mirror of
https://github.com/knah/VRCMelonAssistant.git
synced 2024-05-14 09:22:21 +12:00
547 lines
22 KiB
C#
547 lines
22 KiB
C#
using System;
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using System.Collections.Generic;
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using System.IO;
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using System.IO.Compression;
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using System.Linq;
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using System.Reflection;
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using System.Windows;
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using System.Windows.Markup;
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using System.Windows.Media;
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using System.Windows.Media.Imaging;
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using Microsoft.Win32;
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using VRCMelonAssistant.Pages;
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namespace VRCMelonAssistant
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{
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public class Themes
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{
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public static string LoadedTheme { get; private set; }
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public static List<string> LoadedThemes { get => loadedThemes.Keys.ToList(); }
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public static string ThemeDirectory = Path.Combine(Path.GetDirectoryName(Utils.ExePath), "Themes");
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/// <summary>
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/// Local dictionary of Resource Dictionaries mapped by their names.
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/// </summary>
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private static readonly Dictionary<string, Theme> loadedThemes = new Dictionary<string, Theme>();
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private static readonly List<string> preInstalledThemes = new List<string> { "Light", "Dark", "Light Pink" };
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/// <summary>
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/// Index of "LoadedTheme" in App.xaml
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/// </summary>
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private static readonly int LOADED_THEME_INDEX = 3;
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private static readonly List<string> supportedVideoExtensions = new List<string>() { ".mp4", ".webm", ".mkv", ".avi", ".m2ts" };
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/// <summary>
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/// Load all themes from local Themes subfolder and from embedded resources.
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/// This also refreshes the Themes dropdown in the Options screen.
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/// </summary>
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public static void LoadThemes()
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{
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loadedThemes.Clear();
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/*
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* Begin by loading local themes. We should always load these first.
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* I am doing loading here to prevent the LoadTheme function from becoming too crazy.
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*/
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foreach (string localTheme in preInstalledThemes)
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{
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string location = $"Themes/{localTheme}.xaml";
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Uri local = new Uri(location, UriKind.Relative);
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ResourceDictionary localDictionary = new ResourceDictionary
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{
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Source = local
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};
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/*
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* Load any Waifus that come with these built-in themes, too.
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* The format must be: Background.png and Sidebar.png as a subfolder with the same name as the theme name.
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* For example: "Themes/Dark/Background.png", or "Themes/Ugly Kulu-Ya-Ku/Sidebar.png"
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*/
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Waifus waifus = new Waifus
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{
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Background = GetImageFromEmbeddedResources(localTheme, "Background"),
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Sidebar = GetImageFromEmbeddedResources(localTheme, "Sidebar")
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};
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Theme theme = new Theme(localTheme, localDictionary)
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{
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Waifus = waifus
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};
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loadedThemes.Add(localTheme, theme);
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}
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// Load themes from Themes subfolder if it exists.
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if (Directory.Exists(ThemeDirectory))
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{
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foreach (string file in Directory.EnumerateFiles(ThemeDirectory))
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{
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FileInfo info = new FileInfo(file);
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string name = Path.GetFileNameWithoutExtension(info.Name);
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if (info.Extension.ToLower().Equals(".mat"))
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{
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Theme theme = LoadZipTheme(ThemeDirectory, name, ".mat");
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if (theme is null) continue;
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AddOrModifyTheme(name, theme);
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}
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}
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// Finally load any loose theme files in subfolders.
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foreach (string directory in Directory.EnumerateDirectories(ThemeDirectory))
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{
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string name = directory.Split('\\').Last();
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Theme theme = LoadTheme(directory, name);
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if (theme is null) continue;
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AddOrModifyTheme(name, theme);
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}
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}
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// Refresh Themes dropdown in Options screen.
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if (Options.Instance != null && Options.Instance.ApplicationThemeComboBox != null)
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{
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Options.Instance.ApplicationThemeComboBox.ItemsSource = LoadedThemes;
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Options.Instance.ApplicationThemeComboBox.SelectedIndex = LoadedThemes.IndexOf(LoadedTheme);
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}
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}
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/// <summary>
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/// Runs once at the start of the program, performs settings checking.
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/// </summary>
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/// <param name="savedTheme">Theme name retrieved from the settings file.</param>
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public static void FirstLoad(string savedTheme)
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{
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if (string.IsNullOrEmpty(savedTheme))
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{
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try
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{
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ApplyWindowsTheme();
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}
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catch
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{
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ApplyTheme("Light", false);
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}
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return;
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}
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try
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{
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ApplyTheme(savedTheme, false);
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}
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catch (ArgumentException)
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{
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ApplyWindowsTheme();
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MainWindow.Instance.MainText = (string)Application.Current.FindResource("Themes:ThemeNotFound");
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}
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}
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/// <summary>
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/// Applies a loaded theme to VRCMelonAssistant.
