解决barbecue无法打印条码下的文字的问题

src/main/java/net/sourceforge/barbecue/Barcode.java

@@ -26,6 +26,22 @@
 
 package net.sourceforge.barbecue;
 
+import java.awt.Color;
+import java.awt.Dimension;
+import java.awt.Font;
+import java.awt.FontMetrics;
+import java.awt.Graphics;
+import java.awt.Graphics2D;
+import java.awt.Insets;
+import java.awt.Rectangle;
+import java.awt.print.PageFormat;
+import java.awt.print.Printable;
+import java.awt.print.PrinterException;
+import java.text.CharacterIterator;
+import java.text.StringCharacterIterator;
+
+import javax.swing.JComponent;
+
 import net.sourceforge.barbecue.env.EnvironmentFactory;
 import net.sourceforge.barbecue.env.HeadlessEnvironment;
 import net.sourceforge.barbecue.output.GraphicsOutput;
@@ -33,21 +49,6 @@ import net.sourceforge.barbecue.output.Output;
 import net.sourceforge.barbecue.output.OutputException;
 import net.sourceforge.barbecue.output.SizingOutput;
 
-import javax.swing.*;
-
-import java.awt.*;
-import java.awt.event.ActionEvent;
-import java.awt.event.ActionListener;
-import java.awt.event.MouseAdapter;
-import java.awt.event.MouseListener;
-import java.awt.event.MouseEvent;
-import java.awt.print.PageFormat;
-import java.awt.print.Printable;
-import java.awt.print.PrinterException;
-import java.awt.print.PrinterJob;
-import java.text.CharacterIterator;
-import java.text.StringCharacterIterator;
-
 /**
  * Abstract barcode class that provides functionality that is common to
  * all barcodes. Specific barcode implementations must subclass
@@ -58,7 +59,9 @@ import java.text.StringCharacterIterator;
 public abstract class Barcode extends JComponent 
 	implements Printable {
 
-    private static final int DEFAULT_BAR_HEIGHT = 50;
+	private static final long serialVersionUID = 1L;
+
+	private static final int DEFAULT_BAR_HEIGHT = 50;
 
     protected String data;
     protected String label;
@@ -83,7 +86,7 @@ public abstract class Barcode extends JComponent
         } else {
             this.barHeight = Barcode.DEFAULT_BAR_HEIGHT;
         }
-        this.font = EnvironmentFactory.getEnvironment().getDefaultFont();
+        this.font=new Font("Microsoft YaHei UI",Font.PLAIN,12);
         this.drawingText = true;
         setBackground(Color.white);
         setForeground(Color.black);
@@ -424,8 +427,16 @@ public abstract class Barcode extends JComponent
         Dimension d = new Dimension();
         if (EnvironmentFactory.getEnvironment() instanceof HeadlessEnvironment) {
             try {
-                d = draw(new SizingOutput(font, getForeground(), getBackground()), 0, 0, barWidth, barHeight);
+            	if(font == null)
+                {
+                    d = draw(new SizingOutput(font, getForeground(), getBackground()), 0, 0, barWidth, barHeight);
+                } else
+                {
+                    java.awt.FontMetrics fontMetrics = getFontMetrics(font);
+                    d = draw(new SizingOutput(font, fontMetrics, getForeground(), getBackground()), 0, 0, barWidth, barHeight);
+                }
             } catch (OutputException e) {
+            	 e.printStackTrace();
             }
         } else {
             try {