public static IModelIconExtractor <IEntryModel> Create(IModelIconExtractor <IEntryModel> baseExtractor,
Func <IEntryModel, string> keyFunc,
Func <IEntryModel, string> text2DrawFunc, System.Drawing.Color color)
{
return(ModelIconExtractor <IEntryModel> .FromTaskFuncCachable(
keyFunc,
em => getIcon(baseExtractor, em, text2DrawFunc, color)
));
}
public static async Task <ImageSource> GetIconForModelAsync(this IModelIconExtractor <IEntryModel> extractor,
IEntryModel model, CancellationToken ct)
{
byte[] bytes = await extractor.GetIconBytesForModelAsync(model, ct);
ct.ThrowIfCancellationRequested();
return(bytes == null ?
new BitmapImage() :
FileExplorer.WPF.Utils.BitmapSourceUtils.CreateBitmapSourceFromBitmap(bytes));
}
private static async Task <byte[]> getIcon(IModelIconExtractor <IEntryModel> baseExtractor, IEntryModel em,
Func <IEntryModel, string> text2DrawFunc, System.Drawing.Color color)
{
if (em != null && !String.IsNullOrEmpty(em.FullPath))
{
byte[] baseBytes = await baseExtractor.GetIconBytesForModelAsync(em, CancellationToken.None);
Bitmap baseBitmap =
new Bitmap(new MemoryStream(baseBytes));
using (Graphics g = Graphics.FromImage(baseBitmap))
{
g.TextRenderingHint = System.Drawing.Text.TextRenderingHint.AntiAlias;
string text = text2DrawFunc(em);
Font font = new Font("Comic Sans MS", Math.Max(baseBitmap.Width / 5, 1),
System.Drawing.FontStyle.Bold | System.Drawing.FontStyle.Italic);
float height = g.MeasureString(text, font).Height;
float rightOffset = baseBitmap.Width / 5;
//if (size == IconSize.small)
//{
// font = new Font("Arial", 5, System.Drawing.FontStyle.Bold);
// height = g.MeasureString(ext, font).Height;
// rightOffset = 0;
//}
g.DrawString(text, font,
new System.Drawing.SolidBrush(color),
new RectangleF(0, baseBitmap.Height - height, baseBitmap.Width - rightOffset, height),
new StringFormat(StringFormatFlags.DirectionRightToLeft));
return(baseBitmap.ToByteArray());
}
}
return(new byte[] { });
}
