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/********************************************************************************
* Copyright (c) 2006, 2009 Versant. 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: Versant and Others. - initial API and implementation
********************************************************************************/
package org.eclipse.jpt.jpa.ui.internal.views;
import org.eclipse.jpt.common.ui.WidgetFactory;
import org.eclipse.jpt.common.ui.internal.widgets.FormWidgetFactory;
import org.eclipse.jpt.common.ui.internal.widgets.PropertySheetWidgetFactory;
import org.eclipse.jpt.jpa.ui.JptJpaUiPlugin;
import org.eclipse.jpt.jpa.ui.internal.selection.JpaSelection;
import org.eclipse.jpt.jpa.ui.internal.selection.JpaSelectionManager;
import org.eclipse.jpt.jpa.ui.internal.selection.SelectionManagerFactory;
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.ui.forms.widgets.FormToolkit;
import org.eclipse.ui.forms.widgets.ScrolledForm;
import org.eclipse.ui.part.PageBook;
import org.eclipse.ui.part.ViewPart;
import org.eclipse.ui.views.properties.tabbed.TabbedPropertySheetWidgetFactory;
/**
* This is the abstract implementation of the JPA view. The selection is changed
* by receiving a <code>IJpaSelection</code>.
*
* @see JpaSelection
*
* @version 2.0
* @since 1.0
*/
public abstract class AbstractJpaView extends ViewPart
{
/**
* The default page used when nothing can be shown.
*/
private Composite defaultComposite;
/**
* The string to display when there is no view content
*/
private String defaultLabel;
/**
* The container of the current page.
*/
private PageBook pageBook;
private ScrolledForm scrolledForm;
/**
* The factory used to create the various widgets.
*/
private WidgetFactory widgetFactory;
/**
* Creates a new <code>AbstractJpaView</code>.
*
* @param defaultLabel
*/
public AbstractJpaView(String defaultLabel) {
super();
this.defaultLabel = defaultLabel;
this.initialize();
}
private Composite buildDefaultComposite() {
Composite composite = widgetFactory.createComposite(pageBook);
composite.setLayout(new FillLayout(SWT.VERTICAL));
getWidgetFactory().createLabel(composite, defaultLabel);
return composite;
}
@Override
public final void createPartControl(Composite parent) {
this.scrolledForm = getFormWidgetFactory().createScrolledForm(parent);
JptJpaUiPlugin.instance().controlAffectsJavaSource(this.scrolledForm);
this.scrolledForm.getBody().setLayout(new GridLayout());
this.pageBook = new PageBook(this.scrolledForm.getBody(), SWT.NONE);
GridData gridData = new GridData();
gridData.grabExcessHorizontalSpace = true;
gridData.horizontalAlignment = SWT.FILL;
this.pageBook.setLayoutData(gridData);
this.scrolledForm.setContent(this.pageBook);
this.defaultComposite = buildDefaultComposite();
this.pageBook.showPage(this.defaultComposite);
subcreatePartControl(parent);
JpaSelectionManager selectionManager =
SelectionManagerFactory.getSelectionManager(getViewSite().getWorkbenchWindow());
selectionManager.register(this);
select(selectionManager.getCurrentSelection());
}
protected final PageBook getPageBook() {
return this.pageBook;
}
public final WidgetFactory getWidgetFactory() {
return this.widgetFactory;
}
/**
* Initializes this JPA view.
*/
protected void initialize() {
this.widgetFactory = new PropertySheetWidgetFactory(
new TabbedPropertySheetWidgetFactory()
);
}
private FormToolkit getFormWidgetFactory() {
return ((FormWidgetFactory) widgetFactory).getWidgetFactory();
}
/**
* The selection has changed, update the current page by using the given
* selection state.
*
* @param jpaSelection The new selection used to update this JPA view
*/
public abstract void select(JpaSelection jpaSelection);
/*
* (non-Javadoc)
*/
@Override
public void setFocus() {
pageBook.setFocus();
}
/**
* Changes the current page and show the default one.
*/
protected void showDefaultPage() {
showPage(defaultComposite);
}
/**
* Changes the current page and show the given one.
*
* @param page The new page to show, <code>null</code> can't be passed
*/
protected final void showPage(Control page) {
page.setParent(this.pageBook);
this.pageBook.showPage(page);
this.scrolledForm.reflow(true);
}
protected void subcreatePartControl(@SuppressWarnings("unused") Composite parent) {
// no op - for subclasses to override if wished
}
}
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