Recent changes to Developers:Java_Printing_Notes

Developers:Java_Printing_Notes modified by Federico Alcantara

Federico Alcantara — Tue, 24 Nov 2015 17:46:59 -0000

--- v22
+++ v23
@@ -36,7 +36,7 @@
     throw new RuntimeException("Oops!, you don´t have any printer");
     }
     // It is a good practice to check if the selected PrintService can handle the document.
-    if (!printService.isDocFlavorSupported(DocFlavor.INPUT_STREAM.PNG) {
+    if (!printService.isDocFlavorSupported(DocFlavor.INPUT_STREAM.PNG)) {

     throw new RuntimeException("Printer can't handle png´s");
     }
@@ -66,14 +66,14 @@
     // Open the PDF document
     InputStream pdfDoc = new FileInputStream("My_Document.pdf");
     // Wubiq can convert PDF to Pageable. This document must be closed after printing.
-    Pageable pageable = PdfUtils.pdfToPageable(pdfDoc);
+    Pageable pageable = PdfUtils.INSTANCE.pdfToPageable(pdfDoc);
     try {

     printerJob.setPageable(pageable);
     printerJob.print(requestAttributes);
     } finally {

-    PdfUtils.closePageable(pageable);
+    PdfUtils.INSTANCE.closePageable(pageable);
     }

 #### _**Pageable / Printable behavior**_

Developers:Java_Printing_Notes modified by Federico Alcantara

Federico Alcantara — Thu, 26 Jun 2014 21:07:05 -0000

--- v21
+++ v22
@@ -81,3 +81,7 @@
 As you can see Pageable and Printable interface are treated as DocFlavor.SERVICE_FORMATTED, and this means that the service formats or interprets the document sent to it. So you will see that the same document might look different when printed from different operating system platform or printers (PrintService).

 When printing try to use a PDF renderer if your printer supports PDF documents. Converting PDF to images does not produce good quality output. Converting PDF to Pageable produces the most accepted output, but each implementation of the print service handle it differently thus producing different visible output from the same report and data. 
+
+#### _**Dot Matrix / ESCP/2 Printers**_
+
+Most dot matrix printers can receive print command with Epson ESCP/2 compatible commands. Non-windows drivers outputs the document with acceptable resolution. However is never closed to direct printing as Windows driver does. So if your network includes printing to Dot Matrix connected to non-windows computers, you might want to take a look at wubiq's API to print using TextPageable, which enables clearer and better quality printing.

Developers:Java_Printing_Notes modified by Federico Alcantara

Federico Alcantara — Thu, 26 Jun 2014 21:07:04 -0000

--- v20
+++ v21
@@ -78,6 +78,6 @@

 #### _**Pageable / Printable behavior**_

-As you can see Pageable and Printable interface are treated as DocFlavor.SERVICE_FORMATTED, and this means that the service formats or interprets the document sent to it. So you will see that the same document might look different when printer from different operating system platform or printers (PrintService). 
+As you can see Pageable and Printable interface are treated as DocFlavor.SERVICE_FORMATTED, and this means that the service formats or interprets the document sent to it. So you will see that the same document might look different when printed from different operating system platform or printers (PrintService). 

-When printing try to use a PDF renderer if your printer supports PDF documents. Converting PDF to images does not produce good quality output. 
+When printing try to use a PDF renderer if your printer supports PDF documents. Converting PDF to images does not produce good quality output. Converting PDF to Pageable produces the most accepted output, but each implementation of the print service handle it differently thus producing different visible output from the same report and data.

Developers:Java_Printing_Notes modified by Federico Alcantara

Federico Alcantara — Thu, 26 Jun 2014 21:07:04 -0000

--- v19
+++ v20
@@ -75,3 +75,9 @@

     PdfUtils.closePageable(pageable);
     }
+
+#### _**Pageable / Printable behavior**_
+
+As you can see Pageable and Printable interface are treated as DocFlavor.SERVICE_FORMATTED, and this means that the service formats or interprets the document sent to it. So you will see that the same document might look different when printer from different operating system platform or printers (PrintService). 
+
+When printing try to use a PDF renderer if your printer supports PDF documents. Converting PDF to images does not produce good quality output.

Developers:Java_Printing_Notes modified by Federico Alcantara

Federico Alcantara — Thu, 26 Jun 2014 21:07:04 -0000

--- v18
+++ v19
@@ -2,7 +2,7 @@

 ## PrintService Attributes DocFlavor DocPrintJob PrinterJob...

-Unfortunately, to take full advantage of Wubiq, you must become familiar with the Java Printing API. While you can dig deep into it, this section will clarify the most relevant topics. 
+To take full advantage of Wubiq, you must become familiar with the Java Printing API. While you can dig deep into it, this section will clarify the most relevant topics. 

