Examples with ListNumber org.diirt.util.array.ListNumber used on opensource projects

Example 6 with ListNumber

use of org.diirt.util.array.ListNumber in project yamcs-studio by yamcs.

the class PVUtil method getStringArray.

/**
 * Get string array from pv.
 *
 * @param pv
 *            The PV.
 * @return String array. For string array, it's the actual strings. For numeric arrays, the numbers are formatted as
 *         strings. For enum array, the labels are returned. For scalar PVs, an array with a single string is
 *         returned.
 */
public static final String[] getStringArray(IPV pv) {
    final VType value = checkPVValue(pv);
    if (value instanceof VStringArray) {
        final List<String> list = ((VStringArray) value).getData();
        return list.toArray(new String[list.size()]);
    } else if (value instanceof VDoubleArray) {
        final ListNumber list = ((VNumberArray) value).getData();
        final String[] text = new String[list.size()];
        for (int i = 0; i < text.length; ++i) text[i] = Double.toString(list.getDouble(i));
        return text;
    } else if (value instanceof VNumberArray) {
        final ListNumber list = ((VNumberArray) value).getData();
        final String[] text = new String[list.size()];
        for (int i = 0; i < text.length; ++i) text[i] = Long.toString(list.getLong(i));
        return text;
    } else if (value instanceof VEnumArray) {
        final List<String> labels = ((VEnumArray) value).getLabels();
        final ListInt list = ((VEnumArray) value).getIndexes();
        final String[] text = new String[list.size()];
        for (int i = 0; i < text.length; ++i) {
            final int index = list.getInt(i);
            if (index >= 0 && index <= labels.size())
                text[i] = labels.get(index);
            else
                text[i] = "<" + index + ">";
        }
        return text;
    }
    return new String[] { getString(pv) };
}

Example 7 with ListNumber

use of org.diirt.util.array.ListNumber in project org.csstudio.display.builder by kasemir.

the class FormatOptionHandlerTest method testString.

@Test
public void testString() throws Exception {
    // Actual String
    VType value = ValueFactory.newVString("Test1", ValueFactory.alarmNone(), ValueFactory.timeNow());
    String text = FormatOptionHandler.format(value, FormatOption.DEFAULT, -1, true);
    System.out.println(text);
    assertThat(text, equalTo("Test1"));
    text = FormatOptionHandler.format(value, FormatOption.STRING, -1, true);
    System.out.println(text);
    assertThat(text, equalTo("Test1"));
    text = FormatOptionHandler.format(value, FormatOption.EXPONENTIAL, -1, true);
    System.out.println(text);
    assertThat(text, equalTo("Test1"));
    // Number interpreted as char
    value = ValueFactory.newVDouble(65.0, display);
    text = FormatOptionHandler.format(value, FormatOption.STRING, -1, true);
    System.out.println(text);
    assertThat(text, equalTo("A V"));
    // Number array interpreted as long string
    // UTF-8 for 'Hello'
    ListNumber data = new ArrayInt(72, 101, 108, 108, 111);
    value = ValueFactory.newVNumberArray(data, ValueFactory.alarmNone(), ValueFactory.timeNow(), display);
    System.out.println(value);
    text = FormatOptionHandler.format(value, FormatOption.STRING, -1, true);
    System.out.println(text);
    assertThat(text, equalTo("Hello"));
    data = new ArrayInt(/* Dollar */
    0x24, /* Euro */
    0xE2, 0x82, 0xAC);
    value = ValueFactory.newVNumberArray(data, ValueFactory.alarmNone(), ValueFactory.timeNow(), display);
    System.out.println(value);
    text = FormatOptionHandler.format(value, FormatOption.STRING, -1, true);
    System.out.println(text);
    // For this to work, Eclipse IDE Preferences -> General -> Workspace -> Text file encoding
    // must be set to UTF-8, which is the default on Linux but not necessarily Windows
    assertThat(text, equalTo("$€"));
}

Example 8 with ListNumber

use of org.diirt.util.array.ListNumber in project org.csstudio.display.builder by kasemir.

the class FormatOptionHandler method formatTable.

