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1.1 ! root 1: //-------------------------------------------------------------------------- ! 2: // ! 3: // Module Name: QURYFONT.C ! 4: // ! 5: // Brief Description: Device font querying routines ! 6: // ! 7: // Author: Kent Settle (kentse) ! 8: // Created: 25-Feb-1991 ! 9: // ! 10: // Copyright (C) 1991 - 1992 Microsoft Corporation. ! 11: // ! 12: // This module contains DrvQueryFont, DrvQueryFontTree and DrvQueryFontData, ! 13: // and related routines. ! 14: // ! 15: // History: ! 16: // 25-Feb-1991 -by- Kent Settle (kentse) ! 17: // Created. ! 18: //-------------------------------------------------------------------------- ! 19: ! 20: #include <string.h> ! 21: #include "pscript.h" ! 22: #include "enable.h" ! 23: #include "resource.h" ! 24: #include <memory.h> ! 25: #include "winbase.h" ! 26: ! 27: extern HMODULE ghmodDrv; // GLOBAL MODULE HANDLE. ! 28: ! 29: int _fltused; // HEY, it shut's up the linker. That's why it's here. ! 30: ! 31: // declarations of routines residing within this module. ! 32: ! 33: PNTFM GetFont(PDEVDATA, ULONG, HANDLE *); ! 34: ! 35: //-------------------------------------------------------------------------- ! 36: // PIFIMETRICS DrvQueryFont (dhpdev,iFace) ! 37: // DHPDEV dhpdev; ! 38: // ULONG iFile; ! 39: // ULONG iFace; ! 40: // ULONG *pid; ! 41: // ! 42: // GDI uses this function to get the IFIMETRICS structure for a given font. ! 43: // ! 44: // Parameters: ! 45: // dhpdev This is a PDEV handle returned from a call to DrvEnablePDEV. ! 46: // ! 47: // iFace This is the index of the driver font. The index of the first ! 48: // font is one. GDI knows the number of fonts from DEVINFO. ! 49: // ! 50: // Returns: ! 51: // The function returns a pointer to the IFIMETRICS structure of the font. ! 52: // This structure must remain unchanged during the lifetime of the ! 53: // associated PDEV. ! 54: // ! 55: // If an error occurs, NULL should be returned and an error code should ! 56: // be logged. ! 57: // ! 58: // History: ! 59: // 25-Mar-1993 -by- Kent Settle (kentse) ! 60: // Moved all the IFIMETRICS stuff to ..\pslib\afmtopfm.c ! 61: // Thu 23-Jan-1992 11:38:40 by Kirk Olynyk [kirko] ! 62: // Changed the the IFIMETRICS ! 63: // 25-Feb-1991 -by- Kent Settle (kentse) ! 64: // Wrote it. ! 65: //-------------------------------------------------------------------------- ! 66: ! 67: ! 68: PIFIMETRICS DrvQueryFont (dhpdev,iFile,iFace,pid) ! 69: DHPDEV dhpdev; ! 70: ULONG iFile; ! 71: ULONG iFace; ! 72: ULONG *pid; ! 73: { ! 74: PDEVDATA pdev; ! 75: PNTFM pntfm; ! 76: ! 77: UNREFERENCED_PARAMETER(iFile); ! 78: ! 79: #ifdef TESTING ! 80: DbgPrint("Entering DrvQueryFont.\n"); ! 81: #endif ! 82: ! 83: // This can be used by the driver to flag or id the data returned. ! 84: // May be useful for deletion of the data later by DrvFree(). ! 85: ! 86: *pid = 0; // don't need to use for this driver ! 87: ! 88: pdev = (PDEVDATA)dhpdev; ! 89: ! 90: if (bValidatePDEV(pdev) == FALSE) ! 91: { ! 