package jxl.demo;

import java.io.BufferedWriter;
import java.io.IOException;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.UnsupportedEncodingException;
import jxl.Workbook;
import jxl.biff.drawing.DrawingGroup;
import jxl.biff.drawing.EscherDisplay;
import jxl.read.biff.WorkbookParser;

public class EscherDrawingGroup {
  public EscherDrawingGroup(Workbook w, OutputStream out, String encoding) throws IOException {
    if (encoding == null || !encoding.equals("UnicodeBig"))
      encoding = "UTF8"; 
    try {
      OutputStreamWriter osw = new OutputStreamWriter(out, encoding);
      BufferedWriter bw = new BufferedWriter(osw);
      WorkbookParser wp = (WorkbookParser)w;
      DrawingGroup dg = wp.getDrawingGroup();
      if (dg != null) {
        EscherDisplay ed = new EscherDisplay(dg, bw);
        ed.display();
      } 
      bw.newLine();
      bw.newLine();
      bw.flush();
      bw.close();
    } catch (UnsupportedEncodingException e) {
      System.err.println(e.toString());
    } 
  }
}