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1
19
20 package org.netbeans.swing.popupswitcher;
21
22 import java.awt.Color  ;
23 import java.awt.Component ;
24 import java.awt.Dimension ;
25 import java.awt.Font ;
26 import java.awt.FontMetrics ;
27 import java.awt.Graphics ;
28 import java.awt.Graphics2D ;
29 import java.awt.image.BufferedImage ;
30 import java.lang.ref.SoftReference ;
31 import javax.swing.BorderFactory ;
32 import javax.swing.Icon ;
33 import javax.swing.JTable ;
34 import javax.swing.UIManager ;
35 import javax.swing.border.Border ;
36 import javax.swing.table.DefaultTableCellRenderer ;
37 import javax.swing.table.TableCellRenderer ;
38 import org.openide.util.Utilities;
39
40
50 public class SwitcherTable extends JTable {
51
52 private static final Border rendererBorder =
53 BorderFactory.createEmptyBorder(2, 5, 0, 5);
54
55 private Icon nullIcon = new NullIcon();
56 private Color foreground;
57 private Color background;
58 private Color selForeground;
59 private Color selBackground;
60
61
62 private Dimension prefSize;
63
64
65
69 private boolean needCalcRowHeight = true;
70
71
75 public SwitcherTable(SwitcherTableItem[] items) {
76 this(items, 0);
77 }
78
79
84 public SwitcherTable(SwitcherTableItem[] items, int y) {
85 super();
86 init();
87 int gap = (y == 0 ? 10 : 5);
89 int height = Utilities.getUsableScreenBounds().height - y - gap;
90 setModel(new SwitcherTableModel(items, getRowHeight(), height));
91 getSelectionModel().clearSelection();
92 getSelectionModel().setAnchorSelectionIndex(-1);
93 getSelectionModel().setLeadSelectionIndex(-1);
94 }
95
96 private void init() {
97 setBorder(BorderFactory.createLineBorder(getForeground()));
98 setShowHorizontalLines(false);
99 calcRowHeight(getOffscreenGraphics());
101 }
102
103 public void updateUI() {
104 needCalcRowHeight = true;
105 super.updateUI();
106 }
107
108 public void setFont(Font f) {
109 needCalcRowHeight = true;
110 super.setFont(f);
111 }
112
113 public Component prepareRenderer(
114 TableCellRenderer renderer,
115 int row,
116 int column) {
117
118 SwitcherTableItem item
119 = (SwitcherTableItem) getSwitcherTableModel().getValueAt(row, column);
120
121 boolean selected = row == getSelectedRow() &&
122 column == getSelectedColumn() && item != null;
123
124 DefaultTableCellRenderer ren = (DefaultTableCellRenderer )
125 renderer.getTableCellRendererComponent(this, item,
126 selected, selected, row, column);
127
128 if (item == null) {
129 ren.setOpaque(false);
131 ren.setIcon(null);
132 return ren;
133 }
134
135 Icon icon = item.getIcon();
136 if (icon == null ) {
137 icon = nullIcon;
138 }
139 ren.setText(selected || item.isActive() ? item.getName() : item.getHtmlName());
140 ren.setIcon(icon);
141 ren.setBorder(rendererBorder);
142 ren.setIconTextGap(26 - icon.getIconWidth());
143
144 if (item.isActive()) {
145 ren.setFont(new Font (getFont().getName(), Font.BOLD, getFont().getSize()));
147 }
148
149 ren.setOpaque(true);
150
151 return ren;
152 }
153
154 private static class NullIcon implements Icon {
155 public int getIconWidth() { return 0; }
156 public int getIconHeight() { return 0; }
157 public void paintIcon(Component c, Graphics g, int x, int y) {}
158 }
159
160 public Color getForeground() {
161 if (foreground == null) {
162 foreground = UIManager.getColor("ComboBox.foreground");
163 }
164 return foreground != null ? foreground : super.getForeground();
165 }
166
167 public Color getBackground() {
168 if (background == null) {
169 background = UIManager.getColor("ComboBox.background");
170 }
171 return background != null ? background : super.getBackground();
172 }
173
174 public Color getSelectionForeground() {
175 if (selForeground == null) {
176 selForeground = UIManager.getColor("ComboBox.selectionForeground");
177 }
178 return selForeground != null ? selForeground : super.getSelectionForeground();
179 }
180
181 public Color getSelectionBackground() {
182 if (selBackground == null) {
183 selBackground = UIManager.getColor("ComboBox.selectionBackground");
184 }
185 return selBackground != null ? selBackground : super.getSelectionBackground();
186 }
187
188
195 private void calcRowHeight(Graphics g) {
196 Font f = getFont();
197 FontMetrics fm = g.getFontMetrics(f);
198 int rowHeight = Math.max(fm.getHeight(), 16) + 4;
200 needCalcRowHeight = false;
201 setRowHeight(rowHeight);
202 }
203
204 private static SoftReference <BufferedImage > ctx = null;
205
206
210 private static Graphics2D getOffscreenGraphics() {
211 BufferedImage result = null;
212 if (ctx != null) {
215 result = ctx.get();
216 }
217 if (result == null) {
218 result = new BufferedImage (10, 10, BufferedImage.TYPE_INT_RGB);
219 ctx = new SoftReference <BufferedImage >(result);
220 }
221 return (Graphics2D ) result.getGraphics();
222 }
223
224
229 public Dimension getPreferredSize() {
230 if (prefSize == null) {
231 int cols = getColumnCount();
232 int rows = getRowCount();
233
234 int columnWidth = 0;
236 for (int i = 0; i < cols; i++) {
237 for (int j = 0; j < rows; j++) {
238 TableCellRenderer ren = getCellRenderer(j,i);
239 Component c = prepareRenderer(ren, j, i);
240 columnWidth = Math.max(
242 c.getPreferredSize().width + 1, columnWidth);
243 }
244 }
245 columnWidth = Math.min(columnWidth, 250);
246 for (int i = 0; i < cols; i++) {
248 getColumnModel().getColumn(i).setPreferredWidth(columnWidth);
249 }
250 prefSize = new Dimension (columnWidth * cols, rows * getRowHeight());
252 }
253 return prefSize;
254 }
255
256 private SwitcherTableModel getSwitcherTableModel() {
257 return (SwitcherTableModel) getModel();
258 }
259
260 public SwitcherTableItem getSelectedItem() {
261 return (SwitcherTableItem) getValueAt(getSelectedRow(), getSelectedColumn());
262 }
263
264 public void paint(Graphics g) {
265 if (needCalcRowHeight) {
266 calcRowHeight(g);
267 }
268 super.paint(g);
269 }
270
271
277 public int getLastValidRow() {
278 int lastColIdx = getColumnCount() - 1;
279 for (int i = getRowCount() - 1; i >= 0; i--) {
280 if (getValueAt(i, lastColIdx) != null) {
281 return i;
282 }
283 }
284 return -1;
285 }
286 }
287 |
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