001// License: GPL. For details, see LICENSE file.
002package org.openstreetmap.josm.gui.widgets;
003
004import static org.openstreetmap.josm.tools.I18n.tr;
005
006import java.awt.BorderLayout;
007import java.awt.Dimension;
008import java.awt.GridBagLayout;
009import java.util.ArrayList;
010import java.util.List;
011
012import javax.swing.DefaultListModel;
013import javax.swing.JButton;
014import javax.swing.JList;
015import javax.swing.JOptionPane;
016import javax.swing.JPanel;
017import javax.swing.JScrollPane;
018
019import org.openstreetmap.josm.Main;
020import org.openstreetmap.josm.tools.GBC;
021
022/**
023 * A {@link JList} containing items, and {@link JButton}s to add/edit/delete items.
024 */
025public class EditableList extends JPanel {
026
027    public final String title;
028    public final JList<String> sourcesList = new JList<>(new DefaultListModel<String>());
029    public final JButton addSrcButton = new JButton(tr("Add"));
030    public final JButton editSrcButton = new JButton(tr("Edit"));
031    public final JButton deleteSrcButton = new JButton(tr("Delete"));
032
033    /**
034     * Constructs a new {@code EditableList}.
035     * @param title The title displayed in input dialog
036     */
037    public EditableList(String title) {
038        this.title = title;
039        build();
040    }
041
042    protected final void build() {
043
044        setLayout(new BorderLayout());
045
046        addSrcButton.addActionListener(e -> {
047            String source = JOptionPane.showInputDialog(
048                    Main.parent,
049                    title,
050                    title,
051                    JOptionPane.QUESTION_MESSAGE);
052            if (source != null && !source.isEmpty()) {
053                ((DefaultListModel<String>) sourcesList.getModel()).addElement(source);
054            }
055            sourcesList.clearSelection();
056        });
057
058        editSrcButton.addActionListener(e -> {
059            int row = sourcesList.getSelectedIndex();
060            if (row == -1 && sourcesList.getModel().getSize() == 1) {
061                sourcesList.setSelectedIndex(0);
062                row = 0;
063            }
064            if (row == -1) {
065                if (sourcesList.getModel().getSize() == 0) {
066                    String source1 = JOptionPane.showInputDialog(Main.parent, title, title, JOptionPane.QUESTION_MESSAGE);
067                    if (source1 != null && !source1.isEmpty()) {
068                        ((DefaultListModel<String>) sourcesList.getModel()).addElement(source1);
069                    }
070                } else {
071                    JOptionPane.showMessageDialog(
072                            Main.parent,
073                            tr("Please select the row to edit."),
074                            tr("Information"),
075                            JOptionPane.INFORMATION_MESSAGE
076                    );
077                }
078            } else {
079                String source2 = (String) JOptionPane.showInputDialog(Main.parent,
080                        title,
081                        title,
082                        JOptionPane.QUESTION_MESSAGE, null, null,
083                        sourcesList.getSelectedValue());
084                if (source2 != null && !source2.isEmpty()) {
085                    ((DefaultListModel<String>) sourcesList.getModel()).setElementAt(source2, row);
086                }
087            }
088            sourcesList.clearSelection();
089        });
090
091        deleteSrcButton.addActionListener(e -> {
092            if (sourcesList.getSelectedIndex() == -1) {
093                JOptionPane.showMessageDialog(Main.parent, tr("Please select the row to delete."), tr("Information"),
094                        JOptionPane.QUESTION_MESSAGE);
095            } else {
096                ((DefaultListModel<String>) sourcesList.getModel()).remove(sourcesList.getSelectedIndex());
097            }
098        });
099        sourcesList.setMinimumSize(new Dimension(300, 50));
100        sourcesList.setVisibleRowCount(3);
101
102        addSrcButton.setToolTipText(tr("Add a new source to the list."));
103        editSrcButton.setToolTipText(tr("Edit the selected source."));
104        deleteSrcButton.setToolTipText(tr("Delete the selected source from the list."));
105
106        final JPanel buttonPanel = new JPanel(new GridBagLayout());
107        buttonPanel.add(addSrcButton, GBC.std().insets(0, 5, 0, 0));
108        buttonPanel.add(editSrcButton, GBC.std().insets(5, 5, 5, 0));
109        buttonPanel.add(deleteSrcButton, GBC.std().insets(0, 5, 0, 0));
110
111        add(new JScrollPane(sourcesList), BorderLayout.CENTER);
112        add(buttonPanel, BorderLayout.SOUTH);
113        setPreferredSize(new Dimension(300, 50 + (int) buttonPanel.getPreferredSize().getHeight()));
114
115    }
116
117    public void setItems(final Iterable<String> items) {
118        for (String source : items) {
119            ((DefaultListModel<String>) sourcesList.getModel()).addElement(source);
120        }
121    }
122
123    public List<String> getItems() {
124        final List<String> items = new ArrayList<>(sourcesList.getModel().getSize());
125        for (int i = 0; i < sourcesList.getModel().getSize(); ++i) {
126            items.add(sourcesList.getModel().getElementAt(i));
127        }
128        return items;
129    }
130
131    @Override
132    public void setEnabled(boolean enabled) {
133        sourcesList.setEnabled(enabled);
134        addSrcButton.setEnabled(enabled);
135        editSrcButton.setEnabled(enabled);
136        deleteSrcButton.setEnabled(enabled);
137    }
138}