eu.esdihumboldt.hale.ui.functions.core.CheckboxParameterPage.java Source code

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Here is the source code for eu.esdihumboldt.hale.ui.functions.core.CheckboxParameterPage.java

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/*
 * Copyright (c) 2012 Data Harmonisation Panel
 * 
 * All rights reserved. This program and the accompanying materials are made
 * available under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation, either version 3 of the License,
 * or (at your option) any later version.
 * 
 * You should have received a copy of the GNU Lesser General Public License
 * along with this distribution. If not, see <http://www.gnu.org/licenses/>.
 * 
 * Contributors:
 *     HUMBOLDT EU Integrated Project #030962
 *     Data Harmonisation Panel <http://www.dhpanel.eu>
 */

package eu.esdihumboldt.hale.ui.functions.core;

import java.util.HashMap;
import java.util.Map.Entry;
import java.util.Set;

import org.eclipse.jface.layout.GridLayoutFactory;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;

import com.google.common.collect.ArrayListMultimap;
import com.google.common.collect.ListMultimap;

import eu.esdihumboldt.hale.common.align.extension.function.FunctionParameterDefinition;
import eu.esdihumboldt.hale.common.align.model.ParameterValue;
import eu.esdihumboldt.hale.ui.HaleWizardPage;
import eu.esdihumboldt.hale.ui.function.generic.AbstractGenericFunctionWizard;
import eu.esdihumboldt.hale.ui.function.generic.pages.ParameterPage;

/**
 * Parameter page showing a checkbox for the specified function params. Default
 * for an unspecified or illegal parameter value is always <code>false</code>.
 * 
 * @author Kai Schwierczek
 */
public class CheckboxParameterPage extends HaleWizardPage<AbstractGenericFunctionWizard<?, ?>>
        implements ParameterPage {

    private HashMap<FunctionParameterDefinition, Boolean> selected;

    /**
     * Constructor.
     */
    public CheckboxParameterPage() {
        super("checkbox", "Please specify the function parameters", null);
        setDescription("Enable or disable the given options");
        setPageComplete(true);
    }

    /**
     * @see eu.esdihumboldt.hale.ui.HaleWizardPage#onShowPage(boolean)
     */
    @Override
    protected void onShowPage(boolean firstShow) {
        super.onShowPage(firstShow);
        setPageComplete(true);
    }

    @Override
    public void setParameter(Set<FunctionParameterDefinition> params,
            ListMultimap<String, ParameterValue> initialValues) {
        selected = new HashMap<FunctionParameterDefinition, Boolean>((int) (params.size() * 1.4));
        for (FunctionParameterDefinition param : params) {
            if (initialValues != null && !initialValues.get(param.getName()).isEmpty())
                selected.put(param, initialValues.get(param.getName()).get(0).as(Boolean.class, false));
            else
                selected.put(param, false);
        }

        //      if (params.size() == 1) {
        //         setDescription(params.iterator().next().getDisplayName());
        //      }
    }

    @Override
    public ListMultimap<String, ParameterValue> getConfiguration() {
        ListMultimap<String, ParameterValue> result = ArrayListMultimap.create(selected.size(), 1);
        for (Entry<FunctionParameterDefinition, Boolean> entry : selected.entrySet())
            result.put(entry.getKey().getName(), new ParameterValue(entry.getValue().toString()));

        return result;
    }

    /**
     * @see eu.esdihumboldt.hale.ui.HaleWizardPage#createContent(org.eclipse.swt.widgets.Composite)
     */
    @Override
    protected void createContent(Composite page) {
        page.setLayout(GridLayoutFactory.swtDefaults().create());

        // create section for each function parameter
        for (final FunctionParameterDefinition fp : selected.keySet()) {
            Button checkbox = new Button(page, SWT.CHECK);
            checkbox.setText(fp.getDisplayName());
            checkbox.setSelection(selected.get(fp));
            checkbox.addSelectionListener(new SelectionAdapter() {

                @Override
                public void widgetSelected(SelectionEvent e) {
                    selected.put(fp, !((Boolean) selected.get(fp)));
                }
            });
            if (fp.getDescription() != null) {
                checkbox.setToolTipText(fp.getDescription());
            }
        }
    }
}