protected void SetItemThumbnail(ImageBuffer thumbnail)
{
if (thumbnail != null)
{
// Resize canvas to target as fallback
if (thumbnail.Width < thumbWidth || thumbnail.Height < thumbHeight)
{
thumbnail = ListView.ResizeCanvas(thumbnail, thumbWidth, thumbHeight);
}
else if (thumbnail.Width > thumbWidth || thumbnail.Height > thumbHeight)
{
thumbnail = LibraryProviderHelpers.ResizeImage(thumbnail, thumbWidth, thumbHeight);
}
if (GuiWidget.DeviceScale != 1)
{
thumbnail = thumbnail.CreateScaledImage(GuiWidget.DeviceScale);
}
// TODO: Resolve and implement
// Allow the container to draw an overlay - use signal interface or add method to interface?
//var iconWithOverlay = ActiveContainer.DrawOverlay()
if (thumbnail != null &&
this.imageWidget != null &&
(this.imageWidget.Image == null ||
!thumbnail.Equals(this.imageWidget.Image, 5)))
{
this.imageWidget.Image = thumbnail;
this.ImageSet?.Invoke(this, null);
this.Invalidate();
}
}
}
public Task <ImageBuffer> GetThumbnail(ILibraryItem item, int width, int height)
{
return(Task.Run <ImageBuffer>(async() =>
{
var thumbnail = await LoadImage(item);
if (thumbnail != null)
{
thumbnail = LibraryProviderHelpers.ResizeImage(thumbnail, width, height);
// Cache library thumbnail
AggContext.ImageIO.SaveImageData(
ApplicationController.Instance.Thumbnails.CachePath(item, width, height),
thumbnail);
}
return thumbnail;
}));
}