public override void Perform(Tileset tileset, PreviewImageQuery query)
{
int desiredWidth = query.DesiredWidth;
int desiredHeight = query.DesiredHeight;
TilesetRenderInput input = tileset.RenderConfig.FirstOrDefault(c => c.SourceData != null);
Pixmap mainPixmap = (input != null) ? input.SourceData.Res : null;
PixelData layer = (mainPixmap != null) ? mainPixmap.MainLayer : null;
if (layer == null)
{
query.Result = new Bitmap(1, 1);
return;
}
float widthRatio = (float)layer.Width / (float)layer.Height;
layer = layer.CloneSubImage(0, 0, desiredWidth * 2, desiredHeight * 2);
layer.Rescale(desiredWidth, desiredHeight);
query.Result = layer.ToBitmap();
}
