public override void Initialize()
{
_serviceprovider_sys = this.Site;
IVsFontAndColorCacheManager mgr = this.GetService(typeof(SVsFontAndColorCacheManager)) as IVsFontAndColorCacheManager;
mgr.ClearAllCaches();
}
private void ValidateFontAndColorCacheManagerIsUpToDate()
{
IVsFontAndColorCacheManager cacheManager =
(IVsFontAndColorCacheManager)GetService(typeof(SVsFontAndColorCacheManager));
if (cacheManager == null)
{
return;
}
bool alreadyInitialized = false;
try
{
const string registryValueName = "InstalledVersion";
string expectedVersion = Assembly.GetExecutingAssembly().GetName().Version.ToString();
using (RegistryKey rootKey = UserRegistryRoot)
using (RegistryKey ourKey = rootKey.CreateSubKey("NShader"))
{
if (ourKey != null)
{
object registryValue = ourKey.GetValue(registryValueName);
string initializedVersion = Convert.ToString(registryValue, CultureInfo.InvariantCulture);
alreadyInitialized = (initializedVersion == expectedVersion);
ourKey.SetValue(registryValueName, expectedVersion, RegistryValueKind.String);
}
}
}
// ReSharper disable EmptyGeneralCatchClause
catch
// ReSharper restore EmptyGeneralCatchClause
{
// Ignore any errors since it's not a big deal if we can't read
// this setting. We just always refresh the cache in that case.
}
// Actually refresh the Fonts and Colors cache now if we detected we have
// to do so.
if (alreadyInitialized)
{
return;
}
ErrorHandler.ThrowOnFailure(cacheManager.ClearAllCaches());
Guid categoryGuid = Guid.Empty;
ErrorHandler.ThrowOnFailure(cacheManager.RefreshCache(ref categoryGuid));
categoryGuid = new Guid("a27b4e24-a735-4d1d-b8e7-9716e1e3d8e0");
ErrorHandler.ThrowOnFailure(cacheManager.RefreshCache(ref categoryGuid));
}
private void ValidateFontAndColorCacheManagerIsUpToDate()
{
// The Fonts and Colors cache has to be refreshed after each marker change
// (during development) and of course after install/uninstall.
// To identify when we have to refresh the cache we store a custom value
// in the Visual Studio registry hive. Downsides of this approach:
//
// 1. The cache is not refreshed until the package is loaded for the
// first time. That means that our text markers don't show up in
// the Fonts and Colors settings after install. They will only
// show up after the first solution has been opened.
//
// 2. Since this code is part of the package we can't execute it
// after uninstall. That means that the user will see our markers
// in the Fonts and Colors settings dialog even after he has
// uninstalled the package. That is very ugly!
IVsFontAndColorCacheManager cacheManager = (IVsFontAndColorCacheManager)GetService(typeof(SVsFontAndColorCacheManager));
if (cacheManager == null)
{
return;
}
// We need to know whether we already refreshed the fonts and colors
// cache to reflect the text markers we registered. We have to do this
// on a per-user basis.
bool alreadyInitialized = false;
try
{
string registryValueName = "InstalledVersion";
string expectedVersion = Assembly.GetExecutingAssembly().GetName().Version.ToString();
using (RegistryKey rootKey = UserRegistryRoot)
using (RegistryKey ourKey = rootKey.CreateSubKey(ProductName))
{
object registryValue = ourKey.GetValue(registryValueName);
string initializedVersion = Convert.ToString(registryValue, CultureInfo.InvariantCulture);
alreadyInitialized = (initializedVersion == expectedVersion);
ourKey.SetValue(registryValueName, expectedVersion, RegistryValueKind.String);
}
}
catch
{
// Ignore any errors since it's not a big deal if we can't read
// this setting. We just always refresh the cache in that case.
}
// Actually refresh the Fonts and Colors cache now if we detected we have
// to do so.
if (!alreadyInitialized)
{
ErrorHandler.ThrowOnFailure(cacheManager.ClearAllCaches());
Guid categoryGuid = Guid.Empty;
ErrorHandler.ThrowOnFailure(cacheManager.RefreshCache(ref categoryGuid));
categoryGuid = Guids.GuidFontsAndColorsTextEditor;
ErrorHandler.ThrowOnFailure(cacheManager.RefreshCache(ref categoryGuid));
}
}
