package com.itextpdf.highlevel.chapter02;

import com.itextpdf.io.font.constants.StandardFonts;
import com.itextpdf.kernel.font.PdfFont;
import com.itextpdf.kernel.font.PdfFontFactory;
import com.itextpdf.kernel.geom.Rectangle;
import com.itextpdf.kernel.pdf.PdfDocument;
import com.itextpdf.kernel.pdf.PdfPage;
import com.itextpdf.kernel.pdf.PdfWriter;
import com.itextpdf.kernel.pdf.canvas.PdfCanvas;
import com.itextpdf.layout.Canvas;
import com.itextpdf.layout.element.Paragraph;
import com.itextpdf.layout.element.Text;
import com.itextpdf.layout.properties.Property;
import com.itextpdf.layout.renderer.CanvasRenderer;
import com.itextpdf.layout.renderer.IRenderer;
import java.io.File;
import java.io.IOException;

public class C02E03_CanvasRepeat {

    class MyCanvasRenderer extends CanvasRenderer {

        protected boolean full = false;

        private MyCanvasRenderer(Canvas canvas) {
            super(canvas);
        }

        @Override
        public void addChild(IRenderer renderer) {
            super.addChild(renderer);
            full = Boolean.TRUE.equals(getPropertyAsBoolean(Property.FULL));
        }

        public boolean isFull() {
            return full;
        }
    }

    public static final String DEST = "results/chapter02/canvas_repeat.pdf";

    public static void main(String args[]) throws IOException {
        File file = new File(DEST);
        file.getParentFile().mkdirs();
        new C02E03_CanvasRepeat().createPdf(DEST);
    }

    public void createPdf(String dest) throws IOException {
        //Initialize PDF document
        PdfDocument pdf = new PdfDocument(new PdfWriter(dest));

        PdfPage page = pdf.addNewPage();
        PdfCanvas pdfCanvas = new PdfCanvas(page);
        Rectangle rectangle = new Rectangle(36, 500, 100, 250);
        pdfCanvas.rectangle(rectangle);
        pdfCanvas.stroke();
        Canvas canvas = new Canvas(pdfCanvas, rectangle);
        MyCanvasRenderer renderer = new MyCanvasRenderer(canvas);
        canvas.setRenderer(renderer);
        PdfFont font = PdfFontFactory.createFont(StandardFonts.TIMES_ROMAN);
        PdfFont bold = PdfFontFactory.createFont(StandardFonts.TIMES_BOLD);
        Text title = new Text("The Strange Case of Dr. Jekyll and Mr. Hyde").setFont(bold);
        Text author = new Text("Robert Louis Stevenson").setFont(font);
        Paragraph p = new Paragraph().add(title).add(" by ").add(author);
        while (!renderer.isFull())
            canvas.add(p);
        canvas.close();
        //Close document
        pdf.close();
    }

}