added basic printer support

src/main/java/com/jFxKasse/controller/MainWindowController.java

@@ -41,6 +41,7 @@ import com.jFxKasse.datatypes.Job;
 import com.jFxKasse.datatypes.tableDataCurrentOrder;
 import com.jFxKasse.datatypes.tableDataJob;
 import com.jFxKasse.datatypes.tableDataPositionen;
+import com.jFxKasse.datatypes.PrintDataSimple;
 
 public class MainWindowController
 {
@@ -565,6 +566,28 @@ public class MainWindowController
 				currentJob.createPosCatDBString(), "verbucht",
 				String.valueOf(currentJob.getJobValue()));
 
+		System.out.println(currentJob.getJobnumber());
+
+		PrinterController pc = new PrinterController();
+
+		pc.searchPrinters();
+
+		pc.selectPrinter("CUPS-PDF");
+
+		PrintDataSimple pds = new PrintDataSimple(28, 1, 2,
+				getSystemTime() + " " + getSystemDate(), "Firma GmbH",
+				"Vielen Dank für den Einkauf");
+
+		pds.setData(Integer.toString(currentJob.getJobnumber()),
+				dbc.getTime_Job(currentJob.getJobnumber()),
+				dbc.getQuantity_Job(currentJob.getJobnumber()),
+				dbc.getName_Job(currentJob.getJobnumber()),
+				dbc.getValue_Job(currentJob.getJobnumber()),
+				dbc.getCategory_Job(currentJob.getJobnumber()),
+				dbc.getJobValue_Job(currentJob.getJobnumber()));
+
+		pc.printString(pds.getPrintString());
+		
 		fillTableJobs();
 
 		currentJob = null;

src/main/java/com/jFxKasse/controller/PrinterController.java

@@ -0,0 +1,141 @@
+/**
+ *  some parts are from http://www.mets-blog.com/java-pos-thermal-printer-example/
+ */
+
+package com.jFxKasse.controller;
+
+import java.awt.Graphics;
+import java.awt.Graphics2D;
+import java.awt.print.PageFormat;
+import java.awt.print.Printable;
+import java.awt.print.PrinterException;
+import java.awt.print.PrinterJob;
+import java.nio.charset.StandardCharsets;
+
+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.attribute.HashPrintRequestAttributeSet;
+import javax.print.attribute.PrintRequestAttributeSet;
+
+public class PrinterController implements Printable
+{
+	// All available Printers on this system
+	private PrintService[] printService;
+
+	// selected printer
+	private PrintService selectedPrinter;
+
+	private DocFlavor flavor;
+
+	public PrinterController()
+	{
+		flavor = DocFlavor.BYTE_ARRAY.AUTOSENSE;
+	}
+
+	/**
+	 * @return A String array with all available printers
+	 */
+	public String[] getAvailablePrinters()
+	{
+		int printerSize = PrinterJob.lookupPrintServices().length;
+		String printers[] = new String[printerSize];
+
+		for (int i = 0; i < printers.length; i++) {
+			printers[i] = this.printService[i].getName();
+		}
+		return printers;
+	}
+
+	/**
+	 * searchs connected printers on the system
+	 */
+	public void searchPrinters()
+	{
+		PrintRequestAttributeSet pras = new HashPrintRequestAttributeSet();
+		this.printService = PrintServiceLookup.lookupPrintServices(flavor, pras);
+		String printers[] = getAvailablePrinters();
+		System.out.println("Printers found:");
+		System.out.println("++++++++++++++++++++");
+		for (int i = 0; i < printers.length; i++) {
+			System.out.println(printers[i]);
+		}
+		System.out.println("++++++++++++++++++++");
+	}
+
+	/**
+	 * Selects the printer via its name
+	 * @param printerName
+	 */
+	public void selectPrinter(String printerName)
+	{
+		String printers[] = getAvailablePrinters();
+
+		for (int i = 0; i < printers.length; i++) {
+			if (printerName.equals(printers[i])) {
+				selectedPrinter = printService[i];
+				System.out.println("Printer: " + printers[i] + " selected");
+				return;
+			}
+		}
+	}
+
+	/**
+	 * 
+	 * @param input data as String
+	 */
+	public void printString(String text)
+	{
+
+		PrintService service = selectedPrinter;
+		DocPrintJob job = service.createPrintJob();
+
+		try {
+			byte[] bytes;
+			bytes = text.getBytes(StandardCharsets.UTF_8);
+			Doc doc = new SimpleDoc(bytes, flavor, null);
+			job.print(doc, null);
+		} catch (Exception e) {
+			// TODO Auto-generated catch block
+			e.printStackTrace();
+		}
+	}
+
+	public int print(Graphics g, PageFormat pf, int page) throws PrinterException
+	{
+		if (page > 0) { /* We have only one page, and 'page' is zero-based */
+			return NO_SUCH_PAGE;
+		}
+
+		/*
+		 * User (0,0) is typically outside the imageable area, so we must
+		 * translate by the X and Y values in the PageFormat to avoid clipping
+		 */
+		Graphics2D g2d = (Graphics2D) g;
+		g2d.translate(pf.getImageableX(), pf.getImageableY());
+		/* Now we perform our rendering */
+		return PAGE_EXISTS;
+	}
+
+	public void printBytes(byte[] bytes)
+	{
+		PrintService service = selectedPrinter;
+		DocPrintJob job = service.createPrintJob();
+
+		try {
+			Doc doc = new SimpleDoc(bytes, flavor, null);
+			job.print(doc, null);
+		} catch (Exception e) {
+			e.printStackTrace();
+		}
+	}
+
+	public void cutPaper()
+	{
+		byte[] cutP = new byte[] { 0x1d, 'V', 1 };
+		printBytes(cutP);
+	}
+}

