Mercurial > projects > dwt-win
annotate dwt/program/Program.d @ 239:43b41c7fe84a
work on allow null strings and arrays
| author | Frank Benoit <benoit@tionex.de> |
|---|---|
| date | Fri, 20 Jun 2008 16:27:36 +0200 |
| parents | 36f5cb12e1a2 |
| children | fd9c62a2998e |
| rev | line source |
|---|---|
| 191 | 1 /******************************************************************************* |
| 2 * Copyright (c) 2000, 2007 IBM Corporation and others. | |
| 3 * All rights reserved. This program and the accompanying materials | |
| 4 * are made available under the terms of the Eclipse Public License v1.0 | |
| 5 * which accompanies this distribution, and is available at | |
| 6 * http://www.eclipse.org/legal/epl-v10.html | |
| 7 * | |
| 8 * Contributors: | |
| 9 * IBM Corporation - initial API and implementation | |
| 10 * Port to the D Programming language: | |
| 11 * Frank Benoit <benoit@tionex.de> | |
| 12 *******************************************************************************/ | |
| 13 module dwt.program.Program; | |
| 14 | |
| 15 import dwt.DWT; | |
| 16 import dwt.graphics.Image; | |
| 17 import dwt.graphics.ImageData; | |
| 18 import dwt.internal.win32.OS; | |
| 19 | |
| 20 import dwt.dwthelper.utils; | |
| 21 static import tango.text.convert.Utf; | |
| 22 | |
| 23 /** | |
| 24 * Instances of this class represent programs and | |
| 25 * their associated file extensions in the operating | |
| 26 * system. | |
| 27 */ | |
| 28 public final class Program { | |
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29 String name; |
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30 String command; |
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31 String iconName; |
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32 String extension; |
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33 static const String[] ARGUMENTS = ["%1"[], "%l", "%L"]; //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$ |
| 191 | 34 |
| 35 /** | |
| 36 * Prevents uninitialized instances from being created outside the package. | |
| 37 */ | |
| 38 this () { | |
| 39 } | |
| 40 | |
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41 static String assocQueryString (int assocStr, TCHAR[] key, bool expand) { |
| 191 | 42 TCHAR[] pszOut = NewTCHARs(0, 1024); |
| 43 uint[1] pcchOut; | |
| 44 pcchOut[0] = pszOut.length; | |
| 213 | 45 int flags = OS.ASSOCF_NOTRUNCATE | OS.ASSOCF_INIT_IGNOREUNKNOWN; |
| 46 int result = OS.AssocQueryString (flags, assocStr, key.ptr, null, pszOut.ptr, pcchOut.ptr); | |
| 191 | 47 if (result is OS.E_POINTER) { |
| 48 pszOut = NewTCHARs(0, pcchOut [0]); | |
| 213 | 49 result = OS.AssocQueryString (flags, assocStr, key.ptr, null, pszOut.ptr, pcchOut.ptr); |
| 191 | 50 } |
| 51 if (result is 0) { | |
| 52 if (!OS.IsWinCE && expand) { | |
| 53 int length_ = OS.ExpandEnvironmentStrings (pszOut.ptr, null, 0); | |
| 54 if (length_ !is 0) { | |
| 55 TCHAR[] lpDst = NewTCHARs (0, length_); | |
| 56 OS.ExpandEnvironmentStrings (pszOut.ptr, lpDst.ptr, length_); | |
| 57 return tango.text.convert.Utf.toString( lpDst[ 0 .. Math.max (0, length_ - 1) ] ); | |
| 58 } else { | |
| 59 return ""; | |
| 60 } | |
| 61 } else { | |
| 62 return tango.text.convert.Utf.toString( pszOut[ 0 .. Math.max (0, pcchOut [0] - 1)]); | |
| 63 } | |
| 64 } | |
| 65 return null; | |
| 66 } | |
| 67 | |
| 68 /** | |
| 69 * Finds the program that is associated with an extension. | |
| 70 * The extension may or may not begin with a '.'. Note that | |
| 71 * a <code>Display</code> must already exist to guarantee that | |
