ac.soton.multisim.ui.viewers.ColumnProviderTableViewer.java Source code

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Here is the source code for ac.soton.multisim.ui.viewers.ColumnProviderTableViewer.java

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/**
 * Copyright (c) 2014 University of Southampton.
 * 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
 */
package ac.soton.multisim.ui.viewers;

import java.util.List;

import org.eclipse.jface.viewers.ArrayContentProvider;
import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.jface.viewers.TableViewerColumn;
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Table;
import org.eclipse.swt.widgets.TableColumn;

import ac.soton.multisim.ui.providers.ColumnProvider;

/**
 * Table viewer for displaying elements via column providers.
 * Capable of editing variable values via cell editor.
 * 
 * @author vitaly
 *
 */
public abstract class ColumnProviderTableViewer extends TableViewer {

    /**
     * @param parent
     * @param style
     */
    public ColumnProviderTableViewer(Composite parent, int style) {
        super(parent, style);
        createColumns();
        Table table = getTable();
        table.setHeaderVisible(true);
        table.setLinesVisible(true);
        setContentProvider(ArrayContentProvider.getInstance());
    }

    /**
     * Creates column providers for the table viewer.
     * 
     * @return providers
     */
    protected abstract List<ColumnProvider> createColumnProviders();

    /**
     * Creates columns from providers.
     */
    private void createColumns() {
        List<ColumnProvider> columnProviders = createColumnProviders();
        for (ColumnProvider provider : columnProviders) {
            TableViewerColumn column = createTableViewerColumn(provider.getTitle(), provider.getBound());
            column.setLabelProvider(provider.getLabelProvider());
            if (provider.getEditingSupport() != null) {
                column.setEditingSupport(provider.getEditingSupport());
            }
        }
    }

    /**
     * Creates a table viewer column.
     * 
     * @param title column title
     * @param bound column width
     * @return table viewer column
     */
    private TableViewerColumn createTableViewerColumn(String title, int bound) {
        TableViewerColumn viewerColumn = new TableViewerColumn(this, SWT.NONE);
        final TableColumn column = viewerColumn.getColumn();
        column.setText(title);
        column.setWidth(bound);
        return viewerColumn;
    }

}