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.
99 lines
2.9 KiB
C#
99 lines
2.9 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 ImageWidget : Widget
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{
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public readonly string TooltipTemplate;
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public readonly string TooltipContainer;
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public string ImageCollection = "";
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public string ImageName = "";
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public bool ClickThrough = true;
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public Func<string> GetImageName;
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public Func<string> GetImageCollection;
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public Func<Sprite> GetSprite;
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[FluentReference]
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public string TooltipText;
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readonly Lazy<TooltipContainerWidget> tooltipContainer;
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public Func<string> GetTooltipText;
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readonly CachedTransform<(string, string), Sprite> getImageCache = new(
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((string Collection, string Image) args) => ChromeProvider.GetImage(args.Collection, args.Image));
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public ImageWidget()
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{
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GetImageName = () => ImageName;
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GetImageCollection = () => ImageCollection;
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var tooltipCache = new CachedTransform<string, string>(s => !string.IsNullOrEmpty(s) ? FluentProvider.GetMessage(s) : "");
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GetTooltipText = () => tooltipCache.Update(TooltipText);
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tooltipContainer = Exts.Lazy(() =>
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Ui.Root.Get<TooltipContainerWidget>(TooltipContainer));
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GetSprite = () => getImageCache.Update((GetImageCollection(), GetImageName()));
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}
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protected ImageWidget(ImageWidget other)
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: base(other)
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{
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ClickThrough = other.ClickThrough;
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ImageName = other.ImageName;
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GetImageName = other.GetImageName;
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ImageCollection = other.ImageCollection;
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GetImageCollection = other.GetImageCollection;
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TooltipTemplate = other.TooltipTemplate;
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TooltipContainer = other.TooltipContainer;
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GetTooltipText = other.GetTooltipText;
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tooltipContainer = Exts.Lazy(() =>
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Ui.Root.Get<TooltipContainerWidget>(TooltipContainer));
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GetSprite = () => getImageCache.Update((GetImageCollection(), GetImageName()));
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}
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public override ImageWidget Clone() { return new ImageWidget(this); }
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public override void Draw()
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{
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WidgetUtils.DrawSprite(GetSprite(), RenderOrigin);
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}
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public override bool HandleMouseInput(MouseInput mi)
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{
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return !ClickThrough && RenderBounds.Contains(mi.Location);
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}
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public override void MouseEntered()
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{
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if (TooltipContainer == null || GetTooltipText == null)
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return;
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tooltipContainer.Value.SetTooltip(TooltipTemplate, new WidgetArgs() { { "getText", GetTooltipText } });
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}
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public override void MouseExited()
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{
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if (TooltipContainer == null)
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return;
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tooltipContainer.Value.RemoveTooltip();
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}
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}
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}
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