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annotate visualizer/View/src/com/sun/hotspot/igv/view/scene/CustomizablePanWidgetAction.java @ 9010:08a16c26907f

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MX_TESTFILE environment variable can be used to specify (and preserve) the test list file used by 'mx unittest'. This is useful when wanting to run the command under gdb.
author Doug Simon <doug.simon@oracle.com>
date Thu, 11 Apr 2013 21:40:52 +0200
parents 015fb895586b
children
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1 /*
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2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
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3 *
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4 * Copyright 1997-2010 Oracle and/or its affiliates. All rights reserved.
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5 *
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6 * Oracle and Java are registered trademarks of Oracle and/or its affiliates.
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7 * Other names may be trademarks of their respective owners.
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8 *
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9 * The contents of this file are subject to the terms of either the GNU
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10 * General Public License Version 2 only ("GPL") or the Common
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11 * Development and Distribution License("CDDL") (collectively, the
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12 * "License"). You may not use this file except in compliance with the
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13 * License. You can obtain a copy of the License at
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14 * http://www.netbeans.org/cddl-gplv2.html
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15 * or nbbuild/licenses/CDDL-GPL-2-CP. See the License for the
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16 * specific language governing permissions and limitations under the
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17 * License. When distributing the software, include this License Header
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18 * Notice in each file and include the License file at
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19 * nbbuild/licenses/CDDL-GPL-2-CP. Oracle designates this
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20 * particular file as subject to the "Classpath" exception as provided
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21 * by Oracle in the GPL Version 2 section of the License file that
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22 * accompanied this code. If applicable, add the following below the
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23 * License Header, with the fields enclosed by brackets [] replaced by
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24 * your own identifying information:
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25 * "Portions Copyrighted [year] [name of copyright owner]"
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26 *
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27 * Contributor(s):
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28 *
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29 * The Original Software is NetBeans. The Initial Developer of the Original
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30 * Software is Sun Microsystems, Inc. Portions Copyright 1997-2007 Sun
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31 * Microsystems, Inc. All Rights Reserved.
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32 *
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33 * If you wish your version of this file to be governed by only the CDDL
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34 * or only the GPL Version 2, indicate your decision by adding
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35 * "[Contributor] elects to include this software in this distribution
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36 * under the [CDDL or GPL Version 2] license." If you do not indicate a
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37 * single choice of license, a recipient has the option to distribute
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38 * your version of this file under either the CDDL, the GPL Version 2 or
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39 * to extend the choice of license to its licensees as provided above.
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40 * However, if you add GPL Version 2 code and therefore, elected the GPL
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41 * Version 2 license, then the option applies only if the new code is
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42 * made subject to such option by the copyright holder.
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43 */
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44 package com.sun.hotspot.igv.view.scene;
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45
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46 import java.awt.Container;
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47 import java.awt.Point;
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48 import java.awt.Rectangle;
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49 import javax.swing.JComponent;
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50 import javax.swing.JScrollPane;
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51 import javax.swing.SwingUtilities;
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52 import org.netbeans.api.visual.action.WidgetAction;
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53 import org.netbeans.api.visual.action.WidgetAction.State;
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54 import org.netbeans.api.visual.action.WidgetAction.WidgetMouseEvent;
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55 import org.netbeans.api.visual.widget.Scene;
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56 import org.netbeans.api.visual.widget.Widget;
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57
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58 /**
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59 * @author David Kaspar
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60 * @author Peter Hofer
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61 */
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62 public class CustomizablePanWidgetAction extends WidgetAction.LockedAdapter {
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63 private boolean enabled = true;
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64
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65 private Scene scene;
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66 private JScrollPane scrollPane;
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67 private Point lastLocation;
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68
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69 private final int modifiersExMask;
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70 private final int modifiersEx;
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71
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72 public CustomizablePanWidgetAction(int modifiersExMask, int modifiersEx) {
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73 this.modifiersExMask = modifiersExMask;
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74 this.modifiersEx = modifiersEx;
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75 }
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76
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77 @Override
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78 protected boolean isLocked() {
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79 return scrollPane != null;
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80 }
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81
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82 public void setEnabled(boolean enabled) {
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83 if (this.enabled != enabled) {
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84 if (isLocked())
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85 throw new IllegalStateException();
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86
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87 this.enabled = enabled;
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88 }
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89 }
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90
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91 @Override
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92 public State mousePressed (Widget widget, WidgetMouseEvent event) {
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93 if (isLocked ())
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94 return State.createLocked (widget, this);
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95 if (enabled && (event.getModifiersEx() & modifiersExMask) == modifiersEx) {
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96 scene = widget.getScene ();
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97 scrollPane = findScrollPane (scene.getView ());
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98 if (scrollPane != null) {
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99 lastLocation = scene.convertSceneToView (widget.convertLocalToScene (event.getPoint ()));
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100 SwingUtilities.convertPointToScreen (lastLocation, scene.getView ());
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101 return State.createLocked (widget, this);
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102 }
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103 }
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104 return State.REJECTED;
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105 }
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106
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107 private JScrollPane findScrollPane (JComponent component) {
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108 for (;;) {
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109 if (component == null)
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110 return null;
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111 if (component instanceof JScrollPane)
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112 return ((JScrollPane) component);
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113 Container parent = component.getParent ();
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114 if (! (parent instanceof JComponent))
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115 return null;
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116 component = (JComponent) parent;
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117 }
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118 }
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119
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120 @Override
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121 public State mouseReleased (Widget widget, WidgetMouseEvent event) {
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122 boolean state = pan (widget, event.getPoint ());
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123 if (state)
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124 scrollPane = null;
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125 return state ? State.createLocked (widget, this) : State.REJECTED;
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126 }
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127
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128 @Override
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129 public State mouseDragged (Widget widget, WidgetMouseEvent event) {
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130 return pan (widget, event.getPoint ()) ? State.createLocked (widget, this) : State.REJECTED;
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131 }
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132
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133 private boolean pan (Widget widget, Point newLocation) {
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134 if (scrollPane == null || scene != widget.getScene ())
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135 return false;
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136 newLocation = scene.convertSceneToView (widget.convertLocalToScene (newLocation));
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137 SwingUtilities.convertPointToScreen (newLocation, scene.getView ());
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138 JComponent view = scene.getView ();
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139 Rectangle rectangle = view.getVisibleRect ();
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140 rectangle.x += lastLocation.x - newLocation.x;
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Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
141 rectangle.y += lastLocation.y - newLocation.y;
015fb895586b Moved visualizer to new directory.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
142 view.scrollRectToVisible (rectangle);
015fb895586b Moved visualizer to new directory.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
143 lastLocation = newLocation;
015fb895586b Moved visualizer to new directory.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
144 return true;
015fb895586b Moved visualizer to new directory.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
145 }
015fb895586b Moved visualizer to new directory.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
diff changeset
146 }