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543 行
27 KiB
543 行
27 KiB
using System;
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using System.Collections.Generic;
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using System.Linq;
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using Unity.UIWidgets.foundation;
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using Unity.UIWidgets.ui;
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namespace Unity.UIWidgets.painting {
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public class TextStyle : Diagnosticable, IEquatable<TextStyle> {
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public static readonly float _defaultFontSize = 14.0f;
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public readonly bool inherit;
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public readonly Color color;
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public readonly Color backgroundColor;
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public readonly float? fontSize;
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public readonly FontWeight fontWeight;
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public readonly FontStyle? fontStyle;
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public readonly float? letterSpacing;
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public readonly float? wordSpacing;
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public readonly TextBaseline? textBaseline;
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public readonly float? height;
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public readonly TextDecoration decoration;
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public readonly Color decorationColor;
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public readonly TextDecorationStyle? decorationStyle;
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public readonly float? decorationThickness;
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public readonly Paint foreground;
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public readonly Paint background;
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public readonly string fontFamily;
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public readonly List<BoxShadow> shadows;
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public List<string> fontFamilyFallback {
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get { return this._fontFamilyFallback; }
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}
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readonly List<string> _fontFamilyFallback;
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public readonly string debugLabel;
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const string _kDefaultDebugLabel = "unknown";
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const string _kColorForegroundWarning = "Cannot provide both a color and a foreground\n" +
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"The color argument is just a shorthand for 'foreground: new Paint()..color = color'.";
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const string _kColorBackgroundWarning = "Cannot provide both a backgroundColor and a background\n" +
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"The backgroundColor argument is just a shorthand for 'background: new Paint()..color = color'.";
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public TextStyle(bool inherit = true,
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Color color = null,
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Color backgroundColor = null,
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float? fontSize = null,
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FontWeight fontWeight = null,
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FontStyle? fontStyle = null,
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float? letterSpacing = null,
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float? wordSpacing = null,
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TextBaseline? textBaseline = null,
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float? height = null,
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Paint foreground = null,
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Paint background = null,
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TextDecoration decoration = null,
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Color decorationColor = null,
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TextDecorationStyle? decorationStyle = null,
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float? decorationThickness = null,
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string fontFamily = null,
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List<string> fontFamilyFallback = null,
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List<BoxShadow> shadows = null,
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string debugLabel = null) {
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D.assert(color == null || foreground == null, () => _kColorForegroundWarning);
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D.assert(backgroundColor == null || background == null, () => _kColorBackgroundWarning);
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this.inherit = inherit;
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this.color = color;
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this.backgroundColor = backgroundColor;
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this.fontSize = fontSize;
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this.fontWeight = fontWeight;
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this.fontStyle = fontStyle;
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this.letterSpacing = letterSpacing;
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this.wordSpacing = wordSpacing;
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this.textBaseline = textBaseline;
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this.height = height;
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this.decoration = decoration;
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this.decorationColor = decorationColor;
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this.decorationStyle = decorationStyle;
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this.decorationThickness = decorationThickness;
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this.fontFamily = fontFamily;
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this._fontFamilyFallback = fontFamilyFallback;
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this.debugLabel = debugLabel;
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this.foreground = foreground;
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this.background = background;
