103 lines
2.7 KiB
Java
103 lines
2.7 KiB
Java
/*
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* Copyright © 2011 Keith Packard <keithp@keithp.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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*/
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package org.altusmetrum.altosuilib_14;
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import java.util.*;
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import org.altusmetrum.altoslib_14.*;
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public class AltosBTKnown implements Iterable<AltosBTDevice> {
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LinkedList<AltosBTDevice> devices = new LinkedList<AltosBTDevice>();
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AltosPreferencesBackend bt_pref = AltosUIPreferences.bt_devices();
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private String get_address(String name) {
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return bt_pref.getString(name, "");
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}
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private void set_address(String name, String addr) {
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bt_pref.putString(name, addr);
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}
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private void remove(String name) {
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bt_pref.remove(name);
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}
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private void load() {
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try {
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String[] names = bt_pref.keys();
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for (int i = 0; i < names.length; i++) {
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String name = names[i];
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String addr = get_address(name);
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devices.add(new AltosBTDevice(name, addr));
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}
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} catch (IllegalStateException ie) {
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}
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}
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public Iterator<AltosBTDevice> iterator() {
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return devices.iterator();
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}
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private void flush() {
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AltosUIPreferences.flush_preferences();
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}
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public void set(Iterable<AltosBTDevice> new_devices) {
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for (AltosBTDevice old : devices) {
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boolean found = false;
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for (AltosBTDevice new_device : new_devices) {
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if (new_device.equals(old)) {
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found = true;
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break;
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}
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}
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if (!found)
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remove(old.getName());
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}
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devices = new LinkedList<AltosBTDevice>();
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for (AltosBTDevice new_device : new_devices) {
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devices.add(new_device);
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set_address(new_device.getName(), new_device.getAddr());
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}
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flush();
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}
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public List<AltosDevice> list(int product) {
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LinkedList<AltosDevice> list = new LinkedList<AltosDevice>();
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for (AltosBTDevice device : devices) {
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if (device.matchProduct(product))
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list.add(device);
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}
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return list;
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}
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public AltosBTKnown() {
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devices = new LinkedList<AltosBTDevice>();
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bt_pref = AltosUIPreferences.bt_devices();
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load();
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}
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static AltosBTKnown known;
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static public AltosBTKnown bt_known() {
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if (known == null)
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known = new AltosBTKnown();
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return known;
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}
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}
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