package model;

import com.itextpdf.text.BaseColor;
import com.itextpdf.text.Document;
import com.itextpdf.text.DocumentException;
import com.itextpdf.text.Element;
import com.itextpdf.text.Font;
import com.itextpdf.text.Font.FontFamily;
import com.itextpdf.text.Phrase;
import com.itextpdf.text.pdf.BaseFont;
import com.itextpdf.text.pdf.ColumnText;
import com.itextpdf.text.pdf.PdfContentByte;
import com.itextpdf.text.pdf.PdfPageEventHelper;
import com.itextpdf.text.pdf.PdfWriter;
import java.io.IOException;


public class Watermark extends PdfPageEventHelper {
        Font font = null;
        Phrase watermark = null;
        public Watermark() {
            font = new Font(createBaseFont(), 70, Font.NORMAL, BaseColor.LIGHT_GRAY);
            watermark = new Phrase("VÍZJEL ÁRVÍZTŰRŐ", font);
        }
        
        private BaseFont createBaseFont() {
            BaseFont baseFont = null;
            try {
                baseFont =  tryCreateBaseFont();
            }catch(DocumentException ex) {
                System.err.println("Hiba a dokumentum készítése közben!");
            }catch(IOException ex) {
                System.err.println("Hiba a dokuementum kiírása közben!");
            }
            return baseFont;
        }
        private BaseFont tryCreateBaseFont() throws DocumentException,
                IOException {
            BaseFont baseFont = BaseFont.createFont(BaseFont.HELVETICA,
                BaseFont.CP1250, BaseFont.EMBEDDED);
            return baseFont;
        }
        
        @Override
        public void onEndPage(PdfWriter writer, Document document) {
            PdfContentByte canvas = writer.getDirectContentUnder();
            ColumnText.showTextAligned(canvas, Element.ALIGN_CENTER, watermark, 280, 420, 45);
        }    
    
}