Example usage for org.eclipse.jface.viewers TreeViewer getExpandedElements

Introduction

In this page you can find the example usage for org.eclipse.jface.viewers TreeViewer getExpandedElements.

Prototype

public Object[] getExpandedElements() 

Source Link

Document

Returns a list of elements corresponding to expanded nodes in this viewer's tree, including currently hidden ones that are marked as expanded but are under a collapsed ancestor.

Usage

From source file:net.sourceforge.texlipse.outline.TexOutlinePage.java

License:Open Source License

/**
 * Updates the outline with new content. Called by TexDocumentModel
 * through the editor. Saves the visible state of the outline,
 * sets the new content and restores the state.
 *
 * @param input the new outline input//  w w  w  .  j ava2 s  . co  m
 */
public void update(TexOutlineInput input) {
    this.input = input;

    TreeViewer viewer = getTreeViewer();
    if (viewer != null) {

        Control control = viewer.getControl();
        if (control != null && !control.isDisposed()) {
            control.setRedraw(false);

            //First try smart update
            boolean succUpdate = ((TexContentProvider) viewer.getContentProvider()).updateElements(viewer,
                    input.getRootNodes());
            if (!succUpdate) {
                viewer.getTree().deselectAll();
                // save viewer state
                Object[] expandedElements = viewer.getExpandedElements();
                // set new input
                viewer.setInput(input.getRootNodes());
                /*viewer.getContentProvider().inputChanged(viewer, null, input.getRootNodes());
                viewer.refresh(true);*/
                // restore viewer state
                viewer.setExpandedElements(expandedElements);
            }
            control.setRedraw(true);

            // disable the refresh button, enable context stuff
            outlineActions.get(ACTION_UPDATE).setEnabled(false);
            outlineActions.get(ACTION_COPY).setEnabled(true);
            outlineActions.get(ACTION_CUT).setEnabled(true);
            outlineActions.get(ACTION_PASTE).setEnabled(true);
            outlineActions.get(ACTION_DELETE).setEnabled(true);
        }
    }
}

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From source file:net.sourceforge.veditor.editor.HdlContentOutlinePage.java

License:Open Source License

/**
 * Searches for the given element and if found, makes it visible
 * @param element/*w  w w.j  a va  2  s  .c  om*/
 */
public void showElement(OutlineElement element) {
    if (element == null)
        return;
    TreeViewer viewer = getTreeViewer();
    viewer.reveal(element);
    TreeItem[] treeItems = viewer.getTree().getItems();

    viewer.getControl().setRedraw(false);
    Object[] expandedElements = viewer.getExpandedElements();
    //force all the elements to be scanned in
    viewer.expandAll();
    viewer.setExpandedElements(expandedElements);
    viewer.getControl().setRedraw(true);

    for (TreeItem item : treeItems) {
        TreeItem target = findTreeItem(item, element);
        if (target != null) {
            viewer.getTree().setSelection(target);
            viewer.reveal(element);
            break;
        }
    }

}

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From source file:net.sourceforge.veditor.editor.HdlContentOutlinePage.java

License:Open Source License

public void update() {
    TreeViewer viewer = getTreeViewer();

    if (viewer != null) {
        if (enableSort)
            viewer.setSorter(new Sorter());
        else/*from   w  ww.j  a  va2 s.com*/
            viewer.setSorter(null);

        Control control = viewer.getControl();
        if (control != null && !control.isDisposed()) {
            Object expanded[] = viewer.getExpandedElements();
            control.setRedraw(false);
            viewer.setInput(editor.getDocument());
            if (expanded.length > 0) {
                viewer.setExpandedElements(expanded);
            } else {
                viewer.collapseAll();
            }
            control.setRedraw(true);
        }
    }
}

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From source file:nz.co.senanque.madura.ruleeditor.editor.RuleOutlinePage.java

