107 lines
3.6 KiB
Objective-C
107 lines
3.6 KiB
Objective-C
//
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// KBKeyButton.m
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// CustomKeyboard
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//
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#import "KBKeyButton.h"
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#import "KBKey.h"
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#import "KBSkinManager.h"
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@interface KBKeyButton ()
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@property (nonatomic, strong) UIImageView *iconView;
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@end
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@implementation KBKeyButton
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- (instancetype)initWithFrame:(CGRect)frame {
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if (self = [super initWithFrame:frame]) {
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[self applyDefaultStyle];
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}
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return self;
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}
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- (void)applyDefaultStyle {
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self.titleLabel.font = [UIFont systemFontOfSize:18 weight:UIFontWeightSemibold];
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KBSkinTheme *t = [KBSkinManager shared].current;
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[self setTitleColor:t.keyTextColor forState:UIControlStateNormal];
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[self setTitleColor:t.keyTextColor forState:UIControlStateHighlighted];
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self.backgroundColor = t.keyBackground;
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self.layer.cornerRadius = 6.0; // 圆角
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self.layer.masksToBounds = NO;
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self.layer.shadowColor = [UIColor colorWithWhite:0 alpha:0.1].CGColor; // 阴影效果
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self.layer.shadowOpacity = 1.0;
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self.layer.shadowOffset = CGSizeMake(0, 1);
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self.layer.shadowRadius = 1.5;
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[self refreshStateAppearance];
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// 懒创建图标视图，用于后续皮肤按键小图标展示
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if (!self.iconView) {
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UIImageView *iv = [[UIImageView alloc] initWithFrame:CGRectZero];
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// 作为按键的整块皮肤背景，铺满整个按钮区域
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iv.contentMode = UIViewContentModeScaleAspectFill;
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iv.clipsToBounds = YES;
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iv.translatesAutoresizingMaskIntoConstraints = NO;
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[self addSubview:iv];
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// 让皮肤图片撑满整个按钮
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[NSLayoutConstraint activateConstraints:@[
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[iv.topAnchor constraintEqualToAnchor:self.topAnchor],
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[iv.bottomAnchor constraintEqualToAnchor:self.bottomAnchor],
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[iv.leadingAnchor constraintEqualToAnchor:self.leadingAnchor],
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[iv.trailingAnchor constraintEqualToAnchor:self.trailingAnchor],
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]];
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self.iconView = iv;
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// 文字保持居中；若需要显示文字，则覆盖在皮肤图片之上
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self.titleEdgeInsets = UIEdgeInsetsZero;
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[self bringSubviewToFront:self.titleLabel];
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}
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}
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- (void)setKey:(KBKey *)key {
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_key = key;
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// 每次切换按键模型时，根据皮肤刷新一次图标和文字显隐
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[self applyThemeForCurrentKey];
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}
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- (void)setHighlighted:(BOOL)highlighted {
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[super setHighlighted:highlighted];
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// 简单按压反馈：选中态不改变透明度，避免和高亮态冲突
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if (self.isSelected) {
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self.alpha = 1.0;
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} else {
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self.alpha = highlighted ? 0.2 : 1.0;
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}
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}
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- (void)setSelected:(BOOL)selected {
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[super setSelected:selected];
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[self refreshStateAppearance];
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}
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- (void)refreshStateAppearance {
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// 选中态用于 Shift/CapsLock 等特殊按键的高亮显示
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KBSkinTheme *t = [KBSkinManager shared].current;
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if (self.isSelected) {
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self.backgroundColor = t.keyHighlightBackground ?: t.keyBackground;
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} else {
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self.backgroundColor = t.keyBackground;
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}
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}
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- (void)applyThemeForCurrentKey {
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// 依据皮肤决定是否显示文字
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NSString *identifier = self.key.identifier;
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BOOL hideText = [[KBSkinManager shared] shouldHideKeyTextForIdentifier:identifier];
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self.titleLabel.hidden = hideText;
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// 根据皮肤映射加载图标（若有），支持大小写变体：
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// - identifier: 逻辑按键标识（如 letter_q）
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// - caseVariant: 0/1/2 => 无变体/小写/大写
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NSInteger variant = (NSInteger)self.key.caseVariant;
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UIImage *iconImg = [[KBSkinManager shared] iconImageForKeyIdentifier:identifier caseVariant:variant];
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self.iconView.image = iconImg;
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self.iconView.hidden = (iconImg == nil);
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}
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@end
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