// PathVisio,
// a tool for data visualization and analysis using Biological Pathways
// Copyright 2006-2011 BiGCaT Bioinformatics
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
package org.pathvisio.visualization.gui;

import com.jgoodies.forms.layout.CellConstraints;
import com.jgoodies.forms.layout.FormLayout;

import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.BorderFactory;
import javax.swing.JCheckBox;
import javax.swing.JLabel;
import javax.swing.JPanel;

import org.pathvisio.desktop.visualization.Visualization;
import org.pathvisio.desktop.visualization.VisualizationMethod;

/**
 * Wraps around the configuration panel of a VisualizationMethod
 */
public class MethodPanel extends JPanel implements ActionListener {
	private final VisualizationMethod method;
	private final Visualization visualization;
	private final JPanel configPanel;
	private final JCheckBox checkBox;

	public MethodPanel(Visualization v, String name) {
		visualization = v;
		boolean isActive = true;
		if (v.getMethod(name) == null) 
		{
			method = v.getManager().getVisualizationMethodRegistry().createVisualizationMethod(name);
			isActive = false;
		}
		else method = v.getMethod(name);

		JPanel top = new JPanel();
		FormLayout layout = new FormLayout(
				"pref, 4dlu, pref, 2dlu, pref",
				"pref"
		);
		top.setLayout(layout);

		checkBox = new JCheckBox();
		checkBox.addActionListener(this);
		JLabel nameLabel = new JLabel(method.getName() + ":");
		nameLabel.setFont(nameLabel.getFont().deriveFont(Font.BOLD));
		CellConstraints cc = new CellConstraints();
		top.add(checkBox, cc.xy(1,1));
		top.add(nameLabel, cc.xy(3, 1));
		top.add(new JLabel(method.getDescription()), cc.xy(5, 1));

		setLayout(new FormLayout(
			"fill:pref:grow",
			"pref, 4dlu, pref"
		));

		add(top, cc.xy(1, 1));

		JPanel bottom = new JPanel();
		bottom.setLayout(new FormLayout(
			"15dlu, fill:pref:grow",
			"pref"
		));
		configPanel = method.getConfigurationPanel();
		configPanel.setBorder(BorderFactory.createEtchedBorder());
		bottom.add(configPanel, cc.xy(2, 1));
		add(bottom, cc.xy(1, 3));

		//Initial values
		configPanel.setVisible(isActive);
		checkBox.setSelected(isActive);
	}

	public void actionPerformed(ActionEvent e) {
		if(e.getSource() == checkBox) 
		{
			if (checkBox.isSelected())
				visualization.addMethod(method);
			else
				visualization.removeMethod(method);

			if(method.isConfigurable()) {
				configPanel.setVisible(checkBox.isSelected());
				revalidate();
			}
		}
	}
}