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Merge pull request #62 from datalogics-josepha/SF47199
SF47199 - Sample update and enhancement.
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‎.github/workflows/test-net-framework-samples.yml‎

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jobs:
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test-samples:
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runs-on: windows-2019
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runs-on: windows-2022
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defaults:
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run:
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shell: bash

‎ContentModification/CreateLayer/CreateLayer.cs‎

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using Datalogics.PDFL;
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using System;
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using System.Collections.Generic;
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using System.Text;
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using Datalogics.PDFL;
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/*
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* This sample adds an Optional Content Group (a layer) to a PDF document and
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* then adds an image to that layer.
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* This sample adds Optional Content Groups (layers) to a PDF document and
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* then adds Content to those layers.
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*
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* The related ChangeLayerConfiguration program makes layers visible or invisible.
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*
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* You can toggle back and forth to make the layer (the duck image) visible or invisible
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* in the PDF file. Open the output PDF document in a PDF Viewer, click View and select
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* Show/Hide. Select Navigation Panes and Layers to display the layers in the PDF file.
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* Click on the box next to the name of the layer.
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* You can toggle back and forth to make a layer visible or invisible
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* in a PDF Viewer.
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*
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*/
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namespace CreateLayer
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Console.WriteLine("Input file: " + sInput + ", writing to " + sOutput);
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Document doc = new Document(sInput);
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Console.WriteLine("Opened a document.");
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Page pg = doc.GetPage(0);
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Image img = (pg.Content.GetElement(0) as Image);
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// Containers, Forms and Annotations can be attached to an
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// OptionalContentGroup; other content (like Image) can
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// be made optional by placing it inside a Container
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Container container = new Container();
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container.Content = new Content();
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container.Content.AddElement(img);
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using (Document doc = new Document(sInput))
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{
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Console.WriteLine("Opened a document.");
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using (Page pg = doc.GetPage(0))
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{
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Image image = (Image)pg.Content.GetElement(0);
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image.Matrix = new Matrix(image.Matrix.A * .5, 0, 0, image.Matrix.D * .5, image.Matrix.H, image.Matrix.V);
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Image image2 = new Image(Library.ResourceDirectory + "Sample_Input/Image.png");
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Text text = new Text();
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Matrix matrix = new Matrix();
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Font font = new Font("Helvetica");
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GraphicState graphicState = new GraphicState();
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TextState textState = new TextState();
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matrix.A = 42;
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matrix.D = 22;
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matrix.H = 72;
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matrix.V = 72;
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TextRun textRun = new TextRun("sample text", font, graphicState, textState, matrix);
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text.AddRun(textRun);
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Text text2 = new Text();
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matrix.A = 30;
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matrix.D = 30;
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matrix.H = 72;
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matrix.V = 288;
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TextRun textRun2 = new TextRun("Text definition provided here", font, graphicState, textState, matrix);
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text2.AddRun(textRun2);
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// Containers, Forms and Annotations can be attached to an
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// OptionalContentGroup; other content (like Image) can
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// be made optional by placing it inside a Container
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Container imageContainer = new Container();
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imageContainer.Content = new Content();
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imageContainer.Content.AddElement(image);
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Container imageContainer2 = new Container();
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imageContainer2.Content = new Content();
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imageContainer2.Content.AddElement(image2);
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Container textContainer = new Container();
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textContainer.Content = new Content();
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textContainer.Content.AddElement(text);
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Container textContainer2 = new Container();
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textContainer2.Content = new Content();
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textContainer2.Content.AddElement(text2);
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using (Document newDoc = new Document())
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{
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using (Page newPage = newDoc.CreatePage(Document.BeforeFirstPage, pg.MediaBox))
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{
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newPage.Content.AddElement(imageContainer);
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newPage.Content.AddElement(imageContainer2);
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newPage.Content.AddElement(textContainer);
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newPage.Content.AddElement(textContainer2);
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// We create new OptionalContentGroups and place them in the OptionalContentConfig.Order array
