# win32.cpp

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    00001 /* $Id: win32.cpp 18424 2009-12-07 17:13:28Z rubidium $ */
    00002
    00003 /*
    00004  * This file is part of OpenTTD.
    00005  * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
    00006  * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
    00007  * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
    00008  */
    00009
    00012 #include "../../stdafx.h"
    00013 #include "../../debug.h"
    00014 #include "../../gfx_func.h"
    00015 #include "../../textbuf_gui.h"
    00016 #include "../../fileio_func.h"
    00017 #include "../../fios.h"
    00018 #include <windows.h>
    00019 #include <fcntl.h>
    00020 #include <shlobj.h> /* SHGetFolderPath */
    00021 #include "win32.h"
    00022 #include "../../core/alloc_func.hpp"
    00023 #include "../../functions.h"
    00024 #include "../../core/random_func.hpp"
    00025 #include "../../string_func.h"
    00026 #include "../../crashlog.h"
    00027 #include <errno.h>
    00028 #include <sys/stat.h>
    00029
    00030 static bool _has_console;
    00031
    00032 static bool cursor_visible = true;
    00033
    00034 bool MyShowCursor(bool show)
    00035 {
    00036   if (cursor_visible == show) return show;
    00037
    00038   cursor_visible = show;
    00039   ShowCursor(show);
    00040
    00041   return !show;
    00042 }
    00043
    00047 bool LoadLibraryList(Function proc[], const char *dll)
    00048 {
    00049   while (*dll != '\0') {
    00050     HMODULE lib;
    00051     lib = LoadLibrary(MB_TO_WIDE(dll));
    00052
    00053     if (lib == NULL) return false;
    00054     for (;;) {
    00055       FARPROC p;
    00056
    00057       while (*dll++ != '\0') { /* Nothing */ }
    00058       if (*dll == '\0') break;
    00059 #if defined(WINCE)
    00060       p = GetProcAddress(lib, MB_TO_WIDE(dll));
    00061 #else
    00062       p = GetProcAddress(lib, dll);
    00063 #endif
    00064       if (p == NULL) return false;
    00065       *proc++ = (Function)p;
    00066     }
    00067     dll++;
    00068   }
    00069   return true;
    00070 }
    00071
    00072 void ShowOSErrorBox(const char *buf, bool system)
    00073 {
    00074   MyShowCursor(true);
    00075   MessageBox(GetActiveWindow(), MB_TO_WIDE(buf), _T("Error!"), MB_ICONSTOP);
    00076 }
    00077
    00078 /* Code below for windows version of opendir/readdir/closedir copied and
    00079  * modified from Jan Wassenberg's GPL implementation posted over at
    00080  * http://www.gamedev.net/community/forums/topic.asp?topic_id=364584&whichpage=1&#2398903 */
    00081
    00082 /* suballocator - satisfies most requests with a reusable static instance.
    00083  * this avoids hundreds of alloc/free which would fragment the heap.
    00084  * To guarantee concurrency, we fall back to malloc if the instance is
    00085  * already in use (it's important to avoid suprises since this is such a
    00086  * low-level routine). */
    00087 static DIR _global_dir;
    00088 static LONG _global_dir_is_in_use = false;
    00089
    00090 static inline DIR *dir_calloc()
    00091 {
    00092   DIR *d;
    00093
    00094   if (InterlockedExchange(&_global_dir_is_in_use, true) == (LONG)true) {
    00095     d = CallocT<DIR>(1);
    00096   } else {
    00097     d = &_global_dir;
    00098     memset(d, 0, sizeof(*d));
    00099   }
    00100   return d;
    00101 }
    00102
    00103 static inline void dir_free(DIR *d)
    00104 {
    00105   if (d == &_global_dir) {
    00106     _global_dir_is_in_use = (LONG)false;
    00107   } else {
    00108     free(d);
    00109   }
    00110 }
    00111
    00112 DIR *opendir(const TCHAR *path)
    00113 {
    00114   DIR *d;
    00115   UINT sem = SetErrorMode(SEM_FAILCRITICALERRORS); // disable 'no-disk' message box
    00116   DWORD fa = GetFileAttributes(path);
