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

   1 package net.sf.openrocket.gui.adaptors;
   2
   3 import java.util.List;
   4
   5 import javax.swing.AbstractListModel;
   6 import javax.swing.ComboBoxModel;
   7
   8 import net.sf.openrocket.preset.ComponentPreset;
   9 import net.sf.openrocket.rocketcomponent.RocketComponent;
  10 import net.sf.openrocket.startup.Application;
  11
  12 public class BodyTubePresetModel extends AbstractListModel implements ComboBoxModel {
  13
  14         private final RocketComponent component;
  15
  16         private List<ComponentPreset> presets;
  17
  18         public BodyTubePresetModel(RocketComponent component) {
  19                 presets = Application.getDaos().getBodyTubePresetDao().listAll();
  20                 this.component = component;
  21         }
  22
  23         public static class BodyTubePresetAdapter {
  24                 // If the ComponentPreset bt is null, then no preset is selected.
  25                 private ComponentPreset bt;
  26                 private BodyTubePresetAdapter( ComponentPreset bt ) {
  27                         this.bt = bt;
  28                 }
  29                 @Override
  30                 public String toString() {
  31                         if ( bt != null ) {
  32                                 return bt.getManufacturer() + " " + bt.getPartNo();
  33                         } else {
  34                                 return "";
  35                         }
  36                 }
  37                 @Override
  38                 public int hashCode() {
  39                         final int prime = 31;
  40                         int result = 1;
  41                         result = prime * result + ((bt == null) ? 0 : bt.hashCode());
  42                         return result;
  43                 }
  44                 @Override
  45                 public boolean equals(Object obj) {
  46                         // I don't know why the default equals generated by Eclipse does not work.
  47                         // instead of relying on bt.equals(other.bt), we have to compare the hashcodes of those objects.
  48                         if (this == obj)
  49                                 return true;
  50                         if (obj == null)
  51                                 return false;
  52                         if (getClass() != obj.getClass())
  53                                 return false;
  54                         BodyTubePresetAdapter other = (BodyTubePresetAdapter) obj;
  55                         if (bt == null) {
  56                                 if (other.bt != null)
  57                                         return false;
  58                         } else if (other.bt == null)
  59                                 return false;
  60                         return bt.hashCode() == other.bt.hashCode();
  61                 }
  62         }
  63
  64         @Override
  65         public int getSize() {
  66                 return presets.size();
  67         }
  68
  69         @Override
  70         public Object getElementAt(int index) {
  71                 if ( index < 0 ) {
  72                         return null;
  73                 }
  74                 return new BodyTubePresetAdapter(presets.get(index));
  75         }
  76
  77         @Override
  78         public void setSelectedItem(Object anItem) {
  79                 BodyTubePresetAdapter selected = (BodyTubePresetAdapter) anItem;
  80                 if ( selected == null ) {
  81                         component.loadPreset(null);
  82                 } else {
  83                         component.loadPreset(selected.bt);
  84                 }
  85         }
  86
  87         @Override
  88         public Object getSelectedItem() {
  89                 ComponentPreset preset = (ComponentPreset) component.getPresetComponent();
  90                 if ( preset == null ) {
  91                         return null;
  92                 } else {
  93                         return new BodyTubePresetAdapter(preset);
  94                 }
  95         }
  96
  97 }