diff options
Diffstat (limited to 'jaxb/plugins/org.eclipse.jpt.jaxb.ui/src/org/eclipse/jpt/jaxb/ui/internal/wizards/schemagen/CheckboxTreeAndListGroup.java')
| -rw-r--r-- | jaxb/plugins/org.eclipse.jpt.jaxb.ui/src/org/eclipse/jpt/jaxb/ui/internal/wizards/schemagen/CheckboxTreeAndListGroup.java | 856 |
1 files changed, 0 insertions, 856 deletions
diff --git a/jaxb/plugins/org.eclipse.jpt.jaxb.ui/src/org/eclipse/jpt/jaxb/ui/internal/wizards/schemagen/CheckboxTreeAndListGroup.java b/jaxb/plugins/org.eclipse.jpt.jaxb.ui/src/org/eclipse/jpt/jaxb/ui/internal/wizards/schemagen/CheckboxTreeAndListGroup.java deleted file mode 100644 index e551a5e32f..0000000000 --- a/jaxb/plugins/org.eclipse.jpt.jaxb.ui/src/org/eclipse/jpt/jaxb/ui/internal/wizards/schemagen/CheckboxTreeAndListGroup.java +++ /dev/null @@ -1,856 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2000, 2008 IBM Corporation 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: - * IBM Corporation - initial API and implementation - * Code originate from org.eclipse.jdt.internal.ui.jarpackager - *******************************************************************************/ -package org.eclipse.jpt.jaxb.ui.internal.wizards.schemagen; - -import java.util.ArrayList; -import java.util.HashMap; -import java.util.HashSet; -import java.util.Iterator; -import java.util.List; -import java.util.Map; -import java.util.Set; - -import org.eclipse.jface.viewers.CheckStateChangedEvent; -import org.eclipse.jface.viewers.CheckboxTableViewer; -import org.eclipse.jface.viewers.CheckboxTreeViewer; -import org.eclipse.jface.viewers.ICheckStateListener; -import org.eclipse.jface.viewers.ILabelProvider; -import org.eclipse.jface.viewers.ISelection; -import org.eclipse.jface.viewers.ISelectionChangedListener; -import org.eclipse.jface.viewers.IStructuredContentProvider; -import org.eclipse.jface.viewers.IStructuredSelection; -import org.eclipse.jface.viewers.ITreeContentProvider; -import org.eclipse.jface.viewers.ITreeViewerListener; -import org.eclipse.jface.viewers.SelectionChangedEvent; -import org.eclipse.jface.viewers.StructuredSelection; -import org.eclipse.jface.viewers.TreeExpansionEvent; -import org.eclipse.jface.viewers.ViewerComparator; -import org.eclipse.jface.viewers.ViewerFilter; -import org.eclipse.swt.SWT; -import org.eclipse.swt.custom.BusyIndicator; -import org.eclipse.swt.layout.GridData; -import org.eclipse.swt.layout.GridLayout; -import org.eclipse.swt.widgets.Composite; -import org.eclipse.swt.widgets.Table; -import org.eclipse.swt.widgets.Tree; - -/** - * Combines a CheckboxTreeViewer and CheckboxListViewer. - * All viewer selection-driven interactions are handled within this viewer - */ -public class CheckboxTreeAndListGroup implements ICheckStateListener, ISelectionChangedListener, ITreeViewerListener { - - private Object fRoot; - private Object fCurrentTreeSelection; - private List fExpandedTreeNodes= new ArrayList(); - private Map fCheckedStateStore= this.buildCheckedStateStore(); - private List fWhiteCheckedTreeItems= new ArrayList(); - private List fListeners= new ArrayList(); - - private ITreeContentProvider fTreeContentProvider; - private IStructuredContentProvider fListContentProvider; - private ILabelProvider fTreeLabelProvider; - private ILabelProvider fListLabelProvider; - - // widgets - private CheckboxTreeViewer fTreeViewer; - private CheckboxTableViewer fListViewer; - - /** - * Creates an instance of this class. Use this constructor if you wish to specify - * the width and/or height of the combined widget (to only hardcode one of the - * sizing dimensions, specify the other dimension's value as -1) - * @param parent parent composite - * @param rootObject - * @param treeContentProvider - * @param treeLabelProvider - * @param listContentProvider - * @param listLabelProvider - * @param style - * @param width the width - * @param height the height - */ - public CheckboxTreeAndListGroup( - Composite parent, - Object