    00117
    00118   if ((fa != INVALID_FILE_ATTRIBUTES) && (fa & FILE_ATTRIBUTE_DIRECTORY)) {
    00119     d = dir_calloc();
    00120     if (d != NULL) {
    00121       TCHAR search_path[MAX_PATH];
    00122       bool slash = path[_tcslen(path) - 1] == '\\';
    00123
    00124       /* build search path for FindFirstFile, try not to append additional slashes
    00125        * as it throws Win9x off its groove for root directories */
    00126       _sntprintf(search_path, lengthof(search_path), _T("%s%s*"), path, slash ? _T("") : _T("\\"));
    00127       *lastof(search_path) = '\0';
    00128       d->hFind = FindFirstFile(search_path, &d->fd);
    00129
    00130       if (d->hFind != INVALID_HANDLE_VALUE ||
    00131           GetLastError() == ERROR_NO_MORE_FILES) { // the directory is empty
    00132         d->ent.dir = d;
    00133         d->at_first_entry = true;
    00134       } else {
    00135         dir_free(d);
    00136         d = NULL;
    00137       }
    00138     } else {
    00139       errno = ENOMEM;
    00140     }
    00141   } else {
    00142     /* path not found or not a directory */
    00143     d = NULL;
    00144     errno = ENOENT;
    00145   }
    00146
    00147   SetErrorMode(sem); // restore previous setting
    00148   return d;
    00149 }
    00150
    00151 struct dirent *readdir(DIR *d)
    00152 {
    00153   DWORD prev_err = GetLastError(); // avoid polluting last error
    00154
    00155   if (d->at_first_entry) {
    00156     /* the directory was empty when opened */
    00157     if (d->hFind == INVALID_HANDLE_VALUE) return NULL;
    00158     d->at_first_entry = false;
    00159   } else if (!FindNextFile(d->hFind, &d->fd)) { // determine cause and bail
    00160     if (GetLastError() == ERROR_NO_MORE_FILES) SetLastError(prev_err);
    00161     return NULL;
    00162   }
    00163
    00164   /* This entry has passed all checks; return information about it.
    00165    * (note: d_name is a pointer; see struct dirent definition) */
    00166   d->ent.d_name = d->fd.cFileName;
    00167   return &d->ent;
    00168 }
    00169
    00170 int closedir(DIR *d)
    00171 {
    00172   FindClose(d->hFind);
    00173   dir_free(d);
    00174   return 0;
    00175 }
    00176
    00177 bool FiosIsRoot(const char *file)
    00178 {
    00179   return file[3] == '\0'; // C:\...
    00180 }
    00181
    00182 void FiosGetDrives()
    00183 {
    00184 #if defined(WINCE)
    00185   /* WinCE only knows one drive: / */
    00186   FiosItem *fios = _fios_items.Append();
    00187   fios->type = FIOS_TYPE_DRIVE;
    00188   fios->mtime = 0;
    00189   snprintf(fios->name, lengthof(fios->name), PATHSEP "");
    00190   strecpy(fios->title, fios->name, lastof(fios->title));
    00191 #else
    00192   TCHAR drives[256];
    00193   const TCHAR *s;
    00194
    00195   GetLogicalDriveStrings(lengthof(drives), drives);
    00196   for (s = drives; *s != '\0';) {
    00197     FiosItem *fios = _fios_items.Append();
    00198     fios->type = FIOS_TYPE_DRIVE;
    00199     fios->mtime = 0;
    00200     snprintf(fios->name, lengthof(fios->name),  "%c:", s[0] & 0xFF);
    00201     strecpy(fios->title, fios->name, lastof(fios->title));
    00202     while (*s++ != '\0') { /* Nothing */ }
    00203   }
    00204 #endif
    00205 }
    00206
    00207 bool FiosIsValidFile(const char *path, const struct dirent *ent, struct stat *sb)
    00208 {
    00209   /* hectonanoseconds between Windows and POSIX epoch */
    00210   static const int64 posix_epoch_hns = 0x019DB1DED53E8000LL;
    00211   const WIN32_FIND_DATA *fd = &ent->dir->fd;
    00212
    00213   sb->st_size  = ((uint64) fd->nFileSizeHigh << 32) + fd->nFileSizeLow;
    00214   /* UTC FILETIME to seconds-since-1970 UTC
    00215    * we just have to subtract POSIX epoch and scale down to units of seconds.
