memory/org.eclipse.cdt.debug.ui.memory.transport/src/org/eclipse/cdt/debug/ui/memory/transport/SRecordExporter.java - cdt/org.eclipse.cdt - Git at Google

 /*******************************************************************************
  * Copyright (c) 2006, 2016 Wind River Systems, Inc. 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:
  *     Ted R Williams (Wind River Systems, Inc.) - initial implementation
  *******************************************************************************/

 package org.eclipse.cdt.debug.ui.memory.transport;

 import java.io.File;
 import java.io.FileWriter;
 import java.io.IOException;
 import java.math.BigInteger;
 import org.eclipse.cdt.debug.ui.memory.transport.model.IMemoryExporter;
 import org.eclipse.core.runtime.IProgressMonitor;
 import org.eclipse.core.runtime.IStatus;
 import org.eclipse.core.runtime.Status;
 import org.eclipse.core.runtime.jobs.Job;
 import org.eclipse.debug.core.DebugException;
 import org.eclipse.debug.core.model.IMemoryBlock;
 import org.eclipse.debug.core.model.IMemoryBlockExtension;
 import org.eclipse.debug.core.model.MemoryByte;
 import org.eclipse.jface.dialogs.IDialogSettings;
 import org.eclipse.swt.SWT;
 import org.eclipse.swt.events.KeyEvent;
 import org.eclipse.swt.events.KeyListener;
 import org.eclipse.swt.events.SelectionEvent;
 import org.eclipse.swt.events.SelectionListener;
 import org.eclipse.swt.layout.FormAttachment;
 import org.eclipse.swt.layout.FormData;
 import org.eclipse.swt.layout.FormLayout;
 import org.eclipse.swt.widgets.Button;
 import org.eclipse.swt.widgets.Composite;
 import org.eclipse.swt.widgets.Control;
 import org.eclipse.swt.widgets.Display;
 import org.eclipse.swt.widgets.FileDialog;
 import org.eclipse.swt.widgets.Label;
 import org.eclipse.swt.widgets.Text;

 public class SRecordExporter implements IMemoryExporter
 {
 	File fOutputFile;
 	BigInteger fStartAddress;
 	BigInteger fEndAddress;

 	private Text fStartText;
 	private Text fEndText;
 	private Text fLengthText;
 	private Text fFileText;

 	private IMemoryBlock fMemoryBlock;

 	private ExportMemoryDialog fParentDialog;

 	private IDialogSettings fProperties;

 	public Control createControl(final Composite parent, IMemoryBlock memBlock, IDialogSettings properties, ExportMemoryDialog parentDialog)
 	{
 		fMemoryBlock = memBlock;
 		fParentDialog = parentDialog;
 		fProperties = properties;

 		Composite composite = new Composite(parent, SWT.NONE)
 		{
 			public void dispose()
 			{
 				fProperties.put(TRANSFER_FILE, fFileText.getText().trim());
 				fProperties.put(TRANSFER_START, fStartText.getText().trim());
 				fProperties.put(TRANSFER_END, fEndText.getText().trim());

 				try
 				{
 					fStartAddress = getStartAddress();
 					fEndAddress = getEndAddress();
 					fOutputFile = getFile();
 				}
 				catch(Exception e) {}

 				super.dispose();
 			}
 		};
 		FormLayout formLayout = new FormLayout();
 		formLayout.spacing = 5;
 		formLayout.marginWidth = formLayout.marginHeight = 9;
 		composite.setLayout(formLayout);

 		// start address

 		Label startLabel = new Label(composite, SWT.NONE);
 		startLabel.setText(Messages.getString("SRecordExporter.StartAddress"));  //$NON-NLS-1$
 		FormData data = new FormData();
 		startLabel.setLayoutData(data);

 		fStartText = new Text(composite, SWT.BORDER);
 		data = new FormData();
 		data.left = new FormAttachment(startLabel);
 		data.width = 120;
 		fStartText.setLayoutData(data);

 		// end address

 		Label endLabel = new Label(composite, SWT.NONE);
 		endLabel.setText(Messages.getString("SRecordExporter.EndAddress"));  //$NON-NLS-1$
 		data = new FormData();
 		data.top = new FormAttachment(fStartText, 0, SWT.CENTER);
 		data.left = new FormAttachment(fStartText);
 		endLabel.setLayoutData(data);

 		fEndText = new Text(composite, SWT.BORDER);
 		data = new FormData();
 		data.top = new FormAttachment(fStartText, 0, SWT.CENTER);
 		data.left = new FormAttachment(endLabel);
 		data.width = 120;
 		fEndText.setLayoutData(data);

 		// length

 		Label lengthLabel = new Label(composite, SWT.NONE);
 		lengthLabel.setText(Messages.getString("SRecordExporter.Length"));  //$NON-NLS-1$
 		data = new FormData();
 		data.top = new FormAttachment(fStartText, 0, SWT.CENTER);
 		data.left = new FormAttachment(fEndText);
 		lengthLabel.setLayoutData(data);

 		fLengthText = new Text(composite, SWT.BORDER);
 		data = new FormData();
 		data.top = new FormAttachment(fStartText, 0, SWT.CENTER);
 		data.left = new FormAttachment(lengthLabel);
 		data.width = 120;
 		fLengthText.setLayoutData(data);

