src/TortoiseUDiff/MainWindow.cpp

   1 // TortoiseGit - a Windows shell extension for easy version control
   2
   3 // Copyright (C) 2003-2012 - TortoiseSVN
   4
   5 // This program is free software; you can redistribute it and/or
   6 // modify it under the terms of the GNU General Public License
   7 // as published by the Free Software Foundation; either version 2
   8 // of the License, or (at your option) any later version.
   9
  10 // This program is distributed in the hope that it will be useful,
  11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 // GNU General Public License for more details.
  14
  15 // You should have received a copy of the GNU General Public License
  16 // along with this program; if not, write to the Free Software Foundation,
  17 // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18 //
  19 #include "stdafx.h"
  20 #include "MainWindow.h"
  21 #include "UnicodeUtils.h"
  22 #include "StringUtils.h"
  23 #include "TaskbarUUID.h"
  24 #include "CreateProcessHelper.h"
  25 #include "SysInfo.h"
  26
  27 const UINT TaskBarButtonCreated = RegisterWindowMessage(L"TaskbarButtonCreated");
  28
  29 CMainWindow::CMainWindow(HINSTANCE hInst, const WNDCLASSEX* wcx /* = NULL*/)
  30         : CWindow(hInst, wcx)
  31         , m_bShowFindBar(false)
  32         , m_directFunction(0)
  33         , m_directPointer(0)
  34         , m_hWndEdit(NULL)
  35         , m_bMatchCase(false)
  36 {
  37         SetWindowTitle(_T("TortoiseGitUDiff"));
  38 }
  39
  40 CMainWindow::~CMainWindow(void)
  41 {
  42 }
  43
  44 bool CMainWindow::RegisterAndCreateWindow()
  45 {
  46         WNDCLASSEX wcx;
  47
  48         // Fill in the window class structure with default parameters
  49         wcx.cbSize = sizeof(WNDCLASSEX);
  50         wcx.style = CS_HREDRAW | CS_VREDRAW;
  51         wcx.lpfnWndProc = CWindow::stWinMsgHandler;
  52         wcx.cbClsExtra = 0;
  53         wcx.cbWndExtra = 0;
  54         wcx.hInstance = hResource;
  55         wcx.hCursor = NULL;
  56         wcx.lpszClassName = ResString(hResource, IDS_APP_TITLE);
  57         wcx.hIcon = LoadIcon(hResource, MAKEINTRESOURCE(IDI_TORTOISEUDIFF));
  58         wcx.hbrBackground = (HBRUSH)(COLOR_3DFACE+1);
  59         wcx.lpszMenuName = MAKEINTRESOURCE(IDC_TORTOISEUDIFF);
  60         wcx.hIconSm = LoadIcon(wcx.hInstance, MAKEINTRESOURCE(IDI_TORTOISEUDIFF));
  61         if (RegisterWindow(&wcx))
  62         {
  63                 if (Create(WS_CAPTION | WS_MAXIMIZEBOX | WS_MINIMIZEBOX | WS_SIZEBOX | WS_SYSMENU | WS_CLIPCHILDREN, NULL))
  64                 {
  65                         m_FindBar.SetParent(*this);
  66                         m_FindBar.Create(hResource, IDD_FINDBAR, *this);
  67                         UpdateWindow(*this);
  68                         return true;
  69                 }
  70         }
  71         return false;
  72 }
  73
  74 LRESULT CALLBACK CMainWindow::WinMsgHandler(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
  75 {
  76         if (uMsg == TaskBarButtonCreated)
  77         {
  78                 SetUUIDOverlayIcon(hwnd);
  79         }
  80         switch (uMsg)
  81         {
  82         case WM_CREATE:
  83                 {
  84                         m_hwnd = hwnd;
  85                         Initialize();
  86                 }
  87                 break;
  88         case WM_COMMAND:
  89                 {
  90                         return DoCommand(LOWORD(wParam));
  91                 }
  92                 break;
  93         case WM_MOUSEWHEEL:
  94                 {
  95                         if (GET_KEYSTATE_WPARAM(wParam) == MK_SHIFT)
  96                         {
  97                                 // scroll sideways
  98                                 SendEditor(SCI_LINESCROLL, -GET_WHEEL_DELTA_WPARAM(wParam)/40, 0);
  99                         }
