metabup.annotations.general.preferences.AnnotationsPreferencePage.java Source code

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Here is the source code for metabup.annotations.general.preferences.AnnotationsPreferencePage.java

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/*******************************************************************************
 * Copyright (c) 2015 IBM Corporation and others.
 * 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:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/
package metabup.annotations.general.preferences;

import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;

import org.eclipse.jface.preference.*;
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.widgets.Label;
import org.eclipse.ui.IWorkbenchPreferencePage;
import org.eclipse.ui.IWorkbench;

import metabup.annotations.Activator;
import metabup.annotations.IAnnotation;
import metabup.annotations.general.AnnotationFactory;

/**
 * This class represents a preference page that
 * is contributed to the Preferences dialog. By 
 * subclassing <samp>FieldEditorPreferencePage</samp>, we
 * can use the field support built into JFace that allows
 * us to create a page that is small and knows how to 
 * save, restore and apply itself.
 * <p>
 * This page is used to modify preferences only. They
 * are stored in the preference store that belongs to
 * the main plug-in class. That way, preferences can
 * be accessed directly via the preference store.
 */

public class AnnotationsPreferencePage extends FieldEditorPreferencePage implements IWorkbenchPreferencePage {

    public AnnotationsPreferencePage() {
        super(GRID);
        setPreferenceStore(Activator.getDefault().getPreferenceStore());
        setDescription("Annotation catalog preferences");
    }

    /**
     * Creates the field editors. Field editors are abstractions of
     * the common GUI blocks needed to manipulate various types
     * of preferences. Each field editor knows how to save and
     * restore itself.
     */
    public void createFieldEditors() {
        AnnotationFactory af = new AnnotationFactory();
        af.initializeFactory();
        createSpace();

        for (String ann : af.listAllAnnotationsNames()) {
            Class<? extends IAnnotation> annotationClass = af.getAnnotation(ann);
            try {
                IAnnotation annotation = annotationClass.newInstance();
                HashMap<String, Object> preferences = annotation.getPreferences();

                if (preferences != null && !preferences.isEmpty()) {
                    Label label = new Label(getFieldEditorParent(), SWT.BOLD);
                    GridData gd = new GridData(GridData.HORIZONTAL_ALIGN_FILL);
                    gd.horizontalSpan = 2;
                    label.setLayoutData(gd);
                    label.setText("@" + ann);
                    Iterator it = preferences.entrySet().iterator();
                    while (it.hasNext()) {
                        Map.Entry e = (Map.Entry) it.next();
                        if (e.getValue() instanceof String)
                            addField(new StringFieldEditor((String) e.getKey(), (String) e.getKey(),
                                    getFieldEditorParent()));
                        else if (e.getValue() instanceof Boolean)
                            addField(new BooleanFieldEditor((String) e.getKey(), (String) e.getKey(),
                                    getFieldEditorParent()));
                        /* radio group (multi-option) preferences should be furtherly approached */
                    }

                    createSpace();
                }
            } catch (SecurityException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            } catch (IllegalAccessException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            } catch (IllegalArgumentException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            } catch (InstantiationException e2) {
                // TODO Auto-generated catch block
                e2.printStackTrace();
            }
        }

        /*addField(new DirectoryFieldEditor(PreferenceConstants.P_PATH, 
        "&Directory preference:", getFieldEditorParent()));*/
        /*addField(
           new BooleanFieldEditor(
        PreferenceConstants.P_BOOLEAN,
        "&An example of a boolean preference",
        getFieldEditorParent()));*/

        /*addField(new RadioGroupFieldEditor(
        PreferenceConstants.P_CHOICE,
           "An example of a multiple-choice preference",
           1,
           new String[][] { { "&Choice 1", "choice1" }, {
        "C&hoice 2", "choice2" }
        }, getFieldEditorParent()));*/
        /*addField(
           new StringFieldEditor(PreferenceConstants.P_STRING, "A &text preference:", getFieldEditorParent()));*/
    }

    private void createSpace() {
        Label label = new Label(getFieldEditorParent(), SWT.NONE);
        GridData gd = new GridData(GridData.HORIZONTAL_ALIGN_FILL);
        gd.horizontalSpan = 3;
        label.setLayoutData(gd);
    }

    /* (non-Javadoc)
     * @see org.eclipse.ui.IWorkbenchPreferencePage#init(org.eclipse.ui.IWorkbench)
     */
    public void init(IWorkbench workbench) {
    }

}