src/TortoiseUDiff/MainWindow.cpp

   1 // TortoiseSVN - a Windows shell extension for easy version control\r
   2 \r
   3 // Copyright (C) 2003-2008 - TortoiseSVN\r
   4 \r
   5 // This program is free software; you can redistribute it and/or\r
   6 // modify it under the terms of the GNU General Public License\r
   7 // as published by the Free Software Foundation; either version 2\r
   8 // of the License, or (at your option) any later version.\r
   9 \r
  10 // This program is distributed in the hope that it will be useful,\r
  11 // but WITHOUT ANY WARRANTY; without even the implied warranty of\r
  12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\r
  13 // GNU General Public License for more details.\r
  14 \r
  15 // You should have received a copy of the GNU General Public License\r
  16 // along with this program; if not, write to the Free Software Foundation,\r
  17 // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.\r
  18 //\r
  19 #include "StdAfx.h"\r
  20 #include "MainWindow.h"\r
  21 #include "UnicodeUtils.h"\r
  22 \r
  23 CMainWindow::CMainWindow(HINSTANCE hInst, const WNDCLASSEX* wcx /* = NULL*/) \r
  24         : CWindow(hInst, wcx)\r
  25         , m_bShowFindBar(false)\r
  26 {\r
  27         SetWindowTitle(_T("TortoiseUDiff"));\r
  28 }\r
  29 \r
  30 CMainWindow::~CMainWindow(void)\r
  31 {\r
  32 }\r
  33 \r
  34 bool CMainWindow::RegisterAndCreateWindow()\r
  35 {\r
  36         WNDCLASSEX wcx; \r
  37 \r
  38         // Fill in the window class structure with default parameters \r
  39         wcx.cbSize = sizeof(WNDCLASSEX);\r
  40         wcx.style = CS_HREDRAW | CS_VREDRAW;\r
  41         wcx.lpfnWndProc = CWindow::stWinMsgHandler;\r
  42         wcx.cbClsExtra = 0;\r
  43         wcx.cbWndExtra = 0;\r
  44         wcx.hInstance = hResource;\r
  45         wcx.hCursor = NULL;\r
  46         wcx.lpszClassName = ResString(hResource, IDS_APP_TITLE);\r
  47         wcx.hIcon = LoadIcon(hResource, MAKEINTRESOURCE(IDI_TORTOISEUDIFF));\r
  48         wcx.hbrBackground = (HBRUSH)(COLOR_3DFACE+1);\r
  49         wcx.lpszMenuName = MAKEINTRESOURCE(IDC_TORTOISEUDIFF);\r
  50         wcx.hIconSm     = LoadIcon(wcx.hInstance, MAKEINTRESOURCE(IDI_TORTOISEUDIFF));\r
  51         if (RegisterWindow(&wcx))\r
  52         {\r
  53                 if (Create(WS_CAPTION | WS_MAXIMIZEBOX | WS_MINIMIZEBOX | WS_SIZEBOX | WS_SYSMENU | WS_CLIPCHILDREN, NULL))\r
  54                 {\r
  55                         m_FindBar.SetParent(*this);\r
  56                         m_FindBar.Create(hResource, IDD_FINDBAR, *this);\r
  57                         ShowWindow(*this, SW_SHOW);\r
  58                         UpdateWindow(*this);\r
  59                         return true;\r
  60                 }\r
  61         }\r
  62         return false;\r
  63 }\r
  64 \r
  65 LRESULT CALLBACK CMainWindow::WinMsgHandler(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)\r
  66 {\r
  67         switch (uMsg)\r
  68         {\r
  69         case WM_CREATE:\r
  70                 {\r
  71                         m_hwnd = hwnd;\r
  72                         Initialize();\r
  73                 }\r
  74                 break;\r
  75         case WM_COMMAND:\r
  76                 {\r
  77                         return DoCommand(LOWORD(wParam));\r
  78                 }\r
  79                 break;\r
  80         case WM_MOUSEWHEEL:\r
  81                 {\r
  82                         if (GET_KEYSTATE_WPARAM(wParam) == MK_SHIFT)\r
  83                         {\r
  84                                 // scroll sideways\r
  85                                 SendEditor(SCI_LINESCROLL, -GET_WHEEL_DELTA_WPARAM(wParam)/40, 0);\r
