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/*******************************************************************************
* Copyright (c) 2004, 2005 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.debug.internal.ui.views.memory.renderings;
import org.eclipse.debug.core.model.MemoryByte;
import org.eclipse.jface.action.IAction;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.ui.IObjectActionDelegate;
import org.eclipse.ui.IWorkbenchPart;
/**
* Show integers in Big Endian
*/
public class BigEndianAction implements IObjectActionDelegate {
AbstractIntegerRendering fRendering;
/* (non-Javadoc)
* @see org.eclipse.ui.IObjectActionDelegate#setActivePart(org.eclipse.jface.action.IAction, org.eclipse.ui.IWorkbenchPart)
*/
public void setActivePart(IAction action, IWorkbenchPart targetPart) {
}
/* (non-Javadoc)
* @see org.eclipse.ui.IActionDelegate#run(org.eclipse.jface.action.IAction)
*/
public void run(IAction action) {
if (fRendering == null)
return;
if (fRendering.getDisplayEndianess() != RenderingsUtil.BIG_ENDIAN){
fRendering.setDisplayEndianess(RenderingsUtil.BIG_ENDIAN);
fRendering.refresh();
}
}
/* (non-Javadoc)
* @see org.eclipse.ui.IActionDelegate#selectionChanged(org.eclipse.jface.action.IAction, org.eclipse.jface.viewers.ISelection)
*/
public void selectionChanged(IAction action, ISelection selection) {
if (selection == null)
return;
if (selection instanceof IStructuredSelection)
{
Object obj = ((IStructuredSelection)selection).getFirstElement();
if (obj == null)
return;
if (obj instanceof AbstractIntegerRendering)
{
fRendering = (AbstractIntegerRendering)obj;
}
int endianess = RenderingsUtil.ENDIANESS_UNKNOWN;
if (fRendering.getDisplayEndianess() == RenderingsUtil.ENDIANESS_UNKNOWN)
{
MemoryByte[] selectedBytes = fRendering.getSelectedAsBytes();
for (int i=0; i<selectedBytes.length; i++)
{
if (!selectedBytes[i].isEndianessKnown())
{
endianess = RenderingsUtil.ENDIANESS_UNKNOWN;
break;
}
if (i==0)
{
endianess = selectedBytes[i].isBigEndian()?RenderingsUtil.BIG_ENDIAN:RenderingsUtil.LITTLE_ENDIAN;
}
else
{
int byteEndianess = selectedBytes[i].isBigEndian()?RenderingsUtil.BIG_ENDIAN:RenderingsUtil.LITTLE_ENDIAN;
if (endianess != byteEndianess)
{
endianess = RenderingsUtil.ENDIANESS_UNKNOWN;
break;
}
}
}
}
else
endianess = fRendering.getDisplayEndianess();
if (endianess == RenderingsUtil.BIG_ENDIAN)
action.setChecked(true);
else
action.setChecked(false);
}
}
}
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