001// License: GPL. For details, see LICENSE file.
002package org.openstreetmap.josm.io.session;
003
004import static org.openstreetmap.josm.tools.I18n.tr;
005
006import java.awt.CardLayout;
007import java.awt.Font;
008import java.awt.GridBagLayout;
009import java.awt.Insets;
010import java.awt.event.ActionEvent;
011import java.awt.event.ActionListener;
012import java.awt.event.ItemEvent;
013import java.awt.event.ItemListener;
014import java.io.File;
015import java.io.IOException;
016import java.io.OutputStream;
017import java.net.MalformedURLException;
018
019import javax.swing.AbstractAction;
020import javax.swing.ButtonGroup;
021import javax.swing.JButton;
022import javax.swing.JLabel;
023import javax.swing.JPanel;
024import javax.swing.JRadioButton;
025import javax.swing.SwingConstants;
026
027import org.openstreetmap.josm.actions.SaveAction;
028import org.openstreetmap.josm.gui.layer.AbstractModifiableLayer;
029import org.openstreetmap.josm.gui.layer.GpxLayer;
030import org.openstreetmap.josm.gui.layer.Layer;
031import org.openstreetmap.josm.gui.layer.OsmDataLayer;
032import org.openstreetmap.josm.gui.util.GuiHelper;
033import org.openstreetmap.josm.gui.widgets.JosmTextField;
034import org.openstreetmap.josm.io.session.SessionWriter.ExportSupport;
035import org.openstreetmap.josm.tools.GBC;
036import org.openstreetmap.josm.tools.ImageProvider;
037import org.w3c.dom.Element;
038
039/**
040 * Generic superclass of {@link OsmDataSessionExporter} and {@link GpxTracksSessionExporter} layer exporters.
041 * @param <T> Type of exported layer
042 * @since 9470
043 */
044public abstract class GenericSessionExporter<T extends Layer> extends AbstractSessionExporter<T> {
045
046    private final String type;
047    private final String version;
048    private final String extension;
049
050    private final JRadioButton link;
051    private final JRadioButton include;
052
053    /**
054     * Constructs a new {@code GenericSessionExporter}.
055     * @param layer layer to export
056     * @param type layer session type
057     * @param version layer session version
058     * @param extension data file extension
059     */
060    protected GenericSessionExporter(T layer, String type, String version, String extension) {
061        super(layer);
062        this.type = type;
063        this.version = version;
064        this.extension = extension;
065        /* I18n: Refer to a OSM/GPX data file in session file */
066        this.link = new JRadioButton(tr("local file"));
067        /* I18n: Include OSM/GPX data in session file */
068        this.include = new JRadioButton(tr("include"));
069    }
070
071    private class LayerSaveAction extends AbstractAction {
072        /**
073         * Constructs a new {@code LayerSaveAction}.
074         */
075        LayerSaveAction() {
076            putValue(SMALL_ICON, new ImageProvider("save").setWidth(16).get());
077            putValue(SHORT_DESCRIPTION, ((AbstractModifiableLayer) layer).requiresSaveToFile() ?
078                    tr("Layer contains unsaved data - save to file.") :
079                    tr("Layer does not contain unsaved data."));
080            updateEnabledState();
081        }
082
083        @Override
084        public void actionPerformed(ActionEvent e) {
085            SaveAction.getInstance().doSave(layer);
086            updateEnabledState();
087        }
088
089        public final void updateEnabledState() {
090            setEnabled(((AbstractModifiableLayer) layer).requiresSaveToFile());
091        }
092    }
093
094    @Override
095    public JPanel getExportPanel() {
096        final JPanel p = new JPanel(new GridBagLayout());
097        JPanel topRow = new JPanel(new GridBagLayout());
098        export.setSelected(true);
099        final JLabel lbl = new JLabel(layer.getName(), layer.getIcon(), SwingConstants.LEFT);
100        lbl.setToolTipText(layer.getToolTipText());
101        lbl.setLabelFor(export);
102        JLabel lblData = new JLabel(tr("Data:"));
103        link.putClientProperty("actionname", "link");
104        if (layer instanceof OsmDataLayer) {
105            link.setToolTipText(tr("Link to a OSM data file on your local disk."));
106            include.setToolTipText(tr("Include OSM data in the .joz session file."));
107        } else if (layer instanceof GpxLayer) {
108            link.setToolTipText(tr("Link to a GPX data file on your local disk."));
109            include.setToolTipText(tr("Include GPX data in the .joz session file."));
110        }
111        include.putClientProperty("actionname", "include");
112        ButtonGroup group = new ButtonGroup();
113        group.add(link);
114        group.add(include);
115
116        JPanel cardLink = new JPanel(new GridBagLayout());
117        final File file = layer.getAssociatedFile();
118        final boolean modifiable = layer instanceof AbstractModifiableLayer;
119        final LayerSaveAction saveAction = modifiable ? new LayerSaveAction() : null;
120        final JButton save = modifiable ? new JButton(saveAction) : null;
121        if (file != null && file.exists()) {
122            JosmTextField tf = new JosmTextField();
123            tf.setText(file.getPath());
124            tf.setEditable(false);
125            cardLink.add(tf, GBC.std());
126            if (save != null) {
127                save.setMargin(new Insets(0, 0, 0, 0));
128                cardLink.add(save, GBC.eol().insets(2, 0, 0, 0));
129            }
130        } else {
131            cardLink.add(new JLabel(tr("No file association")), GBC.eol());
