246 lines
8.8 KiB
Objective-C
246 lines
8.8 KiB
Objective-C
//
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// KBKeyboardLayoutEngine.m
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// CustomKeyboard
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//
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#import "KBKeyboardLayoutEngine.h"
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#import "KBKeyboardLayoutConfig.h"
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#import "KBKeyboardKeyFactory.h"
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#import "KBKey.h"
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#import "KBConfig.h"
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@interface KBKeyboardLayoutEngine ()
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@property (nonatomic, strong) KBKeyboardLayoutConfig *layoutConfig;
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@end
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@implementation KBKeyboardLayoutEngine
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- (instancetype)initWithLayoutConfig:(KBKeyboardLayoutConfig *)layoutConfig {
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self = [super init];
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if (self) {
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_layoutConfig = layoutConfig;
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}
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return self;
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}
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- (CGFloat)rowSpacingForLayout:(KBKeyboardLayout *)layout {
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KBKeyboardLayoutConfig *config = self.layoutConfig;
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NSNumber *layoutSpacing = layout.rowSpacing;
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return [self kb_metricValue:layoutSpacing fallback:config.metrics.rowSpacing defaultValue:8.0];
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}
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- (CGFloat)topInsetForLayout:(KBKeyboardLayout *)layout {
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KBKeyboardLayoutConfig *config = self.layoutConfig;
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NSNumber *layoutInset = layout.topInset;
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return [self kb_metricValue:layoutInset fallback:config.metrics.topInset defaultValue:8.0];
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}
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- (CGFloat)bottomInsetForLayout:(KBKeyboardLayout *)layout {
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KBKeyboardLayoutConfig *config = self.layoutConfig;
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NSNumber *layoutInset = layout.bottomInset;
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return [self kb_metricValue:layoutInset fallback:config.metrics.bottomInset defaultValue:6.0];
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}
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- (CGFloat)rowHeightForRow:(KBKeyboardRowConfig *)row {
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KBKeyboardLayoutConfig *config = self.layoutConfig;
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NSNumber *height = row.height ?: config.metrics.keyHeight;
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CGFloat value = [self kb_numberValue:height defaultValue:40.0];
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return [self kb_scaledValue:value];
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}
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- (CGFloat)gapForRow:(KBKeyboardRowConfig *)row {
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KBKeyboardLayoutConfig *config = self.layoutConfig;
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return [self kb_metricValue:row.gap fallback:config.metrics.gap defaultValue:5.0];
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}
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- (CGFloat)insetLeftForRow:(KBKeyboardRowConfig *)row {
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KBKeyboardLayoutConfig *config = self.layoutConfig;
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return [self kb_metricValue:row.insetLeft fallback:config.metrics.edgeInset defaultValue:0.0];
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}
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- (CGFloat)insetRightForRow:(KBKeyboardRowConfig *)row {
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KBKeyboardLayoutConfig *config = self.layoutConfig;
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return [self kb_metricValue:row.insetRight fallback:config.metrics.edgeInset defaultValue:0.0];
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}
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- (CGFloat)widthForItem:(KBKeyboardRowItem *)item key:(KBKey *)key {
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CGFloat width = 0.0;
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if (item.widthValue.doubleValue > 0.0) {
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width = item.widthValue.doubleValue;
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} else if (item.width.length > 0) {
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if ([item.width.lowercaseString isEqualToString:@"flex"]) {
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return 0.0;
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}
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width = [self kb_metricWidthForKey:item.width];
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if (width <= 0.0) {
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width = item.width.doubleValue;
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}
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}
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if (width <= 0.0) {
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KBKeyboardLayoutMetrics *m = self.layoutConfig.metrics;
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if ([item.itemId hasPrefix:@"letter:"] ||
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[item.itemId hasPrefix:@"digit:"] ||
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[item.itemId hasPrefix:@"sym:"]) {
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width = m.letterWidth.doubleValue;
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} else if (key.type == KBKeyTypeReturn) {
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width = m.sendWidth.doubleValue;
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} else if (key.type == KBKeyTypeSpace) {
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return 0.0;
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} else {
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width = m.controlWidth.doubleValue;
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}
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}
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if (width <= 0.0) {
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if ([item.itemId hasPrefix:@"letter:"] ||
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[item.itemId hasPrefix:@"digit:"] ||
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[item.itemId hasPrefix:@"sym:"]) {
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width = 32.0;
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} else if (key.type == KBKeyTypeReturn) {
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width = 88.0;
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} else if (key.type == KBKeyTypeSpace) {
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return 0.0;
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} else {
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width = 41.0;
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}
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}
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return width > 0.0 ? [self kb_scaledValue:width] : 0.0;
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}
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- (CGFloat)fontSizeForItem:(KBKeyboardRowItem *)item key:(KBKey *)key {
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NSString *fontKey = nil;
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if ([item.itemId hasPrefix:@"letter:"]) {
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fontKey = @"letter";
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} else if ([item.itemId hasPrefix:@"digit:"]) {
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fontKey = @"digit";
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} else if ([item.itemId hasPrefix:@"sym:"]) {
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fontKey = @"symbol";
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} else {
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KBKeyboardKeyDef *def = [self.layoutConfig keyDefForIdentifier:item.itemId];
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fontKey = def.font;
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}
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if (fontKey.length == 0) {
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switch (key.type) {
