Files
EnvelopeGenerator/EnvelopeGenerator.Application/Common/Interfaces/Doc/IPdfPageImageRenderer.cs
TekH 93142a56f7 Add signature ink handling and DevExpress integration
Introduced `ISignatureInkPayload` interface to standardize signature ink data and metadata. Updated `DocReceiverElementDto` and `DocReceiverElement` to implement this interface. Enhanced `IPdfPageImageRenderer` with methods for signature preview generation and image format validation.

Replaced `PdfSharp` with `DevExpress` for PDF rendering in `ReceiverSignedPage.razor`. Added `DevSignatureInkController` with endpoints for downloading raw and composed signature images. Updated project files to remove `SixLabors.ImageSharp` and integrate DevExpress.

Added configuration for development endpoints in `appsettings.json`. Improved exception handling, validation, and code maintainability.
2026-10-19 14:27:21 +02:00

54 lines
1.5 KiB
C#

using DigitalData.Core.Exceptions;
using EnvelopeGenerator.Application.Common.Dto;
using EnvelopeGenerator.Domain.Interfaces;
namespace EnvelopeGenerator.Application.Common.Interfaces.Doc;
/// <summary>
///
/// </summary>
public interface IPdfPageImageRenderer
{
/// <summary>
///
/// </summary>
/// <param name="pdfBytes"></param>
/// <param name="cancellationToken"></param>
/// <returns></returns>
Task<IReadOnlyList<PdfPageImageDto>> RenderPagesAsImagesAsync(byte[] pdfBytes, CancellationToken cancellationToken = default);
/// <summary>
///
/// </summary>
/// <param name="element"></param>
/// <returns></returns>
byte[] ComposeSignaturePreviewPng(ISignatureInkPayload element);
/// <summary>
///
/// </summary>
/// <param name="bytes"></param>
/// <returns></returns>
public bool IsSupportedImageFormat(byte[] bytes);
}
/// <summary>
///
/// </summary>
public static class PdfPageImageRendererExtensions
{
/// <summary>
///
/// </summary>
/// <param name="renderer"></param>
/// <param name="inkBytes"></param>
/// <returns></returns>
/// <exception cref="BadRequestException"></exception>
public static byte[] EnsureSupportedImageBytes(this IPdfPageImageRenderer renderer, byte[] inkBytes)
{
if (!renderer.IsSupportedImageFormat(inkBytes))
throw new BadRequestException("Only PNG and JPEG signature formats are supported.");
return inkBytes;
}
}