src/java.desktop/share/classes/javax/swing/plaf/basic/BasicSplitPaneUI.java

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   1 /*
   2  * Copyright (c) 1997, 2014, 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 
  27 package javax.swing.plaf.basic;
  28 
  29 


  30 import sun.swing.DefaultLookup;
  31 import sun.swing.UIAction;
  32 import javax.swing.*;
  33 import javax.swing.border.Border;
  34 import java.awt.*;
  35 import java.awt.event.*;
  36 import java.awt.peer.ComponentPeer;
  37 import java.awt.peer.LightweightPeer;
  38 import java.beans.*;
  39 import java.util.*;
  40 import javax.swing.plaf.SplitPaneUI;
  41 import javax.swing.plaf.ComponentUI;
  42 import javax.swing.plaf.UIResource;
  43 import sun.swing.SwingUtilities2;
  44 
  45 
  46 /**
  47  * A Basic L&F implementation of the SplitPaneUI.
  48  *
  49  * @author Scott Violet


1174 
1175     /**
1176      * Set the value to indicate if one of the splitpane sides is expanded.
1177      */
1178     void setKeepHidden(boolean keepHidden) {
1179         this.keepHidden = keepHidden;
1180     }
1181 
1182     /**
1183      * The value returned indicates if one of the splitpane sides is expanded.
1184      * @return true if one of the splitpane sides is expanded, false otherwise.
1185      */
1186     private boolean getKeepHidden() {
1187         return keepHidden;
1188     }
1189 
1190     /**
1191      * Should be messaged before the dragging session starts, resets
1192      * lastDragLocation and dividerSize.
1193      */
1194     @SuppressWarnings("deprecation")
1195     protected void startDragging() {
1196         Component       leftC = splitPane.getLeftComponent();
1197         Component       rightC = splitPane.getRightComponent();
1198         ComponentPeer   cPeer;
1199 
1200         beginDragDividerLocation = getDividerLocation(splitPane);
1201         draggingHW = false;
1202         if(leftC != null && (cPeer = leftC.getPeer()) != null &&

1203            !(cPeer instanceof LightweightPeer)) {
1204             draggingHW = true;
1205         } else if(rightC != null && (cPeer = rightC.getPeer()) != null
1206                   && !(cPeer instanceof LightweightPeer)) {
1207             draggingHW = true;
1208         }
1209         if(orientation == JSplitPane.HORIZONTAL_SPLIT) {
1210             setLastDragLocation(divider.getBounds().x);
1211             dividerSize = divider.getSize().width;
1212             if(!isContinuousLayout() && draggingHW) {
1213                 nonContinuousLayoutDivider.setBounds
1214                         (getLastDragLocation(), 0, dividerSize,
1215                          splitPane.getHeight());
1216                       addHeavyweightDivider();
1217             }
1218         } else {
1219             setLastDragLocation(divider.getBounds().y);
1220             dividerSize = divider.getSize().height;
1221             if(!isContinuousLayout() && draggingHW) {
1222                 nonContinuousLayoutDivider.setBounds
1223                         (0, getLastDragLocation(), splitPane.getWidth(),
1224                          dividerSize);
1225                       addHeavyweightDivider();


   1 /*
   2  * Copyright (c) 1997, 2015, 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 
  27 package javax.swing.plaf.basic;
  28 
  29 
  30 import sun.awt.AWTAccessor;
  31 import sun.awt.AWTAccessor.ComponentAccessor;
  32 import sun.swing.DefaultLookup;
  33 import sun.swing.UIAction;
  34 import javax.swing.*;
  35 import javax.swing.border.Border;
  36 import java.awt.*;
  37 import java.awt.event.*;
  38 import java.awt.peer.ComponentPeer;
  39 import java.awt.peer.LightweightPeer;
  40 import java.beans.*;
  41 import java.util.*;
  42 import javax.swing.plaf.SplitPaneUI;
  43 import javax.swing.plaf.ComponentUI;
  44 import javax.swing.plaf.UIResource;
  45 import sun.swing.SwingUtilities2;
  46 
  47 
  48 /**
  49  * A Basic L&F implementation of the SplitPaneUI.
  50  *
  51  * @author Scott Violet


1176 
1177     /**
1178      * Set the value to indicate if one of the splitpane sides is expanded.
1179      */
1180     void setKeepHidden(boolean keepHidden) {
1181         this.keepHidden = keepHidden;
1182     }
1183 
1184     /**
1185      * The value returned indicates if one of the splitpane sides is expanded.
1186      * @return true if one of the splitpane sides is expanded, false otherwise.
1187      */
1188     private boolean getKeepHidden() {
1189         return keepHidden;
1190     }
1191 
1192     /**
1193      * Should be messaged before the dragging session starts, resets
1194      * lastDragLocation and dividerSize.
1195      */

1196     protected void startDragging() {
1197         Component       leftC = splitPane.getLeftComponent();
1198         Component       rightC = splitPane.getRightComponent();
1199         ComponentPeer   cPeer;
1200 
1201         beginDragDividerLocation = getDividerLocation(splitPane);
1202         draggingHW = false;
1203         final ComponentAccessor acc = AWTAccessor.getComponentAccessor();
1204         if(leftC != null && (cPeer = acc.getPeer(leftC)) != null &&
1205            !(cPeer instanceof LightweightPeer)) {
1206             draggingHW = true;
1207         } else if(rightC != null && (cPeer = acc.getPeer(rightC)) != null
1208                   && !(cPeer instanceof LightweightPeer)) {
1209             draggingHW = true;
1210         }
1211         if(orientation == JSplitPane.HORIZONTAL_SPLIT) {
1212             setLastDragLocation(divider.getBounds().x);
1213             dividerSize = divider.getSize().width;
1214             if(!isContinuousLayout() && draggingHW) {
1215                 nonContinuousLayoutDivider.setBounds
1216                         (getLastDragLocation(), 0, dividerSize,
1217                          splitPane.getHeight());
1218                       addHeavyweightDivider();
1219             }
1220         } else {
1221             setLastDragLocation(divider.getBounds().y);
1222             dividerSize = divider.getSize().height;
1223             if(!isContinuousLayout() && draggingHW) {
1224                 nonContinuousLayoutDivider.setBounds
1225                         (0, getLastDragLocation(), splitPane.getWidth(),
1226                          dividerSize);
1227                       addHeavyweightDivider();