FieldClassChooser.java

/*
 *    ALMA - Atacama Large Millimiter Array
 *    (c) European Southern Observatory, 2002
 *    Copyright by ESO (in the framework of the ALMA collaboration)
 *    and Cosylab 2002, All rights reserved
 *
 *    This library is free software; you can redistribute it and/or
 *    modify it under the terms of the GNU Lesser General Public
 *    License as published by the Free Software Foundation; either
 *    version 2.1 of the License, or (at your option) any later version.
 *
 *    This library 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 library; if not, write to the Free Software
 *    Foundation, Inc., 59 Temple Place, Suite 330, Boston, 
 *    MA 02111-1307  USA
 */
package com.cosylab.logging.settings;

import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;

import javax.swing.JComboBox;
import javax.swing.JOptionPane;
import javax.swing.JPanel;

import com.cosylab.logging.engine.log.LogTypeHelper;
import com.cosylab.logging.engine.log.LogField;
import com.cosylab.logging.engine.Filter;

/**
 * Specific helper class used to allow selection of different editors for
 * different classes of parameters. Creation date: (2/4/02 3:41:28 PM)
 * 
 * @author:
 */
public class FieldClassChooser extends JComboBox {
	private FilterParameterPanel intEditor = null;
	private FilterParameterPanel doubleEditor = null;
	private FilterParameterPanel stringEditor = null;
	private FilterParameterPanel dateEditor = null;
	private FilterParameterPanel typeEditor = null;

	private FilterParameterPanel currentEditor = null;

	private JPanel mainPanel = null;

	private class ChangeListener implements ItemListener {
		public void itemStateChanged(ItemEvent e) {
			if (e.getStateChange() == ItemEvent.SELECTED) {
				FieldClassChooser.this.updateEditor();
			}
		}
	}

	/**
	 * FieldClassChooser constructor comment.
	 */
	public FieldClassChooser() {
		super();

		for (LogField field : LogField.values()) {
			addItem(field.getName());
		}

		addItemListener(new ChangeListener());
	}

	/**
	 * Insert the method's description here. Creation date: (2/4/02 3:44:39 PM)
	 * 
	 * @return javax.swing.JPanel
	 */
	public FilterParameterPanel getDateEditor() {
		return dateEditor;
	}

	/**
	 * Insert the method's description here. Creation date: (2/4/02 3:44:39 PM)
	 * 
	 * @return javax.swing.JPanel
	 */
	public FilterParameterPanel getDoubleEditor() {
		return doubleEditor;
	}

	/**
	 * Insert the method's description here. Creation date: (2/7/02 1:57:55 PM)
	 * 
	 * @return com.cosylab.logging.engine.Filter
	 */
	public Filter getFilter() throws FilterParameterException {
		if (currentEditor != null)
			return currentEditor.getFilter();
		throw new FilterParameterException("No filter specified");
	}

	/**
	 * Insert the method's description here. Creation date: (2/4/02 3:44:39 PM)
	 * 
	 * @return javax.swing.JPanel
	 */
	public FilterParameterPanel getIntEditor() {
		return intEditor;
	}

	public FilterParameterPanel getTypeEditor() {
		return typeEditor;
	}

	/**
	 * Insert the method's description here. Creation date: (2/4/02 3:44:39 PM)
	 * 
	 * @return javax.swing.JPanel
	 */
	public javax.swing.JPanel getMainPanel() {
		return mainPanel;
	}

	/**
	 * Insert the method's description here. Creation date: (2/4/02 3:52:03 PM)
	 * 
	 * @return java.lang.Class
	 */
	public Class getSelectedClass() {
		return LogField.values()[getSelectedIndex()].getType();
	}

	/**
	 * Insert the method's description here. Creation date: (2/4/02 3:44:39 PM)
	 * 
	 * @return javax.swing.JPanel
	 */
	public FilterParameterPanel getStringEditor() {
		return stringEditor;
	}

