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1
20
21 package org.apache.directory.ldapstudio.browser.common.dialogs;
22
23
24 import java.io.ByteArrayOutputStream  ;
25 import java.io.File ;
26 import java.io.FileInputStream ;
27 import java.io.FileNotFoundException ;
28 import java.io.FileOutputStream ;
29 import java.io.IOException ;
30
31 import org.apache.directory.ldapstudio.browser.common.BrowserCommonActivator;
32 import org.apache.directory.ldapstudio.browser.common.BrowserCommonConstants;
33 import org.eclipse.core.runtime.IStatus;
34 import org.eclipse.core.runtime.Status;
35 import org.eclipse.jface.dialogs.Dialog;
36 import org.eclipse.jface.dialogs.IDialogConstants;
37 import org.eclipse.jface.resource.JFaceResources;
38 import org.eclipse.swt.SWT;
39 import org.eclipse.swt.layout.GridData;
40 import org.eclipse.swt.widgets.Composite;
41 import org.eclipse.swt.widgets.Control;
42 import org.eclipse.swt.widgets.FileDialog;
43 import org.eclipse.swt.widgets.Shell;
44 import org.eclipse.swt.widgets.Text;
45
46
47 public class HexDialog extends Dialog
48 {
49
50 public static final String DIALOG_TITLE = "Hex Editor";
51
52 public static final double MAX_WIDTH = 550.0;
53
54 public static final double MAX_HEIGHT = 550.0;
55
56 public static final int LOAD_BUTTON_ID = 9998;
57
58 public static final int SAVE_BUTTON_ID = 9999;
59
60 private byte[] currentData;
61
62 private byte[] returnData;
63
64 private Text hexText;
65
66
67 public HexDialog( Shell parentShell, byte[] initialData )
68 {
69 super( parentShell );
70 super.setShellStyle( super.getShellStyle() | SWT.RESIZE );
71 this.currentData = initialData;
72 }
73
74
75 public boolean close()
76 {
77 return super.close();
78 }
79
80
81 protected void buttonPressed( int buttonId )
82 {
83 if ( buttonId == IDialogConstants.OK_ID )
84 {
85 this.returnData = this.currentData;
86 }
87 else if ( buttonId == SAVE_BUTTON_ID )
88 {
89 FileDialog fileDialog = new FileDialog( getShell(), SWT.SAVE );
90 fileDialog.setText( "Save Data" );
91 String returnedFileName = fileDialog.open();
93 if ( returnedFileName != null )
94 {
95 try
96 {
97 File file = new File ( returnedFileName );
98 FileOutputStream out = new FileOutputStream ( file );
99 out.write( currentData );
100 out.flush();
101 out.close();
102 }
103 catch ( FileNotFoundException e )
104 {
105 BrowserCommonActivator.getDefault().getExceptionHandler().handleException(
106 new Status( IStatus.ERROR, BrowserCommonActivator.PLUGIN_ID, IStatus.ERROR, "Can't write to file", e ) );
107 }
108 catch ( IOException e )
109 {
110 BrowserCommonActivator.getDefault().getExceptionHandler().handleException(
111 new Status( IStatus.ERROR, BrowserCommonActivator.PLUGIN_ID, IStatus.ERROR, "Can't write to file", e ) );
112 }
113 }
114 }
115 else if ( buttonId == LOAD_BUTTON_ID )
116 {
117 FileDialog fileDialog = new FileDialog( getShell(), SWT.OPEN );
118 fileDialog.setText( "Load Data" );
119 String returnedFileName = fileDialog.open();
120 if ( returnedFileName != null )
121 {
122 try
123 {
124 File file = new File ( returnedFileName );
125 FileInputStream in = new FileInputStream ( file );
126 ByteArrayOutputStream out = new ByteArrayOutputStream ( ( int ) file.length() );
127 byte[] buf = new byte[4096];
128 int len;
129 while ( ( len = in.read( buf ) ) > 0 )
