org.eclipse.compare.internal.BinaryCompareViewer Maven / Gradle / Ivy
/*******************************************************************************
* Copyright (c) 2000, 2016 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.compare.internal;
import java.io.IOException;
import java.io.InputStream;
import java.util.ResourceBundle;
import org.eclipse.compare.CompareConfiguration;
import org.eclipse.compare.CompareEditorInput;
import org.eclipse.compare.CompareUI;
import org.eclipse.compare.IStreamContentAccessor;
import org.eclipse.compare.ITypedElement;
import org.eclipse.compare.structuremergeviewer.ICompareInput;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.RowLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Label;
import org.eclipse.ui.PlatformUI;
import com.ibm.icu.text.MessageFormat;
/**
* A simple compare viewer for binary files.
* Shows the position of the first non-matching byte.
*/
public class BinaryCompareViewer extends AbstractViewer {
private static final String BUNDLE_NAME = "org.eclipse.compare.internal.BinaryCompareViewerResources"; //$NON-NLS-1$
private static final int EOF = -1;
private ICompareInput fInput;
private ResourceBundle fBundle;
private Composite fComposite;
private Label fMessage;
private CompareConfiguration compareConfiguration;
public BinaryCompareViewer(Composite parent, final CompareConfiguration cc) {
PlatformUI.getWorkbench().getHelpSystem().setHelp(parent, ICompareContextIds.BINARY_COMPARE_VIEW);
fBundle= ResourceBundle.getBundle(BUNDLE_NAME);
fComposite= new Composite(parent, SWT.NONE);
RowLayout rowLayout = new RowLayout();
rowLayout.type = SWT.VERTICAL;
fComposite.setLayout(rowLayout);
fMessage= new Label(fComposite, SWT.WRAP);
fComposite.setData(CompareUI.COMPARE_VIEWER_TITLE, Utilities.getString(fBundle, "title")); //$NON-NLS-1$
compareConfiguration = cc != null ? cc : new CompareConfiguration();
if (compareConfiguration.getContainer() instanceof CompareEditorInput) {
Label compareAsTextLabel = new Label(fComposite, SWT.WRAP);
compareAsTextLabel.setText(Utilities.getString(fBundle, "compareAsText")); //$NON-NLS-1$
}
}
@Override
public Control getControl() {
return fComposite;
}
@Override
public void setInput(Object input) {
if (fComposite != null && input instanceof ICompareInput) {
fInput= (ICompareInput) input;
InputStream left= null;
InputStream right= null;
String message= null;
try {
left= getStream(fInput.getLeft());
right= getStream(fInput.getRight());
if (left != null && right != null) {
int pos= 0;
while (true) {
int l= left.read();
int r= right.read();
if (l != r) {
String format= Utilities.getString(fBundle, "diffMessageFormat"); //$NON-NLS-1$
message= MessageFormat.format(format, Integer.toString(pos) );
break;
}
if (l == EOF)
break;
pos++;
}
} else if (left == null && right == null) {
message= Utilities.getString(fBundle, "deleteConflictMessage"); //$NON-NLS-1$
} else if (left == null) {
message= Utilities.getString(fBundle, compareConfiguration.isMirrored() ?
"addedMessage" : "deletedMessage"); //$NON-NLS-1$ //$NON-NLS-2$
} else if (right == null) {
message= Utilities.getString(fBundle, compareConfiguration.isMirrored() ?
"deletedMessage" : "addedMessage"); //$NON-NLS-1$ //$NON-NLS-2$
}
} catch (CoreException | IOException ex) {
message = Utilities.getString(fBundle, "errorMessage"); //$NON-NLS-1$
CompareUIPlugin.log(ex);
} finally {
Utilities.close(left);
Utilities.close(right);
}
if (message != null)
fMessage.setText(message);
fComposite.layout();
}
}
@Override
public Object getInput() {
return fInput;
}
private InputStream getStream(ITypedElement input) throws CoreException {
if (input instanceof IStreamContentAccessor)
return ((IStreamContentAccessor)input).getContents();
return null;
}
}