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/*******************************************************************************
* Copyright (c) 2004, 2015 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 java.math.BigInteger;
import org.eclipse.core.runtime.PlatformObject;
import org.eclipse.debug.core.DebugException;
import org.eclipse.debug.core.model.IMemoryBlock;
import org.eclipse.debug.core.model.IMemoryBlockExtension;
import org.eclipse.debug.internal.ui.memory.provisional.AbstractAsyncTableRendering;
import org.eclipse.debug.ui.memory.AbstractTableRendering;
import org.eclipse.debug.ui.memory.IMemoryRendering;
/**
* This is an internal class for storing information about the content
* in the table viewer.
*/
public class TableRenderingContentInput extends PlatformObject {
private IMemoryRendering fRendering;
private int fPreBuffer; // number of lines before the top visible line
private int fPostBuffer; // number of lines after thes last visible line
private BigInteger fLoadAddress; // Top address to load at the table
private int fNumLines; // number of visible lines
private boolean fUpdateDelta; // should the content provider calculate delta info
private BigInteger fMemoryBlockBaseAddress; // base address of the memory block when this input is set
private BigInteger fStartAddress;
private BigInteger fEndAddress;
public TableRenderingContentInput(IMemoryRendering rendering, int preBuffer, int postBuffer, BigInteger loadAddress, int numOfLines, boolean updateDelta, BigInteger contentBaseAddress)
{
fRendering = rendering;
fPreBuffer = preBuffer;
fPostBuffer = postBuffer;
fLoadAddress = loadAddress;
fNumLines = numOfLines;
fUpdateDelta = updateDelta;
if (contentBaseAddress == null)
{
try {
updateContentBaseAddress();
} catch (DebugException e) {
}
}
else
{
fMemoryBlockBaseAddress = contentBaseAddress;
}
}
public int getPostBuffer() {
return fPostBuffer;
}
public int getPreBuffer() {
return fPreBuffer;
}
public BigInteger getLoadAddress() {
return fLoadAddress;
}
public IMemoryBlock getMemoryBlock()
{
return fRendering.getMemoryBlock();
}
public void setPostBuffer(int postBuffer) {
fPostBuffer = postBuffer;
}
public void setPreBuffer(int preBuffer) {
fPreBuffer = preBuffer;
}
public boolean isUpdateDelta() {
return fUpdateDelta;
}
public void setUpdateDelta(boolean updateDelta) {
fUpdateDelta = updateDelta;
}
public void setLoadAddress(BigInteger address)
{
fLoadAddress = address;
}
public BigInteger getContentBaseAddress() {
if (fMemoryBlockBaseAddress == null)
{
try {
updateContentBaseAddress();
} catch (DebugException e) {
fMemoryBlockBaseAddress = new BigInteger("0"); //$NON-NLS-1$
}
}
return fMemoryBlockBaseAddress;
}
public void updateContentBaseAddress() throws DebugException {
IMemoryBlock memoryBlock = fRendering.getMemoryBlock();
if (memoryBlock instanceof IMemoryBlockExtension) {
fMemoryBlockBaseAddress = ((IMemoryBlockExtension)memoryBlock).getBigBaseAddress();
} else {
fMemoryBlockBaseAddress = BigInteger.valueOf(memoryBlock.getStartAddress());
}
}
/**
* @return start address of the memory block
*/
public BigInteger getStartAddress()
{
if (fStartAddress == null)
{
try {
IMemoryBlock memoryBlock = fRendering.getMemoryBlock();
if(memoryBlock instanceof IMemoryBlockExtension)
{
BigInteger startAddress = ((IMemoryBlockExtension)memoryBlock).getMemoryBlockStartAddress();
if (startAddress != null) {
fStartAddress = startAddress;
}
}
} catch (DebugException e) {
// default to 0 if we have trouble getting the start address
fStartAddress = BigInteger.valueOf(0);
}
if (fStartAddress == null) {
fStartAddress = BigInteger.valueOf(0);
}
}
return fStartAddress;
}
/**
* @return end address of the memory block
*/
public BigInteger getEndAddress()
{
if (fEndAddress == null)
{
IMemoryBlock memoryBlock = fRendering.getMemoryBlock();
if(memoryBlock instanceof IMemoryBlockExtension)
{
BigInteger endAddress;
try {
endAddress = ((IMemoryBlockExtension)memoryBlock).getMemoryBlockEndAddress();
if (endAddress != null) {
fEndAddress = endAddress;
}
} catch (DebugException e) {
fEndAddress = null;
}
if (fEndAddress == null)
{
int addressSize;
try {
addressSize = ((IMemoryBlockExtension)memoryBlock).getAddressSize();
} catch (DebugException e) {
addressSize = 4;
}
endAddress = BigInteger.valueOf(2);
endAddress = endAddress.pow(addressSize*8);
endAddress = endAddress.subtract(BigInteger.valueOf(1));
fEndAddress = endAddress;
}
}
if (fEndAddress == null) {
fEndAddress = BigInteger.valueOf(Integer.MAX_VALUE);
}
}
return fEndAddress;
}
public int getNumLines()
{
return fNumLines;
}
public void setNumLines(int numLines)
{
fNumLines = numLines;
}
@SuppressWarnings("unchecked")
@Override
public <T> T getAdapter(Class<T> adapter) {
if (adapter == AbstractTableRendering.class)
{
if (fRendering instanceof AbstractTableRendering) {
return (T) fRendering;
}
}
if (adapter == AbstractAsyncTableRendering.class)
{
if (fRendering instanceof AbstractAsyncTableRendering) {
return (T) fRendering;
}
}
return super.getAdapter(adapter);
}
}
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