src/TortoiseUDiff/MainWindow.cpp

   1 // TortoiseSVN - a Windows shell extension for easy version control\r
   2 \r
   3 // Copyright (C) 2003-2009 - 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                         CRegStdDWORD w = CRegStdDWORD(_T("Software\\TortoiseGit\\UDiffViewerWidth"), (DWORD)CW_USEDEFAULT);\r
 130                         CRegStdDWORD h = CRegStdDWORD(_T("Software\\TortoiseGit\\UDiffViewerHeight"), (DWORD)CW_USEDEFAULT);\r
 131                         CRegStdDWORD p = CRegStdDWORD(_T("Software\\TortoiseGit\\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_OPEN:\r
 192                 {\r
 193                         OPENFILENAME ofn = {0};                         // common dialog box structure\r
 194                         TCHAR szFile[MAX_PATH] = {0};           // buffer for file name\r
 195                         // Initialize OPENFILENAME\r
 196                         ofn.lStructSize = sizeof(OPENFILENAME);\r
 197                         ofn.hwndOwner = *this;\r
 198                         ofn.lpstrFile = szFile;\r
 199                         ofn.nMaxFile = sizeof(szFile)/sizeof(TCHAR);\r
 200                         TCHAR filter[1024];\r
 201                         LoadString(hResource, IDS_PATCHFILEFILTER, filter, sizeof(filter)/sizeof(TCHAR));\r
 202                         TCHAR * pszFilters = filter;\r
 203                         // Replace '|' delimiters with '\0's\r
 204                         TCHAR *ptr = pszFilters + _tcslen(pszFilters);  //set ptr at the NULL\r
 205                         while (ptr != pszFilters)\r
 206                         {\r
 207                                 if (*ptr == '|')\r
 208                                         *ptr = '\0';\r
 209                                 ptr--;\r
 210                         }\r
 211                         ofn.lpstrFilter = pszFilters;\r
 212                         ofn.nFilterIndex = 1;\r
 213                         ofn.lpstrFileTitle = NULL;\r
 214                         ofn.nMaxFileTitle = 0;\r
 215                         ofn.lpstrInitialDir = NULL;\r
 216                         TCHAR opentitle[1024];\r
 217                         LoadString(hResource, IDS_OPENPATCH, opentitle, sizeof(opentitle)/sizeof(TCHAR));\r
 218                         ofn.lpstrTitle = opentitle;\r
 219                         ofn.Flags = OFN_PATHMUSTEXIST | OFN_FILEMUSTEXIST | OFN_ENABLESIZING | OFN_EXPLORER;\r
 220                         // Display the Open dialog box. \r
 221                         if (GetOpenFileName(&ofn)==TRUE)\r
 222                         {\r
 223                                 LoadFile(ofn.lpstrFile);\r
 224                         }\r
 225                 }\r
 226                 break;\r
 227         case ID_FILE_SAVEAS:\r
 228                 {\r
 229                         OPENFILENAME ofn = {0};                         // common dialog box structure\r
 230                         TCHAR szFile[MAX_PATH] = {0};           // buffer for file name\r
 231                         // Initialize OPENFILENAME\r
 232                         ofn.lStructSize = sizeof(OPENFILENAME);\r
 233                         ofn.hwndOwner = *this;\r
 234                         ofn.lpstrFile = szFile;\r
 235                         ofn.nMaxFile = sizeof(szFile)/sizeof(TCHAR);\r
 236                         TCHAR filter[1024];\r
 237                         LoadString(hResource, IDS_PATCHFILEFILTER, filter, sizeof(filter)/sizeof(TCHAR));\r
 238                         TCHAR * pszFilters = filter;\r
 239                         // Replace '|' delimiters with '\0's\r
 240                         TCHAR *ptr = pszFilters + _tcslen(pszFilters);  //set ptr at the NULL\r
