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feature: document template QR Code image extensions

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This commit is contained in:
Gary Sharp
2023-10-12 15:51:33 +11:00
parent 7353405b16
commit a3fb09440d
17 changed files with 299 additions and 65 deletions
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Disco.BI/BI/Interop/Pdf/PdfGenerator.cs
+21 -5
View File
@@ -1,8 +1,8 @@
using Disco.BI.Extensions;
using Disco.Data.Repository;
using Disco.Models.BI.Expressions;
using Disco.Models.Repository;
using Disco.Models.Services.Documents;
using Disco.Models.Services.Expressions.Extensions;
using Disco.Services;
using Disco.Services.Documents;
using Disco.Services.Expressions;
@@ -270,14 +270,15 @@ namespace Disco.BI.Interop.Pdf
// Encode to QRCode byte array
var pageUniqueIdWidth = (int)pdfFieldPosition.position.Width;
var pageUniqueIdHeight = (int)pdfFieldPosition.position.Height;
var pageUniqueIdEncoded = QRCodeBinaryEncoder.Encode(pageUniqueIdBytes, pageUniqueIdWidth, pageUniqueIdHeight);
var pageUniqueIdEncoded = QRCodeBinaryEncoder.Encode(pageUniqueIdBytes, out var qrWidth, out var qrHeight);
// Encode byte array to Image
var pageUniqueIdImageData = CCITTG4Encoder.Compress(pageUniqueIdEncoded, pageUniqueIdWidth, pageUniqueIdHeight);
var pageUniqueIdImage = iTextSharp.text.Image.GetInstance(pageUniqueIdWidth, pageUniqueIdHeight, false, 256, 1, pageUniqueIdImageData, null);
var pageUniqueIdImageData = CCITTG4Encoder.Compress(pageUniqueIdEncoded, qrWidth, qrHeight);
var pageUniqueIdImage = iTextSharp.text.Image.GetInstance(qrWidth, qrHeight, false, 256, 1, pageUniqueIdImageData, null);
// Add to the pdf page
pageUniqueIdImage.SetAbsolutePosition(pdfFieldPosition.position.Left, pdfFieldPosition.position.Bottom);
pageUniqueIdImage.ScaleToFit(pdfFieldPosition.position.Width, pdfFieldPosition.position.Height);
pdfStamper.GetOverContent(pdfFieldPosition.page).AddImage(pageUniqueIdImage);
}
// Hide Fields
@@ -315,7 +316,22 @@ namespace Disco.BI.Interop.Pdf
for (int pdfFieldOrdinal = 0; pdfFieldOrdinal < fields.Size; pdfFieldOrdinal++)
{
AcroFields.FieldPosition pdfFieldPosition = pdfFieldPositions[pdfFieldOrdinal];
iTextSharp.text.Image pdfImage = iTextSharp.text.Image.GetInstance(imageResult.GetImage((int)(pdfFieldPosition.position.Width * 1.6), (int)(pdfFieldPosition.position.Height * 1.6)));
iTextSharp.text.Image pdfImage;
var imageWidth = (int)(pdfFieldPosition.position.Width * 1.6);
var imageHeight = (int)(pdfFieldPosition.position.Height * 1.6);
if (imageResult.Format == ImageExpressionFormat.Jpeg || imageResult.Format == ImageExpressionFormat.Png)
{
pdfImage = iTextSharp.text.Image.GetInstance(imageResult.GetImage(imageWidth, imageHeight));
}
else if (imageResult.Format == ImageExpressionFormat.CcittG4)
{
var imageData = imageResult.GetImage(out imageWidth, out imageHeight);
pdfImage = iTextSharp.text.Image.GetInstance(imageWidth, imageHeight, false, 256, 1, imageData.GetBuffer(), null);
}
else
throw new NotSupportedException($"Unexpected image format {imageResult.Format}");
pdfImage.SetAbsolutePosition(pdfFieldPosition.position.Left, pdfFieldPosition.position.Bottom);
pdfImage.ScaleToFit(pdfFieldPosition.position.Width, pdfFieldPosition.position.Height);
pdfStamper.GetOverContent(pdfFieldPosition.page).AddImage(pdfImage);
Disco.BI/BI/Interop/Pdf/Utilities.cs
+7
View File
@@ -1,5 +1,7 @@
using iTextSharp.text;
using iTextSharp.text.pdf;
using iTextSharp.text.pdf.codec;
using System;
using System.Collections.Generic;
using System.IO;
@@ -7,6 +9,11 @@ namespace Disco.BI.Interop.Pdf
{
public static class Utilities
{
public static Func<byte[], int, int, byte[]> GetCCITTG4EncoderCompressDelegate()
{
return CCITTG4Encoder.Compress;
}
public static Stream JoinPdfs(bool InsertBlankPages, List<Stream> Pdfs)
{
if (Pdfs.Count == 0)