internal void UpdateThumbnails(List <Image>?th)
{
if (th == null)
{
return;
}
Thumbnail = th;
ThumbnailUpdated?.Invoke();
}
private void MakeThumbnail(Database db)
{
try
{
lock (this)
{
if (_thumbnail != null || _image == null)
{
return;
}
var imageRect = new RectangleF(new PointF(0.0f, 0.0f), _image.Size);
if (imageRect.Width > HistoryList.ThumbnailWidth)
{
imageRect = imageRect.ScaleRectWidth(HistoryList.ThumbnailWidth);
}
if (imageRect.Height > HistoryList.ThumbnailHeight)
{
imageRect = imageRect.ScaleRectHeight(HistoryList.ThumbnailHeight);
}
_thumbnail = new CompressedImage(new Bitmap(_image, (int)imageRect.Width, (int)imageRect.Height));
ThumbnailUpdated?.Invoke(this, EventArgs.Empty);
}
using (var cmd = db.CreateCommand("update img set thumb = @thumb where path = @path"))
{
cmd.Parameters.AddWithValue("@thumb", _thumbnail.Data);
cmd.Parameters.AddWithValue("@path", _location);
cmd.ExecuteNonQuery();
}
using (var cmd = db.CreateCommand("update history set thumb = @thumb where path = @path"))
{
cmd.Parameters.AddWithValue("@thumb", _thumbnail.Data);
cmd.Parameters.AddWithValue("@path", _location);
cmd.ExecuteNonQuery();
}
}
catch (Exception ex)
{
Log.Write(ex, "Error when creating image thumbnail.");
_thumbnail = null;
}
}