org.zafritech.zidingorms.io.pdf.PageXofY.java Source code

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Here is the source code for org.zafritech.zidingorms.io.pdf.PageXofY.java

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/*
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package org.zafritech.zidingorms.io.pdf;

import com.itextpdf.kernel.events.Event;
import com.itextpdf.kernel.events.IEventHandler;
import com.itextpdf.kernel.events.PdfDocumentEvent;
import com.itextpdf.kernel.geom.Rectangle;
import com.itextpdf.kernel.pdf.PdfDocument;
import com.itextpdf.kernel.pdf.PdfPage;
import com.itextpdf.kernel.pdf.canvas.PdfCanvas;
import com.itextpdf.kernel.pdf.xobject.PdfFormXObject;
import com.itextpdf.layout.Canvas;
import com.itextpdf.layout.element.Paragraph;
import com.itextpdf.layout.property.TextAlignment;

/**
 *
 * @author LukeS
 */
public class PageXofY implements IEventHandler {

    protected PdfFormXObject placeholder;
    protected float side = 20;
    protected float x = 300;
    protected float y = 25;
    protected float space = 4.5f;
    protected float descent = 3;

    public PageXofY(PdfDocument pdf) {

        placeholder = new PdfFormXObject(new Rectangle(0, 0, side, side));
    }

    @Override
    public void handleEvent(Event event) {

        PdfDocumentEvent docEvent = (PdfDocumentEvent) event;
        PdfDocument pdf = docEvent.getDocument();
        PdfPage page = docEvent.getPage();

        int pageNumber = pdf.getPageNumber(page);
        Rectangle pageSize = page.getPageSize();

        PdfCanvas pdfCanvas = new PdfCanvas(page.getLastContentStream(), page.getResources(), pdf);
        Canvas canvas = new Canvas(pdfCanvas, pdf, pageSize);
        Paragraph p = new Paragraph().add("Page ").add(String.valueOf(pageNumber)).add(" of");

        canvas.showTextAligned(p, x, y, TextAlignment.RIGHT);
        pdfCanvas.addXObject(placeholder, x + space, y - descent);

        pdfCanvas.release();
    }

    public void writeTotal(PdfDocument pdf) {

        Canvas canvas = new Canvas(placeholder, pdf);

        canvas.showTextAligned(String.valueOf(pdf.getNumberOfPages()), 0, descent, TextAlignment.LEFT);
    }
}