/// <summary>
/// Gets a resource from the cache based on a specified native
/// pointer.
/// </summary>
///
/// <param name="nativePtr">
/// The native pointer corresponding to the resource to retrieve.
/// </param>
///
/// <returns>
/// A reference to a resource based on its corresponding native
/// pointer.
/// </returns>
protected T GetCachedResource(IntPtr nativePtr)
{
if (nativePtr == IntPtr.Zero)
{
return(null);
}
ZNativeResource resource = null;
if (!this._cache.TryGetValue(nativePtr, out resource))
{
return(null);
}
return(resource as T);
}
/// <summary>
/// Remove a resource from the cache.
/// </summary>
///
/// <param name="resource">
/// A reference to the resource to be removed.
/// </param>
protected void RemoveFromCache(ZNativeResource resource)
{
this._cache.Remove(resource.NativePtr);
}
////////////////////////////////////////////////////////////////////////
// Protected Methods
////////////////////////////////////////////////////////////////////////
/// <summary>
/// Adds a resource to the cache.
/// </summary>
///
/// <param name="resource">
/// The resource to be added to the cache.
/// </param>
protected void AddToCache(ZNativeResource resource)
{
this._cache.Add(resource.NativePtr, resource);
}