private void SetThumbnail(Image image)
{
if (Disposing) return;
if (IsDisposed)
return;
if (!IsHandleCreated)
return;
if (this.InvokeRequired)
{
SetThumbnailDelegate d = new SetThumbnailDelegate(SetThumbnail);
if (IsDisposed || _thumbnailWorker == null || !IsHandleCreated)
return;
this.Invoke(d, new object[] {image});
}
else
{
lock (this)
{
if (LargeImageList == null)
{
Debug.Fail("(Only seeing this in the debug version) Thumbnail viewer worker still woking after the form was closed.");
return;
}
LargeImageList.Images.Add(image); //Images[i].repl
int index = LargeImageList.Images.Count - 1;
Items[index - 1].ImageIndex = index;
}
}
}
private void SetThumbnail(Image image, string key)
{
if (Disposing)
{
return;
}
if (this.InvokeRequired && (myWorker.ThreadState == ThreadState.Running || myWorker.ThreadState == ThreadState.Background))
{
SetThumbnailDelegate d = new SetThumbnailDelegate(SetThumbnail);
this.Invoke(d, new object[] { image, key });
}
else
{
try
{
int index = 0;
LargeImageList.Images.Add(image); //Images[i].repl
index = LargeImageList.Images.Count - 1;
Items[index - 1].ImageIndex = index;
}
catch (Exception ex)
{
System.Diagnostics.Debug.Assert(false);
return;
}
}
}
private void SetThumbnail(Image image)
{
if (Disposing)
{
return;
}
if (this.InvokeRequired)
{
SetThumbnailDelegate d = new SetThumbnailDelegate(SetThumbnail);
this.Invoke(d, new object[] { image });
}
else
{
LargeImageList.Images.Add(image);
int index = LargeImageList.Images.Count - 1;
Items[index - 1].ImageIndex = index;
}
}
private void SetThumbnail(Image image)
{
if (Disposing)
{
return;
}
if (IsDisposed)
{
return;
}
if (!IsHandleCreated)
{
return;
}
if (this.InvokeRequired)
{
SetThumbnailDelegate d = new SetThumbnailDelegate(SetThumbnail);
if (IsDisposed || _thumbnailWorker == null || !IsHandleCreated)
{
return;
}
this.Invoke(d, new object[] { image });
}
else
{
lock (this)
{
if (LargeImageList == null)
{
Debug.Fail("(Only seeing this in the debug version) Thumbnail viewer worker still woking after the form was closed.");
return;
}
LargeImageList.Images.Add(image); //Images[i].repl
int index = LargeImageList.Images.Count - 1;
Items[index - 1].ImageIndex = index;
}
}
}
private void SetThumbnail(Image image, string key)
{
if (Disposing)
{
return;
}
if (this.InvokeRequired)
{
SetThumbnailDelegate d = new SetThumbnailDelegate(SetThumbnail);
this.Invoke(d, new object[] { image, key });
}
else
{
try
{
int index = 0;
if (!LargeImageList.Images.ContainsKey(key))
{
LargeImageList.Images.Add(key, image); //Images[i].repl
index = LargeImageList.Images.Count - 1;
}
else
{
index = LargeImageList.Images.IndexOfKey(key);
}
Items[index - 1].ImageIndex = index;
}
catch (Exception ex)
{
System.Diagnostics.Debug.Assert(false);
return;
}
}
}
/// <summary>
/// Set the image thumbnail for specified list item. Note that we have to consider threading issues here.
/// </summary>
/// <param name="item">[in] the list item to</param>
/// <param name="thumbnail">[in] the image for specified list item</param>
/// <param name="cancel">[out] indicate if image loading is canceled</param>
private void SetListItemImage( ListViewItem item, Image thumbnail, out bool cancel)
{
if (this.InvokeRequired == false)
{
// cache image thumbnail
ImageInfo ii = (ImageInfo) item.Tag;
if (ii != null)
{
ii.Thumbnail = thumbnail;
// invalidate the item rectangle to ensure repaint
item.ListView.Invalidate(GetItemRect(item.Index));
}
cancel = (imageLoadingState == ImageLoadingState.CancelLoading);
}
else
{
// Add thumbnail on the thread that owns the control's underlying window handle.
SetThumbnailDelegate d = new SetThumbnailDelegate(SetListItemImage);
// Avoid boxing and losing our return value.
object inoutCancel = false;
BeginInvoke( d, new Object[] { item, thumbnail, inoutCancel });
cancel = (bool) inoutCancel;
}
}
