Examples with PlotSamples org.csstudio.trends.databrowser3.model.PlotSamples used on opensource projects

Example 6 with PlotSamples

use of org.csstudio.trends.databrowser3.model.PlotSamples in project org.csstudio.display.builder by kasemir.

the class WaveformView method showSelectedSample.

/**
 * Show the current sample of the current model item.
 */
private void showSelectedSample() {
    // Get selected sample (= one waveform)
    final PlotSamples samples = model_item.getSamples();
    final int idx = sample_index.getSelection();
    final PlotSample sample;
    samples.getLock().lock();
    try {
        sample_index.setMaximum(samples.size());
        sample = samples.get(idx);
    } finally {
        samples.getLock().unlock();
    }
    // Setting the value can be delayed while the plot is being updated
    final VType value = sample.getVType();
    Activator.getThreadPool().execute(() -> waveform.setValue(value));
    if (value == null)
        clearInfo();
    else {
        updateAnnotation(sample.getPosition(), sample.getValue());
        int size = value instanceof VNumberArray ? ((VNumberArray) value).getData().size() : 1;
        plot.getXAxis().setValueRange(0.0, (double) size);
        timestamp.setText(TimestampHelper.format(VTypeHelper.getTimestamp(value)));
        status.setText(NLS.bind(Messages.SeverityStatusFmt, VTypeHelper.getSeverity(value).toString(), VTypeHelper.getMessage(value)));
    }
    plot.requestUpdate();
}