rootObject, - ITreeContentProvider treeContentProvider, - ILabelProvider treeLabelProvider, - IStructuredContentProvider listContentProvider, - ILabelProvider listLabelProvider, - int style, - int width, - int height) { - fRoot= rootObject; - fTreeContentProvider= treeContentProvider; - fListContentProvider= listContentProvider; - fTreeLabelProvider= treeLabelProvider; - fListLabelProvider= listLabelProvider; - createContents(parent, width, height, style); - } - /** - * This method must be called just before this window becomes visible. - */ - public void aboutToOpen() { - determineWhiteCheckedDescendents(fRoot); - checkNewTreeElements(getTreeChildren(fRoot)); - fCurrentTreeSelection= null; - - //select the first element in the list - Object[] elements= getTreeChildren(fRoot); - Object primary= elements.length > 0 ? elements[0] : null; - if (primary != null) { - fTreeViewer.setSelection(new StructuredSelection(primary)); - } - fTreeViewer.getControl().setFocus(); - } - /** - * Adds the passed listener to self's collection of clients - * that listen for changes to element checked states - * - * @param listener ICheckStateListener - */ - public void addCheckStateListener(ICheckStateListener listener) { - fListeners.add(listener); - } - /** - * Adds the receiver and all of it's ancestors to the checkedStateStore if they - * are not already there. - * @param treeElement - */ - private void addToHierarchyToCheckedStore(Object treeElement) { - - // if this tree element is already gray then its ancestors all are as well - if (!fCheckedStateStore.containsKey(treeElement)) - fCheckedStateStore.put(treeElement, new ArrayList()); - - Object parent= fTreeContentProvider.getParent(treeElement); - if (parent != null) - addToHierarchyToCheckedStore(parent); - } - /** - * Returns a boolean indicating whether all children of the passed tree element - * are currently white-checked - * - * @return boolean - * @param treeElement java.lang.Object - */ - protected boolean areAllChildrenWhiteChecked(Object treeElement) { - Object[] children= getTreeChildren(treeElement); - for (int i= 0; i < children.length; ++i) { - if (!fWhiteCheckedTreeItems.contains(children[i])) - return false; - } - - return true; - } - /** - * Returns a boolean indicating whether all list elements associated with - * the passed tree element are currently checked - * - * @return boolean - * @param treeElement java.lang.Object - */ - protected boolean areAllElementsChecked(Object treeElement) { - List checkedElements= (List)fCheckedStateStore.get(treeElement); - if (checkedElements == null) // ie.- tree item not even gray-checked - return false; - - return getListItemsSize(treeElement) == checkedElements.size(); - } - /** - * Iterates through the passed elements which are being realized for the first - * time and check each one in the tree viewer as appropriate - * @param elements - */ - protected void checkNewTreeElements(Object[] elements) { - for (int i= 0; i < elements.length; ++i) { - Object currentElement= elements[i]; - boolean checked= fCheckedStateStore.containsKey(currentElement); - fTreeViewer.setChecked(currentElement, checked); - fTreeViewer.setGrayed( - currentElement, - checked && !fWhiteCheckedTreeItems.contains(currentElement)); - } - } - /** - * An item was checked in one of self's two views. Determine which - * view this occurred in and delegate appropriately - * - * @param event CheckStateChangedEvent - */ - public void checkStateChanged(final CheckStateChangedEvent event) { - - //Potentially long operation - show a busy cursor - BusyIndicator.showWhile(fTreeViewer.getControl().getDisplay(), new Runnable() { - public void run() { - if (event.getCheckable().equals(fTreeViewer)) - treeItemChecked(event.getElement(), event.getChecked()); - else - listItemChecked(event.getElement(), event.getChecked(), true); - - notifyCheckStateChangeListeners(event); - } - }); - } - /** - * Lay out and initialize self's visual components. - * - * @param