 		// file

 		Label fileLabel = new Label(composite, SWT.NONE);
 		fFileText = new Text(composite, SWT.BORDER);
 		Button fileButton = new Button(composite, SWT.PUSH);

 		fileLabel.setText(Messages.getString("Exporter.FileName"));  //$NON-NLS-1$
 		data = new FormData();
 		data.top = new FormAttachment(fileButton, 0, SWT.CENTER);
 		fileLabel.setLayoutData(data);

 		data = new FormData();
 		data.top = new FormAttachment(fileButton, 0, SWT.CENTER);
 		data.left = new FormAttachment(fileLabel);
 		data.width = 360;
 		fFileText.setLayoutData(data);

 		fileButton.setText(Messages.getString("Exporter.Browse")); //$NON-NLS-1$
 		data = new FormData();
 		data.top = new FormAttachment(fLengthText);
 		data.left = new FormAttachment(fFileText);
 		fileButton.setLayoutData(data);

 		// Restriction notice about 32-bit support

 		Label spacingLabel = new Label(composite, SWT.NONE);

 		spacingLabel.setText("");  //$NON-NLS-1$
 		data = new FormData();
 		data.left = new FormAttachment(0);
 		data.top = new FormAttachment(fileLabel);
 		spacingLabel.setLayoutData(data);

 		Label restrictionLabel = new Label(composite, SWT.NONE);

 		restrictionLabel.setText(Messages.getString("SRecordExporter.32BitLimitationMessage"));  //$NON-NLS-1$
 		data = new FormData();
 		data.left = new FormAttachment(0);
 		data.top = new FormAttachment(spacingLabel);
 		restrictionLabel.setLayoutData(data);

 		String textValue = fProperties.get(TRANSFER_FILE);
 		fFileText.setText(textValue != null ? textValue : ""); //$NON-NLS-1$

 		textValue = fProperties.get(TRANSFER_START);
 		fStartText.setText(textValue != null ? textValue : "0x0"); //$NON-NLS-1$

 		try
 		{
 			getStartAddress();
 		}
 		catch(Exception e)
 		{
 			fStartText.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_RED));
 		}

 		textValue = fProperties.get(TRANSFER_END);
 		fEndText.setText(textValue != null ? textValue : "0x0"); //$NON-NLS-1$

 		try
 		{
 			getEndAddress();
 		}
 		catch(Exception e)
 		{
 			fEndText.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_RED));
 		}

 		try
 		{
 			BigInteger length = getEndAddress().subtract(getStartAddress());
 			fLengthText.setText(length.toString());
 			if(length.compareTo(BigInteger.ZERO) <= 0) {
 				fLengthText.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_RED));
 			}
 		}
 		catch(Exception e)
 		{
 			fLengthText.setText("0");
 			fLengthText.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_RED));
 		}

 		fileButton.addSelectionListener(new SelectionListener() {

 			public void widgetDefaultSelected(SelectionEvent e) {
 				// TODO Auto-generated method stub

 			}

 			public void widgetSelected(SelectionEvent e) {
 				FileDialog dialog = new FileDialog(parent.getShell(), SWT.SAVE);
 				dialog.setText(Messages.getString("SRecordExporter.ChooseFile")); //$NON-NLS-1$
 				dialog.setFilterExtensions(new String[] { "*.*;*" } ); //$NON-NLS-1$
 				dialog.setFilterNames(new String[] { Messages.getString("Exporter.AllFiles") } ); //$NON-NLS-1$
 				dialog.setFileName(fFileText.getText().trim());
 				dialog.open();

 				String filename = dialog.getFileName();
 				if(filename != null && filename.length() != 0 )
 				{
 					fFileText.setText(dialog.getFilterPath() + File.separator + filename);
 				}

 				validate();
 			}

 		});

 		fStartText.addKeyListener(new KeyListener() {
 			public void keyReleased(KeyEvent e) {
 				try
 				{
 					fStartText.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_BLACK));
 					fEndText.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_BLACK));
 					fLengthText.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_BLACK));

 					BigInteger startAddress = getStartAddress();
 					BigInteger actualLength = getEndAddress().subtract(startAddress);
 					fLengthText.setText(actualLength.toString());

 					if(actualLength.compareTo(BigInteger.ZERO) <= 0) {
 						fStartText.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_RED));
 						fLengthText.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_RED));
 					}

 					if(startAddress.compareTo(BigInteger.ZERO) < 0) {
 						fStartText.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_RED));
 						fLengthText.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_RED));
 					}

 					BigInteger endAddress = getEndAddress();
 					if(endAddress.compareTo(BigInteger.ZERO) < 0) {
 						fEndText.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_RED));
 						fLengthText.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_RED));
 					}
 				}
 				catch(Exception ex)
 				{
 					fStartText.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_RED));
 					fLengthText.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_RED));
 				}

 				validate();
 			}

 			public void keyPressed(KeyEvent e) {}
 		});

 		fEndText.addKeyListener(new KeyListener() {
 			public void keyReleased(KeyEvent e) {
 				try
 				{
 					fStartText.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_BLACK));
 					fEndText.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_BLACK));
 					fLengthText.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_BLACK));

 					BigInteger actualLength = getEndAddress().subtract(getStartAddress());
 					fLengthText.setText(actualLength.toString());

 					if(actualLength.compareTo(BigInteger.ZERO) <= 0) {
 						fEndText.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_RED));
 						fLengthText.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_RED));
 					}