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List<OptionalContentGroup> ocgs = CreateNewOptionalContentGroups(newDoc, new List<string> { "Rubber Ducky", "PNG Logo", "Example Text", "Text Definition" });
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AssociateOCGWithContainer(newDoc, ocgs[0], imageContainer);
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AssociateOCGWithContainer(newDoc, ocgs[1], imageContainer2);
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AssociateOCGWithContainer(newDoc, ocgs[2], textContainer);
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AssociateOCGWithContainer(newDoc, ocgs[3], textContainer2);
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newPage.UpdateContent();
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newDoc.Save(SaveFlags.Full, sOutput);
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}
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}
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}
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}
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}
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}
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// We replace the Image with the Container
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// (which now holds the image)
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pg.Content.RemoveElement(0);
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pg.UpdateContent();
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public static List<OptionalContentGroup> CreateNewOptionalContentGroups(Document doc, List<string> names)
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{
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List<OptionalContentGroup> ocgs = new List<OptionalContentGroup>();
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pg.Content.AddElement(container);
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pg.UpdateContent();
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OptionalContentGroup ocg = new OptionalContentGroup(doc, names[0]);
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OptionalContentGroup ocg2 = new OptionalContentGroup(doc, names[1]);
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OptionalContentGroup ocg3 = new OptionalContentGroup(doc, names[2]);
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OptionalContentGroup ocg4 = new OptionalContentGroup(doc, names[3]);
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// We create a new OptionalContentGroup and place it in the
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// OptionalContentConfig.Order array
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OptionalContentGroup ocg = CreateNewOptionalContentGroup(doc, "Rubber Ducky");
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ocgs.Add(ocg);
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ocgs.Add(ocg2);
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ocgs.Add(ocg3);
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ocgs.Add(ocg4);
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// Now we associate the Container with the OptionalContentGroup
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// via an OptionalContentMembershipDict. Note that we MUST
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// update the Page's content afterwards.
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AssociateOCGWithContainer(doc, ocg, container);
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pg.UpdateContent();
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// Add it to the Order array -- this is required so that it will appear in the 'Layers' panel in a PDF Viewer.
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OptionalContentOrderArray order_list = doc.DefaultOptionalContentConfig.Order;
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doc.Save(SaveFlags.Full, sOutput);
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}
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}
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OptionalContentOrderArray grouping = new OptionalContentOrderArray(doc, "Image Grouping");
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grouping.Add(new OptionalContentOrderLeaf(ocg));
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grouping.Add(new OptionalContentOrderLeaf(ocg2));
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// Create an OptionalContentGroup with a given name, and add it to the
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// default OptionalContentConfig's Order array.
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public static OptionalContentGroup CreateNewOptionalContentGroup(Document doc, string name)
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{
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// Create an OptionalContentGroup
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OptionalContentGroup ocg = new OptionalContentGroup(doc, name);
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OptionalContentOrderArray grouping2 = new OptionalContentOrderArray(doc, "Text Grouping");
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grouping2.Add(new OptionalContentOrderLeaf(ocg3));
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grouping2.Add(new OptionalContentOrderLeaf(ocg4));
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// Add it to the Order array -- this is required so that the OptionalContentGroup
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// will appear in the 'Layers' control panel in a PDF Viewer. It will appear in
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// the control panel with the name given in the OptionalContentGroup constructor.
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OptionalContentOrderArray order_list = doc.DefaultOptionalContentConfig.Order;
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order_list.Insert(order_list.Length, new OptionalContentOrderLeaf(ocg));
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order_list.Insert(order_list.Length, grouping);
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order_list.Insert(order_list.Length, grouping2);
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return ocg;
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return ocgs;
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}
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// Associate a Container with an OptionalContentGroup via an OptionalContentMembershipDict.
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// This function associates a Containter with a single OptionalContentGroup and uses
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// This function associates a Container with a single OptionalContentGroup and uses
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// a VisibilityPolicy of AnyOn.
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public static void AssociateOCGWithContainer(Document doc, OptionalContentGroup ocg, Container cont)
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{
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// Create an OptionalContentMembershipDict. The options here are appropriate for a
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// 'typical' usage; other options can be used to create an 'inverting' layer
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// (i.e. 'Display this content when the layer is turned OFF'), or to make the
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// Container's visibility depend on several OptionalContentGroups
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OptionalContentMembershipDict ocmd = new OptionalContentMembershipDict(doc, new OptionalContentGroup[] {ocg}, VisibilityPolicy.AnyOn);
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OptionalContentMembershipDict ocmd = new OptionalContentMembershipDict(doc, new OptionalContentGroup[] { ocg }, VisibilityPolicy.AnyOn);
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// Associate the Container with the OptionalContentMembershipDict
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cont.OptionalContentMembershipDict = ocmd;
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}
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}

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