1 /*
   2  * Copyright (c) 1997, 2013, 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

 117      * may need to be recalculated when the preferences
 118      * have not changed.  The layout can be marked as
 119      * invalid by calling this method.  The layout will
 120      * be updated the next time the <code>setSize</code> method
 121      * is called on this view (typically in paint).
 122      *
 123      * @param axis either <code>View.X_AXIS</code> or <code>View.Y_AXIS</code>
 124      *
 125      * @since 1.3
 126      */
 127     public void layoutChanged(int axis) {
 128         if (axis == majorAxis) {
 129             majorAllocValid = false;
 130         } else {
 131             minorAllocValid = false;
 132         }
 133     }
 134 
 135     /**
 136      * Determines if the layout is valid along the given axis.

 137      *
 138      * @param axis either <code>View.X_AXIS</code> or <code>View.Y_AXIS</code>
 139      *
 140      * @since 1.4
 141      */
 142     protected boolean isLayoutValid(int axis) {
 143         if (axis == majorAxis) {
 144             return majorAllocValid;
 145         } else {
 146             return minorAllocValid;
 147         }
 148     }
 149 
 150     /**
 151      * Paints a child.  By default
 152      * that is all it does, but a subclass can use this to paint
 153      * things relative to the child.
 154      *
 155      * @param g the graphics context
 156      * @param alloc the allocated region to paint into

   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

 117      * may need to be recalculated when the preferences
 118      * have not changed.  The layout can be marked as
 119      * invalid by calling this method.  The layout will
 120      * be updated the next time the <code>setSize</code> method
 121      * is called on this view (typically in paint).
 122      *
 123      * @param axis either <code>View.X_AXIS</code> or <code>View.Y_AXIS</code>
 124      *
 125      * @since 1.3
 126      */
 127     public void layoutChanged(int axis) {
 128         if (axis == majorAxis) {
 129             majorAllocValid = false;
 130         } else {
 131             minorAllocValid = false;
 132         }
 133     }
 134 
 135     /**
 136      * Determines if the layout is valid along the given axis.
 137      * @return if the layout is valid along the given axis
 138      *
 139      * @param axis either <code>View.X_AXIS</code> or <code>View.Y_AXIS</code>
 140      *
 141      * @since 1.4
 142      */
 143     protected boolean isLayoutValid(int axis) {
 144         if (axis == majorAxis) {
 145             return majorAllocValid;
 146         } else {
 147             return minorAllocValid;
 148         }
 149     }
 150 
 151     /**
 152      * Paints a child.  By default
 153      * that is all it does, but a subclass can use this to paint
 154      * things relative to the child.
 155      *
 156      * @param g the graphics context
 157      * @param alloc the allocated region to paint into