 100                         else
 101                                 return DefWindowProc(hwnd, uMsg, wParam, lParam);
 102                 }
 103                 break;
 104         case WM_SIZE:
 105                 {
 106                         RECT rect;
 107                         GetClientRect(*this, &rect);
 108                         if (m_bShowFindBar)
 109                         {
 110                                 ::SetWindowPos(m_hWndEdit, HWND_TOP,
 111                                         rect.left, rect.top,
 112                                         rect.right-rect.left, rect.bottom-rect.top-30,
 113                                         SWP_SHOWWINDOW);
 114                                 ::SetWindowPos(m_FindBar, HWND_TOP,
 115                                         rect.left, rect.bottom-30,
 116                                         rect.right-rect.left, 30,
 117                                         SWP_SHOWWINDOW);
 118                         }
 119                         else
 120                         {
 121                                 ::SetWindowPos(m_hWndEdit, HWND_TOP,
 122                                         rect.left, rect.top,
 123                                         rect.right-rect.left, rect.bottom-rect.top,
 124                                         SWP_SHOWWINDOW);
 125                                 ::ShowWindow(m_FindBar, SW_HIDE);
 126                         }
 127                 }
 128                 break;
 129         case WM_GETMINMAXINFO:
 130                 {
 131                         MINMAXINFO * mmi = (MINMAXINFO*)lParam;
 132                         mmi->ptMinTrackSize.x = 100;
 133                         mmi->ptMinTrackSize.y = 100;
 134                         return 0;
 135                 }
 136                 break;
 137         case WM_DESTROY:
 138                 PostQuitMessage(0);
 139                 break;
 140         case WM_CLOSE:
 141                 ::DestroyWindow(m_hwnd);
 142                 break;
 143         case WM_SETFOCUS:
 144                 SetFocus(m_hWndEdit);
 145                 break;
 146         case COMMITMONITOR_FINDMSGNEXT:
 147                 {
 148                         SendEditor(SCI_CHARRIGHT);
 149                         SendEditor(SCI_SEARCHANCHOR);
 150                         m_bMatchCase = !!wParam;
 151                         m_findtext = (LPCTSTR)lParam;
 152                         SendEditor(SCI_SEARCHNEXT, m_bMatchCase ? SCFIND_MATCHCASE : 0, (LPARAM)CUnicodeUtils::StdGetUTF8(m_findtext).c_str());
 153                         SendEditor(SCI_SCROLLCARET);
 154                 }
 155                 break;
 156         case COMMITMONITOR_FINDMSGPREV:
 157                 {
 158                         SendEditor(SCI_SEARCHANCHOR);
 159                         m_bMatchCase = !!wParam;
 160                         m_findtext = (LPCTSTR)lParam;
 161                         SendEditor(SCI_SEARCHPREV, m_bMatchCase ? SCFIND_MATCHCASE : 0, (LPARAM)CUnicodeUtils::StdGetUTF8(m_findtext).c_str());
 162                         SendEditor(SCI_SCROLLCARET);
 163                 }
 164                 break;
 165         case COMMITMONITOR_FINDEXIT:
 166                 {
 167                         RECT rect;
 168                         GetClientRect(*this, &rect);
 169                         m_bShowFindBar = false;
 170                         ::ShowWindow(m_FindBar, SW_HIDE);
 171                         ::SetWindowPos(m_hWndEdit, HWND_TOP,
 172                                 rect.left, rect.top,
 173                                 rect.right-rect.left, rect.bottom-rect.top,
 174                                 SWP_SHOWWINDOW);
 175                 }
 176                 break;
 177         case COMMITMONITOR_FINDRESET:
 178                 SendEditor(SCI_SETSELECTIONSTART, 0);
