--- /dev/null
+/*
+ * Copyright © 2012 Mike Beattie <mike@ethernal.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+
+package org.altusmetrum.altosuilib;
+
+import java.io.File;
+import java.util.prefs.*;
+import org.altusmetrum.AltosLib.*;
+import javax.swing.filechooser.FileSystemView;
+
+public class AltosUIPreferencesBackend implements AltosPreferencesBackend {
+
+ private Preferences _preferences = null;
+
+ public AltosUIPreferencesBackend() {
+ _preferences = Preferences.userRoot().node("/org/altusmetrum/altosui");
+ }
+
+ public AltosUIPreferencesBackend(Preferences in_preferences) {
+ _preferences = in_preferences;
+ }
+
+ public String getString(String key, String def) {
+ return _preferences.get(key, def);
+ }
+ public void putString(String key, String value) {
+ _preferences.put(key, value);
+ }
+
+ public int getInt(String key, int def) {
+ return _preferences.getInt(key, def);
+ }
+ public void putInt(String key, int value) {
+ _preferences.putInt(key, value);
+ }
+
+ public double getDouble(String key, double def) {
+ return _preferences.getDouble(key, def);
+ }
+ public void putDouble(String key, double value) {
+ _preferences.putDouble(key, value);
+ }
+
+ public boolean getBoolean(String key, boolean def) {
+ return _preferences.getBoolean(key, def);
+ }
+ public void putBoolean(String key, boolean value) {
+ _preferences.putBoolean(key, value);
+ }
+
+ public boolean nodeExists(String key) {
+ try {
+ return _preferences.nodeExists(key);
+ } catch (BackingStoreException be) {
+ return false;
+ }
+ }
+
+ public AltosPreferencesBackend node(String key) {
+ return new AltosUIPreferencesBackend(_preferences.node(key));
+ }
+
+ public String[] keys() {
+ try {
+ return _preferences.keys();
+ } catch (BackingStoreException be) {
+ return null;
+ }
+ }
+
+ public void remove(String key) {
+ _preferences.remove(key);
+ }
+
+ public void flush() {
+ try {
+ _preferences.flush();
+ } catch (BackingStoreException ee) {
+ System.err.printf("Cannot save preferences\n");
+ }
+ }
+
+ public File homeDirectory() {
+ /* Use the file system view default directory */
+ return FileSystemView.getFileSystemView().getDefaultDirectory();
+ }
+}