/* * Copyright © 2011 Keith Packard * * 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 altosui; import java.awt.*; import java.awt.event.*; import javax.swing.*; import javax.swing.filechooser.FileNameExtensionFilter; import javax.swing.table.*; import javax.swing.event.*; import java.io.*; import java.util.*; import java.text.*; import java.util.prefs.*; import java.util.concurrent.*; class AltosScanResult { String callsign; int serial; int flight; int channel; int telemetry; boolean interrupted = false; public String toString() { return String.format("%-9.9s serial %-4d flight %-4d (channel %-2d %s)", callsign, serial, flight, channel, Altos.telemetry_name(telemetry)); } public String toShortString() { return String.format("%s %d %d %d %d", callsign, serial, flight, channel, telemetry); } public AltosScanResult(String in_callsign, int in_serial, int in_flight, int in_channel, int in_telemetry) { callsign = in_callsign; serial = in_serial; flight = in_flight; channel = in_channel; telemetry = in_telemetry; } public boolean equals(AltosScanResult other) { return (callsign.equals(other.callsign) && serial == other.serial && flight == other.flight && channel == other.channel && telemetry == other.telemetry); } } class AltosScanResults extends LinkedList implements ListModel { LinkedList listeners = new LinkedList(); public boolean add(AltosScanResult r) { for (AltosScanResult old : this) if (old.equals(r)) return true; super.add(r); ListDataEvent de = new ListDataEvent(this, ListDataEvent.INTERVAL_ADDED, this.size() - 2, this.size() - 1); for (ListDataListener l : listeners) l.contentsChanged(de); return true; } public void addListDataListener(ListDataListener l) { listeners.add(l); } public void removeListDataListener(ListDataListener l) { listeners.remove(l); } public AltosScanResult getElementAt(int i) { return this.get(i); } public int getSize() { return this.size(); } } public class AltosScanUI extends JDialog implements ActionListener { AltosUI owner; AltosDevice device; AltosTelemetryReader reader; private JList list; private JLabel scanning_label; private JButton cancel_button; private JButton monitor_button; javax.swing.Timer timer; AltosScanResults results = new AltosScanResults(); int telemetry; int channel; final static int timeout = 1200; TelemetryHandler handler; Thread thread; void scan_exception(Exception e) { if (e instanceof FileNotFoundException) { JOptionPane.showMessageDialog(owner, String.format("Cannot open device \"%s\"", device.toShortString()), "Cannot open target device", JOptionPane.ERROR_MESSAGE); } else if (e instanceof AltosSerialInUseException) { JOptionPane.showMessageDialog(owner, String.format("Device \"%s\" already in use", device.toShortString()), "Device in use", JOptionPane.ERROR_MESSAGE); } else if (e instanceof IOException) { IOException ee = (IOException) e; JOptionPane.showMessageDialog(owner, device.toShortString(), ee.getLocalizedMessage(), JOptionPane.ERROR_MESSAGE); } else { JOptionPane.showMessageDialog(owner, String.format("Connection to \"%s\" failed", device.toShortString()), "Connection Failed", JOptionPane.ERROR_MESSAGE); } close(); } class TelemetryHandler implements Runnable { public void run() { boolean interrupted = false; try { for (;;) { try { AltosRecord record = reader.read(); if (record == null) continue; if ((record.seen & AltosRecord.seen_flight) != 0) { final AltosScanResult result = new AltosScanResult(record.callsign, record.serial, record.flight, channel, telemetry); Runnable r = new Runnable() { public void run() { results.add(result); } }; SwingUtilities.invokeLater(r); } } catch (ParseException pp) { } catch (AltosCRCException ce) { } } } catch (InterruptedException ee) { interrupted = true; } catch (IOException ie) { } finally { reader.close(interrupted); } } } void set_label() { scanning_label.setText(String.format("Scanning: channel %d %s", channel, Altos.telemetry_name(telemetry))); } void next() { reader.serial.set_monitor(false); try { Thread.sleep(100); } catch (InterruptedException ie){ } ++channel; if (channel > 9) { channel = 0; ++telemetry; if (telemetry > Altos.ao_telemetry_max) telemetry = Altos.ao_telemetry_min; reader.serial.set_telemetry(telemetry); } reader.serial.set_channel(channel); set_label(); reader.serial.set_monitor(true); } void close() { if (thread != null && thread.isAlive()) { thread.interrupt(); try { thread.join(); } catch (InterruptedException ie) {} } thread = null; if (timer != null) timer.stop(); setVisible(false); dispose(); } void tick_timer() { next(); } public void actionPerformed(ActionEvent e) { String cmd = e.getActionCommand(); if (cmd.equals("cancel")) close(); if (cmd.equals("tick")) tick_timer(); if (cmd.equals("monitor")) { close(); AltosScanResult r = (AltosScanResult) (list.getSelectedValue()); if (r != null) { if (device != null) { if (reader != null) { reader.set_telemetry(r.telemetry); reader.set_channel(r.channel); owner.telemetry_window(device); } } } } } /* A