Bug 204235 Background image can not be shown when preview as PPT [1205]
engine/org.eclipse.birt.report.engine.emitter.ppt/src/org/eclipse/birt/report/engine/emitter/ppt/PPTWriter.java
*  Actuate Corporation  - initial API and implementation
 *******************************************************************************/
package org.eclipse.birt.report.engine.emitter.ppt;
import java.awt.Color;
import java.awt.Image;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.io.UnsupportedEncodingException;
import java.net.URL;
import java.util.ArrayList;
import java.util.Collection;
import java.util.HashMap;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
import java.util.TreeMap;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.imageio.ImageIO;
import javax.swing.ImageIcon;
import org.apache.commons.codec.binary.Base64;
import org.eclipse.birt.report.engine.layout.emitter.util.BackgroundImageLayout;
import org.eclipse.birt.report.engine.layout.emitter.util.Position;
import org.eclipse.birt.report.engine.layout.pdf.font.FontInfo;
import com.lowagie.text.Font;
import com.lowagie.text.pdf.BaseFont;
public class PPTWriter