git.gag.com Git - fw/altos/blob - ao-tools/altosui/AltosPreferences.java

   1 /*
   2  * Copyright © 2010 Keith Packard <keithp@keithp.com>
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; version 2 of the License.
   7  *
   8  * This program is distributed in the hope that it will be useful, but
   9  * WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11  * General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public License along
  14  * with this program; if not, write to the Free Software Foundation, Inc.,
  15  * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
  16  */
  17
  18 package altosui;
  19 import java.io.*;
  20 import java.util.*;
  21 import java.text.*;
  22 import java.util.prefs.*;
  23 import java.util.concurrent.LinkedBlockingQueue;
  24 import java.awt.Component;
  25 import javax.swing.*;
  26 import javax.swing.filechooser.FileSystemView;
  27
  28 class AltosPreferences {
  29         static Preferences preferences;
  30
  31         /* logdir preference name */
  32         final static String logdirPreference = "LOGDIR";
  33
  34         /* Default logdir is ~/TeleMetrum */
  35         final static String logdirName = "TeleMetrum";
  36
  37         /* UI Component to pop dialogs up */
  38         static Component component;
  39
  40         /* Log directory */
  41         static File logdir;
  42
  43         public static void init(Component ui) {
  44                 preferences = Preferences.userRoot().node("/org/altusmetrum/altosui");
  45
  46                 component = ui;
  47
  48                 /* Initialize logdir from preferences */
  49                 String logdir_string = preferences.get(logdirPreference, null);
  50                 if (logdir_string != null)
  51                         logdir = new File(logdir_string);
  52                 else {
  53                         /* Use the file system view default directory */
  54                         logdir = new File(FileSystemView.getFileSystemView().getDefaultDirectory(), logdirName);
  55                         if (!logdir.exists())
  56                                 logdir.mkdirs();
  57                 }
  58         }
  59
  60         static void flush_preferences() {
  61                 try {
  62                         preferences.flush();
  63                 } catch (BackingStoreException ee) {
  64                         JOptionPane.showMessageDialog(component,
  65                                                       preferences.absolutePath(),
  66                                                       "Cannot save prefernces",
  67                                                       JOptionPane.ERROR_MESSAGE);
  68                 }
  69         }
  70
  71         public static void set_logdir(File new_logdir) {
  72                 logdir = new_logdir;
  73                 synchronized (preferences) {
  74                         preferences.put(logdirPreference, logdir.getPath());
  75                         flush_preferences();
  76                 }
  77         }
  78
  79         private static boolean check_dir(File dir) {
  80                 if (!dir.exists()) {
  81                         if (!dir.mkdirs()) {
  82                                 JOptionPane.showMessageDialog(component,
  83                                                               dir.getName(),
  84                                                               "Cannot create directory",
  85                                                               JOptionPane.ERROR_MESSAGE);
  86                                 return false;
  87                         }
  88                 } else if (!dir.isDirectory()) {
  89                         JOptionPane.showMessageDialog(component,
  90                                                       dir.getName(),
  91                                                       "Is not a directory",
  92                                                       JOptionPane.ERROR_MESSAGE);
  93                         return false;
  94                 }
  95                 return true;
  96         }
  97
  98         /* Configure the log directory. This is where all telemetry and eeprom files
  99          * will be written to, and where replay will look for telemetry files
 100          */
 101         public static void ConfigureLog() {
 102                 JFileChooser    logdir_chooser = new JFileChooser(logdir.getParentFile());
 103
 104                 logdir_chooser.setDialogTitle("Configure Data Logging Directory");
 105                 logdir_chooser.setFileSelectionMode(JFileChooser.DIRECTORIES_ONLY);
 106
 107                 if (logdir_chooser.showDialog(component, "Select Directory") == JFileChooser.APPROVE_OPTION) {
 108                         File dir = logdir_chooser.getSelectedFile();
 109                         if (check_dir(dir))
 110                                 set_logdir(dir);
 111                 }
 112         }
 113
 114         public static File logdir() {
 115                 return logdir;
 116         }
 117 }