com.symbian.smt.gui.preferences.AdvancedOptionsPreferences.java Source code

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Here is the source code for com.symbian.smt.gui.preferences.AdvancedOptionsPreferences.java

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// Copyright (c) 2008-2009 Nokia Corporation and/or its subsidiary(-ies).
// All rights reserved.
// This component and the accompanying materials are made available
// under the terms of "Eclipse Public License v1.0"
// which accompanies this distribution, and is available
// at the URL "http://www.eclipse.org/legal/epl-v10.html".
//
// Initial Contributors:
// Nokia Corporation - initial contribution.
//
// Contributors:
//
// Description:
//

package com.symbian.smt.gui.preferences;

import org.eclipse.core.runtime.preferences.DefaultScope;
import org.eclipse.core.runtime.preferences.IEclipsePreferences;
import org.eclipse.core.runtime.preferences.IScopeContext;
import org.eclipse.core.runtime.preferences.InstanceScope;
import org.eclipse.jface.preference.PreferencePage;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.ui.IWorkbench;
import org.eclipse.ui.IWorkbenchPreferencePage;

import com.symbian.smt.gui.AbstractPersistentDataStore;
import com.symbian.smt.gui.Activator;
import com.symbian.smt.gui.PersistentDataStore;
import com.symbian.smt.gui.smtwidgets.AdvancedOptionsWidget;

/**
 * This is the Preference page for the Advanced Options. It utilises the
 * <code>AdvancedOptionsWidget</code>.
 * <p>
 * By default, there are no advanced options defined.
 * </p>
 * 
 * @author barbararosi-schwartz
 */
public class AdvancedOptionsPreferences extends PreferencePage implements IWorkbenchPreferencePage {

    private AdvancedOptionsWidget advancedOptionsWidget;
    private AbstractPersistentDataStore instanceStore;
    private AbstractPersistentDataStore defaultStore;

    public AdvancedOptionsPreferences() {
    }

    public AdvancedOptionsPreferences(String title) {
        super(title);
    }

    public AdvancedOptionsPreferences(String title, ImageDescriptor image) {
        super(title, image);
    }

    @Override
    protected Control createContents(Composite parent) {
        Composite composite = new Composite(parent, SWT.NONE);
        composite.setLayout(new FillLayout(SWT.VERTICAL));

        advancedOptionsWidget = new AdvancedOptionsWidget(composite, SWT.NONE);

        IScopeContext defaultScope = new DefaultScope();
        IEclipsePreferences defaultNode = defaultScope.getNode(Activator.PLUGIN_ID);
        defaultStore = new PersistentDataStore(defaultNode);

        IScopeContext instanceScope = new InstanceScope();
        IEclipsePreferences instanceNode = instanceScope.getNode(Activator.PLUGIN_ID);
        instanceStore = new PersistentDataStore(instanceNode, defaultNode);

        advancedOptionsWidget.setAdvancedOptions(instanceStore.getAdvancedOptions());

        composite.pack();
        parent.pack();

        return composite;
    }

    public void init(IWorkbench workbench) {
        setPreferenceStore(Activator.getDefault().getPreferenceStore());
        setDescription("System Model Diagram advanced options.\n" + "These must be defined in their entirety. "
                + "Their order is also user defined.");
    }

    public void performDefaults() {
        restoreDefaults();
    }

    public boolean performOk() {
        storeValues();
        return super.performOk();
    }

    private void restoreDefaults() {
        advancedOptionsWidget.setAdvancedOptions(defaultStore.getAdvancedOptions());
    }

    private void storeValues() {
        instanceStore.setAdvancedOptions(advancedOptionsWidget.getAdvancedOptions());
    }
}