111 lines
3.9 KiB
Java
111 lines
3.9 KiB
Java
package org.insa.graphics.utils;
|
|
|
|
import java.awt.event.ActionEvent;
|
|
import java.awt.event.ActionListener;
|
|
import java.io.File;
|
|
import java.util.EnumMap;
|
|
import java.util.Map;
|
|
import java.util.prefs.Preferences;
|
|
|
|
import javax.swing.JFileChooser;
|
|
import javax.swing.filechooser.FileFilter;
|
|
import javax.swing.filechooser.FileNameExtensionFilter;
|
|
|
|
public class FileUtils {
|
|
|
|
// Preferences
|
|
private static Preferences preferences = Preferences.userRoot().node(FileUtils.class.getName());
|
|
|
|
public enum FolderType {
|
|
Map, PathInput, PathOutput
|
|
}
|
|
|
|
private static class PreferencesEntry {
|
|
public String key;
|
|
public String value;
|
|
|
|
public PreferencesEntry(String key, String value) {
|
|
this.key = key;
|
|
this.value = value;
|
|
}
|
|
}
|
|
|
|
// Map folder type -> PreferencesEntry
|
|
private static final Map<FolderType, PreferencesEntry> folderToEntry = new EnumMap<>(
|
|
FolderType.class);
|
|
|
|
// Map folder type -> File Filter
|
|
private static final Map<FolderType, FileFilter> folderToFilter = new EnumMap<>(
|
|
FolderType.class);
|
|
|
|
static {
|
|
// Populate folderToEntry
|
|
folderToEntry.put(FolderType.Map,
|
|
new PreferencesEntry("DefaultMapFolder", "/home/commetud/..."));
|
|
folderToEntry.put(FolderType.PathInput,
|
|
new PreferencesEntry("DefaultPathInputFolder", "/home/commetud/..."));
|
|
folderToEntry.put(FolderType.PathOutput,
|
|
new PreferencesEntry("DefaultPathOutputsFolder", "paths"));
|
|
|
|
// Populate folderToFilter
|
|
folderToFilter.put(FolderType.Map, new FileNameExtensionFilter("Graph files", "mapgr"));
|
|
folderToFilter.put(FolderType.PathInput, new FileNameExtensionFilter("Path files", "path"));
|
|
folderToFilter.put(FolderType.PathOutput,
|
|
new FileNameExtensionFilter("Path files", "path"));
|
|
}
|
|
|
|
/**
|
|
* @return A File instance pointing to the preferred folder for the given type.
|
|
*/
|
|
public static File getPreferredFolder(FolderType folderType) {
|
|
PreferencesEntry entry = folderToEntry.get(folderType);
|
|
File folder = new File(preferences.get(entry.key, entry.value));
|
|
if (!folder.exists()) {
|
|
folder = new File(System.getProperty("user.dir"));
|
|
}
|
|
return folder;
|
|
}
|
|
|
|
public static void updatePreferredFolder(FolderType folderType, File newPreferredFolder) {
|
|
PreferencesEntry entry = folderToEntry.get(folderType);
|
|
preferences.put(entry.key, newPreferredFolder.getAbsolutePath());
|
|
}
|
|
|
|
/**
|
|
* @return A FileFilter corresponding to input graph files.
|
|
*/
|
|
public static FileFilter getFileFilter(FolderType folderType) {
|
|
return folderToFilter.get(folderType);
|
|
}
|
|
|
|
/**
|
|
* @param folderType
|
|
* @return
|
|
*/
|
|
public static JFileChooser createFileChooser(FolderType folderType, String defaultFileName) {
|
|
JFileChooser chooser = new JFileChooser();
|
|
chooser.setCurrentDirectory(getPreferredFolder(folderType));
|
|
if (defaultFileName != null) {
|
|
chooser.setSelectedFile(new File(chooser.getCurrentDirectory().getAbsolutePath()
|
|
+ File.separator + defaultFileName));
|
|
}
|
|
chooser.setFileFilter(getFileFilter(folderType));
|
|
chooser.addActionListener(new ActionListener() {
|
|
@Override
|
|
public void actionPerformed(ActionEvent e) {
|
|
if (e.getActionCommand().equals(JFileChooser.APPROVE_SELECTION)) {
|
|
if (chooser.getSelectedFile().exists()) {
|
|
updatePreferredFolder(folderType,
|
|
chooser.getSelectedFile().getParentFile());
|
|
}
|
|
}
|
|
}
|
|
});
|
|
return chooser;
|
|
}
|
|
|
|
public static JFileChooser createFileChooser(FolderType folderType) {
|
|
return createFileChooser(folderType, null);
|
|
}
|
|
|
|
}
|