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Add test with no optional content, return IReadOnlyDictionary<>, use pdfScanner in OC constructor

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This commit is contained in:
BobLd 2021-02-14 21:40:40 +00:00
parent 4cd1f60f5b
commit 3b1a7f79ca
4 changed files with 38 additions and 22 deletions
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12
src/UglyToad.PdfPig.Tests/Integration/OptionalContentTests.cs
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@ -6,6 +6,18 @@ namespace UglyToad.PdfPig.Tests.Integration
{
public class OptionalContentTests
{
[Fact]
public void NoMarkedOptionalContent()
{
using (var document = PdfDocument.Open(IntegrationHelpers.GetDocumentPath("AcroFormsBasicFields.pdf")))
{
var page = document.GetPage(1);
var oc = page.ExperimentalAccess.GetOptionalContents();
Assert.Equal(0, oc.Count);
}
}
[Fact]
public void MarkedOptionalContent()
{

27
src/UglyToad.PdfPig/Content/OptionalContentGroupElement.cs
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@ -1,5 +1,6 @@
using System;
using System.Collections.Generic;
using UglyToad.PdfPig.Tokenization.Scanner;
using UglyToad.PdfPig.Tokens;
namespace UglyToad.PdfPig.Content
@ -37,16 +38,16 @@ namespace UglyToad.PdfPig.Content
/// </summary>
public MarkedContentElement MarkedContent { get; }
internal OptionalContentGroupElement(MarkedContentElement markedContentElement)
internal OptionalContentGroupElement(MarkedContentElement markedContentElement, IPdfTokenScanner pdfTokenScanner)
{
MarkedContent = markedContentElement;
// Type - Required
if (markedContentElement.Properties.TryGet(NameToken.Type, out NameToken type))
if (markedContentElement.Properties.TryGet(NameToken.Type, pdfTokenScanner, out NameToken type))
{
Type = type.Data;
}
else if (markedContentElement.Properties.TryGet(NameToken.Type, out StringToken typeStr))
else if (markedContentElement.Properties.TryGet(NameToken.Type, pdfTokenScanner, out StringToken typeStr))
{
Type = typeStr.Data;
}
@ -59,11 +60,11 @@ namespace UglyToad.PdfPig.Content
{
case "OCG": // Optional content group dictionary
// Name - Required
if (markedContentElement.Properties.TryGet(NameToken.Name, out NameToken name))
if (markedContentElement.Properties.TryGet(NameToken.Name, pdfTokenScanner, out NameToken name))
{
Name = name.Data;
}
else if (markedContentElement.Properties.TryGet(NameToken.Name, out StringToken nameStr))
else if (markedContentElement.Properties.TryGet(NameToken.Name, pdfTokenScanner, out StringToken nameStr))
{
Name = nameStr.Data;
}
@ -73,15 +74,15 @@ namespace UglyToad.PdfPig.Content
}
// Intent - Optional
if (markedContentElement.Properties.TryGet(NameToken.Intent, out NameToken intentName))
if (markedContentElement.Properties.TryGet(NameToken.Intent, pdfTokenScanner, out NameToken intentName))
{
Intent = new string[] { intentName.Data };
}
else if (markedContentElement.Properties.TryGet(NameToken.Intent, out StringToken intentStr))
else if (markedContentElement.Properties.TryGet(NameToken.Intent, pdfTokenScanner, out StringToken intentStr))
{
Intent = new string[] { intentStr.Data };
}
else if (markedContentElement.Properties.TryGet(NameToken.Intent, out ArrayToken intentArray))
else if (markedContentElement.Properties.TryGet(NameToken.Intent, pdfTokenScanner, out ArrayToken intentArray))
{
List<string> intentList = new List<string>();
foreach (var token in intentArray.Data)
@ -108,7 +109,7 @@ namespace UglyToad.PdfPig.Content
}
// Usage - Optional
if (markedContentElement.Properties.TryGet(NameToken.Usage, out DictionaryToken usage))
if (markedContentElement.Properties.TryGet(NameToken.Usage, pdfTokenScanner, out DictionaryToken usage))
{
this.Usage = usage.Data;
}
@ -116,25 +117,25 @@ namespace UglyToad.PdfPig.Content
case "OCMD":
// OCGs - Optional
if (markedContentElement.Properties.TryGet(NameToken.Ocgs, out DictionaryToken ocgsD))
if (markedContentElement.Properties.TryGet(NameToken.Ocgs, pdfTokenScanner, out DictionaryToken ocgsD))
{
// dictionary or array
throw new NotImplementedException($"{NameToken.Ocgs}");
}
else if (markedContentElement.Properties.TryGet(NameToken.Ocgs, out ArrayToken ocgsA))
else if (markedContentElement.Properties.TryGet(NameToken.Ocgs, pdfTokenScanner, out ArrayToken ocgsA))
{
// dictionary or array
throw new NotImplementedException($"{NameToken.Ocgs}");
}
// P - Optional
if (markedContentElement.Properties.TryGet(NameToken.P, out NameToken p))
if (markedContentElement.Properties.TryGet(NameToken.P, pdfTokenScanner, out NameToken p))
{
throw new NotImplementedException($"{NameToken.P}");
}
// VE - Optional
if (markedContentElement.Properties.TryGet(NameToken.VE, out ArrayToken ve))
if (markedContentElement.Properties.TryGet(NameToken.VE, pdfTokenScanner, out ArrayToken ve))
{
throw new NotImplementedException($"{NameToken.VE}");
}

16
src/UglyToad.PdfPig/Content/Page.cs
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@ -199,14 +199,13 @@
/// Gets any optional content on the page.
/// <para>Does not handle XObjects and annotations for the time being.</para>
/// </summary>
public IDictionary<string, IReadOnlyList<OptionalContentGroupElement>> GetOptionalContents()
public IReadOnlyDictionary<string, IReadOnlyList<OptionalContentGroupElement>> GetOptionalContents()
{
List<OptionalContentGroupElement> mcesOptional = new List<OptionalContentGroupElement>();
// 4.10.2
// Optional content in content stream
var mc = page.Content?.GetMarkedContents();
List<OptionalContentGroupElement> mcesOptional = new List<OptionalContentGroupElement>();
GetOptionalContentsRecursively(mc, ref mcesOptional);
GetOptionalContentsRecursively(page.Content?.GetMarkedContents(), ref mcesOptional);
// Optional content in XObjects and annotations
// TO DO
@ -217,11 +216,16 @@
private void GetOptionalContentsRecursively(IReadOnlyList<MarkedContentElement> markedContentElements, ref List<OptionalContentGroupElement> mcesOptional)
{
if (markedContentElements.Count == 0)
{
return;
}
foreach (var mce in markedContentElements)
{
if (mce.Tag == "OC")
{
mcesOptional.Add(new OptionalContentGroupElement(mce));
mcesOptional.Add(new OptionalContentGroupElement(mce, page.pdfScanner));
// we don't recurse
}
else if (mce.Children?.Count > 0)

5
src/UglyToad.PdfPig/Content/PageContent.cs
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@ -1,12 +1,11 @@
namespace UglyToad.PdfPig.Content
{
using System;
using System.Collections.Generic;
using System.Linq;
using Core;
using Filters;
using Graphics;
using Graphics.Operations;
using System;
using System.Collections.Generic;
using Tokenization.Scanner;
using XObjects;