Skip to main content
summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
Diffstat (limited to 'jpa/plugins/org.eclipse.jpt.utility/src/org/eclipse/jpt/utility/internal/model/value/swing/SpinnerModelAdapter.java')
-rw-r--r--jpa/plugins/org.eclipse.jpt.utility/src/org/eclipse/jpt/utility/internal/model/value/swing/SpinnerModelAdapter.java207
1 files changed, 0 insertions, 207 deletions
diff --git a/jpa/plugins/org.eclipse.jpt.utility/src/org/eclipse/jpt/utility/internal/model/value/swing/SpinnerModelAdapter.java b/jpa/plugins/org.eclipse.jpt.utility/src/org/eclipse/jpt/utility/internal/model/value/swing/SpinnerModelAdapter.java
deleted file mode 100644
index c26f18fc90..0000000000
--- a/jpa/plugins/org.eclipse.jpt.utility/src/org/eclipse/jpt/utility/internal/model/value/swing/SpinnerModelAdapter.java
+++ /dev/null
@@ -1,207 +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.utility.internal.model.value.swing;
-
-import javax.swing.AbstractSpinnerModel;
-import javax.swing.SpinnerModel;
-import javax.swing.SpinnerNumberModel;
-import javax.swing.event.ChangeEvent;
-import javax.swing.event.ChangeListener;
-import org.eclipse.jpt.utility.internal.StringTools;
-import org.eclipse.jpt.utility.internal.model.listener.awt.AWTPropertyChangeListenerWrapper;
-import org.eclipse.jpt.utility.model.event.PropertyChangeEvent;
-import org.eclipse.jpt.utility.model.listener.PropertyChangeListener;
-import org.eclipse.jpt.utility.model.value.PropertyValueModel;
-import org.eclipse.jpt.utility.model.value.WritablePropertyValueModel;
-
-/**
- * This javax.swing.SpinnerModel can be used to keep a ChangeListener
- * (e.g. a JSpinner) in synch with a PropertyValueModel that holds a value.
- *
- * Note: it is likely you want to use one of the following classes instead of
- * this one:
- * DateSpinnerModelAdapter
- * NumberSpinnerModelAdapter
- * ListSpinnerModelAdapter
- *
- * NB: This model should only be used for values that have a fairly
- * inexpensive #equals() implementation.
- * @see #synchronizeDelegate(Object)
- */
-public class SpinnerModelAdapter
- extends AbstractSpinnerModel
-{
- /** The delegate spinner model whose behavior we "enhance". */
- protected final SpinnerModel delegate;
-
- /** A listener that allows us to forward any changes made to the delegate spinner model. */
- protected final ChangeListener delegateListener;
-
- /** A value model on the underlying value. */
- protected final WritablePropertyValueModel<Object> valueHolder;
-
- /** A listener that allows us to synchronize with changes made to the underlying value. */
- protected final PropertyChangeListener valueListener;
-
-
- // ********** constructors **********
-
- /**
- * Constructor - the value holder and delegate are required.
- */
- public SpinnerModelAdapter(WritablePropertyValueModel<Object> valueHolder, SpinnerModel delegate) {
- super();
- if (valueHolder == null || delegate == null) {
- throw new NullPointerException();
- }
- this.valueHolder = valueHolder;
- this.delegate = delegate;
- // postpone listening to the underlying value
- // until we have listeners ourselves...
- this.valueListener = this.buildValueListener();
- this.delegateListener = this.buildDelegateListener();
- }
-
- /**
- * Constructor - the value holder is required.
- * This will wrap a simple number spinner model.
- */
- public SpinnerModelAdapter(WritablePropertyValueModel<Object> valueHolder) {
- this(valueHolder, new SpinnerNumberModel());
- }
-
-
- // ********** initialization **********
-
- protected PropertyChangeListener buildValueListener() {
- return new AWTPropertyChangeListenerWrapper(this.buildValueListener_());
- }
-
- protected PropertyChangeListener buildValueListener_() {
- return new PropertyChangeListener() {
- public void propertyChanged(PropertyChangeEvent event) {
- SpinnerModelAdapter.this.valueChanged(event);
- }
- @Override
- public String toString() {
- return "value listener";
- }
- };
- }
-
- /**
- * expand access a bit for inner class
- */
- @Override
- protected void fireStateChanged() {
- super.fireStateChanged();
- }
-
- protected ChangeListener buildDelegateListener() {
- return new ChangeListener() {
- public void stateChanged(ChangeEvent event) {
- // forward the event, with this as the source
- SpinnerModelAdapter.this.fireStateChanged();
- }
- @Override
- public String toString() {
- return "delegate listener";
- }
- };
- }
-
-
- // ********** SpinnerModel implementation **********
-
- public Object getValue() {
- return this.delegate.getValue();
- }
-
- /**
- * Extend to update the underlying value directly.
- * The resulting event will be ignored: @see #synchronizeDelegate(Object).
- */
- public void setValue(Object value) {
- this.delegate.setValue(value);
- this.valueHolder.setValue(value);
- }
-
- public Object getNextValue() {
- return this.delegate.getNextValue();
- }
-
- public Object getPreviousValue() {
- return this.delegate.getPreviousValue();
- }
-
- /**
- * Extend to start listening to the underlying value if necessary.
- */
- @Override
- public void addChangeListener(ChangeListener listener) {
- if (this.listenerList.getListenerCount(ChangeListener.class) == 0) {
- this.delegate.addChangeListener(this.delegateListener);
- this.engageValueHolder();
- }
- super.addChangeListener(listener);
- }
-
- /**
- * Extend to stop listening to the underlying value if appropriate.
- */
- @Override
- public void removeChangeListener(ChangeListener listener) {
- super.removeChangeListener(listener);
- if (this.listenerList.getListenerCount(ChangeListener.class) == 0) {
- this.disengageValueHolder();
- this.delegate.removeChangeListener(this.delegateListener);
- }
- }
-
-
- // ********** behavior **********
-
- /**
- * A third party has modified the underlying value.
- * Synchronize the delegate model accordingly.
- */
- protected void valueChanged(PropertyChangeEvent event) {
- this.synchronizeDelegate(event.getNewValue());
- }
-
- /**
- * Set the delegate's value if it has changed.
- */
- protected void synchronizeDelegate(Object value) {
- // check to see whether the delegate has already been synchronized
- // (via #setValue())
- if ( ! this.delegate.getValue().equals(value)) {
- this.delegate.setValue(value);
- }
- }
-
- protected void engageValueHolder() {
- this.valueHolder.addPropertyChangeListener(PropertyValueModel.VALUE, this.valueListener);
- this.synchronizeDelegate(this.valueHolder.getValue());
- }
-
- protected void disengageValueHolder() {
- this.valueHolder.removePropertyChangeListener(PropertyValueModel.VALUE, this.valueListener);
- }
-
-
- // ********** standard methods **********
-
- @Override
- public String toString() {
- return StringTools.buildToStringFor(this, this.valueHolder);
- }
-
-}

Back to the top