/*
    * Copyright (c) 2003-2008 by Cosylab d. d.
    *
    * This file is part of CosyBeans-Common.
    *
    * CosyBeans-Common is free software: you can redistribute it and/or modify
    * it under the terms of the GNU General Public License as published by
    * the Free Software Foundation, either version 3 of the License, or
    * (at your option) any later version.
   *
   * CosyBeans-Common 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 General Public License for more details.
   *
   * You should have received a copy of the GNU General Public License
   * along with CosyBeans-Common.  If not, see <http://www.gnu.org/licenses/>.
   */
  
  package com.cosylab.gui.components;
  
  import java.awt.Dimension;
  import java.awt.GridBagConstraints;
  import java.awt.GridBagLayout;
  import java.awt.Insets;
  import java.awt.event.ActionEvent;
  import java.awt.event.ActionListener;
  import java.beans.Customizer;
  import java.beans.PropertyChangeEvent;
  import java.beans.PropertyChangeListener;
  
  import javax.swing.ButtonGroup;
  import javax.swing.JCheckBox;
  import javax.swing.JComponent;
  import javax.swing.JPanel;
  import javax.swing.JRadioButton;
  
  import com.cosylab.gui.components.range2.RangedValuePolicy;
  import com.cosylab.gui.components.range2.RescalingValuePolicy;
  import com.cosylab.gui.components.range2.ShiftValuePolicy;
  import com.cosylab.gui.components.range2.TrimValuePolicy;
  
  /**
   * <code>LabelledGaugerCustomizer</code> is a customizer for
   * <code>LabelledGauger</code> which allows customization of its most
   * common properties.
   * 
   * @author <a href="mailto:jaka.bobnar@cosylab.com">Jaka Bobnar</a>
   * @version $Id: LabelledGaugerCustomizer.java,v 1.13 2008-04-22 12:28:40 jbobnar Exp $
   * @see LabelledGauger
   */
  public class LabelledGaugerCustomizer extends AbstractDisplayerPanelCustomizer {
  	private static final long serialVersionUID = 1L;
  	
  	/** Value display tab name. */
  	public static final String VALUE_DISPLAY = "Value Display";
  	/** Tag for minimum property. */
  	public static final String GRAPH_MIN = "minimum";
  	/** Tag for maximum property. */
  	public static final String GRAPH_MAX = "maximum";
  	/** Tag for unitsVisibl property. */
  	public static final String UNITS_VISIBLE = "unitsVisible";
  	/** Tag for format property. */
  	public static final String FORMAT = "format";
  	/** Tag for units property. */
  	public static final String UNITS = "units";
  	/** Scale tab name */
  	public static final String VISUAL_SPECIFIC = "Value Display/Scale";
  	/** Names of the basic visual properties. */
  	public static final String[] VISUAL_BASIC_PROPERTIES = { TITLE, TITLE_VISIBLE, RESIZABLE };
  	/** Names of the value display properties. */
  	public static String[] VALUE_DISPLAY_PROPERTIES = {
  		GRAPH_MIN, GRAPH_MAX, UNITS, UNITS_VISIBLE, FORMAT
  	};
  	
  	private class WPanel extends JPanel implements Customizer
  	{
  		private static final long serialVersionUID = 1L;
  		private ButtonGroup scaleGroup;
  		private LabelledGauger disp;
  
  		// GUI elements
  		private JCheckBox logarithmic;
  		private JRadioButton fixedButton;
  		private JRadioButton slideButton;
  		private JRadioButton stretchButton;
  		private boolean initialized = false;
  		private ActionListener al = null;
  		public WPanel() {
  			al = new ActionListener(){
  
  				public void actionPerformed(ActionEvent e) {
  					applySettings();
  				}
  				
  			};
  			initialize();
  		}
  
 		public void applySettings()
 		{
 			applyDefaultProperties();
 			update();
 		}
 
 		private JRadioButton getFixedButton()
 		{
 			if (fixedButton == null) {
 				fixedButton = new JRadioButton("Fixed");
 				getScaleGroup().add(fixedButton);
 				fixedButton.addActionListener(al);
 			}
 
 			return fixedButton;
 		}
 
 		private JCheckBox getLogarithmic()
 		{
 			if (logarithmic == null) {
 				logarithmic = new JCheckBox("Logarithmic");
 				logarithmic.setPreferredSize(new Dimension(150, 21));
 				logarithmic.setMinimumSize(new Dimension(75, 21));
 				logarithmic.setToolTipText("Use logarithmic scale.");
 				logarithmic.addActionListener(al);
 			}
 