 179                 SendEditor(SCI_SETSELECTIONEND, 0);
 180                 SendEditor(SCI_SEARCHANCHOR);
 181                 break;
 182         default:
 183                 return DefWindowProc(hwnd, uMsg, wParam, lParam);
 184         }
 185
 186         return 0;
 187 };
 188
 189 LRESULT CMainWindow::DoCommand(int id)
 190 {
 191         switch (id)
 192         {
 193         case ID_FILE_OPEN:
 194                 loadOrSaveFile(true);
 195                 break;
 196         case ID_FILE_SAVEAS:
 197                 loadOrSaveFile(false);
 198                 break;
 199         case ID_FILE_SAVE:
 200                 loadOrSaveFile(false, m_filename);
 201                 break;
 202         case ID_FILE_EXIT:
 203                 ::PostQuitMessage(0);
 204                 return 0;
 205         case IDM_SHOWFINDBAR:
 206                 {
 207                         m_bShowFindBar = true;
 208                         ::ShowWindow(m_FindBar, SW_SHOW);
 209                         RECT rect;
 210                         GetClientRect(*this, &rect);
 211                         ::SetWindowPos(m_hWndEdit, HWND_TOP,
 212                                 rect.left, rect.top,
 213                                 rect.right-rect.left, rect.bottom-rect.top-30,
 214                                 SWP_SHOWWINDOW);
 215                         ::SetWindowPos(m_FindBar, HWND_TOP,
 216                                 rect.left, rect.bottom-30,
 217                                 rect.right-rect.left, 30,
 218                                 SWP_SHOWWINDOW);
 219                         ::SetFocus(m_FindBar);
 220                         SendEditor(SCI_SETSELECTIONSTART, 0);
 221                         SendEditor(SCI_SETSELECTIONEND, 0);
 222                         SendEditor(SCI_SEARCHANCHOR);
 223                 }
 224                 break;
 225         case IDM_FINDNEXT:
 226                 SendEditor(SCI_CHARRIGHT);
 227                 SendEditor(SCI_SEARCHANCHOR);
 228                 SendEditor(SCI_SEARCHNEXT, m_bMatchCase ? SCFIND_MATCHCASE : 0, (LPARAM)CUnicodeUtils::StdGetUTF8(m_findtext).c_str());
 229                 SendEditor(SCI_SCROLLCARET);
 230                 break;
 231         case IDM_FINDPREV:
 232                 SendEditor(SCI_SEARCHANCHOR);
 233                 SendEditor(SCI_SEARCHPREV, m_bMatchCase ? SCFIND_MATCHCASE : 0, (LPARAM)CUnicodeUtils::StdGetUTF8(m_findtext).c_str());
 234                 SendEditor(SCI_SCROLLCARET);
 235                 break;
 236         case IDM_FINDEXIT:
 237                 if (IsWindowVisible(m_FindBar))
 238                 {
 239                         RECT rect;
 240                         GetClientRect(*this, &rect);
 241                         m_bShowFindBar = false;
 242                         ::ShowWindow(m_FindBar, SW_HIDE);
 243                         ::SetWindowPos(m_hWndEdit, HWND_TOP,
 244                                 rect.left, rect.top,
 245                                 rect.right-rect.left, rect.bottom-rect.top,
 246                                 SWP_SHOWWINDOW);
 247                 }
 248                 else
 249                         PostQuitMessage(0);
 250                 break;
 251         case ID_FILE_SETTINGS:
 252                 {
 253                         tstring gitCmd = _T(" /command:settings /page:blame");
 254                         RunCommand(gitCmd);
 255                 }
 256                 break;
 257         default:
 258                 break;
 259         };
 260         return 1;
 261 }
 262
 263 std::wstring CMainWindow::GetAppDirectory()
 264 {
 265         std::wstring path;
 266         DWORD len = 0;
 267         DWORD bufferlen = MAX_PATH;             // MAX_PATH is not the limit here!
 268         do
 269         {
 270                 bufferlen += MAX_PATH;          // MAX_PATH is not the limit here!
