SwingRenderer.java

/*
 * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.  Oracle designates this
 * particular file as subject to the "Classpath" exception as provided
 * by Oracle in the LICENSE file that accompanied this code.
 *
 * This code 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
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores
 * CA 94065 USA or visit www.oracle.com if you need additional information or
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 */

package com.sun.lwuit.resource.util;

import java.awt.Color;
import javax.swing.JComponent;
import javax.swing.JTable;
import javax.swing.table.DefaultTableCellRenderer;

/**
 * Swing renderer that exposes some basic features
 *
 * @author Shai Almog
 */
public class SwingRenderer extends DefaultTableCellRenderer {
        private Color unselectedForeground;
        private Color unselectedBackground;

        public void setForeground(Color c) {
            super.setForeground(c);
            unselectedForeground = c;
        }

        public void setBackground(Color c) {
            super.setBackground(c);
            unselectedBackground = c;
        }

        public void updateComponentSelectedState(JComponent c, boolean isSelected, JTable table, int row, int column, boolean hasFocus) {
            Color fg = null;
            Color bg = null;

            JTable.DropLocation dropLocation = table.getDropLocation();
            if (dropLocation != null
                    && !dropLocation.isInsertRow()
                    && !dropLocation.isInsertColumn()
                    && dropLocation.getRow() == row
                    && dropLocation.getColumn() == column) {

                isSelected = true;
            }

            if (isSelected) {
                c.setForeground(fg == null ? table.getSelectionForeground() : fg);
                c.setBackground(bg == null ? table.getSelectionBackground() : bg);
            } else {
                Color background = unselectedBackground != null
                                        ? unselectedBackground
                                        : table.getBackground();
                c.setForeground(unselectedForeground != null
                                        ? unselectedForeground
                                        : table.getForeground());
                c.setBackground(background);
            }

            c.setFont(table.getFont());
        }
}