Examples with LayoutMetaDataService org.eclipse.elk.core.data.LayoutMetaDataService used on opensource projects

Example 1 with LayoutMetaDataService

use of org.eclipse.elk.core.data.LayoutMetaDataService in project elk by eclipse.

the class LayoutOptionLabelProvider method getText.

@Override
@SuppressWarnings("rawtypes")
public String getText(final Object element) {
    switch(optionData.getType()) {
        case STRING:
            if (CoreOptions.ALGORITHM.equals(optionData) || optionData.getId().equals(LayoutPropertyDescriptor.DISCO_LAYOUT_ALG_ID)) {
                LayoutMetaDataService layoutDataService = LayoutMetaDataService.getInstance();
                LayoutAlgorithmData algorithmData = layoutDataService.getAlgorithmData((String) element);
                if (algorithmData != null) {
                    String bundleName = algorithmData.getBundleName();
                    if (bundleName == null) {
                        return algorithmData.getName();
                    } else {
                        return algorithmData.getName() + " (" + bundleName + ")";
                    }
                }
                return Messages.getString("elk.ui.8");
            }
            break;
        case BOOLEAN:
            if (element instanceof Boolean) {
                return ((Boolean) element).toString();
            }
        // fall through so the same method as for enums is applied
        case ENUM:
            if (element instanceof Integer) {
                return optionData.getChoices()[(Integer) element];
            }
            break;
        case ENUMSET:
            if (element instanceof String) {
                return (String) element;
            } else if (element instanceof String[]) {
                String[] arr = (String[]) element;
                if (arr.length == 0) {
                    return "";
                } else {
                    StringBuilder builder = new StringBuilder();
                    for (String s : arr) {
                        builder.append(", ").append(s);
                    }
                    return builder.substring(2);
                }
            } else if (element instanceof EnumSet) {
                EnumSet set = (EnumSet) element;
                if (set.isEmpty()) {
                    return "";
                }
                StringBuilder builder = new StringBuilder();
                for (Object o : set) {
                    builder.append(", " + ((Enum) o).name());
                }
                return builder.substring(2);
            }
    }
    return element.toString();
}

Example 2 with LayoutMetaDataService

use of org.eclipse.elk.core.data.LayoutMetaDataService in project elk by eclipse.

the class LayoutPropertySource method getPropertyValue.

@Override
public Object getPropertyValue(final Object id) {
    LayoutMetaDataService layoutServices = LayoutMetaDataService.getInstance();
    LayoutOptionData optionData = layoutServices.getOptionData((String) id);
    if (optionData != null) {
        Object value = configManager.getOptionValue(optionData, layoutConfig);
        return translateToUI(value, optionData);
    }
    return null;
}

Example 3 with LayoutMetaDataService

use of org.eclipse.elk.core.data.LayoutMetaDataService in project elk by eclipse.

the class ElkServicePlugin method loadLayoutProvidersThroughJavaServices.

// //////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Service and Extension Point Loading
/**
 * Creates a new instance, loading the extension point information in the process.
 */
@SuppressWarnings("unchecked")
private void loadLayoutProvidersThroughJavaServices() {
    Set<Class<? extends ILayoutMetaDataProvider>> providerClasses = new HashSet<>();
    // Gather the classes of all ILayoutMetaDataProvider implementations
    for (Bundle bundle : getBundle().getBundleContext().getBundles()) {
        try {
            URL providerFile = bundle.getResource("/META-INF/services/" + ILayoutMetaDataProvider.class.getCanonicalName());
            if (providerFile != null) {
                BufferedReader reader = new BufferedReader(new InputStreamReader(providerFile.openStream()));
                // Read the class names of all implementations that we can find
                String line = reader.readLine();
                while (line != null) {
                    providerClasses.add((Class<? extends ILayoutMetaDataProvider>) bundle.loadClass(line));
                    line = reader.readLine();
                }
            }
        } catch (Exception e) {
        }
    }
    // Try instantiating and registering all of those classes
    LayoutMetaDataService service = LayoutMetaDataService.getInstance();
    for (Class<? extends ILayoutMetaDataProvider> providerClass : providerClasses) {
        ILayoutMetaDataProvider provider;
        try {
            provider = providerClass.getConstructor().newInstance();
            service.registerLayoutMetaDataProviders(provider);
        } catch (Exception e) {
        }
    }
}

Example 4 with LayoutMetaDataService

use of org.eclipse.elk.core.data.LayoutMetaDataService in project elk by eclipse.

the class LayoutConfigurationManager method configureElement.

/**
 * Transfer option values from the given configuration store to a configurator using the given graph
 * element as key.
 */
protected void configureElement(final ElkGraphElement element, final ILayoutConfigurationStore configStore, final LayoutConfigurator configurator) {
    LayoutMetaDataService layoutDataService = LayoutMetaDataService.getInstance();
    for (String optionId : configStore.getAffectedOptions()) {
        Object value = configStore.getOptionValue(optionId);
        LayoutOptionData optionData = layoutDataService.getOptionData(optionId);
        if (optionData != null && value != null) {
            if (value instanceof String) {
                value = optionData.parseValue((String) value);
            }
            configurator.configure(element).setProperty(optionData, value);
        }
    }
}

Example 5 with LayoutMetaDataService

use of org.eclipse.elk.core.data.LayoutMetaDataService in project elk by eclipse.

the class ScanlineOverlapRemovalTest method scanlineTest.

/**
 * Test whether the {@link ScanlineOverlapCheck} supports the overlap removal to find all
 * overlaps in a special case.
 */
@Test
public void scanlineTest() {
    // build test graphs
    ElkNode graph1 = ElkGraphUtil.createGraph();
    ElkNode n0 = ElkGraphUtil.createNode(graph1);
    ElkNode n1 = ElkGraphUtil.createNode(graph1);
    ElkNode n2 = ElkGraphUtil.createNode(graph1);
    ElkNode n3 = ElkGraphUtil.createNode(graph1);
    n0.setDimensions(160, 20);
    n1.setDimensions(160, 20);
    n2.setDimensions(20, 20);
    n3.setDimensions(20, 20);
    n0.setLocation(0, 30);
    n1.setLocation(150, 40);
    n2.setLocation(150, 0);
    n3.setLocation(150, 70);
    graph1.setProperty(CoreOptions.ALGORITHM, SporeOverlapRemovalOptions.ALGORITHM_ID);
    Copier copier = new Copier();
    ElkNode graph2 = (ElkNode) copier.copy(graph1);
    graph2.setProperty(SporeOverlapRemovalOptions.OVERLAP_REMOVAL_RUN_SCANLINE, false);
    // execute overlap removal with and without ScanlineOverlapCheck
    LayoutMetaDataService lService = LayoutMetaDataService.getInstance();
    lService.registerLayoutMetaDataProviders(new SporeMetaDataProvider());
    RecursiveGraphLayoutEngine lEngine = new RecursiveGraphLayoutEngine();
    lEngine.layout(graph1, new BasicProgressMonitor());
    lEngine.layout(graph2, new BasicProgressMonitor());
    // test
    assertFalse(hasOverlaps(graph1));
    assertTrue(hasOverlaps(graph2));
}