/*
* ====================================================================
*
* 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
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*
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* 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,
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* ====================================================================
*
* 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/>.
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package org.objectstyle.wolips.eomodeler.editors.fetchspec;
import java.util.Iterator;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.jface.viewers.TreeViewer;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.events.SelectionListener;
import org.eclipse.swt.layout.FormLayout;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.ui.IWorkbenchPart;
import org.eclipse.ui.views.properties.tabbed.AbstractPropertySection;
import org.eclipse.ui.views.properties.tabbed.TabbedPropertySheetPage;
import org.objectstyle.wolips.baseforplugins.util.ComparisonUtils;
import org.objectstyle.wolips.eomodeler.core.model.EOFetchSpecification;
import org.objectstyle.wolips.eomodeler.core.model.EORelationship;
import org.objectstyle.wolips.eomodeler.core.model.EORelationshipPath;
import org.objectstyle.wolips.eomodeler.outline.EOEntityTreeViewUpdater;
import org.objectstyle.wolips.eomodeler.outline.EOModelOutlineContentProvider;
import org.objectstyle.wolips.eomodeler.utils.AddRemoveButtonGroup;
import org.objectstyle.wolips.eomodeler.utils.FormUtils;
import org.objectstyle.wolips.eomodeler.utils.TableRefreshPropertyListener;
import org.objectstyle.wolips.eomodeler.utils.TableUtils;
public class EOFetchSpecPrefetchingEditorSection extends AbstractPropertySection implements ISelectionChangedListener {
private EOFetchSpecification myFetchSpecification;
private TreeViewer myModelTreeViewer;
private TableViewer myPrefetchKeyPathsTableViewer;
private AddRemoveButtonGroup myAddRemoveButtonGroup;
private EOEntityTreeViewUpdater myEntityTreeViewUpdater;
private TableRefreshPropertyListener myPrefetchKeyPathsChangedRefresher;
public EOFetchSpecPrefetchingEditorSection() {
// DO NOTHING
}
@Override
public boolean shouldUseExtraSpace() {
return true;
}
public void createControls(Composite _parent, TabbedPropertySheetPage _tabbedPropertySheetPage) {
super.createControls(_parent, _tabbedPropertySheetPage);
Composite form = getWidgetFactory().createPlainComposite(_parent, SWT.NONE);
FormLayout formLayout = new FormLayout();
form.setLayout(formLayout);
Composite topForm = FormUtils.createForm(getWidgetFactory(), form, 1);
myModelTreeViewer = new TreeViewer(topForm);
GridData modelTreeLayoutData = new GridData(GridData.FILL_BOTH);
modelTreeLayoutData.heightHint = 100;
myModelTreeViewer.getTree().setLayoutData(modelTreeLayoutData);
myEntityTreeViewUpdater = new EOEntityTreeViewUpdater(myModelTreeViewer, new EOModelOutlineContentProvider(true, false, true, false, false, false, false, true));
myModelTreeViewer.addSelectionChangedListener(this);
myPrefetchKeyPathsTableViewer = TableUtils.createTableViewer(topForm, "EOFetchSpecification", EOPrefetchingKeyPathsConstants.COLUMNS, new PrefetchingKeyPathsContentProvider(), new PrefetchingKeyPathsLabelProvider(EOPrefetchingKeyPathsConstants.COLUMNS), new PrefetchingKeyPathsViewerSorter(EOPrefetchingKeyPathsConstants.COLUMNS));
GridData prefetchKeyPathsTableLayoutData = new GridData(GridData.FILL_BOTH);
prefetchKeyPathsTableLayoutData.heightHint = 100;
myPrefetchKeyPathsTableViewer.getTable().setLayoutData(prefetchKeyPathsTableLayoutData);
myPrefetchKeyPathsTableViewer.addSelectionChangedListener(this);
myPrefetchKeyPathsChangedRefresher = new TableRefreshPropertyListener("PrefetchKeyPathsChanged", myPrefetchKeyPathsTableViewer);
myAddRemoveButtonGroup = new AddRemoveButtonGroup(topForm, new AddPrefetchKeyPathHandler(), new RemovePrefetchKeyPathHandler());
myAddRemoveButtonGroup.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
}
public void setInput(IWorkbenchPart part, ISelection selection) {
if (ComparisonUtils.equals(selection, getSelection())) {
return;
}
super.setInput(part, selection);
disposeBindings();
Object selectedObject = ((IStructuredSelection) selection).getFirstElement();
myFetchSpecification = (EOFetchSpecification) selectedObject;
if (myFetchSpecification != null) {
myFetchSpecification.addPropertyChangeListener(EOFetchSpecification.PREFETCHING_RELATIONSHIP_KEY_PATHS, myPrefetchKeyPathsChangedRefresher);
myEntityTreeViewUpdater.setEntity(myFetchSpecification.getEntity());
myPrefetchKeyPathsTableViewer.setInput(myFetchSpecification);
TableUtils.packTableColumns(myPrefetchKeyPathsTableViewer);
updateButtonsEnabled();
}
}
protected void disposeBindings() {
if (myFetchSpecification != null) {
myFetchSpecification.removePropertyChangeListener(EOFetchSpecification.PREFETCHING_RELATIONSHIP_KEY_PATHS, myPrefetchKeyPathsChangedRefresher);
}
}
public void dispose() {
super.dispose();
disposeBindings();
}
public void addPrefetchKeyPath() {
IStructuredSelection selection = (IStructuredSelection) myModelTreeViewer.getSelection();
Object selectedObject = selection.getFirstElement();
String path;
if (selectedObject instanceof EORelationshipPath) {
path = ((EORelationshipPath) selectedObject).toKeyPath();
} else if (selectedObject instanceof EORelationship) {
path = ((EORelationship) selectedObject).getName();
} else {
path = null;
}
if (path != null) {
myFetchSpecification.addPrefetchingRelationshipKeyPath(path, true);
TableUtils.packTableColumns(myPrefetchKeyPathsTableViewer);
}
}
public void removePrefetchKeyPath() {
IStructuredSelection selection = (IStructuredSelection) myPrefetchKeyPathsTableViewer.getSelection();
Iterator selectedObjectsIter = selection.toList().iterator();
while (selectedObjectsIter.hasNext()) {
String prefetchKeyPath = (String) selectedObjectsIter.next();
myFetchSpecification.removePrefetchingRelationshipKeyPath(prefetchKeyPath, true);
}
}
public void updateButtonsEnabled() {
myAddRemoveButtonGroup.setAddEnabled(!myModelTreeViewer.getSelection().isEmpty());
myAddRemoveButtonGroup.setRemoveEnabled(!myPrefetchKeyPathsTableViewer.getSelection().isEmpty());
}
public void selectionChanged(SelectionChangedEvent _event) {
updateButtonsEnabled();
}
protected class AddPrefetchKeyPathHandler implements SelectionListener {
public void widgetDefaultSelected(SelectionEvent _e) {
widgetSelected(_e);
}
public void widgetSelected(SelectionEvent _e) {
EOFetchSpecPrefetchingEditorSection.this.addPrefetchKeyPath();
}
}
protected class RemovePrefetchKeyPathHandler implements SelectionListener {
public void widgetDefaultSelected(SelectionEvent _e) {
widgetSelected(_e);
}
public void widgetSelected(SelectionEvent _e) {
EOFetchSpecPrefetchingEditorSection.this.removePrefetchKeyPath();
}
}
}