Example usage for org.eclipse.jface.viewers ITreePathContentProvider getElements

Introduction

In this page you can find the example usage for org.eclipse.jface.viewers ITreePathContentProvider getElements.

Prototype

@Override
public Object[] getElements(Object inputElement);

Source Link

Document

<p> <b>NOTE:</b> The returned array must not contain the given <code>inputElement</code>, since this leads to recursion issues in AbstractTreeViewer (see <a href="https://bugs.eclipse.org/9262">bug 9262</a>).

Usage

From source file:com.jointlogic.breadcrumbs.sampleapp.api.BreadcrumbViewer.java

License:Open Source License

/**
 * Generates the parent chain of the given element.
 * //from   w w  w  .  j a v a  2 s.c o m
 * @param element
 *            element to build the parent chain for
 * @return the first index of an item in fBreadcrumbItems which is not part
 *         of the chain
 */
private void buildItemChain(final Object input) {
    if (this.fBreadcrumbItems.size() > 0) {
        final BreadcrumbItem last = (BreadcrumbItem) this.fBreadcrumbItems
                .get(this.fBreadcrumbItems.size() - 1);
        last.setIsLastItem(false);
    }

    int index = 0;
    boolean updateLayout = false;
    if (input != null) {
        final ITreePathContentProvider contentProvider = (ITreePathContentProvider) getContentProvider();
        TreePath path = new TreePath(new Object[0]);

        // Top level elements need to be retrieved using getElements(), rest
        // using getChildren().
        Object[] children = contentProvider.getElements(input);
        Object element = children != null && children.length != 0 ? children[0] : null;
        while (element != null) {
            path = path.createChildPath(element);

            // All but last item are hidden if the viewer is in a vertical
            // toolbar.
            children = contentProvider.getChildren(path);
            if ((getStyle() & SWT.VERTICAL) == 0 || children == null || children.length == 0) {
                updateLayout = updateOrCreateItem(index++, path, element) || updateLayout;
            }

            if (children != null && children.length != 0) {
                element = children[0];
            } else {
                break;
            }

        }
    }

    BreadcrumbItem last = null;
    if (index <= this.fBreadcrumbItems.size()) {
        last = (BreadcrumbItem) this.fBreadcrumbItems.get(index - 1);
        last.setIsLastItem(true);

    }

    while (index < this.fBreadcrumbItems.size()) {
        updateLayout = true;
        final BreadcrumbItem item = (BreadcrumbItem) this.fBreadcrumbItems
                .remove(this.fBreadcrumbItems.size() - 1);
        if (item.hasFocus() && last != null) {
            last.setFocus(true);
        }
        if (item == this.fSelectedItem) {
            selectItem(null);
        }
        if (item.getData() != null) {
            unmapElement(item.getData());
        }
        item.dispose();
    }

    if (updateLayout) {
        updateSize();
        this.fContainer.layout(true, true);
    }
}

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From source file:org.eclipse.debug.internal.ui.viewers.breadcrumb.BreadcrumbViewer.java

License:Open Source License

/**
 * Generates the parent chain of the given element.
 * @param input element to build the parent chain for
 *///from   ww  w. jav a  2  s  .com
private void buildItemChain(Object input) {
    if (fBreadcrumbItems.size() > 0) {
        BreadcrumbItem last = (BreadcrumbItem) fBreadcrumbItems.get(fBreadcrumbItems.size() - 1);
        last.setIsLastItem(false);
    }

    int index = 0;
    boolean updateLayout = false;
    if (input != null) {
        ITreePathContentProvider contentProvider = (ITreePathContentProvider) getContentProvider();
        TreePath path = new TreePath(new Object[0]);

        // Top level elements need to be retrieved using getElements(), rest 
        // using getChildren().
        Object[] children = contentProvider.getElements(input);
        Object element = children != null && children.length != 0 ? children[0] : null;
        while (element != null) {
            path = path.createChildPath(element);

            // All but last item are hidden if the viewer is in a vertical toolbar.
            children = contentProvider.getChildren(path);
            if ((getStyle() & SWT.VERTICAL) == 0 || children == null || children.length == 0) {
                updateLayout = updateOrCreateItem(index++, path, element) || updateLayout;
            }

            if (children != null && children.length != 0) {
                element = children[0];
            } else {
                break;
            }

        }
    }

    BreadcrumbItem last = null;
    if (index <= fBreadcrumbItems.size()) {
        last = ((BreadcrumbItem) fBreadcrumbItems.get(index - 1));
        last.setIsLastItem(true);
    }

    while (index < fBreadcrumbItems.size()) {
        updateLayout = true;
        BreadcrumbItem item = (BreadcrumbItem) fBreadcrumbItems.remove(fBreadcrumbItems.size() - 1);
        if (item.hasFocus() && last != null) {
            last.setFocus(true);
        }
        if (item == fSelectedItem) {
            selectItem(null);
        }
        if (item.getData() != null)
            unmapElement(item.getData());
        item.dispose();
    }

    if (updateLayout) {
        updateSize();
        fContainer.layout(true, true);
    }
}