 241                         while (ptr != pszFilters)\r
 242                         {\r
 243                                 if (*ptr == '|')\r
 244                                         *ptr = '\0';\r
 245                                 ptr--;\r
 246                         }\r
 247                         ofn.lpstrFilter = pszFilters;\r
 248                         ofn.nFilterIndex = 1;\r
 249                         ofn.lpstrFileTitle = NULL;\r
 250                         ofn.nMaxFileTitle = 0;\r
 251                         ofn.lpstrInitialDir = NULL;\r
 252                         TCHAR savetitle[1024];\r
 253                         LoadString(hResource, IDS_SAVEPATCH, savetitle, sizeof(savetitle)/sizeof(TCHAR));\r
 254                         ofn.lpstrTitle = savetitle;\r
 255                         ofn.Flags = OFN_OVERWRITEPROMPT | OFN_ENABLESIZING | OFN_EXPLORER;\r
 256                         // Display the Open dialog box. \r
 257                         if (GetSaveFileName(&ofn)==TRUE)\r
 258                         {\r
 259                                 SaveFile(ofn.lpstrFile);\r
 260                         }\r
 261                 }\r
 262                 break;\r
 263         case ID_FILE_EXIT:\r
 264                 ::PostQuitMessage(0);\r
 265                 return 0;\r
 266         case IDM_SHOWFINDBAR:\r
 267                 {\r
 268                         m_bShowFindBar = true;\r
 269                         ::ShowWindow(m_FindBar, SW_SHOW);\r
 270                         RECT rect;\r
 271                         GetClientRect(*this, &rect);\r
 272                         ::SetWindowPos(m_hWndEdit, HWND_TOP, \r
 273                                 rect.left, rect.top,\r
 274                                 rect.right-rect.left, rect.bottom-rect.top-30,\r
 275                                 SWP_SHOWWINDOW);\r
 276                         ::SetWindowPos(m_FindBar, HWND_TOP,\r
 277                                 rect.left, rect.bottom-30,\r
 278                                 rect.right-rect.left, 30,\r
 279                                 SWP_SHOWWINDOW);\r
 280                         ::SetFocus(m_FindBar);\r
 281                         SendEditor(SCI_SETSELECTIONSTART, 0);\r
 282                         SendEditor(SCI_SETSELECTIONEND, 0);\r
 283                         SendEditor(SCI_SEARCHANCHOR);\r
 284                 }\r
 285                 break;\r
 286         case IDM_FINDNEXT:\r
 287                 SendEditor(SCI_CHARRIGHT);\r
 288                 SendEditor(SCI_SEARCHANCHOR);\r
 289                 SendEditor(SCI_SEARCHNEXT, m_bMatchCase ? SCFIND_MATCHCASE : 0, (LPARAM)CUnicodeUtils::StdGetUTF8(m_findtext).c_str());\r
 290                 SendEditor(SCI_SCROLLCARET);\r
 291                 break;\r
 292         case IDM_FINDPREV:\r
 293                 SendEditor(SCI_SEARCHANCHOR);\r
 294                 SendEditor(SCI_SEARCHPREV, m_bMatchCase ? SCFIND_MATCHCASE : 0, (LPARAM)CUnicodeUtils::StdGetUTF8(m_findtext).c_str());\r
 295                 SendEditor(SCI_SCROLLCARET);\r
 296                 break;\r
 297         case IDM_FINDEXIT:\r
 298                 {\r
 299                         if (IsWindowVisible(m_FindBar))\r
 300                         {\r
 301                                 RECT rect;\r
 302                                 GetClientRect(*this, &rect);\r
 303                                 m_bShowFindBar = false;\r
 304                                 ::ShowWindow(m_FindBar, SW_HIDE);\r
 305                                 ::SetWindowPos(m_hWndEdit, HWND_TOP, \r
 306                                         rect.left, rect.top,\r
 307                                         rect.right-rect.left, rect.bottom-rect.top,\r