 ### **PrintService: Where to print**

@@ -56,7 +56,7 @@
     throw new RuntimeException("Printer not available");
     }
     // Get a new instance of PrinterJob. You must first set it up to let Wubiq handle the printing routing.
-    // The initialization is only required once, calling it multiple times is not harmful.
+    // The initialization is only required once per JVM instance, calling it multiple times is not harmful.
     PrinterJobManager.initializePrinterJobManager();
     PrinterJob printerJob = PrinterJob.getPrinterJob();
     // Sets the print job and print request attributes. Notice that OrientationRequested also implements PrintRequestAttribute

Developers:Java_Printing_Notes modified by Federico Alcantara

Federico Alcantara — Thu, 26 Jun 2014 21:07:04 -0000

--- v17
+++ v18
@@ -57,8 +57,9 @@
     }
     // Get a new instance of PrinterJob. You must first set it up to let Wubiq handle the printing routing.
     // The initialization is only required once, calling it multiple times is not harmful.
-    PrinterJobManager.initialize();
+    PrinterJobManager.initializePrinterJobManager();
     PrinterJob printerJob = PrinterJob.getPrinterJob();
+    // Sets the print job and print request attributes. Notice that OrientationRequested also implements PrintRequestAttribute
     PrintRequestAttributeSet requestAttributes = new HashPrintRequestAttributeSet();
     requestAttributes.add(MediaSizeName.NA_LETTER);
     requestAttributes.add(OrientationRequested.LANDSCAPE);
@@ -68,9 +69,9 @@
     Pageable pageable = PdfUtils.pdfToPageable(pdfDoc);
     try {

-    printerJob.setPageable(pageable)
-    printerJob.print(requestAttributes)
+    printerJob.setPageable(pageable);
+    printerJob.print(requestAttributes);
     } finally {

-    PdfUtils.closePageable(pageable)
+    PdfUtils.closePageable(pageable);
     }

Developers:Java_Printing_Notes modified by Federico Alcantara

Federico Alcantara — Thu, 26 Jun 2014 21:07:04 -0000

--- v16
+++ v17
@@ -49,14 +49,28 @@
     // Then set the print job and print request attributes
     PrintRequestAttributeSet requestAttributes = new HashPrintRequestAttributeSet();
     requestAttributes.add(MediaSizeName.NA_LETTER);
-    printJob.print(doc, requestAttributes);// Open the PDF document
-    InputStream pdfDoc = new FileInputStream("My_Document.pdf");
-    // Wubiq can convert PDF to Pageable. This document must be closed.
-    Pageable pageable = PdfUtils.pdfToPageable(pdfDoc);
-    try {
+    printJob.print(doc, requestAttributes);// Let's gather the PrintService first
+    PrintService printService = PrintServiceLookup.lookupDefaultPrintService()
+    if (printService == null) {

+    throw new RuntimeException("Printer not available");
+    }
     // Get a new instance of PrinterJob. You must first set it up to let Wubiq handle the printing routing.
     // The initialization is only required once, calling it multiple times is not harmful.
     PrinterJobManager.initialize();
     PrinterJob printerJob = PrinterJob.getPrinterJob();
+    PrintRequestAttributeSet requestAttributes = new HashPrintRequestAttributeSet();
+    requestAttributes.add(MediaSizeName.NA_LETTER);
+    requestAttributes.add(OrientationRequested.LANDSCAPE);
+    // Open the PDF document
+    InputStream pdfDoc = new FileInputStream("My_Document.pdf");
+    // Wubiq can convert PDF to Pageable. This document must be closed after printing.
+    Pageable pageable = PdfUtils.pdfToPageable(pdfDoc);
+    try {
+
     printerJob.setPageable(pageable)
+    printerJob.print(requestAttributes)
+    } finally {
+
+    PdfUtils.closePageable(pageable)
+    }

Developers:Java_Printing_Notes modified by Federico Alcantara

Federico Alcantara — Thu, 26 Jun 2014 21:07:04 -0000

--- v15
+++ v16
@@ -55,4 +55,8 @@
     Pageable pageable = PdfUtils.pdfToPageable(pdfDoc);
     try {

-    PrinterJob printerJob = PrinterJob.
+    // Get a new instance of PrinterJob. You must first set it up to let Wubiq handle the printing routing.
+    // The initialization is only required once, calling it multiple times is not harmful.
+    PrinterJobManager.initialize();
+    PrinterJob printerJob = PrinterJob.getPrinterJob();
+    printerJob.setPageable(pageable)

Developers:Java_Printing_Notes modified by Federico Alcantara

Federico Alcantara — Thu, 26 Jun 2014 21:07:04 -0000

--- v14
+++ v15
@@ -49,4 +49,10 @@
     // Then set the print job and print request attributes
     PrintRequestAttributeSet requestAttributes = new HashPrintRequestAttributeSet();
     requestAttributes.add(MediaSizeName.NA_LETTER);
-    printJob.print(doc, requestAttributes);
+    printJob.print(doc, requestAttributes);// Open the PDF document
+    InputStream pdfDoc = new FileInputStream("My_Document.pdf");
+    // Wubiq can convert PDF to Pageable. This document must be closed.
+    Pageable pageable = PdfUtils.pdfToPageable(pdfDoc);
+    try {
+
+    PrinterJob printerJob = PrinterJob.

Developers:Java_Printing_Notes modified by Federico Alcantara

Federico Alcantara — Thu, 26 Jun 2014 21:07:04 -0000