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this.shadows = shadows;
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}
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public RenderComparison compareTo(TextStyle other) {
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if (this.inherit != other.inherit || this.fontFamily != other.fontFamily ||
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this.fontSize != other.fontSize || this.fontWeight != other.fontWeight ||
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this.fontStyle != other.fontStyle || this.letterSpacing != other.letterSpacing ||
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this.wordSpacing != other.wordSpacing || this.textBaseline != other.textBaseline ||
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this.height != other.height || this.background != other.background ||
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this.shadows.equalsList(other.shadows)) {
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return RenderComparison.layout;
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}
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if (this.color != other.color || this.decoration != other.decoration ||
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this.decorationColor != other.decorationColor ||
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this.decorationStyle != other.decorationStyle) {
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return RenderComparison.paint;
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}
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return RenderComparison.identical;
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}
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public ParagraphStyle getParagraphStyle(TextAlign textAlign,
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TextDirection textDirection, string ellipsis, int? maxLines, float textScaleFactor = 1.0f) {
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return new ParagraphStyle(
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textAlign, textDirection, this.fontWeight, this.fontStyle,
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maxLines, (this.fontSize ?? _defaultFontSize) * textScaleFactor, this.fontFamily, this.height,
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ellipsis
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);
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}
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public TextStyle apply(
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Color color = null,
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Color backgroundColor = null,
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TextDecoration decoration = null,
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Color decorationColor = null,
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TextDecorationStyle? decorationStyle = null,
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float decorationThicknessFactor = 1.0f,
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float decorationThicknessDelta = 0.0f,
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string fontFamily = null,
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List<string> fontFamilyFallback = null,
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List<BoxShadow> shadows = null,
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float fontSizeFactor = 1.0f,
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float fontSizeDelta = 0.0f,
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int fontWeightDelta = 0,
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float letterSpacingFactor = 1.0f,
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float letterSpacingDelta = 0.0f,
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float wordSpacingFactor = 1.0f,
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float wordSpacingDelta = 0.0f,
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float heightFactor = 1.0f,
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float heightDelta = 0.0f
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) {
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D.assert(this.fontSize != null || (fontSizeFactor == 1.0f && fontSizeDelta == 0.0f));
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D.assert(this.fontWeight != null || fontWeightDelta == 0.0f);
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D.assert(this.letterSpacing != null || (letterSpacingFactor == 1.0f && letterSpacingDelta == 0.0f));
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D.assert(this.wordSpacing != null || (wordSpacingFactor == 1.0f && wordSpacingDelta == 0.0f));
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D.assert(this.height != null || (heightFactor == 1.0f && heightDelta == 0.0f));
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D.assert(this.decorationThickness != null ||
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(decorationThicknessFactor == 1.0f && decorationThicknessDelta == 0.0f));
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string modifiedDebugLabel = "";
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D.assert(() => {
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if (this.debugLabel != null) {
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modifiedDebugLabel = this.debugLabel + ".apply";
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}
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return true;
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});
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return new TextStyle(
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inherit: this.inherit,
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color: this.foreground == null ? color ?? this.color : null,
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backgroundColor: this.background == null ? backgroundColor ?? this.backgroundColor : null,
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fontFamily: fontFamily ?? this.fontFamily,
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fontFamilyFallback: fontFamilyFallback ?? this.fontFamilyFallback,
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fontSize: this.fontSize == null ? null : this.fontSize * fontSizeFactor + fontSizeDelta,
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fontWeight: this.fontWeight == null ? null : this.fontWeight,
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fontStyle: this.fontStyle,
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letterSpacing: this.letterSpacing == null
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? null
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: this.letterSpacing * letterSpacingFactor + letterSpacingDelta,
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wordSpacing: this.wordSpacing == null ? null : this.wordSpacing * wordSpacingFactor + wordSpacingDelta,
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textBaseline: this.textBaseline,
