/// <summary>
/// Convert a <see cref="IItem"/> into an image representation.
/// </summary>
/// <param name="value"></param>
/// <param name="targetType"></param>
/// <param name="parameter"></param>
/// <param name="culture"></param>
/// <returns></returns>
public object Convert(object value, Type targetType,
object parameter, CultureInfo culture)
{
var item = value as IItem;
if (item == null)
{
return(Binding.DoNothing);
}
System.Windows.Media.ImageSource displayIcon = null;
try
{
// a folder can be represented with a seperate icon for its expanded state
if (item.ItemType == FSItemType.Folder)
{
displayIcon = IconExtractor.GetFolderIcon(item.ItemPath,
item.IsExpanded).ToImageSource();
}
else
{
displayIcon = IconExtractor.GetFileIcon(item.ItemPath).ToImageSource();
}
}
catch
{
}
return(displayIcon);
}
/// <summary>
/// Ask the shell to feed us the appropriate icon for the given file, but
/// first try looking in our cache to see if we've already loaded it.
/// </summary>
private int ExtractIconIfNecessary(String path)
{
Icon icon;
Size size = GetSmallIconSize();
String ext = Path.GetExtension(path);
if (String.IsNullOrEmpty(ext))
{
ext = "folder";
}
if (this.imageList.Images[ext] != null)
{
return(this.imageList.Images.IndexOfKey(ext));
}
else
{
if (File.Exists(path))
{
icon = IconExtractor.GetFileIcon(path, false, true);
}
else
{
icon = IconExtractor.GetFolderIcon(path, false, true);
}
Image image = ImageKonverter.ImageResize(icon.ToBitmap(), size.Width, size.Height);
this.imageList.Images.Add(ext, image); icon.Dispose(); image.Dispose();
return(this.imageList.Images.Count - 1);
}
}
/// <summary>
/// Assign a certain icon to this item.
/// </summary>
/// <param name="src"></param>
public void SetDisplayIcon(ImageSource src = null)
{
if (src == null)
{
this.DisplayIcon = IconExtractor.GetFolderIcon(this.FullPath, true).ToImageSource();
}
else
{
this.DisplayIcon = src;
}
}
/// <summary>
/// Ask the shell to feed us the appropriate icon for the given file, but
/// first try looking in our cache to see if we've already loaded it.
/// </summary>
private int ExtractIconIfNecessary(String path)
{
Icon icon;
Size size = GetSmallIconSize();
if (File.Exists(path))
{
icon = IconExtractor.GetFileIcon(path, false, true);
}
else
{
icon = IconExtractor.GetFolderIcon(path, false, true);
}
Image image = ImageKonverter.ImageResize(icon.ToBitmap(), size.Width, size.Height);
this.imageList.Images.Add(image); icon.Dispose(); image.Dispose();
return(this.imageList.Images.Count - 1);
}