window listener to catch closing events and tell the config code */ class ConfigListener extends WindowAdapter { AltosScanUI ui; public ConfigListener(AltosScanUI this_ui) { ui = this_ui; } public void windowClosing(WindowEvent e) { ui.actionPerformed(new ActionEvent(e.getSource(), ActionEvent.ACTION_PERFORMED, "close")); } } private boolean open() { device = AltosDeviceDialog.show(owner, Altos.product_basestation); if (device == null) return false; try { reader = new AltosTelemetryReader(device); reader.serial.set_channel(channel); reader.serial.set_telemetry(telemetry); try { Thread.sleep(100); } catch (InterruptedException ie) { } reader.flush(); handler = new TelemetryHandler(); thread = new Thread(handler); thread.start(); return true; } catch (FileNotFoundException ee) { JOptionPane.showMessageDialog(owner, String.format("Cannot open device \"%s\"", device.toShortString()), "Cannot open target device", JOptionPane.ERROR_MESSAGE); } catch (AltosSerialInUseException si) { JOptionPane.showMessageDialog(owner, String.format("Device \"%s\" already in use", device.toShortString()), "Device in use", JOptionPane.ERROR_MESSAGE); } catch (IOException ee) { JOptionPane.showMessageDialog(owner, device.toShortString(), "Unkonwn I/O error", JOptionPane.ERROR_MESSAGE); } if (reader != null) reader.close(false); return false; } public AltosScanUI(AltosUI in_owner) { owner = in_owner; channel = 0; telemetry = Altos.ao_telemetry_min; if (!open()) return; Container pane = getContentPane(); GridBagConstraints c = new GridBagConstraints(); Insets i = new Insets(4,4,4,4); timer = new javax.swing.Timer(timeout, this); timer.setActionCommand("tick"); timer.restart(); owner = in_owner; pane.setLayout(new GridBagLayout()); scanning_label = new JLabel("Scanning:"); set_label(); c.fill = GridBagConstraints.NONE; c.anchor = GridBagConstraints.CENTER; c.insets = i; c.weightx = 1; c.weighty = 1; c.gridx = 0; c.gridy = 0; c.gridwidth = 2; c.anchor = GridBagConstraints.CENTER; pane.add(scanning_label, c); list = new JList(results) { //Subclass JList to workaround bug 4832765, which can cause the //scroll pane to not let the user easily scroll up to the beginning //of the list. An alternative would be to set the unitIncrement //of the JScrollBar to a fixed value. You wouldn't get the nice //aligned scrolling, but it should work. public int getScrollableUnitIncrement(Rectangle visibleRect, int orientation, int direction) { int row; if (orientation == SwingConstants.VERTICAL && direction < 0 && (row = getFirstVisibleIndex()) != -1) { Rectangle r = getCellBounds(row, row); if ((r.y == visibleRect.y) && (row != 0)) { Point loc = r.getLocation(); loc.y--; int prevIndex = locationToIndex(loc); Rectangle prevR = getCellBounds(prevIndex, prevIndex); if (prevR == null || prevR.y >= r.y) { return 0; } return prevR.height; } } return super.getScrollableUnitIncrement( visibleRect, orientation, direction); } }; list.setSelectionMode(ListSelectionModel.SINGLE_SELECTION); list.setLayoutOrientation(JList.HORIZONTAL_WRAP); list.setVisibleRowCount(-1); list.addMouseListener(new MouseAdapter() { public void mouseClicked(MouseEvent e) { if (e.getClickCount() == 2) { monitor_button.doClick(); //emulate button click } } }); JScrollPane listScroller = new JScrollPane(list); listScroller.setPreferredSize(new Dimension(400, 80)); listScroller.setAlignmentX(LEFT_ALIGNMENT); //Create a container so that we can add a title around //the scroll pane. Can't add a title directly to the //scroll pane because its background would be white. //Lay out the label and scroll pane from top to bottom. JPanel listPane = new JPanel(); listPane.setLayout(new BoxLayout(listPane, BoxLayout.PAGE_AXIS)); JLabel label = new JLabel("Select Device"); label.setLabelFor(list); listPane.add(label); listPane.add(Box.createRigidArea(new Dimension(0,5))); listPane.add(listScroller); listPane.setBorder(BorderFactory.createEmptyBorder(10,10,10,10)); c.fill = GridBagConstraints.BOTH; c.anchor = GridBagConstraints.CENTER; c.insets = i; c.weightx = 1; c.weighty = 1; c.gridx = 0; c.gridy = 1; c.gridwidth = 2; c.anchor = GridBagConstraints.CENTER; pane.add(listPane, c); cancel_button = new JButton("Cancel"); cancel_button.addActionListener(this); cancel_button.setActionCommand("cancel"); c.fill = GridBagConstraints.NONE; c.anchor = GridBagConstraints.CENTER; c.insets = i; c.weightx = 1; c.weighty = 1; c.gridx = 0; c.gridy = 2; c.gridwidth = 1; c.anchor = GridBagConstraints.CENTER; pane.add(cancel_button, c); monitor_button = new JButton("Monitor"); monitor_button.addActionListener(this); monitor_button.setActionCommand("monitor"); c.fill = GridBagConstraints.NONE; c.anchor = GridBagConstraints.CENTER; c.insets = i; c.weightx = 1; c.weighty = 1; c.gridx = 1; c.gridy = 2; c.gridwidth = 1; c.anchor = GridBagConstraints.CENTER; pane.add(monitor_button, c); pack(); setLocationRelativeTo(owner); addWindowListener(new ConfigListener(this)); setVisible(true); } }