    00216    * http://www.gamedev.net/community/forums/topic.asp?topic_id=294070&whichpage=1&#1860504
    00217    * XXX - not entirely correct, since filetimes on FAT aren't UTC but local,
    00218    * this won't entirely be correct, but we use the time only for comparsion. */
    00219   sb->st_mtime = (time_t)((*(uint64*)&fd->ftLastWriteTime - posix_epoch_hns) / 1E7);
    00220   sb->st_mode  = (fd->dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)? S_IFDIR : S_IFREG;
    00221
    00222   return true;
    00223 }
    00224
    00225 bool FiosIsHiddenFile(const struct dirent *ent)
    00226 {
    00227   return (ent->dir->fd.dwFileAttributes & (FILE_ATTRIBUTE_HIDDEN | FILE_ATTRIBUTE_SYSTEM)) != 0;
    00228 }
    00229
    00230 bool FiosGetDiskFreeSpace(const char *path, uint64 *tot)
    00231 {
    00232   UINT sem = SetErrorMode(SEM_FAILCRITICALERRORS);  // disable 'no-disk' message box
    00233   bool retval = false;
    00234   TCHAR root[4];
    00235   DWORD spc, bps, nfc, tnc;
    00236
    00237   _sntprintf(root, lengthof(root), _T("%c:") _T(PATHSEP), path[0]);
    00238   if (tot != NULL && GetDiskFreeSpace(root, &spc, &bps, &nfc, &tnc)) {
    00239     *tot = ((spc * bps) * (uint64)nfc);
    00240     retval = true;
    00241   }
    00242
    00243   SetErrorMode(sem); // reset previous setting
    00244   return retval;
    00245 }
    00246
    00247 static int ParseCommandLine(char *line, char **argv, int max_argc)
    00248 {
    00249   int n = 0;
    00250
    00251   do {
    00252     /* skip whitespace */
    00253     while (*line == ' ' || *line == '\t') line++;
    00254
    00255     /* end? */
    00256     if (*line == '\0') break;
    00257
    00258     /* special handling when quoted */
    00259     if (*line == '"') {
    00260       argv[n++] = ++line;
    00261       while (*line != '"') {
    00262         if (*line == '\0') return n;
    00263         line++;
    00264       }
    00265     } else {
    00266       argv[n++] = line;
    00267       while (*line != ' ' && *line != '\t') {
    00268         if (*line == '\0') return n;
    00269         line++;
    00270       }
    00271     }
    00272     *line++ = '\0';
    00273   } while (n != max_argc);
    00274
    00275   return n;
    00276 }
    00277
    00278 void CreateConsole()
    00279 {
    00280 #if defined(WINCE)
    00281   /* WinCE doesn't support console stuff */
    00282 #else
    00283   HANDLE hand;
    00284   CONSOLE_SCREEN_BUFFER_INFO coninfo;
    00285
    00286   if (_has_console) return;
    00287   _has_console = true;
    00288
    00289   AllocConsole();
    00290
    00291   hand = GetStdHandle(STD_OUTPUT_HANDLE);
    00292   GetConsoleScreenBufferInfo(hand, &coninfo);
    00293   coninfo.dwSize.Y = 500;
    00294   SetConsoleScreenBufferSize(hand, coninfo.dwSize);
    00295
    00296   /* redirect unbuffered STDIN, STDOUT, STDERR to the console */
    00297 #if !defined(__CYGWIN__)
    00298   *stdout = *_fdopen( _open_osfhandle((intptr_t)hand, _O_TEXT), "w" );
    00299   *stdin = *_fdopen(_open_osfhandle((intptr_t)GetStdHandle(STD_INPUT_HANDLE), _O_TEXT), "r" );
    00300   *stderr = *_fdopen(_open_osfhandle((intptr_t)GetStdHandle(STD_ERROR_HANDLE), _O_TEXT), "w" );
    00301 #else
    00302   /* open_osfhandle is not in cygwin */
    00303   *stdout = *fdopen(1, "w" );
    00304   *stdin = *fdopen(0, "r" );
    00305   *stderr = *fdopen(2, "w" );
    00306 #endif
    00307
    00308   setvbuf(stdin, NULL, _IONBF, 0);
    00309   setvbuf(stdout, NULL, _IONBF, 0);
    00310   setvbuf(stderr, NULL, _IONBF, 0);
    00311 #endif