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/// </summary>
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/// <param name="theme">Name of the theme.</param>
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/// <param name="sendMessage">Send message to MainText (default: true).</param>
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public static void ApplyTheme(string theme, bool sendMessage = true)
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{
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if (loadedThemes.TryGetValue(theme, out Theme newTheme))
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{
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LoadedTheme = theme;
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MainWindow.Instance.BackgroundVideo.Pause();
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MainWindow.Instance.BackgroundVideo.Visibility = Visibility.Hidden;
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if (newTheme.ThemeDictionary != null)
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{
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// TODO: Search by name
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Application.Current.Resources.MergedDictionaries.RemoveAt(LOADED_THEME_INDEX);
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Application.Current.Resources.MergedDictionaries.Insert(LOADED_THEME_INDEX, newTheme.ThemeDictionary);
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}
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Properties.Settings.Default.SelectedTheme = theme;
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Properties.Settings.Default.Save();
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if (sendMessage)
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{
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MainWindow.Instance.MainText = string.Format((string)Application.Current.FindResource("Themes:ThemeSet"), theme);
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}
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ApplyWaifus();
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if (File.Exists(newTheme.VideoLocation))
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{
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Uri videoUri = new Uri(newTheme.VideoLocation, UriKind.Absolute);
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MainWindow.Instance.BackgroundVideo.Visibility = Visibility.Visible;
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// Load the source video if it's not the same as what's playing, or if the theme is loading for the first time.
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if (!sendMessage || MainWindow.Instance.BackgroundVideo.Source?.AbsoluteUri != videoUri.AbsoluteUri)
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{
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MainWindow.Instance.BackgroundVideo.Stop();
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MainWindow.Instance.BackgroundVideo.Source = videoUri;
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}
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MainWindow.Instance.BackgroundVideo.Play();
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}
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ReloadIcons();
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}
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else
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{
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throw new ArgumentException(string.Format((string)Application.Current.FindResource("Themes:ThemeMissing"), theme));
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}
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}
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/// <summary>
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/// Writes an Embedded Resource theme to disk. You cannot write an outside theme to disk.
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/// </summary>
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/// <param name="themeName">Name of local theme.</param>
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public static void WriteThemeToDisk(string themeName)
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{
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Directory.CreateDirectory(ThemeDirectory);
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Directory.CreateDirectory($"{ThemeDirectory}\\{themeName}");
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if (File.Exists($@"{ThemeDirectory}\\{themeName}.xaml") == false)
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{
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/*
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* Any theme that you want to write must be set as an Embedded Resource instead of the default Page.
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* This is so that we can grab its exact content from Manifest, shown below.
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* Writing it as is instead of using XAMLWriter keeps the source as is with comments, spacing, and organization.
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* Using XAMLWriter would compress it into an unorganized mess.
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*/
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using (Stream s = Assembly.GetExecutingAssembly().GetManifestResourceStream($"VRCMelonAssistant.Themes.{themeName}.xaml"))
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using (FileStream writer = new FileStream($@"{ThemeDirectory}\\{themeName}\\{themeName}.xaml", FileMode.Create))
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{
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byte[] buffer = new byte[s.Length];
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int read = s.Read(buffer, 0, (int)s.Length);
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writer.Write(buffer, 0, buffer.Length);
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}
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MainWindow.Instance.MainText = string.Format((string)Application.Current.FindResource("Themes:SavedTemplateTheme"), themeName);
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}
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else
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{
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MessageBox.Show((string)Application.Current.FindResource("Themes:TemplateThemeExists"));
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}
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}
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/// <summary>
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/// Finds the theme set on Windows and applies it.
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/// </summary>
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public static void ApplyWindowsTheme()
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{
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using (RegistryKey key = Registry.CurrentUser
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.OpenSubKey("Software").OpenSubKey("Microsoft")
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.OpenSubKey("Windows").OpenSubKey("CurrentVersion")
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.OpenSubKey("Themes").OpenSubKey("Personalize"))
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{
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object registryValueObject = key?.GetValue("AppsUseLightTheme");
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if (registryValueObject != null)
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{
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if ((int)registryValueObject <= 0)
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{
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ApplyTheme("Dark", false);
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return;
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}
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}
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ApplyTheme("Light", false);
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}
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}
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/// <summary>
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/// Loads a Theme from a directory location.
