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/*******************************************************************************
* Copyright (c) 2004, 2005 IBM Corporation and others.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* 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 little endian.
* @since 3.0
*/
public class LittleEndianAction implements IObjectActionDelegate {
AbstractIntegerRendering fRendering;
@Override
public void setActivePart(IAction action, IWorkbenchPart targetPart) {
}
@Override
public void run(IAction action) {
if (fRendering == null) {
return;
}
if (fRendering.getDisplayEndianess() != RenderingsUtil.LITTLE_ENDIAN){
fRendering.setDisplayEndianess(RenderingsUtil.LITTLE_ENDIAN);
fRendering.refresh();
}
}
@Override
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.LITTLE_ENDIAN) {
action.setChecked(true);
} else {
action.setChecked(false);
}
}
}
}
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