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/**
 * DataCleaner (community edition)
 * Copyright (C) 2014 Neopost - Customer Information Management
 *
 * This copyrighted material is made available to anyone wishing to use, modify,
 * copy, or redistribute it subject to the terms and conditions of the GNU
 * Lesser General Public License, as published by the Free Software Foundation.
 *
 * This program 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 Lesser General Public License
 * for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this distribution; if not, write to:
 * Free Software Foundation, Inc.
 * 51 Franklin Street, Fifth Floor
 * Boston, MA  02110-1301  USA
 */
package org.datacleaner.widgets.table;

import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.Insets;

import javax.swing.JScrollBar;
import javax.swing.JScrollPane;
import javax.swing.table.JTableHeader;

import org.datacleaner.panels.DCPanel;
import org.datacleaner.util.WidgetUtils;

/**
 * Defines a panel that wraps a {@link DCTable} (including headers, scrollbars
 * etc).
 */
public final class DCTablePanel extends DCPanel {

	private static final long serialVersionUID = 1L;

	private final JScrollPane _scrollPane;
	private final DCTable _table;

	public DCTablePanel(DCTable table, boolean scrolleable) {
		_table = table;
		setLayout(new BorderLayout());
		final JTableHeader tableHeader = table.getTableHeader();
        add(tableHeader, BorderLayout.NORTH);

        tableHeader.setBorder(WidgetUtils.BORDER_TABLE_PANEL);
        table.setBorder(WidgetUtils.BORDER_TABLE_PANEL);
		
		if (scrolleable) {
		    _scrollPane = WidgetUtils.scrolleable(table);
		    add(_scrollPane, BorderLayout.CENTER);
		} else {
		    _scrollPane = null;
		    add(table, BorderLayout.CENTER);
		}
		
	}

	@Override
	public void setPreferredSize(Dimension preferredSize) {
		throw new UnsupportedOperationException();
	}

	@Override
	public Dimension getPreferredSize() {
	    if (_scrollPane == null) {
	        return super.getPreferredSize();
	    }
		Dimension tableSize = _table.getPreferredSize();
		Dimension headerSize = _table.getTableHeader().getPreferredSize();

		Dimension d = new Dimension();
		d.width = Math.max(tableSize.width, headerSize.width);
		d.height = headerSize.height + (_table.getRowHeight() * _table.getRowCount());

		Insets insets = getInsets();
		d.height = d.height + insets.top + insets.bottom;

		JScrollBar scrollBar = _scrollPane.getHorizontalScrollBar();
		int scrollbarHeight = scrollBar.getHeight();
		
		d.height = d.height + scrollbarHeight;

		return d;
	}

	@Override
	public void setVisible(boolean visible) {
		_table.setVisible(visible);
	}

	@Override
	public boolean isVisible() {
		return _table.isVisible();
	}
}