1 /*
2 * Copyright (c) 2006, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 package sun.tools.jconsole;
27
28 import java.awt.*;
29 import java.util.ArrayList;
30
31 import javax.swing.*;
32 import javax.swing.border.*;
33
34
35 @SuppressWarnings("serial")
36 class OverviewTab extends Tab {
37 JPanel gridPanel;
38 TimeComboBox timeComboBox;
39
40 public static String getTabName() {
41 return Messages.OVERVIEW;
42 }
43
44 public OverviewTab(VMPanel vmPanel) {
45 super(vmPanel, getTabName());
46
47 setBorder(new EmptyBorder(4, 4, 3, 4));
48 setLayout(new BorderLayout());
49
50 JPanel topPanel = new JPanel(new BorderLayout());
51 add(topPanel, BorderLayout.NORTH);
52
53 JPanel controlPanel = new JPanel(new FlowLayout(FlowLayout.CENTER, 20, 5));
54 topPanel.add(controlPanel, BorderLayout.CENTER);
55
56 timeComboBox = new TimeComboBox();
57 LabeledComponent lc = new LabeledComponent(Messages.TIME_RANGE_COLON,
58 Resources.getMnemonicInt(Messages.TIME_RANGE_COLON),
59 timeComboBox);
60 controlPanel.add(lc);
61
62 gridPanel = new JPanel(new AutoGridLayout(10, 6));
63 gridPanel.setBorder(null);
64 JScrollPane sp = new JScrollPane(gridPanel);
65 sp.setBorder(null);
66 sp.setViewportBorder(null);
67 add(sp, BorderLayout.CENTER);
68
69 // Note that panels are added on first update
70 }
71
72
73 public SwingWorker<?, ?> newSwingWorker() {
74 return new SwingWorker<Object, Object>() {
75 public Object doInBackground() {
76 return null;
77 }
78
79 protected void done() {
80 if (gridPanel.getComponentCount() == 0) {
81 final ArrayList<Plotter> plotters = new ArrayList<Plotter>();
82 for (Tab tab : vmPanel.getTabs()) {
83 OverviewPanel[] ops = tab.getOverviewPanels();
84 if (ops != null) {
85 for (OverviewPanel op : ops) {
86 gridPanel.add(op);
87 Plotter plotter = op.getPlotter();
88 if (plotter != null) {
89 plotters.add(plotter);
90 timeComboBox.addPlotter(plotter);
91 }
92 }
93 }
94 }
95 if (plotters.size() > 0) {
96 workerAdd(new Runnable() {
97 public void run() {
98 ProxyClient proxyClient = vmPanel.getProxyClient();
99 for (Plotter plotter : plotters) {
100 proxyClient.addWeakPropertyChangeListener(plotter);
101 }
102 }
103 });
104 }
105 if (getParent() instanceof JTabbedPane) {
106 Utilities.updateTransparency((JTabbedPane)getParent());
107 }
108 }
109 }
110 };
111 }
112
113
114
115 private class AutoGridLayout extends GridLayout {
116 public AutoGridLayout(int hGap, int vGap) {
117 super(0, 1, hGap, vGap);
118 }
119
120 public Dimension preferredLayoutSize(Container parent) {
121 return minimumLayoutSize(parent);
122 }
123
124 public Dimension minimumLayoutSize(Container parent) {
125 updateColumns(parent);
126 return super.minimumLayoutSize(parent);
127 }
128
129 private void updateColumns(Container parent) {
130 // Use the outer panel width, not the scrolling gridPanel
131 int parentWidth = OverviewTab.this.getWidth();
132
133 int columnWidth = 1;
134
135 for (Component c : parent.getComponents()) {
136 columnWidth = Math.max(columnWidth, c.getPreferredSize().width);
137 }
138
139 int n = parent.getComponentCount();
140 int maxCols = Math.min(n, parentWidth / columnWidth);
141
142 for (int columns = maxCols; columns >= 1; columns--) {
143 if (columns == 1) {
144 setColumns(maxCols);
145 } else if ((n % columns) == 0) {
146 setColumns(columns);
147 break;
148 }
149 }
150 }
151 }
152 }