  86                         }\r
  87                         else\r
  88                                 return DefWindowProc(hwnd, uMsg, wParam, lParam);\r
  89                 }\r
  90                 break;\r
  91         case WM_SIZE:\r
  92                 {\r
  93                         RECT rect;\r
  94                         GetClientRect(*this, &rect);\r
  95                         if (m_bShowFindBar)\r
  96                         {\r
  97                                 ::SetWindowPos(m_hWndEdit, HWND_TOP, \r
  98                                         rect.left, rect.top,\r
  99                                         rect.right-rect.left, rect.bottom-rect.top-30,\r
 100                                         SWP_SHOWWINDOW);\r
 101                                 ::SetWindowPos(m_FindBar, HWND_TOP,\r
 102                                         rect.left, rect.bottom-30,\r
 103                                         rect.right-rect.left, 30,\r
 104                                         SWP_SHOWWINDOW);\r
 105                         }\r
 106                         else\r
 107                         {\r
 108                                 ::SetWindowPos(m_hWndEdit, HWND_TOP, \r
 109                                         rect.left, rect.top,\r
 110                                         rect.right-rect.left, rect.bottom-rect.top,\r
 111                                         SWP_SHOWWINDOW);\r
 112                                 ::ShowWindow(m_FindBar, SW_HIDE);\r
 113                         }\r
 114                 }\r
 115                 break;\r
 116         case WM_GETMINMAXINFO:\r
 117                 {\r
 118                         MINMAXINFO * mmi = (MINMAXINFO*)lParam;\r
 119                         mmi->ptMinTrackSize.x = 100;\r
 120                         mmi->ptMinTrackSize.y = 100;\r
 121                         return 0;\r
 122                 }\r
 123                 break;\r
 124         case WM_DESTROY:\r
 125                 PostQuitMessage(0);\r
 126                 break;\r
 127         case WM_CLOSE:\r
 128                 {\r
 129                         CRegStdWORD w = CRegStdWORD(_T("Software\\TortoiseSVN\\UDiffViewerWidth"), (DWORD)CW_USEDEFAULT);\r
 130                         CRegStdWORD h = CRegStdWORD(_T("Software\\TortoiseSVN\\UDiffViewerHeight"), (DWORD)CW_USEDEFAULT);\r
 131                         CRegStdWORD p = CRegStdWORD(_T("Software\\TortoiseSVN\\UDiffViewerPos"), 0);\r
 132 \r
 133                         RECT rect;\r
 134                         ::GetWindowRect(*this, &rect);\r
 135                         w = rect.right-rect.left;\r
 136                         h = rect.bottom-rect.top;\r
 137                         p = MAKELONG(rect.left, rect.top);\r
 138                 }\r
 139                 ::DestroyWindow(m_hwnd);\r
 140                 break;\r
 141         case WM_SETFOCUS:\r
 142                 SetFocus(m_hWndEdit);\r
 143                 break;\r
 144         case COMMITMONITOR_FINDMSGNEXT:\r
 145                 {\r
 146                         SendEditor(SCI_CHARRIGHT);\r
 147                         SendEditor(SCI_SEARCHANCHOR);\r
 148                         m_bMatchCase = !!wParam;\r
 149                         m_findtext = (LPCTSTR)lParam;\r
 150                         SendEditor(SCI_SEARCHNEXT, m_bMatchCase ? SCFIND_MATCHCASE : 0, (LPARAM)CUnicodeUtils::StdGetUTF8(m_findtext).c_str());\r
 151                         SendEditor(SCI_SCROLLCARET);\r
 152                 }\r
 153                 break;\r
 154         case COMMITMONITOR_FINDMSGPREV:\r