| 72 * this method returns an appropriate result. | |
| 73 * | |
| 74 * @param extension the program extension | |
| 75 * @return the program or <code>null</code> | |
| 76 * | |
| 77 */ | |
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78 public static Program findProgram (String extension) { |
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79 // DWT extension: allow null string |
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80 //if (extension is null) DWT.error (DWT.ERROR_NULL_ARGUMENT); |
| 191 | 81 if (extension.length is 0) return null; |
| 82 if (extension.charAt (0) !is '.') extension = "." ~ extension; //$NON-NLS-1$ | |
| 83 /* Use the character encoding for the default locale */ | |
| 84 TCHAR[] key = StrToTCHARs (0, extension, true); | |
| 85 Program program = null; | |
| 86 if (OS.IsWinCE) { | |
| 87 void*[1] phkResult; | |
| 88 if (OS.RegOpenKeyEx ( cast(void*)OS.HKEY_CLASSES_ROOT, key.ptr, 0, OS.KEY_READ, phkResult.ptr) !is 0) { | |
| 89 return null; | |
| 90 } | |
| 91 uint [1] lpcbData; | |
| 92 int result = OS.RegQueryValueEx (phkResult [0], null, null, null, null, lpcbData.ptr); | |
| 93 if (result is 0) { | |
| 94 TCHAR[] lpData = NewTCHARs (0, lpcbData [0] / TCHAR.sizeof); | |
| 95 result = OS.RegQueryValueEx (phkResult [0], null, null, null, cast(ubyte*)lpData.ptr, lpcbData.ptr); | |
| 96 if (result is 0) program = getProgram ( TCHARzToStr( lpData.ptr ), extension); | |
| 97 } | |
| 98 OS.RegCloseKey (phkResult [0]); | |
| 99 } else { | |
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100 String command = assocQueryString (OS.ASSOCSTR_COMMAND, key, true); |
| 191 | 101 if (command !is null) { |
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102 String name = null; |
| 191 | 103 if (name is null) name = assocQueryString (OS.ASSOCSTR_FRIENDLYDOCNAME, key, false); |
| 104 if (name is null) name = assocQueryString (OS.ASSOCSTR_FRIENDLYAPPNAME, key, false); | |
| 105 if (name is null) name = ""; | |
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106 String iconName = assocQueryString (OS.ASSOCSTR_DEFAULTICON, key, true); |
| 191 | 107 if (iconName is null) iconName = ""; |
| 108 program = new Program (); | |
| 109 program.name = name; | |
| 110 program.command = command; | |
| 111 program.iconName = iconName; | |
| 112 program.extension = extension; | |
| 113 } | |
| 114 } | |
| 115 return program; | |
| 116 } | |
| 117 | |
| 118 /** | |
| 119 * Answer all program extensions in the operating system. Note | |
| 120 * that a <code>Display</code> must already exist to guarantee | |
| 121 * that this method returns an appropriate result. | |
| 122 * | |
| 123 * @return an array of extensions | |
| 124 */ | |
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125 public static String [] getExtensions () { |
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126 String [] extensions = new String [1024]; |
| 191 | 127 /* Use the character encoding for the default locale */ |
| 128 TCHAR[] lpName = NewTCHARs (0, 1024); | |
| 129 uint [1] lpcName; lpcName[0] = lpName.length; | |
| 130 FILETIME ft; | |
| 131 int dwIndex = 0, count = 0; | |
| 132 while (OS.RegEnumKeyEx ( cast(void*)OS.HKEY_CLASSES_ROOT, dwIndex, lpName.ptr, lpcName.ptr, null, null, null, &ft) !is OS.ERROR_NO_MORE_ITEMS) { | |
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133 String extension = TCHARsToStr( lpName[0 .. lpcName[0] ]); |
| 191 | 134 lpcName [0] = lpName.length; |
| 135 if (extension.length > 0 && extension.charAt (0) is '.') { | |
