Java Tutorial/2D Graphics/Print Service — различия между версиями

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Текущая версия на 15:24, 31 мая 2010

Determining Print Job Capabilities Supported by a Print Service

import java.io.BufferedOutputStream;
import java.io.FileOutputStream;
import java.io.OutputStream;
import java.lang.reflect.Array;
import javax.print.DocFlavor;
import javax.print.StreamPrintService;
import javax.print.StreamPrintServiceFactory;
import javax.print.attribute.Attribute;
public class Main {
  public static void main(String[] argv) throws Exception {
    OutputStream fos = new BufferedOutputStream(new FileOutputStream("filename.ps"));
    DocFlavor flavor = DocFlavor.INPUT_STREAM.GIF;
    StreamPrintServiceFactory[] factories = StreamPrintServiceFactory
        .lookupStreamPrintServiceFactories(flavor, DocFlavor.BYTE_ARRAY.POSTSCRIPT.getMimeType());
    StreamPrintService service = factories[0].getPrintService(fos);
    Class[] cats = service.getSupportedAttributeCategories();
    for (int j = 0; j < cats.length; j++) {
      Attribute attr = (Attribute) service.getDefaultAttributeValue(cats[j]);
      if (attr != null) {
        String attrName = attr.getName();
        String attrValue = attr.toString();
        Object o = service.getSupportedAttributeValues(attr.getCategory(), null, null);
        if (o.getClass().isArray()) {
          for (int k = 0; k < Array.getLength(o); k++) {
            Object o2 = Array.get(o, k);
            System.out.println(o2);
          }
        }
      }
    }
  }
}





Determining the Capabilities of a Print Service

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import javax.print.DocFlavor;
import javax.print.StreamPrintService;
import javax.print.StreamPrintServiceFactory;
import javax.print.attribute.Attribute;
public class Main {
  public static void main(String[] argv) throws Exception {
    OutputStream fos = new BufferedOutputStream(new FileOutputStream("filename.ps"));
    DocFlavor flavor = DocFlavor.INPUT_STREAM.GIF;
    StreamPrintServiceFactory[] factories = StreamPrintServiceFactory
        .lookupStreamPrintServiceFactories(flavor, DocFlavor.BYTE_ARRAY.POSTSCRIPT.getMimeType());
    StreamPrintService service = factories[0].getPrintService(fos);
    Attribute[] attrs = service.getAttributes().toArray();
    for (int j = 0; j < attrs.length; j++) {
      String attrName = attrs[j].getName();
      String attrValue = attrs[j].toString();
      System.out.println(attrName);
      System.out.println(attrValue);
    }
  }
}





Discovering Available Print Services

import javax.print.DocFlavor;
import javax.print.PrintService;
import javax.print.PrintServiceLookup;
import javax.print.attribute.AttributeSet;
import javax.print.attribute.HashAttributeSet;
import javax.print.attribute.standard.ColorSupported;
import javax.print.attribute.standard.PrinterName;
public class Main {
  public static void main(String[] argv) throws Exception {
    PrintService[] services = PrintServiceLookup.lookupPrintServices(null, null);
    PrintService service = PrintServiceLookup.lookupDefaultPrintService();
    services = PrintServiceLookup.lookupPrintServices(DocFlavor.INPUT_STREAM.GIF, null);
    AttributeSet aset = new HashAttributeSet();
    aset.add(new PrinterName("HP LaserJet", null));
    services = PrintServiceLookup.lookupPrintServices(null, aset);
    aset = new HashAttributeSet();
    aset.add(ColorSupported.SUPPORTED);
    services = PrintServiceLookup.lookupPrintServices(null, aset);
  }
}





Discovering Available Streaming Print Services

import java.io.BufferedOutputStream;
import java.io.FileOutputStream;
import java.io.OutputStream;
import javax.print.DocFlavor;
import javax.print.StreamPrintService;
import javax.print.StreamPrintServiceFactory;
public class Main {
  public static void main(String[] argv) throws Exception {
    StreamPrintServiceFactory[] factories = StreamPrintServiceFactory
        .lookupStreamPrintServiceFactories(null, null);
    factories = StreamPrintServiceFactory.lookupStreamPrintServiceFactories(
        DocFlavor.INPUT_STREAM.GIF, DocFlavor.BYTE_ARRAY.POSTSCRIPT.getMimeType());
  }
}





