/*
* Copyright 2001 Sun Microsystems, Inc. All Rights Reserved.
*
* This software is the proprietary information of Sun Microsystems, Inc.
* Use is subject to license terms.
*
*/
import java.io.*;
import javax.print.*;
import javax.print.attribute.*;
import javax.print.attribute.standard.*;
/*
* Use the Java(TM) Print Service API to locate a print service which
* can print a GIF-encoded image. A GIF image is printed according to
* a job template specified as a set of printing attributes.
*/
public class PrintGIF {
public static void main(String args[]) {
/* Use the pre-defined flavor for a GIF from an InputStream */
DocFlavor flavor = DocFlavor.INPUT_STREAM.GIF;
/* Create a set which specifies how the job is to be printed */
PrintRequestAttributeSet aset = new HashPrintRequestAttributeSet();
aset.add(MediaSizeName.NA_LETTER);
aset.add(new Copies(1));
/* Locate print services which can print a GIF in the manner specified */
PrintService[] pservices =
PrintServiceLookup.lookupPrintServices(flavor, aset);
if (pservices.length > 0) {
/* Create a Print Job */
DocPrintJob printJob = pservices[0].createPrintJob();
/* Create a Doc implementation to pass the print data */
Doc doc = new InputStreamDoc("java2dlogo.gif", flavor);
/* Print the doc as specified */
try {
printJob.print(doc, aset);
} catch (PrintException e) {
System.err.println(e);
}
} else {
System.err.println("No suitable printers");
}
}
}
class InputStreamDoc implements Doc {
private String filename;
private DocFlavor docFlavor;
private InputStream stream;
public InputStreamDoc(String name, DocFlavor flavor) {
filename = name;
docFlavor = flavor;
}
public DocFlavor getDocFlavor() {
return docFlavor;
}
/* No attributes attached to this Doc - mainly useful for MultiDoc */
public DocAttributeSet getAttributes() {
return null;
}
/* Since the data is to be supplied as an InputStream delegate to
* getStreamForBytes().
*/
public Object getPrintData() throws IOException {
return getStreamForBytes();
}
/* Not possible to return a GIF as text */
public Reader getReaderForText()
throws UnsupportedEncodingException, IOException {
return null;
}
/* Return the print data as an InputStream.
* Always return the same instance.
*/
public InputStream getStreamForBytes() throws IOException {
synchronized(this) {
if (stream == null) {
stream = new FileInputStream(filename);
}
return stream;
}
}
}