/**
 * Format table as text
 *
 *  <p>A single-row table is formatted as "Col1: value, Col2: value, ...".
 *  Otherwise, table is formatted aligned by width of each column:
 *
 *  <pre>
 *  X     Column 2 Names
 *  3     On       Fred
 *  3.14  Off      Jane
 *  3.345 On       Alan
 *  </pre>
 *
 *  @param table {@link VTable}
 *  @return Textual dump of the table
 */
private static String formatTable(final VTable table) {
    final int rows = table.getRowCount(), cols = table.getColumnCount();
    final String[][] cell = new String[rows + 1][cols];
    final int[] width = new int[cols];
    // Determine string for headers and each table cell
    for (int c = 0; c < cols; ++c) {
        cell[0][c] = table.getColumnName(c);
        // Table columns use ListNumber for ListDouble or an integer-typed ListNumber
        // Otherwise it's a List<?> for String, Instant, alarm, ...
        final Object col = table.getColumnData(c);
        if (col instanceof ListNumber) {
            final ListNumber list = (ListNumber) col;
            if (table.getColumnType(c).equals(Integer.TYPE))
                for (int r = 0; r < list.size(); ++r) cell[1 + r][c] = Integer.toString(list.getInt(r));
            else
                for (int r = 0; r < list.size(); ++r) cell[1 + r][c] = Double.toString(list.getDouble(r));
            for (int r = list.size(); r < rows; ++r) cell[1 + r][c] = "";
        } else {
            final List<?> list = (List<?>) col;
            for (int r = 0; r < list.size(); ++r) // handle null
            cell[1 + r][c] = Objects.toString(list.get(r));
            for (int r = list.size(); r < rows; ++r) cell[1 + r][c] = "";
        }
        // Determine maximum width of all cells in this column
        for (int r = 0; r < rows + 1; ++r) width[c] = Math.max(width[c], cell[r][c].length());
    }
    // Format cells into one big string
    final StringBuilder buf = new StringBuilder();
    if (rows == 1) {
        // Single-row
        for (int c = 0; c < cols; ++c) {
            if (c > 0)
                buf.append(", ");
            buf.append(cell[0][c]);
            buf.append(": ");
            buf.append(cell[1][c]);
        }
    } else {
        // Table header followed by rows
        for (int c = 0; c < cols; ++c) {
            if (c > 0)
                buf.append(' ');
            buf.append(pad(cell[0][c], width[c]));
        }
        for (int r = 1; r < rows + 1; ++r) {
            buf.append('\n');
            for (int c = 0; c < cols; ++c) {
                if (c > 0)
                    buf.append(' ');
                buf.append(pad(cell[r][c], width[c]));
            }
        }
    }
    return buf.toString();
}

Example 9 with ListNumber

use of org.diirt.util.array.ListNumber in project org.csstudio.display.builder by kasemir.

the class ImagePlot method setCrosshairLocation.

/**
 * Set location of crosshair
 *  @param x_val
 *  @param y_val
 */
public void setCrosshairLocation(final double x_val, final double y_val, final RTImagePlotListener listener) {
    if (Double.isNaN(x_val) || Double.isNaN(y_val)) {
        if (crosshair_position == null)
            return;
        crosshair_position = null;
        if (listener != null)
            listener.changedCursorInfo(Double.NaN, Double.NaN, -1, -1, Double.NaN);
        requestRedraw();
        return;
    }
    final Point2D pos = new Point2D(x_val, y_val);
    if (pos.equals(crosshair_position))
        return;
    crosshair_position = pos;
    if (listener != null)
        listener.changedCrosshair(x_val, y_val);
    // Location as coordinate in image
    // No "+0.5" rounding! Truncate to get full pixel offsets,
    // don't jump to next pixel when mouse moves beyond 'half' of the current pixel.
    // Use -1 to mark location outside of data width resp. height.
    int image_x = (int) (data_width * (x_val - min_x) / (max_x - min_x));
    if (image_x < 0)
        image_x = -1;
    else if (image_x >= data_width)
        image_x = -1;
    // Mouse and image coords for Y go 'down'
    int image_y = (int) (data_height * (max_y - y_val) / (max_y - min_y));
    if (image_y < 0)
        image_y = -1;
    else if (image_y >= data_height)
        image_y = -1;
    final ListNumber data = image_data;
    double pixel = Double.NaN;
    if (data != null && image_x >= 0 && image_y >= 0) {
        final int offset = image_x + image_y * data_width;
        try {
            if (unsigned_data) {
                if (data instanceof ArrayByte)
                    pixel = Byte.toUnsignedInt(data.getByte(offset));
                else if (data instanceof ArrayShort)
                    pixel = Short.toUnsignedInt(data.getShort(offset));
                else if (data instanceof ArrayInt)
                    pixel = Integer.toUnsignedLong(data.getInt(offset));
                else
                    pixel = data.getDouble(offset);
            } else
                pixel = data.getDouble(offset);
        } catch (Throwable ex) {
            // Catch ArrayIndexOutOfBoundsException or other internal errors of ListNumber
            logger.log(Level.WARNING, "Error accessing pixel " + image_x + ", " + image_y + " of data with size " + data.size());
        // leave pixel == Double.NaN;
        }
    }
    if (listener != null)
        listener.changedCursorInfo(x_val, y_val, image_x, image_y, pixel);
    requestRedraw();
}

Example 10 with ListNumber

use of org.diirt.util.array.ListNumber 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) };
}