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.DrawingData;
import jxl.biff.drawing.EscherDisplay;
import jxl.read.biff.SheetImpl;

public class Escher {
  public Escher(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);
      for (int i = 0; i < w.getNumberOfSheets(); i++) {
        SheetImpl s = (SheetImpl)w.getSheet(i);
        bw.write(s.getName());
        bw.newLine();
        bw.newLine();
        DrawingData dd = s.getDrawingData();
        if (dd != null) {
          EscherDisplay ed = new EscherDisplay(dd, bw);
          ed.display();
        } 
        bw.newLine();
        bw.newLine();
        bw.flush();
      } 
      bw.flush();
      bw.close();
    } catch (UnsupportedEncodingException e) {
      System.err.println(e.toString());
    } 
  }
}