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src/java.desktop/share/classes/java/awt/GridLayout.java

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   1 /*
   2  * Copyright (c) 1995, 2017, 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


  38  * import java.awt.*;
  39  * import java.applet.Applet;
  40  * public class ButtonGrid extends Applet {
  41  *     public void init() {
  42  *         setLayout(new GridLayout(3,2));
  43  *         add(new Button("1"));
  44  *         add(new Button("2"));
  45  *         add(new Button("3"));
  46  *         add(new Button("4"));
  47  *         add(new Button("5"));
  48  *         add(new Button("6"));
  49  *     }
  50  * }
  51  * </pre></blockquote><hr>
  52  * <p>
  53  * If the container's {@code ComponentOrientation} property is horizontal
  54  * and left-to-right, the above example produces the output shown in Figure 1.
  55  * If the container's {@code ComponentOrientation} property is horizontal
  56  * and right-to-left, the example produces the output shown in Figure 2.
  57  *
  58  * <table style="float:center;width:600">
  59  * <caption style="display:none">Figures</caption>
  60  * <tr style="text-align:center">
  61  * <td><img SRC="doc-files/GridLayout-1.gif"
  62  *      alt="Shows 6 buttons in rows of 2. Row 1 shows buttons 1 then 2.
  63  * Row 2 shows buttons 3 then 4. Row 3 shows buttons 5 then 6.">
  64  * </td>
  65  *
  66  * <td style="text-align:center"><img SRC="doc-files/GridLayout-2.gif"

  67  *              alt="Shows 6 buttons in rows of 2. Row 1 shows buttons 2 then 1.
  68  * Row 2 shows buttons 4 then 3. Row 3 shows buttons 6 then 5.">
  69  * </td>
  70  * </tr>
  71  *
  72  * <tr style="text-align:center">
  73  * <td>Figure 1: Horizontal, Left-to-Right</td>
  74  *
  75  * <td>Figure 2: Horizontal, Right-to-Left</td>
  76  * </tr>
  77  * </table>
  78  * <p>
  79  * When both the number of rows and the number of columns have
  80  * been set to non-zero values, either by a constructor or
  81  * by the {@code setRows} and {@code setColumns} methods, the number of
  82  * columns specified is ignored.  Instead, the number of
  83  * columns is determined from the specified number of rows
  84  * and the total number of components in the layout. So, for
  85  * example, if three rows and two columns have been specified
  86  * and nine components are added to the layout, they will
  87  * be displayed as three rows of three columns.  Specifying
  88  * the number of columns affects the layout only when the
  89  * number of rows is set to zero.
  90  *
  91  * @author  Arthur van Hoff
  92  * @since   1.0
  93  */
  94 public class GridLayout implements LayoutManager, java.io.Serializable {
  95     /*
  96      * serialVersionUID
  97      */


   1 /*
   2  * Copyright (c) 1995, 2019, 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


  38  * import java.awt.*;
  39  * import java.applet.Applet;
  40  * public class ButtonGrid extends Applet {
  41  *     public void init() {
  42  *         setLayout(new GridLayout(3,2));
  43  *         add(new Button("1"));
  44  *         add(new Button("2"));
  45  *         add(new Button("3"));
  46  *         add(new Button("4"));
  47  *         add(new Button("5"));
  48  *         add(new Button("6"));
  49  *     }
  50  * }
  51  * </pre></blockquote><hr>
  52  * <p>
  53  * If the container's {@code ComponentOrientation} property is horizontal
  54  * and left-to-right, the above example produces the output shown in Figure 1.
  55  * If the container's {@code ComponentOrientation} property is horizontal
  56  * and right-to-left, the example produces the output shown in Figure 2.
  57  *
  58  * <div style="margin:0 auto;width:600px;text-align:center;font-weight:bold">
  59  *   <div style="float:left">
  60  *     <p><img SRC="doc-files/GridLayout-1.gif"

  61  *        alt="Shows 6 buttons in rows of 2. Row 1 shows buttons 1 then 2.
  62  *        Row 2 shows buttons 3 then 4. Row 3 shows buttons 5 then 6.">
  63  *     <p>Figure 1: Horizontal, Left-to-Right
  64  *   </div>
  65  *   <div style="float:right">
  66  *     <p><img SRC="doc-files/GridLayout-2.gif"
  67  *        alt="Shows 6 buttons in rows of 2. Row 1 shows buttons 2 then 1.
  68  *        Row 2 shows buttons 4 then 3. Row 3 shows buttons 6 then 5.">
  69  *     <p>Figure 2: Horizontal, Right-to-Left
  70  *   </div>
  71  *   <br style="clear:both;">
  72  * </div>





  73  * <p>
  74  * When both the number of rows and the number of columns have
  75  * been set to non-zero values, either by a constructor or
  76  * by the {@code setRows} and {@code setColumns} methods, the number of
  77  * columns specified is ignored.  Instead, the number of
  78  * columns is determined from the specified number of rows
  79  * and the total number of components in the layout. So, for
  80  * example, if three rows and two columns have been specified
  81  * and nine components are added to the layout, they will
  82  * be displayed as three rows of three columns.  Specifying
  83  * the number of columns affects the layout only when the
  84  * number of rows is set to zero.
  85  *
  86  * @author  Arthur van Hoff
  87  * @since   1.0
  88  */
  89 public class GridLayout implements LayoutManager, java.io.Serializable {
  90     /*
  91      * serialVersionUID
  92      */


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