org.eclipse.stem.ui.views.geographic.preferences.GeographicPreferencePage.java Source code

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Here is the source code for org.eclipse.stem.ui.views.geographic.preferences.GeographicPreferencePage.java

Source

// GeographicPreferencePage.java
package org.eclipse.stem.ui.views.geographic.preferences;

/*******************************************************************************
 * Copyright (c) 2007 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
 *******************************************************************************/

import org.eclipse.jface.preference.BooleanFieldEditor;
import org.eclipse.jface.preference.ColorFieldEditor;
import org.eclipse.jface.preference.FieldEditorPreferencePage;
import org.eclipse.jface.preference.StringFieldEditor;
import org.eclipse.stem.ui.Activator;
import org.eclipse.ui.IWorkbench;
import org.eclipse.ui.IWorkbenchPreferencePage;

/**
 * This class represents the preferences for the Map view of a simulation.
 */
public class GeographicPreferencePage extends FieldEditorPreferencePage implements IWorkbenchPreferencePage {

    /**
     * The ID of the STEM Geographic view Preference page.
     */
    public static final String ID_STEM_GEOGRAPHIC_VIEW_PREFERENCE_PAGE = "org.eclipse.stem.ui.views.geographic.preferences.GeographicViewPreferencePage";

    private static final int FIELD_WIDTH = 11;

    private BooleanFieldEditor drawPolygonBordersFieldEditor;

    private ColorFieldEditor borderColorFieldEditor;

    private BooleanFieldEditor logScaleFieldEditor;

    private StringFieldEditor gainFactorFieldEditor;

    /**
     * Constructor
     */
    public GeographicPreferencePage() {
        super(GRID);
        setPreferenceStore(Activator.getDefault().getPreferenceStore());
        setDescription(Messages.getString("GeoPPage.Viz"));
    } // GeographicPreferencePage

    /**
     * @see org.eclipse.jface.preference.FieldEditorPreferencePage#createFieldEditors()
     */
    @Override
    protected void createFieldEditors() {

        drawPolygonBordersFieldEditor = new BooleanFieldEditor(
                PreferenceConstants.DRAW_POLYGON_BORDERS_BOOLEAN_PREFERENCE,
                Messages.getString("GeoPPage.drawpolyborders"), getFieldEditorParent());

        borderColorFieldEditor = new ColorFieldEditor(PreferenceConstants.BORDER_COLOR_PREFERENCE,
                Messages.getString("GeoPPage.bc"), getFieldEditorParent());

        logScaleFieldEditor = new BooleanFieldEditor(PreferenceConstants.LOGSCALE_BOOLEAN_PREFERENCE,
                Messages.getString("GeoPPage.logscale"), getFieldEditorParent());

        gainFactorFieldEditor = new StringFieldEditor(PreferenceConstants.GAIN_FACTOR_PREFERENCE,
                Messages.getString("GeoPPage.gainf"), FIELD_WIDTH, getFieldEditorParent());
        gainFactorFieldEditor.setEmptyStringAllowed(false);

        addField(drawPolygonBordersFieldEditor);
        addField(borderColorFieldEditor);
        addField(logScaleFieldEditor);
        addField(gainFactorFieldEditor);
    } // createFieldEditors

    /**
     * @see org.eclipse.jface.preference.FieldEditorPreferencePage#checkState()
     */
    @Override
    protected void checkState() {
        super.checkState();

        // Check Gain factor?
        if (isValid()) {
            // Yes
            // Is the Gain factor ok?
            try {
                final double factor = Double.parseDouble(gainFactorFieldEditor.getStringValue());
                if (factor <= 0.0) {
                    setErrorMessage(Messages.getString("GFactor.negErr"));
                    setValid(false);
                } // if
            } catch (Exception e) {
                setErrorMessage(Messages.getString("GeoPPage.numErr"));
                setValid(false);
            } // catch Exception
        } // Check gui Scaling factor

    } // checkState

    /**
     * @see org.eclipse.ui.IWorkbenchPreferencePage#init(org.eclipse.ui.IWorkbench)
     */
    public void init(@SuppressWarnings("unused") IWorkbench workbench) {
        // Nothing
    } // init

} // GeographicPreferencePage