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/*******************************************************************************
* Copyright (c) 2007, 2008 Wind River Systems 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:
* Wind River Systems - initial API and implementation
*******************************************************************************/
package org.eclipse.cdt.dsf.debug.internal.ui.disassembly.presentation;
import org.eclipse.cdt.core.model.CModelException;
import org.eclipse.cdt.core.model.CoreModel;
import org.eclipse.cdt.core.model.IAsmLanguage;
import org.eclipse.cdt.core.model.ICElement;
import org.eclipse.cdt.core.model.ICModel;
import org.eclipse.cdt.core.model.ICProject;
import org.eclipse.cdt.core.model.ILanguage;
import org.eclipse.cdt.core.model.ITranslationUnit;
import org.eclipse.cdt.internal.ui.editor.CDocumentProvider;
import org.eclipse.cdt.internal.ui.editor.ITranslationUnitEditorInput;
import org.eclipse.cdt.internal.ui.text.CCommentScanner;
import org.eclipse.cdt.internal.ui.text.CTextTools;
import org.eclipse.cdt.internal.ui.text.ICColorConstants;
import org.eclipse.cdt.internal.ui.text.IColorManager;
import org.eclipse.cdt.internal.ui.text.SimpleCSourceViewerConfiguration;
import org.eclipse.cdt.internal.ui.text.TokenStore;
import org.eclipse.cdt.internal.ui.util.EditorUtility;
import org.eclipse.cdt.ui.CUIPlugin;
import org.eclipse.cdt.ui.text.ICPartitions;
import org.eclipse.cdt.ui.text.ITokenStore;
import org.eclipse.cdt.ui.text.ITokenStoreFactory;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IFileState;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.IStorage;
import org.eclipse.jface.preference.IPreferenceStore;
import org.eclipse.jface.text.IDocument;
import org.eclipse.jface.text.IRegion;
import org.eclipse.jface.text.ITextViewer;
import org.eclipse.jface.text.Region;
import org.eclipse.jface.text.TextPresentation;
import org.eclipse.jface.text.presentation.PresentationReconciler;
import org.eclipse.jface.text.rules.ITokenScanner;
import org.eclipse.jface.text.rules.RuleBasedScanner;
import org.eclipse.jface.util.IPropertyChangeListener;
import org.eclipse.jface.util.PropertyChangeEvent;
import org.eclipse.swt.widgets.Display;
import org.eclipse.ui.IEditorInput;
import org.eclipse.ui.texteditor.IDocumentProvider;
import org.eclipse.ui.texteditor.ITextEditor;
/**
* A presentation creator based on CDT syntax highlighting.
*/
@SuppressWarnings("restriction")
public class CSourcePresentationCreator extends PresentationReconciler implements ISourcePresentationCreator, IPropertyChangeListener {
/**
*
*/
private final static class CustomCSourceViewerConfiguration extends SimpleCSourceViewerConfiguration {
/**
* Comment for <code>fLanguage</code>
*/
private final ILanguage fLanguage;
/**
* @param colorManager
* @param preferenceStore
* @param language
*/
private CustomCSourceViewerConfiguration(
IColorManager colorManager, IPreferenceStore preferenceStore,
ILanguage language) {
super(colorManager, preferenceStore, null, ICPartitions.C_PARTITIONING, false);
fLanguage = language;
}
public void dispose() {
}
/*
* @see org.eclipse.cdt.internal.ui.text.CSourceViewerConfiguration#getLanguage()
*/
@Override
protected ILanguage getLanguage() {
return fLanguage;
}
/**
* @param contentType
* @return
*/
public ITokenScanner getScannerForContentType(String contentType) {
if (IDocument.DEFAULT_CONTENT_TYPE.equals(contentType)) {
return getLanguage() != null ? getCodeScanner(getLanguage()) : null;
} else if (ICPartitions.C_CHARACTER.equals(contentType)) {
return getStringScanner();
} else if (ICPartitions.C_STRING.equals(contentType)) {
return getStringScanner();
} else if (ICPartitions.C_SINGLE_LINE_COMMENT.equals(contentType)) {
return getSinglelineCommentScanner();
} else if (ICPartitions.C_SINGLE_LINE_DOC_COMMENT.equals(contentType)) {
