org.eclipse.cdt.codan.internal.ui.widgets.FileScopeComposite.java Source code

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Here is the source code for org.eclipse.cdt.codan.internal.ui.widgets.FileScopeComposite.java

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/*******************************************************************************
 * Copyright (c) 2009, 2010 Alena Laskavaia 
 * 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:
 *    Alena Laskavaia  - initial API and implementation
 *******************************************************************************/
package org.eclipse.cdt.codan.internal.ui.widgets;

import org.eclipse.cdt.codan.core.model.IProblem;
import org.eclipse.cdt.codan.core.model.IProblemWorkingCopy;
import org.eclipse.cdt.codan.core.param.FileScopeProblemPreference;
import org.eclipse.cdt.codan.core.param.IProblemPreference;
import org.eclipse.cdt.codan.core.param.MapProblemPreference;
import org.eclipse.cdt.codan.internal.ui.CodanUIMessages;
import org.eclipse.cdt.codan.internal.ui.preferences.FileScopePreferencePage;
import org.eclipse.core.resources.IResource;
import org.eclipse.jface.preference.PreferenceStore;
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.Label;

/**
 * Composite to show problem scope
 * 
 */
public class FileScopeComposite extends Composite {
    private FileScopePreferencePage page;
    private IProblem problem;
    private PreferenceStore prefStore;
    private FileScopeProblemPreference scope;

    /**
     * @param parent
     * @param problem
     * @param resource
     * @param style
     */
    public FileScopeComposite(Composite parent, final IProblem problem, IResource resource) {
        super(parent, SWT.NONE);
        if (problem == null)
            throw new NullPointerException();
        this.setLayout(new GridLayout(2, false));
        this.problem = problem;
        this.prefStore = new PreferenceStore();
        IProblemPreference info = problem.getPreference();
        FileScopeProblemPreference scopeIn = null;
        if (info == null || (!(info instanceof MapProblemPreference))
                || ((scopeIn = (FileScopeProblemPreference) ((MapProblemPreference) info)
                        .getChildDescriptor(FileScopeProblemPreference.KEY)) == null)) {
            Label label = new Label(this, 0);
            label.setText(CodanUIMessages.ParametersComposite_None);
            return;
        }
        scope = (FileScopeProblemPreference) scopeIn.clone();
        scope.setResource(resource);
        initPrefStore();
        page = new FileScopePreferencePage(scope);
        page.setPreferenceStore(prefStore);
        page.noDefaultAndApplyButton();
        page.createControl(parent);
        page.getControl().setLayoutData(new GridData(GridData.FILL_BOTH));
    }

    public void save(IProblemWorkingCopy problem) {
        if (page != null)
            page.performOk();
        savePrefStore(problem);
    }

    private void savePrefStore(IProblemWorkingCopy problem) {
        if (scope == null)
            return;
        String key = scope.getQualifiedKey();
        ((MapProblemPreference) problem.getPreference()).addChildDescriptor(scope);
        prefStore.setValue(key, scope.exportValue());
    }

    private void initPrefStore() {
        if (scope == null)
            return;
        String key = scope.getQualifiedKey();
        prefStore.setValue(key, scope.exportValue());
    }

    /**
     * @return the problem
     */
    public IProblem getProblem() {
        return problem;
    }
}