Print JPEG Java

print.java

package com.halo.struts.action;

import java.io.FileInputStream;  
import java.io.IOException;  
   
import javax.print.Doc;  
import javax.print.DocFlavor;  
import javax.print.DocPrintJob;  
import javax.print.PrintException;  
import javax.print.PrintService;  
import javax.print.PrintServiceLookup;  
import javax.print.SimpleDoc;  
import javax.print.attribute.DocAttributeSet;  
import javax.print.attribute.HashDocAttributeSet;  
import javax.print.attribute.HashPrintRequestAttributeSet;  
import javax.print.attribute.PrintRequestAttributeSet;  
import javax.print.attribute.standard.Copies;  
import javax.print.attribute.standard.PrintQuality;  
import javax.print.attribute.standard.PrinterResolution;  

import com.halo.hibernate.pojo.Asset;
import com.halo.hibernate.pojo.BarcodeDetails;
import com.halo.hibernate.resources.HaloMaster;
import com.halo.resources.Resources;
public class PrintImage {  
    static public void main(String args[]) throws Exception {  
        try {  
          PrintRequestAttributeSet pras = new HashPrintRequestAttributeSet();  
          pras.add(new Copies(1));  
          pras.add(new PrinterResolution(203,203,PrinterResolution.DPI));  
   
          PrintService pss[] = PrintServiceLookup.lookupPrintServices(DocFlavor.INPUT_STREAM.JPEG, pras);  
   
          if (pss.length == 0)  
            throw new RuntimeException("No printer services available.");  
   
          for(int i=0;i<pss.length;i++)
          {
        	  Resources.println("pss ["+i+"] = "+pss.toString());
          }
          PrintService ps = pss[0];  
            
          System.out.println("Printing to " + ps);  
   
          DocPrintJob job = ps.createPrintJob();  
          HaloMaster haloMaster = new HaloMaster();
          Asset asset = haloMaster.getAsset(24);
          BarcodeDetails barcodeDetails = asset.getBarcodeDetails();
          String imageSource = "";
          if(barcodeDetails != null)
           imageSource = Resources.getFolderResource("barcodePath")+barcodeDetails.getFileName();
   
          FileInputStream fin = new FileInputStream(imageSource);  
          DocAttributeSet das = new HashDocAttributeSet();  
          das.add(new PrinterResolution(203,203,PrinterResolution.DPI));  
          //das.add(new PrintQuality(3));  
          Doc doc = new SimpleDoc(fin, DocFlavor.INPUT_STREAM.JPEG, das);  
            
          job.print(doc, pras);  
   
          fin.close();  
        } catch (IOException ie) {  
          ie.printStackTrace();  
        } catch (PrintException pe) {  
          pe.printStackTrace();  
        }  
      }  
}

http://download.oracle.com/javase/1.4.2/docs/api/javax/print/attribute/standard/PrintQuality.html

You can use either of the following to improve the quality of the scaling. I believe BiCubic gives better results but is slower than BILINEAR.

g2d.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BICUBIC);
g2d.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR);

I would also not use Image.getScaledInstance() as it is very slow. I'm not sure about the printing as I'm struggling with similar issues.

HI! Can you tell me where I can find maven code for HaloMaster, Asset and BarcodeDetails? Thanks!

I have the same issue as @SalvatoreCatania.