parent org.eclipse.swt.widgets.Composite - * @param width int - * @param height int - * @param style - */ - protected void createContents( - Composite parent, - int width, - int height, - int style) { - // group pane - Composite composite= new Composite(parent, style); - GridLayout layout= new GridLayout(); - layout.numColumns= 2; - layout.makeColumnsEqualWidth= true; - layout.marginHeight= 0; - layout.marginWidth= 0; - composite.setLayout(layout); - composite.setLayoutData(new GridData(GridData.FILL_BOTH)); - - createTreeViewer(composite, width / 2, height); - createListViewer(composite, width / 2, height); - - initialize(); - } - /** - * Creates this group's list viewer. - * @param parent the parent composite - * @param width the width - * @param height the height - */ - protected void createListViewer(Composite parent, int width, int height) { - fListViewer= CheckboxTableViewer.newCheckList(parent, SWT.BORDER); - fListViewer.setUseHashlookup(true); - GridData data= new GridData(GridData.FILL_BOTH); - data.widthHint= width; - data.heightHint= height; - fListViewer.getTable().setLayoutData(data); - fListViewer.setContentProvider(fListContentProvider); - fListViewer.setLabelProvider(fListLabelProvider); - fListViewer.addCheckStateListener(this); - } - /** - * Creates this group's tree viewer. - * @param parent parent composite - * @param width the width - * @param height the height - */ - protected void createTreeViewer(Composite parent, int width, int height) { - Tree tree= new Tree(parent, SWT.CHECK | SWT.BORDER); - GridData data= new GridData(GridData.FILL_BOTH); - data.widthHint= width; - data.heightHint= height; - tree.setLayoutData(data); - - fTreeViewer= new CheckboxTreeViewer(tree); - fTreeViewer.setUseHashlookup(true); - fTreeViewer.setContentProvider(fTreeContentProvider); - fTreeViewer.setLabelProvider(fTreeLabelProvider); - fTreeViewer.addTreeListener(this); - fTreeViewer.addCheckStateListener(this); - fTreeViewer.addSelectionChangedListener(this); - } - /** - * Returns a boolean indicating whether the passed tree element should be - * at LEAST gray-checked. Note that this method does not consider whether - * it should be white-checked, so a specified tree item which should be - * white-checked will result in a <code>true</code> answer from this method. - * To determine whether a tree item should be white-checked use method - * #determineShouldBeWhiteChecked(Object). - * - * @param treeElement java.lang.Object - * @return boolean - * @see #determineShouldBeWhiteChecked(java.lang.Object) - */ - protected boolean determineShouldBeAtLeastGrayChecked(Object treeElement) { - // if any list items associated with treeElement are checked then it - // retains its gray-checked status regardless of its children - List checked= (List) fCheckedStateStore.get(treeElement); - if (checked != null && (!checked.isEmpty())) - return true; - - // if any children of treeElement are still gray-checked then treeElement - // must remain gray-checked as well - Object[] children= getTreeChildren(treeElement); - for (int i= 0; i < children.length; ++i) { - if (fCheckedStateStore.containsKey(children[i])) - return true; - } - - return false; - } - /** - * Returns a boolean indicating whether the passed tree item should be - * white-checked. - * - * @return boolean - * @param treeElement java.lang.Object - */ - protected boolean determineShouldBeWhiteChecked(Object treeElement) { - return areAllChildrenWhiteChecked(treeElement) - && areAllElementsChecked(treeElement); - } - /** - * Recursively adds appropriate tree elements to the collection of - * known white-checked tree elements. - * - * @param treeElement java.lang.Object - */ - protected void determineWhiteCheckedDescendents(Object treeElement) { - // always go through all children first since their white-checked - // statuses will be needed to determine the white-checked status for - // this tree element - Object[] children= getTreeChildren(treeElement); - for (int i= 0; i < children.length; ++i) - determineWhiteCheckedDescendents(children[i]); - - // now determine the white-checked status for this tree element - if (determineShouldBeWhiteChecked(treeElement)) - setWhiteChecked(treeElement, true); - } - /** - * Causes the tree viewer to expand all its items - */ - public void expandAll() { - fTreeViewer.expandAll(); - } - /** - * Answers a flat collection of all of the checked elements in the - * list portion of self - * - * @return java.util.Vector - */ - public Iterator getAllCheckedListItems() { - Set result= new HashSet(); - Iterator listCollectionsEnum= this.fCheckedStateStore.values().iterator(); - while (listCollectionsEnum.hasNext()) - result.addAll((List)listCollectionsEnum.next()); - return result.iterator(); - } - /** - * Answer a collection of all of the checked elements in the tree portion - * of self - * - * @return java.util.Vector - */ - public Set getAllCheckedTreeItems() { - return new HashSet(fCheckedStateStore.keySet()); - } - /** - * Answers the number of elements that have been checked by the - * user. - * - * @return int - */ - public int getCheckedElementCount() { - return fCheckedStateStore.size(); - } - /** - * Returns a count of the number of list items associated with a - * given tree item. - * - * @return int - * @param treeElement java.lang.Object - */ - protected int getListItemsSize(Object treeElement) { - Object[] elements= getListElements(treeElement); - return elements.length; - } - /** - * Gets the table that displays the folder content - * - * @return the table used to show the list - */ - public Table getTable() { - return fListViewer.getTable(); - } - /** - * Gets the tree that displays the list for a folder - * - * @return the tree used to show the folders - */ - public Tree getTree() { - return fTreeViewer.getTree(); - } - /** - * Adds the given filter to the tree viewer and - * triggers refiltering and resorting of the elements. - * - * @param filter a viewer filter - */ - public void addTreeFilter(ViewerFilter filter) { - fTreeViewer.addFilter(filter); - } - - public void removeTreeFilter(ViewerFilter filter) { - fTreeViewer.removeFilter(filter); - } - - /** - * Adds the given filter to the list viewer and - * triggers refiltering and resorting of the elements. - * - * @param filter a viewer filter - */ - public void addListFilter(ViewerFilter filter) { - fListViewer.addFilter(filter); - } - - /** - * Logically gray-check all ancestors of treeItem by ensuring that they - * appear in the checked table - * @param treeElement - */ - protected void grayCheckHierarchy(Object treeElement) { - - // if this tree element is already gray then its ancestors all are as well - if (fCheckedStateStore.containsKey(treeElement)) - return; // no need to proceed upwards from here - - fCheckedStateStore.put(treeElement, new ArrayList()); - if (determineShouldBeWhiteChecked(treeElement)) { - setWhiteChecked(treeElement, true); - } - Object parent= fTreeContentProvider.getParent(treeElement); - if (parent != null) - grayCheckHierarchy(parent); - } - /** - * Sets the initial checked state of the passed list element to true. - * @param element - */ - public void initialCheckListItem(Object element) { - Object parent= fTreeContentProvider.getParent(element); - fCurrentTreeSelection= parent; - //As this is not done from the UI then set the box for updating from the selection to false - listItemChecked(element, true, false); - updateHierarchy(parent); - } - /** - * Sets the initial checked state of the passed element to true, - * as well as to all of its children and associated list elements - * @param element - */ - public void initialCheckTreeItem(Object element) { - treeItemChecked(element, true); - } - /** - * Initializes this group's viewers after they have been laid out. - */ - protected void initialize() { - fTreeViewer.setInput(fRoot); - } - /** - * Callback that's invoked when the checked status