 					BigInteger startAddress = getStartAddress();
 					if(startAddress.compareTo(BigInteger.ZERO) < 0) {
 						fStartText.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_RED));
 						fLengthText.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_RED));
 					}

 					BigInteger endAddress = getEndAddress();
 					if(endAddress.compareTo(BigInteger.ZERO) < 0) {
 						fEndText.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_RED));
 						fLengthText.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_RED));
 					}
 				}
 				catch(Exception ex)
 				{
 					fEndText.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_RED));
 					fLengthText.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_RED));
 				}

 				validate();
 			}

 			public void keyPressed(KeyEvent e) {}

 		});

 		fLengthText.addKeyListener(new KeyListener() {
 			public void keyReleased(KeyEvent e) {
 				try
 				{
 					fStartText.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_BLACK));
 					fEndText.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_BLACK));
 					fLengthText.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_BLACK));

 					fStartText.setText(fStartText.getText().trim());

 					BigInteger length = getLength();
 					String endString;
 					BigInteger startAddress = getStartAddress();
 					BigInteger endAddress = startAddress.add(length);

 					if(length.compareTo(BigInteger.ZERO) <= 0) {
 						if(endAddress.compareTo(BigInteger.ZERO) < 0) {
 							endString = endAddress.toString(16); //$NON-NLS-1$
 						}
 						else {
 							endString = "0x" + endAddress.toString(16); //$NON-NLS-1$
 						}
 					}
 					else {
 						endString = "0x" + endAddress.toString(16); //$NON-NLS-1$
 					}

 					fEndText.setText(endString);

 					if(length.compareTo(BigInteger.ZERO) <= 0) {
 						fEndText.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_RED));
 						fLengthText.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_RED));
 					}

 					if(startAddress.compareTo(BigInteger.ZERO) < 0) {
 						fStartText.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_RED));
 					}

 					if(endAddress.compareTo(BigInteger.ZERO) < 0) {
 						fEndText.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_RED));
 					}
 				}
 				catch(Exception ex)
 				{
 					if ( fLengthText.getText().trim().length() != 0 ) {
 						fEndText.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_RED));
 					}
 					fLengthText.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_RED));
 				}

 				validate();
 			}

 			public void keyPressed(KeyEvent e) {

 			}
 		});

 		fFileText.addKeyListener(new KeyListener() {
 			public void keyReleased(KeyEvent e) {
 				validate();
 			}

 			public void keyPressed(KeyEvent e) {

 			}
 		});

 		composite.pack();
 		parent.pack();

 		/*
 		 *  We need to perform a validation. If we do it immediately we will get an exception
 		 *  because things are not totally setup. So we schedule an immediate running of  the
 		 *  validation. For a very brief time the view logically may show a state which  does
 		 *  not reflect the true state of affairs.  But the validate immediately corrects the
 		 *  info. In practice the user never sees the invalid state displayed, because of the
 		 *  speed of the draw of the dialog.
 		 */
 		Display.getDefault().asyncExec(new Runnable(){
 			public void run()
 			{
 				validate();
 			}
 		});

 		return composite;
 	}

 	public BigInteger getEndAddress()
 	{
 		String text = fEndText.getText();
 		text = text.trim();
 		boolean hex = text.startsWith("0x"); //$NON-NLS-1$
 		BigInteger endAddress = new BigInteger(hex ? text.substring(2) : text,
 			hex ? 16 : 10);

 		if ( endAddress.bitLength() > 32 ) {
 			throw(new NumberFormatException("End Address is larger than 32 bits"));
 		}

 		return endAddress;
 	}

 	public BigInteger getStartAddress()
 	{
 		String text = fStartText.getText();
 		text = text.trim();
 		boolean hex = text.startsWith("0x"); //$NON-NLS-1$
 		BigInteger startAddress = new BigInteger(hex ? text.substring(2) : text,
 			hex ? 16 : 10);

 		if ( startAddress.bitLength() > 32 ) {
 			throw(new NumberFormatException("Start Address is larger than 32 bits"));
 		}

 		return startAddress;
 	}

 	public BigInteger getLength()
 	{
 		String text = fLengthText.getText();
 		text = text.trim();
 		boolean hex = text.startsWith("0x"); //$NON-NLS-1$
 		BigInteger lengthAddress = new BigInteger(hex ? text.substring(2) : text,
 			hex ? 16 : 10);


 		return lengthAddress;
 	}

 	public File getFile()
 	{
 		return new File(fFileText.getText().trim());
 	}

 	private void validate()
 	{
 		boolean isValid = true;

 		try
 		{
 			getEndAddress();
 			getStartAddress();

 			BigInteger length = getLength();

 			if(length.compareTo(BigInteger.ZERO) <= 0)
 				isValid = false;

 			if ( fFileText.getText().trim().length() == 0 )
 				isValid = false;

