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Diffstat (limited to 'libjava/classpath/javax/swing/DefaultListCellRenderer.java')
| -rw-r--r-- | libjava/classpath/javax/swing/DefaultListCellRenderer.java | 199 |
1 files changed, 199 insertions, 0 deletions
diff --git a/libjava/classpath/javax/swing/DefaultListCellRenderer.java b/libjava/classpath/javax/swing/DefaultListCellRenderer.java new file mode 100644 index 000000000..598627fac --- /dev/null +++ b/libjava/classpath/javax/swing/DefaultListCellRenderer.java @@ -0,0 +1,199 @@ +/* DefaultListCellRenderer.java -- + Copyright (C) 2002, 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; + +import java.awt.Component; +import java.awt.Rectangle; +import java.io.Serializable; + +import javax.swing.border.Border; +import javax.swing.border.EmptyBorder; + +/** + * The default implementation {@link ListCellRenderer}. It provides a standard + * renderer for data objects of all types via {@link Object#toString()}. + * + * @author Andrew Selkirk + */ +public class DefaultListCellRenderer extends JLabel + implements ListCellRenderer, Serializable +{ + private static final long serialVersionUID = 7708947179685189462L; + + /** + * Subclasses <code>DefaultListCellRenderers</code> and implements + * {@link javax.swing.plaf.UIResource}. This is used by + * {@link javax.swing.plaf.ListUI} subclasses to provide a default for + * the <code>List.cellRenderer</code> property. If you want to override + * this property, use <code>DefaultListCellRenderer</code> or a subclass. + */ + public static class UIResource extends DefaultListCellRenderer + implements javax.swing.plaf.UIResource + { + public UIResource() + { + super(); + } + } + + /** + * This border is used whenever renderer doesn't have a focus. + */ + protected static Border noFocusBorder = new EmptyBorder(1, 1, 1, 1); + + /** + * getListCellRendererComponent + * + * @param list JList list for the 'value' + * @param value object that should be rendered in the cell + * @param index index of the cell + * @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 painted to the desired cell. + */ + public Component getListCellRendererComponent(JList list, Object value, + int index, boolean isSelected, + boolean cellHasFocus) + { + String s = value != null ? value.toString() : ""; + setText(s); + setOpaque(true); + setHorizontalAlignment(LEFT); + + 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 void validate() + { + // Overridden to do nothing. + } + + public void revalidate() + { + // Overridden to do nothing. + } + + public void repaint(long tm, int x, int y, int w, int h) + { + // Overridden to do nothing. + } + + public void repaint(Rectangle rect) + { + // Overridden to do nothing. + } + + protected void firePropertyChange(String propertyName, Object oldValue, + Object newValue) + { + // Overridden to do nothing. + } + + public void firePropertyChange(String propertyName, byte oldValue, + byte newValue) + { + // Overridden to do nothing. + } + + public void firePropertyChange(String propertyName, char oldValue, + char newValue) + { + // Overridden to do nothing. + } + + public void firePropertyChange(String propertyName, short oldValue, + short newValue) + { + // Overridden to do nothing. + } + + public void firePropertyChange(String propertyName, int oldValue, + int newValue) + { + // Overridden to do nothing. + } + + public void firePropertyChange(String propertyName, long oldValue, + long newValue) + { + // Overridden to do nothing. + } + + public void firePropertyChange(String propertyName, float oldValue, + float newValue) + { + // Overridden to do nothing. + } + + public void firePropertyChange(String propertyName, double oldValue, + double newValue) + { + // Overridden to do nothing. + } + + public void firePropertyChange(String propertyName, boolean oldValue, + boolean newValue) + { + // Overridden to do nothing. + } +} |