92: RIP("PSCRIPT!DrvQueryFont: invalid pdev.\n"); ! 93: SetLastError(ERROR_INVALID_PARAMETER); ! 94: return((PIFIMETRICS)NULL); ! 95: } ! 96: ! 97: // make sure iFace is valid. ! 98: ! 99: if ((iFace == 0) || (iFace > (pdev->cDeviceFonts + pdev->cSoftFonts + 1))) ! 100: { ! 101: RIP("PSCRIPT!DrvQueryFont: iFace invalid.\n"); ! 102: SetLastError(ERROR_INVALID_PARAMETER); ! 103: return((PIFIMETRICS)NULL); ! 104: } ! 105: ! 106: pntfm = pdev->pfmtable[iFace - 1].pntfm; ! 107: ! 108: // return pointer to IFIMETRICS structure to engine. ! 109: ! 110: return((IFIMETRICS *)((CHAR *)pntfm + pntfm->loIFIMETRICS)); ! 111: } ! 112: ! 113: ! 114: //-------------------------------------------------------------------------- ! 115: // PNTFM GetFont(pdev, iFace, phFontRes) ! 116: // PDEVDATA pdev; ! 117: // ULONG iFace; ! 118: // HANDLE *phFontRes; ! 119: // ! 120: // This routine returns a pointer to the NT Font Metrics structure for ! 121: // the specified font. If the metrics cannot be found, a NULL pointer ! 122: // is returned. ! 123: // ! 124: // History: ! 125: // 17-Apr-1991 -by- Kent Settle (kentse) ! 126: // Wrote it. ! 127: //-------------------------------------------------------------------------- ! 128: ! 129: PNTFM GetFont(pdev, iFace, phFontRes) ! 130: PDEVDATA pdev; ! 131: ULONG iFace; ! 132: HANDLE *phFontRes; ! 133: { ! 134: PNTFM pntfm, pntfmtmp = NULL; ! 135: USHORT usSize; ! 136: HANDLE hRes; ! 137: ULONG iFont; ! 138: PBYTE pfont; ! 139: SOFTFONTENTRY *pSFEntry; ! 140: WCHAR wcbuf[MAX_PATH]; ! 141: PWSTR pwstrPath; ! 142: DWORD cwBuf; ! 143: ! 144: if ((iFace == 0) || (iFace > (pdev->cDeviceFonts + pdev->cSoftFonts + 1))) ! 145: { ! 146: RIP("PSCRIPT!GetFont: invalid iFace.\n"); ! 147: SetLastError(ERROR_INVALID_PARAMETER); ! 148: return((PNTFM)NULL); ! 149: } ! 150: ! 151: // handle the device vs soft font case. ! 152: ! 153: if (iFace <= pdev->cDeviceFonts) ! 154: { ! 155: // get a pointer to the fonts for the current device. ! 156: ! 157: pfont = (BYTE *)pdev->pntpd + pdev->pntpd->loFonts; ! 158: ! 159: iFont = (ULONG)pfont[iFace - 1]; ! 160: ! 161: #ifdef TESTING ! 162: DbgPrint("GetFont: iFace %d mapped to iFont %d.\n", iFace, iFont); ! 163: #endif ! 164: ! 165: // find the font resource in question. ! 166: ! 167: if (!(hRes = FindResource(ghmodDrv, MAKEINTRESOURCE(iFont), ! 168: MAKEINTRESOURCE(MYFONT)))) ! 169: { ! 170: RIP("PSCRIPT!GetFont: Couldn't find font resource\n"); ! 171: return((PNTFM)NULL); ! 172: } ! 173: ! 174: usSize = (USHORT)SizeofResource(ghmodDrv, hRes); ! 175: ! 176: // get the handle to the resource. ! 177: ! 178: if (!(*phFontRes = LoadResource(ghmodDrv, hRes))) ! 179: { ! 180: RIP("PSCRIPT!GetFont: LoadResource failed.\n"); ! 181: return((PNTFM)NULL); ! 182: } ! 183: ! 184: // get a pointer to the resource data. ! 185: ! 186: if (!(pntfm = (PNTFM)LockResource(*phFontRes))) ! 187: { ! 188: RIP("PSCRIPT!GetFont: LockResource failed.\n"); ! 189: FreeResource(*phFontRes); ! 190: return((PNTFM)NULL); ! 191: } ! 192: } ! 193: else // must be a soft font. ! 