 			File file = getFile();
 			if ( file != null ) {
 				File parentFile = file.getParentFile();

 				if(parentFile != null && ! parentFile.exists() )
 					isValid = false;

 				if(parentFile != null && parentFile.exists() && ( ! parentFile.canRead() || ! parentFile.isDirectory() ) )
 					isValid = false;

 				if ( file.isDirectory() )
 					isValid = false;
 			}
 		}
 		catch(Exception e)
 		{
 			isValid = false;
 		}

 		fParentDialog.setValid(isValid);
 	}

 	public String getId()
 	{
 		return "srecord"; //$NON-NLS-1$
 	}

 	public String getName()
 	{
 		return Messages.getString("SRecordExporter.Name"); //$NON-NLS-1$
 	}

 	public void exportMemory()
 	{
 		Job job = new Job("Memory Export to S-Record File"){ //$NON-NLS-1$
 			public IStatus run(IProgressMonitor monitor) {
 				try
 				{
 					// FIXME 4 byte default

 					BigInteger DATA_PER_RECORD = BigInteger.valueOf(16);

 					BigInteger transferAddress = fStartAddress;

 					FileWriter writer = new FileWriter(fOutputFile);

 					BigInteger jobs = fEndAddress.subtract(transferAddress).divide(DATA_PER_RECORD);
 					BigInteger factor = BigInteger.ONE;
 					if(jobs.compareTo(BigInteger.valueOf(0x7FFFFFFF)) > 0)
 					{
 						factor = jobs.divide(BigInteger.valueOf(0x7FFFFFFF));
 						jobs = jobs.divide(factor);
 					}

 					monitor.beginTask(Messages.getString("Exporter.ProgressTitle"), jobs.intValue()); //$NON-NLS-1$

 					BigInteger jobCount = BigInteger.ZERO;
 					while(transferAddress.compareTo(fEndAddress) < 0 && !monitor.isCanceled())
 					{
 						BigInteger length = DATA_PER_RECORD;
 						if(fEndAddress.subtract(transferAddress).compareTo(length) < 0)
 							length = fEndAddress.subtract(transferAddress);

 						monitor.subTask(String.format(Messages.getString("Exporter.Progress"), length.toString(10), transferAddress.toString(16))); //$NON-NLS-1$

 						writer.write("S3"); // FIXME 4 byte address //$NON-NLS-1$

 						StringBuilder buf = new StringBuilder();

 						BigInteger sRecordLength = BigInteger.valueOf(4); // address size
 						sRecordLength = sRecordLength.add(length);
 						sRecordLength = sRecordLength.add(BigInteger.ONE); // checksum

 						String transferAddressString = transferAddress.toString(16);

 						String lengthString = sRecordLength.toString(16);
 						if(lengthString.length() == 1)
 							buf.append("0"); //$NON-NLS-1$
 						buf.append(lengthString);
 						for(int i = 0; i < 8 - transferAddressString.length(); i++)
 							buf.append("0"); //$NON-NLS-1$
 						buf.append(transferAddressString);

 						// data

 						MemoryByte bytes[] = ((IMemoryBlockExtension) fMemoryBlock).getBytesFromAddress(transferAddress,
 							length.longValue() / ((IMemoryBlockExtension) fMemoryBlock).getAddressableSize());
 						for(int byteIndex = 0; byteIndex < bytes.length; byteIndex++)
 						{
 							String bString = BigInteger.valueOf(0xFF & bytes[byteIndex].getValue()).toString(16);
 							if(bString.length() == 1)
 								buf.append("0"); //$NON-NLS-1$
 							buf.append(bString);
 						}

 						/*
 						 * The least significant byte of the one's complement of the sum of the values
                          * represented by the pairs of characters making up the records length, address,
                          * and the code/data fields.
 						 */
 						byte checksum = 0;

 						for(int i = 0; i < buf.length(); i+=2)
 						{
 							BigInteger value = new BigInteger(buf.substring(i, i+2), 16);
 							checksum += value.byteValue();
 						}

 						String bString = BigInteger.valueOf(0xFF - checksum).and(BigInteger.valueOf(0xFF)).toString(16);
 						if(bString.length() == 1)
 							buf.append("0"); //$NON-NLS-1$
 						buf.append(bString);

 						writer.write(buf.toString().toUpperCase());
 						writer.write("\n"); //$NON-NLS-1$

 						transferAddress = transferAddress.add(length);

 						jobCount = jobCount.add(BigInteger.ONE);
 						if(jobCount.compareTo(factor) == 0)
 						{
 							jobCount = BigInteger.ZERO;
 							monitor.worked(1);
 						}
 					}

 					writer.close();
 					monitor.done();
 				} catch (IOException ex) {
 					MemoryTransportPlugin.getDefault().getLog().log(new Status(IStatus.ERROR, MemoryTransportPlugin.getUniqueIdentifier(),
 							DebugException.REQUEST_FAILED, Messages.getString("Exporter.ErrFile"), ex)); //$NON-NLS-1$
 					return new Status(IStatus.ERROR, MemoryTransportPlugin.getUniqueIdentifier(),
 					    	DebugException.REQUEST_FAILED, Messages.getString("Exporter.ErrFile"), ex); //$NON-NLS-1$