return getSinglelineDocCommentScanner(getProject());
} else if (ICPartitions.C_MULTI_LINE_COMMENT.equals(contentType)) {
return getMultilineCommentScanner();
} else if (ICPartitions.C_MULTI_LINE_DOC_COMMENT.equals(contentType)) {
return getMultilineDocCommentScanner(getProject());
} else if (ICPartitions.C_PREPROCESSOR.equals(contentType)) {
return getPreprocessorScanner(getLanguage());
}
return null;
}
private ITokenScanner getMultilineCommentScanner() {
return new CCommentScanner(getTokenStoreFactory(), ICColorConstants.C_SINGLE_LINE_COMMENT);
}
private ITokenScanner getSinglelineCommentScanner() {
return new CCommentScanner(getTokenStoreFactory(), ICColorConstants.C_MULTI_LINE_COMMENT);
}
/**
* Returns the ICProject associated with this CSourceViewerConfiguration, or null if
* no ICProject could be determined
* @return
*/
private ICProject internalGetCProject() {
ITextEditor editor= getEditor();
if (editor == null)
return null;
ICElement element= null;
IEditorInput input= editor.getEditorInput();
IDocumentProvider provider= editor.getDocumentProvider();
if (provider instanceof CDocumentProvider) {
CDocumentProvider cudp= (CDocumentProvider) provider;
element= cudp.getWorkingCopy(input);
}
if (element == null)
return null;
return element.getCProject();
}
/**
* @return the IProject associated with this CSourceViewerConfiguration, or null if
* no IProject could be determined
*/
private IProject getProject() {
ICProject cproject= internalGetCProject();
return cproject!=null ? cproject.getProject() :null;
}
private ITokenStoreFactory getTokenStoreFactory() {
return new ITokenStoreFactory() {
public ITokenStore createTokenStore(String[] propertyColorNames) {
return new TokenStore(getColorManager(), fPreferenceStore, propertyColorNames);
}
};
}
/*
* @see org.eclipse.cdt.internal.ui.text.CSourceViewerConfiguration#getCodeScanner(org.eclipse.cdt.core.model.ILanguage)
*/
@Override
protected RuleBasedScanner getCodeScanner(ILanguage language) {
if (language instanceof IAsmLanguage) {
return CUIPlugin.getDefault().getAsmTextTools().getCodeScanner();
}
return super.getCodeScanner(language);
}
/*
* @see org.eclipse.cdt.internal.ui.text.CSourceViewerConfiguration#getPreprocessorScanner(org.eclipse.cdt.core.model.ILanguage)
*/
@Override
protected RuleBasedScanner getPreprocessorScanner(ILanguage language) {
if (language instanceof IAsmLanguage) {
return CUIPlugin.getDefault().getAsmTextTools().getPreprocessorScanner();
}
return super.getPreprocessorScanner(language);
}
}
private ITextViewer fViewer;
private ISourceTagProvider fSourceTagProvider;
private SourceTagDamagerRepairer fDamagerRepairer;
private ISourceTagListener fSourceTagListener;
private TextPresentation fPresentation;
private CustomCSourceViewerConfiguration fSourceViewerConfiguration;
private IPreferenceStore fPreferenceStore;
/**
* @param language
* @param storage
* @param textViewer
*/
public CSourcePresentationCreator(ILanguage language, IStorage storage, ITextViewer textViewer) {
if (language != null) {
fViewer= textViewer;
fPreferenceStore= CUIPlugin.getDefault().getCombinedPreferenceStore();
CTextTools textTools = CUIPlugin.getDefault().getTextTools();
fSourceViewerConfiguration= new CustomCSourceViewerConfiguration(textTools.getColorManager(), fPreferenceStore, language);
setDocumentPartitioning(fSourceViewerConfiguration.getConfiguredDocumentPartitioning(null));
initializeDamagerRepairer(storage, textTools.getColorManager(), fPreferenceStore);
fPreferenceStore.addPropertyChangeListener(this);
}
}
private void initializeDamagerRepairer(IStorage storage, IColorManager colorManager, IPreferenceStore store) {
String[] contentTypes= fSourceViewerConfiguration.getConfiguredContentTypes(null);
for (int i = 0; i < contentTypes.length; ++i) {
String contentType = contentTypes[i];
