コード例 #1
0
 @Override
 public void visit(CompoundCriteria obj) {
   preVisitVisitor(obj);
   visitNodes(obj.getCriteria());
   postVisitVisitor(obj);
 }
コード例 #2
0
  private void modifyLanguageObject(
      Object theObject, LanguageObject theNewValue, boolean retainSelection) {
    CoreArgCheck.isNotNull(theNewValue); // should not be null when modifying

    //
    // set the parent object to reflect the change in it's child. parent's can't be undefined
    //

    Object newSelection = StructuredSelection.EMPTY;
    LanguageObject parent = (LanguageObject) contentProvider.getParent(theObject);

    Object newValue = theNewValue;

    if (parent == null) {
      // root language object
      setLanguageObject((LanguageObject) newValue);
      refresh(true);
      newSelection = contentProvider.getRoot();
      expandToLevel(newSelection, ALL_LEVELS);

      if (newSelection instanceof Function) {
        Function function = (Function) newSelection;

        if (function.getArgs().length > 0) {
          newSelection = contentProvider.getChildAt(0, function);
        }
      }
    } else if (parent instanceof Function) {
      // set the arg to new value in parent
      int index = contentProvider.getChildIndex(theObject);

      Expression[] args = ((Function) parent).getArgs();
      args[index] = (Expression) newValue;

      refresh(true);
      expandToLevel(parent, ALL_LEVELS);

      newSelection = contentProvider.getChildAt(index, parent);

      if (!retainSelection) {
        if (newSelection instanceof Function) {
          // if function arg change to be a function, select first function arg
          if (contentProvider.getChildCount(newSelection) > 0) {
            newSelection = contentProvider.getChildAt(0, newSelection);
          }
        } else {
          // select next sibling function arg if exists
          if ((args.length - 1) > index) {
            newSelection = contentProvider.getChildAt(index + 1, parent);
          } else if (index > 0) {
            newSelection = contentProvider.getChildAt(0, parent);
          } else {
            newSelection = contentProvider.getChildAt(index, parent);
          }
        }
      }
    } else if (parent instanceof Criteria) {
      // theLangObj must also be a Criteria
      // since NotCriteria aren't really edited in the editor (their contained criteria is). Need to
      // save the state in order to restore it when modifying
      Criteria newCriteria = (Criteria) newValue;
      int index = contentProvider.getChildIndex(theObject);

      if ((parent instanceof CompoundCriteria) || (parent instanceof NotCriteria)) {
        CompoundCriteria compoundCriteria = null;

        if (parent instanceof CompoundCriteria) {
          compoundCriteria = (CompoundCriteria) parent;
        } else {
          compoundCriteria = (CompoundCriteria) ((NotCriteria) parent).getCriteria();
        }

        List criteriaCollection = compoundCriteria.getCriteria();
        criteriaCollection.set(index, newCriteria);
        refresh(true);

        if (retainSelection) {
          newSelection = criteriaCollection.get(index);
        } else {
          // set selection to next sibling criteria or to the first sibling
          if ((criteriaCollection.size() - 1) > index) {
            newSelection = criteriaCollection.get(index + 1);
          } else if (index > 0) {
            newSelection = criteriaCollection.get(0);
          } else {
            newSelection = contentProvider.getChildAt(index + 1, parent);
          }
        }
      } else {
        CoreArgCheck.isTrue(
            false,
            Util.getString(
                PREFIX + "unexpectedType", // $NON-NLS-1$
                new Object[] {
                  "modifyLanguageObject", //$NON-NLS-1$
                  parent.getClass().getName()
                }));
      }

      expandToLevel(parent, ALL_LEVELS);
    }

    // select next node
    setSelection(
        (newSelection == null) ? StructuredSelection.EMPTY : new StructuredSelection(newSelection));
  }
コード例 #3
0
  private void addUndefinedCriteria(Criteria theCriteria, boolean theAndFlag) {
    CoreArgCheck.isNotNull(theCriteria); // should not be calling if null

    Object newSelection = StructuredSelection.EMPTY;

    if (theCriteria instanceof CompoundCriteria) {
      CompoundCriteria criteria = (CompoundCriteria) theCriteria;
      criteria.addCriteria((Criteria) null);
      refresh(true);
      newSelection = contentProvider.getChildAt((criteria.getCriteriaCount() - 1), criteria);
    } else if (theCriteria instanceof NotCriteria) {
      // the contained Criteria must be a CompoundCriteria
      addUndefinedCriteria(((NotCriteria) theCriteria).getCriteria(), theAndFlag);
    } else if (theCriteria instanceof PredicateCriteria) {
      CompoundCriteria compoundCriteria = new CompoundCriteria();
      compoundCriteria.setOperator((theAndFlag) ? CompoundCriteria.AND : CompoundCriteria.OR);
      compoundCriteria.addCriteria(theCriteria);
      compoundCriteria.addCriteria((Criteria) null);

