/// <summary>
/// Adds a virtual item to the cache.
/// </summary>
/// <param name="guid">The guid representing this item.</param>
/// <param name="adaptor">The adaptor for this item.</param>
/// <param name="key">The key of this item.</param>
/// <param name="thumbSize">Requested thumbnail size.</param>
/// <param name="thumb">Thumbnail image to add to cache.</param>
/// <param name="useEmbeddedThumbnails">UseEmbeddedThumbnails property of the owner control.</param>
/// <param name="autoRotate">AutoRotate property of the owner control.</param>
/// <param name="useWIC">Whether to use WIC.</param>
public void Add(Guid guid, ImageListView.ImageListViewItemAdaptor adaptor, object key, Size thumbSize, Image thumb, UseEmbeddedThumbnails useEmbeddedThumbnails, bool autoRotate, bool useWIC)
{
// Already cached?
CacheItem item = null;
if (thumbCache.TryGetValue(guid, out item))
{
if (item.Size == thumbSize && item.UseEmbeddedThumbnails == useEmbeddedThumbnails)
{
return;
}
}
// Resize
thumb = ThumbnailExtractor.FromImage(thumb, thumbSize, useEmbeddedThumbnails, autoRotate, useWIC);
// Add to cache
thumbCache.Add(guid, new CacheItem(guid, thumbSize, thumb, CacheState.Cached, useEmbeddedThumbnails, autoRotate, useWIC));
// Add to disk cache
using (MemoryStream stream = new MemoryStream())
{
string diskCacheKey = GetKey(guid, thumbSize, useEmbeddedThumbnails, autoRotate, useWIC);
thumb.Save(stream, System.Drawing.Imaging.ImageFormat.Png);
diskCache.Write(diskCacheKey, stream);
}
// Raise the cache events
if (mImageListView != null)
{
mImageListView.OnThumbnailCachedInternal(guid, thumb, thumbSize, true);
mImageListView.Refresh();
}
}
/// <summary>
/// Initializes a new instance of the <see cref="CacheRequest"/> class.
/// </summary>
/// <param name="guid">The guid of the item.</param>
/// <param name="adaptor">The adaptor of this item.</param>
/// <param name="virtualItemKey">The virtual item key of this item.</param>
/// <param name="useWIC">Whether to use the Windows Imaging Component.</param>
public CacheRequest(Guid guid, ImageListView.ImageListViewItemAdaptor adaptor, object virtualItemKey, bool useWIC)
{
Guid = guid;
Adaptor = adaptor;
VirtualItemKey = virtualItemKey;
UseWIC = useWIC;
}
/// <summary>
/// Adds the virtual item image to the renderer cache queue.
/// </summary>
/// <param name="guid">The guid representing this item.</param>
/// <param name="adaptor">The adaptor of this item.</param>
/// <param name="key">The key of this item.</param>
/// <param name="thumbSize">Requested thumbnail size.</param>
/// <param name="useEmbeddedThumbnails">UseEmbeddedThumbnails property of the owner control.</param>
/// <param name="autoRotate">AutoRotate property of the owner control.</param>
/// <param name="useWIC">Whether to use WIC.</param>
public void AddToRendererCache(Guid guid, ImageListView.ImageListViewItemAdaptor adaptor, object key, Size thumbSize, UseEmbeddedThumbnails useEmbeddedThumbnails, bool autoRotate, bool useWIC)
{
// Already cached?
if (rendererItem != null && rendererItem.Guid == guid && rendererItem.Image != null && rendererItem.Size == thumbSize && rendererItem.UseEmbeddedThumbnails == useEmbeddedThumbnails && rendererItem.AutoRotate == autoRotate && rendererItem.UseWIC == useWIC)
{
return;
}
// Add to cache queue
RunWorker(new CacheRequest(guid, adaptor, key, thumbSize, useEmbeddedThumbnails, autoRotate, useWIC, RequestType.Renderer), 1);
}
/// <summary>
/// Initializes a new instance of the <see cref="CacheRequest"/> class
/// for use with a virtual item.
/// </summary>
/// <param name="guid">The guid of the ImageListViewItem.</param>
/// <param name="adaptor">The adaptor of this item.</param>
/// <param name="key">The public key for the virtual item.</param>
/// <param name="size">The size of the requested thumbnail.</param>
/// <param name="useEmbeddedThumbnails">UseEmbeddedThumbnails property of the owner control.</param>
/// <param name="autoRotate">AutoRotate property of the owner control.</param>
/// <param name="useWIC">Whether to use WIC.</param>
/// <param name="requestType">Type of this request.</param>
public CacheRequest(Guid guid, ImageListView.ImageListViewItemAdaptor adaptor, object key, Size size, UseEmbeddedThumbnails useEmbeddedThumbnails, bool autoRotate, bool useWIC, RequestType requestType)
{
Guid = guid;
VirtualItemKey = key;
Adaptor = adaptor;
Size = size;
UseEmbeddedThumbnails = useEmbeddedThumbnails;
AutoRotate = autoRotate;
UseWIC = useWIC;
RequestType = requestType;
}
/// <summary>
/// Adds a virtual item to the cache queue.
/// </summary>
/// <param name="guid">The guid representing this item.</param>
/// <param name="adaptor">he adaptor for this item.</param>
/// <param name="key">The key of this item.</param>
/// <param name="thumbSize">Requested thumbnail size.</param>
/// <param name="useEmbeddedThumbnails">UseEmbeddedThumbnails property of the owner control.</param>
/// <param name="autoRotate">AutoRotate property of the owner control.</param>
/// <param name="useWIC">Whether to use WIC.</param>
public void Add(Guid guid, ImageListView.ImageListViewItemAdaptor adaptor, object key, Size thumbSize, UseEmbeddedThumbnails useEmbeddedThumbnails, bool autoRotate, bool useWIC)
{
// Already cached?
CacheItem item = null;
if (thumbCache.TryGetValue(guid, out item))
{
if (item.Size == thumbSize && item.UseEmbeddedThumbnails == useEmbeddedThumbnails)
{
return;
}
}
// Add to cache queue
RunWorker(new CacheRequest(guid, adaptor, key, thumbSize, useEmbeddedThumbnails, autoRotate, useWIC, RequestType.Thumbnail));
}
/// <summary>
/// Adds the item to the cache queue.
/// </summary>
/// <param name="guid">Item guid.</param>
/// <param name="adaptor">The adaptor for this item.</param>
/// <param name="virtualItemKey">The virtual item key.</param>
/// <param name="useWIC">Whether to use the Windows Imaging Component.</param>
public void Add(Guid guid, ImageListView.ImageListViewItemAdaptor adaptor, object virtualItemKey, bool useWIC)
{
// Add to cache queue
RunWorker(new CacheRequest(guid, adaptor, virtualItemKey, useWIC));
}
