98 lines
3.2 KiB
C#
98 lines
3.2 KiB
C#
#region Copyright & License Information
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/*
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* Copyright 2007,2009,2010 Chris Forbes, Robert Pepperell, Matthew Bowra-Dean, Paul Chote, Alli Witheford.
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* This file is part of OpenRA.
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*
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* OpenRA is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* OpenRA is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with OpenRA. If not, see <http://www.gnu.org/licenses/>.
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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 System.Linq;
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using System.Xml;
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using OpenRA.FileFormats;
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namespace OpenRA.Graphics
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{
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static class ChromeProvider
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{
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static Dictionary<string, Dictionary<string, MappedImage>> collections;
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static Dictionary<string, Sheet> cachedSheets;
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static Dictionary<string, Dictionary<string, Sprite>> cachedSprites;
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public static void Initialize(params string[] chromeFiles)
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{
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collections = new Dictionary<string, Dictionary<string, MappedImage>>();
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cachedSheets = new Dictionary<string, Sheet>();
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cachedSprites = new Dictionary<string, Dictionary<string, Sprite>>();
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foreach (var f in chromeFiles)
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LoadChromeSource(f);
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}
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static void LoadChromeSource(string filename)
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{
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XmlDocument document = new XmlDocument();
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document.Load(FileSystem.Open(filename));
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foreach (XmlElement eCollection in document.SelectNodes("/chrome/collection"))
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LoadChromeForCollection(eCollection);
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}
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static void LoadChromeForCollection(XmlElement eCollection)
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{
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string elementName = eCollection.GetAttribute("name");
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string defaultSrc = (eCollection.HasAttribute("src") ? eCollection.GetAttribute("src") : null);
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var images = eCollection.SelectNodes("./image").OfType<XmlElement>()
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.Select(e => new MappedImage(defaultSrc, e))
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.ToDictionary(s => s.Name);
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collections.Add(elementName, images);
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}
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public static Sprite GetImage(Renderer renderer, string collection, string image)
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{
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// Cached sprite
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if (cachedSprites.ContainsKey(collection) && cachedSprites[collection].ContainsKey(image))
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return cachedSprites[collection][image];
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MappedImage mi;
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try { mi = collections[collection][image]; }
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catch (KeyNotFoundException)
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{
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throw new InvalidOperationException(
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"Collection `{0}` does not have an image `{1}`".F(collection, image));
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}
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// Cached sheet
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Sheet sheet;
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if (cachedSheets.ContainsKey(mi.Src))
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sheet = cachedSheets[mi.Src];
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else
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{
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sheet = new Sheet(renderer, mi.Src);
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cachedSheets.Add(mi.Src, sheet);
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}
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// Cache the sprite
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if (!cachedSprites.ContainsKey(collection))
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cachedSprites.Add(collection, new Dictionary<string, Sprite>());
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cachedSprites[collection].Add(image, mi.GetImage(renderer, sheet));
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return cachedSprites[collection][image];
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}
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}
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}
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