/*
* ====================================================================
*
* 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.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* and/or other materials provided with the distribution.
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* 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
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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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 org.eclipse.core.databinding.Binding;
import org.eclipse.core.databinding.DataBindingContext;
import org.eclipse.core.databinding.beans.BeansObservables;
import org.eclipse.jface.databinding.swt.SWTObservables;
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.TreeViewer;
import org.eclipse.swt.SWT;
import org.eclipse.swt.custom.CLabel;
import org.eclipse.swt.layout.FormLayout;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Text;
import org.eclipse.ui.IWorkbenchPart;
import org.eclipse.ui.forms.widgets.FormToolkit;
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.Messages;
import org.objectstyle.wolips.eomodeler.core.model.AbstractEOAttributePath;
import org.objectstyle.wolips.eomodeler.core.model.EOFetchSpecification;
import org.objectstyle.wolips.eomodeler.core.model.IEOAttribute;
import org.objectstyle.wolips.eomodeler.outline.EOEntityTreeViewUpdater;
import org.objectstyle.wolips.eomodeler.outline.EOModelOutlineContentProvider;
import org.objectstyle.wolips.eomodeler.utils.FormUtils;
import org.objectstyle.wolips.eomodeler.utils.UglyFocusHackWorkaroundListener;
public class EOFetchSpecQualifierEditorSection extends AbstractPropertySection implements ISelectionChangedListener {
private EOFetchSpecification _fetchSpecification;
private Text _nameText;
private Text _qualifierText;
private TreeViewer _modelTreeViewer;
private EOEntityTreeViewUpdater _entityTreeViewUpdater;
private DataBindingContext _bindingContext;
private CLabel _errorLabel;
public EOFetchSpecQualifierEditorSection() {
// DO NOTHING
}
@Override
public boolean shouldUseExtraSpace() {
return true;
}
public void createControls(Composite parent, TabbedPropertySheetPage tabbedPropertySheetPage) {
super.createControls(parent, tabbedPropertySheetPage);
Composite form = getWidgetFactory().createFlatFormComposite(parent);
FormLayout formLayout = new FormLayout();
form.setLayout(formLayout);
Composite topForm = FormUtils.createForm(getWidgetFactory(), form);
getWidgetFactory().createCLabel(topForm, Messages.getString("EOFetchSpecification." + EOFetchSpecification.NAME), SWT.NONE);
_nameText = new Text(topForm, SWT.BORDER);
GridData nameLayoutData = new GridData(GridData.FILL_HORIZONTAL);
_nameText.setLayoutData(nameLayoutData);
UglyFocusHackWorkaroundListener.addListener(_nameText);
_modelTreeViewer = new TreeViewer(topForm);
GridData modelTreeLayoutData = new GridData(GridData.FILL_BOTH);
modelTreeLayoutData.horizontalSpan = 2;
modelTreeLayoutData.heightHint = 200;
_modelTreeViewer.getTree().setLayoutData(modelTreeLayoutData);
_entityTreeViewUpdater = new EOEntityTreeViewUpdater(_modelTreeViewer, new EOModelOutlineContentProvider(true, true, true, false, false, false, false, true));
_modelTreeViewer.addSelectionChangedListener(this);
_qualifierText = getWidgetFactory().createText(topForm, "", SWT.WRAP | SWT.MULTI | SWT.V_SCROLL);
_qualifierText.setData(FormToolkit.KEY_DRAW_BORDER, FormToolkit.TEXT_BORDER);
GridData qualifierLayoutData = new GridData(GridData.FILL_BOTH);
qualifierLayoutData.horizontalSpan = 2;
qualifierLayoutData.widthHint = 150;
qualifierLayoutData.heightHint = 100;
_qualifierText.setLayoutData(qualifierLayoutData);
_errorLabel = getWidgetFactory().createCLabel(topForm, "", SWT.NONE);
_errorLabel.setForeground(topForm.getDisplay().getSystemColor(SWT.COLOR_RED));
GridData qualifierErrorData = new GridData(GridData.FILL_HORIZONTAL);
qualifierErrorData.horizontalSpan = 2;
_errorLabel.setLayoutData(qualifierErrorData);
}
public void setInput(IWorkbenchPart part, ISelection selection) {
if (ComparisonUtils.equals(selection, getSelection())) {
return;
}
super.setInput(part, selection);
disposeBindings();
Object selectedObject = ((IStructuredSelection) selection).getFirstElement();
_fetchSpecification = (EOFetchSpecification) selectedObject;
if (_fetchSpecification != null) {
_bindingContext = new DataBindingContext();
_bindingContext.bindValue(SWTObservables.observeText(_nameText, SWT.Modify), BeansObservables.observeValue(_fetchSpecification, EOFetchSpecification.NAME), null, null);
Binding qualifierBinding = _bindingContext.bindValue(SWTObservables.observeText(_qualifierText, SWT.Modify), BeansObservables.observeValue(_fetchSpecification, EOFetchSpecification.QUALIFIER_STRING), null, null);
_bindingContext.bindValue(SWTObservables.observeText(_errorLabel), qualifierBinding.getValidationStatus(), null, null);
_entityTreeViewUpdater.setEntity(_fetchSpecification.getEntity());
}
}
protected void disposeBindings() {
if (_bindingContext != null) {
_bindingContext.dispose();
}
}
public void dispose() {
super.dispose();
disposeBindings();
}
public void selectionChanged(SelectionChangedEvent event) {
IStructuredSelection selection = (IStructuredSelection) event.getSelection();
String keyPath;
Object selectedObject = selection.getFirstElement();
if (selectedObject instanceof IEOAttribute) {
keyPath = ((IEOAttribute) selectedObject).getName();
} else if (selectedObject instanceof AbstractEOAttributePath) {
keyPath = ((AbstractEOAttributePath) selectedObject).toKeyPath();
} else {
keyPath = null;
}
if (keyPath != null) {
String qualifierString = _qualifierText.getText();
if (qualifierString != null) {
int caretPosition = _qualifierText.getCaretPosition();
int startPosition = caretPosition;
for (startPosition = caretPosition - 1; startPosition >= 0; startPosition--) {
char ch = qualifierString.charAt(startPosition);
if (!Character.isLetterOrDigit(ch) && ch != '.') {
startPosition++;
break;
}
}
int endPosition;
for (endPosition = caretPosition; endPosition < qualifierString.length(); endPosition++) {
char ch = qualifierString.charAt(endPosition);
if (!Character.isLetterOrDigit(ch) && ch != '.') {
break;
}
}
_qualifierText.setSelection(startPosition, endPosition);
if (startPosition > 0 && qualifierString.charAt(startPosition - 1) != ' ' && qualifierString.charAt(startPosition - 1) != '(') {
keyPath = " " + keyPath;
}
}
_qualifierText.insert(keyPath);
_qualifierText.setFocus();
}
}
}