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 import sun.tools.jconsole.resources.Messages;
35
36 @SuppressWarnings("serial")
37 class OverviewTab extends Tab {
38 JPanel gridPanel;
39 TimeComboBox timeComboBox;
40
41 public static String getTabName() {
42 return Messages.OVERVIEW;
43 }
44
45 public OverviewTab(VMPanel vmPanel) {
46 super(vmPanel, getTabName());
47
48 setBorder(new EmptyBorder(4, 4, 3, 4));
49 setLayout(new BorderLayout());
50
51 JPanel topPanel = new JPanel(new BorderLayout());
52 add(topPanel, BorderLayout.NORTH);
53
54 JPanel controlPanel = new JPanel(new FlowLayout(FlowLayout.CENTER, 20, 5));
55 topPanel.add(controlPanel, BorderLayout.CENTER);
56
57 timeComboBox = new TimeComboBox();
58 LabeledComponent lc = new LabeledComponent(Messages.TIME_RANGE_COLON,
59 Resources.getMnemonicInt(Messages.TIME_RANGE_COLON),
60 timeComboBox);
61 controlPanel.add(lc);
62
63 gridPanel = new JPanel(new AutoGridLayout(10, 6));
64 gridPanel.setBorder(null);
65 JScrollPane sp = new JScrollPane(gridPanel);
66 sp.setBorder(null);
67 sp.setViewportBorder(null);
68 add(sp, BorderLayout.CENTER);
69
70 // Note that panels are added on first update
71 }
72
73
74 public SwingWorker<?, ?> newSwingWorker() {
75 return new SwingWorker<Object, Object>() {
76 public Object doInBackground() {
77 return null;
78 }
79
80 protected void done() {
81 if (gridPanel.getComponentCount() == 0) {
82 final ArrayList<Plotter> plotters = new ArrayList<Plotter>();
83 for (Tab tab : vmPanel.getTabs()) {
84 OverviewPanel[] ops = tab.getOverviewPanels();
85 if (ops != null) {
86 for (OverviewPanel op : ops) {
87 gridPanel.add(op);
88 Plotter plotter = op.getPlotter();
89 if (plotter != null) {
90 plotters.add(plotter);
91 timeComboBox.addPlotter(plotter);
92 }
93 }
94 }
95 }
96 if (plotters.size() > 0) {
97 workerAdd(new Runnable() {
98 public void run() {
99 ProxyClient proxyClient = vmPanel.getProxyClient();
100 for (Plotter plotter : plotters) {
101 proxyClient.addWeakPropertyChangeListener(plotter);
102 }
103 }
104 });
105 }
106 if (getParent() instanceof JTabbedPane) {
107 Utilities.updateTransparency((JTabbedPane)getParent());
108 }
109 }
110 }
111 };
112 }
113
114
115
116 private class AutoGridLayout extends GridLayout {
117 public AutoGridLayout(int hGap, int vGap) {
118 super(0, 1, hGap, vGap);
119 }
120
121 public Dimension preferredLayoutSize(Container parent) {
122 return minimumLayoutSize(parent);
123 }
124
125 public Dimension minimumLayoutSize(Container parent) {
126 updateColumns(parent);
127 return super.minimumLayoutSize(parent);
128 }
129
130 private void updateColumns(Container parent) {
131 // Use the outer panel width, not the scrolling gridPanel
132 int parentWidth = OverviewTab.this.getWidth();
133
134 int columnWidth = 1;
135
136 for (Component c : parent.getComponents()) {
137 columnWidth = Math.max(columnWidth, c.getPreferredSize().width);
138 }
139
140 int n = parent.getComponentCount();
141 int maxCols = Math.min(n, parentWidth / columnWidth);
142
143 for (int columns = maxCols; columns >= 1; columns--) {
144 if (columns == 1) {
145 setColumns(maxCols);
146 } else if ((n % columns) == 0) {
147 setColumns(columns);
148 break;
149 }
150 }
151 }
152 }
153 }