public static void ChangeTheme(Window window, Accent newAccent, Theme newTheme)
{
if (window == null)
{
throw new ArgumentNullException("window");
}
Tuple <Theme, Accent> oldThemeInfo = DetectTheme(window);
ChangeTheme(window.Resources, oldThemeInfo, newAccent, newTheme);
}
public static void ChangeTheme(Application app, Accent newAccent, Theme newTheme)
{
if (app == null)
{
throw new ArgumentNullException("app");
}
Tuple <Theme, Accent> oldThemeInfo = DetectTheme(app);
ChangeTheme(app.Resources, oldThemeInfo, newAccent, newTheme);
}
public static void ChangeTheme(ResourceDictionary resources, Accent newAccent, Theme newTheme)
{
if (resources == null)
{
throw new ArgumentNullException("resources");
}
ResourceDictionary newRd = (newTheme == Theme.Light) ? LightResource : DarkResource;
ApplyResourceDictionary(newAccent.Resources, resources);
ApplyResourceDictionary(newRd, resources);
}
private static void ChangeTheme(ResourceDictionary resources, Tuple <Theme, Accent> oldThemeInfo, Accent newAccent, Theme newTheme)
{
bool flag = false;
if (oldThemeInfo != null)
{
Func <ResourceDictionary, bool> predicate = null;
Accent oldAccent = oldThemeInfo.Item2;
if ((oldAccent != null) && (oldAccent.Name != newAccent.Name))
{
if (predicate == null)
{
predicate = d => d.Source == oldAccent.Resources.Source;
}
ResourceDictionary item = resources.MergedDictionaries.FirstOrDefault <ResourceDictionary>(predicate);
if (item != null)
{
resources.MergedDictionaries.Add(newAccent.Resources);
resources.MergedDictionaries.Remove(item);
flag = true;
}
}
Theme theme = oldThemeInfo.Item1;
if (theme != newTheme)
{
ResourceDictionary oldThemeResource = (theme == Theme.Light) ? LightResource : DarkResource;
ResourceDictionary dictionary2 = resources.MergedDictionaries.FirstOrDefault <ResourceDictionary>(d => d.Source == oldThemeResource.Source);
if (dictionary2 != null)
{
ResourceDictionary dictionary3 = (newTheme == Theme.Light) ? LightResource : DarkResource;
resources.MergedDictionaries.Add(dictionary3);
resources.MergedDictionaries.Remove(dictionary2);
flag = true;
}
}
}
else
{
ChangeTheme(resources, newAccent, newTheme);
flag = true;
}
if (flag)
{
OnThemeChanged(newAccent, newTheme);
}
}
internal static bool GetThemeFromResources(Theme presetTheme, ResourceDictionary dict, ref Tuple <Theme, Accent> detectedAccentTheme)
{
Theme theme = presetTheme;
Accent accent = null;
Accent accent2 = null;
accent2 = ((List <Accent>)DefaultAccents).Find(x => x.Resources.Source == dict.Source);
if (accent2 != null)
{
accent = accent2;
detectedAccentTheme = Tuple.Create <Theme, Accent>(theme, accent);
return(true);
}
foreach (ResourceDictionary dictionary in dict.MergedDictionaries)
{
if (GetThemeFromResources(presetTheme, dictionary, ref detectedAccentTheme))
{
return(true);
}
}
return(false);
}