/
MainPanel.java
236 lines (210 loc) · 7.75 KB
/
MainPanel.java
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
// -*- mode:java; encoding:utf-8 -*-
// vim:set fileencoding=utf-8:
// @homepage@
package example;
import java.awt.*;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.awt.event.MouseMotionListener;
import java.io.IOException;
import java.net.MalformedURLException;
import java.net.URISyntaxException;
import java.net.URL;
import java.util.Objects;
import javax.swing.*;
import javax.swing.table.DefaultTableCellRenderer;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableCellRenderer;
import javax.swing.table.TableColumn;
import javax.swing.table.TableColumnModel;
import javax.swing.table.TableModel;
public final class MainPanel extends JPanel {
private MainPanel() {
super(new BorderLayout());
JTable table = new JTable(makeModel()) {
private final Color evenColor = new Color(0xFA_FA_FA);
private transient UrlRenderer handler;
@Override public Component prepareRenderer(TableCellRenderer tcr, int row, int column) {
Component c = super.prepareRenderer(tcr, row, column);
c.setForeground(getForeground());
c.setBackground(row % 2 == 0 ? evenColor : getBackground());
return c;
}
@Override public void updateUI() {
removeMouseListener(handler);
removeMouseMotionListener(handler);
super.updateUI();
setRowSelectionAllowed(true);
setSelectionMode(ListSelectionModel.SINGLE_INTERVAL_SELECTION);
setIntercellSpacing(new Dimension());
setShowGrid(false);
putClientProperty("terminateEditOnFocusLost", Boolean.TRUE);
setAutoCreateRowSorter(true);
TableColumnModel cm = getColumnModel();
TableColumn col = cm.getColumn(0);
col.setMinWidth(50);
col.setMaxWidth(50);
col.setResizable(false);
cm.getColumn(1).setPreferredWidth(1000);
cm.getColumn(2).setPreferredWidth(2000);
handler = new UrlRenderer();
setDefaultRenderer(URL.class, handler);
addMouseListener(handler);
addMouseMotionListener(handler);
}
};
JScrollPane scrollPane = new JScrollPane(table);
scrollPane.getViewport().setBackground(Color.WHITE);
add(scrollPane);
setPreferredSize(new Dimension(320, 240));
}
private static URL makeUrl(String path) {
URL url;
try {
url = new URL(path);
} catch (MalformedURLException ex) {
url = null;
}
return url;
}
private static TableModel makeModel() {
String[] columnNames = {"No.", "Name", "URL"};
Object[][] data = {
{0, "FrontPage", makeUrl("https://ateraimemo.com/")},
{1, "Java Swing Tips", makeUrl("https://ateraimemo.com/Swing.html")},
{2, "Example", makeUrl("http://www.example.com/")},
{3, "example.jp", makeUrl("http://www.example.jp/")}
};
return new DefaultTableModel(data, columnNames) {
@Override public Class<?> getColumnClass(int column) {
return getValueAt(0, column).getClass();
// switch (column) {
// case 0: return Integer.class;
// case 1: return String.class;
// case 2: return URL.class;
// default: return super.getColumnClass(column);
// }
}
@Override public boolean isCellEditable(int row, int col) {
return false;
}
};
}
public static void main(String[] args) {
EventQueue.invokeLater(MainPanel::createAndShowGui);
}
private static void createAndShowGui() {
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
} catch (UnsupportedLookAndFeelException ignored) {
Toolkit.getDefaultToolkit().beep();
} catch (ClassNotFoundException | InstantiationException | IllegalAccessException ex) {
ex.printStackTrace();
return;
}
JFrame frame = new JFrame("@title@");
frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
frame.getContentPane().add(new MainPanel());
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
}
class UrlRenderer extends DefaultTableCellRenderer implements MouseListener, MouseMotionListener {
private int viewRowIndex = -1;
private int viewColumnIndex = -1;
private boolean isRollover;
@Override public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) {
Component c = super.getTableCellRendererComponent(
table, value, isSelected, false, row, column);
if (c instanceof JLabel) {
JLabel l = (JLabel) c;
// @see https://ateraimemo.com/Swing/ClippedHtmlLabel.html
// String str = SwingUtilities.layoutCompoundLabel(...);
String str = Objects.toString(value, "");
if (isRolloverCell(table, row, column)) {
l.setText("<html><u><font color='blue'>" + str);
} else if (hasFocus) {
l.setText("<html><font color='blue'>" + str);
} else {
l.setText(str);
}
}
return c;
}
protected boolean isRolloverCell(JTable table, int row, int column) {
return !table.isEditing() && viewRowIndex == row && viewColumnIndex == column && isRollover;
}
private static boolean isUrlColumn(JTable table, int column) {
return column >= 0 && table.getColumnClass(column).equals(URL.class);
}
@Override public void mouseMoved(MouseEvent e) {
JTable table = (JTable) e.getComponent();
Point pt = e.getPoint();
int prevRow = viewRowIndex;
int prevCol = viewColumnIndex;
viewRowIndex = table.rowAtPoint(pt);
viewColumnIndex = table.columnAtPoint(pt);
boolean isSameCell = viewRowIndex == prevRow && viewColumnIndex == prevCol;
boolean prevRollover = isRollover;
isRollover = isUrlColumn(table, viewColumnIndex);
boolean isNotRollover = isRollover == prevRollover && !isRollover; // && !prevRollover;
if (isSameCell && isNotRollover) {
return;
}
// >>>> HyperlinkCellRenderer.java
// @see https://github.com/sjas/swingset3/blob/master/trunk/SwingSet3/src/com/sun/swingset3/demos/table/HyperlinkCellRenderer.java
Rectangle repaintRect;
if (isRollover) {
Rectangle r = table.getCellRect(viewRowIndex, viewColumnIndex, false);
repaintRect = prevRollover ? r.union(table.getCellRect(prevRow, prevCol, false)) : r;
} else { // if (prevRollover) {
repaintRect = table.getCellRect(prevRow, prevCol, false);
}
table.repaint(repaintRect);
// <<<<
// table.repaint();
}
@Override public void mouseExited(MouseEvent e) {
JTable table = (JTable) e.getComponent();
if (isUrlColumn(table, viewColumnIndex)) {
table.repaint(table.getCellRect(viewRowIndex, viewColumnIndex, false));
viewRowIndex = -1;
viewColumnIndex = -1;
isRollover = false;
}
}
@Override public void mouseClicked(MouseEvent e) {
JTable table = (JTable) e.getComponent();
Point pt = e.getPoint();
int col = table.columnAtPoint(pt);
if (isUrlColumn(table, col)) {
int crow = table.rowAtPoint(pt);
URL url = (URL) table.getValueAt(crow, col);
// System.out.println(url);
try {
// Web Start
// BasicService bs = (BasicService) ServiceManager.lookup("javax.jnlp.BasicService");
// bs.showDocument(url);
if (Desktop.isDesktopSupported()) {
Desktop.getDesktop().browse(url.toURI());
}
} catch (URISyntaxException | IOException ex) {
ex.printStackTrace();
UIManager.getLookAndFeel().provideErrorFeedback(e.getComponent());
}
}
}
@Override public void mouseDragged(MouseEvent e) {
/* not needed */
}
@Override public void mouseEntered(MouseEvent e) {
/* not needed */
}
@Override public void mousePressed(MouseEvent e) {
/* not needed */
}
@Override public void mouseReleased(MouseEvent e) {
/* not needed */
}
}