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height: this.height == null ? null : this.height * heightFactor + heightDelta,
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foreground: this.foreground,
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background: this.background,
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decoration: decoration ?? this.decoration,
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decorationColor: decorationColor ?? this.decorationColor,
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decorationStyle: decorationStyle ?? this.decorationStyle,
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decorationThickness: this.decorationThickness == null
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? null
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: this.decorationThickness * decorationThicknessFactor + decorationThicknessDelta,
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shadows: shadows ?? this.shadows,
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debugLabel: modifiedDebugLabel
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);
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}
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public TextStyle merge(TextStyle other) {
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if (other == null) {
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return this;
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}
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if (!other.inherit) {
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return other;
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}
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string mergedDebugLabel = null;
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D.assert(() => {
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if (other.debugLabel != null || this.debugLabel != null) {
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mergedDebugLabel =
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$"({this.debugLabel ?? _kDefaultDebugLabel}).merge({other.debugLabel ?? _kDefaultDebugLabel})";
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}
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return true;
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});
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return this.copyWith(
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color: other.color,
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backgroundColor: other.backgroundColor,
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fontFamily: other.fontFamily,
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fontFamilyFallback: other.fontFamilyFallback,
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fontSize: other.fontSize,
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fontWeight: other.fontWeight,
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fontStyle: other.fontStyle,
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letterSpacing: other.letterSpacing,
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wordSpacing: other.wordSpacing,
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textBaseline: other.textBaseline,
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height: other.height,
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foreground: other.foreground,
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background: other.background,
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decoration: other.decoration,
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decorationColor: other.decorationColor,
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decorationStyle: other.decorationStyle,
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decorationThickness: other.decorationThickness,
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shadows: other.shadows,
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debugLabel: mergedDebugLabel
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);
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}
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public TextStyle copyWith(
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bool? inherit = null,
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Color color = null,
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Color backgroundColor = null,
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string fontFamily = null,
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List<string> fontFamilyFallback = null,
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float? fontSize = null,
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FontWeight fontWeight = null,
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FontStyle? fontStyle = null,
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float? letterSpacing = null,
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float? wordSpacing = null,
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TextBaseline? textBaseline = null,
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float? height = null,
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Paint foreground = null,
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Paint background = null,
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TextDecoration decoration = null,
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Color decorationColor = null,
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TextDecorationStyle? decorationStyle = null,
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float? decorationThickness = null,
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List<BoxShadow> shadows = null,
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string debugLabel = null) {
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D.assert(color == null || foreground == null, () => _kColorForegroundWarning);
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D.assert(backgroundColor == null || background == null, () => _kColorBackgroundWarning);
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string newDebugLabel = null;
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D.assert(() => {
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if (this.debugLabel != null) {
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newDebugLabel = debugLabel ?? $"({this.debugLabel}).copyWith";
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}
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return true;
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});
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return new TextStyle(
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inherit: inherit ?? this.inherit,
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color: this.foreground == null && foreground == null ? color ?? this.color : null,