194: { ! 195: // search through the linked list we setup at DEVINFO time to ! 196: // find the .PFM file associated with this font. ! 197: ! 198: pSFEntry = pdev->pSFList; ! 199: ! 200: while (pSFEntry->iFace != iFace) ! 201: pSFEntry = (PSOFTFONTENTRY)pSFEntry->psfeNext; ! 202: ! 203: // we've found the entry. create the fully qualified pathname to ! 204: // the corresponding .PFM file, then map that file. ! 205: ! 206: wcsncpy(wcbuf, pdev->pwstrPPDFile, (sizeof(wcbuf) / 2)); ! 207: ! 208: // back up over the data file name to get the subdirectory. ! 209: ! 210: cwBuf = wcslen(wcbuf); ! 211: ! 212: pwstrPath = wcbuf; ! 213: pwstrPath += cwBuf; ! 214: ! 215: while(*pwstrPath-- != (WCHAR)'\\') ! 216: ; ! 217: ! 218: // overwrite the character after the backslash with the NULL ! 219: // terminator. ! 220: ! 221: pwstrPath += 2; ! 222: *pwstrPath = (WCHAR)'\0'; ! 223: ! 224: // append the .PFM filename to qualified path. ! 225: ! 226: wcsncat(wcbuf, pSFEntry->pwstrPFMFile, ((sizeof(wcbuf) / 2) - cwBuf)); ! 227: ! 228: // put exception handling around this in case the network connection ! 229: // goes down while we are doing this. ! 230: ! 231: try ! 232: { ! 233: pntfmtmp = (PNTFM)MapFile(wcbuf); ! 234: ! 235: if (!pntfmtmp) ! 236: { ! 237: RIP("PSCRIPT!GetFont: MapFile failed.\n"); ! 238: return((PNTFM)NULL); ! 239: } ! 240: ! 241: // allocate local buffer to copy the softfont data into. ! 242: ! 243: if (!(pntfm = (PNTFM)HeapAlloc(pdev->hheap, 0, pntfmtmp->cjThis))) ! 244: { ! 245: RIP("PSCRIPT!GetFont: HeapAlloc for pntfm failed.\n"); ! 246: return((PNTFM)NULL); ! 247: } ! 248: ! 249: // copy softfont to local buffer. ! 250: ! 251: CopyMemory(pntfm, pntfmtmp, pntfmtmp->cjThis); ! 252: ! 253: UnmapViewOfFile((PVOID)pntfmtmp); ! 254: } ! 255: except (EXCEPTION_EXECUTE_HANDLER) ! 256: { ! 257: #if DBG ! 258: DbgPrint("MapFile to softfont file failed.\n"); ! 259: #endif ! 260: return((PNTFM)NULL); ! 261: } ! 262: } ! 263: ! 264: return(pntfm); // will be NULL on error ! 265: } ! 266: ! 267: ! 268: //-------------------------------------------------------------------------- ! 269: // VOID FreeFont(pdev, iFace, hFontRes, pntfm) ! 270: // PDEVDATA pdev; ! 271: // ULONG iFace; ! 272: // HANDLE hFontRes; ! 273: // PNTFM pntfm; ! 274: // ! 275: // This routine frees up any resources allocated during GetFont ! 276: // for the given font. ! 277: // ! 278: // History: ! 279: // 21-Feb-1992 -by- Kent Settle (kentse) ! 280: // Wrote it. ! 281: //-------------------------------------------------------------------------- ! 282: ! 283: VOID FreeFont(pdev, iFace, hFontRes, pntfm) ! 284: PDEVDATA pdev; ! 285: ULONG iFace; ! 286: HANDLE hFontRes; ! 287: PNTFM pntfm; ! 288: { ! 289: // handle device font case. ! 290: ! 291: if (iFace <= pdev->cDeviceFonts) ! 292: { ! 293: UnlockResource(hFontRes); ! 294: FreeResource(hFontRes); ! 295: } ! 296: else ! 297: HeapFree(pdev->hheap, 0, (PVOID)pntfm); ! 298: ! 299: return; ! 300: }
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