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 
  30 import javax.swing.*;
  31 
  32 
  33 import static javax.swing.SwingConstants.*;
  34 import static sun.tools.jconsole.JConsole.*;
  35 import static sun.tools.jconsole.Utilities.*;
  36 
  37 
  38 @SuppressWarnings("serial")
  39 abstract class OverviewPanel extends PlotterPanel {
  40     private static final Dimension PREFERRED_PLOTTER_SIZE = new Dimension(300, 200);
  41     private static final Dimension MINIMUM_PLOTTER_SIZE = new Dimension(200, 150);
  42 
  43     // This is the default view range for all the overview plotters
  44     static final int VIEW_RANGE = -1;   // Show all data
  45 
  46     static Color PLOTTER_COLOR = IS_GTK ? new Color(231, 111, 80) : null;
  47 
  48     private JLabel infoLabel;
  49 
  50     public OverviewPanel(String title) {
  51         this(title, null, null, null);
  52     }
  53 
  54     public OverviewPanel(String title, String plotterKey,
  55                          String plotterName, Plotter.Unit plotterUnit) {
  56         super(title);
  57         setLayout(new BorderLayout(0, 0));
  58 
  59         if (plotterKey != null && plotterName != null) {
  60             Plotter plotter = new Plotter();
  61             plotter.setPreferredSize(PREFERRED_PLOTTER_SIZE);
  62             plotter.setMinimumSize(MINIMUM_PLOTTER_SIZE);
  63             plotter.setViewRange(VIEW_RANGE);
  64             if (plotterUnit != null) {
  65                 plotter.setUnit(plotterUnit);
  66             }
  67             plotter.createSequence(plotterKey, plotterName, PLOTTER_COLOR, true);
  68             setAccessibleName(plotter,
  69                               Resources.format(Messages.OVERVIEW_PANEL_PLOTTER_ACCESSIBLE_NAME,
  70                                       title));
  71             setPlotter(plotter);
  72         }
  73     }
  74 
  75 
  76     public JLabel getInfoLabel() {
  77         if (infoLabel == null) {
  78             infoLabel = new JLabel("", CENTER) {
  79                 @Override
  80                 public void setText(String text) {
  81                     if (text.startsWith("<html>")) {
  82                         // Replace spaces with nbsp, except the
  83                         // last one of two or more (to allow wrapping)
  84                         StringBuilder buf = new StringBuilder();
  85                         char[] chars = text.toCharArray();
  86                         int n = chars.length;
  87                         for (int i = 0; i < n; i++) {
  88                             if (chars[i] == ' '
  89                                 && ((i < n-1 && chars[i+1] == ' ')
  90                                     || ((i == 0 || chars[i-1] != ' ')
  91                                         && (i == n-1 || chars[i+1] != ' ')))) {
  92                                 buf.append("&nbsp;");
  93                             } else {
  94                                 buf.append(chars[i]);
  95                             }
  96                         }
  97                         text = buf.toString();
  98                     }
  99                     super.setText(text);
 100                 }
 101             };
 102 
 103             if (IS_GTK) {
 104                 JPanel southPanel = new JPanel(new BorderLayout());
 105                 JSeparator separator = new JSeparator(JSeparator.HORIZONTAL);
 106                 southPanel.add(separator, BorderLayout.NORTH);
 107                 southPanel.add(infoLabel, BorderLayout.SOUTH);
 108                 add(southPanel, BorderLayout.SOUTH);
 109             } else {
 110                 add(infoLabel, BorderLayout.SOUTH);
 111             }
 112         }
 113         return infoLabel;
 114     }
 115 }