 271                 TCHAR * pBuf = new TCHAR[bufferlen];
 272                 len = GetModuleFileName(NULL, pBuf, bufferlen);
 273                 path = pBuf;
 274                 delete [] pBuf;
 275         } while(len == bufferlen);
 276         path = path.substr(0, path.rfind('\\') + 1);
 277
 278         return path;
 279 }
 280
 281 void CMainWindow::RunCommand(const std::wstring& command)
 282 {
 283         tstring tortoiseProcPath = GetAppDirectory() + _T("TortoiseGitProc.exe");
 284         CCreateProcessHelper::CreateProcessDetached(tortoiseProcPath.c_str(), const_cast<TCHAR*>(command.c_str()));
 285 }
 286
 287 LRESULT CMainWindow::SendEditor(UINT Msg, WPARAM wParam, LPARAM lParam)
 288 {
 289         if (m_directFunction)
 290         {
 291                 return ((SciFnDirect) m_directFunction)(m_directPointer, Msg, wParam, lParam);
 292         }
 293         return ::SendMessage(m_hWndEdit, Msg, wParam, lParam);
 294 }
 295
 296 bool CMainWindow::Initialize()
 297 {
 298         m_hWndEdit = ::CreateWindow(
 299                 _T("Scintilla"),
 300                 _T("Source"),
 301                 WS_CHILD | WS_VSCROLL | WS_HSCROLL | WS_CLIPCHILDREN,
 302                 CW_USEDEFAULT, CW_USEDEFAULT,
 303                 CW_USEDEFAULT, CW_USEDEFAULT,
 304                 *this,
 305                 0,
 306                 hResource,
 307                 0);
 308         if (m_hWndEdit == NULL)
 309                 return false;
 310
 311         RECT rect;
 312         GetClientRect(*this, &rect);
 313         ::SetWindowPos(m_hWndEdit, HWND_TOP,
 314                 rect.left, rect.top,
 315                 rect.right-rect.left, rect.bottom-rect.top,
 316                 SWP_SHOWWINDOW);
 317
 318         m_directFunction = SendMessage(m_hWndEdit, SCI_GETDIRECTFUNCTION, 0, 0);
 319         m_directPointer = SendMessage(m_hWndEdit, SCI_GETDIRECTPOINTER, 0, 0);
 320
 321         // Set up the global default style. These attributes are used wherever no explicit choices are made.
 322         SetAStyle(STYLE_DEFAULT, ::GetSysColor(COLOR_WINDOWTEXT), ::GetSysColor(COLOR_WINDOW),
 323                 // Reusing TortoiseBlame's setting which already have an user friendly
 324                 // pane in TortoiseSVN's Settings dialog, while there is no such
 325                 // pane for TortoiseUDiff.