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From source file:org.eclipse.swt.nebula.nebface.ctabletreeviewer.CTableTreeViewer.java

License:Open Source License

protected Object[] getRawChildren(Object parent) {
    Object[] result = null;/* w  ww . ja v a 2  s.  co m*/
    TreePath path;
    if (parent instanceof TreePath) {
        path = (TreePath) parent;
        parent = path.getLastSegment();
    } else {
        path = null;
    }
    if (parent != null) {
        IStructuredContentProvider cp = (IStructuredContentProvider) getContentProvider();
        if (cp != null) {
            if (cp instanceof ITreeContentProvider) {
                ITreeContentProvider tcp = (ITreeContentProvider) cp;
                // if Flat, must iteratively get all children and return them as one array
                //   so that the filters and sorters hit every element
                // if NOT Flat (Hierarchical) then only return the direct elements or children
                //   requested - the getSortedChildren method will compile all branches after
                //   being filtered
                if (getCTableTree().isFlat()) {
                    Object[] oa;
                    if (equals(parent, getRoot())) {
                        oa = tcp.getElements(parent);
                    } else {
                        oa = tcp.getChildren(parent);
                    }
                    Set s = new HashSet(oa.length);
                    for (int i = 0; i < oa.length; i++) {
                        s.add(oa[i]);
                        s.addAll(Arrays.asList(getRawChildren(oa[i])));
                    }
                    result = s.isEmpty() ? new Object[0] : s.toArray();
                } else {
                    if (equals(parent, getRoot())) {
                        result = tcp.getElements(parent);
                    } else {
                        result = tcp.getChildren(parent);
                    }
                }
            } else if (cp instanceof ITreePathContentProvider) {
                ITreePathContentProvider tpcp = (ITreePathContentProvider) cp;
                // if Flat, must iteratively get all children and return them as one array
                //   so that the filters and sorters hit every element
                // if NOT Flat (Hierarchical) then only return the direct elements or children
                //   requested - the getSortedChildren method will compile all branches after
                //   being filtered
                if (getCTableTree().isFlat()) {
                    Object[] oa;
                    if (equals(parent, getRoot())) {
                        oa = tpcp.getElements(parent);
                    } else {
                        if (path == null) {
                            // A path was not provided so try and find one
                            Widget w = findItem(parent);
                            if (w instanceof Item) {
                                Item item = (Item) w;
                                path = getTreePathFromItem(item);
                            }
                            if (path == null) {
                                path = new TreePath(new Object[] { parent });
                            }
                        }
                        oa = tpcp.getChildren(path);
                    }
                    Set s = new HashSet(oa.length);
                    for (int i = 0; i < oa.length; i++) {
                        s.add(oa[i]);
                        s.addAll(Arrays.asList(getRawChildren(oa[i])));
                    }
                    result = s.isEmpty() ? new Object[0] : s.toArray();
                } else {
                    if (equals(parent, getRoot())) {
                        result = tpcp.getElements(parent);
                    } else {
                        if (path == null) {
                            // A path was not provided so try and find one
                            Widget w = findItem(parent);
                            if (w instanceof Item) {
                                Item item = (Item) w;
                                path = getTreePathFromItem(item);
                            }
                            if (path == null) {
                                path = new TreePath(new Object[] { parent });
                            }
                        }
                        result = tpcp.getChildren(path);
                    }
                }
            } else {
                result = cp.getElements(parent);
            }
            assertElementsNotNull(result);
        }
    }
    return (result != null) ? result : new Object[0];
}

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From source file:org.neuro4j.studio.debug.ui.views.BreadcrumbViewer.java

License:Apache License

/**
 * Generates the parent chain of the given element.
 * //from   w ww  . java  2s  . c o m
 * @param element
 *        element to build the parent chain for
 * @return the first index of an item in fBreadcrumbItems which is not
 *         part of the chain
 */
private void buildItemChain(Object input) {
    if (fBreadcrumbItems.size() > 0) {
        BreadcrumbItem last = (BreadcrumbItem) fBreadcrumbItems.get(fBreadcrumbItems.size() - 1);
        last.setIsLastItem(false);
    }

    int index = 0;
    boolean updateLayout = false;
    if (input != null) {
        ITreePathContentProvider contentProvider = (ITreePathContentProvider) getContentProvider();
        TreePath path = new TreePath(new Object[0]);

