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

Example 1 with VEnum

use of org.diirt.vtype.VEnum in project yamcs-studio by yamcs.

the class LocalChannelHandler method write.

@Override
public void write(Object newValue, ChannelWriteCallback callback) {
    try {
        if (VEnum.class.equals(type)) {
            // Handle enum writes
            int newIndex = -1;
            VEnum firstEnum = (VEnum) initialValue;
            List<String> labels = firstEnum.getLabels();
            if (newValue instanceof Number) {
                newIndex = ((Number) newValue).intValue();
            } else if (newValue instanceof String) {
                newIndex = labels.indexOf((String) newValue);
                // parse a number.
                if (newIndex == -1) {
                    String value = (String) newValue;
                    try {
                        newIndex = Double.valueOf(value).intValue();
                    } catch (NumberFormatException ex) {
                    }
                }
            } else {
                throw new IllegalArgumentException("Value" + newValue + " can not be accepted by VEnum.");
            }
            newValue = ValueFactory.newVEnum(newIndex, firstEnum.getLabels(), alarmNone(), timeNow());
        } else if (VString.class.equals(type) && newValue instanceof String) {
            newValue = ValueFactory.newVString((String) newValue, alarmNone(), timeNow());
        } else {
            // If the string can be parsed to a number, do it
            if (newValue instanceof String) {
                String value = (String) newValue;
                try {
                    newValue = Double.valueOf(value);
                } catch (NumberFormatException ex) {
                // Not a double - continue
                }
            }
            // If new value is not a VType, try to convert it
            if (!(newValue instanceof VType)) {
                newValue = checkValue(ValueFactory.toVTypeChecked(newValue));
            }
        }
        processMessage(newValue);
        callback.channelWritten(null);
    } catch (Exception ex) {
        callback.channelWritten(ex);
    }
}

Example 2 with VEnum

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

the class RadioRepresentation method selectionChanged.

private void selectionChanged(final ObservableValue<? extends Toggle> obs, final Toggle oldval, final Toggle newval) {
    if (!active && newval != null) {
        active = true;
        try {
            // For now reset to old value.
            // New value will be shown if the PV accepts it and sends a value update.
            toggle.selectToggle(oldval);
            final Object value;
            final VType pv_value = model_widget.runtimePropValue().getValue();
            if (pv_value instanceof VEnum || pv_value instanceof VNumber)
                // PV uses enumerated or numeric type, so write the index
                value = toggle.getToggles().indexOf(newval);
            else
                // PV uses text
                value = FormatOptionHandler.parse(pv_value, ((RadioButton) newval).getText(), FormatOption.DEFAULT);
            logger.log(Level.FINE, "Writing " + value);
            toolkit.fireWrite(model_widget, value);
        } finally {
            active = false;
        }
    }
}

Example 3 with VEnum

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

the class ValueUtil method getLabels.

/**
 * Get labels for a {@link VEnum} value, or headers for a {@link VTable}.
 *  @param value Value of a PV
 *  @return Enum labels or empty array if not enum nor table
 */
public static String[] getLabels(final VType value) {
    if (value instanceof VEnum) {
        final List<String> labels = ((VEnum) value).getLabels();
        return labels.toArray(new String[labels.size()]);
    }
    if (value instanceof VTable) {
        final VTable table = (VTable) value;
        final int num = table.getColumnCount();
        final String[] headers = new String[num];
        for (int i = 0; i < num; ++i) headers[i] = table.getColumnName(i);
        return headers;
    }
    return new String[0];
}

Example 4 with VEnum

use of org.diirt.vtype.VEnum in project yamcs-studio by yamcs.

the class AbstractChoiceEditPart method registerLoadItemsListener.

/**
 */
private void registerLoadItemsListener() {
    // load items from PV
    if (getExecutionMode() == ExecutionMode.RUN_MODE) {
        if (getWidgetModel().isItemsFromPV()) {
            IPV pv = getPV(AbstractPVWidgetModel.PROP_PVNAME);
            if (pv != null) {
                if (loadItemsFromPVListener == null)
                    loadItemsFromPVListener = new IPVListener.Stub() {

                        @Override
                        public void valueChanged(IPV pv) {
                            VType value = pv.getValue();
                            if (value != null && value instanceof VEnum) {
                                List<String> new_meta = ((VEnum) value).getLabels();
                                getWidgetModel().setPropertyValue(AbstractChoiceModel.PROP_ITEMS, new_meta);
                            }
                        }
                    };
                pv.addListener(loadItemsFromPVListener);
            }
        }
    }
}

Example 5 with VEnum

use of org.diirt.vtype.VEnum in project yamcs-studio by yamcs.

the class ComboEditPart method registerLoadItemsListener.

/**
 */
private void registerLoadItemsListener() {
    // load items from PV
    if (getExecutionMode() == ExecutionMode.RUN_MODE) {
        if (getWidgetModel().isItemsFromPV()) {
            IPV pv = getPV(AbstractPVWidgetModel.PROP_PVNAME);
            if (pv != null) {
                if (loadItemsFromPVListener == null)
                    loadItemsFromPVListener = new IPVListener.Stub() {

                        @Override
                        public void valueChanged(IPV pv) {
                            VType value = pv.getValue();
                            if (value != null && value instanceof VEnum) {
                                List<String> items = ((VEnum) value).getLabels();
                                getWidgetModel().setPropertyValue(ComboModel.PROP_ITEMS, items);
                            }
                        }
                    };
                pv.addListener(loadItemsFromPVListener);
            }
        }
    }
}