This repository has been archived on 2024-07-22. You can view files and clone it, but cannot push or open issues or pull requests.
Doric/doric-iOS/Pod/Classes/Shader/DoricTextNode.m
2020-04-13 17:44:15 +08:00

160 lines
6.2 KiB
Objective-C

/*
* Copyright [2019] [Doric.Pub]
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
//
// DoricTextNode.m
// Doric
//
// Created by pengfei.zhou on 2019/7/31.
//
#import "DoricTextNode.h"
#import "DoricUtil.h"
#import "DoricGroupNode.h"
#import "Doric.h"
@interface DoricTextView : UILabel
@end
@implementation DoricTextView
- (void)drawTextInRect:(CGRect)rect {
[super drawTextInRect:UIEdgeInsetsInsetRect(
rect,
UIEdgeInsetsMake(
self.doricLayout.paddingTop,
self.doricLayout.paddingLeft,
self.doricLayout.paddingBottom,
self.doricLayout.paddingRight))];
}
@end
@interface DoricTextNode ()
@property(nonatomic, strong) NSMutableParagraphStyle *paragraphStyle;
@property(nonatomic, assign) NSNumber *underline;
@property(nonatomic, assign) NSNumber *strikethrough;
@end
@implementation DoricTextNode
- (UILabel *)build {
return [[[DoricTextView alloc] init] also:^(DoricTextView *it) {
it.textAlignment = NSTextAlignmentCenter;
}];
}
- (void)blendView:(UILabel *)view forPropName:(NSString *)name propValue:(id)prop {
if ([name isEqualToString:@"text"]) {
view.text = prop;
if (self.paragraphStyle) {
[self reloadParagraphStyle];
}
} else if ([name isEqualToString:@"textSize"]) {
UIFont *font = view.font;
if (font) {
view.font = [view.font fontWithSize:[(NSNumber *) prop floatValue]];
} else {
view.font = [UIFont systemFontOfSize:[(NSNumber *) prop floatValue]];
}
} else if ([name isEqualToString:@"textColor"]) {
view.textColor = DoricColor(prop);
} else if ([name isEqualToString:@"textAlignment"]) {
DoricGravity gravity = (DoricGravity) [(NSNumber *) prop integerValue];
NSTextAlignment alignment = NSTextAlignmentCenter;
if ((gravity & DoricGravityLeft) == DoricGravityLeft) {
alignment = NSTextAlignmentLeft;
} else if ((gravity & DoricGravityRight) == DoricGravityRight) {
alignment = NSTextAlignmentRight;
}
if (self.paragraphStyle) {
self.paragraphStyle.alignment = alignment;
NSMutableAttributedString *attributedString = [[NSMutableAttributedString alloc] initWithString:view.text];
[attributedString addAttribute:NSParagraphStyleAttributeName value:self.paragraphStyle range:NSMakeRange(0, [attributedString length])];
view.attributedText = attributedString;
} else {
view.textAlignment = alignment;
}
} else if ([name isEqualToString:@"maxLines"]) {
view.numberOfLines = [prop integerValue];
} else if ([name isEqualToString:@"fontStyle"]) {
UIFont *font = view.font;
if (!font) {
font = [UIFont systemFontOfSize:[UIFont systemFontSize]];
}
UIFontDescriptor *fontDescriptor = nil;
if ([@"bold" isEqualToString:prop]) {
fontDescriptor = [font.fontDescriptor fontDescriptorWithSymbolicTraits:UIFontDescriptorTraitBold];
} else if ([@"italic" isEqualToString:prop]) {
fontDescriptor = [font.fontDescriptor fontDescriptorWithSymbolicTraits:UIFontDescriptorTraitItalic];
} else if ([@"bold_italic" isEqualToString:prop]) {
fontDescriptor = [font.fontDescriptor fontDescriptorWithSymbolicTraits:UIFontDescriptorTraitBold | UIFontDescriptorTraitItalic];
}
if (fontDescriptor) {
font = [UIFont fontWithDescriptor:fontDescriptor size:0];
}
view.font = font;
} else if ([name isEqualToString:@"maxWidth"]) {
view.doricLayout.maxWidth = [prop floatValue];
} else if ([name isEqualToString:@"maxHeight"]) {
view.doricLayout.maxHeight = [prop floatValue];
} else if ([name isEqualToString:@"font"]) {
NSString *iconfont = prop;
UIFont *font = [UIFont fontWithName:iconfont size:view.font.pointSize];
view.font = font;
} else if ([name isEqualToString:@"lineSpacing"]) {
[[self ensureParagraphStyle] also:^(NSMutableParagraphStyle *it) {
[it setLineSpacing:[prop floatValue]];
[self reloadParagraphStyle];
}];
} else if ([name isEqualToString:@"underline"]) {
[[self ensureParagraphStyle] also:^(NSMutableParagraphStyle *it) {
self.underline = prop;
[self reloadParagraphStyle];
}];
} else if ([name isEqualToString:@"strikethrough"]) {
[[self ensureParagraphStyle] also:^(NSMutableParagraphStyle *it) {
self.strikethrough = prop;
[self reloadParagraphStyle];
}];
} else {
[super blendView:view forPropName:name propValue:prop];
}
}
- (NSMutableParagraphStyle *)ensureParagraphStyle {
if (self.paragraphStyle == nil) {
self.paragraphStyle = [NSMutableParagraphStyle new];
self.paragraphStyle.alignment = self.view.textAlignment;
}
return self.paragraphStyle;
}
- (void)reloadParagraphStyle {
NSString *labelText = self.view.text ?: @"";
NSMutableAttributedString *attributedString = [[NSMutableAttributedString alloc] initWithString:labelText];
[attributedString addAttribute:NSParagraphStyleAttributeName value:self.paragraphStyle range:NSMakeRange(0, [labelText length])];
if (self.underline) {
[attributedString addAttribute:NSUnderlineStyleAttributeName value:self.underline range:NSMakeRange(0, [labelText length])];
}
if (self.strikethrough) {
[attributedString addAttribute:NSStrikethroughStyleAttributeName value:self.strikethrough range:NSMakeRange(0, [labelText length])];
}
self.view.attributedText = attributedString;
}
- (void)blend:(NSDictionary *)props {
[super blend:props];
[self.view.superview setNeedsLayout];
}
@end