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 == null) {
  67                         // Clear selection - huh?
  68                         return;
  69                 }
  70                 if (item == EDIT) {
  71
  72                         // Open edit dialog in the future, after combo box has closed
  73                         SwingUtilities.invokeLater(new Runnable() {
  74                                 @Override
  75                                 public void run() {
  76                                         new EditMotorConfigurationDialog(rocket, BasicFrame.findFrame(rocket))
  77                                                 .setVisible(true);
  78                                 }
  79                         });
  80
  81                         return;
  82                 }
  83                 if (!(item instanceof ID)) {
  84                         throw new IllegalArgumentException("MotorConfigurationModel item="+item);
  85                 }
  86
  87                 ID idObject = (ID) item;
  88                 config.setMotorConfigurationID(idObject.getID());
  89         }
  90
  91
  92
  93         ////////////////  Event/listener handling  ////////////////
  94
  95
  96         @Override
  97         public void addListDataListener(ListDataListener l) {
  98                 listenerList.add(ListDataListener.class, l);
  99         }
 100
 101         @Override
 102         public void removeListDataListener(ListDataListener l) {
 103                 listenerList.remove(ListDataListener.class, l);
 104         }
 105
 106         protected void fireListDataEvent() {
 107                 Object[] listeners = listenerList.getListenerList();
 108                 ListDataEvent e = null;
 109
 110                 for (int i = listeners.length-2; i>=0; i-=2) {
 111                         if (listeners[i] == ListDataListener.class) {
 112                                 if (e == null)
 113                                         e = new ListDataEvent(this, ListDataEvent.CONTENTS_CHANGED, 0, getSize());
 114                                 ((ListDataListener) listeners[i+1]).contentsChanged(e);
 115                         }
 116                 }
 117         }
 118
 119
 120         @Override
 121         public void stateChanged(ChangeEvent e) {
 122                 if (e instanceof ComponentChangeEvent) {
 123                         // Ignore unnecessary changes
 124                         if (!((ComponentChangeEvent)e).isMotorChange())
 125                                 return;
 126                 }
 127                 fireListDataEvent();
 128         }
 129
 130
 131
 132         /*
 133          * The ID class is an adapter, that contains the actual configuration ID,
 134          * but gives the configuration description as its String representation.
 135          * The get(id) method retrieves ID objects and caches them for reuse.
 136          */
 137
 138         private ID get(String id) {
 139                 ID idObject = map.get(id);
 140                 if (idObject != null)
 141                         return idObject;
 142
 143                 idObject = new ID(id);
 144                 map.put(id, idObject);
 145                 return idObject;
 146         }
 147
 148
 149         private class ID {
 150                 private final String id;
 151
 152                 public ID(String id) {
 153                         this.id = id;
 154                 }
 155
 156                 public String getID() {
 157                         return id;
 158                 }
 159
 160                 @Override
 161                 public String toString() {
 162                         return rocket.getMotorConfigurationNameOrDescription(id);
 163                 }
 164         }
 165
 166 }
 167