Example usage for org.eclipse.jface.viewers ITreeContentProvider hasChildren

Introduction

In this page you can find the example usage for org.eclipse.jface.viewers ITreeContentProvider hasChildren.

Prototype

public boolean hasChildren(Object element);

Source Link

Document

Returns whether the given element has children.

Usage

From source file:ca.uvic.cs.tagsea.tests.TagCollectionTests.java

License:Open Source License

public void testContentProvider() throws Exception {
    TagCollection tagCollection = new TagCollection();
    tagCollection.add("chris(child1)", TestPlatformFactory.instance().getMarker(), null);
    tagCollection.add("chris(child2)", TestPlatformFactory.instance().getMarker(), null);
    tagCollection.add("chris2", TestPlatformFactory.instance().getMarker(), null);

    ITreeContentProvider provider = tagCollection;
    Tag[] roots = (Tag[]) provider.getElements(new Object());
    assertEquals(2, roots.length);//from   w w  w.j  a  v  a  2 s.c om
    assertTrue(provider.hasChildren(roots[0]));
    assertEquals(2, provider.getChildren(roots[0]).length);
    assertTrue(!provider.hasChildren(roots[1]));
}

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From source file:ch.elexis.core.ui.dialogs.DiagnoseSelektor.java

License:Open Source License

private void addDiagnoses(ITreeContentProvider tcp, Object[] roots) {
    for (Object object : roots) {
        if (tcp.hasChildren(object)) {
            addDiagnoses(tcp, tcp.getChildren(object));
        } else {//from   w w w .  ja v a2s .c  o m
            diagnoses.add((IDiagnose) object);
        }
    }
}

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From source file:com.aptana.ide.views.outline.UnifiedOutlineProvider.java

License:Open Source License

/**
 * @see org.eclipse.jface.viewers.ITreeContentProvider#hasChildren(java.lang.Object)
 *//*ww w  .  j a v  a2 s  . c o  m*/
public boolean hasChildren(Object element) {
    boolean result = false;

    switchLanguage(element);

    if (this._currentProviders != null) {
        ITreeContentProvider contentProvider = this._currentProviders.contentProvider;

        if (contentProvider != null) {
            result = contentProvider.hasChildren(element);
        }
    }

    return result;
}

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From source file:com.aptana.index.core.ui.views.IndexViewContentProvider.java

License:Open Source License

public boolean hasChildren(Object element) {
    List<ITreeContentProvider> providers = this.getProcessors();
    boolean result = false;

    for (ITreeContentProvider provider : providers) {
        if (provider.hasChildren(element)) {
            result = true;//from  www .j  a  v a 2 s  . c  o m
            break;
        }
    }

    return result;
}

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From source file:com.google.gwt.eclipse.oophm.breadcrumbs.BreadcrumbViewer.java

License:Open Source License

/**
 * Set selection to the next or previous element if possible.
 * /* w  w w.ja  va 2s .co  m*/
 * @param next <code>true</code> if the next element should be selected,
 *          otherwise the previous one will be selected
 */
void doTraverse(boolean next) {
    if (fSelectedItem == null)
        return;

    int index = fBreadcrumbItems.indexOf(fSelectedItem);
    if (next) {
        if (index == fBreadcrumbItems.size() - 1) {
            BreadcrumbItem current = (BreadcrumbItem) fBreadcrumbItems.get(index);

            ITreeContentProvider contentProvider = (ITreeContentProvider) getContentProvider();
            if (!contentProvider.hasChildren(current.getData()))
                return;

            current.openDropDownMenu();
            current.getDropDownShell().setFocus();
        } else {
            BreadcrumbItem nextItem = (BreadcrumbItem) fBreadcrumbItems.get(index + 1);
            selectItem(nextItem);
        }
    } else {
        if (index == 1) {
            BreadcrumbItem root = (BreadcrumbItem) fBreadcrumbItems.get(0);
            root.openDropDownMenu();
            root.getDropDownShell().setFocus();
        } else {
            selectItem((BreadcrumbItem) fBreadcrumbItems.get(index - 1));
        }
    }
}

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From source file:com.ibm.research.tours.fx.dialogs.SelectViewDialog.java