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/// </summary>
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/// <param name="directory">The full directory path to the theme.</param>
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/// <param name="name">Name of the containing folder.</param>
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/// <returns></returns>
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private static Theme LoadTheme(string directory, string name)
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{
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Theme theme = new Theme(name, null)
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{
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Waifus = new Waifus()
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};
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foreach (string file in Directory.EnumerateFiles(directory).OrderBy(x => x))
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{
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FileInfo info = new FileInfo(file);
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bool isPng = info.Name.EndsWith(".png", StringComparison.OrdinalIgnoreCase);
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bool isSidePng = info.Name.EndsWith(".side.png", StringComparison.OrdinalIgnoreCase);
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bool isXaml = info.Name.EndsWith(".xaml", StringComparison.OrdinalIgnoreCase);
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if (isPng && !isSidePng)
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{
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theme.Waifus.Background = new BitmapImage(new Uri(info.FullName));
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}
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if (isSidePng)
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{
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theme.Waifus.Sidebar = new BitmapImage(new Uri(info.FullName));
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}
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if (isXaml)
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{
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try
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{
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Uri resourceSource = new Uri(info.FullName);
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ResourceDictionary dictionary = new ResourceDictionary
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{
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Source = resourceSource
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};
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theme.ThemeDictionary = dictionary;
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}
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catch (Exception ex)
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{
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string message = string.Format((string)Application.Current.FindResource("Themes:FailedToLoadXaml"), name, ex.Message);
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MessageBox.Show(message);
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}
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}
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if (supportedVideoExtensions.Contains(info.Extension))
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{
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if (info.Name != $"_{name}{info.Extension}" || theme.VideoLocation is null)
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{
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theme.VideoLocation = info.FullName;
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}
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}
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}
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return theme;
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}
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/// <summary>
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/// Modifies an already existing theme, or adds the theme if it doesn't exist
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/// </summary>
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/// <param name="name">Name of the theme.</param>
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/// <param name="theme">Theme to modify/apply</param>
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private static void AddOrModifyTheme(string name, Theme theme)
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{
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if (loadedThemes.TryGetValue(name, out _))
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{
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if (theme.ThemeDictionary != null)
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{
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loadedThemes[name].ThemeDictionary = theme.ThemeDictionary;
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}
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if (theme.Waifus?.Background != null)
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{
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if (loadedThemes[name].Waifus is null) loadedThemes[name].Waifus = new Waifus();
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loadedThemes[name].Waifus.Background = theme.Waifus.Background;
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}
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if (theme.Waifus?.Sidebar != null)
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{
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if (loadedThemes[name].Waifus is null) loadedThemes[name].Waifus = new Waifus();
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loadedThemes[name].Waifus.Sidebar = theme.Waifus.Sidebar;
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}
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if (!string.IsNullOrEmpty(theme.VideoLocation))
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{
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loadedThemes[name].VideoLocation = theme.VideoLocation;
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}
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}
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else
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{
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loadedThemes.Add(name, theme);
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}
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}
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/// <summary>
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/// Loads themes from pre-packged zips.
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/// </summary>
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/// <param name="directory">Theme directory</param>
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/// <param name="name">Theme name</param>
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/// <param name="extension">Theme extension</param>
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private static Theme LoadZipTheme(string directory, string name, string extension)
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{
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Waifus waifus = new Waifus();
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ResourceDictionary dictionary = null;
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using (FileStream stream = new FileStream(Path.Combine(directory, name + extension), FileMode.Open, FileAccess.Read))
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using (ZipArchive archive = new ZipArchive(stream))
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{
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foreach (ZipArchiveEntry file in archive.Entries)
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{
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bool isPng = file.Name.EndsWith(".png", StringComparison.OrdinalIgnoreCase);
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bool isSidePng = file.Name.EndsWith(".side.png", StringComparison.OrdinalIgnoreCase);
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bool isXaml = file.Name.EndsWith(".xaml", StringComparison.OrdinalIgnoreCase);
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if (isPng && !isSidePng)
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{
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waifus.Background = GetImageFromStream(Utils.StreamToArray(file.Open()));
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}
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if (isSidePng)
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{
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waifus.Sidebar = GetImageFromStream(Utils.StreamToArray(file.Open()));
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}
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string videoExtension = $".{file.Name.Split('.').Last()}";
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if (supportedVideoExtensions.Contains(videoExtension))
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{
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string videoName = $"{ThemeDirectory}\\{name}\\_{name}{videoExtension}";
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Directory.CreateDirectory($"{ThemeDirectory}\\{name}");
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if (File.Exists(videoName) == false)
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{
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file.ExtractToFile(videoName, false);
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}
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else
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{
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/*
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* Check to see if the lengths of each file are different. If they are, overwrite what currently exists.
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* The reason we are also checking LoadedTheme against the name variable is to prevent overwriting a file that's
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* already being used by VRCMelonAssistant and causing a System.IO.IOException.