 155                 {\r
 156                         SendEditor(SCI_SEARCHANCHOR);\r
 157                         m_bMatchCase = !!wParam;\r
 158                         m_findtext = (LPCTSTR)lParam;\r
 159                         SendEditor(SCI_SEARCHPREV, m_bMatchCase ? SCFIND_MATCHCASE : 0, (LPARAM)CUnicodeUtils::StdGetUTF8(m_findtext).c_str());\r
 160                         SendEditor(SCI_SCROLLCARET);\r
 161                 }\r
 162                 break;\r
 163         case COMMITMONITOR_FINDEXIT:\r
 164                 {\r
 165                         RECT rect;\r
 166                         GetClientRect(*this, &rect);\r
 167                         m_bShowFindBar = false;\r
 168                         ::ShowWindow(m_FindBar, SW_HIDE);\r
 169                         ::SetWindowPos(m_hWndEdit, HWND_TOP, \r
 170                                 rect.left, rect.top,\r
 171                                 rect.right-rect.left, rect.bottom-rect.top,\r
 172                                 SWP_SHOWWINDOW);\r
 173                 }\r
 174                 break;\r
 175         case COMMITMONITOR_FINDRESET:\r
 176                 SendEditor(SCI_SETSELECTIONSTART, 0);\r
 177                 SendEditor(SCI_SETSELECTIONEND, 0);\r
 178                 SendEditor(SCI_SEARCHANCHOR);\r
 179                 break;\r
 180         default:\r
 181                 return DefWindowProc(hwnd, uMsg, wParam, lParam);\r
 182         }\r
 183 \r
 184         return 0;\r
 185 };\r
 186 \r
 187 LRESULT CMainWindow::DoCommand(int id)\r
 188 {\r
 189         switch (id) \r
 190         {\r
 191         case ID_FILE_EXIT:\r
 192                 ::PostQuitMessage(0);\r
 193                 return 0;\r
 194         case IDM_SHOWFINDBAR:\r
 195                 {\r
 196                         m_bShowFindBar = true;\r
 197                         ::ShowWindow(m_FindBar, SW_SHOW);\r
 198                         RECT rect;\r
 199                         GetClientRect(*this, &rect);\r
 200                         ::SetWindowPos(m_hWndEdit, HWND_TOP, \r
 201                                 rect.left, rect.top,\r
 202                                 rect.right-rect.left, rect.bottom-rect.top-30,\r
 203                                 SWP_SHOWWINDOW);\r
 204                         ::SetWindowPos(m_FindBar, HWND_TOP,\r
 205                                 rect.left, rect.bottom-30,\r
 206                                 rect.right-rect.left, 30,\r
 207                                 SWP_SHOWWINDOW);\r
 208                         ::SetFocus(m_FindBar);\r
 209                         SendEditor(SCI_SETSELECTIONSTART, 0);\r
 210                         SendEditor(SCI_SETSELECTIONEND, 0);\r
 211                         SendEditor(SCI_SEARCHANCHOR);\r
 212                 }\r
 213                 break;\r
 214         case IDM_FINDNEXT:\r
 215                 SendEditor(SCI_CHARRIGHT);\r
 216                 SendEditor(SCI_SEARCHANCHOR);\r
 217                 SendEditor(SCI_SEARCHNEXT, m_bMatchCase ? SCFIND_MATCHCASE : 0, (LPARAM)CUnicodeUtils::StdGetUTF8(m_findtext).c_str());\r
 218                 SendEditor(SCI_SCROLLCARET);\r
 219                 break;\r
 220         case IDM_FINDPREV:\r
 221                 SendEditor(SCI_SEARCHANCHOR);\r
 222                 SendEditor(SCI_SEARCHPREV, m_bMatchCase ? SCFIND_MATCHCASE : 0, (LPARAM)CUnicodeUtils::StdGetUTF8(m_findtext).c_str());\r
 223                 SendEditor(SCI_SCROLLCARET);\r
 224                 break;\r
 225         case IDM_FINDEXIT:\r
 226                 {\r
 227                         if (IsWindowVisible(m_FindBar))\r
 228                         {\r
