Examples with DataValueRendererFactory org.knime.core.data.renderer.DataValueRendererFactory used on opensource projects

Example 6 with DataValueRendererFactory

use of org.knime.core.data.renderer.DataValueRendererFactory in project knime-core by knime.

the class DataType method getRendererFactories.

/**
 * Returns the list of registered renderer factories, using an extension point driven mechanism to collect all
 * instances registered with the implemented data value interfaces. If no renderer was declared by the
 * {@link org.knime.core.data.DataValue} interfaces, this method will make sure that at least a default renderer
 * (using the {@link DataCell#toString()} method) is returned.
 *
 * @return an ordered, non-empty collection of factories.
 * @since 2.12
 */
public Collection<DataValueRendererFactory> getRendererFactories() {
    Map<String, DataValueRendererFactory> map = new LinkedHashMap<>();
    Collection<Class<? extends DataValue>> allValueClasses = new LinkedHashSet<>();
    // first value will be the preferred one - if any
    allValueClasses.addAll(m_valueClasses);
    allValueClasses.addAll(m_adapterValueList);
    for (Class<? extends DataValue> cl : allValueClasses) {
        UtilityFactory fac = getUtilityFor(cl);
        if (!(fac instanceof ExtensibleUtilityFactory)) {
            continue;
        }
        ExtensibleUtilityFactory efac = (ExtensibleUtilityFactory) fac;
        // make sure the preferred and default renderers come first
        DataValueRendererFactory prefRendererFac = efac.getPreferredRenderer();
        if (prefRendererFac != null) {
            map.put(prefRendererFac.getId(), prefRendererFac);
        }
        DataValueRendererFactory defaultRendererFac = efac.getDefaultRenderer();
        if (defaultRendererFac != null) {
            map.put(defaultRendererFac.getId(), defaultRendererFac);
        }
        for (DataValueRendererFactory rf : efac.getAvailableRenderers()) {
            map.put(rf.getId(), rf);
        }
    }
    if (map.isEmpty()) {
        DefaultDataValueRenderer.Factory f = new DefaultDataValueRenderer.Factory();
        map.put(f.getId(), f);
    }
    return map.values();
}

Example 7 with DataValueRendererFactory

use of org.knime.core.data.renderer.DataValueRendererFactory in project knime-core by knime.

the class ExtensibleUtilityFactory method getDefaultRenderer.

/**
 * Returns the default renderer for this data value. If no renderer is registered with the data value (highly
 * unlikely) <code>null</code> is returned.
 *
 * @return a renderer factory or <code>null</code>
 */
public DataValueRendererFactory getDefaultRenderer() {
    readRenderersFromExtensionPoint();
    String defaultId = CORE_DEFAULT_PREFS.get(getPreferenceKey(), null);
    DataValueRendererFactory matchedFactory = m_renderers.get(defaultId);
    if (matchedFactory != null) {
        return matchedFactory;
    } else {
        return null;
    }
}

Example 8 with DataValueRendererFactory

use of org.knime.core.data.renderer.DataValueRendererFactory in project knime-core by knime.

the class ExtensibleUtilityFactory method getPreferredRenderer.

/**
 * Returns the preferred renderer for this data value. If no preferred renderer is set for the data value,
 * <code>null</code> is returned.
 *
 * @return a renderer factory or <code>null</code>
 */
public DataValueRendererFactory getPreferredRenderer() {
    readRenderersFromExtensionPoint();
    String prefId = CORE_PREFS.get(getPreferenceKey(), null);
    DataValueRendererFactory matchedFactory = m_renderers.get(prefId);
    if (matchedFactory != null) {
        return matchedFactory;
    } else {
        return null;
    }
}