130 {
131 out.write( buf, 0, len );
132 }
133 this.currentData = out.toByteArray();
134 hexText.setText( toFormattedHex( this.currentData ) );
135 out.close();
136 in.close();
137 }
138 catch ( FileNotFoundException e )
139 {
140 BrowserCommonActivator.getDefault().getExceptionHandler().handleException(
141 new Status( IStatus.ERROR, BrowserCommonActivator.PLUGIN_ID, IStatus.ERROR, "Can't read file", e ) );
142 }
143 catch ( IOException e )
144 {
145 BrowserCommonActivator.getDefault().getExceptionHandler().handleException(
146 new Status( IStatus.ERROR, BrowserCommonActivator.PLUGIN_ID, IStatus.ERROR, "Can't read file", e ) );
147 }
148 }
149 }
150 else
151 {
152 this.returnData = null;
153 }
154
155 super.buttonPressed( buttonId );
156 }
157
158
159 protected void configureShell( Shell shell )
160 {
161 super.configureShell( shell );
162 shell.setText( DIALOG_TITLE );
163 shell.setImage( BrowserCommonActivator.getDefault().getImage( BrowserCommonConstants.IMG_HEXEDITOR ) );
164 }
165
166
167 protected void createButtonsForButtonBar( Composite parent )
168 {
169 createButton( parent, LOAD_BUTTON_ID, "Load Data...", false );
170 createButton( parent, SAVE_BUTTON_ID, "Save Data...", false );
171 createButton( parent, IDialogConstants.OK_ID, IDialogConstants.OK_LABEL, false );
172 createButton( parent, IDialogConstants.CANCEL_ID, IDialogConstants.CANCEL_LABEL, false );
173 }
174
175
176 protected Control createDialogArea( Composite parent )
177 {
178 Composite composite = ( Composite ) super.createDialogArea( parent );
180
181 hexText = new Text( composite, SWT.MULTI | SWT.BORDER | SWT.H_SCROLL | SWT.V_SCROLL | SWT.READ_ONLY );
182 hexText.setFont( JFaceResources.getFont( JFaceResources.TEXT_FONT ) );
183
184 hexText.setText( toFormattedHex( this.currentData ) );
185 GridData gd = new GridData( GridData.FILL_BOTH );
188 gd.widthHint = convertHorizontalDLUsToPixels( ( int ) ( IDialogConstants.MINIMUM_MESSAGE_AREA_WIDTH * 1.6 ) );
189 gd.heightHint = convertHorizontalDLUsToPixels( IDialogConstants.MINIMUM_MESSAGE_AREA_WIDTH / 2 );
190 hexText.setLayoutData( gd );
191
192 applyDialogFont( composite );
193 return composite;
194 }
195
196
197 private String toFormattedHex( byte[] data )
198 {
199 StringBuffer sb = new StringBuffer ();
200 for ( int i = 0; i < data.length; i++ )
201 {
202 int b = ( int ) data[i];
203 if ( b < 0 )
204 b = 256 + b;
205 String s = Integer.toHexString( b );
206 if ( s.length() == 1 )
207 s = "0" + s;
208 sb.append( s ).append( " " );
209 if ( ( i + 1 ) % 8 == 0 )
210 sb.append( " " );
211
212 if ( i == data.length - 1 )
213 {
214 while ( ( i + 1 ) % 16 != 0 )
215 {
216 sb.append( " " );
217 if ( ( i + 1 ) % 8 == 0 )
218 sb.append( " " );
219 i++;
220 }
221 sb.append( " " );
222 }
223
224 if ( ( i + 1 ) % 16 == 0 )
225 {
226 sb.append( " " );
227 for ( int x = i - 16 + 1; x <= i && x < data.length; x++ )
228 {
229 if ( data[x] > 32 && data[x] < 127 )
230 sb.append( ( char ) data[x] );
231 else
232 sb.append( '.' );
233 if ( ( x + 1 ) % 8 == 0 )
234 sb.append( " " );
235 }
236 }
237
238 if ( ( i + 1 ) % 16 == 0 )
239 {
240 sb.append( "\r\n" );
241 }
242 }
243 return sb.toString();
244 }
245
246
247 public byte[] getData()
248 {
249 return this.returnData;
250 }
251 }
252 |
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