RuntimePreferencePage.java

/*******************************************************************************
 * Copyright (c) 2009, 2010 SpringSource, a divison of VMware, Inc.
 * 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:
 *     SpringSource, a division of VMware, Inc. - initial API and implementation
 *******************************************************************************/

package org.eclipse.virgo.ide.runtime.internal.ui.properties;

import org.eclipse.jface.preference.BooleanFieldEditor;
import org.eclipse.swt.SWT;
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.swt.widgets.Label;
import org.eclipse.ui.IWorkbench;
import org.eclipse.ui.IWorkbenchPreferencePage;
import org.eclipse.ui.dialogs.PropertyPage;
import org.eclipse.virgo.ide.runtime.core.ServerCorePlugin;

/**
 * {@link PropertyPage} to configure loading of class and resource names from the repository index
 *
 * @author Christian Dupuis
 * @since 2.3.0
 */
public class RuntimePreferencePage extends PropertyPage implements IWorkbenchPreferencePage {

    private BooleanFieldEditor booleanEditor;

    @Override
    protected Control createContents(Composite parent) {

        Composite entryTable = new Composite(parent, SWT.NULL);

        // Create a data that takes up the extra space in the dialog .
        GridData data = new GridData(GridData.FILL_HORIZONTAL);
        data.grabExcessHorizontalSpace = true;
        entryTable.setLayoutData(data);

        GridLayout layout = new GridLayout();
        entryTable.setLayout(layout);

        Label label = new Label(entryTable, SWT.NONE);
        label.setText("Use this preference page to enable loading of class and resource names\n"
            + "from the Bundle Repository Index so that they will be included in searches.");

        Composite radioComposite = new Composite(entryTable, SWT.NONE);
        radioComposite.setLayout(new GridLayout());

        // Create a data that takes up the extra space in the dialog.
        radioComposite.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));

        Composite radioComposite2 = new Composite(radioComposite, SWT.NONE);
        layout.marginWidth = 3;
        layout.marginHeight = 3;
        radioComposite2.setLayout(layout);
        radioComposite2.setLayoutData(new GridData(GridData.FILL_HORIZONTAL));
        this.booleanEditor = new BooleanFieldEditor(ServerCorePlugin.PREF_LOAD_CLASSES_KEY, "Load class and resource names", radioComposite2);
        this.booleanEditor.setPage(this);
        this.booleanEditor.setPreferenceStore(getPreferenceStore());
        this.booleanEditor.load();

        Label noteLabel = new Label(radioComposite, SWT.NONE);
        noteLabel.setText("Note: enabling this option will increase memory consumption.\nChanging the setting requires a restart to take effect.");

        return entryTable;

    }

    public void init(IWorkbench workbench) {
        // Initialize the preference store we wish to use
        setPreferenceStore(ServerCorePlugin.getDefault().getPreferenceStore());
    }

    @Override
    protected void performDefaults() {
        this.booleanEditor.loadDefault();
    }

    @Override
    public boolean performOk() {
        this.booleanEditor.store();
        return super.performOk();
    }

}