package org.rosuda.JGR;

//JGR - Java Gui for R, see http://www.rosuda.org/JGR/
//Copyright (C) 2003 - 2005 Markus Helbig
//--- for licensing information see LICENSE file in the original JGR distribution ---


import java.awt.*;
import java.awt.event.*;
import java.beans.*;
import java.io.File;

import javax.swing.*;

import org.rosuda.ibase.*;
import org.rosuda.JGR.toolkit.*;

/**
 *  JGRDataFileSaveDialog - implementation of a file-dialog which allows saving datasets by choosing several options.
 *
 *	@author Markus Helbig
 *
 * 	RoSuDa 2003 - 2005
 */

public class JGRDataFileSaveDialog extends JFileChooser implements ActionListener, ItemListener {

    private JCheckBox append = new JCheckBox("append",false);
    private JCheckBox quote = new JCheckBox("quote",false);
    private JCheckBox rownames = new JCheckBox("row.names",false);
	
	private JButton ok = new JButton("Save");
	private JButton cancel = new JButton("Cancel");
	
    private JComboBoxExt sepsBox = new JComboBoxExt(new String[] {"\\t","blank",",",";","|","Others..."});
    private String[] seps = new String[] {"\\t"," ",",",";","|"};
    
    private String data;
	
	private Dimension screenSize = Common.getScreenRes();
    
    /**
     * Create a new Save-filedialog.
     * @param f parent frame
     * @param data name of dataset which should be saved
     * @param directory current directory
     */
    public JGRDataFileSaveDialog(Frame f, String data, String directory) {
        this.setDialogTitle("Save DatFile - "+data);
        if (directory != null && new File(directory).exists()) this.setCurrentDirectory(new File(directory));
        this.data = data;
        this.addActionListener(this);
		
		sepsBox.setMinimumSize(new Dimension(90,22));
		sepsBox.setPreferredSize(new Dimension(90,22));
		sepsBox.setMaximumSize(new Dimension(90,22));
		
		sepsBox.addItemListener(this);

		if (System.getProperty("os.name").startsWith("Window")) {
			JPanel fileview = (JPanel)((JComponent)((JComponent)this.getComponent(2)).getComponent(2)).getComponent(2);
			JPanel command = new JPanel(new FlowLayout(FlowLayout.LEFT));
			command.add(append);
			command.add(new JLabel("seps="));
			command.add(sepsBox);
			command.add(rownames);
			command.add(quote);
			
			fileview.add(command);
			JPanel pp = (JPanel) ((JComponent)((JComponent)this.getComponent(2)).getComponent(2)).getComponent(0);
			pp.add(new JPanel());
			this.setPreferredSize(new Dimension(655,450));
		}
		else {
			JPanel command = new JPanel(new FlowLayout(FlowLayout.LEFT));
			command.add(append);
			command.add(new JLabel("seps="));
			command.add(sepsBox);
			command.add(rownames);
			command.add(quote);

			JPanel filename = (JPanel) this.getComponent(this.getComponentCount()-1);
			filename.add(command,filename.getComponentCount()-1);
			this.setPreferredSize(new Dimension(550,450));
		}
		this.showSaveDialog(f);
    }
    
    
    /**
     * Save dataset to choosen file, with specified options.
     */
    public void saveFile() {
		if (this.getSelectedFile() != null) {
			JGR.directory = this.getCurrentDirectory().getAbsolutePath()+File.separator;
			String file = this.getSelectedFile().toString();
			
			String useSep;
			if (sepsBox.getSelectedIndex() >= seps.length) useSep = sepsBox.getSelectedItem().toString();
			else useSep = seps[sepsBox.getSelectedIndex()];
			
			String cmd = "write.table("+data+",\""+file.replace('\\','/')+"\",append="+(append.isSelected()?"T":"F")+",quote="+(quote.isSelected()?"T":"F")+",sep=\""+useSep+"\""+",row.names="+(rownames.isSelected()?"T":"F")+")";
			JGR.MAINRCONSOLE.execute(cmd,true);
		}
	}

    /**
     * actionPerformed: handle action event: menus.
     */
	public void actionPerformed(ActionEvent e) {
		String cmd = e.getActionCommand();
		if (cmd == "ApproveSelection") saveFile();
	}
	
	/**
	 * itemStateChanged: handle item state changed, set separator box editable if "Others..." is choosen.
	 */
	public void itemStateChanged(ItemEvent e) {
	    if (e.getSource() == sepsBox) 
			sepsBox.setEditable((sepsBox.getSelectedIndex() == sepsBox.getItemCount()-1?true:false));
	}
 }