/* * Copyright (c) 2006, Oracle and/or its affiliates. All rights reserved. * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. * * This code is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 only, as * published by the Free Software Foundation.  Oracle designates this * particular file as subject to the "Classpath" exception as provided * by Oracle in the LICENSE file that accompanied this code. * * This code is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License * version 2 for more details (a copy is included in the LICENSE file that * accompanied this code). * * You should have received a copy of the GNU General Public License version * 2 along with this work; if not, write to the Free Software Foundation, * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. * * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA * or visit www.oracle.com if you need additional information or have any * questions. */ package sun.tools.jconsole; import java.awt.*;import java.lang.reflect.InvocationTargetException;import java.util.ArrayList; import javax.swing.*;import javax.swing.border.*; import static sun.tools.jconsole.JConsole.*;import static sun.tools.jconsole.Resources.*;  @SuppressWarnings("serial")class OverviewTab extends Tab {    JPanel gridPanel;    TimeComboBox timeComboBox;     public static String getTabName() {        return getText("Overview");    }     public OverviewTab(VMPanel vmPanel) {        super(vmPanel, getTabName());         setBorder(new EmptyBorder(4, 4, 3, 4));        setLayout(new BorderLayout());         JPanel topPanel     = new JPanel(new BorderLayout());        add(topPanel, BorderLayout.NORTH);         JPanel controlPanel = new JPanel(new FlowLayout(FlowLayout.CENTER, 20, 5));        topPanel.add(controlPanel, BorderLayout.CENTER);         timeComboBox = new TimeComboBox();        LabeledComponent lc = new LabeledComponent(Resources.getText("Time Range:"),                                                   getMnemonicInt("Time Range:"),                                                   timeComboBox);        controlPanel.add(lc);         gridPanel = new JPanel(new AutoGridLayout(10, 6));        gridPanel.setBorder(null);        JScrollPane sp = new JScrollPane(gridPanel);        sp.setBorder(null);        sp.setViewportBorder(null);        add(sp, BorderLayout.CENTER);         // Note that panels are added on first update    }      public SwingWorker<?, ?> newSwingWorker() {        return new SwingWorker<Object, Object>() {            public Object doInBackground() {                return null;            }             protected void done() {                if (gridPanel.getComponentCount() == 0) {                    final ArrayList<Plotter> plotters = new ArrayList<Plotter>();                    for (Tab tab : vmPanel.getTabs()) {                        OverviewPanel[] ops = tab.getOverviewPanels();                        if (ops != null) {                            for (OverviewPanel op : ops) {                                gridPanel.add(op);                                Plotter plotter = op.getPlotter();                                if (plotter != null) {                                    plotters.add(plotter);                                    timeComboBox.addPlotter(plotter);                                }                            }                        }                    }                    if (plotters.size() > 0) {                        workerAdd(new Runnable() {                            public void run() {                                ProxyClient proxyClient = vmPanel.getProxyClient();                                for (Plotter plotter : plotters) {                                    proxyClient.addWeakPropertyChangeListener(plotter);                                }                            }                        });                    }                    if (getParent() instanceof JTabbedPane) {                        Utilities.updateTransparency((JTabbedPane)getParent());                    }                }            }        };    }       private class AutoGridLayout extends GridLayout {        public AutoGridLayout(int hGap, int vGap) {            super(0, 1, hGap, vGap);        }         public Dimension preferredLayoutSize(Container parent) {            return minimumLayoutSize(parent);        }         public Dimension minimumLayoutSize(Container parent) {            updateColumns(parent);            return super.minimumLayoutSize(parent);        }         private void updateColumns(Container parent) {            // Use the outer panel width, not the scrolling gridPanel            int parentWidth = OverviewTab.this.getWidth();             int columnWidth = 1;             for (Component c : parent.getComponents()) {                columnWidth = Math.max(columnWidth, c.getPreferredSize().width);            }             int n = parent.getComponentCount();            int maxCols = Math.min(n, parentWidth / columnWidth);             for (int columns = maxCols; columns >= 1; columns--) {                if (columns == 1) {                    setColumns(maxCols);                } else if ((n % columns) == 0) {                    setColumns(columns);                    break;                }            }        }    }}