of an item in the list - * is changed by the user. Do not try and update the hierarchy if we are building the - * initial list. - * @param listElement - * @param state - * @param updatingFromSelection - */ - protected void listItemChecked( - Object listElement, - boolean state, - boolean updatingFromSelection) { - List checkedListItems= (List) fCheckedStateStore.get(fCurrentTreeSelection); - - if (state) { - if (checkedListItems == null) { - // since the associated tree item has gone from 0 -> 1 checked - // list items, tree checking may need to be updated - grayCheckHierarchy(fCurrentTreeSelection); - checkedListItems= (List) fCheckedStateStore.get(fCurrentTreeSelection); - } - checkedListItems.add(listElement); - } else { - checkedListItems.remove(listElement); - if (checkedListItems.isEmpty()) { - // since the associated tree item has gone from 1 -> 0 checked - // list items, tree checking may need to be updated - ungrayCheckHierarchy(fCurrentTreeSelection); - } - } - - if (updatingFromSelection) - updateHierarchy(fCurrentTreeSelection); - } - /** - * Notifies all checked state listeners that the passed element has had - * its checked state changed to the passed state - * @param event - */ - protected void notifyCheckStateChangeListeners(CheckStateChangedEvent event) { - Iterator listenersEnum= fListeners.iterator(); - while (listenersEnum.hasNext()) - ((ICheckStateListener) listenersEnum.next()).checkStateChanged(event); - } - /** - *Sets the contents of the list viewer based upon the specified selected - *tree element. This also includes checking the appropriate list items. - * - *@param treeElement java.lang.Object - */ - public void populateListViewer(final Object treeElement) { - if (treeElement == fCurrentTreeSelection) - return; - fCurrentTreeSelection= treeElement; - fListViewer.setInput(treeElement); - List listItemsToCheck= (List) fCheckedStateStore.get(treeElement); - - if (listItemsToCheck != null) { - Iterator listItemsEnum= listItemsToCheck.iterator(); - while (listItemsEnum.hasNext()) - fListViewer.setChecked(listItemsEnum.next(), true); - } - } - /** - * Removes the passed listener from self's collection of clients - * that listen for changes to element checked states - * - * @param listener ICheckStateListener - */ - public void removeCheckStateListener(ICheckStateListener listener) { - fListeners.remove(listener); - } - /** - * Handles the selection of an item in the tree viewer - * - * @param event ISelection - */ - public void selectionChanged(final SelectionChangedEvent event) { - BusyIndicator.showWhile(getTable().getShell().getDisplay(), new Runnable() { - public void run() { - IStructuredSelection selection= (IStructuredSelection) event.getSelection(); - Object selectedElement= selection.getFirstElement(); - if (selectedElement == null) { - fCurrentTreeSelection= null; - fListViewer.setInput(fCurrentTreeSelection); - return; - } - populateListViewer(selectedElement); - } - }); - } - - /** - * Selects or deselect all of the elements in the tree depending on the value of the selection - * boolean. Be sure to update the displayed files as well. - * @param selection - */ - public void setAllSelections(final boolean selection) { - - //Potentially long operation - show a busy cursor - BusyIndicator.showWhile(fTreeViewer.getControl().getDisplay(), new Runnable() { - public void run() { - setTreeChecked(fRoot, selection); - fListViewer.setAllChecked(selection); - } - }); - } - - /** - * Sets the list viewer's providers to those passed - * - * @param contentProvider ITreeContentProvider - * @param labelProvider ILabelProvider - */ - public void setListProviders( - IStructuredContentProvider contentProvider, - ILabelProvider labelProvider) { - fListViewer.setContentProvider(contentProvider); - fListViewer.setLabelProvider(labelProvider); - } - /** - * Sets the sorter that is to be applied to self's list viewer - * @param comparator - */ - public void setListComparator(ViewerComparator