Example usage for com.lowagie.text.pdf PdfWriter lockLayer

Introduction

In this page you can find the example usage for com.lowagie.text.pdf PdfWriter lockLayer.

Prototype

public void lockLayer(PdfLayer layer) 

Source Link

Document

Use this method to lock an optional content group.

Usage

From source file:questions.ocg.LockedLayers.java

public static void main(String[] args) {
    Document document = new Document();
    try {/*from  w w  w.j a  v a 2s.  co  m*/
        PdfWriter writer = PdfWriter.getInstance(document, new FileOutputStream(RESULT));
        writer.setPdfVersion(PdfWriter.VERSION_1_5);
        writer.setViewerPreferences(PdfWriter.PageModeUseOC);
        document.open();
        PdfContentByte cb = writer.getDirectContent();

        PdfLayer nested = new PdfLayer("Nested Layers", writer);
        PdfLayer nested_1 = new PdfLayer("Nested Layer 1", writer);
        PdfLayer nested_2 = new PdfLayer("Nested Layer 2", writer);
        nested.addChild(nested_1);
        nested.addChild(nested_2);
        cb.beginLayer(nested);
        ColumnText.showTextAligned(cb, Element.ALIGN_LEFT, new Phrase("nested layers"), 50, 775, 0);
        cb.endLayer();
        cb.beginLayer(nested_1);
        ColumnText.showTextAligned(cb, Element.ALIGN_LEFT, new Phrase("nested layer 1"), 100, 800, 0);
        cb.endLayer();
        cb.beginLayer(nested_2);
        ColumnText.showTextAligned(cb, Element.ALIGN_LEFT, new Phrase("nested layer 2"), 100, 750, 0);
        cb.endLayer();

        PdfLayer group = PdfLayer.createTitle("Grouped layers", writer);
        PdfLayer layer1 = new PdfLayer("Group: layer 1", writer);
        PdfLayer layer2 = new PdfLayer("Group: layer 2", writer);
        group.addChild(layer1);
        group.addChild(layer2);
        cb.beginLayer(layer1);
        ColumnText.showTextAligned(cb, Element.ALIGN_LEFT, new Phrase("layer 1 in the group"), 50, 700, 0);
        cb.endLayer();
        cb.beginLayer(layer2);
        ColumnText.showTextAligned(cb, Element.ALIGN_LEFT, new Phrase("layer 2 in the group"), 50, 675, 0);
        cb.endLayer();

        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<PdfLayer> options = new ArrayList<PdfLayer>();
        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"), 50, 600, 0);
        cb.endLayer();
        cb.beginLayer(radio2);
        ColumnText.showTextAligned(cb, Element.ALIGN_LEFT, new Phrase("option 2"), 50, 575, 0);
        cb.endLayer();
        cb.beginLayer(radio3);
        ColumnText.showTextAligned(cb, Element.ALIGN_LEFT, new Phrase("option 3"), 50, 550, 0);
        cb.endLayer();

        PdfLayer not_printed = new PdfLayer("not printed", writer);
        not_printed.setOnPanel(false);
        not_printed.setPrint("Print", false);
        cb.beginLayer(not_printed);
        ColumnText.showTextAligned(cb, Element.ALIGN_CENTER, new Phrase("PRINT THIS PAGE"), 300, 700, 90);
        cb.endLayer();

        PdfLayer zoom = new PdfLayer("Zoom 0.75-1.25", writer);
        zoom.setOnPanel(false);
        zoom.setZoom(0.75f, 1.25f);
        cb.beginLayer(zoom);
        ColumnText.showTextAligned(cb, Element.ALIGN_LEFT,
                new Phrase("Only visible if the zoomfactor is between 75 and 125%"), 30, 530, 90);
        cb.endLayer();

        writer.lockLayer(nested_1);
        writer.lockLayer(layer2);
    } catch (DocumentException de) {
        System.err.println(de.getMessage());
    } catch (IOException ioe) {
        System.err.println(ioe.getMessage());
    }

    document.close();
}

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