uk.ac.stfc.isis.ibex.ui.dae.detectordiagnostics.DetectorDiagnosticsTable.java Source code

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Here is the source code for uk.ac.stfc.isis.ibex.ui.dae.detectordiagnostics.DetectorDiagnosticsTable.java

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/*
* This file is part of the ISIS IBEX application.
* Copyright (C) 2012-2017 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.dae.detectordiagnostics;

import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;

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

import uk.ac.stfc.isis.ibex.dae.detectordiagnostics.SpectrumInformation;
import uk.ac.stfc.isis.ibex.ui.tables.DataboundCellLabelProvider;
import uk.ac.stfc.isis.ibex.ui.tables.DataboundTable;

/**
 * The Detector diagnostics table.
 */
@SuppressWarnings("checkstyle:magicnumber")
public class DetectorDiagnosticsTable extends DataboundTable<SpectrumInformation> {

    /**
     * Instantiates a new device screens table.
     *
     * @param parent the parent
     * @param style the style
     * @param tableStyle the table style
     */
    public DetectorDiagnosticsTable(Composite parent, int style, int tableStyle) {
        super(parent, style, SpectrumInformation.class, tableStyle);
        initialise();
    }

    private static final String DISPLAY_STRING_FOR_NULL_VALUE = "No data";

    @Override
    protected void addColumns() {
        createSpectrumNumberColumn();
        createCountRateColumn();
        createMaxSpecBinCountColumn();
        createIntegralColumn();
    }

    /**
     * Binds this table to the underlying data.
     */
    public void bind() {

        final DetectorDiagnosticsViewModel model = DetectorDiagnosticsViewModel.getInstance();

        (new DataBindingContext()).bindValue(WidgetProperties.enabled().observe(this),
                BeanProperties.value("diagnosticsEnabled").observe(model));

        model.addPropertyChangeListener("spectra", new PropertyChangeListener() {

            @Override
            public void propertyChange(PropertyChangeEvent evt) {
                setRows(model.getSpectra());
            }
        });

        model.startObserving();
    }

    private void createSpectrumNumberColumn() {
        createColumn("Spectrum number", 20,
                new DataboundCellLabelProvider<SpectrumInformation>(observeProperty("spectrumNumber")) {
                    @Override
                    protected String stringFromRow(SpectrumInformation row) {
                        try {
                            return row.getSpectrumNumber().toString();
                        } catch (NullPointerException e) {
                            return DISPLAY_STRING_FOR_NULL_VALUE;
                        }
                    }
                });
    }

    private void createCountRateColumn() {
        createColumn("Count rate", 20,
                new DataboundCellLabelProvider<SpectrumInformation>(observeProperty("countRate")) {
                    @Override
                    protected String stringFromRow(SpectrumInformation row) {
                        try {
                            return row.getCountRate().toString();
                        } catch (NullPointerException e) {
                            return DISPLAY_STRING_FOR_NULL_VALUE;
                        }
                    }
                });
    }

    private void createMaxSpecBinCountColumn() {
        createColumn("Maximum", 20,
                new DataboundCellLabelProvider<SpectrumInformation>(observeProperty("maxSpecBinCount")) {
                    @Override
                    protected String stringFromRow(SpectrumInformation row) {
                        try {
                            return row.getMaxSpecBinCount().toString();
                        } catch (NullPointerException e) {
                            return DISPLAY_STRING_FOR_NULL_VALUE;
                        }
                    }
                });
    }

    private void createIntegralColumn() {
        createColumn("Integral", 20,
                new DataboundCellLabelProvider<SpectrumInformation>(observeProperty("integral")) {
                    @Override
                    protected String stringFromRow(SpectrumInformation row) {
                        try {
                            return row.getIntegral().toString();
                        } catch (NullPointerException e) {
                            return DISPLAY_STRING_FOR_NULL_VALUE;
                        }
                    }
                });
    }
}