 				} catch (DebugException ex) {
 					MemoryTransportPlugin.getDefault().getLog().log(new Status(IStatus.ERROR, MemoryTransportPlugin.getUniqueIdentifier(),
 							DebugException.REQUEST_FAILED, Messages.getString("Exporter.ErrReadTarget"), ex)); //$NON-NLS-1$
 					return new Status(IStatus.ERROR, MemoryTransportPlugin.getUniqueIdentifier(),
 					    	DebugException.REQUEST_FAILED, Messages.getString("Exporter.ErrReadTarget"), ex);						 //$NON-NLS-1$
 				} catch (Exception ex) {
 					MemoryTransportPlugin.getDefault().getLog().log(new Status(IStatus.ERROR, MemoryTransportPlugin.getUniqueIdentifier(),
 							DebugException.INTERNAL_ERROR, Messages.getString("Exporter.Falure"), ex)); //$NON-NLS-1$
 					return new Status(IStatus.ERROR, MemoryTransportPlugin.getUniqueIdentifier(),
 				    	DebugException.INTERNAL_ERROR, Messages.getString("Exporter.Falure"), ex); //$NON-NLS-1$
 				}
 				return Status.OK_STATUS;
 			}};
 		job.setUser(true);
 		job.schedule();
 	}

 }
	/*******************************************************************************
	* Copyright (c) 2006, 2016 Wind River Systems, Inc. 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:
	* Ted R Williams (Wind River Systems, Inc.) - initial implementation
	*******************************************************************************/

	package org.eclipse.cdt.debug.ui.memory.transport;

	import java.io.File;
	import java.io.FileWriter;
	import java.io.IOException;
	import java.math.BigInteger;
	import org.eclipse.cdt.debug.ui.memory.transport.model.IMemoryExporter;
	import org.eclipse.core.runtime.IProgressMonitor;
	import org.eclipse.core.runtime.IStatus;
	import org.eclipse.core.runtime.Status;
	import org.eclipse.core.runtime.jobs.Job;
	import org.eclipse.debug.core.DebugException;
	import org.eclipse.debug.core.model.IMemoryBlock;
	import org.eclipse.debug.core.model.IMemoryBlockExtension;
	import org.eclipse.debug.core.model.MemoryByte;
	import org.eclipse.jface.dialogs.IDialogSettings;
	import org.eclipse.swt.SWT;
	import org.eclipse.swt.events.KeyEvent;
	import org.eclipse.swt.events.KeyListener;
	import org.eclipse.swt.events.SelectionEvent;
	import org.eclipse.swt.events.SelectionListener;
	import org.eclipse.swt.layout.FormAttachment;
	import org.eclipse.swt.layout.FormData;
	import org.eclipse.swt.layout.FormLayout;
	import org.eclipse.swt.widgets.Button;
	import org.eclipse.swt.widgets.Composite;
	import org.eclipse.swt.widgets.Control;
	import org.eclipse.swt.widgets.Display;
	import org.eclipse.swt.widgets.FileDialog;
	import org.eclipse.swt.widgets.Label;
	import org.eclipse.swt.widgets.Text;

	public class SRecordExporter implements IMemoryExporter
	{
	File fOutputFile;
	BigInteger fStartAddress;
	BigInteger fEndAddress;

	private Text fStartText;
	private Text fEndText;
	private Text fLengthText;
	private Text fFileText;

	private IMemoryBlock fMemoryBlock;

	private ExportMemoryDialog fParentDialog;

	private IDialogSettings fProperties;

	public Control createControl(final Composite parent, IMemoryBlock memBlock, IDialogSettings properties, ExportMemoryDialog parentDialog)
	{
	fMemoryBlock = memBlock;
	fParentDialog = parentDialog;
	fProperties = properties;

	Composite composite = new Composite(parent, SWT.NONE)
	{
	public void dispose()
	{
	fProperties.put(TRANSFER_FILE, fFileText.getText().trim());
	fProperties.put(TRANSFER_START, fStartText.getText().trim());
	fProperties.put(TRANSFER_END, fEndText.getText().trim());

	try
	{
	fStartAddress = getStartAddress();
	fEndAddress = getEndAddress();
	fOutputFile = getFile();
	}
	catch(Exception e) {}

	super.dispose();
	}
	};
	FormLayout formLayout = new FormLayout();
	formLayout.spacing = 5;
	formLayout.marginWidth = formLayout.marginHeight = 9;
	composite.setLayout(formLayout);

	// start address

	Label startLabel = new Label(composite, SWT.NONE);
	startLabel.setText(Messages.getString("SRecordExporter.StartAddress")); //$NON-NLS-1$
	FormData data = new FormData();
	startLabel.setLayoutData(data);

	fStartText = new Text(composite, SWT.BORDER);
	data = new FormData();
	data.left = new FormAttachment(startLabel);
	data.width = 120;
	fStartText.setLayoutData(data);

	// end address

	Label endLabel = new Label(composite, SWT.NONE);
	endLabel.setText(Messages.getString("SRecordExporter.EndAddress")); //$NON-NLS-1$
	data = new FormData();
	data.top = new FormAttachment(fStartText, 0, SWT.CENTER);
	data.left = new FormAttachment(fStartText);
	endLabel.setLayoutData(data);

	fEndText = new Text(composite, SWT.BORDER);
	data = new FormData();
	data.top = new FormAttachment(fStartText, 0, SWT.CENTER);
	data.left = new FormAttachment(endLabel);
	data.width = 120;
	fEndText.setLayoutData(data);

	// length

	Label lengthLabel = new Label(composite, SWT.NONE);
	lengthLabel.setText(Messages.getString("SRecordExporter.Length")); //$NON-NLS-1$
	data = new FormData();
	data.top = new FormAttachment(fStartText, 0, SWT.CENTER);
	data.left = new FormAttachment(fEndText);
	lengthLabel.setLayoutData(data);

	fLengthText = new Text(composite, SWT.BORDER);
	data = new FormData();
	data.top = new FormAttachment(fStartText, 0, SWT.CENTER);
	data.left = new FormAttachment(lengthLabel);
	data.width = 120;
	fLengthText.setLayoutData(data);

