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1 /* |
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2 * CDDL HEADER START |
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3 * |
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4 * The contents of this file are subject to the terms of the |
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5 * Common Development and Distribution License (the "License"). |
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6 * You may not use this file except in compliance with the License. |
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7 * |
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8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE |
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9 * or http://www.opensolaris.org/os/licensing. |
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10 * See the License for the specific language governing permissions |
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11 * and limitations under the License. |
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12 * |
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13 * When distributing Covered Code, include this CDDL HEADER in each |
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14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. |
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15 * If applicable, add the following below this CDDL HEADER, with the |
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16 * fields enclosed by brackets "[]" replaced with your own identifying |
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17 * information: Portions Copyright [yyyy] [name of copyright owner] |
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18 * |
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19 * CDDL HEADER END |
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20 */ |
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21 |
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22 /* |
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23 * Copyright (c) 2010, 2012, Oracle and/or its affiliates. All rights reserved. |
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24 */ |
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25 |
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26 package com.oracle.solaris.vp.util.swing.glass; |
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27 |
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28 import java.awt.Component; |
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29 import javax.swing.JPanel; |
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30 import com.oracle.solaris.vp.util.swing.ShowingListener; |
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31 |
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32 @SuppressWarnings({"serial"}) |
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33 public class SimpleGlassPane extends JPanel { |
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34 // |
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35 // Instance data |
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36 // |
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37 |
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38 private ShowingListener showingListener; |
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39 |
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40 // |
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41 // Constructors |
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42 // |
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43 |
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44 public SimpleGlassPane() { |
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45 setOpaque(false); |
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46 |
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47 addHierarchyListener( |
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48 new ShowingListener() { |
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49 @Override |
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50 public void componentHidden() { |
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51 SimpleGlassPane.this.componentHidden(); |
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52 } |
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53 |
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54 @Override |
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55 public void componentShown() { |
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56 SimpleGlassPane.this.componentShown(); |
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57 } |
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58 }); |
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59 } |
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60 |
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61 // |
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62 // Component methods |
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63 // |
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64 |
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65 /** |
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66 * Calls {@link #componentToBeVisible} or {@link #componentToBeInvisible} as |
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67 * appropriate, then forwards to superclass. |
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68 */ |
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69 @Override |
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70 public void setVisible(boolean visible) { |
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71 if (visible != isVisible()) { |
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72 if (visible) { |
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73 componentToBeVisible(); |
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74 } else { |
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75 componentToBeInvisible(); |
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76 } |
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77 super.setVisible(visible); |
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78 } |
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79 } |
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80 |
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81 // |
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82 // SimpleGlassPane methods |
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83 // |
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84 |
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85 /** |
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86 * Called when this {@code SimpleGlassPane}'s {@link #isShowing showing} |
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87 * status changes to {@code false}. |
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88 * </p> |
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89 * This default implementation does nothing. |
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90 */ |
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91 public void componentHidden() { |
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92 } |
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93 |
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94 /** |
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95 * Called when this {@code SimpleGlassPane}'s {@link #isShowing showing} |
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96 * status changes to {@code true}. |
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97 * </p> |
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98 * This default implementation does nothing. |
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99 */ |
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100 public void componentShown() { |
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101 } |
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102 |
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103 /** |
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104 * Called when this {@code SimpleGlassPane}'s {@link #isVisible visibility} |
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105 * is about to be set to {@code true}. |
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106 * </p> |
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107 * This default implementation does nothing. |
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108 */ |
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109 public void componentToBeVisible() { |
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110 } |
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111 |
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112 /** |
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113 * Called when this {@code SimpleGlassPane}'s {@link #isVisible visibility} |
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114 * is about to be set to {@code false}. |
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115 * </p> |
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116 * This default implementation does nothing. |
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117 */ |
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118 public void componentToBeInvisible() { |
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119 } |
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120 |
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121 protected ShowingListener getShowingListener() { |
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122 return showingListener; |
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123 } |
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124 } |