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backgroundColor: this.background == null && background == null ? color ?? this.color : null,
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fontFamily: fontFamily ?? this.fontFamily,
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fontFamilyFallback: fontFamilyFallback ?? this.fontFamilyFallback,
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fontSize: fontSize ?? this.fontSize,
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fontWeight: fontWeight ?? this.fontWeight,
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fontStyle: fontStyle ?? this.fontStyle,
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letterSpacing: letterSpacing ?? this.letterSpacing,
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wordSpacing: wordSpacing ?? this.wordSpacing,
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textBaseline: textBaseline ?? this.textBaseline,
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height: height ?? this.height,
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decoration: decoration ?? this.decoration,
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decorationColor: decorationColor ?? this.decorationColor,
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decorationStyle: decorationStyle ?? this.decorationStyle,
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decorationThickness: decorationThickness ?? this.decorationThickness,
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foreground: foreground ?? this.foreground,
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background: background ?? this.background,
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shadows: shadows ?? this.shadows,
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debugLabel: newDebugLabel
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);
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}
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public static TextStyle lerp(TextStyle a, TextStyle b, float t) {
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D.assert(a == null || b == null || a.inherit == b.inherit);
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if (a == null && b == null) {
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return null;
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}
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string lerpDebugLabel = "";
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D.assert(() => {
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lerpDebugLabel = "lerp" + (a?.debugLabel ?? _kDefaultDebugLabel) + "-" + t + "-" +
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(b?.debugLabel ?? _kDefaultDebugLabel);
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return true;
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});
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if (a == null) {
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return new TextStyle(
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inherit: b.inherit,
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color: Color.lerp(null, b.color, t),
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backgroundColor: Color.lerp(null, b.backgroundColor, t),
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fontFamily: t < 0.5f ? null : b.fontFamily,
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fontFamilyFallback: t < 0.5f ? null : b.fontFamilyFallback,
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fontSize: t < 0.5f ? null : b.fontSize,
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fontWeight: t < 0.5f ? null : b.fontWeight,
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fontStyle: t < 0.5f ? null : b.fontStyle,
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letterSpacing: t < 0.5f ? null : b.letterSpacing,
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wordSpacing: t < 0.5f ? null : b.wordSpacing,
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textBaseline: t < 0.5f ? null : b.textBaseline,
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height: t < 0.5f ? null : b.height,
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foreground: t < 0.5f ? null : b.foreground,
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background: t < 0.5f ? null : b.background,
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decoration: t < 0.5f ? null : b.decoration,
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decorationColor: Color.lerp(null, b.decorationColor, t),
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decorationStyle: t < 0.5f ? null : b.decorationStyle,
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decorationThickness: t < 0.5f ? null : b.decorationThickness,
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shadows: t < 0.5f ? null : b.shadows,
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debugLabel: lerpDebugLabel
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);
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}
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if (b == null) {
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return new TextStyle(
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inherit: a.inherit,
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color: Color.lerp(a.color, null, t),
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backgroundColor: Color.lerp(a.backgroundColor, null, t),
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fontFamily: t < 0.5f ? a.fontFamily : null,
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fontFamilyFallback: t < 0.5f ? a.fontFamilyFallback : null,
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fontSize: t < 0.5f ? a.fontSize : null,
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fontWeight: t < 0.5f ? a.fontWeight : null,
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fontStyle: t < 0.5f ? a.fontStyle : null,
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letterSpacing: t < 0.5f ? a.letterSpacing : null,
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wordSpacing: t < 0.5f ? a.wordSpacing : null,
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textBaseline: t < 0.5f ? a.textBaseline : null,
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height: t < 0.5f ? a.height : null,
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foreground: t < 0.5f ? a.foreground : null,
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background: t < 0.5f ? a.background : null,
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decoration: t < 0.5f ? a.decoration : null,
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decorationColor: Color.lerp(a.decorationColor, null, t),
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decorationStyle: t < 0.5f ? a.decorationStyle : null,
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decorationThickness: t < 0.5f ? a.decorationThickness : null,
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shadows: t < 0.5f ? a.shadows : null,