License:Open Source License

/**
 * Return whether or not there are less than two views in the list.
 * //from   w w  w .  jav  a2  s  .co  m
 * @param tree
 * @return <code>true</code> if there are less than two views in the list.
 */
private boolean hasAtMostOneView(TreeViewer tree) {
    ITreeContentProvider contentProvider = (ITreeContentProvider) tree.getContentProvider();
    Object[] children = contentProvider.getElements(tree.getInput());

    if (children.length <= 1) {
        if (children.length == 0) {
            return true;
        }
        return !contentProvider.hasChildren(children[0]);
    }
    return false;
}

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From source file:com.liferay.ide.server.ui.PluginsCustomContentProvider.java

License:Open Source License

public boolean hasChildren(Object element, boolean currentHasChildren) {
    if (element instanceof ModuleServer) {
        INavigatorContentService service = getConfig().getService();
        INavigatorContentExtension extension = getConfig().getExtension();

        INavigatorContentDescriptor descriptor = extension.getDescriptor();

        INavigatorContentExtension serverContent = service
                .getContentExtensionById(descriptor.getSuppressedExtensionId());

        ITreeContentProvider contentProvider = serverContent.getContentProvider();

        return contentProvider.hasChildren(element);
    } else if (element instanceof PluginsContent) {
        if (((PluginsContent) element).getSize() > 0) {
            return true;
        }//ww w .jav  a 2s .  co  m

        return false;
    }

    return false;
}

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From source file:com.siteview.mde.internal.ui.shared.CachedCheckboxTreeViewer.java

License:Open Source License

/**
 * If the element is a leaf node, it is added to the result collection.  If the element has
 * children, this method will recursively look at the children and add any visible leaf nodes
 * to the collection.// w  ww . j a  v a2  s . c o  m
 * 
 * @param element element to check
 * @param contentProvider tree content provider to check for children
 * @param result collection to collect leaf nodes in
 */
private void addFilteredChildren(Object element, ITreeContentProvider contentProvider, Collection result) {
    if (!contentProvider.hasChildren(element)) {
        result.add(element);
    } else {
        Object[] visibleChildren = getFilteredChildren(element);
        for (int i = 0; i < visibleChildren.length; i++) {
            addFilteredChildren(visibleChildren[i], contentProvider, result);
        }
    }
}

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From source file:de.quamoco.adaptation.wizard.util.elementsselection.filter.NamedElementPatternFilter.java

License:Apache License

/**
 * Asks the {@link ITreeContentProvider} of the viewer if
 * the passed element has children and returns false if so.
 * @param viewer the viewer/*from   w ww . j  a v  a 2  s  .  co  m*/
 * @param element the element
 * @return negation of {@link ITreeContentProvider#hasChildren(Object)
 */
protected boolean isLeaf(Viewer viewer, NamedElement element) {
    ITreeContentProvider contentProvider = (ITreeContentProvider) ((StructuredViewer) viewer)
            .getContentProvider();
    return !contentProvider.hasChildren(element);
}

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From source file:de.quamoco.adaptation.wizard.util.modelattributes.filter.AttributesViewerFilter.java

License:Apache License

/**
 * Returns true for a given {@link QualityModel} iff it fulfills either {@link #isLeafMatch(QualityModel)}
 * or any of its (subsequent) children./*from   ww  w  .ja v a2  s. com*/
 */
@Override
public boolean select(Viewer viewer, Object parentElement, Object element) {
    if (element instanceof QualityModel) {
        QualityModel qualityModel = (QualityModel) element;

        if (isLeafMatch(qualityModel)) {
            return true;
        } else { // check paths below
            TreeViewer treeViewer = (TreeViewer) viewer;
            ITreeContentProvider contentProvider = (ITreeContentProvider) treeViewer.getContentProvider();

            // Check if an element in the children tree fulfills the criteria.
            // If yes return true because then element is on the path to this
            // element and the hierarchy shall be maintained
            if (contentProvider.hasChildren(element)) {
                for (Object child : contentProvider.getChildren(element)) {
                    if (select(viewer, element, child)) {
                        return true;
                    }
                }
            }
        }

    }
    return false;
}

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