	// file

	Label fileLabel = new Label(composite, SWT.NONE);
	fFileText = new Text(composite, SWT.BORDER);
	Button fileButton = new Button(composite, SWT.PUSH);

	fileLabel.setText(Messages.getString("Exporter.FileName")); //$NON-NLS-1$
	data = new FormData();
	data.top = new FormAttachment(fileButton, 0, SWT.CENTER);
	fileLabel.setLayoutData(data);

	data = new FormData();
	data.top = new FormAttachment(fileButton, 0, SWT.CENTER);
	data.left = new FormAttachment(fileLabel);
	data.width = 360;
	fFileText.setLayoutData(data);

	fileButton.setText(Messages.getString("Exporter.Browse")); //$NON-NLS-1$
	data = new FormData();
	data.top = new FormAttachment(fLengthText);
	data.left = new FormAttachment(fFileText);
	fileButton.setLayoutData(data);

	// Restriction notice about 32-bit support

	Label spacingLabel = new Label(composite, SWT.NONE);

	spacingLabel.setText(""); //$NON-NLS-1$
	data = new FormData();
	data.left = new FormAttachment(0);
	data.top = new FormAttachment(fileLabel);
	spacingLabel.setLayoutData(data);

	Label restrictionLabel = new Label(composite, SWT.NONE);

	restrictionLabel.setText(Messages.getString("SRecordExporter.32BitLimitationMessage")); //$NON-NLS-1$
	data = new FormData();
	data.left = new FormAttachment(0);
	data.top = new FormAttachment(spacingLabel);
	restrictionLabel.setLayoutData(data);

	String textValue = fProperties.get(TRANSFER_FILE);
	fFileText.setText(textValue != null ? textValue : ""); //$NON-NLS-1$

	textValue = fProperties.get(TRANSFER_START);
	fStartText.setText(textValue != null ? textValue : "0x0"); //$NON-NLS-1$

	try
	{
	getStartAddress();
	}
	catch(Exception e)
	{
	fStartText.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_RED));
	}

	textValue = fProperties.get(TRANSFER_END);
	fEndText.setText(textValue != null ? textValue : "0x0"); //$NON-NLS-1$

	try
	{
	getEndAddress();
	}
	catch(Exception e)
	{
	fEndText.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_RED));
	}

	try
	{
	BigInteger length = getEndAddress().subtract(getStartAddress());
	fLengthText.setText(length.toString());
	if(length.compareTo(BigInteger.ZERO) <= 0) {
	fLengthText.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_RED));
	}
	}
	catch(Exception e)
	{
	fLengthText.setText("0");
	fLengthText.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_RED));
	}

	fileButton.addSelectionListener(new SelectionListener() {

	public void widgetDefaultSelected(SelectionEvent e) {
	// TODO Auto-generated method stub

	}

	public void widgetSelected(SelectionEvent e) {
	FileDialog dialog = new FileDialog(parent.getShell(), SWT.SAVE);
	dialog.setText(Messages.getString("SRecordExporter.ChooseFile")); //$NON-NLS-1$
	dialog.setFilterExtensions(new String[] { ".;*" } ); //$NON-NLS-1$
	dialog.setFilterNames(new String[] { Messages.getString("Exporter.AllFiles") } ); //$NON-NLS-1$
	dialog.setFileName(fFileText.getText().trim());
	dialog.open();

	String filename = dialog.getFileName();
	if(filename != null && filename.length() != 0 )
	{
	fFileText.setText(dialog.getFilterPath() + File.separator + filename);
	}

	validate();
	}

	});

	fStartText.addKeyListener(new KeyListener() {
	public void keyReleased(KeyEvent e) {
	try
	{
	fStartText.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_BLACK));
	fEndText.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_BLACK));
	fLengthText.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_BLACK));

	BigInteger startAddress = getStartAddress();
	BigInteger actualLength = getEndAddress().subtract(startAddress);
	fLengthText.setText(actualLength.toString());

	if(actualLength.compareTo(BigInteger.ZERO) <= 0) {
	fStartText.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_RED));
	fLengthText.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_RED));
	}

	if(startAddress.compareTo(BigInteger.ZERO) < 0) {
	fStartText.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_RED));
	fLengthText.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_RED));
	}

	BigInteger endAddress = getEndAddress();
	if(endAddress.compareTo(BigInteger.ZERO) < 0) {
	fEndText.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_RED));
	fLengthText.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_RED));
	}
	}
	catch(Exception ex)
	{
	fStartText.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_RED));
	fLengthText.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_RED));
	}

	validate();
	}

	public void keyPressed(KeyEvent e) {}
	});

	fEndText.addKeyListener(new KeyListener() {
	public void keyReleased(KeyEvent e) {
	try
	{
	fStartText.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_BLACK));
	fEndText.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_BLACK));
	fLengthText.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_BLACK));

	BigInteger actualLength = getEndAddress().subtract(getStartAddress());
	fLengthText.setText(actualLength.toString());

	if(actualLength.compareTo(BigInteger.ZERO) <= 0) {
	fEndText.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_RED));
	fLengthText.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_RED));
	}

