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feat(pdf): add overload for Page to apply design across all pages

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- Introduced Page(Action<PdfPage>) method to apply design logic to every page in the document
- Simplified Background method by replacing per-page iteration with new Page overload
- Improved readability and maintainability by removing duplicate page loop logic
This commit is contained in:
tekh 2025-09-29 15:43:55 +02:00
parent 6f31d7b1d0
commit 7cae9a5291
1 changed files with 12 additions and 7 deletions
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19
EnvelopeGenerator.PdfEditor/Pdf.cs
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@ -69,7 +69,15 @@ namespace EnvelopeGenerator.PdfEditor
{ {
var page = doc.GetPage(pageIndex); var page = doc.GetPage(pageIndex);
design(doc.GetPage(pageIndex)); design(doc.GetPage(pageIndex));
}); });
public Pdf<TInputStream, TOutputStream> Page(Action<PdfPage> design)
{
for (int i = 1; i <= _doc.GetNumberOfPages(); i++)
Page(i, design);
return this;
}
public Pdf<TInputStream, TOutputStream> Design(int pageIndex, Action<PdfCanvas> design) public Pdf<TInputStream, TOutputStream> Design(int pageIndex, Action<PdfCanvas> design)
=> Document(doc => => Document(doc =>
@ -84,14 +92,11 @@ namespace EnvelopeGenerator.PdfEditor
where TSignature : ISignature where TSignature : ISignature
{ {
// once per page // once per page
var pageIndexes = signatures.Select(signature => signature.Page).Distinct().OrderBy(index => index); Page(page =>
foreach(var pageIndex in pageIndexes)
{ {
var page = _doc.GetPage(pageIndex);
Rectangle pageSize = page.GetPageSize();
var canvas = new PdfCanvas(page); var canvas = new PdfCanvas(page);
canvas.ConcatMatrix(1, 0, 0, -1, 0, pageSize.GetHeight()); canvas.ConcatMatrix(1, 0, 0, -1, 0, page.GetPageSize().GetHeight());
} });
foreach (var signature in signatures) foreach (var signature in signatures)
Page(signature.Page, page => Page(signature.Page, page =>