/*******************************************************************************
* Copyright (c) 2004, 2012 QNX Software 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:
* QNX Software Systems - initial API and implementation
* Markus Schorn (Wind River Systems)
*******************************************************************************/
package org.eclipse.cdt.core.browser;
import org.eclipse.cdt.core.CCorePlugin;
import org.eclipse.cdt.core.model.CModelException;
import org.eclipse.cdt.core.model.CoreModel;
import org.eclipse.cdt.core.model.CoreModelUtil;
import org.eclipse.cdt.core.model.ICElement;
import org.eclipse.cdt.core.model.ICProject;
import org.eclipse.cdt.core.model.ITranslationUnit;
import org.eclipse.cdt.core.model.IWorkingCopy;
import org.eclipse.cdt.utils.PathUtil;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.runtime.IPath;
/**
* @noextend This class is not intended to be subclassed by clients.
* @noinstantiate This class is not intended to be instantiated by clients.
*/
public class TypeReference implements ITypeReference {
private IPath fPath;
private IProject fProject;
private IResource fResource;
private IWorkingCopy fWorkingCopy;
private int fOffset;
private int fLength;
public boolean offsetIsLineNumber = false;
public TypeReference(IPath path, IProject project, int offset, int length) {
fPath = path;
fProject = project;
fWorkingCopy = null;
fResource = null;
fOffset = offset;
fLength = length;
}
public TypeReference(IResource resource, IProject project, int offset, int length) {
fPath = null;
fProject = project;
fWorkingCopy = null;
fResource = resource;
fOffset = offset;
fLength = length;
}
public TypeReference(IWorkingCopy workingCopy, IProject project, int offset, int length) {
fPath = null;
fProject = project;
fWorkingCopy = workingCopy;
fResource = null;
fOffset = offset;
fLength = length;
}
public TypeReference(IPath path, IProject project) {
this(path, project, 0, 0);
}
public TypeReference(IResource resource, IProject project) {
this(resource, project, 0, 0);
}
public TypeReference(IWorkingCopy workingCopy, IProject project) {
this(workingCopy, project, 0, 0);
}
@Override
public IPath getPath() {
if (fWorkingCopy != null) {
return fWorkingCopy.getPath();
} else if (fResource != null) {
return fResource.getFullPath();
} else {
return fPath;
}
}
@Override
public IPath getLocation() {
if (fWorkingCopy != null) {
IResource resource = fWorkingCopy.getUnderlyingResource();
if (resource != null) {
return resource.getLocation();
}
return null;
} else if (fResource != null) {
return fResource.getLocation();
} else if (fPath != null) {
return fPath;
} else if (fProject != null) {
return fProject.getLocation();
} else {
return null;
}
}
@Override
public IResource getResource() {
return fResource;
}
@Override
public IWorkingCopy getWorkingCopy() {
return fWorkingCopy;
}
@Override
public IProject getProject() {
if (fProject != null) {
return fProject;
}
if (fWorkingCopy != null) {
ICProject cProject = fWorkingCopy.getCProject();
if (cProject != null) {
return cProject.getProject();
}
return null;
} else if (fResource != null) {
return fResource.getProject();
} else {
return null;
}
}
@Override
public ITranslationUnit getTranslationUnit() {
ITranslationUnit unit = null;
if (fWorkingCopy != null) {
unit = fWorkingCopy.getTranslationUnit();
} else if (fResource != null) {
ICElement elem = CoreModel.getDefault().create(fResource);
if (elem instanceof ITranslationUnit)
unit = (ITranslationUnit) elem;
} else {
IPath path = getLocation();
ICElement elem = CoreModel.getDefault().create(path);
if (elem instanceof ITranslationUnit)
unit = (ITranslationUnit) elem;
else {
try {
unit= CoreModelUtil.findTranslationUnitForLocation(path, findCProject(getProject()));
} catch (CModelException e) {
CCorePlugin.log(e);
}
}
}
return unit;
}
private ICProject findCProject(IProject project) {
if (project == null) {
return null;
}
try {
ICProject[] cProjects = CoreModel.getDefault().getCModel().getCProjects();
if (cProjects != null) {
for (int i = 0; i < cProjects.length; ++i) {
ICProject cProject = cProjects[i];
if (project.equals(cProjects[i].getProject()))
return cProject;
}
}
} catch (CModelException e) {
}
return null;
}
@Override
public ICElement[] getCElements() {
ITranslationUnit unit = getTranslationUnit();
if (unit != null) {
try {
if( offsetIsLineNumber )
{
ICElement [] result = new ICElement[1];
result[0] = unit.getElementAtLine(fOffset);
return result;
}
return unit.getElementsAtOffset(fOffset);
} catch (CModelException e) {
}
}
return null;
}
@Override
public int getOffset() {
return fOffset;
}
@Override
public int getLength() {
return fLength;
}
@Override
public IPath getRelativeIncludePath(IProject project) {
IPath path = getLocation();
if (path != null) {
IPath relativePath = PathUtil.makeRelativePathToProjectIncludes(path, project);
if (relativePath != null)
return relativePath;
}
return path;
}
@Override
public IPath getRelativePath(IPath relativeToPath) {
IPath path = getPath();
if (path != null) {
IPath relativePath = PathUtil.makeRelativePath(path, relativeToPath);
if (relativePath != null)
return relativePath;
}
return path;
}
@Override
public String toString() {
IPath path = getLocation();
if (path != null) {
if (fLength == 0 && fOffset == 0) {
return path.toString();
}
return path.toString() + ":" + fOffset + "-" + (fOffset + fLength); //$NON-NLS-1$//$NON-NLS-2$
}
return ""; //$NON-NLS-1$
}
@Override
public int hashCode() {
return toString().hashCode();
}
@Override
public boolean equals(Object obj) {
if (obj == this) {
return true;
}
if (!(obj instanceof ITypeReference)) {
return false;
}
ITypeReference ref = (ITypeReference)obj;
return toString().equals(ref.toString());
}
@Override
public boolean isLineNumber() {
return offsetIsLineNumber;
}
}