Listening for Print Job Status Changes

import java.io.BufferedOutputStream;
import java.io.FileOutputStream;
import java.io.OutputStream;
import javax.print.DocFlavor;
import javax.print.DocPrintJob;
import javax.print.StreamPrintService;
import javax.print.StreamPrintServiceFactory;
import javax.print.event.PrintJobEvent;
import javax.print.event.PrintJobListener;
public class Main {
  public static void main(String[] argv) throws Exception {
    OutputStream fos = new BufferedOutputStream(new FileOutputStream("filename.ps"));
    DocFlavor flavor = DocFlavor.INPUT_STREAM.GIF;
    StreamPrintServiceFactory[] factories = StreamPrintServiceFactory
        .lookupStreamPrintServiceFactories(flavor, DocFlavor.BYTE_ARRAY.POSTSCRIPT.getMimeType());
    StreamPrintService service = factories[0].getPrintService(fos);
    DocPrintJob job = service.createPrintJob();
    job.addPrintJobListener(new MyPrintJobListener());
  }
}
class MyPrintJobListener implements PrintJobListener {
  public void printDataTransferCompleted(PrintJobEvent pje) {
    System.out.println("printDataTransferCompleted");
  }
  public void printJobCanceled(PrintJobEvent pje) {
    System.out.println("The print job was cancelled"); 
  }
  public void printJobCompleted(PrintJobEvent pje) {
    System.out.println("The print job was completed"); 
  }
  public void printJobFailed(PrintJobEvent pje) {
    System.out.println("The print job has failed");
  }
  public void printJobNoMoreEvents(PrintJobEvent pje) {
  }
  public void printJobRequiresAttention(PrintJobEvent pje) {
  }
}





Listening for Print Service Status Changes

import javax.print.PrintService;
import javax.print.PrintServiceLookup;
import javax.print.attribute.Attribute;
import javax.print.event.PrintServiceAttributeEvent;
import javax.print.event.PrintServiceAttributeListener;
public class Main {
  public static void main(String[] argv) throws Exception {
    PrintService[] services = PrintServiceLookup.lookupPrintServices(null, null);
    for (int i = 0; i < services.length; i++) {
      services[i].addPrintServiceAttributeListener(new MyPrintServiceAttributeListener());
    }
  }
}
class MyPrintServiceAttributeListener implements PrintServiceAttributeListener {
  public void attributeUpdate(PrintServiceAttributeEvent psae) {
    PrintService service = psae.getPrintService();
    Attribute[] attrs = psae.getAttributes().toArray();
    for (int i = 0; i < attrs.length; i++) {
      String attrName = attrs[i].getName();
      String attrValue = attrs[i].toString();
    }
  }
}





List Print Services

import javax.print.DocFlavor;
import javax.print.PrintService;
import javax.print.PrintServiceLookup;
import javax.print.attribute.Attribute;
import javax.print.attribute.PrintServiceAttributeSet;
import javax.print.attribute.standard.PrinterName;
public class Main {
  static public void main(String args[]) throws Exception {
    PrintService pss[] = PrintServiceLookup.lookupPrintServices(null, null);
    for (int i = 0; i < pss.length; ++i) {
      System.out.println(pss[i]);
      PrintService ps = pss[i];
      PrintServiceAttributeSet psas = ps.getAttributes();
      Attribute attributes[] = psas.toArray();
      for (int j = 0; j < attributes.length; ++j) {
        Attribute attribute = attributes[j];
        System.out.println("  attribute: " + attribute.getName());
        if (attribute instanceof PrinterName) {
          System.out.println("    printer name: " + ((PrinterName) attribute).getValue());
        }
      }
      DocFlavor supportedFlavors[] = ps.getSupportedDocFlavors();
      for (int j = 0; j < supportedFlavors.length; ++j) {
        System.out.println("  flavor: " + supportedFlavors[j]);
      }
    }
  }
}





Use a factory to create a print service

import java.io.BufferedOutputStream;
import java.io.FileOutputStream;
import java.io.OutputStream;
import javax.print.DocFlavor;
import javax.print.StreamPrintService;
import javax.print.StreamPrintServiceFactory;
public class Main {
  public static void main(String[] argv) throws Exception {
    StreamPrintServiceFactory[] factories = StreamPrintServiceFactory
        .lookupStreamPrintServiceFactories(null, null);
    OutputStream fos = new BufferedOutputStream(new FileOutputStream("outfile.ps"));
    StreamPrintService service = factories[0].getPrintService(fos);
  }
}





