git.gag.com Git - fw/altos/blob - altosuilib/AltosFreqList.java

   1 /*
   2  * Copyright © 2011 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 org.altusmetrum.altosuilib_2;
  19
  20 import java.util.*;
  21 import javax.swing.*;
  22 import java.awt.event.*;
  23 import org.altusmetrum.altoslib_4.*;
  24
  25 class FreqEntry extends JMenuItem {
  26         AltosFrequency  frequency;
  27
  28         public FreqEntry(AltosFrequency frequency) {
  29                 super(frequency.toShortString());
  30                 this.frequency = frequency;
  31         }
  32 }
  33
  34 public class AltosFreqList extends JMenu implements ActionListener {
  35
  36         String  product;
  37         int     serial;
  38         int     calibrate;
  39
  40         AltosFrequency[]        frequencies = new AltosFrequency[0];
  41
  42         int     selected = -1;
  43
  44         LinkedList<ActionListener> action_listeners = new LinkedList<ActionListener>();
  45
  46         public void addActionListener(ActionListener listener) {
  47                 action_listeners.add(listener);
  48         }
  49
  50         public void removeActionListener(ActionListener listener) {
  51                 action_listeners.remove(listener);
  52         }
  53
  54         public void actionPerformed(ActionEvent ev) {
  55                 FreqEntry e = (FreqEntry) ev.getSource();
  56                 set_selected(e.frequency);
  57                 ActionEvent event = new ActionEvent(e.frequency, 0, "selected");
  58                 for (ActionListener l : action_listeners)
  59                         l.actionPerformed(event);
  60         }
  61
  62         private void set_selected(AltosFrequency frequency) {
  63                 for (int i = 0; i < frequencies.length; i++) {
  64                         if (frequencies[i].frequency == frequency.frequency) {
  65                                 selected = i;
  66                                 String  new_text = String.format("Frequency: %7.3f MHz (%s) ▾",
  67                                                                  frequency.frequency,
  68                                                                  frequency.description);
  69                                 setText(new_text);
  70                         }
  71                 }
  72         }
  73
  74         private AltosFrequency get_selected() {
  75                 if (0 <= selected && selected < frequencies.length)
  76                         return frequencies[selected];
  77                 return null;
  78         }
  79
  80         private void add(AltosFrequency add) {
  81                 int insert;
  82
  83                 for (insert = 0; insert < frequencies.length; insert++) {
  84                         if (frequencies[insert].frequency == add.frequency)
  85                                 return;
  86                         if (add.frequency < frequencies[insert].frequency)
  87                                 break;
  88                 }
  89
  90                 AltosFrequency[]        new_frequencies = new AltosFrequency[frequencies.length + 1];
  91
  92                 for (int before = 0; before < insert; before++)
  93                         new_frequencies[before] = frequencies[before];
  94                 new_frequencies[insert] = add;
  95
  96                 for (int after = insert; after < frequencies.length; after++)
  97                         new_frequencies[after+1] = frequencies[after];
  98
  99                 frequencies = new_frequencies;
 100
 101                 FreqEntry       e = new FreqEntry(add);
 102                 add(e, insert);
 103                 e.addActionListener(this);
 104         }
 105
 106         private void remove(AltosFrequency remove) {
 107                 int delete;
 108                 for (delete = 0; delete < frequencies.length; delete++) {
 109                         if (frequencies[delete].frequency == remove.frequency)
 110                                 break;
 111                         if (remove.frequency < frequencies[delete].frequency)
 112                                 return;
 113                 }
 114
 115                 remove(delete);
 116
 117                 AltosFrequency[]        new_frequencies = new AltosFrequency[frequencies.length - 1];
 118
 119                 for (int before = 0; before < delete; before++)
 120                         new_frequencies[before] = frequencies[before];
 121
 122                 for (int after = delete + 1; after < frequencies.length; after++)
 123                         new_frequencies[after-1] = frequencies[after];
 124                 frequencies = new_frequencies;
 125         }
 126
 127         public void set_frequency(double new_frequency) {
 128                 int i;
 129
 130                 if (new_frequency < 0) {
 131                         setVisible(false);
 132                         return;
 133                 }
 134
 135                 for (i = 0; i < frequencies.length; i++) {
 136                         AltosFrequency  f = frequencies[i];
 137
 138                         if (f.close(new_frequency)) {
 139                                 set_selected(f);
 140                                 return;
 141                         }
 142                 }
 143
 144                 String  description = String.format("%s serial %d", product, serial);
 145                 AltosFrequency  frequency = new AltosFrequency(new_frequency, description);
 146                 AltosUIPreferences.add_common_frequency(frequency);
 147
 148                 add(frequency);
 149                 set_selected(frequency);
 150         }
 151
 152         public void set_product(String new_product) {
 153                 product = new_product;
 154         }
 155
 156         public void set_serial(int new_serial) {
 157                 serial = new_serial;
 158         }
 159
 160         public double frequency() {
 161                 AltosFrequency  f = get_selected();
 162                 if (f != null)
 163                         return f.frequency;
 164                 return 434.550;
 165         }
 166
 167         public AltosFreqList () {
 168                 super();
 169                 for (AltosFrequency frequency: AltosUIPreferences.common_frequencies())
 170                         add(frequency);
 171                 product = "Unknown";
 172                 serial = 0;
 173         }
 174
 175         public AltosFreqList(double in_frequency) {
 176                 this();
 177                 set_frequency(in_frequency);
 178         }
 179 }