code39.java~6~

会议名片管理程序 3/9条形码生成

package cal;
import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.FontMetrics;
import java.awt.Graphics;
import java.awt.Toolkit;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.UIManager;
import cal.*;
/**
 * Powered by zms
 * \u00C7\u00EB\u00B2\u00BB\u00D2\u00AA\u00D3\u00C3\u00D3\u00DA\u00C9\u00CC\u00D2\u00B5\u00D3\u00C3\u00CD\u00BE
 * \u00C7\u00EB±\u00A3\u00C1\u00F4\u00C9\u00CF\u00C3\u00E6\u00B5\u00C4±ê\u00D6\u00BE
 */
public class Code39 extends JLabel {
        public void paint(Graphics g) {
                super.paint(g);
                  FontMetrics metrics=g.getFontMetrics();
                  int ha=metrics.getAscent()-metrics.getDescent();
                  int hb=ha/2;
                  int hc=line.height;
                  int hd=line.width;
                  int he=metrics.getAscent()-metrics.getDescent();
                  int totalheight=ha+hb+hc+hd+he;
                  int wb=line.width*95;
                  int wc=line.width;
                  int totalwidth=wb+wc;
                  Dimension dim=new Dimension(totalwidth,totalheight);
                  this.setMinimumSize(dim);
                  int x=(this.getWidth()-totalwidth)/2;
                  int y=(this.getHeight()-totalheight)/2;

                  drawUpc(g,x,y+ha+hb,hd+he/2);

                  g.drawString("*"+upc+"*",x+43,y+totalheight);

          }
         private static String[] CODEA
                                 =new String[]{
                                         "1010001110111010",
                                         "1110100010101110",
                                         "1011100010101110",
                                         "1110111000101010",
                                         "1010001110101110",
                                         "1110100011101010",
                                         "1011100011101010",
                                         "1010001011101110",
                                         "1110100010111010",
                                         "1011100010111010"
                                         };

         private void drawUpc(Graphics g,int x,int y,int t) {
                  int x1=x;
                  int one=line.width;
                  int height=line.height;
                  String s="";
                  for(int i=0;i<13;i++) {
                           s+=CODEA[upc.charAt(i)-'0'];

                  }
                  s="1000101110111010"+s+"1000101110111010";

                  int n=s.length();
                  for(int i=0;i<n;i++) {
                           if(s.charAt(i)=='1') {
                                    g.fillRect(x,y,one,height);
                          }
                           x+=one;
                  }



         }
        private String upc="3102104000001";
        public void setCode39(String s) {
                  if(s!=null && s.length()==13) {
                           boolean valid=true;
                           for(int i=0;i<13;i++) {
                            if(!Character.isDigit(s.charAt(i))) {
                                     valid=false;
                                     break;
                            }
                           }
                           if(valid) {
                            this.upc=s;
                            this.repaint();
                           }
                  }
         }


        public String getUpc() {
                  return this.upc;
         }

         private Dimension line=new Dimension(2,100);
         public void setLineDimension(Dimension dim) {
                  if(dim.width>0 && dim.height>0) {
                           this.line=new Dimension(dim.width,dim.height);
                           this.repaint();
                  }
         }
         public Dimension getLineDimension() {
                  return new Dimension(line.width,line.height);
         }

         //for test use
         public static void main(String[] args) {
                 try
                 {
                           UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
                  }
                  catch (Exception e) {}
                  JFrame frame=new JFrame("UPC Test");
                frame.setSize(500,500);
                  frame.getContentPane().setLayout(new BorderLayout());
                  //<usage>
                  Code39 upc=new Code39();
                  upc.setFont(new Font("Dialog",Font.PLAIN,16)); //×\u00D6\u00CC\u00E5
                  upc.setUpc("3102104000005");   //upc
                  upc.setLineDimension(new Dimension(1,50)); //×\u00EE\u00D0\u00A1\u00BA\u00DA\u00CF\u00DF\u00B5\u00C4size
                  frame.getContentPane().add(upc,BorderLayout.CENTER);
                  //</usage>
                  frame.addWindowListener(new WindowAdapter() {
                   public void windowClosing(WindowEvent e) {
                    System.exit(0);
                           }
                  });
                  Dimension screen=Toolkit.getDefaultToolkit().getScreenSize();
                  Dimension one=frame.getSize();
                  frame.setLocation((screen.width-one.width)/2,(screen.height-one.height)/2);
                  frame.setVisible(true);
         }
}