        // Top level elements need to be retrieved using getElements(), rest
        // using getChildren().
        Object[] children = contentProvider.getElements(input);
        Object element = children != null && children.length != 0 ? children[0] : null;
        while (element != null) {
            path = path.createChildPath(element);

            // All but last item are hidden if the viewer is in a vertical toolbar.
            children = contentProvider.getChildren(path);
            if ((getStyle() & SWT.VERTICAL) == 0 || children == null || children.length == 0) {
                updateLayout = updateOrCreateItem(index++, path, element) || updateLayout;
            }

            if (children != null && children.length != 0) {
                element = children[0];
            } else {
                break;
            }

        }
    }

    BreadcrumbItem last = null;
    if (index <= fBreadcrumbItems.size()) {
        last = ((BreadcrumbItem) fBreadcrumbItems.get(index - 1));
        last.setIsLastItem(true);
    }

    while (index < fBreadcrumbItems.size()) {
        updateLayout = true;
        BreadcrumbItem item = (BreadcrumbItem) fBreadcrumbItems.remove(fBreadcrumbItems.size() - 1);
        if (item.hasFocus() && last != null) {
            last.setFocus(true);
        }
        if (item == fSelectedItem) {
            selectItem(null);
        }
        if (item.getData() != null)
            unmapElement(item.getData());
        item.dispose();
    }

    if (updateLayout) {
        updateSize();
        fContainer.layout(true, true);
    }
}

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From source file:org.openscada.ui.breadcrumbs.BreadcrumbViewer.java

License:Open Source License

/**
 * Generates the parent chain of the given element.
 * //from ww  w  .  ja  v  a  2 s . c  om
 * @param element
 *            element to build the parent chain for
 * @return the first index of an item in fBreadcrumbItems which is not part
 *         of the chain
 */
private void buildItemChain(final Object input) {
    if (this.fBreadcrumbItems.size() > 0) {
        final BreadcrumbItem last = (BreadcrumbItem) this.fBreadcrumbItems
                .get(this.fBreadcrumbItems.size() - 1);
        last.setIsLastItem(false);
    }

    int index = 0;
    boolean updateLayout = false;
    if (input != null) {
        final ITreePathContentProvider contentProvider = (ITreePathContentProvider) getContentProvider();
        TreePath path = new TreePath(new Object[0]);

        // Top level elements need to be retrieved using getElements(), rest
        // using getChildren().
        Object[] children = contentProvider.getElements(input);
        Object element = children != null && children.length != 0 ? children[0] : null;
        while (element != null) {
            path = path.createChildPath(element);

            // All but last item are hidden if the viewer is in a vertical
            // toolbar.
            children = contentProvider.getChildren(path);
            if ((getStyle() & SWT.VERTICAL) == 0 || children == null || children.length == 0) {
                updateLayout = updateOrCreateItem(index++, path, element) || updateLayout;
            }

            if (children != null && children.length != 0) {
                element = children[0];
            } else {
                break;
            }

        }
    }

    BreadcrumbItem last = null;
    if (index <= this.fBreadcrumbItems.size()) {
        last = (BreadcrumbItem) this.fBreadcrumbItems.get(index - 1);
        last.setIsLastItem(true);
    }

    while (index < this.fBreadcrumbItems.size()) {
        updateLayout = true;
        final BreadcrumbItem item = (BreadcrumbItem) this.fBreadcrumbItems
                .remove(this.fBreadcrumbItems.size() - 1);
        if (item.hasFocus() && last != null) {
            last.setFocus(true);
        }
        if (item == this.fSelectedItem) {
            selectItem(null);
        }
        if (item.getData() != null) {
            unmapElement(item.getData());
        }
        item.dispose();
    }

    if (updateLayout) {
        updateSize();
        this.fContainer.layout(true, true);
    }
}

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From source file:rabbit.ui.internal.viewers.FilterableTreePathContentProviderTest.java

License:Apache License

private final ForwardingTreePathContentProvider create() {
    ITreePathContentProvider p = mock(ITreePathContentProvider.class);
    given(p.getChildren(Mockito.<TreePath>any())).willReturn(EMPTY_ARRAY);
    given(p.getElements(Mockito.any())).willReturn(EMPTY_ARRAY);
    given(p.hasChildren(Mockito.<TreePath>any())).willReturn(Boolean.FALSE);
    return create(p);
}

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From source file:rabbit.ui.internal.viewers.FilterableTreePathContentProviderTest.java

License:Apache License

private FilterableTreePathContentProvider create(Object input, Object[] elements) {
    ITreePathContentProvider mock = mock(ITreePathContentProvider.class);
    given(mock.getElements(input)).willReturn(elements);
    return create(mock);
}

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