    00312 }
    00313
    00315 static const char *_help_msg;
    00316
    00318 static INT_PTR CALLBACK HelpDialogFunc(HWND wnd, UINT msg, WPARAM wParam, LPARAM lParam)
    00319 {
    00320   switch (msg) {
    00321     case WM_INITDIALOG: {
    00322       char help_msg[8192];
    00323       const char *p = _help_msg;
    00324       char *q = help_msg;
    00325       while (q != lastof(help_msg) && *p != '\0') {
    00326         if (*p == '\n') {
    00327           *q++ = '\r';
    00328           if (q == lastof(help_msg)) {
    00329             q[-1] = '\0';
    00330             break;
    00331           }
    00332         }
    00333         *q++ = *p++;
    00334       }
    00335       *q = '\0';
    00336 #if defined(UNICODE)
    00337       /* We need to put the text in a seperate buffer because the default
    00338        * buffer in MB_TO_WIDE might not be large enough (512 chars) */
    00339       wchar_t help_msgW[8192];
    00340 #endif
    00341       SetDlgItemText(wnd, 11, MB_TO_WIDE_BUFFER(help_msg, help_msgW, lengthof(help_msgW)));
    00342       SendDlgItemMessage(wnd, 11, WM_SETFONT, (WPARAM)GetStockObject(ANSI_FIXED_FONT), FALSE);
    00343     } return TRUE;
    00344
    00345     case WM_COMMAND:
    00346       if (wParam == 12) ExitProcess(0);
    00347       return TRUE;
    00348     case WM_CLOSE:
    00349       ExitProcess(0);
    00350   }
    00351
    00352   return FALSE;
    00353 }
    00354
    00355 void ShowInfo(const char *str)
    00356 {
    00357   if (_has_console) {
    00358     fprintf(stderr, "%s\n", str);
    00359   } else {
    00360     bool old;
    00361     ReleaseCapture();
    00362     _left_button_clicked = _left_button_down = false;
    00363
    00364     old = MyShowCursor(true);
    00365     if (strlen(str) > 2048) {
    00366       /* The minimum length of the help message is 2048. Other messages sent via
    00367        * ShowInfo are much shorter, or so long they need this way of displaying
    00368        * them anyway. */
    00369       _help_msg = str;
    00370       DialogBox(GetModuleHandle(NULL), MAKEINTRESOURCE(101), NULL, HelpDialogFunc);
    00371     } else {
    00372 #if defined(UNICODE)
    00373       /* We need to put the text in a seperate buffer because the default
    00374        * buffer in MB_TO_WIDE might not be large enough (512 chars) */
    00375       wchar_t help_msgW[8192];
    00376 #endif
    00377       if (MessageBox(GetActiveWindow(), MB_TO_WIDE_BUFFER(str, help_msgW, lengthof(help_msgW)), _T("OpenTTD"), MB_ICONINFORMATION | MB_OKCANCEL) == IDCANCEL) {
    00378         CreateConsole();
    00379       }
    00380     }
    00381     MyShowCursor(old);
    00382   }
    00383 }
    00384
    00385 #if defined(WINCE)
    00386 int APIENTRY WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPTSTR lpCmdLine, int nCmdShow)
    00387 #else
    00388 int APIENTRY WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow)
    00389 #endif
    00390 {
    00391   int argc;
    00392   char *argv[64]; // max 64 command line arguments
    00393   char *cmdline;
    00394
    00395 #if !defined(UNICODE)
    00396   _codepage = GetACP(); // get system codepage as some kind of a default
    00397 #endif /* UNICODE */
    00398
    00399   CrashLog::InitialiseCrashLog();
    00400
    00401 #if defined(UNICODE)
    00402
    00403 #if !defined(WINCE)
    00404   /* Check if a win9x user started the win32 version */
    00405   if (HasBit(GetVersion(), 31)) usererror("This version of OpenTTD doesn't run on windows 95/98/ME.\nPlease download the win9x binary and try again.");
