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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using Tango.Settings;
namespace Tango.MachineStudio.Common.Resources
{
/// <summary>
/// The shared resource dictionary is a specialized resource dictionary
/// that loads it content only once. If a second instance with the same source
/// is created, it only merges the resources from the cache.
/// </summary>
public class SharedResourceDictionary : ResourceDictionary
{
/// <summary>
/// Internal cache of loaded dictionaries
/// </summary>
public static Dictionary<Uri, ResourceDictionary> _sharedDictionaries =
new Dictionary<Uri, ResourceDictionary>();
/// <summary>
/// Local member of the source uri
/// </summary>
private Uri _sourceUri;
/// <summary>
/// Gets or sets the uniform resource identifier (URI) to load resources from.
/// </summary>
public new Uri Source
{
get { return _sourceUri; }
set
{
_sourceUri = value;
var settings = SettingsManager.Default.GetOrCreate<MachineStudioSettings>();
//add current theme
MachineStudioTheme wTheme = settings.Theme;
if ((wTheme == MachineStudioTheme.Dark && value.LocalPath.Contains("Light")) || (wTheme == MachineStudioTheme.Light && value.LocalPath.Contains("Dark")))
return;
if (!_sharedDictionaries.ContainsKey(value))
{
// If the dictionary is not yet loaded, load it by setting
// the source of the base class
base.Source = value;
// add it to the cache
_sharedDictionaries.Add(value, this);
}
else
{
// If the dictionary is already loaded, get it from the cache
MergedDictionaries.Add(_sharedDictionaries[value]);
}
}
}
}
}
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