private FrmPopoutClusterSheet(Size size, List <Visualisable> items, IPreviewProvider previewProvider)
: this()
{
this._imageSize = size;
this._items = items;
this._previewProvider = previewProvider;
this.imageList1.ImageSize = this._imageSize;
this.listView1.TileSize = this._imageSize;
this.listView1.VirtualListSize = items.Count;
this.imageList1.Images.Add(ChartHelperForClusters.CreatePlaceholderBitmap(null, this._imageSize));
}
private Image GeneratePreviewImage(object item)
{
if (!this.EnablePreviews)
{
return(UiControls.GetImage(item));
}
Image img = this._previewProvider.ProvidePreview(this._imageList.ImageList.ImageSize, item);
if (img == null)
{
return(ChartHelperForClusters.CreatePlaceholderBitmap(item, this._imageList.ImageList.ImageSize));
}
return(img);
}
private int GeneratePreviewImage(Visualisable item)
{
int index;
if (item.Hidden)
{
return(0);
}
if (!this._imgListPreviewIndexes.TryGetValue(item, out index))
{
Image img = this._previewProvider.ProvidePreview(this._imageSize, item) ??
ChartHelperForClusters.CreatePlaceholderBitmap(item, this._imageSize);
index = this.imageList1.Images.Count;
this.imageList1.Images.Add(item.DisplayName, img);
this._imgListPreviewIndexes.Add(item, index);
}
return(index);
}