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/*******************************************************************************
* Copyright (c) 2004, 2006 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
*******************************************************************************/
package org.eclipse.cdt.debug.internal.ui.views.disassembly;
import org.eclipse.cdt.core.IAddress;
import org.eclipse.cdt.debug.core.model.ICDebugTarget;
import org.eclipse.cdt.debug.core.model.ICStackFrame;
import org.eclipse.cdt.debug.core.model.IDisassembly;
import org.eclipse.cdt.debug.internal.ui.IInternalCDebugUIConstants;
import org.eclipse.debug.core.DebugException;
import org.eclipse.jface.text.source.Annotation;
/**
* An annotation for the vertical ruler in the disassembly view that shows one
* of two images for the current instruction pointer when debugging (one for
* the top stack frame, one for all others).
*/
public class DisassemblyInstructionPointerAnnotation extends Annotation {
private int fHashCode = 0;
/**
* Construct an instruction pointer annotation for the given stack frame.
*
* @param stackFrame frame to create an instruction pointer annotation for
* @param isTopFrame whether the given frame is the top stack frame in its thread
*/
public DisassemblyInstructionPointerAnnotation( ICStackFrame stackFrame, boolean isTopFrame ) {
super( isTopFrame ? IInternalCDebugUIConstants.ANN_DISASM_INSTR_POINTER_CURRENT : IInternalCDebugUIConstants.ANN_DISASM_INSTR_POINTER_SECONDARY,
false,
isTopFrame ? DisassemblyMessages.getString( "DisassemblyInstructionPointerAnnotation.Current_Pointer_1" ) : DisassemblyMessages.getString( "DisassemblyInstructionPointerAnnotation.Secondary_Pointer_1" ) ); //$NON-NLS-1$ //$NON-NLS-2$
fHashCode = getHashCode( stackFrame );
}
private IDisassembly getDisassembly( ICStackFrame frame ) {
if ( frame != null ) {
ICDebugTarget target = (ICDebugTarget)frame.getDebugTarget();
try {
return target.getDisassembly();
}
catch( DebugException e ) {
}
}
return null;
}
/* (non-Javadoc)
* @see java.lang.Object#hashCode()
*/
public int hashCode() {
return fHashCode;
}
private int getHashCode( ICStackFrame frame ) {
int hashCode = 17;
IDisassembly disassembly = getDisassembly( frame );
hashCode = 37*hashCode + (( disassembly != null ) ? disassembly.hashCode() : 0);
if ( frame != null ) {
IAddress address = frame.getAddress();
hashCode = 37*hashCode + address.hashCode();
}
return hashCode;
}
/* (non-Javadoc)
* @see java.lang.Object#equals(java.lang.Object)
*/
public boolean equals( Object obj ) {
return ( obj != null ? obj.hashCode() == hashCode() : false );
}
}
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