Examples with VNumberArray org.diirt.vtype.VNumberArray used on opensource projects

Example 11 with VNumberArray

use of org.diirt.vtype.VNumberArray 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();
}

Example 12 with VNumberArray

use of org.diirt.vtype.VNumberArray in project org.csstudio.display.builder by kasemir.

the class WidgetInfoDialog method createPVs.

private Tab createPVs(final Collection<NameStateValue> pvs) {
    // Use text field to allow users to copy the name, value to clipboard
    final TableColumn<NameStateValue, String> name = new TableColumn<>(Messages.WidgetInfoDialog_Name);
    name.setCellFactory(TextFieldTableCell.forTableColumn());
    name.setCellValueFactory(param -> new ReadOnlyStringWrapper(param.getValue().name));
    final TableColumn<NameStateValue, String> state = new TableColumn<>(Messages.WidgetInfoDialog_State);
    state.setCellFactory(TextFieldTableCell.forTableColumn());
    state.setCellValueFactory(param -> new ReadOnlyStringWrapper(param.getValue().state));
    final TableColumn<NameStateValue, String> value = new TableColumn<>(Messages.WidgetInfoDialog_Value);
    value.setCellFactory(TextFieldTableCell.forTableColumn());
    value.setCellValueFactory(param -> {
        String text;
        final VType vtype = param.getValue().value;
        if (vtype == null)
            text = Messages.WidgetInfoDialog_Disconnected;
        else {
            // so only show the basic type info
            if (vtype instanceof VNumberArray)
                text = vtype.toString();
            else
                text = VTypeUtil.getValueString(vtype, true);
            if (vtype instanceof Alarm) {
                final Alarm alarm = (Alarm) vtype;
                if (alarm.getAlarmSeverity() != AlarmSeverity.NONE)
                    text = text + " [" + alarm.getAlarmSeverity().toString() + ", " + alarm.getAlarmName() + "]";
            }
        }
        return new ReadOnlyStringWrapper(text);
    });
    final ObservableList<NameStateValue> pv_data = FXCollections.observableArrayList(pvs);
    pv_data.sort((a, b) -> a.name.compareTo(b.name));
    final TableView<NameStateValue> table = new TableView<>(pv_data);
    table.getColumns().add(name);
    table.getColumns().add(state);
    table.getColumns().add(value);
    table.setEditable(true);
    table.setColumnResizePolicy(TableView.CONSTRAINED_RESIZE_POLICY);
    return new Tab(Messages.WidgetInfoDialog_TabPVs, table);
}

Example 13 with VNumberArray

use of org.diirt.vtype.VNumberArray in project org.csstudio.display.builder by kasemir.

the class ValueUtil method getDoubleArray.

/**
 * Try to get a 'double' type array from a value.
 *  @param value Value of a PV
 *  @return Current value as double[].
 *          Will return single-element array for scalar value,
 *          including <code>{ Double.NaN }</code> in case the value type
 *          does not decode into a number.
 */
public static double[] getDoubleArray(final VType value) {
    if (value instanceof VNumberArray) {
        final ListNumber list = ((VNumberArray) value).getData();
        final Object wrapped = CollectionNumbers.wrappedArray(list);
        if (wrapped instanceof double[])
            return (double[]) wrapped;
        final double[] result = new double[list.size()];
        for (int i = 0; i < result.length; i++) result[i] = list.getDouble(i);
        return result;
    }
    return new double[] { getDouble(value) };
}

Example 14 with VNumberArray

use of org.diirt.vtype.VNumberArray in project org.csstudio.display.builder by kasemir.

the class ValueUtil method getTable.

