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

   1 package net.sf.openrocket.gui.adaptors;
   2
   3
   4 import java.util.EventObject;
   5 import java.util.HashMap;
   6 import java.util.Map;
   7
   8 import javax.swing.ComboBoxModel;
   9 import javax.swing.SwingUtilities;
  10 import javax.swing.event.EventListenerList;
  11 import javax.swing.event.ListDataEvent;
  12 import javax.swing.event.ListDataListener;
  13
  14 import net.sf.openrocket.gui.dialogs.EditMotorConfigurationDialog;
  15 import net.sf.openrocket.gui.main.BasicFrame;
  16 import net.sf.openrocket.l10n.Translator;
  17 import net.sf.openrocket.rocketcomponent.ComponentChangeEvent;
  18 import net.sf.openrocket.rocketcomponent.Configuration;
  19 import net.sf.openrocket.rocketcomponent.Rocket;
  20 import net.sf.openrocket.startup.Application;
  21 import net.sf.openrocket.util.StateChangeListener;
  22
  23 public class MotorConfigurationModel implements ComboBoxModel, StateChangeListener {
  24         private static final Translator trans = Application.getTranslator();
  25
  26         private static final String EDIT = trans.get("MotorCfgModel.Editcfg");
  27
  28
  29         private EventListenerList listenerList = new EventListenerList();
  30
  31         private final Configuration config;
  32         private final Rocket rocket;
  33
  34         private Map<String, ID> map = new HashMap<String, ID>();
  35
  36
  37         public MotorConfigurationModel(Configuration config) {
  38                 this.config = config;
  39                 this.rocket = config.getRocket();
  40                 config.addChangeListener(this);
  41         }
  42
  43
  44
  45         @Override
  46         public Object getElementAt(int index) {
  47                 String[] ids = rocket.getMotorConfigurationIDs();
  48                 if (index < 0  ||  index > ids.length)
  49                         return null;
  50
  51                 if (index == ids.length)
  52                         return EDIT;
  53
  54                 return get(ids[index]);
  55         }
  56
  57         @Override
  58         public int getSize() {
  59                 return rocket.getMotorConfigurationIDs().length + 1;
  60         }
  61
  62         @Override
  63         public Object getSelectedItem() {
  64                 return get(config.getMotorConfigurationID());
  65         }
  66
  67         @Override
  68         public void setSelectedItem(Object item) {
  69                 if (item == null) {
  70                         // Clear selection - huh?
  71                         return;
  72                 }
  73                 if (item == EDIT) {
  74
  75                         // Open edit dialog in the future, after combo box has closed
  76                         SwingUtilities.invokeLater(new Runnable() {
  77                                 @Override
  78                                 public void run() {
  79                                         new EditMotorConfigurationDialog(rocket, BasicFrame.findFrame(rocket))
  80                                                 .setVisible(true);
  81                                 }
  82                         });
  83
  84                         return;
  85                 }
  86                 if (!(item instanceof ID)) {
  87                         throw new IllegalArgumentException("MotorConfigurationModel item="+item);
  88                 }
  89
  90                 ID idObject = (ID) item;
  91                 config.setMotorConfigurationID(idObject.getID());
  92         }
  93
  94
  95
  96         ////////////////  Event/listener handling  ////////////////
  97
  98
  99         @Override
 100         public void addListDataListener(ListDataListener l) {
 101                 listenerList.add(ListDataListener.class, l);
 102         }
 103
 104         @Override
 105         public void removeListDataListener(ListDataListener l) {
 106                 listenerList.remove(ListDataListener.class, l);
 107         }
 108
 109         protected void fireListDataEvent() {
 110                 Object[] listeners = listenerList.getListenerList();
 111                 ListDataEvent e = null;
 112
 113                 for (int i = listeners.length-2; i>=0; i-=2) {
 114                         if (listeners[i] == ListDataListener.class) {
 115                                 if (e == null)
 116                                         e = new ListDataEvent(this, ListDataEvent.CONTENTS_CHANGED, 0, getSize());
 117                                 ((ListDataListener) listeners[i+1]).contentsChanged(e);
 118                         }
 119                 }
 120         }
 121
 122
 123         @Override
 124         public void stateChanged(EventObject e) {
 125                 if (e instanceof ComponentChangeEvent) {
 126                         // Ignore unnecessary changes
 127                         if (!((ComponentChangeEvent)e).isMotorChange())
 128                                 return;
 129                 }
 130                 fireListDataEvent();
 131         }
 132
 133
 134
 135         /*
 136          * The ID class is an adapter, that contains the actual configuration ID,
 137          * but gives the configuration description as its String representation.
 138          * The get(id) method retrieves ID objects and caches them for reuse.
 139          */
 140
 141         private ID get(String id) {
 142                 ID idObject = map.get(id);
 143                 if (idObject != null)
 144                         return idObject;
 145
 146                 idObject = new ID(id);
 147                 map.put(id, idObject);
 148                 return idObject;
 149         }
 150
 151
 152         private class ID {
 153                 private final String id;
 154
 155                 public ID(String id) {
 156                         this.id = id;
 157                 }
 158
 159                 public String getID() {
 160                         return id;
 161                 }
 162
 163                 @Override
 164                 public String toString() {
 165                         return rocket.getMotorConfigurationNameOrDescription(id);
 166                 }
 167         }
 168
 169 }
 170