diff options
Diffstat (limited to 'target_explorer/plugins/org.eclipse.tcf.te.ui.views/src/org/eclipse/tcf/te/ui/views/internal/ViewExpandingState.java')
-rw-r--r-- | target_explorer/plugins/org.eclipse.tcf.te.ui.views/src/org/eclipse/tcf/te/ui/views/internal/ViewExpandingState.java | 280 |
1 files changed, 140 insertions, 140 deletions
diff --git a/target_explorer/plugins/org.eclipse.tcf.te.ui.views/src/org/eclipse/tcf/te/ui/views/internal/ViewExpandingState.java b/target_explorer/plugins/org.eclipse.tcf.te.ui.views/src/org/eclipse/tcf/te/ui/views/internal/ViewExpandingState.java index 351dcfb93..e2124befe 100644 --- a/target_explorer/plugins/org.eclipse.tcf.te.ui.views/src/org/eclipse/tcf/te/ui/views/internal/ViewExpandingState.java +++ b/target_explorer/plugins/org.eclipse.tcf.te.ui.views/src/org/eclipse/tcf/te/ui/views/internal/ViewExpandingState.java @@ -1,140 +1,140 @@ -/*******************************************************************************
- * Copyright (c) 2012 Wind River Systems, Inc. and others. All rights reserved.
- * This program and the accompanying materials are made available under the terms
- * of the Eclipse Public License v1.0 which accompanies this distribution, and is
- * available at http://www.eclipse.org/legal/epl-v10.html
- *
- * Contributors:
- * Wind River Systems - initial API and implementation
- *******************************************************************************/
-package org.eclipse.tcf.te.ui.views.internal;
-
-import java.util.HashMap;
-import java.util.Map;
-import java.util.UUID;
-
-import org.eclipse.core.runtime.IAdaptable;
-import org.eclipse.core.runtime.Platform;
-import org.eclipse.jface.viewers.TreePath;
-import org.eclipse.ui.IMemento;
-import org.eclipse.ui.IPersistableElement;
-import org.eclipse.ui.navigator.CommonViewer;
-import org.eclipse.ui.navigator.IMementoAware;
-
-/**
- * The class used to save and restore the expanding states of
- * a common viewer in a navigator.
- */
-public class ViewExpandingState implements IMementoAware {
- // The common viewer whose expanding action is to be persisted.
- private CommonViewer viewer;
- /**
- * The constructor.
- */
- public ViewExpandingState(CommonViewer viewer) {
- this.viewer = viewer;
- }
-
- /*
- * (non-Javadoc)
- * @see org.eclipse.ui.navigator.IMementoAware#restoreState(org.eclipse.ui.IMemento)
- */
- @Override
- public void restoreState(IMemento memento) {
- RestoreJob job = new RestoreJob(memento);
- job.addJobChangeListener(new RestoreDone(viewer));
- job.schedule();
- }
-
- /*
- * (non-Javadoc)
- * @see org.eclipse.ui.navigator.IMementoAware#saveState(org.eclipse.ui.IMemento)
- */
- @Override
- public void saveState(IMemento memento) {
- Object[] elements = viewer.getVisibleExpandedElements(); // Do not remember invisible expanded elements.
- Map<Object, UUID> savedElements = new HashMap<Object, UUID>();
- if(elements != null && elements.length > 0) {
- IMemento memExpand = memento.createChild("expanded-elements"); //$NON-NLS-1$
- for(Object element : elements) {
- if(element instanceof IAdaptable) {
- UUID uuid = saveElement(memExpand, (IAdaptable)element);
- if(uuid != null) {
- savedElements.put(element, uuid);
- }
- }
- }
- }
- TreePath[] paths = viewer.getExpandedTreePaths();
- if(paths != null && paths.length > 0) {
- IMemento memExpand = memento.createChild("expanded-paths"); //$NON-NLS-1$
- for(TreePath path : paths) {
- if(isPathVisible(path, savedElements)) {
- savePath(memExpand, path, savedElements);
- }
- }
- }
- }
-
- /**
- * Iterate the path elements and see if all the elements are visible based
- * on the map stored. If all the elements of the path is visible, then the
- * path is visible, or else invisible.
- *
- * @param path The path to be tested.
- * @param visibleElements The visible elements stored as a map.
- * @return true if the path is visible.
- */
- private boolean isPathVisible(TreePath path, Map<Object, UUID> visibleElements) {
- int count = path.getSegmentCount();
- for(int i=0;i<count;i++){
- Object element = path.getSegment(i);
- if(visibleElements.get(element) == null)
- return false;
- }
- return true;
- }
-
- /**
- * Save the path under the specified memento using the element map to find
- * its element based on the referenced uuid.
- *
- * @param memExpand The memento under which to save the path.
- * @param path The path to save.
- * @param savedElements The saved elements.
- */
- private void savePath(IMemento memExpand, TreePath path, Map<Object, UUID> savedElements) {
- IMemento pathElement = memExpand.createChild("path"); //$NON-NLS-1$
- int count = path.getSegmentCount();
- for(int i=0;i<count;i++) {
- Object element = path.getSegment(i);
- UUID uuid = savedElements.get(element);
- pathElement.createChild("element", uuid.toString()); //$NON-NLS-1$
- }
- }
-
- /**
- * Save an element to an element memento under the expanding
- * elements memento. Assign each element with a uuid which
- * serves as a reference id for path elements.
- *
- * @param memExpand The expanding memento.
- * @param element The element to save.
- * @return the uuid of this element, or null if saving failed.
