doc/org.eclipse.tracecompass.examples/src/org/eclipse/tracecompass/examples/ui/views/histogram/NewHistogramView.java

/*******************************************************************************
 * Copyright (c) 2013, 2015 Ericsson
 *
 * All rights reserved. This program and the accompanying materials are
 * made available under the terms of the Eclipse Public License 2.0 which
 * accompanies this distribution, and is available at
 * https://www.eclipse.org/legal/epl-2.0/
 *
 * SPDX-License-Identifier: EPL-2.0
 *
 * Contributors:
 *   Bernd Hufmann - Initial API and implementation
 *******************************************************************************/
package org.eclipse.tracecompass.examples.ui.views.histogram;

import org.eclipse.swt.widgets.Composite;
import org.eclipse.tracecompass.examples.ui.viewers.histogram.HistogramTreeViewer;
import org.eclipse.tracecompass.examples.ui.viewers.histogram.NewHistogramViewer;
import org.eclipse.tracecompass.tmf.core.signal.TmfTraceSelectedSignal;
import org.eclipse.tracecompass.tmf.core.trace.ITmfTrace;
import org.eclipse.tracecompass.tmf.core.trace.TmfTraceManager;
import org.eclipse.tracecompass.tmf.ui.viewers.TmfViewer;
import org.eclipse.tracecompass.tmf.ui.viewers.xycharts.TmfXYChartViewer;
import org.eclipse.tracecompass.tmf.ui.viewers.xycharts.linecharts.TmfXYChartSettings;
import org.eclipse.tracecompass.tmf.ui.views.TmfChartView;

/**
 * Histogram View based on TmfChartView.
 *
 * @author Bernd Hufmann
 */
public class NewHistogramView extends TmfChartView {
    /** The view ID. */
    public static final String ID = "org.eclipse.tracecompass.examples.ui.views.NewHistogramView"; //$NON-NLS-1$

    /**
     * Default Constructor
     */
    public NewHistogramView() {
        super(ID);
    }

    @Override
    protected TmfXYChartViewer createChartViewer(Composite parent) {
        return new NewHistogramViewer(parent, new TmfXYChartSettings(null, null, null, 1));
    }

    @Override
    public TmfViewer createLeftChildViewer(Composite parent) {
        HistogramTreeViewer histogramTreeViewer = new HistogramTreeViewer(parent);
        ITmfTrace trace = TmfTraceManager.getInstance().getActiveTrace();
        if (trace != null) {
            histogramTreeViewer.traceSelected(new TmfTraceSelectedSignal(this, trace));
        }
        return histogramTreeViewer;
    }
}