using System; using System.Collections.Generic; using System.Linq; using Unity.UIWidgets.foundation; using Unity.UIWidgets.ui; namespace Unity.UIWidgets.painting { public class TextStyle : Diagnosticable, IEquatable { const string _kDefaultDebugLabel = "unknown"; const string _kColorForegroundWarning = "Cannot provide both a color and a foreground\n" + "The color argument is just a shorthand for 'foreground: new Paint()..color = color'."; const string _kColorBackgroundWarning = "Cannot provide both a backgroundColor and a background\n" + "The backgroundColor argument is just a shorthand for 'background: new Paint()..color = color'."; public static readonly float _defaultFontSize = 14.0f; public readonly Paint background; public readonly Color backgroundColor; public readonly Color color; public readonly string debugLabel; public readonly TextDecoration decoration; public readonly Color decorationColor; public readonly TextDecorationStyle? decorationStyle; public readonly float? decorationThickness; public readonly string fontFamily; public readonly List fontFeatures; public readonly float? fontSize; public readonly FontStyle? fontStyle; public readonly FontWeight fontWeight; public readonly Paint foreground; public readonly float? height; public readonly bool inherit; public readonly float? letterSpacing; public readonly List shadows; public readonly TextBaseline? textBaseline; public readonly float? wordSpacing; public TextStyle(bool inherit = true, Color color = null, Color backgroundColor = null, float? fontSize = null, FontWeight fontWeight = null, FontStyle? fontStyle = null, float? letterSpacing = null, float? wordSpacing = null, TextBaseline? textBaseline = null, float? height = null, Paint foreground = null, Paint background = null, TextDecoration decoration = null, Color decorationColor = null, TextDecorationStyle? decorationStyle = null, float? decorationThickness = null, string fontFamily = null, List fontFamilyFallback = null, List shadows = null, List fontFeatures = null, string debugLabel = null) { D.assert(color == null || foreground == null, () => _kColorForegroundWarning); D.assert(backgroundColor == null || background == null, () => _kColorBackgroundWarning); this.inherit = inherit; this.color = color; this.backgroundColor = backgroundColor; this.fontSize = fontSize; this.fontWeight = fontWeight; this.fontStyle = fontStyle; this.letterSpacing = letterSpacing; this.wordSpacing = wordSpacing; this.textBaseline = textBaseline; this.height = height; this.decoration = decoration; this.decorationColor = decorationColor; this.decorationStyle = decorationStyle; this.decorationThickness = decorationThickness; this.fontFamily = fontFamily; this.fontFamilyFallback = fontFamilyFallback; this.debugLabel = debugLabel; this.foreground = foreground; this.background = background; this.shadows = shadows; this.fontFeatures = fontFeatures; } public List fontFamilyFallback { get; } public bool Equals(TextStyle other) { if (ReferenceEquals(null, objB: other)) { return false; } if (ReferenceEquals(this, objB: other)) { return true; } return inherit == other.inherit && Equals(objA: color, objB: other.color) && Equals(objA: backgroundColor, objB: other.backgroundColor) && fontSize.Equals(other: other.fontSize) && fontWeight == other.fontWeight && fontStyle == other.fontStyle && letterSpacing.Equals(other: other.letterSpacing) && wordSpacing.Equals(other: other.wordSpacing) && textBaseline == other.textBaseline && height.Equals(other: other.height) && Equals(objA: decoration, objB: other.decoration) && Equals(objA: decorationColor, objB: other.decorationColor) && decorationStyle == other.decorationStyle && decorationThickness == other.decorationThickness && Equals(objA: foreground, objB: other.foreground) && Equals(objA: background, objB: other.background) && fontFamilyFallback.equalsList(list: other.fontFamilyFallback) && shadows.equalsList(list: other.shadows) && fontFeatures.equalsList(list: other.fontFeatures) && string.Equals(a: fontFamily, b: other.fontFamily); } public RenderComparison compareTo(TextStyle other) { if (ReferenceEquals(this, objB: other)) { return RenderComparison.identical; } if (inherit != other.inherit || fontFamily != other.fontFamily || fontSize != other.fontSize || fontWeight != other.fontWeight || fontStyle != other.fontStyle || letterSpacing != other.letterSpacing || wordSpacing != other.wordSpacing || textBaseline != other.textBaseline || height != other.height || foreground != other.foreground || background != other.background || !shadows.equalsList(list: other.shadows) || !fontFeatures.equalsList(list: other.fontFeatures) || !fontFamilyFallback.equalsList(list: other.fontFamilyFallback)) { return RenderComparison.layout; } if (color != other.color || backgroundColor != other.backgroundColor || decoration != other.decoration || decorationColor != other.decorationColor || decorationStyle != other.decorationStyle) { return RenderComparison.paint; } return RenderComparison.identical; } public ParagraphStyle getParagraphStyle( TextAlign? textAlign = null, TextDirection? textDirection = null, float? textScaleFactor = 1.0f, string ellipsis = null, int? maxLines = null, TextHeightBehavior textHeightBehavior = null, Locale locale = null, string fontFamily = null, float? fontSize = null, FontWeight fontWeight = null, FontStyle? fontStyle = null, float? height = null, StrutStyle strutStyle = null ) { D.assert(textScaleFactor != null); D.assert(maxLines == null || maxLines > 0); return new ParagraphStyle( textAlign: textAlign, textDirection ?? TextDirection.ltr, fontWeight: fontWeight ?? this.fontWeight, fontStyle: fontStyle ?? this.fontStyle, fontFamily: fontFamily ?? this.fontFamily, fontSize: (fontSize ?? this.fontSize ?? _defaultFontSize) * textScaleFactor, height: height ?? this.height, textHeightBehavior: textHeightBehavior, strutStyle: strutStyle == null ? null : new ui.StrutStyle( fontFamily: strutStyle.fontFamily, fontFamilyFallback: strutStyle.fontFamilyFallback, strutStyle.fontSize == null ? null : strutStyle.fontSize * textScaleFactor, height: strutStyle.height, leading: strutStyle.leading, fontWeight: strutStyle.fontWeight, fontStyle: strutStyle.fontStyle, forceStrutHeight: strutStyle.forceStrutHeight ), maxLines: maxLines, ellipsis: ellipsis, locale: locale ); } public TextStyle apply( Color color = null, Color backgroundColor = null, TextDecoration decoration = null, Color decorationColor = null, TextDecorationStyle? decorationStyle = null, float decorationThicknessFactor = 1.0f, float decorationThicknessDelta = 0.0f, string fontFamily = null, List fontFamilyFallback = null, List shadows = null, float fontSizeFactor = 1.0f, float fontSizeDelta = 0.0f, int fontWeightDelta = 0, float letterSpacingFactor = 1.0f, float letterSpacingDelta = 0.0f, float wordSpacingFactor = 1.0f, float wordSpacingDelta = 0.0f, float heightFactor = 1.0f, float heightDelta = 0.0f ) { D.assert(fontSize != null || fontSizeFactor == 1.0f && fontSizeDelta == 0.0f); D.assert(fontWeight != null || fontWeightDelta == 0.0f); D.assert(letterSpacing != null || letterSpacingFactor == 1.0f && letterSpacingDelta == 0.0f); D.assert(wordSpacing != null || wordSpacingFactor == 1.0f && wordSpacingDelta == 0.0f); D.assert(height != null || heightFactor == 1.0f && heightDelta == 0.0f); D.assert(decorationThickness != null || decorationThicknessFactor == 1.0f && decorationThicknessDelta == 0.0f); var modifiedDebugLabel = ""; D.assert(() => { if (debugLabel != null) { modifiedDebugLabel = debugLabel + ".apply"; } return true; }); return new TextStyle( inherit: inherit, foreground == null ? color ?? this.color : null, background == null ? backgroundColor ?? this.backgroundColor : null, fontFamily: fontFamily ?? this.fontFamily, fontFamilyFallback: fontFamilyFallback ?? this.fontFamilyFallback, fontSize: fontSize == null ? null : fontSize * fontSizeFactor + fontSizeDelta, fontWeight: fontWeight == null ? null : fontWeight, fontStyle: fontStyle, letterSpacing: letterSpacing == null ? null : letterSpacing * letterSpacingFactor + letterSpacingDelta, wordSpacing: wordSpacing == null ? null : wordSpacing * wordSpacingFactor + wordSpacingDelta, textBaseline: textBaseline, height: height == null ? null : height * heightFactor + heightDelta, foreground: foreground, background: background, decoration: decoration ?? this.decoration, decorationColor: decorationColor ?? this.decorationColor, decorationStyle: decorationStyle ?? this.decorationStyle, decorationThickness: decorationThickness == null ? null : decorationThickness * decorationThicknessFactor + decorationThicknessDelta, shadows: shadows ?? this.shadows, fontFeatures: fontFeatures, debugLabel: modifiedDebugLabel ); } public TextStyle merge(TextStyle other) { if (other == null) { return this; } if (!other.inherit) { return other; } string mergedDebugLabel = null; D.assert(() => { if (other.debugLabel != null || debugLabel != null) { mergedDebugLabel = $"({debugLabel ?? _kDefaultDebugLabel}).merge({other.debugLabel ?? _kDefaultDebugLabel})"; } return true; }); return copyWith( color: other.color, backgroundColor: other.backgroundColor, fontFamily: other.fontFamily, fontFamilyFallback: other.fontFamilyFallback, fontSize: other.fontSize, fontWeight: other.fontWeight, fontStyle: other.fontStyle, letterSpacing: other.letterSpacing, wordSpacing: other.wordSpacing, textBaseline: other.textBaseline, height: other.height, foreground: other.foreground, background: other.background, decoration: other.decoration, decorationColor: other.decorationColor, decorationStyle: other.decorationStyle, decorationThickness: other.decorationThickness, shadows: other.shadows, fontFeatures: other.fontFeatures, debugLabel: mergedDebugLabel ); } public TextStyle copyWith( bool? inherit = null, Color color = null, Color backgroundColor = null, string fontFamily = null, List fontFamilyFallback = null, float? fontSize = null, FontWeight fontWeight = null, FontStyle? fontStyle = null, float? letterSpacing = null, float? wordSpacing = null, TextBaseline? textBaseline = null, float? height = null, Paint foreground = null, Paint background = null, TextDecoration decoration = null, Color decorationColor = null, TextDecorationStyle? decorationStyle = null, float? decorationThickness = null, List shadows = null, List fontFeatures = null, string debugLabel = null) { D.assert(color == null || foreground == null, () => _kColorForegroundWarning); D.assert(backgroundColor == null || background == null, () => _kColorBackgroundWarning); string newDebugLabel = null; D.assert(() => { if (this.debugLabel != null) { newDebugLabel = debugLabel ?? $"({this.debugLabel}).copyWith"; } return true; }); return new TextStyle( inherit ?? this.inherit, this.foreground == null && foreground == null ? color ?? this.color : null, this.background == null && background == null ? backgroundColor ?? this.backgroundColor : null, fontFamily: fontFamily ?? this.fontFamily, fontFamilyFallback: fontFamilyFallback ?? this.fontFamilyFallback, fontSize: fontSize ?? this.fontSize, fontWeight: fontWeight ?? this.fontWeight, fontStyle: fontStyle ?? this.fontStyle, letterSpacing: letterSpacing ?? this.letterSpacing, wordSpacing: wordSpacing ?? this.wordSpacing, textBaseline: textBaseline ?? this.textBaseline, height: height ?? this.height, decoration: decoration ?? this.decoration, decorationColor: decorationColor ?? this.decorationColor, decorationStyle: decorationStyle ?? this.decorationStyle, decorationThickness: decorationThickness ?? this.decorationThickness, foreground: foreground ?? this.foreground, background: background ?? this.background, shadows: shadows ?? this.shadows, fontFeatures: fontFeatures ?? this.fontFeatures, debugLabel: newDebugLabel ); } public static TextStyle lerp(TextStyle a, TextStyle b, float t) { D.assert(a == null || b == null || a.inherit == b.inherit); if (a == null && b == null) { return null; } var lerpDebugLabel = ""; D.assert(() => { lerpDebugLabel = "lerp" + (a?.debugLabel ?? _kDefaultDebugLabel) + "-" + t + "-" + (b?.debugLabel ?? _kDefaultDebugLabel); return true; }); if (a == null) { return new TextStyle( inherit: b.inherit, Color.lerp(null, b: b.color, t: t), Color.lerp(null, b: b.backgroundColor, t: t), fontFamily: t < 0.5f ? null : b.fontFamily, fontFamilyFallback: t < 0.5f ? null : b.fontFamilyFallback, fontSize: t < 0.5f ? null : b.fontSize, fontWeight: t < 0.5f ? null : b.fontWeight, fontStyle: t < 0.5f ? null : b.fontStyle, letterSpacing: t < 0.5f ? null : b.letterSpacing, wordSpacing: t < 0.5f ? null : b.wordSpacing, textBaseline: t < 0.5f ? null : b.textBaseline, height: t < 0.5f ? null : b.height, foreground: t < 0.5f ? null : b.foreground, background: t < 0.5f ? null : b.background, decoration: t < 0.5f ? null : b.decoration, decorationColor: Color.lerp(null, b: b.decorationColor, t: t), decorationStyle: t < 0.5f ? null : b.decorationStyle, decorationThickness: t < 0.5f ? null : b.decorationThickness, shadows: t < 0.5f ? null : b.shadows, fontFeatures: t < 0.5 ? null : b.fontFeatures, debugLabel: lerpDebugLabel ); } if (b == null) { return new TextStyle( inherit: a.inherit, Color.lerp(a: a.color, null, t: t), Color.lerp(a: a.backgroundColor, null, t: t), fontFamily: t < 0.5f ? a.fontFamily : null, fontFamilyFallback: t < 0.5f ? a.fontFamilyFallback : null, fontSize: t < 0.5f ? a.fontSize : null, fontWeight: t < 0.5f ? a.fontWeight : null, fontStyle: t < 0.5f ? a.fontStyle : null, letterSpacing: t < 0.5f ? a.letterSpacing : null, wordSpacing: t < 0.5f ? a.wordSpacing : null, textBaseline: t < 0.5f ? a.textBaseline : null, height: t < 0.5f ? a.height : null, foreground: t < 0.5f ? a.foreground : null, background: t < 0.5f ? a.background : null, decoration: t < 0.5f ? a.decoration : null, decorationColor: Color.lerp(a: a.decorationColor, null, t: t), decorationStyle: t < 0.5f ? a.decorationStyle : null, decorationThickness: t < 0.5f ? a.decorationThickness : null, shadows: t < 0.5f ? a.shadows : null, fontFeatures: t < 0.5 ? a.fontFeatures : null, debugLabel: lerpDebugLabel ); } return new TextStyle( inherit: b.inherit, a.foreground == null && b.foreground == null ? Color.lerp(a: a.color, b: b.color, t: t) : null, a.background == null && b.background == null ? Color.lerp(a: a.backgroundColor, b: b.backgroundColor, t: t) : null, fontFamily: t < 0.5 ? a.fontFamily : b.fontFamily, fontFamilyFallback: t < 0.5 ? a.fontFamilyFallback : b.fontFamilyFallback, fontSize: MathUtils.lerpNullableFloat(a.fontSize ?? b.fontSize, b.fontSize ?? a.fontSize, t: t), fontWeight: t < 0.5 ? a.fontWeight : b.fontWeight, fontStyle: t < 0.5 ? a.fontStyle : b.fontStyle, letterSpacing: MathUtils.lerpNullableFloat(a.letterSpacing ?? b.letterSpacing, b.letterSpacing ?? a.letterSpacing, t: t), wordSpacing: MathUtils.lerpNullableFloat(a.wordSpacing ?? b.wordSpacing, b.wordSpacing ?? a.wordSpacing, t: t), textBaseline: t < 0.5 ? a.textBaseline : b.textBaseline, height: MathUtils.lerpNullableFloat(a.height ?? b.height, b.height ?? a.height, t: t), foreground: a.foreground != null || b.foreground != null ? t < 0.5 ? a.foreground ?? new Paint {color = a.color} : b.foreground ?? new Paint {color = b.color} : null, background: a.background != null || b.background != null ? t < 0.5 ? a.background ?? new Paint {color = a.backgroundColor} : b.background ?? new Paint {color = b.backgroundColor} : null, decoration: t < 0.5 ? a.decoration : b.decoration, decorationColor: Color.lerp(a: a.decorationColor, b: b.decorationColor, t: t), decorationStyle: t < 0.5 ? a.decorationStyle : b.decorationStyle, decorationThickness: MathUtils.lerpNullableFloat( a.decorationThickness ?? b.decorationThickness ?? 