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debugLabel: lerpDebugLabel
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);
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}
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return new TextStyle(
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inherit: b.inherit,
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color: a.foreground == null && b.foreground == null ? Color.lerp(a.color, b.color, t) : null,
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backgroundColor: a.background == null && b.background == null
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? Color.lerp(a.backgroundColor, b.backgroundColor, t)
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: null,
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fontFamily: t < 0.5 ? a.fontFamily : b.fontFamily,
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fontFamilyFallback: t < 0.5 ? a.fontFamilyFallback : b.fontFamilyFallback,
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fontSize: MathUtils.lerpNullableFloat(a.fontSize ?? b.fontSize, b.fontSize ?? a.fontSize, t),
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fontWeight: t < 0.5 ? a.fontWeight : b.fontWeight,
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fontStyle: t < 0.5 ? a.fontStyle : b.fontStyle,
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letterSpacing: MathUtils.lerpNullableFloat(a.letterSpacing ?? b.letterSpacing,
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b.letterSpacing ?? a.letterSpacing, t),
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wordSpacing: MathUtils.lerpNullableFloat(a.wordSpacing ?? b.wordSpacing,
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b.wordSpacing ?? a.wordSpacing, t),
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textBaseline: t < 0.5 ? a.textBaseline : b.textBaseline,
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height: MathUtils.lerpNullableFloat(a.height ?? b.height, b.height ?? a.height, t),
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foreground: (a.foreground != null || b.foreground != null)
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? t < 0.5
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? a.foreground ?? new Paint() {color = a.color}
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: b.foreground ?? new Paint() {color = b.color}
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: null,
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background: (a.background != null || b.background != null)
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? t < 0.5
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? a.background ?? new Paint() {color = a.backgroundColor}
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: b.background ?? new Paint() {color = b.backgroundColor}
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: null,
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decoration: t < 0.5 ? a.decoration : b.decoration,
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decorationColor: Color.lerp(a.decorationColor, b.decorationColor, t),
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decorationStyle: t < 0.5 ? a.decorationStyle : b.decorationStyle,
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decorationThickness: MathUtils.lerpFloat(
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a.decorationThickness ?? b.decorationThickness ?? 0.0f,
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b.decorationThickness ?? a.decorationThickness ?? 0.0f, t),
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shadows: t < 0.5f ? a.shadows : b.shadows,
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debugLabel: lerpDebugLabel
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);
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}
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public override void debugFillProperties(DiagnosticPropertiesBuilder properties) {
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base.debugFillProperties(properties);
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List<DiagnosticsNode> styles = new List<DiagnosticsNode>();
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styles.Add(new DiagnosticsProperty<Color>("color", this.color,
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defaultValue: Diagnostics.kNullDefaultValue));
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styles.Add(new DiagnosticsProperty<Color>("backgroundColor", this.backgroundColor,
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defaultValue: Diagnostics.kNullDefaultValue));
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styles.Add(new StringProperty("family", this.fontFamily, defaultValue: Diagnostics.kNullDefaultValue,
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quoted: false));
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styles.Add(new EnumerableProperty<string>("familyFallback", this.fontFamilyFallback,
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defaultValue: Diagnostics.kNullDefaultValue));
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styles.Add(new DiagnosticsProperty<float?>("size", this.fontSize,
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defaultValue: Diagnostics.kNullDefaultValue));
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string weightDescription = "";
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if (this.fontWeight != null) {
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weightDescription = this.fontWeight.weightValue.ToString();
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}
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styles.Add(new DiagnosticsProperty<FontWeight>(
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"weight", this.fontWeight,
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description: weightDescription,
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defaultValue: Diagnostics.kNullDefaultValue
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));
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styles.Add(new EnumProperty<FontStyle?>("style", this.fontStyle,
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defaultValue: Diagnostics.kNullDefaultValue));
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styles.Add(new DiagnosticsProperty<float?>("letterSpacing", this.letterSpacing,
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defaultValue: Diagnostics.kNullDefaultValue));
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styles.Add(new DiagnosticsProperty<float?>("wordSpacing", this.wordSpacing,
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defaultValue: Diagnostics.kNullDefaultValue));
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styles.Add(new EnumProperty<TextBaseline?>("baseline", this.textBaseline,
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defaultValue: Diagnostics.kNullDefaultValue));
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styles.Add(new DiagnosticsProperty<float?>("height", this.height,
