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

Introduction

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

Prototype

public Object[] getVisibleExpandedElements() 

Source Link

Document

Gets the expanded elements that are visible to the user.

Usage

From source file:com.aptana.explorer.internal.ui.FilteringProjectView.java

License:Open Source License

/**
 * Update the in-memory memento for a given project. This update method should be called before saving the memento
 * and before every project switch.//from   w  w w  .  j  a  v a  2 s  . c  om
 * 
 * @param project
 */
protected void updateProjectMementoCache(IProject project) {
    TreeViewer viewer = getCommonViewer();
    if (viewer == null || project == null) {
        return;
    }
    List<String> expanded = new ArrayList<String>();
    List<String> selected = new ArrayList<String>();

    // Save the expansion state
    Object expandedElements[] = viewer.getVisibleExpandedElements();
    if (expandedElements.length > 0) {
        for (int i = 0; i < expandedElements.length; i++) {
            if (expandedElements[i] instanceof IResource) {
                expanded.add(((IResource) expandedElements[i]).getFullPath().toString());
            }
        }
    }
    // Save the selection state
    Object selectedElements[] = ((IStructuredSelection) viewer.getSelection()).toArray();
    if (selectedElements.length > 0) {
        for (int i = 0; i < selectedElements.length; i++) {
            if (selectedElements[i] instanceof IResource) {
                selected.add(((IResource) selectedElements[i]).getFullPath().toString());
            }
        }
    }
    projectExpansions.put(project, expanded);
    projectSelections.put(project, selected);

    // FIXME Need to store filters in a way that we can store the filename search filter too!
    IResource filter = getFilterResource();
    if (filter != null) {
        projectFilters.put(project, filter.getLocation().toPortableString());
    } else {
        projectFilters.remove(project);
    }
}

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

License:Open Source License

/**
 * @see ViewPart#saveState//  w  w w.  jav  a2s. c  o  m
 */
public void saveState(IMemento memento) {
    TreeViewer viewer = getTreeViewer();
    if (viewer == null) {
        if (this.memento != null) {
            memento.putMemento(this.memento);
        }
        return;
    }

    //save sorter
    if (getComparator() != null) {
        memento.putInteger(TAG_SORTER, getComparator().getCriteria());
    } else if (getSorter() != null) {
        memento.putInteger(TAG_SORTER, getSorter().getCriteria());
    }

    //save filters
    String filters[] = getPatternFilter().getPatterns();
    List selectedFilters = Arrays.asList(filters);
    List allFilters = FiltersContentProvider.getDefinedFilters();
    IMemento filtersMem = memento.createChild(TAG_FILTERS);
    for (Iterator iter = allFilters.iterator(); iter.hasNext();) {
        String element = (String) iter.next();
        IMemento child = filtersMem.createChild(TAG_FILTER);
        child.putString(TAG_ELEMENT, element);
        child.putString(TAG_IS_ENABLED, String.valueOf(selectedFilters.contains(element)));
    }

    if (frameList.getCurrentIndex() > 0) {
        //save frame, it's not the "home"/workspace frame
        TreeFrame currentFrame = (TreeFrame) frameList.getCurrentFrame();
        IMemento frameMemento = memento.createChild(TAG_CURRENT_FRAME);
        currentFrame.saveState(frameMemento);
    } else {
        //save visible expanded elements
        Object expandedElements[] = viewer.getVisibleExpandedElements();
        if (expandedElements.length > 0) {
            IMemento expandedMem = memento.createChild(TAG_EXPANDED);
            for (int i = 0; i < expandedElements.length; i++) {
                if (expandedElements[i] instanceof IResource) {
                    IMemento elementMem = expandedMem.createChild(TAG_ELEMENT);
                    elementMem.putString(TAG_PATH, ((IResource) expandedElements[i]).getFullPath().toString());
                }
            }
        }
        //save selection
        Object elements[] = ((IStructuredSelection) viewer.getSelection()).toArray();
        if (elements.length > 0) {
            IMemento selectionMem = memento.createChild(TAG_SELECTION);
            for (int i = 0; i < elements.length; i++) {
                if (elements[i] instanceof IResource) {
                    IMemento elementMem = selectionMem.createChild(TAG_ELEMENT);
                    elementMem.putString(TAG_PATH, ((IResource) elements[i]).getFullPath().toString());
                }
            }
        }
    }

    saveLinkingEnabled(memento);
}

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From source file:org.kalypso.ui.repository.view.RepositoryExplorerPart.java

License:Open Source License

@Override
public void saveState(final IMemento memento) {
    if (m_chooser == null)
        return;/*from  w  ww  . j av a  2 s .  c  o m*/

    final TreeViewer viewer = m_chooser.getViewer();
    if (viewer == null) {
        if (m_memento != null) // Keep the old state;
            memento.putMemento(m_memento);

        return;
    }

    // save list of repositories
    final IMemento repsMem = memento.createChild(RepositoryExplorerPart.TAG_REPOSITORIES);
    final IRepository[] repositories = m_chooser.getRepositoryContainer().getRepositories();
    for (final IRepository repository : repositories) {
        final IMemento child = repsMem.createChild(RepositoryExplorerPart.TAG_REPOSITORY);
        child.putTextData(new RepositoryFactoryConfig(repository).saveState());

        // save properties for that repository
        final IMemento propsMem = child.createChild(RepositoryExplorerPart.TAG_REPOSITORY_PROPS);
        try {
            MementoUtils.saveProperties(propsMem, repository.getProperties());
        } catch (final IOException e) {
            e.printStackTrace();
        }
    }

    // save visible expanded elements
    final Object expandedElements[] = viewer.getVisibleExpandedElements();
    if (expandedElements.length > 0) {
        final IMemento expandedMem = memento.createChild(RepositoryExplorerPart.TAG_EXPANDED);
        for (final Object element : expandedElements)
            if (element instanceof IRepositoryItem) {
                final IMemento elementMem = expandedMem.createChild(RepositoryExplorerPart.TAG_ELEMENT);
                final String id = ((IRepositoryItem) element).getIdentifier();
                elementMem.putString(RepositoryExplorerPart.TAG_IDENFITIER, id);
            }
    }
}

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