	BigInteger startAddress = getStartAddress();
	if(startAddress.compareTo(BigInteger.ZERO) < 0) {
	fStartText.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_RED));
	fLengthText.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_RED));
	}

	BigInteger endAddress = getEndAddress();
	if(endAddress.compareTo(BigInteger.ZERO) < 0) {
	fEndText.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_RED));
	fLengthText.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_RED));
	}
	}
	catch(Exception ex)
	{
	fEndText.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_RED));
	fLengthText.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_RED));
	}

	validate();
	}

	public void keyPressed(KeyEvent e) {}

	});

	fLengthText.addKeyListener(new KeyListener() {
	public void keyReleased(KeyEvent e) {
	try
	{
	fStartText.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_BLACK));
	fEndText.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_BLACK));
	fLengthText.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_BLACK));

	fStartText.setText(fStartText.getText().trim());

	BigInteger length = getLength();
	String endString;
	BigInteger startAddress = getStartAddress();
	BigInteger endAddress = startAddress.add(length);

	if(length.compareTo(BigInteger.ZERO) <= 0) {
	if(endAddress.compareTo(BigInteger.ZERO) < 0) {
	endString = endAddress.toString(16); //$NON-NLS-1$
	}
	else {
	endString = "0x" + endAddress.toString(16); //$NON-NLS-1$
	}
	}
	else {
	endString = "0x" + endAddress.toString(16); //$NON-NLS-1$
	}

	fEndText.setText(endString);

	if(length.compareTo(BigInteger.ZERO) <= 0) {
	fEndText.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_RED));
	fLengthText.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_RED));
	}

	if(startAddress.compareTo(BigInteger.ZERO) < 0) {
	fStartText.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_RED));
	}

	if(endAddress.compareTo(BigInteger.ZERO) < 0) {
	fEndText.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_RED));
	}
	}
	catch(Exception ex)
	{
	if ( fLengthText.getText().trim().length() != 0 ) {
	fEndText.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_RED));
	}
	fLengthText.setForeground(Display.getDefault().getSystemColor(SWT.COLOR_RED));
	}

	validate();
	}

	public void keyPressed(KeyEvent e) {

	}
	});

	fFileText.addKeyListener(new KeyListener() {
	public void keyReleased(KeyEvent e) {
	validate();
	}

	public void keyPressed(KeyEvent e) {

	}
	});

	composite.pack();
	parent.pack();

	/*
	* We need to perform a validation. If we do it immediately we will get an exception
	* because things are not totally setup. So we schedule an immediate running of the
	* validation. For a very brief time the view logically may show a state which does
	* not reflect the true state of affairs. But the validate immediately corrects the
	* info. In practice the user never sees the invalid state displayed, because of the
	* speed of the draw of the dialog.
	*/
	Display.getDefault().asyncExec(new Runnable(){
	public void run()
	{
	validate();
	}
	});

	return composite;
	}

	public BigInteger getEndAddress()
	{
	String text = fEndText.getText();
	text = text.trim();
	boolean hex = text.startsWith("0x"); //$NON-NLS-1$
	BigInteger endAddress = new BigInteger(hex ? text.substring(2) : text,
	hex ? 16 : 10);

	if ( endAddress.bitLength() > 32 ) {
	throw(new NumberFormatException("End Address is larger than 32 bits"));
	}

	return endAddress;
	}

	public BigInteger getStartAddress()
	{
	String text = fStartText.getText();
	text = text.trim();
	boolean hex = text.startsWith("0x"); //$NON-NLS-1$
	BigInteger startAddress = new BigInteger(hex ? text.substring(2) : text,
	hex ? 16 : 10);

	if ( startAddress.bitLength() > 32 ) {
	throw(new NumberFormatException("Start Address is larger than 32 bits"));
	}

	return startAddress;
	}

	public BigInteger getLength()
	{
	String text = fLengthText.getText();
	text = text.trim();
	boolean hex = text.startsWith("0x"); //$NON-NLS-1$
	BigInteger lengthAddress = new BigInteger(hex ? text.substring(2) : text,
	hex ? 16 : 10);


	return lengthAddress;
	}

	public File getFile()
	{
	return new File(fFileText.getText().trim());
	}

	private void validate()
	{
	boolean isValid = true;

	try
	{
	getEndAddress();
	getStartAddress();

	BigInteger length = getLength();

	if(length.compareTo(BigInteger.ZERO) <= 0)
	isValid = false;

	if ( fFileText.getText().trim().length() == 0 )
	isValid = false;

	File file = getFile();
	if ( file != null ) {
	File parentFile = file.getParentFile();

	if(parentFile != null && ! parentFile.exists() )
	isValid = false;

	if(parentFile != null && parentFile.exists() && ( ! parentFile.canRead() \|\| ! parentFile.isDirectory() ) )
	isValid = false;

	if ( file.isDirectory() )
	isValid = false;
	}
	}
	catch(Exception e)
	{
	isValid = false;
	}

	fParentDialog.setValid(isValid);
	}

	public String getId()
	{
	return "srecord"; //$NON-NLS-1$
	}

	public String getName()
	{
	return Messages.getString("SRecordExporter.Name"); //$NON-NLS-1$
	}

	public void exportMemory()
	{
	Job job = new Job("Memory Export to S-Record File"){ //$NON-NLS-1$
	public IStatus run(IProgressMonitor monitor) {
	try
	{
	// FIXME 4 byte default