 326                 CRegStdDWORD(_T("Software\\TortoiseGit\\BlameFontSize"), 10),
 327                 CUnicodeUtils::StdGetUTF8(CRegStdString(_T("Software\\TortoiseGit\\BlameFontName"), _T("Courier New"))).c_str());
 328         SendEditor(SCI_SETTABWIDTH, 4);
 329         SendEditor(SCI_SETREADONLY, TRUE);
 330         LRESULT pix = SendEditor(SCI_TEXTWIDTH, STYLE_LINENUMBER, (LPARAM)"_99999");
 331         SendEditor(SCI_SETMARGINWIDTHN, 0, pix);
 332         SendEditor(SCI_SETMARGINWIDTHN, 1);
 333         SendEditor(SCI_SETMARGINWIDTHN, 2);
 334         //Set the default windows colors for edit controls
 335         SendEditor(SCI_STYLESETFORE, STYLE_DEFAULT, ::GetSysColor(COLOR_WINDOWTEXT));
 336         SendEditor(SCI_STYLESETBACK, STYLE_DEFAULT, ::GetSysColor(COLOR_WINDOW));
 337         SendEditor(SCI_SETSELFORE, TRUE, ::GetSysColor(COLOR_HIGHLIGHTTEXT));
 338         SendEditor(SCI_SETSELBACK, TRUE, ::GetSysColor(COLOR_HIGHLIGHT));
 339         SendEditor(SCI_SETCARETFORE, ::GetSysColor(COLOR_WINDOWTEXT));
 340         CRegStdDWORD used2d(L"Software\\TortoiseGit\\ScintillaDirect2D", FALSE);
 341         if (SysInfo::Instance().IsWin7OrLater() && DWORD(used2d))
 342         {
 343                 SendEditor(SCI_SETTECHNOLOGY, SC_TECHNOLOGY_DIRECTWRITE);
 344                 SendEditor(SCI_SETBUFFEREDDRAW, 0);
 345         }
 346         SendEditor(SCI_SETFONTQUALITY, SC_EFF_QUALITY_LCD_OPTIMIZED);
 347
 348         return true;
 349 }
 350
 351 bool CMainWindow::LoadFile(HANDLE hFile)
 352 {
 353         InitEditor();
 354         char data[4096];
 355         DWORD dwRead = 0;
 356
 357         BOOL bRet = ReadFile(hFile, data, sizeof(data), &dwRead, NULL);
 358         bool bUTF8 = IsUTF8(data, dwRead);
 359         while ((dwRead > 0) && (bRet))
 360         {
 361                 SendEditor(SCI_ADDTEXT, dwRead,
 362                         reinterpret_cast<LPARAM>(static_cast<char *>(data)));
 363                 bRet = ReadFile(hFile, data, sizeof(data), &dwRead, NULL);
 364         }
 365         SetupWindow(bUTF8);
 366         return true;
 367 }
 368
 369 bool CMainWindow::LoadFile(LPCTSTR filename)
 370 {
 371         InitEditor();
 372         FILE *fp = NULL;
 373         _tfopen_s(&fp, filename, _T("rb"));
 374         if (!fp)
 375                 return false;
 376
 377         //SetTitle();
 378         char data[4096];
 379         size_t lenFile = fread(data, 1, sizeof(data), fp);
 380         bool bUTF8 = IsUTF8(data, lenFile);
 381         while (lenFile > 0)
 382         {
 383                 SendEditor(SCI_ADDTEXT, lenFile,
 384                         reinterpret_cast<LPARAM>(static_cast<char *>(data)));
 385                 lenFile = fread(data, 1, sizeof(data), fp);
 386         }
 387         fclose(fp);
 388         SetupWindow(bUTF8);
 389         m_filename = filename;
 390         return true;
 391 }
 392
 393 void CMainWindow::InitEditor()
 394 {
 395         SendEditor(SCI_SETREADONLY, FALSE);
 396         SendEditor(SCI_CLEARALL);
 397         SendEditor(EM_EMPTYUNDOBUFFER);
 398         SendEditor(SCI_SETSAVEPOINT);
 399         SendEditor(SCI_CANCEL);
 400         SendEditor(SCI_SETUNDOCOLLECTION, 0);
 401 }
 402
 403 void CMainWindow::SetupWindow(bool bUTF8)
 404 {
 405         SendEditor(SCI_SETCODEPAGE, bUTF8 ? SC_CP_UTF8 : GetACP());
 406
 407         SendEditor(SCI_SETUNDOCOLLECTION, 1);
 408         ::SetFocus(m_hWndEdit);
 409         SendEditor(EM_EMPTYUNDOBUFFER);