0.0f, b.decorationThickness ?? a.decorationThickness ?? 0.0f, t: t), shadows: t < 0.5f ? a.shadows : b.shadows, fontFeatures: t < 0.5 ? a.fontFeatures : b.fontFeatures, debugLabel: lerpDebugLabel ); } ParagraphStyle getParagraphStyle( TextAlign? textAlign = null, TextDirection? textDirection = null, float textScaleFactor = 1.0f, string ellipsis = null, int? maxLines = null, TextHeightBehavior textHeightBehavior = null, Locale locale = null, string fontFamily = null, float? fontSize = null, FontWeight fontWeight = null, FontStyle? fontStyle = null, float? height = null, StrutStyle strutStyle = null ) { D.assert(maxLines == null || maxLines > 0); return new ParagraphStyle( textAlign: textAlign, textDirection ?? TextDirection.ltr, fontWeight: fontWeight ?? this.fontWeight, fontStyle: fontStyle ?? this.fontStyle, fontFamily: fontFamily ?? this.fontFamily, fontSize: (fontSize ?? this.fontSize ?? _defaultFontSize) * textScaleFactor, height: height ?? this.height, textHeightBehavior: textHeightBehavior, strutStyle: strutStyle == null ? null : new ui.StrutStyle( fontFamily: strutStyle.fontFamily, fontFamilyFallback: strutStyle.fontFamilyFallback, strutStyle.fontSize == null ? null : strutStyle.fontSize * textScaleFactor, height: strutStyle.height, leading: strutStyle.leading, fontWeight: strutStyle.fontWeight, fontStyle: strutStyle.fontStyle, forceStrutHeight: strutStyle.forceStrutHeight ), maxLines: maxLines, ellipsis: ellipsis, locale: locale ); } public ui.TextStyle getTextStyle(float textScaleFactor = 1.0f) { var backgroundPaint = new Paint(); if (background != null) { backgroundPaint = new Paint(); backgroundPaint.color = backgroundColor; } return new ui.TextStyle( color: color, decoration: decoration, decorationColor: decorationColor, decorationStyle: decorationStyle, decorationThickness: decorationThickness, fontWeight: fontWeight, fontStyle: fontStyle, textBaseline: textBaseline, fontFamily: fontFamily, fontFamilyFallback: fontFamilyFallback, fontSize == null ? null : fontSize * textScaleFactor, letterSpacing: letterSpacing, wordSpacing: wordSpacing, height: height, // locale: locale, foreground: foreground, background: background ?? (backgroundColor != null ? backgroundPaint : null ), shadows: shadows?.Cast().ToList(), fontFeatures: fontFeatures ); } public override void debugFillProperties(DiagnosticPropertiesBuilder properties) { debugFillProperties(properties: properties); } public void debugFillProperties(DiagnosticPropertiesBuilder properties, string prefix = "") { base.debugFillProperties(properties: properties); var styles = new List(); styles.Add(new ColorProperty($"{prefix}color", value: color, defaultValue: foundation_.kNullDefaultValue)); styles.Add(new ColorProperty($"{prefix}backgroundColor", value: backgroundColor, defaultValue: foundation_.kNullDefaultValue)); styles.Add(new StringProperty($"{prefix}family", value: fontFamily, defaultValue: foundation_.kNullDefaultValue, quoted: false)); styles.Add(new EnumerableProperty($"{prefix}familyFallback", value: fontFamilyFallback, defaultValue: foundation_.kNullDefaultValue)); styles.Add(new DiagnosticsProperty($"{prefix}size", value: fontSize, defaultValue: foundation_.kNullDefaultValue)); var weightDescription = ""; if (fontWeight != null) { weightDescription = $"{fontWeight.index + 1}00"; } styles.Add(new DiagnosticsProperty( "weight", value: fontWeight, description: weightDescription, defaultValue: foundation_.kNullDefaultValue )); styles.Add(new EnumProperty($"{prefix}style", value: fontStyle, defaultValue: foundation_.kNullDefaultValue)); styles.Add(new DiagnosticsProperty($"{prefix}letterSpacing", value: letterSpacing, defaultValue: foundation_.kNullDefaultValue)); styles.Add(new DiagnosticsProperty($"{prefix}wordSpacing", value: wordSpacing, defaultValue: foundation_.kNullDefaultValue)); styles.Add(new EnumProperty($"{prefix}baseline", value: textBaseline, defaultValue: foundation_.kNullDefaultValue)); styles.Add(new DiagnosticsProperty($"{prefix}height", value: height, defaultValue: foundation_.kNullDefaultValue)); styles.Add(new StringProperty($"{prefix}foreground", foreground == null ? null : foreground.ToString(), defaultValue: foundation_.kNullDefaultValue, quoted: false)); styles.Add(new StringProperty($"{prefix}background", background == null ? null : background.ToString(), defaultValue: foundation_.kNullDefaultValue, quoted: false)); if (decoration != null) { var decorationDescription = new List(); if (decorationStyle != null) { decorationDescription.Add(decorationStyle.ToString()); } styles.Add(new ColorProperty($"{prefix}decorationColor", value: decorationColor, defaultValue: foundation_.kNullDefaultValue, level: DiagnosticLevel.fine)); if (decorationColor != null) { decorationDescription.Add(decorationColor.ToString()); } styles.Add(new DiagnosticsProperty($"{prefix}decoration", value: decoration, defaultValue: foundation_.kNullDefaultValue, level: DiagnosticLevel.hidden)); if (decoration != null) { decorationDescription.Add($"{decoration}"); } D.assert(result: decorationDescription.isNotEmpty); styles.Add( new MessageProperty($"{prefix}decoration", string.Join(" ", decorationDescription.ToArray()))); styles.Add(new FloatProperty($"{prefix}decorationThickness", value: decorationThickness, unit: "x", defaultValue: foundation_.kNoDefaultValue)); } var styleSpecified = styles.Any(n => !n.isFiltered(minLevel: DiagnosticLevel.info)); properties.add(new DiagnosticsProperty("inherit", value: inherit, level: !styleSpecified && inherit ? DiagnosticLevel.fine : DiagnosticLevel.info)); foreach (var style in styles) { properties.add(property: style); } if (!styleSpecified) { properties.add(new FlagProperty("inherit", value: inherit, $"{prefix}", $"{prefix}")); } } public override bool Equals(object obj) { if (ReferenceEquals(null, objB: obj)) { return false; } if (ReferenceEquals(this, objB: obj)) { return true; } if (obj.GetType() != GetType()) { return false; } return Equals((TextStyle) obj); } public override int GetHashCode() { unchecked { var hashCode = inherit.GetHashCode(); hashCode = (hashCode * 397) ^ (color != null ? color.GetHashCode() : 0); hashCode = (hashCode * 397) ^ (backgroundColor != null ? backgroundColor.GetHashCode() : 0); hashCode = (hashCode * 397) ^ fontSize.GetHashCode(); hashCode = (hashCode * 397) ^ (fontWeight != null ? fontWeight.GetHashCode() : 0); hashCode = (hashCode * 397) ^ fontStyle.GetHashCode(); hashCode = (hashCode * 397) ^ letterSpacing.GetHashCode(); hashCode = (hashCode * 397) ^ wordSpacing.GetHashCode(); hashCode = (hashCode * 397) ^ textBaseline.GetHashCode(); hashCode = (hashCode * 397) ^ height.GetHashCode(); hashCode = (hashCode * 397) ^ (decoration != null ? decoration.GetHashCode() : 0); hashCode = (hashCode * 397) ^ (decorationColor != null ? decorationColor.GetHashCode() : 0); hashCode = (hashCode * 397) ^ decorationStyle.GetHashCode(); hashCode = (hashCode * 397) ^ decorationThickness.GetHashCode(); hashCode = (hashCode * 397) ^ (foreground != null ? foreground.GetHashCode() : 0); hashCode = (hashCode * 397) ^ (background != null ? background.GetHashCode() : 0); hashCode = (hashCode * 397) ^ (fontFamily != null ? fontFamily.GetHashCode() : 0); hashCode = (hashCode * 397) ^ (fontFamilyFallback != null ? fontFamilyFallback.GetHashCode() : 0); hashCode = (hashCode * 397) ^ (shadows != null ? shadows.GetHashCode() : 0); hashCode = (hashCode * 397) ^ (fontFeatures != null ? fontFeatures.GetHashCode() : 0); return hashCode; } } public static bool operator ==(TextStyle left, TextStyle right) { return Equals(objA: left, objB: right); } public static bool operator !=(TextStyle left, TextStyle right) { return !Equals(objA: left, objB: right); } public override string toStringShort() { return GetType().FullName; } } }