| /******************************************************************************* |
| * Copyright (c) 2008 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.provisional.style; |
| |
| import java.util.HashMap; |
| import java.util.Iterator; |
| import java.util.Map; |
| |
| import org.eclipse.core.runtime.Platform; |
| import org.eclipse.jface.text.ITextViewer; |
| import org.eclipse.wst.sse.core.internal.provisional.text.IStructuredDocument; |
| import org.eclipse.wst.sse.ui.internal.ExtendedConfigurationBuilder; |
| import org.eclipse.wst.sse.ui.internal.Logger; |
| |
| public class ReconcilerHighlighter { |
| |
| private static final String LINE_STYLE_PROVIDER_EXTENDED_ID = Highlighter.LINE_STYLE_PROVIDER_EXTENDED_ID; |
| |
| private Map fTableOfProviders = null; |
| |
| private Map fExtendedProviders = null; |
| |
| private ITextViewer fTextViewer = null; |
| |
| private final static boolean _trace = Boolean.valueOf(Platform.getDebugOption("org.eclipse.wst.sse.ui/structuredPresentationReconciler")).booleanValue(); //$NON-NLS-1$ |
| private final static String TRACE_PREFIX = "StructuredPresentationReconciler: "; //$NON-NLS-1$ |
| private long time0; |
| |
| /** |
| * instance for older LineStyleProviders loaded by extension point, |
| * created if needed |
| */ |
| private CompatibleHighlighter fCompatibleHighlighter = null; |
| |
| public void refreshDisplay() { |
| if (_trace) { |
| time0 = System.currentTimeMillis(); |
| } |
| if (fTextViewer != null) |
| fTextViewer.invalidateTextPresentation(); |
| if (_trace) { |
| System.out.println(TRACE_PREFIX + "ReconcilerHighlighter refreshDisplay took " + (System.currentTimeMillis() - time0) + "ms"); //$NON-NLS-1$ //$NON-NLS-2$ |
| System.out.flush(); |
| } |
| } |
| |
| /** |
| * Registers a given line style provider for a particular partition type. |
| * If there is already a line style provider registered for this type, the |
| * new line style provider is registered instead of the old one. |
| * |
| * @param partitionType |
| * the partition type under which to register |
| * @param the |
| * line style provider to register, or <code>null</code> to |
| * remove an existing one |
| */ |
| public void addProvider(String partitionType, LineStyleProvider provider) { |
| getTableOfProviders().put(partitionType, provider); |
| } |
| |
| public void removeProvider(String partitionType) { |
| getTableOfProviders().remove(partitionType); |
| } |
| |
| public LineStyleProvider getProvider(String partitionType) { |
| LineStyleProvider result = (LineStyleProvider) getTableOfProviders().get(partitionType); |
| |
| // The provider was not within the default set of providers. Use the |
| // extended configuration |
| // to look up additional providers |
| if (result == null) { |
| // NOT YET FINALIZED - DO NOT CONSIDER AS API |
| synchronized (getExtendedProviders()) { |
| if (!getExtendedProviders().containsKey(partitionType)) { |
| result = (LineStyleProvider) ExtendedConfigurationBuilder.getInstance().getConfiguration(LINE_STYLE_PROVIDER_EXTENDED_ID, partitionType); |
| getExtendedProviders().put(partitionType, result); |
| |
| if (result != null && fTextViewer != null && fTextViewer.getDocument() instanceof IStructuredDocument) { |
| if (result instanceof AbstractLineStyleProvider) { |
| ((AbstractLineStyleProvider) result).init((IStructuredDocument) fTextViewer.getDocument(), this); |
| } |
| else { |
| Logger.log(Logger.INFO_DEBUG, "CompatibleHighlighter installing compatibility for " + result.getClass()); //$NON-NLS-1$ |
| if (fCompatibleHighlighter == null) { |
| fCompatibleHighlighter = new CompatibleHighlighter(); |
| fCompatibleHighlighter.install(fTextViewer); |
| } |
| result.init((IStructuredDocument) fTextViewer.getDocument(), fCompatibleHighlighter); |
| } |
| } |
| } |
| else { |
| result = (LineStyleProvider) getExtendedProviders().get(partitionType); |
| } |
| } |
| } |
| return result; |
| } |
| |
| private Map getTableOfProviders() { |
| if (fTableOfProviders == null) { |
| fTableOfProviders = new HashMap(); |
| } |
| return fTableOfProviders; |
| } |
| |
| private Map getExtendedProviders() { |
| if (fExtendedProviders == null) { |
| fExtendedProviders = new HashMap(3); |
| } |
| return fExtendedProviders; |
| } |
| |
| public void install(ITextViewer textViewer) { |
| fTextViewer = textViewer; |
| if (fCompatibleHighlighter != null) { |
| fCompatibleHighlighter.uninstall(); |
| fCompatibleHighlighter.install(fTextViewer); |
| } |
| refreshDisplay(); |
| } |
| |
| public void uninstall() { |
| Iterator it = getTableOfProviders().values().iterator(); |
| |
| while (it.hasNext()) { |
| LineStyleProvider provider = (LineStyleProvider) it.next(); |
| if (provider != null) |
| provider.release(); |
| } |
| |
| it = getExtendedProviders().values().iterator(); |
| while (it.hasNext()) { |
| LineStyleProvider provider = (LineStyleProvider) it.next(); |
| if (provider != null) |
| provider.release(); |
| } |
| |
| getTableOfProviders().clear(); |
| getExtendedProviders().clear(); |
| fTableOfProviders = null; |
| if (fCompatibleHighlighter != null) { |
| fCompatibleHighlighter.uninstall(); |
| } |
| fTextViewer = null; |
| } |
| } |