 229                                 RECT rect;\r
 230                                 GetClientRect(*this, &rect);\r
 231                                 m_bShowFindBar = false;\r
 232                                 ::ShowWindow(m_FindBar, SW_HIDE);\r
 233                                 ::SetWindowPos(m_hWndEdit, HWND_TOP, \r
 234                                         rect.left, rect.top,\r
 235                                         rect.right-rect.left, rect.bottom-rect.top,\r
 236                                         SWP_SHOWWINDOW);\r
 237                         }\r
 238                         else\r
 239                                 PostQuitMessage(0);\r
 240                 }\r
 241                 break;\r
 242         default:\r
 243                 break;\r
 244         };\r
 245         return 1;\r
 246 }\r
 247 \r
 248 \r
 249 LRESULT CMainWindow::SendEditor(UINT Msg, WPARAM wParam, LPARAM lParam)\r
 250 {\r
 251         if (m_directFunction)\r
 252         {\r
 253                 return ((SciFnDirect) m_directFunction)(m_directPointer, Msg, wParam, lParam);\r
 254         }\r
 255         return ::SendMessage(m_hWndEdit, Msg, wParam, lParam);  \r
 256 }\r
 257 \r
 258 bool CMainWindow::Initialize()\r
 259 {\r
 260         CRegStdWORD pos(_T("Software\\TortoiseSVN\\UDiffViewerPos"), 0);\r
 261         CRegStdWORD width(_T("Software\\TortoiseSVN\\UDiffViewerWidth"), (DWORD)640);\r
 262         CRegStdWORD height(_T("Software\\TortoiseSVN\\UDiffViewerHeight"), (DWORD)480);\r
 263         if (DWORD(pos) && DWORD(width) && DWORD(height))\r
 264         {\r
 265                 RECT rc;\r
 266                 rc.left = LOWORD(DWORD(pos));\r
 267                 rc.top = HIWORD(DWORD(pos));\r
 268                 rc.right = rc.left + DWORD(width);\r
 269                 rc.bottom = rc.top + DWORD(height);\r
 270                 HMONITOR hMon = MonitorFromRect(&rc, MONITOR_DEFAULTTONULL);\r
 271                 if (hMon)\r
 272                 {\r
 273                         // only restore the window position if the monitor is valid\r
 274                         MoveWindow(*this, LOWORD(DWORD(pos)), HIWORD(DWORD(pos)),\r
 275                                 DWORD(width), DWORD(height), FALSE);\r
 276                 }\r
 277         }\r
 278 \r
 279         m_hWndEdit = ::CreateWindow(\r
 280                 _T("Scintilla"),\r
 281                 _T("Source"),\r
 282                 WS_CHILD | WS_VSCROLL | WS_HSCROLL | WS_CLIPCHILDREN,\r
 283                 CW_USEDEFAULT, CW_USEDEFAULT,\r
 284                 CW_USEDEFAULT, CW_USEDEFAULT,\r
 285                 *this,\r
 286                 0,\r
 287                 hResource,\r
 288                 0);\r
 289         if (m_hWndEdit == NULL)\r
 290                 return false;\r
 291 \r
 292         RECT rect;\r
 293         GetClientRect(*this, &rect);\r
 294         ::SetWindowPos(m_hWndEdit, HWND_TOP, \r
 295                 rect.left, rect.top,\r
 296                 rect.right-rect.left, rect.bottom-rect.top,\r
 297                 SWP_SHOWWINDOW);\r
 298 \r
 299         m_directFunction = SendMessage(m_hWndEdit, SCI_GETDIRECTFUNCTION, 0, 0);\r
 300         m_directPointer = SendMessage(m_hWndEdit, SCI_GETDIRECTPOINTER, 0, 0);\r
 301 \r
 302         // Set up the global default style. These attributes are used wherever no explicit choices are made.\r
 303         SetAStyle(STYLE_DEFAULT, ::GetSysColor(COLOR_WINDOWTEXT), ::GetSysColor(COLOR_WINDOW),\r
 304                 // Reusing TortoiseBlame's setting which already have an user friendly\r
 305                 // pane in TortoiseSVN's Settings dialog, while there is no such\r
