Examples of org.eclipse.swt.widgets.TreeItem

org.eclipse.swt.widgets.TreeItem
ipse.org/swt/snippets/#tree">Tree, TreeItem, TreeColumn snippets @see Sample code and further information @noextend This class is not intended to be subclassed by clients.

    }
  }


  private void onMouseMove(Event event) {
    Point p = new Point(event.x, event.y);
    TreeItem item = fCustomTree.getControl().getItem(p);


    /* Problem / Group hovered - reset */
    if (item == null || item.isDisposed() || item.getData() instanceof EntityGroup) {
      if (fShowsHandCursor && !fCustomTree.getControl().isDisposed()) {
        fCustomTree.getControl().setCursor(null);
        fShowsHandCursor = false;
      }
      return;

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  public void adjustScrollPosition() {
    Tree tree = fViewer.getTree();
    int itemCount = tree.getItemCount();
    if (itemCount > 0) {
      if ((fNewsSorter.getSortBy() == NewsColumn.DATE || fNewsSorter.getSortBy() == NewsColumn.PUBLISHED || fNewsSorter.getSortBy() == NewsColumn.MODIFIED || fNewsSorter.getSortBy() == NewsColumn.RECEIVED) && fNewsSorter.isAscending()) {
        TreeItem item = tree.getItem(itemCount - 1);
        int childCount = item.getItemCount();
        if (childCount != 0)
          item = item.getItem(childCount - 1);
        tree.showItem(item);
      } else
        tree.setTopItem(tree.getItem(0));
    }
  }

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     */
    @Override
    protected Object getToolTipArea(Event event) {
      Tree tree = (Tree) event.widget;
      Point point = new Point(event.x, event.y);
      TreeItem item = tree.getItem(point);


      /* Only valid for Feed Column */
      if (item != null) {
        int feedIndex = indexOf(tree, NewsColumn.FEED);
        if (feedIndex >= 0 && item.getBounds(feedIndex).contains(point))
          return super.getToolTipArea(event);
      }


      return null;
    }

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  private void fixOrderAfterDelete() {
    List<ILabel> labelsToSave = new ArrayList<ILabel>();


    TreeItem[] items = fViewer.getTree().getItems();
    for (int i = 0; i < items.length; i++) {
      TreeItem item = items[i];
      ILabel label = (ILabel) item.getData();
      label.setOrder(i);


      labelsToSave.add(label);
    }

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     */
    @Override
    protected Object getToolTipArea(Event event) {
      Tree tree = (Tree) event.widget;
      Point point = new Point(event.x, event.y);
      TreeItem item = tree.getItem(point);


      /* Only valid for Feed Column */
      if (item != null) {
        if (item.getBounds(COL_FEED).contains(point))
          return super.getToolTipArea(event);
      }


      return null;
    }

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    /* Update Checks on Selection */
    fViewer.getTree().addSelectionListener(new SelectionAdapter() {
      @Override
      public void widgetSelected(SelectionEvent e) {
        if (e.detail == SWT.CHECK) {
          TreeItem item = (TreeItem) e.item;
          setChildsChecked((IFolderChild) item.getData(), item.getChecked(), true);


          if (!item.getChecked())
            setParentsChecked((IFolderChild) item.getData(), false);
        }
      }
    });


    /* Update Checks on Expand */

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  private void expandNewsTableViewerGroups(boolean delayRedraw, ISelection oldSelection) {
    TreeViewer viewer = fNewsTableControl.getViewer();
    Tree tree = (Tree) viewer.getControl();


    /* Remember TopItem if required */
    TreeItem topItem = oldSelection.isEmpty() ? tree.getTopItem() : null;


    /* Expand All & Restore Selection with redraw false */
    if (delayRedraw)
      tree.getParent().setRedraw(false);
    try {

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            boolean hasFocus = fViewer.getTree().setFocus();
            boolean textChanged = !fInitialText.equals(fFilterText.getText().trim());


            /* Select the first matching Item */
            if (hasFocus && textChanged && fFilterText.getText().trim().length() > 0) {
              TreeItem item = getFirstMatchingItem(fViewer.getTree().getItems());
              if (item != null) {
                fViewer.getTree().setSelection(new TreeItem[] { item });
                ISelection sel = fViewer.getSelection();
                fViewer.setSelection(sel, true);
              }

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    /* For each selected Element */
    Object[] selectedElements = selection.toArray();
    for (Object selectedElement : selectedElements) {
      Widget widget = findItem(selectedElement);
      if (widget instanceof TreeItem) {
        TreeItem item = (TreeItem) widget;
        TreeItemAdapter parent = new TreeItemAdapter(item).getParent();


        int index = parent.indexOf(item);
        minSelectedIndex = Math.min(minSelectedIndex, index);
        if (index == minSelectedIndex)

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      /* Update Checks on Selection */
      fViewer.getTree().addSelectionListener(new SelectionAdapter() {
        @Override
        public void widgetSelected(SelectionEvent e) {
          if (e.detail == SWT.CHECK) {
            TreeItem item = (TreeItem) e.item;
            setChildsChecked((IFolderChild) item.getData(), item.getChecked(), true);


            if (!item.getChecked())
              setParentsChecked((IFolderChild) item.getData(), false);
          }
        }
      });


      /* Update Checks on Expand */

View Full Code Here

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