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         boolean label = true;
  63
  64         public void set_label(boolean label) {
  65                 this.label = label;
  66                 set_label();
  67         }
  68
  69         private void set_label() {
  70                 String  new_text = "";
  71                 if (0 <= selected && selected < frequencies.length) {
  72                         AltosFrequency  frequency = frequencies[selected];
  73                         new_text = String.format("%s%7.3f MHz (%s) ▾",
  74                                                  label ? "Frequency: " : "",
  75                                                  frequency.frequency,
  76                                                  frequency.description);
  77                 }
  78                 setText(new_text);
  79         }
  80
  81         private void set_selected(AltosFrequency frequency) {
  82                 for (int i = 0; i < frequencies.length; i++) {
  83                         if (frequencies[i].frequency == frequency.frequency) {
  84                                 selected = i;
  85                                 set_label();
  86                         }
  87                 }
  88         }
  89
  90         private AltosFrequency get_selected() {
  91                 if (0 <= selected && selected < frequencies.length)
  92                         return frequencies[selected];
  93                 return null;
  94         }
  95
  96         private void add(AltosFrequency add) {
  97                 int insert;
  98
  99                 for (insert = 0; insert < frequencies.length; insert++) {
 100                         if (frequencies[insert].frequency == add.frequency)
 101                                 return;
 102                         if (add.frequency < frequencies[insert].frequency)
 103                                 break;
 104                 }
 105
 106                 AltosFrequency[]        new_frequencies = new AltosFrequency[frequencies.length + 1];
 107
 108                 for (int before = 0; before < insert; before++)
 109                         new_frequencies[before] = frequencies[before];
 110                 new_frequencies[insert] = add;
 111
 112                 for (int after = insert; after < frequencies.length; after++)
 113                         new_frequencies[after+1] = frequencies[after];
 114
 115                 frequencies = new_frequencies;
 116
 117                 FreqEntry       e = new FreqEntry(add);
 118                 add(e, insert);
 119                 e.addActionListener(this);
 120         }
 121
 122         private void remove(AltosFrequency remove) {
 123                 int delete;
 124                 for (delete = 0; delete < frequencies.length; delete++) {
 125                         if (frequencies[delete].frequency == remove.frequency)
 126                                 break;
 127                         if (remove.frequency < frequencies[delete].frequency)
 128                                 return;
 129                 }
 130
 131                 remove(delete);
 132
 133                 AltosFrequency[]        new_frequencies = new AltosFrequency[frequencies.length - 1];
 134
 135                 for (int before = 0; before < delete; before++)
 136                         new_frequencies[before] = frequencies[before];
 137
 138                 for (int after = delete + 1; after < frequencies.length; after++)
 139                         new_frequencies[after-1] = frequencies[after];
 140                 frequencies = new_frequencies;
 141         }
 142
 143         public void set_frequency(double new_frequency) {
 144                 int i;
 145
 146                 if (new_frequency < 0) {
 147                         setVisible(false);
 148                         return;
 149                 }
 150
 151                 for (i = 0; i < frequencies.length; i++) {
 152                         AltosFrequency  f = frequencies[i];
 153
 154                         if (f.close(new_frequency)) {
 155                                 set_selected(f);
 156                                 return;
 157                         }
 158                 }
 159
 160                 String  description = String.format("%s serial %d", product, serial);
 161                 AltosFrequency  frequency = new AltosFrequency(new_frequency, description);
 162                 AltosUIPreferences.add_common_frequency(frequency);
 163
 164                 add(frequency);
 165                 set_selected(frequency);
 166         }
 167
 168         public void set_product(String new_product) {
 169                 product = new_product;
 170         }
 171
 172         public void set_serial(int new_serial) {
 173                 serial = new_serial;
 174         }
 175
 176         public double frequency() {
 177                 AltosFrequency  f = get_selected();
 178                 if (f != null)
 179                         return f.frequency;
 180                 return 434.550;
 181         }
 182
 183         public AltosFreqList(double in_frequency, boolean label) {
 184                 super();
 185                 this.label = label;
 186
 187                 for (AltosFrequency frequency: AltosUIPreferences.common_frequencies())
 188                         add(frequency);
 189                 product = "Unknown";
 190                 serial = 0;
 191
 192                 if (in_frequency != 0)
 193                         set_frequency(in_frequency);
 194         }
 195         public AltosFreqList(double in_frequency) {
 196                 this(in_frequency, true);
 197         }
 198
 199         public AltosFreqList (boolean label) {
 200                 this(0, label);
 201         }
 202
 203         public AltosFreqList () {
 204                 this(0, true);
 205         }
 206 }