 306                 // pane for TortoiseUDiff.\r
 307                 CRegStdWORD(_T("Software\\TortoiseSVN\\BlameFontSize"), 10),\r
 308                 WideToMultibyte(CRegStdString(_T("Software\\TortoiseSVN\\BlameFontName"), _T("Courier New"))).c_str());\r
 309         SendEditor(SCI_SETTABWIDTH, 4);\r
 310         SendEditor(SCI_SETREADONLY, TRUE);\r
 311         LRESULT pix = SendEditor(SCI_TEXTWIDTH, STYLE_LINENUMBER, (LPARAM)"_99999");\r
 312         SendEditor(SCI_SETMARGINWIDTHN, 0, pix);\r
 313         SendEditor(SCI_SETMARGINWIDTHN, 1);\r
 314         SendEditor(SCI_SETMARGINWIDTHN, 2);\r
 315         //Set the default windows colors for edit controls\r
 316         SendEditor(SCI_STYLESETFORE, STYLE_DEFAULT, ::GetSysColor(COLOR_WINDOWTEXT));\r
 317         SendEditor(SCI_STYLESETBACK, STYLE_DEFAULT, ::GetSysColor(COLOR_WINDOW));\r
 318         SendEditor(SCI_SETSELFORE, TRUE, ::GetSysColor(COLOR_HIGHLIGHTTEXT));\r
 319         SendEditor(SCI_SETSELBACK, TRUE, ::GetSysColor(COLOR_HIGHLIGHT));\r
 320         SendEditor(SCI_SETCARETFORE, ::GetSysColor(COLOR_WINDOWTEXT));\r
 321 \r
 322         return true;\r
 323 }\r
 324 \r
 325 bool CMainWindow::LoadFile(LPCTSTR filename)\r
 326 {\r
 327         SendEditor(SCI_SETREADONLY, FALSE);\r
 328         SendEditor(SCI_CLEARALL);\r
 329         SendEditor(EM_EMPTYUNDOBUFFER);\r
 330         SendEditor(SCI_SETSAVEPOINT);\r
 331         SendEditor(SCI_CANCEL);\r
 332         SendEditor(SCI_SETUNDOCOLLECTION, 0);\r
 333 \r
 334         FILE *fp = NULL;\r
 335         _tfopen_s(&fp, filename, _T("rb"));\r
 336         if (fp) \r
 337         {\r
 338                 //SetTitle();\r
 339                 char data[4096];\r
 340                 int lenFile = fread(data, 1, sizeof(data), fp);\r
 341                 bool bUTF8 = IsUTF8(data, lenFile);\r
 342                 while (lenFile > 0) \r
 343                 {\r
 344                         SendEditor(SCI_ADDTEXT, lenFile,\r
 345                                 reinterpret_cast<LPARAM>(static_cast<char *>(data)));\r
 346                         lenFile = fread(data, 1, sizeof(data), fp);\r
 347                 }\r
 348                 fclose(fp);\r
 349                 SendEditor(SCI_SETCODEPAGE, bUTF8 ? SC_CP_UTF8 : GetACP());\r
 350         }\r
 351         else \r
 352         {\r
 353                 return false;\r
 354         }\r
 355 \r
 356         SendEditor(SCI_SETUNDOCOLLECTION, 1);\r
 357         ::SetFocus(m_hWndEdit);\r
 358         SendEditor(EM_EMPTYUNDOBUFFER);\r
 359         SendEditor(SCI_SETSAVEPOINT);\r
 360         SendEditor(SCI_GOTOPOS, 0);\r
 361         SendEditor(SCI_SETREADONLY, TRUE);\r
 362 \r
 363         SendEditor(SCI_CLEARDOCUMENTSTYLE, 0, 0);\r
 364         SendEditor(SCI_SETSTYLEBITS, 5, 0);\r
 365 \r
 366         //SetAStyle(SCE_DIFF_DEFAULT, RGB(0, 0, 0));\r
 367         SetAStyle(SCE_DIFF_COMMAND, RGB(0x0A, 0x24, 0x36));\r
 368         SetAStyle(SCE_DIFF_POSITION, RGB(0xFF, 0, 0));\r
 369         SetAStyle(SCE_DIFF_HEADER, RGB(0x80, 0, 0), RGB(0xFF, 0xFF, 0x80));\r
 370         SetAStyle(SCE_DIFF_COMMENT, RGB(0, 0x80, 0));\r
 371         SendEditor(SCI_STYLESETBOLD, SCE_DIFF_COMMENT, TRUE);\r
 372         SetAStyle(SCE_DIFF_DELETED, ::GetSysColor(COLOR_WINDOWTEXT), RGB(0xFF, 0x80, 0x80));\r
 373         SetAStyle(SCE_DIFF_ADDED, ::GetSysColor(COLOR_WINDOWTEXT), RGB(0x80, 0xFF, 0x80));\r
 374 \r
 375         SendEditor(SCI_SETLEXER, SCLEX_DIFF);\r
 376         SendEditor(SCI_SETKEYWORDS, 0, (LPARAM)"revision");\r
 377         SendEditor(SCI_COLOURISE, 0, -1);\r
 378         ::ShowWindow(m_hWndEdit, SW_SHOW);\r
