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Diffstat (limited to 'bundles/org.eclipse.wst.sse.ui/src/org/eclipse/wst/sse/ui/internal/style/SemanticHighlightingReconciler.java')
| -rw-r--r-- | bundles/org.eclipse.wst.sse.ui/src/org/eclipse/wst/sse/ui/internal/style/SemanticHighlightingReconciler.java | 296 |
1 files changed, 0 insertions, 296 deletions
diff --git a/bundles/org.eclipse.wst.sse.ui/src/org/eclipse/wst/sse/ui/internal/style/SemanticHighlightingReconciler.java b/bundles/org.eclipse.wst.sse.ui/src/org/eclipse/wst/sse/ui/internal/style/SemanticHighlightingReconciler.java deleted file mode 100644 index 8318c97b90..0000000000 --- a/bundles/org.eclipse.wst.sse.ui/src/org/eclipse/wst/sse/ui/internal/style/SemanticHighlightingReconciler.java +++ /dev/null @@ -1,296 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2009, 2011 IBM Corporation and others. - * All rights reserved. This program and the accompanying materials - * are made available under the terms of the Eclipse Public License v1.0 - * which accompanies this distribution, and is available at - * http://www.eclipse.org/legal/epl-v10.html - * - * Contributors: - * IBM Corporation - initial API and implementation - *******************************************************************************/ -package org.eclipse.wst.sse.ui.internal.style; - -import java.util.ArrayList; -import java.util.List; - -import org.eclipse.core.runtime.IProgressMonitor; -import org.eclipse.core.runtime.IStatus; -import org.eclipse.core.runtime.Status; -import org.eclipse.core.runtime.jobs.Job; -import org.eclipse.jface.text.IDocument; -import org.eclipse.jface.text.IRegion; -import org.eclipse.jface.text.ITextViewer; -import org.eclipse.jface.text.Position; -import org.eclipse.jface.text.Region; -import org.eclipse.jface.text.TextPresentation; -import org.eclipse.jface.text.reconciler.DirtyRegion; -import org.eclipse.jface.text.reconciler.IReconcilingStrategy; -import org.eclipse.jface.text.reconciler.IReconcilingStrategyExtension; -import org.eclipse.swt.widgets.Control; -import org.eclipse.swt.widgets.Display; -import org.eclipse.wst.sse.core.internal.model.ModelManagerImpl; -import org.eclipse.wst.sse.core.internal.provisional.IStructuredModel; -import org.eclipse.wst.sse.core.internal.provisional.text.IStructuredDocument; -import org.eclipse.wst.sse.core.internal.provisional.text.IStructuredDocumentRegion; -import org.eclipse.wst.sse.ui.ISemanticHighlighting; -import org.eclipse.wst.sse.ui.ISemanticHighlightingExtension; -import org.eclipse.wst.sse.ui.internal.Logger; -import org.eclipse.wst.sse.ui.internal.style.SemanticHighlightingManager.HighlightedPosition; -import org.eclipse.wst.sse.ui.internal.style.SemanticHighlightingManager.HighlightingStyle; - -/** - * Semantic highlighting reconciler for Structured Source Editors. Based on - * org.eclipse.jdt.internal.ui.javaeditor.SemanticHighlightingReconciler - * - * @since 3.1 - */ -public class SemanticHighlightingReconciler implements IReconcilingStrategy, IReconcilingStrategyExtension { - - private IDocument fDocument; - - private ITextViewer fViewer; - private SemanticHighlightingPresenter fPresenter; - private ISemanticHighlighting[] fSemanticHighlightings; - private HighlightingStyle[] fHighlightings; - - private List fAddedPositions = new ArrayList(); - private List fRemovedPositions = new ArrayList(); - /** Number of removed positions */ - private int fNOfRemovedPositions; - - /** Background job */ - private Job fJob; - /** Background job lock */ - private final Object fJobLock = new Object(); - - /** Reconcile operation lock. */ - private final Object fReconcileLock = new Object(); - private boolean fIsReconciling = false; - /** The semantic highlighting presenter - cache for background thread, only valid during {@link #reconcile(IRegion)} */ - private SemanticHighlightingPresenter fJobPresenter; - /** Semantic highlightings - cache for background thread, only valid during {@link #reconcile(IRegion)} */ - private ISemanticHighlighting[] fJobSemanticHighlightings; - /** HighlightingStyle - cache for background thread, only valid during {@link #reconcile(IRegion)} */ - private HighlightingStyle[] fJobHighlightings; - - private boolean fIsInstalled; - - public void install(ITextViewer sourceViewer, SemanticHighlightingPresenter presenter, ISemanticHighlighting[] semanticHighlightings, HighlightingStyle[] highlightings) { - fViewer = sourceViewer; - fPresenter = presenter; - fSemanticHighlightings = semanticHighlightings; - fHighlightings = highlightings; - fIsInstalled = true; - } - - public void uninstall() { - fIsInstalled = false; - fViewer = null; - fPresenter = null; - fSemanticHighlightings = null; - fHighlightings = null; - } - - public void reconcile(IRegion partition) { - // ensure at most one thread can be reconciling at any time - synchronized (fReconcileLock) { - if (fIsReconciling) - return; - else - fIsReconciling= true; - } - fJobPresenter = fPresenter; - fJobSemanticHighlightings = fSemanticHighlightings; - fJobHighlightings = fHighlightings; - IStructuredModel model = null; - try { - if (fJobPresenter == null || fJobSemanticHighlightings == null || fJobHighlightings == null || fDocument == null) - return; - - fJobPresenter.setCanceled(false); - - startReconcilingPositions(); - IStructuredDocument document = (IStructuredDocument) fDocument; - model = ModelManagerImpl.getInstance().getModelForRead(document); - IStructuredDocumentRegion[] regions = document.getStructuredDocumentRegions(partition.getOffset(), partition.getLength()); - for (int i = 0; i < regions.length && fIsInstalled; i++) { - if (document.containsReadOnly(regions[i].getStartOffset(), regions[i].getLength())) - addPosition(new Position(regions[i].getStartOffset(), regions[i].getLength()), null, true); - else { - for (int j = 0; j < fJobSemanticHighlightings.length && fIsInstalled; j++) { - if (fJobHighlightings[j].isEnabled()) { - Position[] consumes = null; - if (fJobSemanticHighlightings[j] instanceof ISemanticHighlightingExtension && model != null) { - consumes = ((ISemanticHighlightingExtension) fJobSemanticHighlightings[j]).consumes(regions[i], model.getIndexedRegion(regions[i].getStartOffset())); - } - else { - consumes = fJobSemanticHighlightings[j].consumes(regions[i]); - } - if (consumes != null) { - for (int k = 0; k < consumes.length; k++) - addPosition(consumes[k], fJobHighlightings[j]); - } - } - } - } - } - - if (fIsInstalled) { - List oldPositions = fRemovedPositions; - List newPositions = new ArrayList(fNOfRemovedPositions); - for (int i = 0, n = oldPositions.size(); i < n && fIsInstalled; i++) { - Object current = oldPositions.get(i); - if (current != null) - newPositions.add(current); - } - fRemovedPositions = newPositions; - - TextPresentation presentation = null; - if (!fJobPresenter.isCanceled()) - presentation = fJobPresenter.createPresentation(fAddedPositions, fRemovedPositions); - if (!fJobPresenter.isCanceled()) - updatePresentation(presentation, fAddedPositions, fRemovedPositions); - } - stopReconcilingPositions(); - } - finally { - fJobPresenter= null; - fJobSemanticHighlightings= null; - fJobHighlightings= null; - if (model != null) - model.releaseFromRead(); - synchronized (fReconcileLock) { - fIsReconciling= false; - } - } - } - - private void addPosition(Position position, HighlightingStyle highlighting) { - addPosition(position, highlighting, false); - } - - private void addPosition(Position position, HighlightingStyle highlighting, boolean isReadOnly) { - boolean isExisting = false; - // TODO: use binary search - for (int i = 0, n = fRemovedPositions.size(); i < n; i++) { - HighlightedPosition highlightedPosition = (HighlightedPosition) fRemovedPositions.get(i); - if (highlightedPosition == null) - continue; - if (highlightedPosition.isEqual(position, highlighting)) { - isExisting = true; - fRemovedPositions.set(i, null); - fNOfRemovedPositions--; - break; - } - } - if (!isExisting) { - fAddedPositions.add(fJobPresenter.createHighlightedPosition(position, highlighting, isReadOnly)); - } - } - - /** - * Update the presentation. - * - * @param textPresentation - * the text presentation - * @param addedPositions - * the added positions - * @param removedPositions - * the removed positions - */ - private void updatePresentation(TextPresentation textPresentation, List addedPositions, List removedPositions) { - Runnable runnable = fJobPresenter.createUpdateRunnable(textPresentation, addedPositions, removedPositions); - if (runnable == null) - return; - - if (fViewer == null) - return; - - Control viewerControl = fViewer.getTextWidget(); - if (viewerControl == null) - return; - - Display display = viewerControl.getDisplay(); - if (display == null || display.isDisposed()) - return; - - display.asyncExec(runnable); - } - - /** - * Start reconciling positions. - */ - private void startReconcilingPositions() { - fJobPresenter.addAllPositions(fRemovedPositions); - fNOfRemovedPositions = fRemovedPositions.size(); - } - - /** - * Stop reconciling positions. - */ - private void stopReconcilingPositions() { - fRemovedPositions.clear(); - fNOfRemovedPositions = 0; - fAddedPositions.clear(); - } - - public void reconcile(DirtyRegion dirtyRegion, IRegion subRegion) { - reconcile(dirtyRegion); - } - - public void setDocument(IDocument document) { - fDocument = document; -// refresh(); - } - - public void initialReconcile() { - // Do nothing - } - - public void setProgressMonitor(IProgressMonitor monitor) { - } - - /** - * Schedule a background job for reconciling the Semantic Highlighting model. - */ - private void scheduleJob() { - synchronized (fJobLock) { - final Job oldJob= fJob; - if (fJob != null) { - fJob.cancel(); - fJob= null; - } - - fJob= new Job("Semantic Highlighting Job") { - protected IStatus run(IProgressMonitor monitor) { - if (oldJob != null) { - try { - oldJob.join(); - } catch (InterruptedException e) { - Logger.logException(e); - return Status.CANCEL_STATUS; - } - } - if (monitor.isCanceled()) - return Status.CANCEL_STATUS; - - reconcile(new Region(0, fDocument.getLength())); - synchronized (fJobLock) { - // allow the job to be gc'ed - if (fJob == this) - fJob= null; - } - return Status.OK_STATUS; - } - }; - fJob.setSystem(true); - fJob.setPriority(Job.DECORATE); - fJob.schedule(); - } - } - - public void refresh() { - if (fDocument != null) - scheduleJob(); - } -} |