Examples of org.eclipse.swt.widgets.TreeItem.indexOf()

org.eclipse.swt.widgets.TreeItem.indexOf()
Searches the receiver's list starting at the first item (index 0) until an item is found that is equal to the argument, and returns the index of that item. If no item is found, returns -1. @param item the search item @return the index of the item @exception IllegalArgumentException
- ERROR_NULL_ARGUMENT - if the item is null
- ERROR_INVALID_ARGUMENT - if the item has been disposed
@exception SWTException
- ERROR_WIDGET_DISPOSED - if the receiver has been disposed
- ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
@since 3.1


    TreeItem parent = fItem.getParentItem();


    /* Item is not Root-Leveld */
    if (isSet(parent)) {
      int index = parent.indexOf(fItem);


      if (parent.getItemCount() > index + 1)
        return new WidgetTreeNode(parent.getItem(index + 1), fViewer);


      return null;

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    TreeItem parent = fItem.getParentItem();


    /* Item is not Root-Leveld */
    if (isSet(parent)) {
      int index = parent.indexOf(fItem);


      if (index > 0)
        return new WidgetTreeNode(parent.getItem(index - 1), fViewer);


      return null;

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      TreeItem[] items = treeViewer.getTree().getSelection();
      if (items.length > 0) {
        selection = items[0];
        TreeItem parent = selection.getParentItem();
        if (parent != null) {
          int index = parent.indexOf(selection);
          if (index > 0) {
            prevItem = parent.getItem(index - 1);
          }
          if (index + 1 < parent.getItemCount()) {
            nextItem = parent.getItem(index + 1);

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