 308                                         SWP_SHOWWINDOW);\r
 309                         }\r
 310                         else\r
 311                                 PostQuitMessage(0);\r
 312                 }\r
 313                 break;\r
 314         default:\r
 315                 break;\r
 316         };\r
 317         return 1;\r
 318 }\r
 319 \r
 320 \r
 321 LRESULT CMainWindow::SendEditor(UINT Msg, WPARAM wParam, LPARAM lParam)\r
 322 {\r
 323         if (m_directFunction)\r
 324         {\r
 325                 return ((SciFnDirect) m_directFunction)(m_directPointer, Msg, wParam, lParam);\r
 326         }\r
 327         return ::SendMessage(m_hWndEdit, Msg, wParam, lParam);  \r
 328 }\r
 329 \r
 330 bool CMainWindow::Initialize()\r
 331 {\r
 332         CRegStdDWORD pos(_T("Software\\TortoiseGit\\UDiffViewerPos"), 0);\r
 333         CRegStdDWORD width(_T("Software\\TortoiseGit\\UDiffViewerWidth"), (DWORD)640);\r
 334         CRegStdDWORD height(_T("Software\\TortoiseGit\\UDiffViewerHeight"), (DWORD)480);\r
 335         if (DWORD(pos) && DWORD(width) && DWORD(height))\r
 336         {\r
 337                 RECT rc;\r
 338                 rc.left = LOWORD(DWORD(pos));\r
 339                 rc.top = HIWORD(DWORD(pos));\r
 340                 rc.right = rc.left + DWORD(width);\r
 341                 rc.bottom = rc.top + DWORD(height);\r
 342                 HMONITOR hMon = MonitorFromRect(&rc, MONITOR_DEFAULTTONULL);\r
 343                 if (hMon)\r
 344                 {\r
 345                         // only restore the window position if the monitor is valid\r
 346                         MoveWindow(*this, LOWORD(DWORD(pos)), HIWORD(DWORD(pos)),\r
 347                                 DWORD(width), DWORD(height), FALSE);\r
 348                 }\r
 349         }\r
 350 \r
 351         m_hWndEdit = ::CreateWindow(\r
 352                 _T("Scintilla"),\r
 353                 _T("Source"),\r
 354                 WS_CHILD | WS_VSCROLL | WS_HSCROLL | WS_CLIPCHILDREN,\r
 355                 CW_USEDEFAULT, CW_USEDEFAULT,\r
 356                 CW_USEDEFAULT, CW_USEDEFAULT,\r
 357                 *this,\r
 358                 0,\r
 359                 hResource,\r
 360                 0);\r
 361         if (m_hWndEdit == NULL)\r
 362                 return false;\r
 363 \r
 364         RECT rect;\r
 365         GetClientRect(*this, &rect);\r
 366         ::SetWindowPos(m_hWndEdit, HWND_TOP, \r
 367                 rect.left, rect.top,\r
 368                 rect.right-rect.left, rect.bottom-rect.top,\r
 369                 SWP_SHOWWINDOW);\r
 370 \r
 371         m_directFunction = SendMessage(m_hWndEdit, SCI_GETDIRECTFUNCTION, 0, 0);\r
 372         m_directPointer = SendMessage(m_hWndEdit, SCI_GETDIRECTPOINTER, 0, 0);\r
 373 \r
 374         // Set up the global default style. These attributes are used wherever no explicit choices are made.\r
 375         SetAStyle(STYLE_DEFAULT, ::GetSysColor(COLOR_WINDOWTEXT), ::GetSysColor(COLOR_WINDOW),\r
 376                 // Reusing TortoiseBlame's setting which already have an user friendly\r
 377                 // pane in TortoiseSVN's Settings dialog, while there is no such\r
 378                 // pane for TortoiseUDiff.\r
 379                 CRegStdDWORD(_T("Software\\TortoiseGit\\BlameFontSize"), 10),\r
 380                 WideToMultibyte(CRegStdString(_T("Software\\TortoiseGit\\BlameFontName"), _T("Courier New"))).c_str());\r
 381         SendEditor(SCI_SETTABWIDTH, 4);\r
 382         SendEditor(SCI_SETREADONLY, TRUE);\r
 383         LRESULT pix = SendEditor(SCI_TEXTWIDTH, STYLE_LINENUMBER, (LPARAM)"_99999");\r
 384         SendEditor(SCI_SETMARGINWIDTHN, 0, pix);\r
