/*
* ====================================================================
*
* The ObjectStyle Group Software License, Version 1.0
*
* Copyright (c) 2006 The ObjectStyle Group and individual authors of the
* software. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* 3. The end-user documentation included with the redistribution, if any, must
* include the following acknowlegement: "This product includes software
* developed by the ObjectStyle Group (http://objectstyle.org/)." Alternately,
* this acknowlegement may appear in the software itself, if and wherever such
* third-party acknowlegements normally appear.
*
* 4. The names "ObjectStyle Group" and "Cayenne" must not be used to endorse or
* promote products derived from this software without prior written permission.
* For written permission, please contact andrus@objectstyle.org.
*
* 5. Products derived from this software may not be called "ObjectStyle" nor
* may "ObjectStyle" appear in their names without prior written permission of
* the ObjectStyle Group.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* OBJECTSTYLE GROUP OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
* ====================================================================
*
* This software consists of voluntary contributions made by many individuals on
* behalf of the ObjectStyle Group. For more information on the ObjectStyle
* Group, please see <http://objectstyle.org/>.
*
*/
package org.objectstyle.wolips.eomodeler.editors.entityIndex;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import java.beans.PropertyChangeSupport;
import org.eclipse.core.databinding.DataBindingContext;
import org.eclipse.jface.dialogs.MessageDialog;
import org.eclipse.jface.viewers.ComboViewer;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.ListViewer;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.eclipse.jface.viewers.StructuredSelection;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.SelectionListener;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Combo;
import org.eclipse.swt.widgets.Composite;
import org.objectstyle.wolips.baseforplugins.util.ComparisonUtils;
import org.objectstyle.wolips.eomodeler.Messages;
import org.objectstyle.wolips.eomodeler.core.model.AbstractEOArgument;
import org.objectstyle.wolips.eomodeler.core.model.EOAttribute;
import org.objectstyle.wolips.eomodeler.core.model.EOEntity;
import org.objectstyle.wolips.eomodeler.core.model.EOEntityIndex;
import org.objectstyle.wolips.eomodeler.core.utils.IPropertyChangeSource;
import org.objectstyle.wolips.eomodeler.editors.attributes.EOAttributesContentProvider;
import org.objectstyle.wolips.eomodeler.editors.attributes.EOAttributesLabelProvider;
import org.objectstyle.wolips.eomodeler.utils.AddRemoveButtonGroup;
import org.objectstyle.wolips.eomodeler.utils.ComboViewerBinding;
public class EOEntityIndexAttributesEditor extends Composite implements IPropertyChangeSource {
private EOEntityIndex _entityIndex;
private ComboViewer _attributesComboViewer;
private ListViewer _entityIndexListViewer;
private AddRemoveButtonGroup _addRemoveButtonGroup;
//
// private AttributesListener _attributesListener;
//
// private EOEntityIndexAttributesListener _entityIndexAttributesListener;
private ButtonUpdateListener _buttonUpdateListener;
private EOAttribute _selectedAttribute;
private DataBindingContext _dataBindingContext;
private ComboViewerBinding _selectedAttributeBinding;
private PropertyChangeSupport _propertyChangeSupport;
public EOEntityIndexAttributesEditor(Composite parent, int style) {
super(parent, style);
_propertyChangeSupport = new PropertyChangeSupport(this);
setBackground(parent.getBackground());
// _attributesListener = new AttributesListener();
_buttonUpdateListener = new ButtonUpdateListener();
GridLayout layout = new GridLayout();
setLayout(layout);
_entityIndexListViewer = new ListViewer(this, SWT.BORDER | SWT.FLAT | SWT.MULTI);
_entityIndexListViewer.setContentProvider(new EOEntityIndexAttributesContentProvider());
_entityIndexListViewer.setLabelProvider(new EOAttributesLabelProvider(new String[] { AbstractEOArgument.NAME }));
GridData attributeListLayoutData = new GridData(GridData.FILL_BOTH);
attributeListLayoutData.heightHint = 100;
_entityIndexListViewer.getList().setLayoutData(attributeListLayoutData);
_entityIndexListViewer.addSelectionChangedListener(_buttonUpdateListener);
Combo attributesCombo = new Combo(this, SWT.BORDER | SWT.FLAT | SWT.READ_ONLY);
_attributesComboViewer = new ComboViewer(attributesCombo);
_attributesComboViewer.setLabelProvider(new EOAttributesLabelProvider(new String[] { AbstractEOArgument.NAME }));
_attributesComboViewer.setContentProvider(new EOAttributesContentProvider());
