com.opendoorlogistics.studio.tables.grid.HeaderCellRenderer.java Source code

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Here is the source code for com.opendoorlogistics.studio.tables.grid.HeaderCellRenderer.java
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/*******************************************************************************
 * Copyright (c) 2014 Open Door Logistics (www.opendoorlogistics.com)
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the GNU Lesser Public License v3
 * which accompanies this distribution, and is available at http://www.gnu.org/licenses/lgpl.txt
 ******************************************************************************/
package com.opendoorlogistics.studio.tables.grid;

import java.awt.Color;
import java.awt.Component;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;

import javax.swing.BorderFactory;
import javax.swing.JLabel;
import javax.swing.JTable;
import javax.swing.SwingConstants;
import javax.swing.border.BevelBorder;
import javax.swing.table.TableCellRenderer;

import org.apache.commons.lang3.StringEscapeUtils;

abstract class HeaderCellRenderer implements TableCellRenderer, MouseListener {

    protected final Color disabledColour = new Color(230, 230, 230);
    protected final JLabel columnNameLabel = new JLabel();
    protected final Color selectedColour = new Color(100, 150, 200);

    HeaderCellRenderer() {
        initLabel(columnNameLabel);
    }

    /**
     * 
     */
    protected void initLabel(JLabel label) {
        label.setOpaque(true);
        label.setHorizontalAlignment(SwingConstants.CENTER);
        label.setBorder(BorderFactory.createBevelBorder(BevelBorder.RAISED));
    }

    @Override
    public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus,
            int row, int column) {
        prepareLabel(value, isSelected, getColumnIsItalics(column), columnNameLabel);
        return columnNameLabel;
    }

    protected abstract boolean getColumnIsItalics(int col);

    /**
     * @param value
     * @param isSelected
     */
    protected void prepareLabel(Object value, boolean isSelected, boolean italics, JLabel label) {
        StringBuilder builder = new StringBuilder();
        if (value != null) {
            builder.append("<html><strong>");
            if (italics) {
                builder.append("<em>");
            }
            builder.append(StringEscapeUtils.escapeHtml4(value.toString()));
            if (italics) {
                builder.append("</em>");
            }
            builder.append("</strong></html>");

        }
        label.setText(builder.toString());

        if (isSelected) {
            label.setBackground(selectedColour);
        } else {
            label.setBackground(disabledColour);
        }
    }

    @Override
    public void mouseClicked(MouseEvent e) {
        // TODO Auto-generated method stub

    }

    @Override
    public void mousePressed(MouseEvent e) {
        // TODO Auto-generated method stub

    }

    @Override
    public void mouseReleased(MouseEvent e) {
        // TODO Auto-generated method stub

    }

    @Override
    public void mouseEntered(MouseEvent e) {
        // TODO Auto-generated method stub

    }

    @Override
    public void mouseExited(MouseEvent e) {
        // TODO Auto-generated method stub

    }

}