Examples with ITextRegion org.eclipse.xtext.util.ITextRegion used on opensource projects

Example 96 with ITextRegion

use of org.eclipse.xtext.util.ITextRegion in project xtext-eclipse by eclipse.

the class DefaultFoldingRegionProvider method computeObjectFolding.

/**
 * @since 2.8
 */
protected void computeObjectFolding(EObject eObject, IFoldingRegionAcceptor<ITextRegion> foldingRegionAcceptor, boolean initiallyFolded) {
    ITextRegion region = locationInFileProvider.getFullTextRegion(eObject);
    if (region != null) {
        ITextRegion significant = locationInFileProvider.getSignificantTextRegion(eObject);
        if (significant == null)
            throw new NullPointerException("significant region may not be null");
        int offset = region.getOffset();
        ((IFoldingRegionAcceptorExtension<ITextRegion>) foldingRegionAcceptor).accept(offset, region.getLength(), initiallyFolded, significant);
    }
}

Example 97 with ITextRegion

use of org.eclipse.xtext.util.ITextRegion in project xtext-eclipse by eclipse.

the class DefaultFoldingRegionProvider method computeCommentFolding.

/**
 * @since 2.8
 */
protected void computeCommentFolding(IXtextDocument xtextDocument, IFoldingRegionAcceptor<ITextRegion> foldingRegionAcceptor, ITypedRegion typedRegion, boolean initiallyFolded) throws BadLocationException {
    int offset = typedRegion.getOffset();
    int length = typedRegion.getLength();
    Matcher matcher = getTextPatternInComment().matcher(xtextDocument.get(offset, length));
    if (matcher.find()) {
        TextRegion significant = new TextRegion(offset + matcher.start(), 0);
        ((IFoldingRegionAcceptorExtension<ITextRegion>) foldingRegionAcceptor).accept(offset, length, initiallyFolded, significant);
    } else {
        ((IFoldingRegionAcceptorExtension<ITextRegion>) foldingRegionAcceptor).accept(offset, length, initiallyFolded);
    }
}

Example 98 with ITextRegion

use of org.eclipse.xtext.util.ITextRegion in project xtext-eclipse by eclipse.

the class AbstractEObjectHover method getXtextElementAt.

/**
 * Call this method only from within an IUnitOfWork
 */
protected Pair<EObject, IRegion> getXtextElementAt(XtextResource resource, final int offset) {
    // check for cross reference
    EObject crossLinkedEObject = eObjectAtOffsetHelper.resolveCrossReferencedElementAt(resource, offset);
    if (crossLinkedEObject != null) {
        if (!crossLinkedEObject.eIsProxy()) {
            IParseResult parseResult = resource.getParseResult();
            if (parseResult != null) {
                ILeafNode leafNode = NodeModelUtils.findLeafNodeAtOffset(parseResult.getRootNode(), offset);
                if (leafNode != null && leafNode.isHidden() && leafNode.getOffset() == offset) {
                    leafNode = NodeModelUtils.findLeafNodeAtOffset(parseResult.getRootNode(), offset - 1);
                }
                if (leafNode != null) {
                    ITextRegion leafRegion = leafNode.getTextRegion();
                    return Tuples.create(crossLinkedEObject, (IRegion) new Region(leafRegion.getOffset(), leafRegion.getLength()));
                }
            }
        }
    } else {
        EObject o = eObjectAtOffsetHelper.resolveElementAt(resource, offset);
        if (o != null) {
            ITextRegion region = locationInFileProvider.getSignificantTextRegion(o);
            final IRegion region2 = new Region(region.getOffset(), region.getLength());
            if (TextUtilities.overlaps(region2, new Region(offset, 0)))
                return Tuples.create(o, region2);
        }
    }
    return null;
}

Example 99 with ITextRegion

use of org.eclipse.xtext.util.ITextRegion in project xtext-eclipse by eclipse.

the class TraceBasedOpenerContributor method collectOpeners.

private void collectOpeners(IEclipseTrace trace, ITextRegion region, IAcceptor<FileOpener> acceptor) {
    Iterable<? extends ILocationInEclipseResource> locations = null;
    if (region != null)
        locations = trace.getAllAssociatedLocations(region);
    if (locations == null || Iterables.isEmpty(locations))
        locations = trace.getAllAssociatedLocations();
    Map<IStorage, ITextRegion> result = Maps.newHashMap();
    for (ILocationInEclipseResource location : locations) {
        IStorage storage = location.getPlatformResource();
        if (storage != null) {
            ITextRegion old = result.put(storage, location.getTextRegion());
            if (old != null) {
                ITextRegion merged = old.merge(location.getTextRegion());
                result.put(storage, merged);
            }
        }
    }
    for (Map.Entry<IStorage, ITextRegion> e : result.entrySet()) {
        IStorage storage = e.getKey();
        ITextRegion textRegion = e.getValue();
        acceptor.accept(createStorageBasedTextEditorOpener(storage, textRegion));
    }
}

Example 100 with ITextRegion

use of org.eclipse.xtext.util.ITextRegion in project xtext-eclipse by eclipse.

the class ParameterContextInformationProvider method getContextInformation.

@Override
public void getContextInformation(ContentAssistContext context, IContextInformationAcceptor acceptor) {
    XExpression containerCall = getContainerCall(eObjectAtOffsetHelper.resolveContainedElementAt(context.getResource(), context.getOffset()));
    LightweightTypeReferenceFactory factory = proposalProvider.getTypeConverter(context.getResource());
    if (containerCall != null) {
        ICompositeNode containerCallNode = NodeModelUtils.findActualNodeFor(containerCall);
        ITextRegion containerCallRegion = containerCallNode.getTextRegion();
        if (containerCallRegion.getOffset() > context.getOffset() || containerCallRegion.getOffset() + containerCallRegion.getLength() < context.getOffset())
            return;
        JvmIdentifiableElement calledFeature = getCalledFeature(containerCall);
        if (calledFeature instanceof JvmExecutable) {
            if (getParameterListOffset(containerCall) > context.getOffset())
                return;
            ParameterData parameterData = new ParameterData();
            IScope scope = getScope(containerCall);
            QualifiedName qualifiedName = QualifiedName.create(getCalledFeatureName(containerCall));
            boolean candidatesFound = false;
            for (IEObjectDescription element : scope.getElements(qualifiedName)) {
                if (element instanceof IIdentifiableElementDescription) {
                    IIdentifiableElementDescription featureDescription = (IIdentifiableElementDescription) element;
                    JvmIdentifiableElement featureCandidate = featureDescription.getElementOrProxy();
                    if (featureCandidate instanceof JvmExecutable) {
                        JvmExecutable executable = (JvmExecutable) featureCandidate;
                        if (!executable.getParameters().isEmpty()) {
                            StyledString styledString = new StyledString();
                            proposalProvider.appendParameters(styledString, executable, featureDescription.getNumberOfIrrelevantParameters(), factory);
                            parameterData.addOverloaded(styledString.toString(), executable.isVarArgs());
                            candidatesFound = true;
                        }
                    }
                }
            }
            if (candidatesFound) {
                StyledString displayString = proposalProvider.getStyledDisplayString((JvmExecutable) calledFeature, true, 0, qualifiedNameConverter.toString(qualifiedNameProvider.getFullyQualifiedName(calledFeature)), calledFeature.getSimpleName(), factory);
                ParameterContextInformation parameterContextInformation = new ParameterContextInformation(parameterData, displayString.toString(), getParameterListOffset(containerCall), context.getOffset());
                acceptor.accept(parameterContextInformation);
            }
        }
    }
}