comparator) { - fListViewer.setComparator(comparator); - } - /** - * Sets the root of the widget to be new Root. Regenerate all of the tables and lists from this - * value. - * - * @param newRoot - */ - public void setRoot(Object newRoot) { - this.fRoot= newRoot; - initialize(); - } - /** - * Sets the checked state of the passed tree element appropriately, and - * do so recursively to all of its child tree elements as well - * @param treeElement - * @param state - */ - protected void setTreeChecked(Object treeElement, boolean state) { - - if (treeElement.equals(fCurrentTreeSelection)) { - fListViewer.setAllChecked(state); - } - - if (state) { - Object[] listItems= getListElements(treeElement); - List listItemsChecked= new ArrayList(); - for (int i= 0; i < listItems.length; ++i) - listItemsChecked.add(listItems[i]); - - fCheckedStateStore.put(treeElement, listItemsChecked); - } else - fCheckedStateStore.remove(treeElement); - - setWhiteChecked(treeElement, state); - fTreeViewer.setChecked(treeElement, state); - fTreeViewer.setGrayed(treeElement, false); - - // now logically check/uncheck all children as well - Object[] children= getTreeChildren(treeElement); - for (int i= 0; i < children.length; ++i) { - setTreeChecked(children[i], state); - } - } - /** - * Sets the tree viewer's providers to those passed - * - * @param contentProvider ITreeContentProvider - * @param labelProvider ILabelProvider - */ - public void setTreeProviders( - ITreeContentProvider contentProvider, - ILabelProvider labelProvider) { - fTreeViewer.setContentProvider(contentProvider); - fTreeViewer.setLabelProvider(labelProvider); - } - /** - * Sets the sorter that is to be applied to self's tree viewer - * @param sorter - */ - public void setTreeComparator(ViewerComparator sorter) { - fTreeViewer.setComparator(sorter); - } - /** - * Adjusts the collection of references to white-checked tree elements appropriately. - * - * @param treeElement java.lang.Object - * @param isWhiteChecked boolean - */ - protected void setWhiteChecked(Object treeElement, boolean isWhiteChecked) { - if (isWhiteChecked) { - if (!fWhiteCheckedTreeItems.contains(treeElement)) - fWhiteCheckedTreeItems.add(treeElement); - } else - fWhiteCheckedTreeItems.remove(treeElement); - } - /** - * Handle the collapsing of an element in a tree viewer - * @param event - */ - public void treeCollapsed(TreeExpansionEvent event) { - // We don't need to do anything with this - } - - /** - * Handles the expansionsion of an element in a tree viewer - * @param event - */ - public void treeExpanded(TreeExpansionEvent event) { - - Object item= event.getElement(); - - // First see if the children need to be given their checked state at all. If they've - // already been realized then this won't be necessary - if (!fExpandedTreeNodes.contains(item)) { - fExpandedTreeNodes.add(item); - checkNewTreeElements(getTreeChildren(item)); - } - } - - /** - * Callback that's invoked when the checked status of an item in the tree - * is changed by the user. - * @param treeElement - * @param state - */ - protected void treeItemChecked(Object treeElement, boolean state) { - - // recursively adjust all child tree elements appropriately - setTreeChecked(treeElement, state); - - Object parent= fTreeContentProvider.getParent(treeElement); - if (parent == null) - return; - - // now update upwards in the tree hierarchy - if (state) - grayCheckHierarchy(parent); - else - ungrayCheckHierarchy(parent); - - updateHierarchy(treeElement); - } - /** - * Logically un-gray-check all ancestors of treeItem iff appropriate. - * @param treeElement - */ - protected void ungrayCheckHierarchy(Object treeElement) { - if (!determineShouldBeAtLeastGrayChecked(treeElement)) - fCheckedStateStore.remove(treeElement); - - Object parent= fTreeContentProvider.getParent(treeElement); - if (parent != null) - ungrayCheckHierarchy(parent); - } - /** - * Sets the checked state of self and all ancestors