addressing #159 gross price. removing jaxb from zf1.

library/src/main/java/org/mustangproject/XMLTools.java

@@ -1,6 +1,32 @@
 package org.mustangproject;
 
+import java.math.BigDecimal;
+import java.math.RoundingMode;
+
 public class XMLTools {
+
+
+	public static String nDigitFormat(BigDecimal value, int scale) {
+		/*
+		 * I needed 123,45, locale independent.I tried
+		 * NumberFormat.getCurrencyInstance().format( 12345.6789 ); but that is locale
+		 * specific.I also tried DecimalFormat df = new DecimalFormat( "0,00" );
+		 * df.setDecimalSeparatorAlwaysShown(true); df.setGroupingUsed(false);
+		 * DecimalFormatSymbols symbols = new DecimalFormatSymbols();
+		 * symbols.setDecimalSeparator(','); symbols.setGroupingSeparator(' ');
+		 * df.setDecimalFormatSymbols(symbols);
+		 *
+		 * but that would not switch off grouping. Although I liked very much the
+		 * (incomplete) "BNF diagram" in
+		 * http://docs.oracle.com/javase/tutorial/i18n/format/decimalFormat.html in the
+		 * end I decided to calculate myself and take eur+sparator+cents
+		 *
+		 */
+		return value.setScale(scale, RoundingMode.HALF_UP).toPlainString();
+
+	}
+
+
 	public static String encodeXML(CharSequence s) {
 	    StringBuilder sb = new StringBuilder();
 	    int len = s.length();

library/src/main/java/org/mustangproject/ZUGFeRD/LineCalc.java

@@ -0,0 +1,39 @@
+package org.mustangproject.ZUGFeRD;
+
+import java.math.BigDecimal;
+
+public class LineCalc {
+	private BigDecimal totalGross;
+	private BigDecimal priceGross;
+	private BigDecimal itemTotalNetAmount;
+	private BigDecimal itemTotalVATAmount;
+
+	public LineCalc(IZUGFeRDExportableItem currentItem) {
+		BigDecimal multiplicator = currentItem.getProduct().getVATPercent().divide(new BigDecimal(100))
+				.add(new BigDecimal(1));
+		priceGross = currentItem.getPrice(); // see https://github.com/ZUGFeRD/mustangproject/issues/159
+		totalGross = currentItem.getQuantity().multiply(currentItem.getPrice()).divide(currentItem.getBasisQuantity())
+				.multiply(multiplicator);
+		itemTotalNetAmount = currentItem.getQuantity().multiply(currentItem.getPrice()).divide(currentItem.getBasisQuantity())
+				.setScale(2, BigDecimal.ROUND_HALF_UP);
+		itemTotalVATAmount = totalGross.subtract(itemTotalNetAmount);
+	}
+
+	public BigDecimal getItemTotalNetAmount() {
+		return itemTotalNetAmount;
+	}
+
+	public BigDecimal getItemTotalVATAmount() {
+		return itemTotalVATAmount;
+	}
+
+	public BigDecimal getItemTotalGrossAmount() {
+		return itemTotalVATAmount;
+	}
+
+	public BigDecimal getPriceGross() {
+		return priceGross;
+	}
+
+
+}