diff options
Diffstat (limited to 'common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/model/value/swing/AbstractTreeModel.java')
-rw-r--r-- | common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/model/value/swing/AbstractTreeModel.java | 216 |
1 files changed, 0 insertions, 216 deletions
diff --git a/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/model/value/swing/AbstractTreeModel.java b/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/model/value/swing/AbstractTreeModel.java deleted file mode 100644 index 0a3ab42d06..0000000000 --- a/common/plugins/org.eclipse.jpt.common.utility/src/org/eclipse/jpt/common/utility/internal/model/value/swing/AbstractTreeModel.java +++ /dev/null @@ -1,216 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2007, 2008 Oracle. 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: - * Oracle - initial API and implementation - ******************************************************************************/ -package org.eclipse.jpt.common.utility.internal.model.value.swing; - -import java.io.Serializable; -import javax.swing.event.EventListenerList; -import javax.swing.event.TreeModelEvent; -import javax.swing.event.TreeModelListener; -import javax.swing.tree.TreeModel; - -/** - * Abstract class that should have been provided by the JDK - * (à la javax.swing.AbstractListModel). This class provides: - * - support for a collection of listeners - * - a number of convenience methods for firing events for those listeners - */ -public abstract class AbstractTreeModel - implements TreeModel, Serializable -{ - /** Our listeners. */ - protected final EventListenerList listenerList; - - - // ********** constructors/initialization ********** - - protected AbstractTreeModel() { - super(); - this.listenerList = new EventListenerList(); - } - - - // ********** partial TreeModel implementation ********** - - public void addTreeModelListener(TreeModelListener l) { - this.listenerList.add(TreeModelListener.class, l); - } - - public void removeTreeModelListener(TreeModelListener l) { - this.listenerList.remove(TreeModelListener.class, l); - } - - - // ********** queries ********** - - /** - * Return the model's current collection of listeners. - * (There seems to be a pattern of making this type of method public; - * although it should probably be protected....) - */ - public TreeModelListener[] treeModelListeners() { - return this.listenerList.getListeners(TreeModelListener.class); - } - - /** - * Return whether this model has no listeners. - */ - protected boolean hasNoTreeModelListeners() { - return this.listenerList.getListenerCount(TreeModelListener.class) == 0; - } - - /** - * Return whether this model has any listeners. - */ - protected boolean hasTreeModelListeners() { - return ! this.hasNoTreeModelListeners(); - } - - - // ********** behavior ********** - - /** - * Notify listeners of a model change. - * A significant property of the nodes changed, but the nodes themselves - * are still the same objects. - * @see javax.swing.event.TreeModelEvent - * @see javax.swing.event.TreeModelListener - */ - protected void fireTreeNodesChanged(Object[] path, int[] childIndices, Object[] children) { - // guaranteed to return a non-null array - Object[] listeners = this.listenerList.getListenerList(); - TreeModelEvent event = null; - // process the listeners last to first, notifying - // those that are interested in this event - for (int i = listeners.length-2; i>=0; i-=2) { - if (listeners[i]==TreeModelListener.class) { - // lazily create the event - if (event == null) { - event = new TreeModelEvent(this, path, childIndices, children); - } - ((TreeModelListener) listeners[i+1]).treeNodesChanged(event); - } - } - } - - - /** - * Notify listeners of a model change. - * A significant property of the node changed, but the node itself is the same object. - * @see javax.swing.event.TreeModelEvent - * @see javax.swing.event.TreeModelListener - */ - protected void fireTreeNodeChanged(Object[] path, int childIndex, Object child) { - this.fireTreeNodesChanged(path, new int[] {childIndex}, new Object[] {child}); - } - - /** - * Notify listeners of a model change. - * A significant property of the root changed, but the root itself is the same object. - * @see javax.swing.event.TreeModelEvent - * @see javax.swing.event.TreeModelListener - */ - protected void fireTreeRootChanged(Object root) { - this.fireTreeNodesChanged(new Object[] {root}, null, null); - } - - /** - * Notify listeners of a model change. - * @see javax.swing.event.TreeModelEvent - * @see javax.swing.event.TreeModelListener - */ - protected void fireTreeNodesInserted(Object[] path, int[] childIndices, Object[] children) { - // guaranteed to return a non-null array - Object[] listeners = this.listenerList.getListenerList(); - TreeModelEvent event = null; - // process the listeners last to first, notifying - // those that are interested in this event - for (int i = listeners.length-2; i>=0; i-=2) { - if (listeners[i]==TreeModelListener.class) { - // lazily create the event - if (event == null) { - event = new TreeModelEvent(this, path, childIndices, children); - } - ((TreeModelListener) listeners[i+1]).treeNodesInserted(event); - } - } - } - - /** - * Notify listeners of a model change. - * @see javax.swing.event.TreeModelEvent - * @see javax.swing.event.TreeModelListener - */ - protected void fireTreeNodeInserted(Object[] path, int childIndex, Object child) { - this.fireTreeNodesInserted(path, new int[] {childIndex}, new Object[] {child}); - } - - /** - * Notify listeners of a model change. - * @see javax.swing.event.TreeModelEvent - * @see javax.swing.event.TreeModelListener - */ - protected void fireTreeNodesRemoved(Object[] path, int[] childIndices, Object[] children) { - // guaranteed to return a non-null array - Object[] listeners = this.listenerList.getListenerList(); - TreeModelEvent event = null; - // process the listeners last to first, notifying - // those that are interested in this event - for (int i = listeners.length-2; i>=0; i-=2) { - if (listeners[i]==TreeModelListener.class) { - // lazily create the event - if (event == null) { - event = new TreeModelEvent(this, path, childIndices, children); - } - ((TreeModelListener) listeners[i+1]).treeNodesRemoved(event); - } - } - } - - /** - * Notify listeners of a model change. - * @see javax.swing.event.TreeModelEvent - * @see javax.swing.event.TreeModelListener - */ - protected void fireTreeNodeRemoved(Object[] path, int childIndex, Object child) { - this.fireTreeNodesRemoved(path, new int[] {childIndex}, new Object[] {child}); - } - - /** - * Notify listeners of a model change. - * @see javax.swing.event.TreeModelEvent - * @see javax.swing.event.TreeModelListener - */ - protected void fireTreeStructureChanged(Object[] path) { - // guaranteed to return a non-null array - Object[] listeners = this.listenerList.getListenerList(); - TreeModelEvent event = null; - // process the listeners last to first, notifying - // those that are interested in this event - for (int i = listeners.length-2; i>=0; i-=2) { - if (listeners[i]==TreeModelListener.class) { - // lazily create the event - if (event == null) { - event = new TreeModelEvent(this, path); - } - ((TreeModelListener) listeners[i+1]).treeStructureChanged(event); - } - } - } - - /** - * Notify listeners of a model change. - * @see javax.swing.event.TreeModelEvent - * @see javax.swing.event.TreeModelListener - */ - protected void fireTreeRootReplaced(Object newRoot) { - this.fireTreeStructureChanged(new Object[] {newRoot}); - } - -} |