uk.ac.stfc.isis.ibex.ui.beamstatus.views.SynchrotronPanel.java Source code

Introduction

Here is the source code for uk.ac.stfc.isis.ibex.ui.beamstatus.views.SynchrotronPanel.java

Source

/*
 * This file is part of the ISIS IBEX application. Copyright (C) 2012-2015
 * Science & Technology Facilities Council. All rights reserved.
 *
 * This program is distributed in the hope that it will be useful. This program
 * and the accompanying materials are made available under the terms of the
 * Eclipse Public License v1.0 which accompanies this distribution. EXCEPT AS
 * EXPRESSLY SET FORTH IN THE ECLIPSE PUBLIC LICENSE V1.0, THE PROGRAM AND
 * ACCOMPANYING MATERIALS ARE PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES
 * OR CONDITIONS OF ANY KIND. See the Eclipse Public License v1.0 for more
 * details.
 *
 * You should have received a copy of the Eclipse Public License v1.0 along with
 * this program; if not, you can obtain a copy from
 * https://www.eclipse.org/org/documents/epl-v10.php or
 * http://opensource.org/licenses/eclipse-1.0.php
 */

package uk.ac.stfc.isis.ibex.ui.beamstatus.views;

import org.eclipse.core.databinding.DataBindingContext;
import org.eclipse.core.databinding.beans.BeanProperties;
import org.eclipse.jface.databinding.swt.WidgetProperties;
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;

import uk.ac.stfc.isis.ibex.beamstatus.BeamStatus;
import uk.ac.stfc.isis.ibex.beamstatus.SynchrotronObservables;

/**
 * The GUI panel for showing the synchrotron information.
 */
public class SynchrotronPanel extends Composite {
    private final Label beamCurrent;
    private final Label beamFrequency;

    /**
     * The constructor.
     * 
     * @param parent the parent
     * @param style the SWT style
     */
    public SynchrotronPanel(Composite parent, int style) {
        super(parent, style);
        setLayout(new GridLayout(2, false));

        Label lblBeamCurrent = new Label(this, SWT.NONE);
        lblBeamCurrent.setText("Beam Current");
        lblBeamCurrent.setAlignment(SWT.RIGHT);

        beamCurrent = new Label(this, SWT.BORDER | SWT.RIGHT);
        beamCurrent.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false, 1, 1));

        Label lblBeamFrequency = new Label(this, SWT.NONE);
        lblBeamFrequency.setText("Beam Frequency");

        beamFrequency = new Label(this, SWT.BORDER | SWT.RIGHT);
        beamFrequency.setLayoutData(new GridData(SWT.FILL, SWT.CENTER, true, false, 1, 1));

        if (BeamStatus.getInstance() != null) {
            bind(BeamStatus.getInstance().synchrotron());
        }
    }

    private void bind(SynchrotronObservables sync) {
        DataBindingContext bindingContext = new DataBindingContext();
        bindingContext.bindValue(WidgetProperties.text().observe(beamCurrent),
                BeanProperties.value("value").observe(sync.beamCurrent));
        bindingContext.bindValue(WidgetProperties.text().observe(beamFrequency),
                BeanProperties.value("value").observe(sync.beamFrequency));
    }

}