 385         SendEditor(SCI_SETMARGINWIDTHN, 1);\r
 386         SendEditor(SCI_SETMARGINWIDTHN, 2);\r
 387         //Set the default windows colors for edit controls\r
 388         SendEditor(SCI_STYLESETFORE, STYLE_DEFAULT, ::GetSysColor(COLOR_WINDOWTEXT));\r
 389         SendEditor(SCI_STYLESETBACK, STYLE_DEFAULT, ::GetSysColor(COLOR_WINDOW));\r
 390         SendEditor(SCI_SETSELFORE, TRUE, ::GetSysColor(COLOR_HIGHLIGHTTEXT));\r
 391         SendEditor(SCI_SETSELBACK, TRUE, ::GetSysColor(COLOR_HIGHLIGHT));\r
 392         SendEditor(SCI_SETCARETFORE, ::GetSysColor(COLOR_WINDOWTEXT));\r
 393 \r
 394         return true;\r
 395 }\r
 396 \r
 397 bool CMainWindow::LoadFile(LPCTSTR filename)\r
 398 {\r
 399         SendEditor(SCI_SETREADONLY, FALSE);\r
 400         SendEditor(SCI_CLEARALL);\r
 401         SendEditor(EM_EMPTYUNDOBUFFER);\r
 402         SendEditor(SCI_SETSAVEPOINT);\r
 403         SendEditor(SCI_CANCEL);\r
 404         SendEditor(SCI_SETUNDOCOLLECTION, 0);\r
 405 \r
 406         FILE *fp = NULL;\r
 407         _tfopen_s(&fp, filename, _T("rb"));\r
 408         if (fp) \r
 409         {\r
 410                 //SetTitle();\r
 411                 char data[4096];\r
 412                 size_t lenFile = fread(data, 1, sizeof(data), fp);\r
 413                 bool bUTF8 = IsUTF8(data, lenFile);\r
 414                 while (lenFile > 0) \r
 415                 {\r
 416                         SendEditor(SCI_ADDTEXT, lenFile,\r
 417                                 reinterpret_cast<LPARAM>(static_cast<char *>(data)));\r
 418                         lenFile = fread(data, 1, sizeof(data), fp);\r
 419                 }\r
 420                 fclose(fp);\r
 421                 SendEditor(SCI_SETCODEPAGE, bUTF8 ? SC_CP_UTF8 : GetACP());\r
 422         }\r
 423         else \r
 424         {\r
 425                 return false;\r
 426         }\r
 427 \r
 428         SendEditor(SCI_SETUNDOCOLLECTION, 1);\r
 429         ::SetFocus(m_hWndEdit);\r
 430         SendEditor(EM_EMPTYUNDOBUFFER);\r
 431         SendEditor(SCI_SETSAVEPOINT);\r
 432         SendEditor(SCI_GOTOPOS, 0);\r
 433 \r
 434         SendEditor(SCI_CLEARDOCUMENTSTYLE, 0, 0);\r
 435         SendEditor(SCI_SETSTYLEBITS, 5, 0);\r
 436 \r
 437         //SetAStyle(SCE_DIFF_DEFAULT, RGB(0, 0, 0));\r
 438         SetAStyle(SCE_DIFF_COMMAND, RGB(0x0A, 0x24, 0x36));\r
 439         SetAStyle(SCE_DIFF_POSITION, RGB(0xFF, 0, 0));\r
 440         SetAStyle(SCE_DIFF_HEADER, RGB(0x80, 0, 0), RGB(0xFF, 0xFF, 0x80));\r
 441         SetAStyle(SCE_DIFF_COMMENT, RGB(0, 0x80, 0));\r
 442         SendEditor(SCI_STYLESETBOLD, SCE_DIFF_COMMENT, TRUE);\r
 443         SetAStyle(SCE_DIFF_DELETED, ::GetSysColor(COLOR_WINDOWTEXT), RGB(0xFF, 0x80, 0x80));\r
 444         SetAStyle(SCE_DIFF_ADDED, ::GetSysColor(COLOR_WINDOWTEXT), RGB(0x80, 0xFF, 0x80));\r
 445 \r
 446         SendEditor(SCI_SETLEXER, SCLEX_DIFF);\r
 447         SendEditor(SCI_SETKEYWORDS, 0, (LPARAM)"revision");\r
 448         SendEditor(SCI_COLOURISE, 0, -1);\r
 449         ::ShowWindow(m_hWndEdit, SW_SHOW);\r
 450         return true;\r
 451 }\r
 452 \r
 453 bool CMainWindow::SaveFile(LPCTSTR filename)\r
 454 {\r
 455         FILE *fp = NULL;\r
 456         _tfopen_s(&fp, filename, _T("w+b"));\r
 457         if (fp) \r
 458         {\r
 459                 int len = SendEditor(SCI_GETTEXT, 0, 0);\r
 460                 char * data = new char[len+1];\r
 461                 SendEditor(SCI_GETTEXT, len, (LPARAM)data);\r
 462                 fwrite(data, sizeof(char), len-1, fp);\r
 463                 fclose(fp);\r
 464         }\r
 465         else \r
 466         {\r
 467                 return false;\r
 468         }\r
 469 \r
 470         SendEditor(SCI_SETSAVEPOINT);\r