| 136 if (count is extensions.length) { | |
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137 String[] newExtensions = new String[]( extensions.length + 1024 ); |
| 191 | 138 System.arraycopy (extensions, 0, newExtensions, 0, extensions.length); |
| 139 extensions = newExtensions; | |
| 140 } | |
| 141 extensions [count++] = extension; | |
| 142 } | |
| 143 dwIndex++; | |
| 144 } | |
| 145 if (count !is extensions.length) { | |
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146 String[] newExtension = new String[]( count ); |
| 191 | 147 System.arraycopy (extensions, 0, newExtension, 0, count); |
| 148 extensions = newExtension; | |
| 149 } | |
| 150 return extensions; | |
| 151 } | |
| 152 | |
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153 static String getKeyValue (String string, bool expand) { |
| 191 | 154 /* Use the character encoding for the default locale */ |
| 155 TCHAR[] key = StrToTCHARs (0, string, true); | |
| 156 void* [1] phkResult; | |
| 157 if (OS.RegOpenKeyEx (cast(void*)OS.HKEY_CLASSES_ROOT, key.ptr, 0, OS.KEY_READ, phkResult.ptr) !is 0) { | |
| 158 return null; | |
| 159 } | |
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160 String result = null; |
| 191 | 161 uint [1] lpcbData; |
| 162 if (OS.RegQueryValueEx (phkResult [0], null, null, null, null, lpcbData.ptr) is 0) { | |
| 163 result = ""; | |
| 164 int length_ = lpcbData [0] / TCHAR.sizeof; | |
| 165 if (length_ !is 0) { | |
| 166 /* Use the character encoding for the default locale */ | |
| 167 TCHAR[] lpData = NewTCHARs (0, length_); | |
| 168 if (OS.RegQueryValueEx (phkResult [0], null, null, null, cast(ubyte*)lpData.ptr, lpcbData.ptr) is 0) { | |
| 169 if (!OS.IsWinCE && expand) { | |
| 170 length_ = OS.ExpandEnvironmentStrings (lpData.ptr, null, 0); | |
| 171 if (length_ !is 0) { | |
| 172 TCHAR[] lpDst = NewTCHARs (0, length_); | |
| 173 OS.ExpandEnvironmentStrings (lpData.ptr, lpDst.ptr, length_); | |
| 174 result = tango.text.convert.Utf.toString ( lpDst[0 .. Math.max (0, length_ - 1) ] ); | |
| 175 } | |
| 176 } else { | |
| 177 length_ = Math.max (0, lpData.length - 1); | |
| 178 result = tango.text.convert.Utf.toString ( lpData[0 .. length_]); | |
| 179 } | |
| 180 } | |
| 181 } | |
| 182 } | |
| 183 if (phkResult [0] !is null) OS.RegCloseKey (phkResult [0]); | |
| 184 return result; | |
| 185 } | |
| 186 | |
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187 static Program getProgram (String key, String extension) { |
| 191 | 188 |
| 189 /* Name */ | |
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190 String name = getKeyValue (key, false); |
| 191 | 191 if (name is null || name.length is 0) { |
| 192 name = key; | |
| 193 } | |
| 194 | |
| 195 /* Command */ | |
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196 String DEFAULT_COMMAND = "\\shell"; //$NON-NLS-1$ |
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197 String defaultCommand = getKeyValue (key ~ DEFAULT_COMMAND, true); |
| 191 | 198 if (defaultCommand is null || defaultCommand.length is 0) defaultCommand = "open"; //$NON-NLS-1$ |
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199 String COMMAND = "\\shell\\" ~ defaultCommand ~ "\\command"; //$NON-NLS-1$ |
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200 String command = getKeyValue (key ~ COMMAND, true); |
| 191 | 201 if (command is null || command.length is 0) return null; |
| 202 | |
| 203 /* Icon */ | |
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204 String DEFAULT_ICON = "\\DefaultIcon"; //$NON-NLS-1$ |