	BigInteger DATA_PER_RECORD = BigInteger.valueOf(16);

	BigInteger transferAddress = fStartAddress;

	FileWriter writer = new FileWriter(fOutputFile);

	BigInteger jobs = fEndAddress.subtract(transferAddress).divide(DATA_PER_RECORD);
	BigInteger factor = BigInteger.ONE;
	if(jobs.compareTo(BigInteger.valueOf(0x7FFFFFFF)) > 0)
	{
	factor = jobs.divide(BigInteger.valueOf(0x7FFFFFFF));
	jobs = jobs.divide(factor);
	}

	monitor.beginTask(Messages.getString("Exporter.ProgressTitle"), jobs.intValue()); //$NON-NLS-1$

	BigInteger jobCount = BigInteger.ZERO;
	while(transferAddress.compareTo(fEndAddress) < 0 && !monitor.isCanceled())
	{
	BigInteger length = DATA_PER_RECORD;
	if(fEndAddress.subtract(transferAddress).compareTo(length) < 0)
	length = fEndAddress.subtract(transferAddress);

	monitor.subTask(String.format(Messages.getString("Exporter.Progress"), length.toString(10), transferAddress.toString(16))); //$NON-NLS-1$

	writer.write("S3"); // FIXME 4 byte address //$NON-NLS-1$

	StringBuilder buf = new StringBuilder();

	BigInteger sRecordLength = BigInteger.valueOf(4); // address size
	sRecordLength = sRecordLength.add(length);
	sRecordLength = sRecordLength.add(BigInteger.ONE); // checksum

	String transferAddressString = transferAddress.toString(16);

	String lengthString = sRecordLength.toString(16);
	if(lengthString.length() == 1)
	buf.append("0"); //$NON-NLS-1$
	buf.append(lengthString);
	for(int i = 0; i < 8 - transferAddressString.length(); i++)
	buf.append("0"); //$NON-NLS-1$
	buf.append(transferAddressString);

	// data

	MemoryByte bytes[] = ((IMemoryBlockExtension) fMemoryBlock).getBytesFromAddress(transferAddress,
	length.longValue() / ((IMemoryBlockExtension) fMemoryBlock).getAddressableSize());
	for(int byteIndex = 0; byteIndex < bytes.length; byteIndex++)
	{
	String bString = BigInteger.valueOf(0xFF & bytes[byteIndex].getValue()).toString(16);
	if(bString.length() == 1)
	buf.append("0"); //$NON-NLS-1$
	buf.append(bString);
	}

	/*
	* The least significant byte of the one's complement of the sum of the values
	* represented by the pairs of characters making up the records length, address,
	* and the code/data fields.
	*/
	byte checksum = 0;

	for(int i = 0; i < buf.length(); i+=2)
	{
	BigInteger value = new BigInteger(buf.substring(i, i+2), 16);
	checksum += value.byteValue();
	}

	String bString = BigInteger.valueOf(0xFF - checksum).and(BigInteger.valueOf(0xFF)).toString(16);
	if(bString.length() == 1)
	buf.append("0"); //$NON-NLS-1$
	buf.append(bString);

	writer.write(buf.toString().toUpperCase());
	writer.write("\n"); //$NON-NLS-1$

	transferAddress = transferAddress.add(length);

	jobCount = jobCount.add(BigInteger.ONE);
	if(jobCount.compareTo(factor) == 0)
	{
	jobCount = BigInteger.ZERO;
	monitor.worked(1);
	}
	}

	writer.close();
	monitor.done();
	} catch (IOException ex) {
	MemoryTransportPlugin.getDefault().getLog().log(new Status(IStatus.ERROR, MemoryTransportPlugin.getUniqueIdentifier(),
	DebugException.REQUEST_FAILED, Messages.getString("Exporter.ErrFile"), ex)); //$NON-NLS-1$
	return new Status(IStatus.ERROR, MemoryTransportPlugin.getUniqueIdentifier(),
	DebugException.REQUEST_FAILED, Messages.getString("Exporter.ErrFile"), ex); //$NON-NLS-1$

	} catch (DebugException ex) {
	MemoryTransportPlugin.getDefault().getLog().log(new Status(IStatus.ERROR, MemoryTransportPlugin.getUniqueIdentifier(),
	DebugException.REQUEST_FAILED, Messages.getString("Exporter.ErrReadTarget"), ex)); //$NON-NLS-1$
	return new Status(IStatus.ERROR, MemoryTransportPlugin.getUniqueIdentifier(),
	DebugException.REQUEST_FAILED, Messages.getString("Exporter.ErrReadTarget"), ex); //$NON-NLS-1$
	} catch (Exception ex) {
	MemoryTransportPlugin.getDefault().getLog().log(new Status(IStatus.ERROR, MemoryTransportPlugin.getUniqueIdentifier(),
	DebugException.INTERNAL_ERROR, Messages.getString("Exporter.Falure"), ex)); //$NON-NLS-1$
	return new Status(IStatus.ERROR, MemoryTransportPlugin.getUniqueIdentifier(),
	DebugException.INTERNAL_ERROR, Messages.getString("Exporter.Falure"), ex); //$NON-NLS-1$
	}
	return Status.OK_STATUS;
	}};
	job.setUser(true);
	job.schedule();
	}

	}