package org.xhtmlrenderer.simple;
import org.xhtmlrenderer.extend.TextRenderer;
import org.xhtmlrenderer.util.Uu;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.print.PageFormat;
import java.awt.print.Printable;
/**
* <p>XHTMLPrintable allows you to print XHTML content to a printer instead of
* rendering it to screen. It is an implementation of @see java.awt.print.Printable
* so you can use it any where you would use any other Printable object. The constructor
* requires an XHTMLPanel, so it's easiest to prepare an XHTMLPanel as normal, and then
* wrap a printable around it.ex:
* </p>
* <p/>
* <pre>
* import org.xhtmlrenderer.simple.*;
* import java.awt.print.*;
* // . . . .
* // xhtml_panel created earlier
* <p/>
* PrinterJob printJob = PrinterJob.getPrinterJob();
* printJob.setPrintable(new XHTMLPrintable(xhtml_panel));
* <p/>
* if(printJob.printDialog()) {
* printJob.print();
* }
* </pre>
*/
public class XHTMLPrintable implements Printable {
protected XHTMLPanel panel;
protected Graphics2DRenderer g2r = null;
/**
* Creates a new XHTMLPrintable that will print
* the current contents of the passed in XHTMLPanel.
*
* @param panel the XHTMLPanel to print
*/
public XHTMLPrintable(XHTMLPanel panel) {
this.panel = panel;
}
/**
* <p>The implementation of the <i>print</i> method
* from the @see java.awt.print.Printable interface.
*/
public int print(Graphics g, PageFormat pf, int page) {
try {
Graphics2D g2 = (Graphics2D) g;
if (g2r == null) {
g2r = new Graphics2DRenderer();
g2r.getSharedContext().setPrint(true);
g2r.getSharedContext().setInteractive(false);
g2r.getSharedContext().setDPI(72f);
g2r.getSharedContext().getTextRenderer().setSmoothingThreshold(0);
g2r.getSharedContext().getTextRenderer().setSmoothingLevel(TextRenderer.HIGH);
g2r.getSharedContext().setUserAgentCallback(panel.getSharedContext().getUserAgentCallback());
g2r.setDocument(panel.getDocument(), panel.getSharedContext().getUac().getBaseURL());
g2r.getSharedContext().setReplacedElementFactory(panel.getSharedContext().getReplacedElementFactory());
g2r.layout(g2, null);
g2r.getPanel().assignPagePrintPositions(g2);
}
if (page >= g2r.getPanel().getRootLayer().getPages().size()) {
return Printable.NO_SUCH_PAGE;
}
// render the document
g2r.getPanel().paintPage(g2, page);
return Printable.PAGE_EXISTS;
} catch (Exception ex) {
Uu.p(ex);
return Printable.NO_SUCH_PAGE;
}
}
}