	/**
	 * Insert the method's description here. Creation date: (2/4/02 3:47:52 PM)
	 * 
	 * @param newEditor
	 *            javax.swing.JPanel
	 */
	private void replaceEditor(FilterParameterPanel newEditor) {
		if (mainPanel != null) {
			mainPanel.removeAll();
			currentEditor = newEditor;
			if (newEditor != null) {
				java.awt.GridBagConstraints c = new java.awt.GridBagConstraints();

				c.fill = java.awt.GridBagConstraints.BOTH;
				c.gridx = 0;
				c.gridy = 0;
				c.weightx = 1.0;
				c.weighty = 1.0;

				newEditor.setFieldIndex(LogField.values()[getSelectedIndex()]);
				newEditor.setLethal(false);

				// mainPanel.add(new JLabel("Test"), c);
				mainPanel.add(newEditor, c);
				mainPanel.doLayout();
				mainPanel.setVisible(false);
				mainPanel.setVisible(true);
				;
				invalidate();
				mainPanel.invalidate();
				invalidate();
				mainPanel.repaint();
			}
		}
	}

	/**
	 * Insert the method's description here. Creation date: (2/4/02 3:44:39 PM)
	 * 
	 * @param newDateEditor
	 *            javax.swing.JPanel
	 */
	public void setDateEditor(FilterParameterPanel newDateEditor) {
		dateEditor = newDateEditor;
		updateEditor();
	}

	/**
	 * Insert the method's description here. Creation date: (2/4/02 3:44:39 PM)
	 * 
	 * @param newDoubleEditor
	 *            javax.swing.JPanel
	 */
	public void setDoubleEditor(FilterParameterPanel newDoubleEditor) {
		doubleEditor = newDoubleEditor;
		updateEditor();
	}

	/**
	 * Insert the method's description here. Creation date: (2/4/02 3:46:51 PM)
	 * 
	 * @param c
	 *            java.lang.Class
	 */
	public void setEditor(Class c) {
		if (c == String.class) {
			replaceEditor(stringEditor);
		} else if (c == LogTypeHelper.class) {
			replaceEditor(typeEditor);
		} else if (c == Long.class) {
			replaceEditor(dateEditor);
		} else if (c == Integer.class) {
			replaceEditor(intEditor);
		}  else {
			JOptionPane.showMessageDialog(null,
					"Unknown class: " + c.getName(), "Error",
					JOptionPane.ERROR_MESSAGE);
			System.err.println("Unknow class: " + c.getName());
		}
	}

	/**
	 * Insert the method's description here. Creation date: (2/7/02 12:59:39 PM)
	 * 
	 * @param f
	 *            com.cosylab.logging.engine.Filter
	 */
	public void setFilter(Filter f) {
		if (f == null)
			return;

		setSelectedIndex(f.getField().ordinal());
		if (currentEditor != null) {
			currentEditor.setFilter(f);
		}
	}

	/**
	 * Insert the method's description here. Creation date: (2/4/02 3:44:39 PM)
	 * 
	 * @param newIntEditor
	 *            javax.swing.JPanel
	 */
	public void setIntEditor(FilterParameterPanel newIntEditor) {
		intEditor = newIntEditor;
		updateEditor();
	}

	public void setTypeEditor(FilterParameterPanel newTypeEditor) {
		typeEditor = newTypeEditor;
	}

	/**
	 * Insert the method's description here. Creation date: (2/4/02 3:44:39 PM)
	 * 
	 * @param newMainPanel
	 *            javax.swing.JPanel
	 */
	public void setMainPanel(javax.swing.JPanel newMainPanel) {
		mainPanel = newMainPanel;
		updateEditor();
	}

	/**
	 * Insert the method's description here. Creation date: (2/4/02 3:44:39 PM)
	 * 
	 * @param newStringEditor
	 *            javax.swing.JPanel
	 */
	public void setStringEditor(FilterParameterPanel newStringEditor) {
		stringEditor = newStringEditor;
		updateEditor();
	}

	/**
	 * Insert the method's description here.
	 * Creation date: (2/4/02 3:52:53 PM)
	 */
	protected void updateEditor() {
		setEditor(getSelectedClass());
	}
}