132        }
133
134        JPanel cardInclude = new JPanel(new GridBagLayout());
135        JLabel lblIncl = new JLabel(layer instanceof GpxLayer ?
136                tr("GPX data will be included in the session file.") :
137                tr("OSM data will be included in the session file."));
138        lblIncl.setFont(lblIncl.getFont().deriveFont(Font.PLAIN));
139        cardInclude.add(lblIncl, GBC.eol().fill(GBC.HORIZONTAL));
140
141        final CardLayout cl = new CardLayout();
142        final JPanel cards = new JPanel(cl);
143        cards.add(cardLink, "link");
144        cards.add(cardInclude, "include");
145
146        if (file != null && file.exists()) {
147            link.setSelected(true);
148        } else {
149            link.setEnabled(false);
150            link.setToolTipText(tr("No file association"));
151            include.setSelected(true);
152            cl.show(cards, "include");
153        }
154
155        link.addActionListener(new ActionListener() {
156            @Override
157            public void actionPerformed(ActionEvent e) {
158                cl.show(cards, "link");
159            }
160        });
161        include.addActionListener(new ActionListener() {
162            @Override
163            public void actionPerformed(ActionEvent e) {
164                cl.show(cards, "include");
165            }
166        });
167
168        topRow.add(export, GBC.std());
169        topRow.add(lbl, GBC.std());
170        topRow.add(GBC.glue(1, 0), GBC.std().fill(GBC.HORIZONTAL));
171        p.add(topRow, GBC.eol().fill(GBC.HORIZONTAL));
172        p.add(lblData, GBC.std().insets(10, 0, 0, 0));
173        p.add(link, GBC.std());
174        p.add(include, GBC.eol());
175        p.add(cards, GBC.eol().insets(15, 0, 3, 3));
176
177        export.addItemListener(new ItemListener() {
178            @Override
179            public void itemStateChanged(ItemEvent e) {
180                if (e.getStateChange() == ItemEvent.DESELECTED) {
181                    GuiHelper.setEnabledRec(p, false);
182                    export.setEnabled(true);
183                } else {
184                    GuiHelper.setEnabledRec(p, true);
185                    if (save != null && saveAction != null) {
186                        save.setEnabled(saveAction.isEnabled());
187                    }
188                    link.setEnabled(file != null && file.exists());
189                }
190            }
191        });
192        return p;
193    }
194
195    @Override
196    public Element export(ExportSupport support) throws IOException {
197        Element layerEl = support.createElement("layer");
198        layerEl.setAttribute("type", type);
199        layerEl.setAttribute("version", version);
200
201        Element file = support.createElement("file");
202        layerEl.appendChild(file);
203
204        if (requiresZip()) {
205            String zipPath = "layers/" + String.format("%02d", support.getLayerIndex()) + "/data." + extension;
206            file.appendChild(support.createTextNode(zipPath));
207            addDataFile(support.getOutputStreamZip(zipPath));
208        } else {
209            try {
210                File f = layer.getAssociatedFile();
211                if (f != null) {
212                    file.appendChild(support.createTextNode(f.toURI().toURL().toString()));
213                }
214            } catch (MalformedURLException e) {
215                throw new IOException(e);
216            }
217        }
218        return layerEl;
219    }
220
221    @Override
222    public boolean requiresZip() {
223        return include.isSelected();
224    }
225
226    protected abstract void addDataFile(OutputStream out) throws IOException;
227}