src/main/java/com/jFxKasse/datatypes/PrintData.java

@@ -0,0 +1,182 @@
+package com.jFxKasse.datatypes;
+
+public abstract class PrintData
+{
+
+	protected int headerSpace;
+
+	protected int footerSpace;
+
+	protected int lineBreak;
+
+	protected String header;
+
+	protected String footer;
+
+	protected String positionenQuantity;
+
+	protected String positionenName;
+
+	protected String positionenValue;
+
+	protected String positionenCategory;
+
+	protected String jobID;
+
+	protected String timeAndDateOrder;
+
+	protected String timeAndDatePrint;
+
+	protected String jobValue;
+
+	/**
+	 * Constructor with all data that is not in the DB
+	 * @param lineBreak
+	 * @param headerSpace
+	 * @param footerSpace
+	 * @param timeAndDatePrint
+	 * @param header
+	 * @param footer
+	 */
+	public PrintData(int lineBreak, int headerSpace, int footerSpace,
+			String timeAndDatePrint, String header, String footer)
+	{
+		this.lineBreak = lineBreak;
+		this.headerSpace = headerSpace;
+		this.footerSpace = footerSpace;
+		this.timeAndDatePrint = timeAndDatePrint;
+		this.header = header;
+		this.footer = footer;
+	}
+
+	/**
+	 * set all Data that is in the DB
+	 * @param jobID
+	 * @param timeAndDateOrder
+	 * @param positionenQuantity
+	 * @param positionenName
+	 * @param positionenValue
+	 * @param positionenCategory
+	 * @param jobValue
+	 */
+	public void setData(String jobID, String timeAndDateOrder,
+			String positionenQuantity, String positionenName,
+			String positionenValue, String positionenCategory, String jobValue)
+	{
+		this.jobID = jobID;
+		this.timeAndDateOrder = timeAndDateOrder;
+		this.positionenQuantity = positionenQuantity;
+		this.positionenName = positionenName;
+		this.positionenValue = positionenValue;
+		this.positionenCategory = positionenCategory;
+		this.jobValue = jobValue;
+
+	}
+
+	/**
+	 * 
+	 * @param data String
+	 * @return same String splitted with \n after the max. line lenght
+	 */
+	protected String breakLines(String data)
+	{
+		boolean next = false;
+
+		int count = lineBreak;
+
+		if (data.length() > lineBreak) {
+			// Needs to be splitted
+			next = true;
+		} else {
+			// No need to be splitted
+			return data;
+		}
+
+		// first part
+		String tmp = data.substring(0, lineBreak);
+
+		while (next) {
+
+			try {
+				tmp = tmp + "\n" + data.substring(count, lineBreak + count);
+				count = count + lineBreak;
+			} catch (Exception e) {
+				// data string not long enough
+				next = false;
+			}
+
+		}
+		// add the last part
+		return tmp + "\n" + data.substring(count);
+	}
+
+	/**
+	 * prints a line of '--------'
+	 * @return
+	 */
+	protected String getSeparator()
+	{
+		String tmp = "-";
+
+		for (int i = 1; i < lineBreak; i++) {
+			tmp = tmp + "-";
+		}
+		return tmp;
+	}
+
+	/**
+	 * sets a String into the center
+	 * @param data
+	 * @return the centered String
+	 */
+	protected String setCenter(String data)
+	{
+		int dataLenght = data.length();
+		int prefix = ((lineBreak - dataLenght) / 2);
+		String tmp = " ";
+
+		for (int i = 1; i < prefix; i++) {
+			tmp = tmp + " ";
+		}
+		tmp = tmp + data;
+		
+		return breakLines(tmp);
+	}
+
+	/**
+	 * sets a String right-justified after an prefix
+	 * @param prefix
+	 * @param data
+	 * @return the right-justified String
+	 */
+	protected String setRight(String prefix, String data)
+	{
+
+		int prefixLenght = prefix.length();
+
+		int dataLenght = data.length();
+
+		String tmp = prefix;
+
+		int fill = lineBreak - (prefixLenght + dataLenght);
+
+		if (fill < 0) {
+			tmp = tmp + "\n";
+			fill = lineBreak - dataLenght;
+		}
+
+		for (int i = 0; i < fill; i++) {
+			tmp = tmp + " ";
+		}
+
+		tmp = tmp + data;
+
+		return tmp;
+	}
+
+	/**
+	 * How the print String or Strings are made
+	 */
+	abstract protected void generatePrintString();
+
+}

