org.zkoss.poi.xslf.usermodel

Class XSLFImageRenderer

java.lang.Object

org.zkoss.poi.xslf.usermodel.XSLFImageRenderer

@Beta
public class XSLFImageRenderer
extends java.lang.Object

For now this class renders only images supported by the javax.imageio.ImageIO framework. Subclasses can override this class to support other formats, for example, Use Apache batik to render WMF:

 
 public class MyImageRendener extends XSLFImageRendener{
 public boolean drawImage(Graphics2D graphics, XSLFPictureData data, Rectangle2D anchor){
        boolean ok = super.drawImage(graphics, data, anchor);
        if(!ok){
                // see what type of image we are
                String contentType = data.getPackagePart().getContentType();
                if(contentType.equals("image/wmf")){
                        // use Apache Batik to handle WMF
                        // see http://xmlgraphics.apache.org/batik/
                }
                
        }
        return ok;
 }
 }
 
 

and then pass this class to your instance of java.awt.Graphics2D:

 
 graphics.setRenderingHint(XSLFRenderingHint.IMAGE_RENDERER, new MyImageRendener());
 
 

Author:

Yegor Kozlov

Constructor Summary

Constructors

Constructor and Description
XSLFImageRenderer()

Method Summary

Modifier and Type	Method and Description
boolean	drawImage(java.awt.Graphics2D graphics, XSLFPictureData data, java.awt.geom.Rectangle2D anchor) Render picture data into the supplied graphics
java.awt.image.BufferedImage	readImage(PackagePart packagePart) Create a buffered image from the supplied package part.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

XSLFImageRenderer

public XSLFImageRenderer()

Method Detail

drawImage

public boolean drawImage(java.awt.Graphics2D graphics,
                         XSLFPictureData data,
                         java.awt.geom.Rectangle2D anchor)

Render picture data into the supplied graphics

Returns:

true if the picture data was successfully rendered

readImage

public java.awt.image.BufferedImage readImage(PackagePart packagePart)
                                       throws java.io.IOException

Create a buffered image from the supplied package part. This method is called to create texture paints.

Returns:

a BufferedImage containing the decoded contents of the input, or null.

Throws:

java.io.IOException