License:Open Source License

public void processChange(final Document doc) {
    if (doc == null) {
        RulesBuilder.buildFile(m_input, this);
        log.debug("Just invoked full build");
        return;//  w w  w.  j  av a  2s .co m
    }
    final Tree tree = (Tree) getControl();
    final TreeViewer treeView = getTreeViewer();
    try {
        Runnable runnable = new Runnable() {
            public void run() {
                getControl().setRedraw(false);
                try {
                    String s = doc.get();
                    Object expanded[] = treeView.getExpandedElements();
                    tree.removeAll();
                    SchemaParser schemaParser = Utils.getXSDFile(m_input);
                    if (schemaParser == null) {
                        return;
                    }

                    ITypedRegion r[] = doc.computePartitioning(0, s.length());
                    AdaptableList o = ((AdaptableList) getContentOutline(r, s, m_input.getName(),
                            m_input.getLocation().toOSString(), schemaParser));
                    treeView.setInput(o);
                    for (int i = 0; i < expanded.length; i++) {
                        int j = o.children.indexOf(expanded[i]);
                        if (j > -1)
                            treeView.setExpandedState(o.children.get(j), true);
                    }
                } catch (Exception e) {
                    e.printStackTrace();
                }
                getControl().setRedraw(true);
                getControl().redraw();
                m_timerStarted = false;
            }
        };
        if (!m_timerStarted) {
            m_timerStarted = true;
            Display.getDefault().timerExec(1000, runnable);
        } else {
            getControl().setRedraw(true);
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
}

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From source file:nz.co.senanque.madura.workfloweditor.editor.WorkflowOutlinePage.java

License:Open Source License

public void processChange(final Document doc) {
    if (doc == null) {
        WorkflowBuilder.buildFile(m_input, this);
        log.debug("Just invoked full build");
        return;//from   www . j a  v  a  2s.  co m
    }
    final Tree tree = (Tree) getControl();
    final TreeViewer treeView = getTreeViewer();
    try {
        Runnable runnable = new Runnable() {
            public void run() {
                getControl().setRedraw(false);
                try {
                    String s = doc.get();
                    Object expanded[] = treeView.getExpandedElements();
                    tree.removeAll();
                    SchemaParser schemaParser = Utils.getXSDFile(m_input);
                    if (schemaParser == null) {
                        return;
                    }

                    ITypedRegion r[] = doc.computePartitioning(0, s.length());
                    AdaptableList o = ((AdaptableList) getContentOutline(r, s, m_input.getName(),
                            m_input.getLocation().toOSString(), schemaParser));
                    treeView.setInput(o);
                    for (int i = 0; i < expanded.length; i++) {
                        int j = o.children.indexOf(expanded[i]);
                        if (j > -1)
                            treeView.setExpandedState(o.children.get(j), true);
                    }
                } catch (Exception e) {
                    e.printStackTrace();
                }
                getControl().setRedraw(true);
                getControl().redraw();
                m_timerStarted = false;
            }
        };
        if (!m_timerStarted) {
            m_timerStarted = true;
            Display.getDefault().timerExec(1000, runnable);
        } else {
            getControl().setRedraw(true);
        }
    } catch (Exception e) {
        e.printStackTrace();
    }
}

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From source file:org.cs3.pdt.editor.internal.views.lightweightOutline.NonNaturePrologOutline.java

License:Open Source License

public void setInput(Object information) {
    if (model == null) {
        return;/*  ww w .j a va 2 s .c o m*/
    }

    String fileName = editor.getPrologFileName();

    Map<String, OutlineModuleElement> modules;
    TreeViewer treeViewer = getTreeViewer();
    if (!fileName.isEmpty()) {
        Object[] expandedElements = null;
        try {
            modules = PDTOutlineQuery.getProgramElementsForFile(fileName);
            model.update(modules, fileName);

            expandedElements = treeViewer.getExpandedElements();
            treeViewer.setInput(model);
            treeViewer.setAutoExpandLevel(EXPANDING_LEVEL);

        } catch (Exception e) {
            Debug.report(e);
        }
        if (treeViewer != null) {
            treeViewer.refresh();
            if (expandedElements != null && expandedElements.length > 0) {
                treeViewer.setExpandedElements(expandedElements);
            }
        }
    }
}