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defaultValue: Diagnostics.kNullDefaultValue));
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styles.Add(new StringProperty("foreground", this.foreground == null ? null : this.foreground.ToString(),
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defaultValue: Diagnostics.kNullDefaultValue, quoted: false));
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styles.Add(new StringProperty("background", this.background == null ? null : this.background.ToString(),
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defaultValue: Diagnostics.kNullDefaultValue, quoted: false));
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if (this.decoration != null) {
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List<string> decorationDescription = new List<string>();
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if (this.decorationStyle != null) {
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decorationDescription.Add(this.decorationStyle.ToString());
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}
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styles.Add(new DiagnosticsProperty<Color>("decorationColor", this.decorationColor,
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defaultValue: Diagnostics.kNullDefaultValue,
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level: DiagnosticLevel.fine));
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if (this.decorationColor != null) {
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decorationDescription.Add(this.decorationColor.ToString());
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}
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styles.Add(new DiagnosticsProperty<TextDecoration>("decoration", this.decoration,
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defaultValue: Diagnostics.kNullDefaultValue,
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level: DiagnosticLevel.hidden));
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if (this.decoration != null) {
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decorationDescription.Add("$decoration");
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}
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D.assert(decorationDescription.isNotEmpty);
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styles.Add(new MessageProperty("decoration", string.Join(" ", decorationDescription.ToArray())));
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styles.Add(new FloatProperty("decorationThickness", this.decorationThickness, unit: "x",
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defaultValue: Diagnostics.kNoDefaultValue));
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}
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bool styleSpecified = styles.Any((DiagnosticsNode n) => !n.isFiltered(DiagnosticLevel.info));
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properties.add(new DiagnosticsProperty<bool>("inherit", this.inherit,
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level: (!styleSpecified && this.inherit) ? DiagnosticLevel.fine : DiagnosticLevel.info));
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foreach (var style in styles) {
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properties.add(style);
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}
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if (!styleSpecified) {
|
|
properties.add(new FlagProperty("inherit", value: this.inherit, ifTrue: "<all styles inherited>",
|
|
ifFalse: "<no style specified>"));
|
|
}
|
|
}
|
|
|
|
public bool Equals(TextStyle other) {
|
|
if (ReferenceEquals(null, other)) {
|
|
return false;
|
|
}
|
|
|
|
if (ReferenceEquals(this, other)) {
|
|
return true;
|
|
}
|
|
|
|
return this.inherit == other.inherit &&
|
|
Equals(this.color, other.color) &&
|
|
Equals(this.backgroundColor, other.backgroundColor) &&
|
|
this.fontSize.Equals(other.fontSize) &&
|
|
this.fontWeight == other.fontWeight &&
|
|
this.fontStyle == other.fontStyle &&
|
|
this.letterSpacing.Equals(other.letterSpacing) &&
|
|
this.wordSpacing.Equals(other.wordSpacing) &&
|
|
this.textBaseline == other.textBaseline &&
|
|
this.height.Equals(other.height) &&
|
|
Equals(this.decoration, other.decoration) &&
|
|
Equals(this.decorationColor, other.decorationColor) &&
|
|
this.decorationStyle == other.decorationStyle &&
|
|
this.decorationThickness == other.decorationThickness &&
|
|
Equals(this.foreground, other.foreground) &&
|
|
Equals(this.background, other.background) &&
|
|
this.fontFamilyFallback.equalsList(other.fontFamilyFallback) &&
|
|
this.shadows.equalsList(other.shadows) &&
|
|
string.Equals(this.fontFamily, other.fontFamily);
|
|
}
|
|
|
|
public override bool Equals(object obj) {
|
|
if (ReferenceEquals(null, obj)) {
|
|
return false;
|
|
}
|
|
|
|
if (ReferenceEquals(this, obj)) {
|
|
return true;
|
|
}
|
|
|
|
if (obj.GetType() != this.GetType()) {
|
|
return false;
|
|
}
|
|
|
|
return this.Equals((TextStyle) obj);
|
|
}
|
|
|
|
public override int GetHashCode() {
|
|
unchecked {
|
|
var hashCode = this.inherit.GetHashCode();
|
|
hashCode = (hashCode * 397) ^ (this.color != null ? this.color.GetHashCode() : 0);
|
|
hashCode = (hashCode * 397) ^ (this.backgroundColor != null ? this.backgroundColor.GetHashCode() : 0);
|
|
hashCode = (hashCode * 397) ^ this.fontSize.GetHashCode();
|
|
hashCode = (hashCode * 397) ^ (this.fontWeight != null ? this.fontWeight.GetHashCode() : 0);
|
|
hashCode = (hashCode * 397) ^ this.fontStyle.GetHashCode();
|
|
hashCode = (hashCode * 397) ^ this.letterSpacing.GetHashCode();
|
|
hashCode = (hashCode * 397) ^ this.wordSpacing.GetHashCode();
|
|
hashCode = (hashCode * 397) ^ this.textBaseline.GetHashCode();
|
|
hashCode = (hashCode * 397) ^ this.height.GetHashCode();
|
|
hashCode = (hashCode * 397) ^ (this.decoration != null ? this.decoration.GetHashCode() : 0);
|
|
hashCode = (hashCode * 397) ^ (this.decorationColor != null ? this.decorationColor.GetHashCode() : 0);
|
|
hashCode = (hashCode * 397) ^ this.decorationStyle.GetHashCode();
|
|
hashCode = (hashCode * 397) ^ this.decorationThickness.GetHashCode();
|
|
hashCode = (hashCode * 397) ^ (this.foreground != null ? this.foreground.GetHashCode() : 0);
|
|
hashCode = (hashCode * 397) ^ (this.background != null ? this.background.GetHashCode() : 0);
|
|
hashCode = (hashCode * 397) ^ (this.fontFamily != null ? this.fontFamily.GetHashCode() : 0);
|
|
hashCode = (hashCode * 397) ^
|
|
(this.fontFamilyFallback != null ? this.fontFamilyFallback.GetHashCode() : 0);
|
|
hashCode = (hashCode * 397) ^ (this.shadows != null ? this.shadows.GetHashCode() : 0);
|
|
return hashCode;
|
|
}
|
|
}
|
|
|
|
public static bool operator ==(TextStyle left, TextStyle right) {
|
|
return Equals(left, right);
|
|
}
|
|
|
|
public static bool operator !=(TextStyle left, TextStyle right) {
|
|
return !Equals(left, right);
|
|
}
|
|
|
|
public override string toStringShort() {
|
|
return this.GetType().FullName;
|
|
}
|
|
}
|
|
}
|