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205 String iconName = getKeyValue (key ~ DEFAULT_ICON, true); |
| 191 | 206 if (iconName is null) iconName = ""; //$NON-NLS-1$ |
| 207 | |
| 208 /* Program */ | |
| 209 Program program = new Program (); | |
| 210 program.name = name; | |
| 211 program.command = command; | |
| 212 program.iconName = iconName; | |
| 213 program.extension = extension; | |
| 214 return program; | |
| 215 } | |
| 216 | |
| 217 /** | |
| 218 * Answers all available programs in the operating system. Note | |
| 219 * that a <code>Display</code> must already exist to guarantee | |
| 220 * that this method returns an appropriate result. | |
| 221 * | |
| 222 * @return an array of programs | |
| 223 */ | |
| 224 public static Program [] getPrograms () { | |
| 225 Program [] programs = new Program [1024]; | |
| 226 /* Use the character encoding for the default locale */ | |
| 227 TCHAR[] lpName = NewTCHARs (0, 1024); | |
| 228 uint [1] lpcName; lpcName[0] = lpName.length; | |
| 229 FILETIME ft; | |
| 230 int dwIndex = 0, count = 0; | |
| 231 while (OS.RegEnumKeyEx (cast(void*)OS.HKEY_CLASSES_ROOT, dwIndex, lpName.ptr, lpcName.ptr, null, null, null, &ft) !is OS.ERROR_NO_MORE_ITEMS) { | |
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232 String path = tango.text.convert.Utf.toString ( lpName[0 .. lpcName [0]]); |
| 191 | 233 lpcName [0] = lpName.length ; |
| 234 Program program = getProgram (path, null); | |
| 235 if (program !is null) { | |
| 236 if (count is programs.length) { | |
| 237 Program [] newPrograms = new Program [programs.length + 1024]; | |
| 238 System.arraycopy (programs, 0, newPrograms, 0, programs.length); | |
| 239 programs = newPrograms; | |
| 240 } | |
| 241 programs [count++] = program; | |
| 242 } | |
| 243 dwIndex++; | |
| 244 } | |
| 245 if (count !is programs.length) { | |
| 246 Program [] newPrograms = new Program [count]; | |
| 247 System.arraycopy (programs, 0, newPrograms, 0, count); | |
| 248 programs = newPrograms; | |
| 249 } | |
| 250 return programs; | |
| 251 } | |
| 252 | |
| 253 /** | |
| 213 | 254 * Launches the operating system executable associated with the file or |
| 255 * URL (http:// or https://). If the file is an executable then the | |
| 256 * executable is launched. Note that a <code>Display</code> must already | |
| 257 * exist to guarantee that this method returns an appropriate result. | |
| 191 | 258 * |
| 213 | 259 * @param fileName the file or program name or URL (http:// or https://) |
| 191 | 260 * @return <code>true</code> if the file is launched, otherwise <code>false</code> |
| 261 * | |
| 262 * @exception IllegalArgumentException <ul> | |
| 263 * <li>ERROR_NULL_ARGUMENT when fileName is null</li> | |
| 264 * </ul> | |
| 265 */ | |
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266 public static bool launch (String fileName) { |
| 191 | 267 if (fileName is null) DWT.error (DWT.ERROR_NULL_ARGUMENT); |
| 268 | |
| 269 /* Use the character encoding for the default locale */ | |
| 270 auto hHeap = OS.GetProcessHeap (); | |
| 271 TCHAR[] buffer = StrToTCHARs (0, fileName, true); | |
| 272 int byteCount = buffer.length * TCHAR.sizeof; | |
| 273 auto lpFile = cast(wchar*) OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, byteCount); | |
| 274 OS.MoveMemory (lpFile, buffer.ptr, byteCount); | |
| 275 SHELLEXECUTEINFO info; | |
| 276 info.cbSize = SHELLEXECUTEINFO.sizeof; | |
| 277 info.lpFile = lpFile; | |
| 278 info.nShow = OS.SW_SHOW; | |
| 279 bool result = cast(bool) OS.ShellExecuteEx (&info); | |