      // modify parent here
      LanguageObject parent = (LanguageObject) contentProvider.getParent(theCriteria);
      int index = contentProvider.getChildIndex(theCriteria);

      if (parent == null) {
        setLanguageObject(compoundCriteria);
        refresh(true);

        // select undefined criteria
        newSelection = contentProvider.getChildAt(1, contentProvider.getRoot());
        expandToLevel(newSelection, ALL_LEVELS);
      } else if ((parent instanceof NotCriteria) || (parent instanceof CompoundCriteria)) {
        CompoundCriteria criteria = null;

        if (parent instanceof NotCriteria) {
          // then NotCriteria's contained criteria must be a CompoundCriteria
          criteria = (CompoundCriteria) ((NotCriteria) theCriteria).getCriteria();
        } else {
          criteria = (CompoundCriteria) parent;
        }

        List crits = criteria.getCriteria();
        crits.set(index, compoundCriteria);
        refresh(true);

        // select undefined criteria
        newSelection = contentProvider.getChildAt(1, compoundCriteria);
      } else {
        CoreArgCheck.isTrue(
            false,
            Util.getString(
                PREFIX + "unexpectedType", // $NON-NLS-1$
                new Object[] {"addUndefinedCriteria", parent.getClass()})); // $NON-NLS-1$
      }
    }

    // select appropriate tree item
    final Object selection = newSelection;

    Display.getDefault()
        .asyncExec(
            new Runnable() {
              public void run() {
                setSelection(new StructuredSelection(selection));
              }
            });
  }
コード例 #4
0
  private void delete(Object theLangObj) {
    if (canDelete(theLangObj)) {
      boolean doSelect = true;

      //
      // set the parent object to reflect the change in it's child. parent can't be undefined.
      //

      Object newSelection = StructuredSelection.EMPTY;
      LanguageObject parent = (LanguageObject) contentProvider.getParent(theLangObj);

      if (parent == null) {
        // object being delete is root language object
        setLanguageObject(null); // resets undefined count
        refresh(true);
        newSelection = contentProvider.getRoot();
        expandToLevel(newSelection, ALL_LEVELS);
      } else if (parent instanceof Function) {
        // set the arg to null in parent
        int index = contentProvider.getChildIndex(theLangObj);

        Expression[] args = ((Function) parent).getArgs();
        args[index] = null;

        refresh(true);
        newSelection = contentProvider.getChildAt(index, parent);
      } else if (parent instanceof Criteria) {
        if (contentProvider.getChildCount(parent) > 1) {
          CompoundCriteria compoundCriteria = null;

          // parent is either a compound criteria or not criteria
          if (parent instanceof CompoundCriteria) {
            compoundCriteria = (CompoundCriteria) parent;
          } else { // NotCriteria
            NotCriteria notCrit = (NotCriteria) parent;
            Criteria criteria = notCrit.getCriteria();

            // NotCriteria must contain either another NotCriteria or a CompoundCriteria
            while (!(criteria instanceof CompoundCriteria)) {
              // must be a NotCriteria
              criteria = ((NotCriteria) criteria).getCriteria();
            }

            compoundCriteria = (CompoundCriteria) criteria;
          }

          List crits = compoundCriteria.getCriteria();
          int index = contentProvider.getChildIndex(theLangObj);

          // CompoundCriteria has to have at least 2 criteria to be compound. if it has more than 2
          // just delete the selected obj. if there are exactly 2 criteria than this special
          // processing block occurs.
          if (contentProvider.getChildCount(parent) == 2) {
            int siblingIndex = (index == 0) ? 1 : 0;

            // if deleting this node would leave just an undefined node under the parent, delete
            // parent
            if (isUndefined(contentProvider.getChildAt(siblingIndex, parent))) {
              delete(parent);
            } else {
              // sibling is not undefined

              // if deleting an undefined node, delete from parent. this will leave one node
              // under the parent.
              if (isUndefined(theLangObj)) {
                crits.remove(index);
                // selection taken care of below in block checking for size of 1
              } else {
                // replace deleted node with undefined node
                crits.set(index, (Criteria) null);
                refresh(true);
                newSelection = contentProvider.getChildAt(index, parent);
              }
            }
          } else {
            // just remove from parent
            crits.remove(index);
            refresh(true);
            newSelection = parent;
          }

          if (crits.size() == 1) {
            // need to modify parent node with the child (refresh done there)
            modifyLanguageObject(
                parent, (LanguageObject) contentProvider.getChildAt(0, parent), false);
            doSelect = false; // modify does select
          }
        }
      }

      if (doSelect) {
        final Object selection = newSelection;

        Display.getDefault()
            .asyncExec(
                new Runnable() {
                  public void run() {
                    setSelection(new StructuredSelection(selection));
                  }
                });
      }
    }
  }