ITokenScanner scanner;
scanner = fSourceViewerConfiguration.getScannerForContentType(contentType);
if (scanner != null) {
if (fDamagerRepairer == null) {
fSourceTagProvider = createSourceTagProvider(storage);
fDamagerRepairer= new SourceTagDamagerRepairer(scanner, fSourceTagProvider, colorManager, store);
if (fSourceTagProvider != null) {
if (fSourceTagListener == null) {
fSourceTagListener= new ISourceTagListener() {
public void sourceTagsChanged(ISourceTagProvider provider) {
handleSourceTagsChanged();
}};
}
fSourceTagProvider.addSourceTagListener(fSourceTagListener);
}
}
fDamagerRepairer.setScanner(contentType, scanner);
setDamager(fDamagerRepairer, contentType);
setRepairer(fDamagerRepairer, contentType);
}
}
}
/*
* @see org.eclipse.cdt.dsf.debug.internal.ui.disassembly.presentation.ISourcePresentationCreator#dispose()
*/
public void dispose() {
fViewer= null;
fPresentation= null;
if (fPreferenceStore != null) {
fPreferenceStore.removePropertyChangeListener(this);
fPreferenceStore= null;
}
if (fSourceViewerConfiguration != null) {
fSourceViewerConfiguration.dispose();
fSourceViewerConfiguration= null;
}
if (fSourceTagProvider != null) {
if (fSourceTagListener != null) {
fSourceTagProvider.removeSourceTagListener(fSourceTagListener);
fSourceTagListener= null;
}
fSourceTagProvider= null;
}
}
/*
* @see org.eclipse.cdt.dsf.debug.internal.ui.disassembly.presentation.ISourcePresentationCreator#getPresentation(org.eclipse.jface.text.IRegion, org.eclipse.jface.text.IDocument)
*/
public TextPresentation getPresentation(IRegion region, IDocument document) {
assert fViewer != null;
if (fViewer == null) {
return null;
}
if (fPresentation == null) {
setDocumentToDamagers(document);
setDocumentToRepairers(document);
int docLength= document.getLength();
if (docLength <= 128*1024) {
IRegion all= new Region(0, docLength);
fPresentation= createPresentation(all, document);
} else {
return createPresentation(region, document);
}
}
fPresentation.setResultWindow(region);
return fPresentation;
}
protected void handleSourceTagsChanged() {
invalidateTextPresentation();
}
private void invalidateTextPresentation() {
if (fPresentation != null) {
fPresentation= null;
if (fViewer != null) {
Display display= fViewer.getTextWidget().getDisplay();
if (display.getThread() != Thread.currentThread()) {
display.asyncExec(new Runnable() {
public void run() {
if (fViewer != null) {
fViewer.invalidateTextPresentation();
}
}});
} else {
fViewer.invalidateTextPresentation();
}
}
}
}
private ISourceTagProvider createSourceTagProvider(IStorage storage) {
ITranslationUnit tUnit= null;
if (storage instanceof IFile) {
tUnit= (ITranslationUnit) CoreModel.getDefault().create((IFile)storage);
} else if (storage instanceof IFileState) {
ICModel cModel= CoreModel.getDefault().getCModel();
ICProject[] cProjects;
try {
cProjects = cModel.getCProjects();
if (cProjects.length > 0) {
tUnit= CoreModel.getDefault().createTranslationUnitFrom(cProjects[0], storage.getFullPath());
}
} catch (CModelException e) {
}
} else {
IEditorInput input= EditorUtility.getEditorInputForLocation(storage.getFullPath(), null);
if (input instanceof ITranslationUnitEditorInput) {
tUnit= ((ITranslationUnitEditorInput)input).getTranslationUnit();
}
}
if (tUnit != null) {
return new CSourceTagProvider(tUnit);
}
return null;
}
/*
* @see org.eclipse.jface.util.IPropertyChangeListener#propertyChange(org.eclipse.jface.util.PropertyChangeEvent)
*/
public void propertyChange(PropertyChangeEvent event) {
if (fSourceViewerConfiguration.affectsBehavior(event)) {
fSourceViewerConfiguration.handlePropertyChangeEvent(event);
invalidateTextPresentation();
} else if (fDamagerRepairer.affectsBahvior(event)) {
fDamagerRepairer.handlePropertyChangeEvent(event);
invalidateTextPresentation();
}
}
}
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