    00406 #endif
    00407
    00408   /* For UNICODE we need to convert the commandline to char* _AND_
    00409    * save it because argv[] points into this buffer and thus needs to
    00410    * be available between subsequent calls to FS2OTTD() */
    00411   char cmdlinebuf[MAX_PATH];
    00412 #endif /* UNICODE */
    00413
    00414   cmdline = WIDE_TO_MB_BUFFER(GetCommandLine(), cmdlinebuf, lengthof(cmdlinebuf));
    00415
    00416 #if defined(_DEBUG)
    00417   CreateConsole();
    00418 #endif
    00419
    00420 #if !defined(WINCE)
    00421   _set_error_mode(_OUT_TO_MSGBOX); // force assertion output to messagebox
    00422 #endif
    00423
    00424   /* setup random seed to something quite random */
    00425   SetRandomSeed(GetTickCount());
    00426
    00427   argc = ParseCommandLine(cmdline, argv, lengthof(argv));
    00428
    00429   ttd_main(argc, argv);
    00430   return 0;
    00431 }
    00432
    00433 #if defined(WINCE)
    00434 void GetCurrentDirectoryW(int length, wchar_t *path)
    00435 {
    00436   /* Get the name of this module */
    00437   GetModuleFileName(NULL, path, length);
    00438
    00439   /* Remove the executable name, this we call CurrentDir */
    00440   wchar_t *pDest = wcsrchr(path, '\\');
    00441   if (pDest != NULL) {
    00442     int result = pDest - path + 1;
    00443     path[result] = '\0';
    00444   }
    00445 }
    00446 #endif
    00447
    00448 char *getcwd(char *buf, size_t size)
    00449 {
    00450 #if defined(WINCE)
    00451   TCHAR path[MAX_PATH];
    00452   GetModuleFileName(NULL, path, MAX_PATH);
    00453   convert_from_fs(path, buf, size);
    00454   /* GetModuleFileName returns dir with file, so remove everything behind latest '\\' */
    00455   char *p = strrchr(buf, '\\');
    00456   if (p != NULL) *p = '\0';
    00457 #elif defined(UNICODE)
    00458   TCHAR path[MAX_PATH];
    00459   GetCurrentDirectory(MAX_PATH - 1, path);
    00460   convert_from_fs(path, buf, size);
    00461 #else
    00462   GetCurrentDirectory(size, buf);
    00463 #endif
    00464   return buf;
    00465 }
    00466
    00467
    00468 void DetermineBasePaths(const char *exe)
    00469 {
    00470   char tmp[MAX_PATH];
    00471   TCHAR path[MAX_PATH];
    00472 #ifdef WITH_PERSONAL_DIR
    00473   SHGetFolderPath(NULL, CSIDL_PERSONAL, NULL, SHGFP_TYPE_CURRENT, path);
    00474   strecpy(tmp, WIDE_TO_MB_BUFFER(path, tmp, lengthof(tmp)), lastof(tmp));
    00475   AppendPathSeparator(tmp, MAX_PATH);
    00476   ttd_strlcat(tmp, PERSONAL_DIR, MAX_PATH);
    00477   AppendPathSeparator(tmp, MAX_PATH);
    00478   _searchpaths[SP_PERSONAL_DIR] = strdup(tmp);
    00479
    00480   SHGetFolderPath(NULL, CSIDL_COMMON_DOCUMENTS, NULL, SHGFP_TYPE_CURRENT, path);
    00481   strecpy(tmp, WIDE_TO_MB_BUFFER(path, tmp, lengthof(tmp)), lastof(tmp));
    00482   AppendPathSeparator(tmp, MAX_PATH);
    00483   ttd_strlcat(tmp, PERSONAL_DIR, MAX_PATH);
    00484   AppendPathSeparator(tmp, MAX_PATH);
    00485   _searchpaths[SP_SHARED_DIR] = strdup(tmp);
    00486 #else
    00487   _searchpaths[SP_PERSONAL_DIR] = NULL;
    00488   _searchpaths[SP_SHARED_DIR]   = NULL;
    00489 #endif
    00490
    00491   /* Get the path to working directory of OpenTTD */
    00492   getcwd(tmp, lengthof(tmp));
    00493   AppendPathSeparator(tmp, MAX_PATH);
    00494   _searchpaths[SP_WORKING_DIR] = strdup(tmp);
    00495
    00496   if (!GetModuleFileName(NULL, path, lengthof(path))) {
    00497     DEBUG(misc, 0, "GetModuleFileName failed (%lu)\n", GetLastError());
