BackgroundBuilder/Services/IImageService.cs

27 lines
804 B
C#

using System.Threading.Tasks;
using System.Windows;
using System.Windows.Media.Imaging;
namespace BackgroundBuilder.Services
{
public interface IImageService
{
/// <summary>
/// Loads an image from disk.
/// </summary>
Task<BitmapImage> LoadAsync(string path);
/// <summary>
/// Renders the background + overlay and writes two PNGs:
/// • primaryPath: composite of background+overlay
/// • overlayPath (optional): overlay alone
/// Returns the actual paths written.
/// </summary>
Task<(string primaryPath, string? overlayPath)> SaveAsync(
FrameworkElement overlay,
BitmapImage background,
string primaryPath,
string? overlayPath = null);
}
}