Example usage for org.eclipse.jface.viewers ILazyTreeContentProvider getParent

Introduction

In this page you can find the example usage for org.eclipse.jface.viewers ILazyTreeContentProvider getParent.

Prototype

public Object getParent(Object element);

Source Link

Document

Returns the parent for the given element, or null indicating that the parent can't be computed.

Usage

From source file:org.mingy.jsfs.ui.viewer.CTreeComboViewer.java

License:Open Source License

protected Object getParentElement(Object element) {
    boolean oldBusy = isBusy();
    setBusy(true);//  ww  w  . jav  a  2 s. co  m
    try {
        if (contentProviderIsLazy && !contentProviderIsTreeBased && !(element instanceof TreePath)) {
            ILazyTreeContentProvider lazyTreeContentProvider = (ILazyTreeContentProvider) getContentProvider();
            return lazyTreeContentProvider.getParent(element);
        }
        if (contentProviderIsLazy && contentProviderIsTreeBased && !(element instanceof TreePath)) {
            ILazyTreePathContentProvider lazyTreePathContentProvider = (ILazyTreePathContentProvider) getContentProvider();
            TreePath[] parents = lazyTreePathContentProvider.getParents(element);
            if (parents != null && parents.length > 0) {
                return parents[0];
            }
        }
        return super.getParentElement(element);
    } finally {
        setBusy(oldBusy);
    }
}

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