aa121dcb2f
Use the covariant return type feature of C# 9 to allow method overrides to be more specific about their return type. By exposing this information, e.g. for Widget.Clone(), callers will have more information. This allows various casts to be removed as the information is now available within the type system.
91 lines
3.1 KiB
C#
91 lines
3.1 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 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 CheckboxWidget : ButtonWidget
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{
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public new string Background = "checkbox";
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public string Checkmark = "tick";
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public Func<string> GetCheckmark;
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public Func<bool> IsChecked = () => false;
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readonly CachedTransform<(string, bool), CachedTransform<(bool, bool, bool, bool, bool), Sprite>> getCheckmarkImageCache
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= new(((string CheckType, bool Checked) args) =>
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{
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var variantImageCollection = "checkmark-" + args.CheckType;
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var variantBaseName = args.Checked ? "checked" : "unchecked";
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return WidgetUtils.GetCachedStatefulImage(variantImageCollection, variantBaseName);
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});
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[ObjectCreator.UseCtor]
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public CheckboxWidget(ModData modData)
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: base(modData)
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{
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GetCheckmark = () => Checkmark;
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TextColor = ChromeMetrics.Get<Color>("TextColor");
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TextColorDisabled = ChromeMetrics.Get<Color>("TextDisabledColor");
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GetColor = () => TextColor;
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GetColorDisabled = () => TextColorDisabled;
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}
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protected CheckboxWidget(CheckboxWidget other)
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: base(other)
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{
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Background = other.Background;
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Checkmark = other.Checkmark;
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GetCheckmark = other.GetCheckmark;
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IsChecked = other.IsChecked;
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TextColor = other.TextColor;
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TextColorDisabled = other.TextColorDisabled;
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GetColor = other.GetColor;
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GetColorDisabled = other.GetColorDisabled;
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}
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public override void Draw()
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{
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var disabled = IsDisabled();
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var font = Game.Renderer.Fonts[Font];
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var hover = Ui.MouseOverWidget == this;
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var color = GetColor();
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var colordisabled = GetColorDisabled();
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var text = GetText();
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var rect = new Rectangle(RenderBounds.Location, new Size(Bounds.Height, Bounds.Height));
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DrawBackground(Background, rect, disabled, Depressed, hover, IsHighlighted());
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var textPosition = new float2(RenderBounds.Left + RenderBounds.Height * 1.5f, RenderOrigin.Y + (Bounds.Height - font.Measure(text).Y - font.TopOffset) / 2);
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if (Contrast)
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font.DrawTextWithContrast(text, textPosition,
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disabled ? colordisabled : color, GetContrastColorDark(), GetContrastColorLight(), 2);
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else
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font.DrawText(text, textPosition,
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disabled ? colordisabled : color);
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var checkmarkImage = getCheckmarkImageCache
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.Update((GetCheckmark(), IsChecked()))
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.Update((disabled, Depressed, hover, false, IsHighlighted()));
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WidgetUtils.DrawSprite(
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checkmarkImage,
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new float2(
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rect.Right - (int)((rect.Height + checkmarkImage.Size.X) / 2),
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rect.Top + (int)((rect.Height - checkmarkImage.Size.Y) / 2)));
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}
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public override CheckboxWidget Clone() { return new CheckboxWidget(this); }
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}
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}
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