| 280 if (lpFile !is null) OS.HeapFree (hHeap, 0, lpFile); | |
| 281 return result; | |
| 282 } | |
| 283 | |
| 284 /** | |
| 285 * Executes the program with the file as the single argument | |
| 286 * in the operating system. It is the responsibility of the | |
| 287 * programmer to ensure that the file contains valid data for | |
| 288 * this program. | |
| 289 * | |
| 290 * @param fileName the file or program name | |
| 291 * @return <code>true</code> if the file is launched, otherwise <code>false</code> | |
| 292 * | |
| 293 * @exception IllegalArgumentException <ul> | |
| 294 * <li>ERROR_NULL_ARGUMENT when fileName is null</li> | |
| 295 * </ul> | |
| 296 */ | |
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297 public bool execute (String fileName) { |
| 191 | 298 if (fileName is null) DWT.error (DWT.ERROR_NULL_ARGUMENT); |
| 299 int index = 0; | |
| 300 bool append = true; | |
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301 String prefix = command, suffix = ""; //$NON-NLS-1$ |
| 191 | 302 while (index < ARGUMENTS.length) { |
| 303 int i = command.indexOf (ARGUMENTS [index]); | |
| 304 if (i !is -1) { | |
| 305 append = false; | |
| 306 prefix = command.substring (0, i); | |
| 307 suffix = command.substring (i + ARGUMENTS [index].length , command.length ); | |
| 308 break; | |
| 309 } | |
| 310 index++; | |
| 311 } | |
| 312 if (append) fileName = " \"" ~ fileName ~ "\""; | |
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313 String commandLine = prefix ~ fileName ~ suffix; |
| 191 | 314 auto hHeap = OS.GetProcessHeap (); |
| 315 /* Use the character encoding for the default locale */ | |
| 316 TCHAR[] buffer = StrToTCHARs (0, commandLine, true); | |
| 317 int byteCount = buffer.length * TCHAR.sizeof; | |
| 318 auto lpCommandLine = cast(TCHAR*)OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, byteCount); | |
| 319 OS.MoveMemory (lpCommandLine, buffer.ptr, byteCount); | |
| 320 STARTUPINFO lpStartupInfo; | |
| 321 lpStartupInfo.cb = STARTUPINFO.sizeof; | |
| 322 PROCESS_INFORMATION lpProcessInformation; | |
| 323 bool success = cast(bool) OS.CreateProcess (null, lpCommandLine, null, null, false, 0, null, null, &lpStartupInfo, &lpProcessInformation); | |
| 324 if (lpCommandLine !is null) OS.HeapFree (hHeap, 0, lpCommandLine); | |
| 325 if (lpProcessInformation.hProcess !is null) OS.CloseHandle (lpProcessInformation.hProcess); | |
| 326 if (lpProcessInformation.hThread !is null) OS.CloseHandle (lpProcessInformation.hThread); | |
| 327 return success; | |
| 328 } | |
| 329 | |
| 330 /** | |
| 331 * Returns the receiver's image data. This is the icon | |
| 332 * that is associated with the receiver in the operating | |
| 333 * system. | |
| 334 * | |
| 335 * @return the image data for the program, may be null | |
| 336 */ | |
| 337 public ImageData getImageData () { | |
| 338 if (extension !is null) { | |
| 339 SHFILEINFOW shfi; | |
| 340 int flags = OS.SHGFI_ICON | OS.SHGFI_SMALLICON | OS.SHGFI_USEFILEATTRIBUTES; | |
| 341 TCHAR[] pszPath = StrToTCHARs (0, extension, true); | |
| 342 OS.SHGetFileInfo (pszPath.ptr, OS.FILE_ATTRIBUTE_NORMAL, &shfi, SHFILEINFO.sizeof, flags); | |
| 343 if (shfi.hIcon !is null) { | |
| 344 Image image = Image.win32_new (null, DWT.ICON, shfi.hIcon); | |
| 345 ImageData imageData = image.getImageData (); | |
| 346 image.dispose (); | |
| 347 return imageData; | |
| 348 } | |
| 349 } | |
| 350 int nIconIndex = 0; | |
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351 String fileName = iconName; |
| 191 | 352 int index = iconName.indexOf (','); |