    00498     _searchpaths[SP_BINARY_DIR] = NULL;
    00499   } else {
    00500     TCHAR exec_dir[MAX_PATH];
    00501     _tcsncpy(path, MB_TO_WIDE_BUFFER(exe, path, lengthof(path)), lengthof(path));
    00502     if (!GetFullPathName(path, lengthof(exec_dir), exec_dir, NULL)) {
    00503       DEBUG(misc, 0, "GetFullPathName failed (%lu)\n", GetLastError());
    00504       _searchpaths[SP_BINARY_DIR] = NULL;
    00505     } else {
    00506       strecpy(tmp, WIDE_TO_MB_BUFFER(exec_dir, tmp, lengthof(tmp)), lastof(tmp));
    00507       char *s = strrchr(tmp, PATHSEPCHAR);
    00508       *(s + 1) = '\0';
    00509       _searchpaths[SP_BINARY_DIR] = strdup(tmp);
    00510     }
    00511   }
    00512
    00513   _searchpaths[SP_INSTALLATION_DIR]       = NULL;
    00514   _searchpaths[SP_APPLICATION_BUNDLE_DIR] = NULL;
    00515 }
    00516
    00517
    00518 bool GetClipboardContents(char *buffer, size_t buff_len)
    00519 {
    00520   HGLOBAL cbuf;
    00521   const char *ptr;
    00522
    00523   if (IsClipboardFormatAvailable(CF_UNICODETEXT)) {
    00524     OpenClipboard(NULL);
    00525     cbuf = GetClipboardData(CF_UNICODETEXT);
    00526
    00527     ptr = (const char*)GlobalLock(cbuf);
    00528     const char *ret = convert_from_fs((wchar_t*)ptr, buffer, buff_len);
    00529     GlobalUnlock(cbuf);
    00530     CloseClipboard();
    00531
    00532     if (*ret == '\0') return false;
    00533 #if !defined(UNICODE)
    00534   } else if (IsClipboardFormatAvailable(CF_TEXT)) {
    00535     OpenClipboard(NULL);
    00536     cbuf = GetClipboardData(CF_TEXT);
    00537
    00538     ptr = (const char*)GlobalLock(cbuf);
    00539     ttd_strlcpy(buffer, FS2OTTD(ptr), buff_len);
    00540
    00541     GlobalUnlock(cbuf);
    00542     CloseClipboard();
    00543 #endif /* UNICODE */
    00544   } else {
    00545     return false;
    00546   }
    00547
    00548   return true;
    00549 }
    00550
    00551
    00552 void CSleep(int milliseconds)
    00553 {
    00554   Sleep(milliseconds);
    00555 }
    00556
    00557
    00570 const char *FS2OTTD(const TCHAR *name)
    00571 {
    00572   static char utf8_buf[512];
    00573 #if defined(UNICODE)
    00574   return convert_from_fs(name, utf8_buf, lengthof(utf8_buf));
    00575 #else
    00576   char *s = utf8_buf;
    00577
    00578   for (; *name != '\0'; name++) {
    00579     wchar_t w;
    00580     int len = MultiByteToWideChar(_codepage, 0, name, 1, &w, 1);
    00581     if (len != 1) {
    00582       DEBUG(misc, 0, "[utf8] M2W error converting '%c'. Errno %lu", *name, GetLastError());
    00583       continue;
    00584     }
    00585
    00586     if (s + Utf8CharLen(w) >= lastof(utf8_buf)) break;
    00587     s += Utf8Encode(s, w);
    00588   }
    00589
    00590   *s = '\0';
    00591   return utf8_buf;
    00592 #endif /* UNICODE */
    00593 }
    00594
    00607 const TCHAR *OTTD2FS(const char *name)
    00608 {
    00609   static TCHAR system_buf[512];
    00610 #if defined(UNICODE)
    00611   return convert_to_fs(name, system_buf, lengthof(system_buf));
    00612 #else
    00613   char *s = system_buf;
    00614
    00615   for (WChar c; (c = Utf8Consume(&name)) != '\0';) {
    00616     if (s >= lastof(system_buf)) break;
    00617
    00618     char mb;
    00619     int len = WideCharToMultiByte(_codepage, 0, (wchar_t*)&c, 1, &mb, 1, NULL, NULL);
    00620     if (len != 1) {
    00621       DEBUG(misc, 0, "[utf8] W2M error converting '0x%X'. Errno %lu", c, GetLastError());
    00622       continue;
    00623     }
    00624
    00625     *s++ = mb;
    00626   }
