private static DrawingExtensionBuilder AddDrawers(this DrawingExtensionBuilder builder)
{
builder.TryAddOrReplaceService <ISavingDrawer, InternalSavingDrawer>();
builder.TryAddOrReplaceService <IScalingDrawer, InternalScaleDrawer>();
builder.TryAddOrReplaceService <IWatermarkDrawer, InternalWatermarkDrawer>();
return(builder);
}
static DrawingExtensionBuilderHelper()
{
if (_builder is null)
{
var services = new ServiceCollection();
_builder = services.AddLibrameCore().AddDrawing();
}
if (_services is null)
{
_services = _builder.Services.BuildServiceProvider();
}
}
/// <summary>
/// 注册 Librame 图画扩展构建器。
/// </summary>
/// <param name="parentBuilder">给定的 <see cref="IExtensionBuilder"/>。</param>
/// <param name="setupOptions">给定可用于设置 <see cref="DrawingExtensionOptions"/> 选项的动作（可选；为空则不设置）。</param>
/// <param name="configuration">给定可用于 <see cref="DrawingExtensionOptions"/> 选项的配置对象（可选；为空则不配置）。</param>
/// <returns>返回 <see cref="DrawingExtensionOptions"/>。</returns>
public static DrawingExtensionBuilder AddDrawing(this IExtensionBuilder parentBuilder,
Action <DrawingExtensionOptions>?setupOptions = null, IConfiguration?configuration = null)
{
// 配置扩展选项
parentBuilder.ConfigureExtensionOptions(setupOptions, configuration);
var builder = new DrawingExtensionBuilder(parentBuilder);
builder
.AddDrawers()
.AddVerification();
return(builder);
}
private static DrawingExtensionBuilder AddVerification(this DrawingExtensionBuilder builder)
{
builder.TryAddOrReplaceService <ICaptchaGenerator, InternalCaptchaGenerator>();
return(builder);
}