/**
 * Get a table from PV
 *
 *  <p>Ideally, the PV holds a {@link VTable},
 *  and the returned data is then the table's data.
 *
 *  <p>If the PV is a scalar, a table with a single cell is returned.
 *  <p>If the PV is an array, a table with one column is returned.
 *
 *  @param value Value of a PV
 *  @return List of rows, where each row contains either String or Number cells
 */
@SuppressWarnings("rawtypes")
public static List<List<Object>> getTable(final VType value) {
    final List<List<Object>> data = new ArrayList<>();
    if (value instanceof VTable) {
        final VTable table = (VTable) value;
        final int rows = table.getRowCount();
        final int cols = table.getColumnCount();
        // Extract 2D string matrix for data
        for (int r = 0; r < rows; ++r) {
            final List<Object> row = new ArrayList<>(cols);
            for (int c = 0; c < cols; ++c) {
                final Object col_data = table.getColumnData(c);
                if (col_data instanceof List)
                    row.add(Objects.toString(((List) col_data).get(r)));
                else if (col_data instanceof ListDouble)
                    row.add(((ListDouble) col_data).getDouble(r));
                else if (col_data instanceof ListNumber)
                    row.add(((ListNumber) col_data).getLong(r));
                else
                    row.add(Objects.toString(col_data));
            }
            data.add(row);
        }
    } else if (value instanceof VNumberArray) {
        final ListNumber numbers = ((VNumberArray) value).getData();
        final int num = numbers.size();
        for (int i = 0; i < num; ++i) data.add(Arrays.asList(numbers.getDouble(i)));
    } else if (value instanceof VNumber)
        data.add(Arrays.asList(((VNumber) value).getValue()));
    else
        data.add(Arrays.asList(Objects.toString(value)));
    return data;
}

Example 15 with VNumberArray

use of org.diirt.vtype.VNumberArray in project org.csstudio.display.builder by kasemir.

the class ArrayPVDispatcherTest method testArrayPVDispatcher.

/**
 * Test double-typed array PV
 */
@Test
public void testArrayPVDispatcher() throws Exception {
    // Array PV. It's elements are to be dispatched into separate PVs
    final RuntimePV array_pv = PVFactory.getPV("loc://an_array(1.0, 2.0, 3, 4)");
    // The per-element PVs that will be bound to the array
    final AtomicReference<List<RuntimePV>> element_pvs = new AtomicReference<>();
    final CountDownLatch got_element_pvs = new CountDownLatch(1);
    // Listener to the ArrayPVDispatcher
    final Listener dispatch_listener = new Listener() {

        @Override
        public void arrayChanged(final List<RuntimePV> pvs) {
            System.out.println("Per-element PVs: ");
            element_pvs.set(pvs);
            dump(pvs);
            got_element_pvs.countDown();
        }
    };
    final ArrayPVDispatcher dispatcher = new ArrayPVDispatcher(array_pv, "elementA247FE_", dispatch_listener);
    // Await initial set of per-element PVs
    got_element_pvs.await();
    assertThat(VTypeUtil.getValueNumber(element_pvs.get().get(0).read()).doubleValue(), equalTo(1.0));
    assertThat(VTypeUtil.getValueNumber(element_pvs.get().get(1).read()).doubleValue(), equalTo(2.0));
    assertThat(VTypeUtil.getValueNumber(element_pvs.get().get(2).read()).doubleValue(), equalTo(3.0));
    assertThat(VTypeUtil.getValueNumber(element_pvs.get().get(3).read()).doubleValue(), equalTo(4.0));
    // Change array -> Observe update of per-element PV
    System.out.println("Updating array");
    array_pv.write(new double[] { 1.0, 22.5, 3, 4 });
    dump(element_pvs.get());
    // On one hand, this changed only one array element.
    // On the other hand, it's a new array value with a new time stamp.
    // Unclear if the array dispatcher should detect this and only update
    // the per-element PVs that really have a new value, or all.
    // Currently it updates all, but the test is satisfied with just one update:
    assertThat(VTypeUtil.getValueNumber(element_pvs.get().get(1).read()).doubleValue(), equalTo(22.5));
    // Change per-element PV -> Observe update of array
    System.out.println("Updating per-element PV for element [2]");
    element_pvs.get().get(2).write(30.7);
    // Test assumes a local array PV which immediately reflects the change.
    // A "real" PV can have a delay between writing a new value and receiving the update.
    final ListNumber array_value = ((VNumberArray) array_pv.read()).getData();
    System.out.println("Array: " + array_value);
    assertThat(array_value.getDouble(2), equalTo(30.7));
    // Close dispatcher
    dispatcher.close();
    // Close the array PV
    PVFactory.releasePV(array_pv);
}