rtm/org.eclipse.statet.rtm.base.ui/src/org/eclipse/statet/ecommons/emf/ui/forms/EFFormSection.java

/*=============================================================================#
 # Copyright (c) 2012, 2021 Stephan Wahlbrink and others.
 # 
 # This program and the accompanying materials are made available under the
 # terms of the Eclipse Public License 2.0 which is available at
 # https://www.eclipse.org/legal/epl-2.0, or the Apache License, Version 2.0
 # which is available at https://www.apache.org/licenses/LICENSE-2.0.
 # 
 # SPDX-License-Identifier: EPL-2.0 OR Apache-2.0
 # 
 # Contributors:
 #     Stephan Wahlbrink <sw@wahlbrink.eu> - initial API and implementation
 #=============================================================================*/

package org.eclipse.statet.ecommons.emf.ui.forms;

import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Layout;
import org.eclipse.ui.forms.SectionPart;
import org.eclipse.ui.forms.widgets.ExpandableComposite;
import org.eclipse.ui.forms.widgets.Section;

import org.eclipse.statet.ecommons.emf.core.databinding.IEMFEditContext;
import org.eclipse.statet.ecommons.emf.ui.databinding.IDataBindingPart;


public abstract class EFFormSection extends SectionPart
		implements IAdaptable, IDataBindingPart {
	
	
	public final static int TITLE_STYLE= ExpandableComposite.TITLE_BAR;
	public final static int TITLE_DESCRIPTION_STYLE= TITLE_STYLE | Section.DESCRIPTION;
	public final static int EXPANDABLE_STYLE= ExpandableComposite.TWISTIE;
	
	
	private final IEFFormPage page;
	
	
	public EFFormSection(final IEFFormPage page, final Composite parent,
			final String title, final String description) {
		this(page, parent, (description != null) ? TITLE_DESCRIPTION_STYLE : TITLE_STYLE);
		
		final Section section= getSection();
		section.setText(title);
		if (description != null) {
			section.setDescription(description);
		}
	}
	
	public EFFormSection(final IEFFormPage page, final Composite parent, final int style) {
		super(parent, page.getToolkit(), style);
		this.page= page;
//		initialize(page.getManagedForm());
		
		final Section section= getSection();
		section.clientVerticalSpacing= EFLayoutUtil.SECTION_HEADER_V_SPACING;
		section.setData("part", this); //$NON-NLS-1$
	}
	
	
	public IEFFormPage getPage() {
		return this.page;
	}
	
	protected void createClient() {
		final Section section= getSection();
		final EFToolkit toolkit= this.page.getToolkit();
		
		final Composite composite= toolkit.createComposite(section);
		composite.setLayout(createClientLayout());
		section.setClient(composite);
		
		createContent(composite);
	}
	
	protected Layout createClientLayout() {
		final GridLayout layout= EFLayoutUtil.createSectionPropGridLayout();
//		TableWrapLayout layout= FormLayoutUtil.createSectionClientTableWrapLayout(3);
		return layout;
	}
	
	protected abstract void createContent(Composite composite);
	
	@Override
	public void addBindings(final IEMFEditContext context) {
	}
	
	
	@Override
	protected void expansionStateChanged(final boolean expanded) {
		getPage().reflow(false);
	}
	
	@Override
	public <T> T getAdapter(final Class<T> adapterType) {
		return null;
	}
	
}