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1
22
23 package salsa;
24
25 import java.awt.*;
26 import java.awt.event.*;
27 import javax.swing.*;
28 import javax.swing.event.*;
29
30
33
34 public class OpenList extends JPanel
35 implements ListSelectionListener, ActionListener
36 {
37 JList _list;
38 JScrollPane _scroll;
39 JTextField _text;
40 JLabel _title;
41
42 public OpenList( String  data[], String title )
43 {
44 setLayout( null );
45
46 _title = new JLabel( title, JLabel.LEFT );
47 add( _title );
48
49 _text = new JTextField();
50 _text.addActionListener( this );
51 add( _text );
52
53 _list = new JList( data );
54 _list.setVisibleRowCount( 4 );
55 _list.addListSelectionListener( this );
56
57 _scroll = new JScrollPane( _list );
58 add( _scroll );
59 }
60
61 public void setSelected( String value )
62 {
63 _list.setSelectedValue( value, true );
64 _text.setText( value );
65 }
66
67 public void setSelectedInt( int value )
68 {
69 setSelected( "" + value );
70 }
71
72 public Dimension getMaximumSize()
73 {
74 Insets ins = getInsets();
75 Dimension d1 = _title.getMaximumSize();
76 Dimension d2 = _text.getMaximumSize();
77 Dimension d3 = _scroll.getMaximumSize();
78
79 int w = Math.max( Math.max( d1.width, d2.width ), d3.width );
80 int h = d1.height + d2.height + d3.height;
81
82 return new Dimension( w + ins.left + ins.right,
83 h + ins.top + ins.bottom );
84 }
85
86 public Dimension getMinimumSize()
87 {
88 Insets ins = getInsets();
89 Dimension d1 = _title.getMinimumSize();
90 Dimension d2 = _text.getMinimumSize();
91 Dimension d3 = _scroll.getMinimumSize();
92
93 int w = Math.max( Math.max( d1.width, d2.width ), d3.width );
94 int h = d1.height + d2.height + d3.height;
95
96 return new Dimension( w + ins.left + ins.right,
97 h + ins.top + ins.bottom );
98 }
99
100 public Dimension getPreferredSize()
101 {
102 Insets ins = getInsets();
103 Dimension d1 = _title.getPreferredSize();
104 Dimension d2 = _text.getPreferredSize();
105 Dimension d3 = _scroll.getPreferredSize();
106
107 int w = Math.max( Math.max( d1.width, d2.width ), d3.width );
108 int h = d1.height + d2.height + d3.height;
109
110 return new Dimension( w + ins.left + ins.right,
111 h + ins.top + ins.bottom );
112 }
113
114 public String getSelected()
115 {
116 return _text.getText();
117 }
118
119 public int getSelectedInt()
120 {
121 try
122 {
123 return Integer.parseInt( getSelected() );
124 }
125 catch( NumberFormatException nex )
126 {
127 return -1;
128 }
129 }
130
131 public void actionPerformed( ActionEvent ev )
132 {
133
135 ListModel model = _list.getModel();
136 String key = _text.getText().toLowerCase();
137 for( int i = 0; i < model.getSize(); i++ )
138 {
139 String data = ( String ) model.getElementAt( i );
140 if( data.toLowerCase().startsWith( key ) )
141 {
142 _list.setSelectedValue( data, true );
143 break;
144 }
145 }
146 }
147
148 public void addListSelectionListener( ListSelectionListener l )
149 {
150 _list.addListSelectionListener( l );
151 }
152
153 public void doLayout()
154 {
155 Insets ins = getInsets();
156 Dimension d = getSize();
157 int x = ins.left;
158 int y = ins.top;
159 int w = d.width - ins.left - ins.right;
160 int h = d.height - ins.top - ins.bottom;
161
162 Dimension d1 = _title.getPreferredSize();
163 _title.setBounds( x, y, w, d1.height );
164 y += d1.height;
165
166 Dimension d2 = _text.getPreferredSize();
167 _text.setBounds( x, y, w, d2.height );
168 y += d2.height;
169
170 _scroll.setBounds( x, y, w, h - y );
171 }
172
173 public void valueChanged( ListSelectionEvent ev )
174 {
175 Object obj = _list.getSelectedValue();
177 if( obj != null )
178 _text.setText( obj.toString() );
179 }
180 }
181 |
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