001    /**
002     * planningtool - A Planning Tool with Critiquing Support.
003     * 
004     * Copyright (C) 2006 olale
005    
006     * This program is free software; you can redistribute it and/or
007     * modify it under the terms of the GNU General Public License
008     * as published by the Free Software Foundation; either version 2
009     * of the License, or (at your option) any later version.
010    
011     * This program is distributed in the hope that it will be useful,
012     * but WITHOUT ANY WARRANTY; without even the implied warranty of
013     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
014     * GNU General Public License for more details.
015    
016     * You should have received a copy of the GNU General Public License
017     * along with this program; if not, write to the Free Software
018     * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
019    
020     * Contact information: 
021     * E-mail: olale@ida.liu.se
022     *         olale@lysator.liu.se
023     */
024    package se.liu.ida.critiquer.gui;
025    
026    import java.awt.Color;
027    import java.awt.event.ItemEvent;
028    import java.awt.event.ItemListener;
029    
030    import javax.swing.JCheckBox;
031    
032    import se.liu.ida.critiquer.constraints.ConstraintStatusListener;
033    import se.liu.ida.critiquer.constraints.StandardConstraint;
034    
035    class ConstraintCheckBox extends JCheckBox implements ItemListener, ConstraintStatusListener {
036    
037            /**
038         * 
039         */
040            private static final long serialVersionUID = 1L;
041    
042            private StandardConstraint                       c;
043            public void itemStateChanged(ItemEvent e) {
044                    if (isSelected()) {
045                            c.setActive(true);
046                    } else {
047                            c.setActive(false);
048                    }
049                    PlanningTool.forceGUIUpdate();
050            }
051    
052            public ConstraintCheckBox(StandardConstraint c) {
053                    this.c = c;
054                    addItemListener(this);
055                    StandardConstraint.addStatusListener(this);
056                    
057            }
058    
059            public Class getClassMember() {
060                    return c.getClass();
061            }
062            public String getText() {
063                    return (c != null ? c.getClass().getSimpleName() : "");
064            }
065    
066            @SuppressWarnings("unchecked")
067            public boolean isApplicableFor(View view) {
068                    return c.isApplicableFor(view);
069            }
070    
071            /**
072         * 
073         * Set background color when activating the constraint
074         * 
075         * @see se.liu.ida.critiquer.constraints.ConstraintStatusListener#activeStatusChanged(se.liu.ida.critiquer.constraints.StandardConstraint)
076         */
077            public void activeStatusChanged(StandardConstraint constraint) {
078                    if (constraint==c && !constraint.isActive()) {
079                            updateBackground(constraint);
080                    } 
081            }
082    
083            /**
084         * 
085         * Set the background color of this cell if it is inactive to indicate that
086         * the constraint has information to show although it is not active.
087         * 
088         * @see se.liu.ida.critiquer.constraints.ConstraintStatusListener#violationStatusChanged(se.liu.ida.critiquer.constraints.StandardConstraint)
089         */
090            public void violationStatusChanged(StandardConstraint constraint) {
091                    if (constraint == c && ! constraint.isActive()) {
092                            updateBackground(constraint);
093                    }
094            }
095    
096            private void updateBackground(StandardConstraint constraint) {
097                    if (constraint.isConsistent() ) {
098                            setBackground(Color.WHITE);
099                    } else {
100                            setBackground(Color.RED);
101                    }
102                    revalidate();
103                    repaint();
104            }
105    
106    
107    }