1/*
2 [The "BSD licence"]
3 Copyright (c) 2009 Shaoting Cai
4 All rights reserved.
5
6 Redistribution and use in source and binary forms, with or without
7 modification, are permitted provided that the following conditions
8 are met:
9 1. Redistributions of source code must retain the above copyright
10    notice, this list of conditions and the following disclaimer.
11 2. Redistributions in binary form must reproduce the above copyright
12    notice, this list of conditions and the following disclaimer in the
13    documentation and/or other materials provided with the distribution.
14 3. The name of the author may not be used to endorse or promote products
15    derived from this software without specific prior written permission.
16
17 THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27*/
28
29package org.antlr.gunit.swingui;
30
31import javax.swing.event.ListDataListener;
32import org.antlr.gunit.swingui.model.Rule;
33import org.antlr.gunit.swingui.ImageFactory;
34import java.awt.Color;
35import java.awt.Component;
36import java.awt.Dimension;
37import java.awt.event.MouseAdapter;
38import java.awt.event.MouseEvent;
39import java.util.List;
40import javax.swing.BorderFactory;
41import javax.swing.DefaultListModel;
42import javax.swing.JLabel;
43import javax.swing.JList;
44import javax.swing.JScrollPane;
45import javax.swing.ListCellRenderer;
46import javax.swing.ListModel;
47import javax.swing.ListSelectionModel;
48import javax.swing.event.ListSelectionListener;
49import org.antlr.gunit.swingui.model.TestSuite;
50
51public class RuleListController implements IController {
52
53    /* Sub-controls */
54    private final JList list = new JList();
55    private final JScrollPane scroll = new JScrollPane( list,
56            JScrollPane.VERTICAL_SCROLLBAR_ALWAYS,
57            JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
58
59    /* Model */
60    private ListModel model = null;
61    private TestSuite testSuite = null;
62
63    public RuleListController() {
64        this.initComponents();
65    }
66
67    public JScrollPane getView() {
68        return scroll;
69    }
70
71    private void setTestSuite(TestSuite newTestSuite) {
72        testSuite = newTestSuite;
73        model = new RuleListModel();
74        list.setModel(model);
75    }
76
77    public void initialize(TestSuite ts) {
78        setTestSuite(ts);
79        if(model.getSize() > 0) list.setSelectedIndex(0);
80        list.updateUI();
81    }
82
83
84    /**
85     * Initialize view.
86     */
87    private void initComponents() {
88
89        scroll.setViewportBorder(BorderFactory.createEtchedBorder());
90        scroll.setBorder(BorderFactory.createTitledBorder(
91                BorderFactory.createEmptyBorder(), "Rules"));
92        scroll.setOpaque(false);
93
94        list.setOpaque(false);
95        list.setSelectionMode(ListSelectionModel.SINGLE_INTERVAL_SELECTION);
96        list.setLayoutOrientation(JList.VERTICAL);
97        list.setCellRenderer(new RuleListItemRenderer());
98    }
99
100    public void setListSelectionListener(ListSelectionListener l) {
101        this.list.addListSelectionListener(l);
102    }
103
104    public Object getModel() {
105        return model;
106    }
107
108
109    /* ITEM RENDERER */
110
111    private class RuleListItemRenderer extends JLabel implements ListCellRenderer{
112
113        public RuleListItemRenderer() {
114            this.setPreferredSize(new Dimension(50, 18));
115        }
116
117        public Component getListCellRendererComponent(
118                JList list, Object value, int index,
119                boolean isSelected, boolean hasFocus) {
120
121            if(value instanceof Rule) {
122                final Rule item = (Rule) value;
123                setText(item.toString());
124                setForeground(list.getForeground());
125
126                setIcon(item.getNotEmpty() ? ImageFactory.getSingleton().FAV16 : null);
127
128                if(list.getSelectedValue() == item ) {
129                    setBackground(Color.LIGHT_GRAY);
130                    setOpaque(true);
131                } else {
132                    setOpaque(false);
133                }
134
135            } else {
136                this.setText("Error!");
137            }
138            return this;
139        }
140    }
141
142    private class RuleListModel implements ListModel {
143
144        public RuleListModel() {
145            if(testSuite == null)
146                throw new NullPointerException("Null test suite");
147        }
148
149        public int getSize() {
150            return testSuite.getRuleCount();
151        }
152
153        public Object getElementAt(int index) {
154            return testSuite.getRule(index);
155        }
156
157        public void addListDataListener(ListDataListener l) {}
158        public void removeListDataListener(ListDataListener l) {}
159    }
160}
161