87 lines
2.5 KiB
C#
87 lines
2.5 KiB
C#
#region Copyright & License Information
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/*
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* Copyright (c) The OpenRA Developers and Contributors
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* This file is part of OpenRA, which is free software. It is made
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* available to you under the terms of the GNU General Public License
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* as published by the Free Software Foundation, either version 3 of
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* the License, or (at your option) any later version. For more
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* information, see COPYING.
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*/
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#endregion
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using System;
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using System.Collections.Generic;
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using OpenRA.Graphics;
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using OpenRA.Primitives;
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using OpenRA.Widgets;
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namespace OpenRA.Mods.Common.Widgets
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{
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public class LabelWithHighlightWidget : LabelWidget
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{
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public Color HighlightColor = ChromeMetrics.Get<Color>("TextHighlightColor");
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readonly CachedTransform<string, (string Text, bool Highlighted)[]> textComponents;
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[ObjectCreator.UseCtor]
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public LabelWithHighlightWidget()
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: base()
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{
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textComponents = new CachedTransform<string, (string, bool)[]>(MakeComponents);
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}
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protected LabelWithHighlightWidget(LabelWithHighlightWidget other)
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: base(other)
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{
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HighlightColor = other.HighlightColor;
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textComponents = new CachedTransform<string, (string, bool)[]>(MakeComponents);
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}
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(string, bool)[] MakeComponents(string text)
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{
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var components = new List<(string, bool)>();
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foreach (var l in text.Split(new[] { "\\n" }, StringSplitOptions.None))
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{
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var line = l;
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while (line.Length > 0)
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{
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var highlightStart = line.IndexOf('{');
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var highlightEnd = line.IndexOf('}', 0);
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if (highlightStart > 0 && highlightEnd > highlightStart)
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{
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// Normal line segment before highlight
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var lineNormal = line.Substring(0, highlightStart);
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components.Add((lineNormal, false));
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// Highlight line segment
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var lineHighlight = line.Substring(highlightStart + 1, highlightEnd - highlightStart - 1);
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components.Add((lineHighlight, true));
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line = line.Substring(highlightEnd + 1);
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}
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else
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{
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// Final normal line segment
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components.Add((line, false));
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break;
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}
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}
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}
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return components.ToArray();
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}
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protected override void DrawInner(string text, SpriteFont font, Color color, int2 position)
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{
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var advance = 0;
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foreach (var c in textComponents.Update(text))
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{
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base.DrawInner(c.Text, font, c.Highlighted ? HighlightColor : color, position + new int2(advance, 0));
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advance += font.Measure(c.Text).X;
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}
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}
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public override Widget Clone() { return new LabelWithHighlightWidget(this); }
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}
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}
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