2 * Jalview - A Sequence Alignment Editor and Viewer ($$Version-Rel$$)
3 * Copyright (C) $$Year-Rel$$ The Jalview Authors
5 * This file is part of Jalview.
7 * Jalview is free software: you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation, either version 3
10 * of the License, or (at your option) any later version.
12 * Jalview is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty
14 * of MERCHANTABILITY or FITNESS FOR A PARTICULAR
15 * PURPOSE. See the GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with Jalview. If not, see <http://www.gnu.org/licenses/>.
19 * The Jalview Authors are detailed in the 'AUTHORS' file.
21 //////////////////////////////////////////////////////////////////
24 import jalview.bin.Cache;
25 import jalview.gui.JvOptionPane;
26 import jalview.util.MessageManager;
27 import jalview.util.Platform;
29 import java.awt.Component;
30 import java.awt.Dimension;
31 import java.awt.EventQueue;
32 import java.awt.HeadlessException;
33 import java.awt.event.MouseAdapter;
34 import java.awt.event.MouseEvent;
36 import java.util.ArrayList;
37 import java.util.List;
38 import java.util.StringTokenizer;
39 import java.util.Vector;
41 import javax.swing.DefaultListCellRenderer;
42 import javax.swing.JFileChooser;
43 import javax.swing.JList;
44 import javax.swing.JPanel;
45 import javax.swing.JScrollPane;
46 import javax.swing.SpringLayout;
47 import javax.swing.SwingUtilities;
48 import javax.swing.border.TitledBorder;
49 import javax.swing.plaf.basic.BasicFileChooserUI;
52 * Enhanced file chooser dialog box.
54 * NOTE: bug on Windows systems when filechooser opened on directory to view
55 * files with colons in title.
60 public class JalviewFileChooser extends JFileChooser
63 * Factory method to return a file chooser that offers readable alignment file
70 public static JalviewFileChooser forRead(String directory,
73 List<String> extensions = new ArrayList<>();
74 List<String> descs = new ArrayList<>();
75 for (FileFormatI format : FileFormats.getInstance().getFormats())
77 if (format.isReadable())
79 extensions.add(format.getExtensions());
80 descs.add(format.getName());
83 return new JalviewFileChooser(directory,
84 extensions.toArray(new String[extensions.size()]),
85 descs.toArray(new String[descs.size()]), selected, true);
89 * Factory method to return a file chooser that offers writable alignment file
96 public static JalviewFileChooser forWrite(String directory,
99 // TODO in Java 8, forRead and forWrite can be a single method
100 // with a lambda expression parameter for isReadable/isWritable
101 List<String> extensions = new ArrayList<>();
102 List<String> descs = new ArrayList<>();
103 for (FileFormatI format : FileFormats.getInstance().getFormats())
105 if (format.isWritable())
107 extensions.add(format.getExtensions());
108 descs.add(format.getName());
111 return new JalviewFileChooser(directory,
112 extensions.toArray(new String[extensions.size()]),
113 descs.toArray(new String[descs.size()]), selected, false);
116 public JalviewFileChooser(String dir)
118 super(safePath(dir));
119 setAccessory(new RecentlyOpened());
122 public JalviewFileChooser(String dir, String[] suffix, String[] desc,
125 this(dir, suffix, desc, selected, true);
129 * Constructor for a single choice of file extension and description
134 public JalviewFileChooser(String extension, String desc)
136 this(Cache.getProperty("LAST_DIRECTORY"), new String[] { extension },
138 { desc }, desc, true);
141 JalviewFileChooser(String dir, String[] extensions, String[] descs,
142 String selected, boolean allFiles)
144 super(safePath(dir));
145 if (extensions.length == descs.length)
147 List<String[]> formats = new ArrayList<>();
148 for (int i = 0; i < extensions.length; i++)
150 formats.add(new String[] { extensions[i], descs[i] });
152 init(formats, selected, allFiles);
156 System.err.println("JalviewFileChooser arguments mismatch: "
157 + extensions + ", " + descs);
161 private static File safePath(String dir)
168 File f = new File(dir);
169 if (f.getName().indexOf(':') > -1)
179 * a list of {extensions, description} for each file format
182 * if true, 'any format' option is included
184 void init(List<String[]> formats, String selected, boolean allFiles)
187 JalviewFileFilter chosen = null;
189 // SelectAllFilter needs to be set first before adding further
190 // file filters to fix bug on Mac OSX
191 setAcceptAllFileFilterUsed(allFiles);
193 for (String[] format : formats)
195 JalviewFileFilter jvf = new JalviewFileFilter(format[0], format[1]);
196 addChoosableFileFilter(jvf);
197 if ((selected != null) && selected.equalsIgnoreCase(format[1]))
205 setFileFilter(chosen);
208 setAccessory(new RecentlyOpened());
212 public void setFileFilter(javax.swing.filechooser.FileFilter filter)
214 super.setFileFilter(filter);
218 if (getUI() instanceof BasicFileChooserUI)
220 final BasicFileChooserUI fcui = (BasicFileChooserUI) getUI();
221 final String name = fcui.getFileName().trim();
223 if ((name == null) || (name.length() == 0))
228 EventQueue.invokeLater(new Thread()
233 String currentName = fcui.getFileName();
234 if ((currentName == null) || (currentName.length() == 0))
236 fcui.setFileName(name);
241 } catch (Exception ex)
243 ex.printStackTrace();
244 // Some platforms do not have BasicFileChooserUI
249 * Returns the selected file format, or null if none selected
253 public FileFormatI getSelectedFormat()
255 if (getFileFilter() == null)
261 * logic here depends on option description being formatted as
262 * formatName (extension, extension...)
