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

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Here is the source code for com.symbian.smt.gui.preferences.BuildPreferences.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.BuildControlWidget;
import com.symbian.smt.gui.smtwidgets.ValidModelDefinedListener;
import com.symbian.smt.gui.smtwidgets.ValidModelEvent;

public class BuildPreferences extends PreferencePage
        implements IWorkbenchPreferencePage, ValidModelDefinedListener {

    private BuildControlWidget buildWidget;

    private AbstractPersistentDataStore instanceStore;
    private AbstractPersistentDataStore defaultStore;

    public BuildPreferences() {
    }

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

    public BuildPreferences(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));

        buildWidget = new BuildControlWidget(composite, SWT.NONE, true);

        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);

        buildWidget.setOutputFilename(instanceStore.getOutputFilename());
        buildWidget.setWarningLevel(instanceStore.getWarningLevel());

        buildWidget.addModelListener(this);

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

        return composite;
    }

    @Override
    public void dispose() {
        if (buildWidget != null) {
            buildWidget.removeModelListener(this);
        }

        super.dispose();
    }

    /*
     * Comma-separated list of filters to turn on when building the model. All
     * filters on an item must be present in this list in order for that item to
     * appear. Order does not matter
     */
    public void init(IWorkbench workbench) {
        setPreferenceStore(Activator.getDefault().getPreferenceStore());
        setDescription("System Model Manager build options.");
    }

    public void performDefaults() {
        restoreDefaults();
    }

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

    private void restoreDefaults() {
        buildWidget.setOutputFilename(defaultStore.getOutputFilename());
        buildWidget.setWarningLevel(defaultStore.getWarningLevel());
    }

    private void storeValues() {
        instanceStore.setOutputFilename(buildWidget.getOutputFilename());
        instanceStore.setWarningLevel(buildWidget.getWarningLevel());
    }

    /*
     * This is called by the observed object when a change is used to ensure the
     * information entered into the widget is acceptable, in this case at least
     * 1 system definition xml file
     * 
     * @return void
     */
    public void validModelDefined(ValidModelEvent event) {
        Boolean isValid = event.isValid();

        setValid(isValid);

        if (isValid) {
            setErrorMessage(null);
        } else {
            setErrorMessage(event.getMessage());
        }
    }
}