Using a Printing Service

import java.io.BufferedInputStream;
import java.io.FileInputStream;
import java.io.InputStream;
import javax.print.Doc;
import javax.print.DocFlavor;
import javax.print.DocPrintJob;
import javax.print.PrintService;
import javax.print.PrintServiceLookup;
import javax.print.SimpleDoc;
import javax.print.event.PrintJobAdapter;
import javax.print.event.PrintJobEvent;
public class Main {
  public static void main(String[] args) throws Exception {
    InputStream is = new BufferedInputStream(new FileInputStream("filename.gif"));
    DocFlavor flavor = DocFlavor.INPUT_STREAM.GIF;
    PrintService service = PrintServiceLookup.lookupDefaultPrintService();
    DocPrintJob job = service.createPrintJob();
    Doc doc = new SimpleDoc(is, flavor, null);
    PrintJobWatcher pjDone = new PrintJobWatcher(job);
    job.print(doc, null);
    pjDone.waitForDone();
    is.close();
  }
}
class PrintJobWatcher {
  boolean done = false;
  PrintJobWatcher(DocPrintJob job) {
    job.addPrintJobListener(new PrintJobAdapter() {
      public void printJobCanceled(PrintJobEvent pje) {
        synchronized (PrintJobWatcher.this) {
          done = true;
          PrintJobWatcher.this.notify();
        }
      }
      public void printJobCompleted(PrintJobEvent pje) {
        synchronized (PrintJobWatcher.this) {
          done = true;
          PrintJobWatcher.this.notify();
        }
      }
      public void printJobFailed(PrintJobEvent pje) {
        synchronized (PrintJobWatcher.this) {
          done = true;
          PrintJobWatcher.this.notify();
        }
      }
      public void printJobNoMoreEvents(PrintJobEvent pje) {
        synchronized (PrintJobWatcher.this) {
          done = true;
          PrintJobWatcher.this.notify();
        }
      }
    });
  }
  public synchronized void waitForDone() {
    try {
      while (!done) {
        wait();
      }
    } catch (InterruptedException e) {
    }
  }
}





Using a Streaming Printing Service

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStream;
import javax.print.Doc;
import javax.print.DocFlavor;
import javax.print.DocPrintJob;
import javax.print.SimpleDoc;
import javax.print.StreamPrintService;
import javax.print.StreamPrintServiceFactory;
import javax.print.event.PrintJobAdapter;
import javax.print.event.PrintJobEvent;
public class Main {
  public static void main(String[] args) throws Exception{
    InputStream is = new BufferedInputStream(new FileInputStream("filename.gif"));
    OutputStream fos = new BufferedOutputStream(new FileOutputStream("filename.ps"));
    DocFlavor flavor = DocFlavor.INPUT_STREAM.GIF;
    StreamPrintServiceFactory[] factories = StreamPrintServiceFactory
        .lookupStreamPrintServiceFactories(flavor, DocFlavor.BYTE_ARRAY.POSTSCRIPT.getMimeType());
    if (factories.length > 0) {
      StreamPrintService service = factories[0].getPrintService(fos);
      DocPrintJob job = service.createPrintJob();
      Doc doc = new SimpleDoc(is, flavor, null);
      PrintJobWatcher pjDone = new PrintJobWatcher(job);
      job.print(doc, null);
      pjDone.waitForDone();
    }
    is.close();
    fos.close();
  }
}
class PrintJobWatcher {
  boolean done = false;
  PrintJobWatcher(DocPrintJob job) {
    job.addPrintJobListener(new PrintJobAdapter() {
      public void printJobCanceled(PrintJobEvent pje) {
        synchronized (PrintJobWatcher.this) {
          done = true;
          PrintJobWatcher.this.notify();
        }
      }
      public void printJobCompleted(PrintJobEvent pje) {
        synchronized (PrintJobWatcher.this) {
          done = true;
          PrintJobWatcher.this.notify();
        }
      }
      public void printJobFailed(PrintJobEvent pje) {
        synchronized (PrintJobWatcher.this) {
          done = true;
          PrintJobWatcher.this.notify();
        }
      }
      public void printJobNoMoreEvents(PrintJobEvent pje) {
        synchronized (PrintJobWatcher.this) {
          done = true;
          PrintJobWatcher.this.notify();
        }
      }
    });
  }
  public synchronized void waitForDone() {
    try {
      while (!done) {
        wait();
      }
    } catch (InterruptedException e) {
    }
  }
}