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From source file:org.ebayopensource.vjet.eclipse.internal.ui.typehierarchy.VjoHierarchyInformationControl.java

License:Open Source License

protected void toggleHierarchy() {
    TreeViewer treeViewer = getTreeViewer();

    treeViewer.getTree().setRedraw(false);

    Object[] expandedElements = treeViewer.getExpandedElements();
    TypeHierarchyContentProvider contentProvider = (TypeHierarchyContentProvider) treeViewer
            .getContentProvider();//from   w ww  . j a  v a 2  s. c  o  m
    treeViewer.setContentProvider(fOtherContentProvider);

    treeViewer.refresh();
    if (fOtherExpandedElements != null) {
        treeViewer.setExpandedElements(fOtherExpandedElements);
    } else {
        treeViewer.expandAll();
    }

    treeViewer.getTree().setRedraw(true);

    fOtherContentProvider = contentProvider;
    fOtherExpandedElements = expandedElements;

    updateStatusFieldText();
}

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From source file:org.eclipse.cdt.internal.ui.cview.CView.java

License:Open Source License

public void setWorkingSet(IWorkingSet workingSet) {
    TreeViewer treeViewer = getViewer();
    Object[] expanded = treeViewer.getExpandedElements();
    ISelection selection = treeViewer.getSelection();

    workingSetFilter.setWorkingSet(workingSet);
    /*/* w  w  w .  java2 s  .  c o m*/
     * if (workingSet != null) { settings.put(STORE_WORKING_SET,
     * workingSet.getName()); } else { settings.put(STORE_WORKING_SET, "");
     * //$NON-NLS-1$ }
     */
    updateTitle();
    treeViewer.refresh();
    treeViewer.setExpandedElements(expanded);
    if (selection.isEmpty() == false && selection instanceof IStructuredSelection) {
        IStructuredSelection structuredSelection = (IStructuredSelection) selection;
        treeViewer.reveal(structuredSelection.getFirstElement());
    }
}

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From source file:org.eclipse.e4.demio.views.nav.ResourceNavigator.java

License:Open Source License

public void setWorkingSet(IWorkingSet workingSet) {
    TreeViewer treeViewer = getTreeViewer();
    Object[] expanded = treeViewer.getExpandedElements();
    ISelection selection = treeViewer.getSelection();

    boolean refreshNeeded = internalSetWorkingSet(workingSet);

    workingSetFilter.setWorkingSet(emptyWorkingSet ? null : workingSet);
    if (workingSet != null) {
        settings.put(STORE_WORKING_SET, workingSet.getName());
    } else {/*  ww  w .j  a v  a  2s.com*/
        settings.put(STORE_WORKING_SET, ""); //$NON-NLS-1$
    }
    updateTitle();
    if (refreshNeeded) {
        treeViewer.refresh();
    }
    treeViewer.setExpandedElements(expanded);
    if (selection.isEmpty() == false && selection instanceof IStructuredSelection) {
        IStructuredSelection structuredSelection = (IStructuredSelection) selection;
        treeViewer.reveal(structuredSelection.getFirstElement());
    }
}

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From source file:org.eclipse.emf.cdo.ui.CDOTreeExpansionAgent.java

License:Open Source License

public CDOTreeExpansionAgent(final CDOView view, final TreeViewer viewer) {
    CheckUtil.checkArg(view, "view");
    CheckUtil.checkArg(viewer, "viewer");

    this.view = view;
    this.viewer = viewer;

    final Tree tree = viewer.getTree();
    if (!tree.isDisposed()) {
        tree.getDisplay().syncExec(new Runnable() {
            public void run() {
                for (Object element : viewer.getExpandedElements()) {
                    addExpandedElement(element);
                }//from w w  w.j  av a 2s. c om

                view.addListener(listener);
                viewer.addTreeListener(listener);
                viewer.getTree().addDisposeListener(listener);
            }
        });
    }
}

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