeCaption1Font
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{
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return [UIFont preferredFontForTextStyle:UIFontTextStyleCaption1];
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}
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+ (UIFont *)ows_dynamicTypeCaption2Font
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{
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return [UIFont preferredFontForTextStyle:UIFontTextStyleCaption2];
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}
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#pragma mark - Styles
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- (UIFont *)ows_italic
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{
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return [self styleWithSymbolicTraits:UIFontDescriptorTraitItalic];
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}
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- (UIFont *)ows_bold
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{
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return [self styleWithSymbolicTraits:UIFontDescriptorTraitBold];
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}
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- (UIFont *)styleWithSymbolicTraits:(UIFontDescriptorSymbolicTraits)symbolicTraits
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{
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UIFontDescriptor *fontDescriptor = [self.fontDescriptor fontDescriptorWithSymbolicTraits:symbolicTraits];
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UIFont *font = [UIFont fontWithDescriptor:fontDescriptor size:0];
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OWSAssert(font);
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return font ?: self;
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}
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- (UIFont *)ows_mediumWeight
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{
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// The recommended approach of deriving "medium" weight fonts for dynamic
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// type fonts is:
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//
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// [UIFontDescriptor fontDescriptorByAddingAttributes:...]
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//
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// But this doesn't seem to work in practice on iOS 11 using UIFontWeightMedium.
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UIFont *derivedFont = [UIFont systemFontOfSize:self.pointSize weight:UIFontWeightMedium];
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return derivedFont;
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}
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@end
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NS_ASSUME_NONNULL_END
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