263 * or the 'no option selected' value
265 * @see JalviewFileFilter.getDescription
267 String format = getFileFilter().getDescription();
268 int parenPos = format.indexOf("(");
271 format = format.substring(0, parenPos).trim();
274 return FileFormats.getInstance().forName(format);
275 } catch (IllegalArgumentException e)
277 System.err.println("Unexpected format: " + format);
283 File ourselectedFile = null;
286 public File getSelectedFile()
288 File selfile = super.getSelectedFile();
289 if (selfile == null && ourselectedFile != null)
291 return ourselectedFile;
297 public int showSaveDialog(Component parent) throws HeadlessException
299 this.setAccessory(null);
300 this.setSelectedFile(null);
301 return super.showSaveDialog(parent);
305 * If doing a Save, and an existing file is chosen or entered, prompt for
306 * confirmation of overwrite. Proceed if Yes, else leave the file chooser
309 * @see https://stackoverflow.com/questions/8581215/jfilechooser-and-checking-for-overwrite
312 public void approveSelection()
314 if (getDialogType() != SAVE_DIALOG)
316 super.approveSelection();
320 ourselectedFile = getSelectedFile();
322 if (ourselectedFile == null)
324 // Workaround for Java 9,10 on OSX - no selected file, but there is a
328 String filename = ((BasicFileChooserUI) getUI()).getFileName();
329 if (filename != null && filename.length() > 0)
331 ourselectedFile = new File(getCurrentDirectory(), filename);
333 } catch (Throwable x)
336 "Unexpected exception when trying to get filename.");
339 // TODO: ENSURE THAT FILES SAVED WITH A ':' IN THE NAME ARE REFUSED AND
341 // USER PROMPTED FOR A NEW FILENAME
343 if (ourselectedFile == null)
348 if (getFileFilter() instanceof JalviewFileFilter)
350 JalviewFileFilter jvf = (JalviewFileFilter) getFileFilter();
352 if (!jvf.accept(ourselectedFile))
354 String withExtension = getSelectedFile().getName() + "."
355 + jvf.getAcceptableExtension();
356 ourselectedFile = (new File(getCurrentDirectory(), withExtension));
357 setSelectedFile(ourselectedFile);
361 if (ourselectedFile.exists())
363 int confirm = JvOptionPane.showConfirmDialog(this,
364 MessageManager.getString("label.overwrite_existing_file"),
365 MessageManager.getString("label.file_already_exists"),
366 JvOptionPane.YES_NO_OPTION);
368 if (confirm != JvOptionPane.YES_OPTION)
374 super.approveSelection();
377 void recentListSelectionChanged(Object selection)
379 setSelectedFile(null);
380 if (selection != null)
382 File file = new File((String) selection);
383 if (getFileFilter() instanceof JalviewFileFilter)
385 JalviewFileFilter jvf = (JalviewFileFilter) this.getFileFilter();
387 if (!jvf.accept(file))
389 setFileFilter(getChoosableFileFilters()[0]);
393 setSelectedFile(file);
398 * A panel to set as the 'accessory' component to the file chooser dialog,
399 * holding a list of recently opened files (if any). These are held as a
400 * tab-separated list of file paths under key <code>RECENT_FILE</code> in
401 * <code>.jalview_properties</code>. A click in the list calls a method in
402 * JalviewFileChooser to set the chosen file as the selection.
404 class RecentlyOpened extends JPanel
406 private static final long serialVersionUID = 1L;
408 private JList<String> list;
412 String historyItems = Cache.getProperty("RECENT_FILE");
414 Vector<String> recent = new Vector<>();
416 if (historyItems != null)
418 st = new StringTokenizer(historyItems, "\t");
419 while (st.hasMoreTokens())
421 recent.addElement(st.nextToken());
425 list = new JList<>(recent);
427 DefaultListCellRenderer dlcr = new DefaultListCellRenderer();
428 dlcr.setHorizontalAlignment(DefaultListCellRenderer.RIGHT);
429 list.setCellRenderer(dlcr);
431 list.addMouseListener(new MouseAdapter()
434 public void mousePressed(MouseEvent evt)
436 recentListSelectionChanged(list.getSelectedValue());
440 this.setBorder(new TitledBorder(
441 MessageManager.getString("label.recently_opened")));
443 final JScrollPane scroller = new JScrollPane(list);
445 SpringLayout layout = new SpringLayout();
446 layout.putConstraint(SpringLayout.WEST, scroller, 5,
447 SpringLayout.WEST, this);
448 layout.putConstraint(SpringLayout.NORTH, scroller, 5,
449 SpringLayout.NORTH, this);
451 if (Platform.isAMac())
453 scroller.setPreferredSize(new Dimension(500, 100));
457 scroller.setPreferredSize(new Dimension(130, 200));
462 SwingUtilities.invokeLater(new Runnable()
467 scroller.getHorizontalScrollBar()
468 .setValue(scroller.getHorizontalScrollBar().getMaximum());