org.eclipse.emf.ecp.controls.vaadin.internal.AbstractVaadinList.java Source code

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Here is the source code for org.eclipse.emf.ecp.controls.vaadin.internal.AbstractVaadinList.java

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/*******************************************************************************
 * Copyright (c) 2014 Dennis Melzer and others.
 *
 * 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:
 * Dennis - initial API and implementation
 ******************************************************************************/
package org.eclipse.emf.ecp.controls.vaadin.internal;

import org.eclipse.emf.ecore.EStructuralFeature.Setting;
import org.eclipse.emf.ecp.controls.vaadin.AbstractVaadinSimpleControlRenderer;
import org.eclipse.emf.ecp.view.core.vaadin.VaadinWidgetFactory;

import com.vaadin.data.util.IndexedContainer;
import com.vaadin.ui.Component;
import com.vaadin.ui.HorizontalLayout;
import com.vaadin.ui.Table;
import com.vaadin.ui.Table.ColumnGenerator;
import com.vaadin.ui.Table.ColumnHeaderMode;
import com.vaadin.ui.VerticalLayout;

/**
 * Abstract Control for a Vaadin List.
 *
 * @author Dennis Melzer
 *
 */
public abstract class AbstractVaadinList extends AbstractVaadinSimpleControlRenderer {

    /** The remove column. */
    protected static final String REMOVE_COLUMN = "remove"; //$NON-NLS-1$
    private static final String REFERENCE_LIST = "reference-list"; //$NON-NLS-1$
    private Table table;
    private Setting setting;
    private HorizontalLayout toolbar;

    @Override
    public Component createControl() {
        return null;
    }

    @Override
    public VerticalLayout render() {
        setting = getVElement().getDomainModelReference().getIterator().next();
        final VerticalLayout layout = new VerticalLayout();
        layout.setSizeFull();
        table = createTable();
        createRemoveColumn(setting);

        toolbar = createToolbar();
        renderList(layout);
        return layout;
    }

    private void createRemoveColumn(final Setting setting) {
        table.addGeneratedColumn(REMOVE_COLUMN, new ColumnGenerator() {

            @Override
            public Object generateCell(Table source, Object itemId, Object columnId) {
                return VaadinWidgetFactory.createTableRemoveButtonFlat(setting, itemId);
            }
        });
        table.setColumnWidth(REMOVE_COLUMN, 40);
    }

    private IndexedContainer createContainer() {
        final IndexedContainer container = new IndexedContainer();
        createContainerProperty(container);
        return container;
    }

    private Table createTable() {
        final Table table = new Table();
        table.setColumnHeaderMode(ColumnHeaderMode.HIDDEN);
        table.setSizeFull();
        table.setSelectable(true);
        table.addStyleName(REFERENCE_LIST);
        final IndexedContainer container = createContainer();
        table.setContainerDataSource(container);
        return table;
    }

    /**
     * Returns the setting.
     *
     * @return the setting
     */
    public Setting getSetting() {
        return setting;
    }

    /**
     * Returns the table.
     *
     * @return the table
     */
    public Table getTable() {
        return table;
    }

    /**
     * Returns the toolbar.
     *
     * @return the toolbar
     */
    public HorizontalLayout getToolbar() {
        return toolbar;
    }

    /**
     * Creates the container property for columns.
     *
     * @param container the table container
     */
    protected abstract void createContainerProperty(IndexedContainer container);

    /**
     * Creates the List toolbar.
     *
     * @return the layout
     */
    protected abstract HorizontalLayout createToolbar();

    /**
     * Render the list control.
     *
     * @param layout the parent layout
     */
    protected abstract void renderList(VerticalLayout layout);

}