 			return logarithmic;
 		}
 
 		private ButtonGroup getScaleGroup()
 		{
 			if (scaleGroup == null) {
 				scaleGroup = new ButtonGroup();
 			}
 
 			return scaleGroup;
 		}
 
 		private JRadioButton getSlideButton()
 		{
 			if (slideButton == null) {
 				slideButton = new JRadioButton("Slide");
 				getScaleGroup().add(slideButton);
 				slideButton.addActionListener(al);
 			}
 
 			return slideButton;
 		}
 
 		private JRadioButton getStretchButton()
 		{
 			if (stretchButton == null) {
 				stretchButton = new JRadioButton("Stretch");
 				getScaleGroup().add(stretchButton);
 				stretchButton.addActionListener(al);
 			}
 
 			return stretchButton;
 		}
 
 		/*
 		 * Sets editor values to displayer.
 		 */
 		private void applyDefaultProperties()
 		{
 			if (disp == null) {
 				return;
 			}
 			boolean log = getLogarithmic().isSelected();
 			disp.setLogarithmicScale(log);
 
 			RangedValuePolicy policy = new TrimValuePolicy();
 
 			if (getFixedButton().isSelected()) {
 				policy = new TrimValuePolicy();
 			}
 
 			if (getSlideButton().isSelected()) {
 				policy = new ShiftValuePolicy();
 			}
 
 			if (getStretchButton().isSelected()) {
 				policy = new RescalingValuePolicy();
 			}
 
 			disp.setValuePolicy(policy);
 			LabelledGaugerCustomizer.this.firePropertyChange("logarithmicScale", !log, log);
 			LabelledGaugerCustomizer.this.firePropertyChange("scaleMode", null, policy);
 		}
 
 		private void initialize()
 		{
 			if (initialized) {
 				return;
 			}
 
 			initialized = true;
 
 			setLayout(new GridBagLayout());
 			setSize(300, 450);
 			setBorder(new GroupBoxBorder("Scale preferences"));
 
 			Insets insets = new Insets(2, 2, 2, 2);
 
 			add(getLogarithmic(),
 			    new GridBagConstraints(0, 1, 3, 1, 1.0, 1.0,
 			        GridBagConstraints.WEST, GridBagConstraints.HORIZONTAL,
 			        insets, 0, 0));
 
 			add(getFixedButton(),
 			    new GridBagConstraints(0, 0, 1, 1, 1.0, 1.0,
 			        GridBagConstraints.WEST, GridBagConstraints.NONE, insets,
 			        0, 0));
 
 			add(getStretchButton(),
 			    new GridBagConstraints(1, 0, 1, 1, 1.0, 1.0,
 			        GridBagConstraints.WEST, GridBagConstraints.NONE, insets,
 			        0, 0));
 
 			add(getSlideButton(),
 			    new GridBagConstraints(2, 0, 1, 1, 1.0, 1.0,
 			        GridBagConstraints.WEST, GridBagConstraints.NONE, insets,
 			        0, 0));
 		}
 
 		/*
 		 * Updates editor with values from diplayer.
 		 */
 		private void update()
 		{
 			if (disp != null) {
 				getLogarithmic().setSelected(disp.isLogarithmicScale());
 
 				RangedValuePolicy policy = disp.getValuePolicy();
 				if (policy instanceof TrimValuePolicy) {
 					getFixedButton().setSelected(true);
 				} else if (policy instanceof ShiftValuePolicy) {
 					getSlideButton().setSelected(true);
 				} else if (policy instanceof RescalingValuePolicy) {
 					getStretchButton().setSelected(true);
 				}
 			}
 		}
 
 		public void setObject(Object bean) {
 			disp = (LabelledGauger) bean;
 			disp.addPropertyChangeListener("scaleMode", new PropertyChangeListener(){
 				public void propertyChange(PropertyChangeEvent evt) {
 					update();
 				}
 			});
 			disp.addPropertyChangeListener("logarithmicScale", new PropertyChangeListener(){
 				public void propertyChange(PropertyChangeEvent evt) {
 					update();
 				}
 			});
 			update();
 			
 		}
 	}
 	
 	
 	public LabelledGaugerCustomizer() {
 		addCustomizer(VISUAL_SPECIFIC, new WPanel());
 		addCustomizerTable(VALUE_DISPLAY, VALUE_DISPLAY_PROPERTIES);
 		addCustomizerTable(VISUAL_BASIC, VISUAL_BASIC_PROPERTIES);
 		setSize(357, 352);
 	}
 }