    00627
    00628   *s = '\0';
    00629   return system_buf;
    00630 #endif /* UNICODE */
    00631 }
    00632
    00633
    00640 char *convert_from_fs(const wchar_t *name, char *utf8_buf, size_t buflen)
    00641 {
    00642   int len = WideCharToMultiByte(CP_UTF8, 0, name, -1, utf8_buf, (int)buflen, NULL, NULL);
    00643   if (len == 0) {
    00644     DEBUG(misc, 0, "[utf8] W2M error converting wide-string. Errno %lu", GetLastError());
    00645     utf8_buf[0] = '\0';
    00646   }
    00647
    00648   return utf8_buf;
    00649 }
    00650
    00651
    00659 wchar_t *convert_to_fs(const char *name, wchar_t *utf16_buf, size_t buflen)
    00660 {
    00661   int len = MultiByteToWideChar(CP_UTF8, 0, name, -1, utf16_buf, (int)buflen);
    00662   if (len == 0) {
    00663     DEBUG(misc, 0, "[utf8] M2W error converting '%s'. Errno %lu", name, GetLastError());
    00664     utf16_buf[0] = '\0';
    00665   }
    00666
    00667   return utf16_buf;
    00668 }
    00669
    00674 HRESULT OTTDSHGetFolderPath(HWND hwnd, int csidl, HANDLE hToken, DWORD dwFlags, LPTSTR pszPath)
    00675 {
    00676   static HRESULT (WINAPI *SHGetFolderPath)(HWND, int, HANDLE, DWORD, LPTSTR) = NULL;
    00677   static bool first_time = true;
    00678
    00679   /* We only try to load the library one time; if it fails, it fails */
    00680   if (first_time) {
    00681 #if defined(UNICODE)
    00682 # define W(x) x "W"
    00683 #else
    00684 # define W(x) x "A"
    00685 #endif
    00686     if (!LoadLibraryList((Function*)&SHGetFolderPath, "SHFolder.dll\0" W("SHGetFolderPath") "\0\0")) {
    00687       DEBUG(misc, 0, "Unable to load " W("SHGetFolderPath") "from SHFolder.dll");
    00688     }
    00689 #undef W
    00690     first_time = false;
    00691   }
    00692
    00693   if (SHGetFolderPath != NULL) return SHGetFolderPath(hwnd, csidl, hToken, dwFlags, pszPath);
    00694
    00695   /* SHGetFolderPath doesn't exist, try a more conservative approach,
    00696    * eg environment variables. This is only included for legacy modes
    00697    * MSDN says: that 'pszPath' is a "Pointer to a null-terminated string of
    00698    * length MAX_PATH which will receive the path" so let's assume that
    00699    * Windows 95 with Internet Explorer 5.0, Windows 98 with Internet Explorer 5.0,
    00700    * Windows 98 Second Edition (SE), Windows NT 4.0 with Internet Explorer 5.0,
    00701    * Windows NT 4.0 with Service Pack 4 (SP4) */
    00702   {
    00703     DWORD ret;
    00704     switch (csidl) {
    00705       case CSIDL_FONTS: // Get the system font path, eg %WINDIR%\Fonts
    00706         ret = GetEnvironmentVariable(_T("WINDIR"), pszPath, MAX_PATH);
    00707         if (ret == 0) break;
    00708         _tcsncat(pszPath, _T("\\Fonts"), MAX_PATH);
    00709
    00710         return (HRESULT)0;
    00711         break;
    00712       /* XXX - other types to go here when needed... */
    00713     }
    00714   }
    00715
    00716   return E_INVALIDARG;
    00717 }
    00718
    00720 const char *GetCurrentLocale(const char *)
    00721 {
    00722   char lang[9], country[9];
    00723   if (GetLocaleInfoA(LOCALE_USER_DEFAULT, LOCALE_SISO639LANGNAME, lang, lengthof(lang)) == 0 ||
    00724       GetLocaleInfoA(LOCALE_USER_DEFAULT, LOCALE_SISO3166CTRYNAME, country, lengthof(country)) == 0) {
    00725     /* Unable to retrieve the locale. */
    00726     return NULL;
    00727   }
    00728   /* Format it as 'en_us'. */
    00729   static char retbuf[6] = {lang[0], lang[1], '_', country[0], country[1], 0};
    00730   return retbuf;
    00731 }