 471         ::ShowWindow(m_hWndEdit, SW_SHOW);\r
 472         return true;\r
 473 }\r
 474 \r
 475 void CMainWindow::SetTitle(LPCTSTR title)\r
 476 {\r
 477         size_t len = _tcslen(title);\r
 478         TCHAR * pBuf = new TCHAR[len+40];\r
 479         _stprintf_s(pBuf, len+40, _T("%s - TortoiseUDiff"), title);\r
 480         SetWindowTitle(std::wstring(pBuf));\r
 481         delete [] pBuf;\r
 482 }\r
 483 \r
 484 void CMainWindow::SetAStyle(int style, COLORREF fore, COLORREF back, int size, const char *face) \r
 485 {\r
 486         SendEditor(SCI_STYLESETFORE, style, fore);\r
 487         SendEditor(SCI_STYLESETBACK, style, back);\r
 488         if (size >= 1)\r
 489                 SendEditor(SCI_STYLESETSIZE, style, size);\r
 490         if (face) \r
 491                 SendEditor(SCI_STYLESETFONT, style, reinterpret_cast<LPARAM>(face));\r
 492 }\r
 493 \r
 494 bool CMainWindow::IsUTF8(LPVOID pBuffer, size_t cb)\r
 495 {\r
 496         if (cb < 2)\r
 497                 return true;\r
 498         UINT16 * pVal = (UINT16 *)pBuffer;\r
 499         UINT8 * pVal2 = (UINT8 *)(pVal+1);\r
 500         // scan the whole buffer for a 0x0000 sequence\r
 501         // if found, we assume a binary file\r
 502         for (size_t i=0; i<(cb-2); i=i+2)\r
 503         {\r
 504                 if (0x0000 == *pVal++)\r
 505                         return false;\r
 506         }\r
 507         pVal = (UINT16 *)pBuffer;\r
 508         if (*pVal == 0xFEFF)\r
 509                 return false;\r
 510         if (cb < 3)\r
 511                 return false;\r
 512         if (*pVal == 0xBBEF)\r
 513         {\r
 514                 if (*pVal2 == 0xBF)\r
 515                         return true;\r
 516         }\r
 517         // check for illegal UTF8 chars\r
 518         pVal2 = (UINT8 *)pBuffer;\r
 519         for (size_t i=0; i<cb; ++i)\r
 520         {\r
 521                 if ((*pVal2 == 0xC0)||(*pVal2 == 0xC1)||(*pVal2 >= 0xF5))\r
 522                         return false;\r
 523                 pVal2++;\r
 524         }\r
 525         pVal2 = (UINT8 *)pBuffer;\r
 526         bool bUTF8 = false;\r
 527         for (size_t i=0; i<(cb-3); ++i)\r
 528         {\r
 529                 if ((*pVal2 & 0xE0)==0xC0)\r
 530                 {\r
 531                         pVal2++;i++;\r
 532                         if ((*pVal2 & 0xC0)!=0x80)\r
 533                                 return false;\r
 534                         bUTF8 = true;\r
 535                 }\r
 536                 if ((*pVal2 & 0xF0)==0xE0)\r
 537                 {\r
 538                         pVal2++;i++;\r
 539                         if ((*pVal2 & 0xC0)!=0x80)\r
 540                                 return false;\r
 541                         pVal2++;i++;\r
 542                         if ((*pVal2 & 0xC0)!=0x80)\r
 543                                 return false;\r
 544                         bUTF8 = true;\r
 545                 }\r
 546                 if ((*pVal2 & 0xF8)==0xF0)\r
 547                 {\r
 548                         pVal2++;i++;\r
 549                         if ((*pVal2 & 0xC0)!=0x80)\r
 550                                 return false;\r
 551                         pVal2++;i++;\r
 552                         if ((*pVal2 & 0xC0)!=0x80)\r
 553                                 return false;\r
 554                         pVal2++;i++;\r
 555                         if ((*pVal2 & 0xC0)!=0x80)\r
 556                                 return false;\r
 557                         bUTF8 = true;\r
 558                 }\r
 559                 pVal2++;\r
 560         }\r
 561         if (bUTF8)\r
 562                 return true;\r
 563         return false;\r
 564 }\r