 410         SendEditor(SCI_SETSAVEPOINT);
 411         SendEditor(SCI_GOTOPOS, 0);
 412
 413         SendEditor(SCI_CLEARDOCUMENTSTYLE, 0, 0);
 414         SendEditor(SCI_SETSTYLEBITS, 5, 0);
 415
 416         //SetAStyle(SCE_DIFF_DEFAULT, RGB(0, 0, 0));
 417         SetAStyle(SCE_DIFF_COMMAND, RGB(0x0A, 0x24, 0x36));
 418         SetAStyle(SCE_DIFF_POSITION, RGB(0xFF, 0, 0));
 419         SetAStyle(SCE_DIFF_HEADER, RGB(0x80, 0, 0), RGB(0xFF, 0xFF, 0x80));
 420         SetAStyle(SCE_DIFF_COMMENT, RGB(0, 0x80, 0));
 421         SendEditor(SCI_STYLESETBOLD, SCE_DIFF_COMMENT, TRUE);
 422         SetAStyle(SCE_DIFF_DELETED, ::GetSysColor(COLOR_WINDOWTEXT), RGB(0xFF, 0x80, 0x80));
 423         SetAStyle(SCE_DIFF_ADDED, ::GetSysColor(COLOR_WINDOWTEXT), RGB(0x80, 0xFF, 0x80));
 424
 425         SendEditor(SCI_SETLEXER, SCLEX_DIFF);
 426         SendEditor(SCI_SETKEYWORDS, 0, (LPARAM)"revision");
 427         SendEditor(SCI_COLOURISE, 0, -1);
 428         ::ShowWindow(m_hWndEdit, SW_SHOW);
 429 }
 430
 431 bool CMainWindow::SaveFile(LPCTSTR filename)
 432 {
 433         FILE *fp = NULL;
 434         _tfopen_s(&fp, filename, _T("w+b"));
 435         if (!fp)
 436                 return false;
 437
 438         int len = SendEditor(SCI_GETTEXT, 0, 0);
 439         char * data = new char[len+1];
 440         SendEditor(SCI_GETTEXT, len, (LPARAM)data);
 441         fwrite(data, sizeof(char), len-1, fp);
 442         fclose(fp);
 443
 444         SendEditor(SCI_SETSAVEPOINT);
 445         ::ShowWindow(m_hWndEdit, SW_SHOW);
 446         return true;
 447 }
 448
 449 void CMainWindow::SetTitle(LPCTSTR title)
 450 {
 451         size_t len = _tcslen(title);
 452         TCHAR * pBuf = new TCHAR[len+40];
 453         _stprintf_s(pBuf, len+40, _T("%s - TortoiseGitUDiff"), title);
 454         SetWindowTitle(std::wstring(pBuf));
 455         delete [] pBuf;
 456 }
 457
 458 void CMainWindow::SetAStyle(int style, COLORREF fore, COLORREF back, int size, const char *face)
 459 {
 460         SendEditor(SCI_STYLESETFORE, style, fore);
 461         SendEditor(SCI_STYLESETBACK, style, back);
 462         if (size >= 1)
 463                 SendEditor(SCI_STYLESETSIZE, style, size);
 464         if (face)
 465                 SendEditor(SCI_STYLESETFONT, style, reinterpret_cast<LPARAM>(face));
 466 }
 467
 468 bool CMainWindow::IsUTF8(LPVOID pBuffer, size_t cb)
 469 {
 470         if (cb < 2)
 471                 return true;
 472         UINT16 * pVal16 = (UINT16 *)pBuffer;
 473         UINT8 * pVal8 = (UINT8 *)(pVal16+1);
 474         // scan the whole buffer for a 0x0000 sequence
 475         // if found, we assume a binary file
 476         for (size_t i=0; i<(cb-2); i=i+2)
 477         {
 478                 if (0x0000 == *pVal16++)
 479                         return false;
 480         }
 481         pVal16 = (UINT16 *)pBuffer;
 482         if (*pVal16 == 0xFEFF)
 483                 return false;
 484         if (cb < 3)
 485                 return false;
 486         if (*pVal16 == 0xBBEF)
 487         {
 488                 if (*pVal8 == 0xBF)
 489                         return true;
 490         }
 491         // check for illegal UTF8 chars
 492         pVal8 = (UINT8 *)pBuffer;
 493         for (size_t i=0; i<cb; ++i)
 494         {
 495                 if ((*pVal8 == 0xC0)||(*pVal8 == 0xC1)||(*pVal8 >= 0xF5))
 496                         return false;
 497                 pVal8++;
 498         }
 499         pVal8 = (UINT8 *)pBuffer;
