package com.hz.weep;

import java.io.IOException;

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.Phrase;
import com.itextpdf.text.Rectangle;
import com.itextpdf.text.pdf.BaseFont;
import com.itextpdf.text.pdf.ColumnText;
import com.itextpdf.text.pdf.PdfPageEventHelper;
import com.itextpdf.text.pdf.PdfWriter;

public class HeaderFooter extends PdfPageEventHelper {
	@Override
	public void onEndPage(PdfWriter writer, Document document) {
		Rectangle rect = writer.getBoxSize("art");
		// 如果不设置中文处理，页眉页脚让不会被显示出来
		BaseFont bfChinese = null;
		try {
			bfChinese = BaseFont.createFont("STSong-Light", "UniGB-UCS2-H", BaseFont.NOT_EMBEDDED);
		} catch (DocumentException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		Font fontChinese = new Font(bfChinese, 12, Font.NORMAL);
		// 设置字体颜色
		fontChinese.setColor(BaseColor.GRAY);
		// 页眉
		ColumnText.showTextAligned(writer.getDirectContent(), Element.ALIGN_CENTER, new Phrase("我是页眉", fontChinese),
				rect.getLeft(), rect.getTop() + 35, 0);
		// 页脚
		ColumnText.showTextAligned(writer.getDirectContent(), Element.ALIGN_CENTER,
				new Phrase(String.format("第 %d 页", writer.getPageNumber()), fontChinese),
				(rect.getLeft() + rect.getRight()) / 2 + 120, rect.getBottom() - 40, 0);
	}
}