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Diffstat (limited to 'libjava/classpath/javax/swing/plaf/basic/BasicComboBoxRenderer.java')
-rw-r--r-- | libjava/classpath/javax/swing/plaf/basic/BasicComboBoxRenderer.java | 142 |
1 files changed, 142 insertions, 0 deletions
diff --git a/libjava/classpath/javax/swing/plaf/basic/BasicComboBoxRenderer.java b/libjava/classpath/javax/swing/plaf/basic/BasicComboBoxRenderer.java new file mode 100644 index 00000000000..e4fbb8352a9 --- /dev/null +++ b/libjava/classpath/javax/swing/plaf/basic/BasicComboBoxRenderer.java @@ -0,0 +1,142 @@ +/* BasicComboBoxRenderer.java -- + Copyright (C) 2004 Free Software Foundation, Inc. + +This file is part of GNU Classpath. + +GNU Classpath is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2, or (at your option) +any later version. + +GNU Classpath is distributed in the hope that it will be useful, but +WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +General Public License for more details. + +You should have received a copy of the GNU General Public License +along with GNU Classpath; see the file COPYING. If not, write to the +Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA +02110-1301 USA. + +Linking this library statically or dynamically with other modules is +making a combined work based on this library. Thus, the terms and +conditions of the GNU General Public License cover the whole +combination. + +As a special exception, the copyright holders of this library give you +permission to link this library with independent modules to produce an +executable, regardless of the license terms of these independent +modules, and to copy and distribute the resulting executable under +terms of your choice, provided that you also meet, for each linked +independent module, the terms and conditions of the license of that +module. An independent module is a module which is not derived from +or based on this library. If you modify this library, you may extend +this exception to your version of the library, but you are not +obligated to do so. If you do not wish to do so, delete this +exception statement from your version. */ + + +package javax.swing.plaf.basic; + +import java.awt.Component; +import java.awt.Dimension; +import java.io.Serializable; + +import javax.swing.JLabel; +import javax.swing.JList; +import javax.swing.ListCellRenderer; +import javax.swing.SwingConstants; +import javax.swing.UIDefaults; +import javax.swing.UIManager; +import javax.swing.border.Border; +import javax.swing.border.EmptyBorder; + +/** + * This class is renderer for the combo box. + * + * @author Olga Rodimina + */ +public class BasicComboBoxRenderer extends JLabel implements ListCellRenderer, + Serializable +{ + /** + * This border is used whenever renderer doesn't have a focus. + */ + protected static Border noFocusBorder = new EmptyBorder(0, 0, 0, 0); + + /** + * Creates a new BasicComboBoxRenderer object. + */ + public BasicComboBoxRenderer() + { + setHorizontalAlignment(SwingConstants.LEFT); + } + + /** + * Returns preferredSize of the renderer + * + * @return preferredSize of the renderer + */ + public Dimension getPreferredSize() + { + return super.getPreferredSize(); + } + + /** + * getListCellRendererComponent + * + * @param list List of items for which to the background and foreground + * colors + * @param value object that should be rendered in the cell + * @param index index of the cell in the list of items. + * @param isSelected draw cell highlighted if isSelected is true + * @param cellHasFocus draw focus rectangle around cell if the cell has + * focus + * + * @return Component that will be used to draw the desired cell. + */ + public Component getListCellRendererComponent(JList list, Object value, + int index, boolean isSelected, + boolean cellHasFocus) + { + String s = value.toString(); + setText(s); + setOpaque(true); + + UIDefaults defaults = UIManager.getLookAndFeelDefaults(); + + if (isSelected) + { + setBackground(list.getSelectionBackground()); + setForeground(list.getSelectionForeground()); + } + else + { + setBackground(list.getBackground()); + setForeground(list.getForeground()); + } + + setEnabled(list.isEnabled()); + setFont(list.getFont()); + + // Use focusCellHighlightBorder when renderer has focus and + // noFocusBorder otherwise + if (cellHasFocus) + setBorder(UIManager.getBorder("List.focusCellHighlightBorder")); + else + setBorder(noFocusBorder); + + return this; + } + + public static class UIResource extends BasicComboBoxRenderer + implements javax.swing.plaf.UIResource + { + /** + * Creates a new UIResource object. + */ + public UIResource() + { + } + } +} |