appropriately - * @param treeElement - */ - protected void updateHierarchy(Object treeElement) { - - boolean whiteChecked= determineShouldBeWhiteChecked(treeElement); - boolean shouldBeAtLeastGray= determineShouldBeAtLeastGrayChecked(treeElement); - - fTreeViewer.setChecked(treeElement, whiteChecked || shouldBeAtLeastGray); - setWhiteChecked(treeElement, whiteChecked); - if (whiteChecked) - fTreeViewer.setGrayed(treeElement, false); - else - fTreeViewer.setGrayed(treeElement, shouldBeAtLeastGray); - - // proceed up the tree element hierarchy - Object parent= fTreeContentProvider.getParent(treeElement); - if (parent != null) { - updateHierarchy(parent); - } - } - /** - * Update the selections of the tree elements in items to reflect the new - * selections provided. - * - * @param items with keys of Object (the tree element) and values of List (the selected - * list elements). - */ - public void updateSelections(final Map items) { - - //Potentially long operation - show a busy cursor - BusyIndicator.showWhile(fTreeViewer.getControl().getDisplay(), new Runnable() { - public void run() { - handleUpdateSelection(items); - } - }); - } - /** - * Returns the result of running the given elements through the filters. - * @param filters - * - * @param elements the elements to filter - * @return only the elements which all filters accept - */ - protected Object[] filter(ViewerFilter[] filters, Object[] elements) { - if (filters != null) { - ArrayList filtered = new ArrayList(elements.length); - for (int i = 0; i < elements.length; i++) { - boolean add = true; - for (int j = 0; j < filters.length; j++) { - add = filters[j].select(null, null, elements[i]); - if (!add) - break; - } - if (add) - filtered.add(elements[i]); - } - return filtered.toArray(); - } - return elements; - } - - private Object[] getTreeChildren(Object element) { - return filter(fTreeViewer.getFilters(), fTreeContentProvider.getChildren(element)); - } - - private Object[] getListElements(Object element) { - return filter(fListViewer.getFilters(), fListContentProvider.getElements(element)); - } - - public Set getWhiteCheckedTreeItems() { - return new HashSet(fWhiteCheckedTreeItems); - } - - private HashMap buildCheckedStateStore() { - return new HashMap(9); - } - - private void handleUpdateSelection(Map items) { - Iterator keyIterator= items.keySet().iterator(); - - //Update the store before the hierarchy to prevent updating parents before all of the children are done - while (keyIterator.hasNext()) { - Object key= keyIterator.next(); - //Replace the items in the checked state store with those from the supplied items - List selections= (List) items.get(key); - if (selections.size() == 0) - //If it is empty remove it from the list - fCheckedStateStore.remove(key); - else { - fCheckedStateStore.put(key, selections); - // proceed up the tree element hierarchy - Object parent= fTreeContentProvider.getParent(key); - if (parent != null) { - addToHierarchyToCheckedStore(parent); - } - } - } - - //Now update hierarchies - keyIterator= items.keySet().iterator(); - - while (keyIterator.hasNext()) { - Object key= keyIterator.next(); - updateHierarchy(key); - if (fCurrentTreeSelection != null && fCurrentTreeSelection.equals(key)) { - fListViewer.setAllChecked(false); - fListViewer.setCheckedElements(((List) items.get(key)).toArray()); - } - } - } - - /** - * Checks if an element is grey checked. - * @param object - * @return if an element is grey checked. - */ - public boolean isTreeItemGreyChecked(Object object) { - return fTreeViewer.getGrayed(object); - } - - /** - * For a given element, expand its chidren to a level. - * @param object - * @param level - */ - public void expandTreeToLevel(Object object, int level) { - fTreeViewer.expandToLevel(object, level); - } - /** - * @param selection - */ - public void setTreeSelection(ISelection selection) { - fTreeViewer.setSelection(selection); - } -}
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