GridData attributesComboLayoutData = new GridData(GridData.FILL_HORIZONTAL);
attributesCombo.setLayoutData(attributesComboLayoutData);
_addRemoveButtonGroup = new AddRemoveButtonGroup(this, new AddAttributeHandler(), new RemoveAttributesHandler());
}
public void addPropertyChangeListener(PropertyChangeListener listener) {
_propertyChangeSupport.addPropertyChangeListener(listener);
}
public void addPropertyChangeListener(String propertyName, PropertyChangeListener listener) {
_propertyChangeSupport.addPropertyChangeListener(propertyName, listener);
}
public void removePropertyChangeListener(PropertyChangeListener listener) {
_propertyChangeSupport.removePropertyChangeListener(listener);
}
public void removePropertyChangeListener(String propertyName, PropertyChangeListener listener) {
_propertyChangeSupport.removePropertyChangeListener(propertyName, listener);
}
public void setSelectedAttribute(EOAttribute selectedAttribute) {
EOAttribute oldAttribute = _selectedAttribute;
_selectedAttribute = selectedAttribute;
_propertyChangeSupport.firePropertyChange("selectedAttribute", oldAttribute, selectedAttribute);
}
public EOAttribute getSelectedAttribute() {
return _selectedAttribute;
}
public void setEntityIndex(EOEntityIndex entityIndex) {
if (!ComparisonUtils.equals(entityIndex, _entityIndex)) {
disposeBindings();
_entityIndex = entityIndex;
if (_entityIndex != null) {
_selectedAttribute = null;
_dataBindingContext = new DataBindingContext();
//_dataBindingContext.bindValue(ViewersObservables.observeSingleSelection(_attributesComboViewer), BeansObservables.observeValue(this, "selectedAttribute"), null, null);
_selectedAttributeBinding = new ComboViewerBinding(_attributesComboViewer, this, "selectedAttribute", null, null, null);
updateAttributes();
updateButtons();
}
}
}
protected void updateButtons() {
boolean removeEnabled = !_entityIndexListViewer.getSelection().isEmpty();
_addRemoveButtonGroup.setRemoveEnabled(removeEnabled);
}
protected void updateAttributes() {
if (_entityIndexListViewer != null) {
_entityIndexListViewer.setInput(_entityIndex);
_attributesComboViewer.setInput(_entityIndex.getEntity());
}
}
protected void addSelectedAttribute() {
if (_selectedAttribute != null) {
_entityIndex.addAttribute(_selectedAttribute);
_entityIndexListViewer.setSelection(new StructuredSelection(_selectedAttribute));
updateAttributes();
}
}
protected void removeSelectedAttributes() {
Object[] selectedAttributes = ((IStructuredSelection) _entityIndexListViewer.getSelection()).toArray();
if (selectedAttributes.length > 0) {
boolean confirmed = MessageDialog.openConfirm(getShell(), Messages.getString("EOEntityIndexBasicEditorSection.removeAttributesTitle"), Messages.getString("EOEntityIndexBasicEditorSection.removeAttributesMessage"));
if (confirmed) {
for (int attributeNum = 0; attributeNum < selectedAttributes.length; attributeNum++) {
EOAttribute attribute = (EOAttribute) selectedAttributes[attributeNum];
_entityIndex.removeAttribute(attribute, true);
}
updateAttributes();
}
}
}
public void disposeBindings() {
if (_entityIndex != null) {
_dataBindingContext.dispose();
_selectedAttributeBinding.dispose();
}
}
public void setEnabled(boolean _enabled) {
super.setEnabled(_enabled);
_entityIndexListViewer.getList().setEnabled(_enabled);
updateButtons();
}
public void dispose() {
super.dispose();
disposeBindings();
}
protected class AttributesListener implements PropertyChangeListener {
public void propertyChange(PropertyChangeEvent _event) {
String propertyName = _event.getPropertyName();
if (propertyName.equals(EOEntity.ATTRIBUTE)) {
EOEntityIndexAttributesEditor.this.updateAttributes();
} else if (propertyName.equals(EOEntity.ATTRIBUTES)) {
EOEntityIndexAttributesEditor.this.updateAttributes();
}
}
}
protected class EntityIndexAttributesListener implements PropertyChangeListener {
public void propertyChange(PropertyChangeEvent _event) {
String propertyName = _event.getPropertyName();
if (propertyName.equals(EOEntityIndex.ATTRIBUTES)) {
EOEntityIndexAttributesEditor.this.updateAttributes();
}
}
}
protected class ButtonUpdateListener implements ISelectionChangedListener {
public void selectionChanged(SelectionChangedEvent _event) {
EOEntityIndexAttributesEditor.this.updateButtons();
}
}
protected class AddAttributeHandler implements SelectionListener {
public void widgetDefaultSelected(SelectionEvent _e) {
widgetSelected(_e);
}
public void widgetSelected(SelectionEvent _e) {
EOEntityIndexAttributesEditor.this.addSelectedAttribute();
}
}
protected class RemoveAttributesHandler implements SelectionListener {
public void widgetDefaultSelected(SelectionEvent _e) {
widgetSelected(_e);
}
public void widgetSelected(SelectionEvent _e) {
EOEntityIndexAttributesEditor.this.removeSelectedAttributes();
}
}
}