/// <summary>
/// Invoked by the worker thread to update item details.
/// </summary>
internal void UpdateDetailsInternal(Utility.ShellImageFileInfo info)
{
if (!isDirty)
{
return;
}
mDateAccessed = info.LastAccessTime;
mDateCreated = info.CreationTime;
mDateModified = info.LastWriteTime;
mFileSize = info.Size;
mFileType = info.TypeName;
mFilePath = info.DirectoryName;
mDimensions = info.Dimensions;
mResolution = info.Resolution;
// Exif tags
mImageDescription = info.ImageDescription;
mEquipmentModel = info.EquipmentModel;
mDateTaken = info.DateTaken;
mArtist = info.Artist;
mCopyright = info.Copyright;
mExposureTime = info.ExposureTime;
mFNumber = info.FNumber;
mISOSpeed = info.ISOSpeed;
mShutterSpeed = info.ShutterSpeed;
mAperture = info.ApertureValue;
mUserComment = info.UserComment;
isDirty = false;
}
/// <summary>
/// Updates file info for the image file represented by this item.
/// </summary>
private void UpdateFileInfo()
{
if (!isDirty)
{
return;
}
if (isVirtualItem)
{
if (mImageListView != null)
{
VirtualItemDetailsEventArgs e = new VirtualItemDetailsEventArgs(mVirtualItemKey);
mImageListView.RetrieveVirtualItemDetailsInternal(e);
UpdateDetailsInternal(e);
}
}
else
{
Utility.ShellImageFileInfo info = new Utility.ShellImageFileInfo(mFileName);
UpdateDetailsInternal(info);
}
isDirty = false;
}
/// <summary>
/// Used by the worker thread to read item data.
/// </summary>
private void DoWork()
{
while (!Stopping)
{
CacheItem item = null;
lock (lockObject)
{
// Wait until we have items waiting to be cached
if (toCache.Count == 0)
{
Monitor.Wait(lockObject);
}
// Get an item from the queue
if (toCache.Count != 0)
{
item = toCache.Dequeue();
// Is it being edited?
if (editCache.ContainsKey(item.Item.Guid))
{
item = null;
}
}
}
// Read file info
if (item != null)
{
if (item.IsVirtualItem)
{
if (mImageListView != null && mImageListView.IsHandleCreated && !mImageListView.IsDisposed)
{
VirtualItemDetailsEventArgs e = new VirtualItemDetailsEventArgs(item.VirtualItemKey);
mImageListView.RetrieveVirtualItemDetailsInternal(e);
mImageListView.Invoke(new UpdateVirtualItemDetailsDelegateInternal(
mImageListView.UpdateItemDetailsInternal), item.Item, e);
}
}
else
{
Utility.ShellImageFileInfo info = new Utility.ShellImageFileInfo(item.FileName);
// Update file info
if (!Stopping)
{
try
{
if (mImageListView != null && mImageListView.IsHandleCreated && !mImageListView.IsDisposed)
{
mImageListView.Invoke(new UpdateItemDetailsDelegateInternal(
mImageListView.UpdateItemDetailsInternal), item.Item, info);
}
}
catch (ObjectDisposedException)
{
if (!Stopping)
{
throw;
}
}
catch (InvalidOperationException)
{
if (!Stopping)
{
throw;
}
}
}
}
}
}
lock (lockObject)
{
stopped = true;
}
}