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*/
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FileInfo existingInfo = new FileInfo(videoName);
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if (existingInfo.Length != file.Length && LoadedTheme != name)
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{
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file.ExtractToFile(videoName, true);
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}
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}
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}
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if (isXaml && loadedThemes.ContainsKey(name) == false)
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{
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try
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{
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dictionary = (ResourceDictionary)XamlReader.Load(file.Open());
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}
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catch (Exception ex)
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{
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string message = string.Format((string)Application.Current.FindResource("Themes:FailedToLoadXaml"), name, ex.Message);
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MessageBox.Show(message);
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}
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}
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}
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}
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Theme theme = new Theme(name, dictionary)
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{
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Waifus = waifus
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};
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return theme;
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}
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/// <summary>
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/// Returns a BeatmapImage from a byte array.
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/// </summary>
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/// <param name="array">byte array containing an image.</param>
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/// <returns></returns>
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private static BitmapImage GetImageFromStream(byte[] array)
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{
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using (var mStream = new MemoryStream(array))
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{
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BitmapImage image = new BitmapImage();
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image.BeginInit();
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image.CacheOption = BitmapCacheOption.OnLoad;
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image.StreamSource = mStream;
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image.EndInit();
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if (image.CanFreeze) image.Freeze();
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return image;
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}
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}
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private static BitmapImage GetImageFromEmbeddedResources(string themeName, string imageName)
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{
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var assembly = Assembly.GetExecutingAssembly();
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var resourceNames = assembly.GetManifestResourceNames();
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var desiredResourceName = $"VRCMelonAssistant.Themes.{themeName}.{imageName}.png";
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// Don't attempt to access non-existent manifest resources
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if (!resourceNames.Contains(desiredResourceName))
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{
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return null;
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}
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try
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{
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using (Stream stream = assembly.GetManifestResourceStream(desiredResourceName))
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{
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byte[] imageBytes = new byte[stream.Length];
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stream.Read(imageBytes, 0, (int)stream.Length);
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return GetImageFromStream(imageBytes);
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}
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}
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catch { return null; } //We're going to ignore errors here because backgrounds/sidebars should be optional.
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}
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/// <summary>
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/// Applies waifus from currently loaded Theme.
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/// </summary>
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private static void ApplyWaifus()
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{
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Waifus waifus = loadedThemes[LoadedTheme].Waifus;
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if (waifus?.Background is null)
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{
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MainWindow.Instance.BackgroundImage.Opacity = 0;
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}
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else
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{
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MainWindow.Instance.BackgroundImage.Opacity = 1;
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MainWindow.Instance.BackgroundImage.ImageSource = waifus.Background;
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}
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if (waifus?.Sidebar is null)
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{
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MainWindow.Instance.SideImage.Visibility = Visibility.Hidden;
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}
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else
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{
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MainWindow.Instance.SideImage.Visibility = Visibility.Visible;
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MainWindow.Instance.SideImage.Source = waifus.Sidebar;
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}
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}
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/// <summary>
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/// Reload the icon colors for the About, Info, Options, and Mods buttons from the currently loaded theme.
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/// </summary>
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private static void ReloadIcons()
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{
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ResourceDictionary icons = Application.Current.Resources.MergedDictionaries.First(x => x.Source?.ToString() == "Resources/Icons.xaml");
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ChangeColor(icons, "AboutIconColor", "heartDrawingGroup");
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ChangeColor(icons, "InfoIconColor", "info_circleDrawingGroup");
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ChangeColor(icons, "OptionsIconColor", "cogDrawingGroup");
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ChangeColor(icons, "ModsIconColor", "microchipDrawingGroup");
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ChangeColor(icons, "LoadingIconColor", "loadingOuterDrawingGroup");
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}
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/// <summary>
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/// Change the color of an image from the loaded theme.
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/// </summary>
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/// <param name="icons">ResourceDictionary that contains the image.</param>
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/// <param name="ResourceColorName">Resource name of the color to change.</param>
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/// <param name="DrawingGroupName">DrawingGroup name for the image.</param>
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private static void ChangeColor(ResourceDictionary icons, string ResourceColorName, string DrawingGroupName)
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{
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Application.Current.Resources[ResourceColorName] = loadedThemes[LoadedTheme].ThemeDictionary[ResourceColorName];
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((GeometryDrawing)((DrawingGroup)icons[DrawingGroupName]).Children[0]).Brush = (Brush)Application.Current.Resources[ResourceColorName];
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}
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private class Waifus
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{
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public BitmapImage Background = null;
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public BitmapImage Sidebar = null;
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}
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private class Theme
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{
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public string Name;
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public ResourceDictionary ThemeDictionary;
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public Waifus Waifus = null;
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public string VideoLocation = null;
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public Theme(string name, ResourceDictionary dictionary)
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{
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Name = name;
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|
ThemeDictionary = dictionary;
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|
}
|
|
}
|
|
}
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|
}
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