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Diffstat (limited to 'jpa/plugins/org.eclipse.jpt.ui/src/org/eclipse/jpt/ui/internal/swt/TriStateCheckBoxModelAdapter.java')
-rw-r--r--jpa/plugins/org.eclipse.jpt.ui/src/org/eclipse/jpt/ui/internal/swt/TriStateCheckBoxModelAdapter.java188
1 files changed, 0 insertions, 188 deletions
diff --git a/jpa/plugins/org.eclipse.jpt.ui/src/org/eclipse/jpt/ui/internal/swt/TriStateCheckBoxModelAdapter.java b/jpa/plugins/org.eclipse.jpt.ui/src/org/eclipse/jpt/ui/internal/swt/TriStateCheckBoxModelAdapter.java
deleted file mode 100644
index 1ca8be53e8..0000000000
--- a/jpa/plugins/org.eclipse.jpt.ui/src/org/eclipse/jpt/ui/internal/swt/TriStateCheckBoxModelAdapter.java
+++ /dev/null
@@ -1,188 +0,0 @@
-/*******************************************************************************
- * Copyright (c) 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.ui.internal.swt;
-
-import org.eclipse.core.runtime.Assert;
-import org.eclipse.jpt.ui.internal.listeners.SWTPropertyChangeListenerWrapper;
-import org.eclipse.jpt.ui.internal.widgets.TriStateCheckBox;
-import org.eclipse.jpt.utility.internal.StringTools;
-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;
-import org.eclipse.swt.events.DisposeEvent;
-import org.eclipse.swt.events.DisposeListener;
-import org.eclipse.swt.events.SelectionAdapter;
-import org.eclipse.swt.events.SelectionEvent;
-import org.eclipse.swt.events.SelectionListener;
-
-/**
- * This adapter can be used to keep a tri-state check box in synch with
- * a model Boolean where the value can be <code>null</code>.
- */
-@SuppressWarnings("nls")
-public class TriStateCheckBoxModelAdapter {
-
- /** A value model on the underlying model boolean. */
- protected final WritablePropertyValueModel<Boolean> booleanHolder;
-
- /**
- * A listener that allows us to synchronize the button's selection state with
- * the model boolean.
- */
- protected final PropertyChangeListener booleanChangeListener;
-
- /** The check box/toggle button we synchronize with the model boolean. */
- protected final TriStateCheckBox button;
-
- /**
- * A listener that allows us to synchronize the model boolean with
- * the button's selection state.
- */
- protected final SelectionListener buttonSelectionListener;
-
- /**
- * A listener that allows us to stop listening to stuff when the button
- * is disposed.
- */
- protected final DisposeListener buttonDisposeListener;
-
-
- // ********** static methods **********
-
- /**
- * Adapt the specified boolean to the specified button.
- * If the boolean is null, the button's value will be "partially checked"
- * (i.e. the button will be checked but grayed out).
- */
- public static TriStateCheckBoxModelAdapter adapt(WritablePropertyValueModel<Boolean> booleanHolder, TriStateCheckBox button) {
- return new TriStateCheckBoxModelAdapter(booleanHolder, button);
- }
-
-
- // ********** constructors **********
-
- /**
- * Constructor - the boolean holder and button are required.
- */
- protected TriStateCheckBoxModelAdapter(WritablePropertyValueModel<Boolean> booleanHolder, TriStateCheckBox button) {
- super();
-
- Assert.isNotNull(booleanHolder, "The boolean holder cannot be null");
- Assert.isNotNull(button, "The check box cannot be null");
-
- this.booleanHolder = booleanHolder;
- this.button = button;
-
- this.booleanChangeListener = this.buildBooleanChangeListener();
- this.booleanHolder.addPropertyChangeListener(PropertyValueModel.VALUE, this.booleanChangeListener);
-
- this.buttonDisposeListener = this.buildButtonDisposeListener();
- this.button.addDisposeListener(this.buttonDisposeListener);
-
- this.buttonSelectionListener = this.buildButtonSelectionListener();
- this.button.addSelectionListener(this.buttonSelectionListener);
-
- this.setButtonSelection(this.booleanHolder.getValue());
- }
-
-
- // ********** initialization **********
-
- protected PropertyChangeListener buildBooleanChangeListener() {
- return new SWTPropertyChangeListenerWrapper(this.buildBooleanChangeListener_());
- }
-
- protected PropertyChangeListener buildBooleanChangeListener_() {
- return new PropertyChangeListener() {
- public void propertyChanged(PropertyChangeEvent event) {
- TriStateCheckBoxModelAdapter.this.booleanChanged(event);
- }
- @Override
- public String toString() {
- return "tri-state boolean listener";
- }
- };
- }
-
- protected SelectionListener buildButtonSelectionListener() {
- return new SelectionAdapter() {
- @Override
- public void widgetSelected(SelectionEvent event) {
- TriStateCheckBoxModelAdapter.this.buttonSelected(event);
- }
- @Override
- public String toString() {
- return "tri-state button selection listener";
- }
- };
- }
-
- protected DisposeListener buildButtonDisposeListener() {
- return new DisposeListener() {
- public void widgetDisposed(DisposeEvent event) {
- TriStateCheckBoxModelAdapter.this.buttonDisposed(event);
- }
- @Override
- public String toString() {
- return "tri-state button dispose listener";
- }
- };
- }
-
-
- // ********** behavior **********
-
- /**
- * The model has changed - synchronize the button.
- * If the new model value is null, use the adapter's default value
- * (which is typically false).
- */
- protected void booleanChanged(PropertyChangeEvent event) {
- this.setButtonSelection((Boolean) event.getNewValue());
- }
-
- protected void setButtonSelection(Boolean selection) {
- if (this.button.isDisposed()) {
- return;
- }
- this.button.setSelection(selection);
- }
-
- /**
- * The button has been "selected" - synchronize the model.
- */
- protected void buttonSelected(SelectionEvent event) {
- if (this.button.isDisposed()) {
- return;
- }
- this.booleanHolder.setValue(button.getSelection());
- }
-
-
- // ********** dispose **********
-
- protected void buttonDisposed(DisposeEvent event) {
- // the button is not yet "disposed" when we receive this event
- // so we can still remove our listeners
- this.button.removeSelectionListener(this.buttonSelectionListener);
- this.button.removeDisposeListener(this.buttonDisposeListener);
- this.booleanHolder.removePropertyChangeListener(PropertyValueModel.VALUE, this.booleanChangeListener);
- }
-
-
- // ********** standard methods **********
-
- @Override
- public String toString() {
- return StringTools.buildToStringFor(this, this.booleanHolder);
- }
-
-}

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