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1
7
8 package org.jdesktop.swing.table;
9
10 import java.awt.Component  ;
11 import java.awt.Color ;
12 import java.awt.FontMetrics ;
13 import java.awt.Graphics ;
14 import java.awt.Rectangle ;
15
16 import java.awt.geom.Rectangle2D ;
17
18 import java.text.DateFormat ;
19 import java.text.NumberFormat ;
20
21 import java.util.Date ;
22 import java.util.HashMap ;
23
24 import javax.swing.Icon ;
25 import javax.swing.JCheckBox ;
26 import javax.swing.JLabel ;
27 import javax.swing.JTable ;
28 import javax.swing.SwingConstants ;
29 import javax.swing.table.TableCellRenderer ;
30 import javax.swing.table.DefaultTableCellRenderer ;
31
32 import org.jdesktop.swing.data.Link;
33
34 public class TableCellRenderers {
35
36 private static HashMap typeMap;
37
38 static {
39 typeMap = new HashMap ();
42 typeMap.put(Number .class,
43 "org.jdesktop.swing.table.TableCellRenderers$NumberRenderer");
44 typeMap.put(Double .class,
45 "org.jdesktop.swing.table.TableCellRenderers$DoubleRenderer");
46 typeMap.put(Float .class,
47 "org.jdesktop.swing.table.TableCellRenderers$DoubleRenderer");
48 typeMap.put(Date .class,
49 "org.jdesktop.swing.table.TableCellRenderers$DateRenderer");
50 typeMap.put(Icon .class,
51 "org.jdesktop.swing.table.TableCellRenderers$IconRenderer");
52 typeMap.put(Boolean .class,
53 "org.jdesktop.swing.table.TableCellRenderers$BooleanRenderer");
54 typeMap.put(Link.class,
55 "org.jdesktop.swing.table.TableCellRenderers$LinkRenderer");
56
57 }
58
59 private static String getRendererClassName(Class columnClass) {
60 String rendererClassName = (String ) typeMap.get(columnClass);
61 return rendererClassName != null ? rendererClassName :
62 "javax.swing.table.DefaultTableCellRenderer";
63 }
64
65
71 public static void setDefaultRenderer(Class columnClass, String rendererClassName) {
72 typeMap.put(columnClass, rendererClassName);
73 }
74
75
84 public static TableCellRenderer getNewDefaultRenderer(Class columnClass) {
85 TableCellRenderer renderer = null;
86 String rendererClassName = getRendererClassName(columnClass);
87 try {
88 Class rendererClass = Class.forName(rendererClassName);
89 renderer = (TableCellRenderer ) rendererClass.newInstance();
90 }
91 catch (Exception e) {
92 renderer = new DefaultTableCellRenderer ();
93 }
94 return renderer;
95 }
96
97 TableCellRenderers() {
98 }
99
100
109 static class NumberRenderer extends DefaultTableCellRenderer {
110 public NumberRenderer() {
111 super();
112 setHorizontalAlignment(JLabel.RIGHT);
113 }
114 }
115
116 static class DoubleRenderer extends NumberRenderer {
117 NumberFormat formatter;
118 public DoubleRenderer() {
119 super();
120 }
121
122 public void setValue(Object value) {
123 if (formatter == null) {
124 formatter = NumberFormat.getInstance();
125 }
126 setText( (value == null) ? "" : formatter.format(value));
127 }
128 }
129
130 static class DateRenderer extends DefaultTableCellRenderer {
131 DateFormat formatter;
132 public DateRenderer() {
133 super();
134 }
135
136 public void setValue(Object value) {
137 if (formatter == null) {
138 formatter = DateFormat.getDateInstance();
139 }
140 setText( (value == null) ? "" : formatter.format(value));
141 }
142 }
143
144 static class IconRenderer extends DefaultTableCellRenderer {
145 public IconRenderer() {
146 super();
147 setHorizontalAlignment(JLabel.CENTER);
148 }
149
150 public void setValue(Object value) {
151 setIcon( (value instanceof Icon ) ? (Icon ) value : null);
152 }
153 }
154
155 static class BooleanRenderer extends JCheckBox
156 implements TableCellRenderer {
157 public BooleanRenderer() {
158 super();
159 setHorizontalAlignment(JLabel.CENTER);
160 }
161
162 public Component getTableCellRendererComponent(JTable table,
163 Object value,
164 boolean isSelected, boolean hasFocus, int row, int column) {
165 if (isSelected) {
166 setForeground(table.getSelectionForeground());
167 super.setBackground(table.getSelectionBackground());
168 }
169 else {
170 setForeground(table.getForeground());
171 setBackground(table.getBackground());
172 }
173 setSelected( (value != null && ( (Boolean ) value).booleanValue()));
174 return this;
175 }
176 }
177
178
181 public static class LinkRenderer extends DefaultTableCellRenderer {
182
183 private static Color colorLive = new Color (0, 0, 238);
185 private static Color colorVisited = new Color (82, 24, 139);
186
187 public void setValue(Object value) {
188 if (value != null && value instanceof Link) {
189 Link link = (Link) value;
190
191 setText(link.getText());
192 setToolTipText(link.getURL().toString());
193
194 if (link.getVisited()) {
195 setForeground(colorVisited);
196 }
197 else {
198 setForeground(colorLive);
199 }
200 }
201 else {
202 super.setValue(value != null? value.toString() : "");
203 }
204 }
205
206 public void paintComponent(Graphics g) {
207 super.paintComponent(g);
208 if (!getText().equals("")) {
209 Rectangle rect = TableCellRenderers.getTextBounds(g, this);
213
214 FontMetrics fm = g.getFontMetrics();
215 int descent = fm.getDescent();
216
217
220 g.drawLine(rect.x, (rect.y + rect.height) - descent + 1,
221 rect.x + rect.width,
222 (rect.y + rect.height) - descent + 1);
223 }
224 }
225 }
226
227
228
232 static Rectangle getTextBounds(Graphics g, JLabel label) {
233
234 FontMetrics fm = g.getFontMetrics();
235 Rectangle2D r2d = fm.getStringBounds(label.getText(), g);
236 Rectangle rect = r2d.getBounds();
237
238 int xOffset = 0;
239 switch (label.getHorizontalAlignment()) {
240 case SwingConstants.RIGHT:
241 case SwingConstants.TRAILING:
242 xOffset = label.getBounds().width - rect.width;
243 break;
244
245 case SwingConstants.CENTER:
246 xOffset = (label.getBounds().width - rect.width)/2;
247 break;
248
249 default:
250 case SwingConstants.LEFT:
251 case SwingConstants.LEADING:
252 xOffset = 0;
253 break;
254 }
255
256 int yOffset = 0;
257 switch (label.getVerticalAlignment()) {
258 case SwingConstants.TOP:
259 yOffset = 0;
260 break;
261 case SwingConstants.CENTER:
262 yOffset = (label.getBounds().height - rect.height)/2;
263 break;
264 case SwingConstants.BOTTOM:
265 yOffset = label.getBounds().height - rect.height;
266 break;
267 }
268 return new Rectangle (xOffset, yOffset, rect.width, rect.height);
269 }
270
271
272
273 }
274 |
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