 379         return true;\r
 380 }\r
 381 \r
 382 void CMainWindow::SetTitle(LPCTSTR title)\r
 383 {\r
 384         int len = _tcslen(title);\r
 385         TCHAR * pBuf = new TCHAR[len+40];\r
 386         _stprintf_s(pBuf, len+40, _T("%s - TortoiseUDiff"), title);\r
 387         SetWindowTitle(std::wstring(pBuf));\r
 388         delete [] pBuf;\r
 389 }\r
 390 \r
 391 void CMainWindow::SetAStyle(int style, COLORREF fore, COLORREF back, int size, const char *face) \r
 392 {\r
 393         SendEditor(SCI_STYLESETFORE, style, fore);\r
 394         SendEditor(SCI_STYLESETBACK, style, back);\r
 395         if (size >= 1)\r
 396                 SendEditor(SCI_STYLESETSIZE, style, size);\r
 397         if (face) \r
 398                 SendEditor(SCI_STYLESETFONT, style, reinterpret_cast<LPARAM>(face));\r
 399 }\r
 400 \r
 401 bool CMainWindow::IsUTF8(LPVOID pBuffer, int cb)\r
 402 {\r
 403         if (cb < 2)\r
 404                 return true;\r
 405         UINT16 * pVal = (UINT16 *)pBuffer;\r
 406         UINT8 * pVal2 = (UINT8 *)(pVal+1);\r
 407         // scan the whole buffer for a 0x0000 sequence\r
 408         // if found, we assume a binary file\r
 409         for (int i=0; i<(cb-2); i=i+2)\r
 410         {\r
 411                 if (0x0000 == *pVal++)\r
 412                         return false;\r
 413         }\r
 414         pVal = (UINT16 *)pBuffer;\r
 415         if (*pVal == 0xFEFF)\r
 416                 return false;\r
 417         if (cb < 3)\r
 418                 return false;\r
 419         if (*pVal == 0xBBEF)\r
 420         {\r
 421                 if (*pVal2 == 0xBF)\r
 422                         return true;\r
 423         }\r
 424         // check for illegal UTF8 chars\r
 425         pVal2 = (UINT8 *)pBuffer;\r
 426         for (int i=0; i<cb; ++i)\r
 427         {\r
 428                 if ((*pVal2 == 0xC0)||(*pVal2 == 0xC1)||(*pVal2 >= 0xF5))\r
 429                         return false;\r
 430                 pVal2++;\r
 431         }\r
 432         pVal2 = (UINT8 *)pBuffer;\r
 433         bool bUTF8 = false;\r
 434         for (int i=0; i<(cb-3); ++i)\r
 435         {\r
 436                 if ((*pVal2 & 0xE0)==0xC0)\r
 437                 {\r
 438                         pVal2++;i++;\r
 439                         if ((*pVal2 & 0xC0)!=0x80)\r
 440                                 return false;\r
 441                         bUTF8 = true;\r
 442                 }\r
 443                 if ((*pVal2 & 0xF0)==0xE0)\r
 444                 {\r
 445                         pVal2++;i++;\r
 446                         if ((*pVal2 & 0xC0)!=0x80)\r
 447                                 return false;\r
 448                         pVal2++;i++;\r
 449                         if ((*pVal2 & 0xC0)!=0x80)\r
 450                                 return false;\r
 451                         bUTF8 = true;\r
 452                 }\r
 453                 if ((*pVal2 & 0xF8)==0xF0)\r
 454                 {\r
 455                         pVal2++;i++;\r
 456                         if ((*pVal2 & 0xC0)!=0x80)\r
 457                                 return false;\r
 458                         pVal2++;i++;\r
 459                         if ((*pVal2 & 0xC0)!=0x80)\r
 460                                 return false;\r
 461                         pVal2++;i++;\r
 462                         if ((*pVal2 & 0xC0)!=0x80)\r
 463                                 return false;\r
 464                         bUTF8 = true;\r
 465                 }\r
 466                 pVal2++;\r
 467         }\r
 468         if (bUTF8)\r
 469                 return true;\r
 470         return false;\r
 471 }\r