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01  import javax.swing.*;
02  import javax.swing.text.*;
03  
04  import java.awt.*;
05  import java.awt.event.*;
06  
07  import com.holub.ui.User_interface;
08  import com.holub.ui.AncestorAdapter;
09  import com.holub.ui.Form;
10  import com.holub.tools.Std;
11  
12  public class Employee implements User_interface
13  {
14      private static Form form = new Form();
15      static
16      {   form.add_field( new JLabel  ("Name:"),
17                            new Rectangle ( 0,  0,  75,  20 ) );
18                                      //    x   y  width height
19  
20          form.add_field( "Employee", "name",
21                            new Rectangle ( 75, 0,  200, 20 ) );
22  
23          form.add_field( new JLabel  ("Salary:"),
24                            new Rectangle ( 0,  30, 75,  20 ) );
25  
26          form.add_field( "Employee", "salary",
27                            new Rectangle ( 75, 30, 200, 20 ) );
28      }
28      //------------------------------------------------------------
20  
31      private double   salary = 1000000000.0;     // works for Microsoft
32      private Document name   = new PlainDocument();
33  
34      //------------------------------------------------------------
35      public JComponent visual_proxy( String attribute )
36      {   JComponent proxy = null;
37  
38          if( attribute.equals("salary") )
39          {   proxy = new JLabel( "" + salary );
40          }
41          else if( attribute.equals("name") )
42          {   proxy = new JTextField( name, null, 0 );
43          }
44          else
45          {   Std.err().println("Illegal attribute requested");
46          }
47  
48          return proxy;
49      }
50      //------------------------------------------------------------
51  
52      public String toString()
53      {   try
54          {   String name_value =   name.getLength() == 0
55                                  ? "n/a"
56                                  : name.getText(0,name.getLength())
57                                  ;
58  
59              return "name=" + name_value + ", salary=" + salary;
60          }
61          catch( BadLocationException e ) // shouldn't happen
62          {   throw new Error("Internal error, bad location in Employee name");
63          }
64      }
65  
66      public Employee()
67      {   form.attach(this);  // attach attributes of current object to
68                              // the form.
69  
70          // could be a JDialog rather than a JFrame if you want it to
71          // be modal.
72  
73          JComponent complete_form = create_initialization_form( form );
74  
75          JFrame frame = new JFrame("New Employee");
76          frame.getContentPane().add( complete_form );
77          frame.pack();
78          frame.show();
79  
80          // Wait for the form to shut down:
81  
82          form.wait_for_close();
83      }
84  
85      protected JComponent create_initialization_form( JComponent base_class_attributes )
86      {   return base_class_attributes;
87      }
88  
89      //------------------------------------------------------------
90      public static void main( String[] args ) throws Exception
91      {   Employee bill = new Employee();
92          Std.out().println( bill.toString() );
93          System.exit(0);
94      }
95  }