/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*
*/
package org.apache.directory.ldapstudio.browser.ui.dialogs;
import java.io.ByteArrayOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import org.apache.directory.ldapstudio.browser.ui.BrowserUIConstants;
import org.apache.directory.ldapstudio.browser.ui.BrowserUIPlugin;
import org.apache.directory.ldapstudio.browser.ui.ExceptionHandler;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Status;
import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.dialogs.IDialogConstants;
import org.eclipse.jface.resource.JFaceResources;
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.FileDialog;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Text;
public class HexDialog extends Dialog
{
public static final String DIALOG_TITLE = "Hex Editor";
public static final double MAX_WIDTH = 550.0;
public static final double MAX_HEIGHT = 550.0;
public static final int LOAD_BUTTON_ID = 9998;
public static final int SAVE_BUTTON_ID = 9999;
private byte[] currentData;
private byte[] returnData;
private Text hexText;
public HexDialog( Shell parentShell, byte[] initialData )
{
super( parentShell );
super.setShellStyle( super.getShellStyle() | SWT.RESIZE );
this.currentData = initialData;
}
public boolean close()
{
return super.close();
}
protected void buttonPressed( int buttonId )
{
if ( buttonId == IDialogConstants.OK_ID )
{
this.returnData = this.currentData;
}
else if ( buttonId == SAVE_BUTTON_ID )
{
FileDialog fileDialog = new FileDialog( getShell(), SWT.SAVE );
fileDialog.setText( "Save Data" );
// fileDialog.setFilterExtensions(new String[]{"*.jpg"});
String returnedFileName = fileDialog.open();
if ( returnedFileName != null )
{
try
{
File file = new File( returnedFileName );
FileOutputStream out = new FileOutputStream( file );
out.write( currentData );
out.flush();
out.close();
}
catch ( FileNotFoundException e )
{
new ExceptionHandler().handleException( new Status( IStatus.ERROR, BrowserUIPlugin.PLUGIN_ID,
IStatus.ERROR, "Can't write to file", e ) );
}
catch ( IOException e )
{
new ExceptionHandler().handleException( new Status( IStatus.ERROR, BrowserUIPlugin.PLUGIN_ID,
IStatus.ERROR, "Can't write to file", e ) );
}
}
}
else if ( buttonId == LOAD_BUTTON_ID )
{
FileDialog fileDialog = new FileDialog( getShell(), SWT.OPEN );
fileDialog.setText( "Load Data" );
String returnedFileName = fileDialog.open();
if ( returnedFileName != null )
{
try
{
File file = new File( returnedFileName );
FileInputStream in = new FileInputStream( file );
ByteArrayOutputStream out = new ByteArrayOutputStream( ( int ) file.length() );
byte[] buf = new byte[4096];
int len;
while ( ( len = in.read( buf ) ) > 0 )
{
out.write( buf, 0, len );
}
this.currentData = out.toByteArray();
hexText.setText( toFormattedHex( this.currentData ) );
out.close();
in.close();
}
catch ( FileNotFoundException e )
{
new ExceptionHandler().handleException( new Status( IStatus.ERROR, BrowserUIPlugin.PLUGIN_ID,
IStatus.ERROR, "Can't read file", e ) );
}
catch ( IOException e )
{
new ExceptionHandler().handleException( new Status( IStatus.ERROR, BrowserUIPlugin.PLUGIN_ID,
IStatus.ERROR, "Can't read file", e ) );
}
}
}
else
{
this.returnData = null;
}
super.buttonPressed( buttonId );
}
protected void configureShell( Shell shell )
{
super.configureShell( shell );
shell.setText( DIALOG_TITLE );
shell.setImage( BrowserUIPlugin.getDefault().getImage( BrowserUIConstants.IMG_HEXEDITOR ) );
}
protected void createButtonsForButtonBar( Composite parent )
{
createButton( parent, LOAD_BUTTON_ID, "Load Data...", false );
createButton( parent, SAVE_BUTTON_ID, "Save Data...", false );
createButton( parent, IDialogConstants.OK_ID, IDialogConstants.OK_LABEL, false );
createButton( parent, IDialogConstants.CANCEL_ID, IDialogConstants.CANCEL_LABEL, false );
}
protected Control createDialogArea( Composite parent )
{
// create composite
Composite composite = ( Composite ) super.createDialogArea( parent );
hexText = new Text( composite, SWT.MULTI | SWT.BORDER | SWT.H_SCROLL | SWT.V_SCROLL | SWT.READ_ONLY );
hexText.setFont( JFaceResources.getFont( JFaceResources.TEXT_FONT ) );
hexText.setText( toFormattedHex( this.currentData ) );
// GridData gd = new GridData(GridData.GRAB_HORIZONTAL |
// GridData.HORIZONTAL_ALIGN_FILL);
GridData gd = new GridData( GridData.FILL_BOTH );
gd.widthHint = convertHorizontalDLUsToPixels( ( int ) ( IDialogConstants.MINIMUM_MESSAGE_AREA_WIDTH * 1.6 ) );
gd.heightHint = convertHorizontalDLUsToPixels( IDialogConstants.MINIMUM_MESSAGE_AREA_WIDTH / 2 );
hexText.setLayoutData( gd );
applyDialogFont( composite );
return composite;
}
private String toFormattedHex( byte[] data )
{
StringBuffer sb = new StringBuffer();
for ( int i = 0; i < data.length; i++ )
{
int b = ( int ) data[i];
if ( b < 0 )
b = 256 + b;
String s = Integer.toHexString( b );
if ( s.length() == 1 )
s = "0" + s;
sb.append( s ).append( " " );
if ( ( i + 1 ) % 8 == 0 )
sb.append( " " );
if ( i == data.length - 1 )
{
while ( ( i + 1 ) % 16 != 0 )
{
sb.append( " " );
if ( ( i + 1 ) % 8 == 0 )
sb.append( " " );
i++;
}
sb.append( " " );
}
if ( ( i + 1 ) % 16 == 0 )
{
sb.append( " " );
for ( int x = i - 16 + 1; x <= i && x < data.length; x++ )
{
if ( data[x] > 32 && data[x] < 127 )
sb.append( ( char ) data[x] );
else
sb.append( '.' );
if ( ( x + 1 ) % 8 == 0 )
sb.append( " " );
}
}
if ( ( i + 1 ) % 16 == 0 )
{
sb.append( "\r\n" );
}
}
return sb.toString();
}
public byte[] getData()
{
return this.returnData;
}
}