@Override
 public void buildStringForMagic(StringBuilder builder, IMagic magic, Object details) {
   if (magic instanceof ICharm && MartialArtsUtilities.isMartialArtsCharm((ICharm) magic)) {
     MartialArtsLevel level = MartialArtsUtilities.getLevel((ICharm) magic);
     builder.append(resources.getString("CharmTreeView.ToolTip.MartialArtsLevel")); // $NON-NLS-1$
     builder.append(TooltipBuilder.ColonSpace);
     builder.append(resources.getString(level.getId()));
     builder.append(TooltipBuilder.HtmlLineBreak);
   }
 }
 public boolean isAlienCharm(ICharm charm) {
   return !MartialArtsUtilities.isMartialArtsCharm(charm) && isAlienType(charm.getCharacterType());
 }
  public final boolean isLearnable(ICharm charm) {
    if (isAlienCharm(charm)) {
      ICasteType casteType = context.getBasicCharacterContext().getCasteType();
      if (!getCharmTemplate(getNativeCharacterType()).isAllowedAlienCharms(casteType)) {
        return false;
      }
      if (charm.hasAttribute(ICharmData.NOT_ALIEN_LEARNABLE)) {
        return false;
      }
    }
    if (charm.isBlockedByAlternative(context.getMagicCollection())) {
      return false;
    }
    if (MartialArtsUtilities.isMartialArtsCharm(charm)) {
      boolean isSiderealFormCharm =
          MartialArtsUtilities.isFormCharm(charm)
              && MartialArtsUtilities.hasLevel(MartialArtsLevel.Sidereal, charm);
      if (isSiderealFormCharm
          && !arbitrator.isCelestialMartialArtsGroupCompleted(getMartialArtsGroups())) {
        return false;
      }
      if (!getCharmTemplate(getNativeCharacterType())
          .getMartialArtsRules()
          .isCharmAllowed(
              charm,
              context.getCharmContext().getCharmConfiguration(),
              context.getBasicCharacterContext().isExperienced())) {
        return false;
      }
    }
    for (ICharmAttributeRequirement requirement : charm.getAttributeRequirements()) {
      if (!requirement.isFulfilled(getLearnedCharms(true))) {
        return false;
      }
    }
    for (IGenericTrait prerequisite : charm.getPrerequisites()) {
      IGenericTrait prerequisiteTrait =
          context.getTraitCollection().getTrait(prerequisite.getType());
      int prereq = prerequisite.getCurrentValue();
      for (ISpecialCharm specialCharm : getPrerequisiteModifyingCharms())
        if (specialCharm instanceof IPrerequisiteModifyingCharm
            && isLearned(specialCharm.getCharmId()))
          prereq =
              ((IPrerequisiteModifyingCharm) specialCharm)
                  .getTraitModifier(charm, prerequisiteTrait.getType(), prereq);

      if (prerequisiteTrait == null || prereq > prerequisiteTrait.getCurrentValue()) {
        return false;
      }
    }
    IGenericTrait essenceTrait = context.getTraitCollection().getTrait(OtherTraitType.Essence);
    int essencePrereq = charm.getEssence().getCurrentValue();
    for (ISpecialCharm specialCharm : getPrerequisiteModifyingCharms())
      if (specialCharm instanceof IPrerequisiteModifyingCharm
          && isLearned(specialCharm.getCharmId()))
        essencePrereq =
            ((IPrerequisiteModifyingCharm) specialCharm)
                .getTraitModifier(charm, OtherTraitType.Essence, essencePrereq);
    if (essencePrereq > essenceTrait.getCurrentValue()) {
      return false;
    }
    for (ICharm parentCharm : charm.getLearnPrerequisitesCharms(this)) {
      if (!isLearnable(parentCharm)) {
        return false;
      }
    }
    return true;
  }