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


  62     /**
  63      * Constructs a new instance of {@code BasicComboBoxRenderer}.
  64      */
  65     public BasicComboBoxRenderer() {
  66         super();
  67         setOpaque(true);
  68         setBorder(getNoFocusBorder());
  69     }
  70 
  71     private static Border getNoFocusBorder() {
  72         if (System.getSecurityManager() != null) {
  73             return SAFE_NO_FOCUS_BORDER;
  74         } else {
  75             return noFocusBorder;
  76         }
  77     }
  78 
  79     public Dimension getPreferredSize() {
  80         Dimension size;
  81 
  82         if ((this.getText() == null) || (this.getText().equals( "" ))) {
  83             setText( " " );
  84             size = super.getPreferredSize();
  85             setText( "" );
  86         }
  87         else {
  88             size = super.getPreferredSize();
  89         }
  90 
  91         return size;
  92     }
  93 
  94     @Override
  95     public Component getListCellRendererComponent(JList<?> list,
  96                                                  Object value,
  97                                                  int index,
  98                                                  boolean isSelected,
  99                                                  boolean cellHasFocus)
 100     {
 101 
 102         /**if (isSelected) {


   1 /*
   2  * Copyright (c) 1997, 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


  62     /**
  63      * Constructs a new instance of {@code BasicComboBoxRenderer}.
  64      */
  65     public BasicComboBoxRenderer() {
  66         super();
  67         setOpaque(true);
  68         setBorder(getNoFocusBorder());
  69     }
  70 
  71     private static Border getNoFocusBorder() {
  72         if (System.getSecurityManager() != null) {
  73             return SAFE_NO_FOCUS_BORDER;
  74         } else {
  75             return noFocusBorder;
  76         }
  77     }
  78 
  79     public Dimension getPreferredSize() {
  80         Dimension size;
  81 
  82         if (this.getText() == null || this.getText().isEmpty()) {
  83             setText( " " );
  84             size = super.getPreferredSize();
  85             setText( "" );
  86         }
  87         else {
  88             size = super.getPreferredSize();
  89         }
  90 
  91         return size;
  92     }
  93 
  94     @Override
  95     public Component getListCellRendererComponent(JList<?> list,
  96                                                  Object value,
  97                                                  int index,
  98                                                  boolean isSelected,
  99                                                  boolean cellHasFocus)
 100     {
 101 
 102         /**if (isSelected) {


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