org.kalypso.ui.editor.styleeditor.halo.HaloComposite.java Source code

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Here is the source code for org.kalypso.ui.editor.styleeditor.halo.HaloComposite.java

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/*----------------    FILE HEADER KALYPSO ------------------------------------------
 *
 *  This file is part of kalypso.
 *  Copyright (C) 2004 by:
 *
 *  Technical University Hamburg-Harburg (TUHH)
 *  Institute of River and coastal engineering
 *  Denickestrae 22
 *  21073 Hamburg, Germany
 *  http://www.tuhh.de/wb
 *
 *  and
 *
 *  Bjoernsen Consulting Engineers (BCE)
 *  Maria Trost 3
 *  56070 Koblenz, Germany
 *  http://www.bjoernsen.de
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public
 *  License as published by the Free Software Foundation; either
 *  version 2.1 of the License, or (at your option) any later version.
 *
 *  This library is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *  Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this library; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 *  Contact:
 *
 *  E-Mail:
 *  belger@bjoernsen.de
 *  schlienger@bjoernsen.de
 *  v.doemming@tuhh.de
 *
 *  ---------------------------------------------------------------------------*/
package org.kalypso.ui.editor.styleeditor.halo;

import org.eclipse.core.databinding.observable.value.IObservableValue;
import org.eclipse.jface.databinding.swt.SWTObservables;
import org.eclipse.jface.layout.GridLayoutFactory;
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Spinner;
import org.eclipse.ui.forms.widgets.Form;
import org.eclipse.ui.forms.widgets.FormToolkit;
import org.kalypso.commons.databinding.IDataBinding;
import org.kalypso.commons.databinding.forms.DatabindingForm;
import org.kalypso.ui.editor.styleeditor.IStyleContext;
import org.kalypso.ui.editor.styleeditor.binding.IStyleInput;
import org.kalypso.ui.internal.i18n.Messages;
import org.kalypsodeegree.graphics.sld.Halo;
import org.kalypsodeegree.graphics.sld.Stroke;

/**
 * @author Gernot Belger
 */
public class HaloComposite extends Composite {
    private Halo m_halo;

    private IStyleContext m_context;

    private final IStyleInput<Halo> m_input;

    private final IDataBinding m_binding;

    private HaloStrokeSection m_strokeSection;

    private HaloFillSection m_fillSection;

    public HaloComposite(final FormToolkit toolkit, final Composite parent, final IStyleInput<Halo> input) {
        super(parent, SWT.NONE);

        m_input = input;

        toolkit.adapt(this);
        setLayout(new FillLayout());

        final Form form = toolkit.createForm(this);
        final Composite body = form.getBody();
        GridLayoutFactory.fillDefaults().numColumns(2).equalWidth(true).spacing(0, 0).applyTo(body);

        m_binding = new DatabindingForm(form, toolkit);

        createRadiusControl(toolkit, body).setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false, 2, 1));
        createStrokeControl(toolkit, body).setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
        createFillControl(toolkit, body).setLayoutData(new GridData(SWT.FILL, SWT.FILL, true, true));
    }

    private Control createRadiusControl(final FormToolkit toolkit, final Composite parent) {
        final Composite radiusComposite = toolkit.createComposite(parent);
        radiusComposite.setLayout(new GridLayout(2, false));

        toolkit.createLabel(radiusComposite, Messages.getString("HaloComposite_0")); //$NON-NLS-1$

        final Spinner spinner = new Spinner(radiusComposite, SWT.BORDER);
        toolkit.adapt(spinner, true, true);

        final IObservableValue target = SWTObservables.observeSelection(spinner);
        final HaloRadiusValue model = new HaloRadiusValue(m_input);
        model.configureSpinner(spinner);

        m_binding.bindValue(target, model);

        return radiusComposite;
    }

    private Control createStrokeControl(final FormToolkit toolkit, final Composite parent) {
        m_strokeSection = new HaloStrokeSection(toolkit, parent, m_input);
        return m_strokeSection.getSection();
    }

    private Control createFillControl(final FormToolkit toolkit, final Composite parent) {
        m_fillSection = new HaloFillSection(toolkit, parent, m_input);
        return m_fillSection.getSection();
    }

    protected void handleStrokeChanged(final Stroke stroke) {
        if (m_halo != null)
            m_halo.setStroke(stroke);

        fireStyleChanged();
    }

    private void fireStyleChanged() {
        if (m_context != null)
            m_context.fireStyleChanged();
    }

    public void updateControl() {
        m_binding.getBindingContext().updateTargets();

        m_strokeSection.updateControl();
        m_fillSection.updateControl();
    }
}