git.gag.com Git - debian/openrocket/blob - src/net/sf/openrocket/gui/adaptors/MotorConfigurationModel.java

   1 package net.sf.openrocket.gui.adaptors;
   2
   3
   4 import java.util.HashMap;
   5 import java.util.Map;
   6
   7 import javax.swing.ComboBoxModel;
   8 import javax.swing.SwingUtilities;
   9 import javax.swing.event.ChangeEvent;
  10 import javax.swing.event.ChangeListener;
  11 import javax.swing.event.EventListenerList;
  12 import javax.swing.event.ListDataEvent;
  13 import javax.swing.event.ListDataListener;
  14
  15 import net.sf.openrocket.gui.dialogs.EditMotorConfigurationDialog;
  16 import net.sf.openrocket.gui.main.BasicFrame;
  17 import net.sf.openrocket.rocketcomponent.ComponentChangeEvent;
  18 import net.sf.openrocket.rocketcomponent.Configuration;
  19 import net.sf.openrocket.rocketcomponent.Rocket;
  20
  21 public class MotorConfigurationModel implements ComboBoxModel, ChangeListener {
  22
  23         private static final String EDIT = "Edit configurations";
  24
  25
  26         private EventListenerList listenerList = new EventListenerList();
  27
  28         private final Configuration config;
  29         private final Rocket rocket;
  30
  31         private Map<String, ID> map = new HashMap<String, ID>();
  32
  33
  34         public MotorConfigurationModel(Configuration config) {
  35                 this.config = config;
  36                 this.rocket = config.getRocket();
  37                 config.addChangeListener(this);
  38         }
  39
  40
  41
  42         @Override
  43         public Object getElementAt(int index) {
  44                 String[] ids = rocket.getMotorConfigurationIDs();
  45                 if (index < 0  ||  index > ids.length)
  46                         return null;
  47
  48                 if (index == ids.length)
  49                         return EDIT;
  50
  51                 return get(ids[index]);
  52         }
  53
  54         @Override
  55         public int getSize() {
  56                 return rocket.getMotorConfigurationIDs().length + 1;
  57         }
  58
  59         @Override
  60         public Object getSelectedItem() {
  61                 return get(config.getMotorConfigurationID());
  62         }
  63
  64         @Override
  65         public void setSelectedItem(Object item) {
  66                 if (item == EDIT) {
  67
  68                         // Open edit dialog in the future, after combo box has closed
  69                         SwingUtilities.invokeLater(new Runnable() {
  70                                 @Override
  71                                 public void run() {
  72                                         new EditMotorConfigurationDialog(rocket, BasicFrame.findFrame(rocket))
  73                                                 .setVisible(true);
  74                                 }
  75                         });
  76
  77                         return;
  78                 }
  79                 if (!(item instanceof ID))
  80                         return;
  81
  82                 ID idObject = (ID) item;
  83                 config.setMotorConfigurationID(idObject.getID());
  84         }
  85
  86
  87
  88         ////////////////  Event/listener handling  ////////////////
  89
  90
  91         @Override
  92         public void addListDataListener(ListDataListener l) {
  93                 listenerList.add(ListDataListener.class, l);
  94         }
  95
  96         @Override
  97         public void removeListDataListener(ListDataListener l) {
  98                 listenerList.remove(ListDataListener.class, l);
  99         }
 100
 101         protected void fireListDataEvent() {
 102                 Object[] listeners = listenerList.getListenerList();
 103                 ListDataEvent e = null;
 104
 105                 for (int i = listeners.length-2; i>=0; i-=2) {
 106                         if (listeners[i] == ListDataListener.class) {
 107                                 if (e == null)
 108                                         e = new ListDataEvent(this, ListDataEvent.CONTENTS_CHANGED, 0, getSize());
 109                                 ((ListDataListener) listeners[i+1]).contentsChanged(e);
 110                         }
 111                 }
 112         }
 113
 114
 115         @Override
 116         public void stateChanged(ChangeEvent e) {
 117                 if (e instanceof ComponentChangeEvent) {
 118                         // Ignore unnecessary changes
 119                         if (!((ComponentChangeEvent)e).isMotorChange())
 120                                 return;
 121                 }
 122                 fireListDataEvent();
 123         }
 124
 125
 126
 127         /*
 128          * The ID class is an adapter, that contains the actual configuration ID,
 129          * but gives the configuration description as its String representation.
 130          * The get(id) method retrieves ID objects and caches them for reuse.
 131          */
 132
 133         private ID get(String id) {
 134                 ID idObject = map.get(id);
 135                 if (idObject != null)
 136                         return idObject;
 137
 138                 idObject = new ID(id);
 139                 map.put(id, idObject);
 140                 return idObject;
 141         }
 142
 143
 144         private class ID {
 145                 private final String id;
 146
 147                 public ID(String id) {
 148                         this.id = id;
 149                 }
 150
 151                 public String getID() {
 152                         return id;
 153                 }
 154
 155                 @Override
 156                 public String toString() {
 157                         return rocket.getMotorConfigurationNameOrDescription(id);
 158                 }
 159         }
 160
 161 }
 162