src/main/java/com/jFxKasse/datatypes/PrintDataSimple.java

@@ -0,0 +1,93 @@
+package com.jFxKasse.datatypes;
+
+public class PrintDataSimple extends PrintData
+{
+
+	private String printString;
+
+	/**
+	 *  Constructor with all data that is not in the DB
+	 * @param lineBreak
+	 * @param headerSpace
+	 * @param footerSpace
+	 * @param timeAndDatePrint
+	 * @param header
+	 * @param footer
+	 */
+	public PrintDataSimple(int lineBreak, int headerSpace, int footerSpace,
+			String timeAndDatePrint, String header, String footer)
+	{
+		super(lineBreak, headerSpace, footerSpace, timeAndDatePrint, header,
+				footer);
+	}
+
+	/**
+	 * Generates the String
+	 * @return the final Print String
+	 */
+	public String getPrintString()
+	{
+		generatePrintString();
+		return this.printString;
+	}
+
+	@Override
+	protected void generatePrintString()
+	{
+		/* Header */
+		String header = "\n";
+		for (int i = 1; i < headerSpace; i++) {
+			header = header + "\n";
+		}
+
+		// This is the final header
+		header = header + setCenter(this.header);
+
+		/* Info */
+
+		String info = setRight("Bestellung: ", timeAndDateOrder) + "\n"
+				+ setRight("Druck: ", timeAndDatePrint) + "\n"
+				+ setRight("Bestellnummer: ", jobID);
+
+		/* Positionen */
+
+		String positionen = "\n";
+
+		int posCount = positionenQuantity.length()
+				- positionenQuantity.replace(";", "").length() + 1;
+
+		String[] positionQuantity = positionenQuantity.split(";");
+
+		String[] positionName = positionenName.split(";");
+
+		String[] positionValue = positionenValue.split(";");
+
+		for (int i = 0; i < posCount; i++) { //All different posNames
+			int quantity = Integer.parseInt(positionQuantity[i]);
+			for (int j = 0; j < quantity; j++) { //quantities
+				positionen = positionen + setRight(breakLines(positionName[i]),
+						positionValue[i] + " €") + "\n";
+			}
+		}
+
+		/* Price */
+
+		String price = setRight("Gesamt: ", (jobValue + " €"));
+
+		/* Footer */
+
+		String footer = setCenter(this.footer);
+
+		for (int i = 1; i < footerSpace; i++) {
+			footer = footer + "\n";
+		}
+		footer = footer + "_";
+
+		/* Build final Print String */
+
+		printString = header + "\n" + getSeparator() + "\n" + info + "\n"
+				+ getSeparator() + "\n" + positionen + "\n" + getSeparator() + "\n"
+				+ price + "\n" + getSeparator() + "\n" + footer;
+	}
+
+}