diff options
Diffstat (limited to 'jpa/plugins/org.eclipse.jpt.utility/src/org/eclipse/jpt/utility/internal/model/value/swing/ToggleButtonModelAdapter.java')
| -rw-r--r-- | jpa/plugins/org.eclipse.jpt.utility/src/org/eclipse/jpt/utility/internal/model/value/swing/ToggleButtonModelAdapter.java | 224 |
1 files changed, 0 insertions, 224 deletions
diff --git a/jpa/plugins/org.eclipse.jpt.utility/src/org/eclipse/jpt/utility/internal/model/value/swing/ToggleButtonModelAdapter.java b/jpa/plugins/org.eclipse.jpt.utility/src/org/eclipse/jpt/utility/internal/model/value/swing/ToggleButtonModelAdapter.java deleted file mode 100644 index eb9aa3b617..0000000000 --- a/jpa/plugins/org.eclipse.jpt.utility/src/org/eclipse/jpt/utility/internal/model/value/swing/ToggleButtonModelAdapter.java +++ /dev/null @@ -1,224 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2007, 2010 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 java.awt.event.ActionListener; -import java.awt.event.ItemListener; -import javax.swing.JToggleButton.ToggleButtonModel; -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.ButtonModel can be used to keep a listener - * (e.g. a JCheckBox or a JRadioButton) in synch with a PropertyValueModel - * on a boolean. - */ -public class ToggleButtonModelAdapter - extends ToggleButtonModel -{ - /** - * The default setting for the toggle button; for when the underlying model is null. - * The default [default value] is false (i.e. the toggle button is unchecked/empty). - */ - protected final boolean defaultValue; - - /** A value model on the underlying model boolean. */ - protected final WritablePropertyValueModel<Boolean> booleanHolder; - - /** - * A listener that allows us to synchronize with - * changes made to the underlying model boolean. - */ - protected final PropertyChangeListener booleanChangeListener; - - - // ********** constructors ********** - - /** - * Constructor - the boolean holder is required. - */ - public ToggleButtonModelAdapter(WritablePropertyValueModel<Boolean> booleanHolder, boolean defaultValue) { - super(); - if (booleanHolder == null) { - throw new NullPointerException(); - } - this.booleanHolder = booleanHolder; - this.booleanChangeListener = this.buildBooleanChangeListener(); - // postpone listening to the underlying model - // until we have listeners ourselves... - this.defaultValue = defaultValue; - } - - /** - * Constructor - the boolean holder is required. - * The default value will be false. - */ - public ToggleButtonModelAdapter(WritablePropertyValueModel<Boolean> booleanHolder) { - this(booleanHolder, false); - } - - - // ********** initialization ********** - - protected PropertyChangeListener buildBooleanChangeListener() { - return new AWTPropertyChangeListenerWrapper(this.buildBooleanChangeListener_()); - } - - protected PropertyChangeListener buildBooleanChangeListener_() { - return new PropertyChangeListener() { - public void propertyChanged(PropertyChangeEvent event) { - ToggleButtonModelAdapter.this.booleanChanged(event); - } - @Override - public String toString() { - return "boolean listener"; //$NON-NLS-1$ - } - }; - } - - - // ********** ButtonModel implementation ********** - - /** - * Extend to update the underlying model if necessary. - */ - @Override - public void setSelected(boolean b) { - if (this.isSelected() != b) { // stop the recursion! - super.setSelected(b);//put the super call first, otherwise the following gets called twice - this.booleanHolder.setValue(Boolean.valueOf(b)); - } - } - - /** - * Extend to start listening to the underlying model if necessary. - */ - @Override - public void addActionListener(ActionListener l) { - if (this.hasNoListeners()) { - this.engageModel(); - } - super.addActionListener(l); - } - - /** - * Extend to stop listening to the underlying model if appropriate. - */ - @Override - public void removeActionListener(ActionListener l) { - super.removeActionListener(l); - if (this.hasNoListeners()) { - this.disengageModel(); - } - } - - /** - * Extend to start listening to the underlying model if necessary. - */ - @Override - public void addItemListener(ItemListener l) { - if (this.hasNoListeners()) { - this.engageModel(); - } - super.addItemListener(l); - } - - /** - * Extend to stop listening to the underlying model if appropriate. - */ - @Override - public void removeItemListener(ItemListener l) { - super.removeItemListener(l); - if (this.hasNoListeners()) { - this.disengageModel(); - } - } - - /** - * Extend to start listening to the underlying model if necessary. - */ - @Override - public void addChangeListener(ChangeListener l) { - if (this.hasNoListeners()) { - this.engageModel(); - } - super.addChangeListener(l); - } - - /** - * Extend to stop listening to the underlying model if appropriate. - */ - @Override - public void removeChangeListener(ChangeListener l) { - super.removeChangeListener(l); - if (this.hasNoListeners()) { - this.disengageModel(); - } - } - - - // ********** queries ********** - - /** - * Return whether we have no listeners at all. - */ - protected boolean hasNoListeners() { - return this.listenerList.getListenerCount() == 0; - } - - protected boolean getDefaultValue() { - return this.defaultValue; - } - - - // ********** behavior ********** - - /** - * Synchronize with the specified value. - * If it is null, use the default value (which is typically false). - */ - protected void setSelected(Boolean value) { - if (value == null) { - this.setSelected(this.getDefaultValue()); - } else { - this.setSelected(value.booleanValue()); - } - } - - /** - * The underlying model has changed - synchronize accordingly. - */ - protected void booleanChanged(PropertyChangeEvent event) { - this.setSelected((Boolean) event.getNewValue()); - } - - protected void engageModel() { - this.booleanHolder.addPropertyChangeListener(PropertyValueModel.VALUE, this.booleanChangeListener); - this.setSelected(this.booleanHolder.getValue()); - } - - protected void disengageModel() { - this.booleanHolder.removePropertyChangeListener(PropertyValueModel.VALUE, this.booleanChangeListener); - } - - - // ********** standard methods ********** - - @Override - public String toString() { - return StringTools.buildToStringFor(this, this.booleanHolder); - } - -} |