 500         bool bUTF8 = false;
 501         for (size_t i=0; i<(cb-3); ++i)
 502         {
 503                 if ((*pVal8 & 0xE0)==0xC0)
 504                 {
 505                         pVal8++;i++;
 506                         if ((*pVal8 & 0xC0)!=0x80)
 507                                 return false;
 508                         bUTF8 = true;
 509                 }
 510                 if ((*pVal8 & 0xF0)==0xE0)
 511                 {
 512                         pVal8++;i++;
 513                         if ((*pVal8 & 0xC0)!=0x80)
 514                                 return false;
 515                         pVal8++;i++;
 516                         if ((*pVal8 & 0xC0)!=0x80)
 517                                 return false;
 518                         bUTF8 = true;
 519                 }
 520                 if ((*pVal8 & 0xF8)==0xF0)
 521                 {
 522                         pVal8++;i++;
 523                         if ((*pVal8 & 0xC0)!=0x80)
 524                                 return false;
 525                         pVal8++;i++;
 526                         if ((*pVal8 & 0xC0)!=0x80)
 527                                 return false;
 528                         pVal8++;i++;
 529                         if ((*pVal8 & 0xC0)!=0x80)
 530                                 return false;
 531                         bUTF8 = true;
 532                 }
 533                 pVal8++;
 534         }
 535         if (bUTF8)
 536                 return true;
 537         return false;
 538 }
 539
 540 void CMainWindow::loadOrSaveFile(bool doLoad, const wstring& filename /* = L"" */)
 541 {
 542         OPENFILENAME ofn = {0};                         // common dialog box structure
 543         TCHAR szFile[MAX_PATH] = {0};           // buffer for file name
 544         // Initialize OPENFILENAME
 545         ofn.lStructSize = sizeof(OPENFILENAME);
 546         ofn.hwndOwner = *this;
 547         ofn.lpstrFile = szFile;
 548         ofn.nMaxFile = sizeof(szFile)/sizeof(TCHAR);
 549         TCHAR filter[1024];
 550         LoadString(hResource, IDS_PATCHFILEFILTER, filter, sizeof(filter)/sizeof(TCHAR));
 551         CStringUtils::PipesToNulls(filter);
 552         ofn.lpstrFilter = filter;
 553         ofn.nFilterIndex = 1;
 554         ofn.lpstrFileTitle = NULL;
 555         ofn.nMaxFileTitle = 0;
 556         ofn.lpstrInitialDir = NULL;
 557         TCHAR fileTitle[1024];
 558         LoadString(hResource, doLoad ? IDS_OPENPATCH : IDS_SAVEPATCH, fileTitle, sizeof(fileTitle)/sizeof(TCHAR));
 559         ofn.lpstrTitle = fileTitle;
 560         ofn.Flags = OFN_ENABLESIZING | OFN_EXPLORER;
 561         if(doLoad)
 562                 ofn.Flags |= OFN_PATHMUSTEXIST | OFN_FILEMUSTEXIST;
 563         else
 564                 ofn.Flags |= OFN_OVERWRITEPROMPT;
 565         // Display the Open dialog box.
 566         if( doLoad )
 567         {
 568                 if (GetOpenFileName(&ofn)==TRUE)
 569                 {
 570                         LoadFile(ofn.lpstrFile);
 571                 }
 572         }
 573         else
 574         {
 575                 if (filename.empty())
 576                 {
 577                         if (GetSaveFileName(&ofn)==TRUE)
 578                         {
 579                                 SaveFile(ofn.lpstrFile);
 580                         }
 581                 }
 582                 else
 583                         SaveFile(filename.c_str());
 584         }
 585 }