| 353 if (index !is -1) { | |
| 354 fileName = iconName.substring (0, index); | |
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355 String iconIndex = iconName.substring (index + 1, iconName.length ).trim (); |
| 191 | 356 try { |
| 357 nIconIndex = Integer.parseInt (iconIndex); | |
| 358 } catch (NumberFormatException e) {} | |
| 359 } | |
| 213 | 360 int length = fileName.length; |
| 361 if (length !is 0 && fileName.charAt (0) is '\"') { | |
| 362 if (fileName.charAt (length - 1) is '\"') { | |
| 363 fileName = fileName.substring (1, length - 1); | |
| 364 } | |
| 365 } | |
| 191 | 366 /* Use the character encoding for the default locale */ |
| 367 TCHAR[] lpszFile = StrToTCHARs (0, fileName, true); | |
| 368 HICON [1] phiconSmall, phiconLarge; | |
| 369 OS.ExtractIconEx (lpszFile.ptr, nIconIndex, phiconLarge.ptr, phiconSmall.ptr, 1); | |
| 370 if (phiconSmall [0] is null) return null; | |
| 371 Image image = Image.win32_new (null, DWT.ICON, phiconSmall [0]); | |
| 372 ImageData imageData = image.getImageData (); | |
| 373 image.dispose (); | |
| 374 return imageData; | |
| 375 } | |
| 376 | |
| 377 /** | |
| 378 * Returns the receiver's name. This is as short and | |
| 379 * descriptive a name as possible for the program. If | |
| 380 * the program has no descriptive name, this string may | |
| 381 * be the executable name, path or empty. | |
| 382 * | |
| 383 * @return the name of the program | |
| 384 */ | |
|
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reverted the char[] to String and use the an alias.
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parents:
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diff
changeset
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385 public String getName () { |
| 191 | 386 return name; |
| 387 } | |
| 388 | |
| 389 /** | |
| 390 * Compares the argument to the receiver, and returns true | |
| 391 * if they represent the <em>same</em> object using a class | |
| 392 * specific comparison. | |
| 393 * | |
| 394 * @param other the object to compare with this object | |
| 395 * @return <code>true</code> if the object is the same as this object and <code>false</code> otherwise | |
| 396 * | |
| 397 * @see #hashCode() | |
| 398 */ | |
| 399 public override int opEquals(Object other) { | |
| 400 if (this is other) return true; | |
| 401 if ( auto program = cast(Program)other ) { | |
| 402 return name.equals(program.name) && command.equals(program.command) | |
| 403 && iconName.equals(program.iconName); | |
| 404 } | |
| 405 return false; | |
| 406 } | |
| 407 | |
| 408 /** | |
| 409 * Returns an integer hash code for the receiver. Any two | |
| 410 * objects that return <code>true</code> when passed to | |
| 411 * <code>equals</code> must return the same value for this | |
| 412 * method. | |
| 413 * | |
| 414 * @return the receiver's hash | |
| 415 * | |
| 416 * @see #equals(Object) | |
| 417 */ | |
| 418 public override hash_t toHash() { | |
| 419 return .toHash(name) ^ .toHash(command) ^ .toHash(iconName); | |
| 420 } | |
| 421 | |
| 422 /** | |
| 423 * Returns a string containing a concise, human-readable | |
| 424 * description of the receiver. | |
| 425 * | |
| 426 * @return a string representation of the program | |
| 427 */ | |
|
212
ab60f3309436
reverted the char[] to String and use the an alias.
Frank Benoit <benoit@tionex.de>
parents:
197
diff
changeset
|
428 public String toString () { |
| 191 | 429 return "Program {" ~ name ~ "}"; //$NON-NLS-1$ //$NON-NLS-2$ |
| 430 } | |
| 431 | |
| 432 } |