- */
- private UUID saveElement(IMemento memExpand, IAdaptable element) {
- IPersistableElement persistable = (IPersistableElement) element.getAdapter(IPersistableElement.class);
- if(persistable == null) {
- persistable = (IPersistableElement) Platform.getAdapterManager().getAdapter(element, IPersistableElement.class);
- }
- if(persistable != null) {
- UUID uuid = UUID.randomUUID();
- String factoryId = persistable.getFactoryId();
- IMemento memElement = memExpand.createChild("element", uuid.toString()); //$NON-NLS-1$
- memElement.putString("factoryId", factoryId); //$NON-NLS-1$
- persistable.saveState(memElement);
- return uuid;
- }
- return null;
- }
-}
+/******************************************************************************* + * Copyright (c) 2012, 2014 Wind River Systems, Inc. and others. All rights reserved. + * This program and the accompanying materials are made available under the terms + * of the Eclipse Public License v1.0 which accompanies this distribution, and is + * available at http://www.eclipse.org/legal/epl-v10.html + * + * Contributors: + * Wind River Systems - initial API and implementation + *******************************************************************************/ +package org.eclipse.tcf.te.ui.views.internal; + +import java.util.HashMap; +import java.util.Map; +import java.util.UUID; + +import org.eclipse.core.runtime.IAdaptable; +import org.eclipse.core.runtime.Platform; +import org.eclipse.jface.viewers.TreePath; +import org.eclipse.ui.IMemento; +import org.eclipse.ui.IPersistableElement; +import org.eclipse.ui.navigator.CommonViewer; +import org.eclipse.ui.navigator.IMementoAware; + +/** + * The class used to save and restore the expanding states of + * a common viewer in a navigator. + */ +public class ViewExpandingState implements IMementoAware { + // The common viewer whose expanding action is to be persisted. + private CommonViewer viewer; + /** + * The constructor. + */ + public ViewExpandingState(CommonViewer viewer) { + this.viewer = viewer; + } + + /* + * (non-Javadoc) + * @see org.eclipse.ui.navigator.IMementoAware#restoreState(org.eclipse.ui.IMemento) + */ + @Override + public void restoreState(IMemento memento) { + RestoreJob job = new RestoreJob(memento); + job.addJobChangeListener(new RestoreDone(viewer)); + job.schedule(); + } + + /* + * (non-Javadoc) + * @see org.eclipse.ui.navigator.IMementoAware#saveState(org.eclipse.ui.IMemento) + */ + @Override + public void saveState(IMemento memento) { + Object[] elements = viewer.getVisibleExpandedElements(); // Do not remember invisible expanded elements. + Map<Object, UUID> savedElements = new HashMap<Object, UUID>(); + if(elements != null && elements.length > 0) { + IMemento memExpand = memento.createChild("expanded-elements"); //$NON-NLS-1$ + for(Object element : elements) { + if(element instanceof IAdaptable) { + UUID uuid = saveElement(memExpand, (IAdaptable)element); + if(uuid != null) { + savedElements.put(element, uuid); + } + } + } + } + TreePath[] paths = viewer.getExpandedTreePaths(); + if(paths != null && paths.length > 0) { + IMemento memExpand = memento.createChild("expanded-paths"); //$NON-NLS-1$ + for(TreePath path : paths) { + if(isPathVisible(path, savedElements)) { + savePath(memExpand, path, savedElements); + } + } + } + } + + /** + * Iterate the path elements and see if all the elements are visible based + * on the map stored. If all the elements of the path is visible, then the + * path is visible, or else invisible. + * + * @param path The path to be tested. + * @param visibleElements The visible elements stored as a map. + * @return true if the path is visible. + */ + private boolean isPathVisible(TreePath path, Map<Object, UUID> visibleElements) { + int count = path.getSegmentCount(); + for(int i=0;i<count;i++){ + Object element = path.getSegment(i); + if(visibleElements.get(element) == null) + return false; + } + return true; + } + + /** + * Save the path under the specified memento using the element map to find + * its element based on the referenced uuid. + * + * @param memExpand The memento under which to save the path. + * @param path The path to save. + * @param savedElements The saved elements. + */ + private void savePath(IMemento memExpand, TreePath path, Map<Object, UUID> savedElements) { + IMemento pathElement = memExpand.createChild("path"); //$NON-NLS-1$ + int count = path.getSegmentCount(); + for(int i=0;i<count;i++) { + Object element = path.getSegment(i); + UUID uuid = savedElements.get(element); + pathElement.createChild("element", uuid.toString()); //$NON-NLS-1$ + } + } + + /** + * Save an element to an element memento under the expanding + * elements memento. Assign each element with a uuid which + * serves as a reference id for path elements. + * + * @param memExpand The expanding memento. + * @param element The element to save. + * @return the uuid of this element, or null if saving failed. + */ + private UUID saveElement(IMemento memExpand, IAdaptable element) { + IPersistableElement persistable = (IPersistableElement) element.getAdapter(IPersistableElement.class); + if(persistable == null) { + persistable = (IPersistableElement) Platform.getAdapterManager().getAdapter(element, IPersistableElement.class); + } + if(persistable != null) { + UUID uuid = UUID.randomUUID(); + String factoryId = persistable.getFactoryId(); + IMemento memElement = memExpand.createChild("element", uuid.toString()); //$NON-NLS-1$ + memElement.putString("factoryId", factoryId); //$NON-NLS-1$ + persistable.saveState(memElement); + return uuid; + } + return null; + } +} |