Radio Group : Layer « PDF « Java Tutorial

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Java Tutorial » PDF » Layer 
29.70.7.Radio GroupPrevious/Next
import java.io.FileOutputStream;
import java.util.ArrayList;

import com.lowagie.text.Document;
import com.lowagie.text.Element;
import com.lowagie.text.Phrase;
import com.lowagie.text.pdf.ColumnText;
import com.lowagie.text.pdf.PdfContentByte;
import com.lowagie.text.pdf.PdfLayer;
import com.lowagie.text.pdf.PdfWriter;

public class MainClass {
  public static void main(String[] argsthrows Exception {
    Document document = new Document();
    PdfWriter writer = PdfWriter
        .getInstance(document, new FileOutputStream("2.pdf"));
    writer.setPdfVersion(PdfWriter.VERSION_1_5);

    document.open();

    PdfContentByte cb = writer.getDirectContent();

    PdfLayer radiogroup = PdfLayer.createTitle("Radio Group", writer);
    PdfLayer radio1 = new PdfLayer("Radiogroup: layer 1", writer);
    radio1.setOn(true);
    PdfLayer radio2 = new PdfLayer("Radiogroup: layer 2", writer);
    radio2.setOn(false);
    PdfLayer radio3 = new PdfLayer("Radiogroup: layer 3", writer);
    radio3.setOn(false);
    radiogroup.addChild(radio1);
    radiogroup.addChild(radio2);
    radiogroup.addChild(radio3);
    ArrayList options = new ArrayList();
    options.add(radio1);
    options.add(radio2);
    options.add(radio3);
    writer.addOCGRadioGroup(options);
    cb.beginLayer(radio1);
    ColumnText.showTextAligned(cb, Element.ALIGN_LEFT, new Phrase("option 1")506000);
    cb.endLayer();
    cb.beginLayer(radio2);
    ColumnText.showTextAligned(cb, Element.ALIGN_LEFT, new Phrase("option 2")505750);
    cb.endLayer();
    cb.beginLayer(radio3);
    ColumnText.showTextAligned(cb, Element.ALIGN_LEFT, new Phrase("option 3")505500);
    cb.endLayer();
    
    document.close();
  }
}
29.70.Layer
29.70.1.Using Layer
29.70.2.Text on layer
29.70.3.Create PdfLayer
29.70.4.Show hide text with layer
29.70.5.Nested Layers
29.70.6.Grouped layers
29.70.7.Radio Group
29.70.8.not printed layer
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