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case KBKeyTypeModeChange:
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case KBKeyTypeSymbolsToggle:
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fontKey = @"mode";
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break;
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case KBKeyTypeSpace:
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fontKey = @"space";
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break;
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case KBKeyTypeReturn:
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fontKey = @"send";
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break;
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default:
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fontKey = @"symbol";
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break;
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}
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}
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return [self fontSizeForFontKey:fontKey];
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}
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- (CGFloat)fontSizeForFontKey:(NSString *)fontKey {
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KBKeyboardLayoutFonts *fonts = self.layoutConfig.fonts;
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CGFloat size = 0.0;
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if ([fontKey isEqualToString:@"letter"]) { size = fonts.letter.doubleValue; }
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else if ([fontKey isEqualToString:@"digit"]) { size = fonts.digit.doubleValue; }
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else if ([fontKey isEqualToString:@"symbol"]) { size = fonts.symbol.doubleValue; }
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else if ([fontKey isEqualToString:@"mode"]) { size = fonts.mode.doubleValue; }
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else if ([fontKey isEqualToString:@"space"]) { size = fonts.space.doubleValue; }
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else if ([fontKey isEqualToString:@"send"]) { size = fonts.send.doubleValue; }
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if (size <= 0.0) { size = 18.0; }
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return [self kb_scaledValue:size];
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}
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/// 计算跨行统一字符键宽度：遍历每行各自的 insets/gap/非字符键宽度，
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/// 取各行可用字符键宽度的最小值，确保所有行都能容纳。
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/// 当各行有效宽度相同时返回 0（无需统一）。
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- (CGFloat)calculateUniformCharKeyWidthForRows:(NSArray<KBKeyboardRowConfig *> *)rows
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keyFactory:(KBKeyboardKeyFactory *)keyFactory
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shiftOn:(BOOL)shiftOn {
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CGFloat minWidth = CGFLOAT_MAX;
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CGFloat maxWidth = 0.0;
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BOOL hasCharRow = NO;
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CGFloat containerWidth = KBScreenWidth();
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for (KBKeyboardRowConfig *row in rows) {
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if (row.segments) { continue; } // 跳过分段行
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NSArray<KBKeyboardRowItem *> *items = [row resolvedItems];
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NSUInteger charCount = 0;
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CGFloat nonCharWidth = 0.0;
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for (KBKeyboardRowItem *item in items) {
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BOOL isChar = [item.itemId hasPrefix:@"letter:"] ||
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[item.itemId hasPrefix:@"digit:"] ||
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[item.itemId hasPrefix:@"sym:"];
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if (isChar) {
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charCount++;
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} else {
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KBKey *key = [keyFactory keyForItemId:item.itemId shiftOn:shiftOn];
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CGFloat w = [self widthForItem:item key:key];
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nonCharWidth += w;
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}
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}
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if (charCount == 0) { continue; } // 跳过无字符键的行（如底部控制行）
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hasCharRow = YES;
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// 使用每行各自配置的 insets 和 gap
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CGFloat gap = [self gapForRow:row];
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CGFloat insetLeft = [self insetLeftForRow:row];
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CGFloat insetRight = [self insetRightForRow:row];
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CGFloat totalGaps = (items.count > 1) ? (items.count - 1) * gap : 0.0;
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CGFloat available = containerWidth - insetLeft - insetRight - totalGaps - nonCharWidth;
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CGFloat width = available / charCount;
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if (width < minWidth) { minWidth = width; }
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if (width > maxWidth) { maxWidth = width; }
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}
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if (!hasCharRow || minWidth <= 0.0 || minWidth >= CGFLOAT_MAX) { return 0.0; }
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// 各行有效宽度相同时无需统一
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if (fabs(maxWidth - minWidth) < 0.5) { return 0.0; }
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return minWidth;
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}
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#pragma mark - Helpers
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- (CGFloat)kb_scaledValue:(CGFloat)designValue {
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if (self.layoutConfig) {
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return [self.layoutConfig scaledValue:designValue];
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}
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return KBFit(designValue);
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}
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- (CGFloat)kb_numberValue:(NSNumber *)value defaultValue:(CGFloat)defaultValue {
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if ([value isKindOfClass:[NSNumber class]]) {
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return value.doubleValue;
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}
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return defaultValue;
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}
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- (CGFloat)kb_metricValue:(NSNumber *)value fallback:(NSNumber *)fallback defaultValue:(CGFloat)defaultValue {
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CGFloat v = [self kb_numberValue:value defaultValue:-1.0];
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if (v < 0.0) {
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v = [self kb_numberValue:fallback defaultValue:defaultValue];
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}
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if (v < 0.0) {
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v = defaultValue;
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}
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return [self kb_scaledValue:v];
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}
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- (CGFloat)kb_metricWidthForKey:(NSString *)key {
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KBKeyboardLayoutMetrics *m = self.layoutConfig.metrics;
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if ([key isEqualToString:@"letterWidth"]) { return m.letterWidth.doubleValue; }
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if ([key isEqualToString:@"controlWidth"]) { return m.controlWidth.doubleValue; }
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if ([key isEqualToString:@"sendWidth"]) { return m.sendWidth.doubleValue; }
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if ([key isEqualToString:@"symbolsWideWidth"]) { return m.symbolsWideWidth.doubleValue; }
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if ([key isEqualToString:@"symbolsSideWidth"]) { return m.symbolsSideWidth.doubleValue; }
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return 0.0;
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}
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@end
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