| |
| /* |
| * GDI BiDirectional handling |
| * |
| * Copyright 2003 Shachar Shemesh |
| * |
| * This library is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2.1 of the License, or (at your option) any later version. |
| * |
| * This library 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. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with this library; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| */ |
| |
| #include "config.h" |
| |
| #include <stdarg.h> |
| #ifdef HAVE_UNICODE_UBIDI_H |
| #include <unicode/ubidi.h> |
| #endif |
| |
| #include "windef.h" |
| #include "winbase.h" |
| #include "wingdi.h" |
| #include "wine/debug.h" |
| #include "gdi.h" |
| #include "gdi_private.h" |
| |
| WINE_DEFAULT_DEBUG_CHANNEL(bidi); |
| |
| #ifdef HAVE_ICU |
| BOOL BidiAvail = TRUE; |
| #else |
| BOOL BidiAvail = FALSE; |
| #endif |
| |
| |
| /************************************************************* |
| * BIDI_Reorder |
| */ |
| BOOL BIDI_Reorder( |
| LPCWSTR lpString, /* [in] The string for which information is to be returned */ |
| INT uCount, /* [in] Number of WCHARs in string. */ |
| DWORD dwFlags, /* [in] GetCharacterPlacement compatible flags specifying how to process the string */ |
| DWORD dwWineGCP_Flags, /* [in] Wine internal flags - Force paragraph direction */ |
| LPWSTR lpOutString, /* [out] Reordered string */ |
| INT uCountOut, /* [in] Size of output buffer */ |
| UINT *lpOrder /* [out] Logical -> Visual order map */ |
| ) |
| { |
| #ifdef HAVE_ICU |
| TRACE("%s, %d, 0x%08lx lpOutString=%p, lpOrder=%p\n", |
| debugstr_wn(lpString, uCount), uCount, dwFlags, |
| lpOutString, lpOrder); |
| |
| if ((dwFlags & GCP_REORDER) != 0) { |
| UBiDi *bidi; |
| UErrorCode err=0; |
| UBiDiLevel level=0; |
| |
| bidi=ubidi_open(); |
| if( bidi==NULL ) { |
| WARN("Failed to allocate structure\n"); |
| SetLastError(ERROR_NOT_ENOUGH_MEMORY); |
| return FALSE; |
| } |
| |
| switch( dwWineGCP_Flags&WINE_GCPW_DIR_MASK ) |
| { |
| case WINE_GCPW_FORCE_LTR: |
| level=0; |
| break; |
| case WINE_GCPW_FORCE_RTL: |
| level=1; |
| break; |
| case WINE_GCPW_LOOSE_LTR: |
| level=UBIDI_DEFAULT_LTR; |
| break; |
| case WINE_GCPW_LOOSE_RTL: |
| level=UBIDI_DEFAULT_RTL; |
| break; |
| } |
| |
| ubidi_setPara( bidi, lpString, uCount, level, NULL, &err ); |
| if( lpOutString!=NULL ) { |
| ubidi_writeReordered( bidi, lpOutString, uCount, |
| (dwFlags&GCP_SYMSWAPOFF)?0:UBIDI_DO_MIRRORING, &err ); |
| } |
| |
| if( lpOrder!=NULL ) { |
| ubidi_getLogicalMap( bidi, lpOrder, &err ); |
| } |
| |
| ubidi_close( bidi ); |
| |
| if( U_FAILURE(err) ) { |
| FIXME("ICU Library return error code %d.\n", err ); |
| FIXME("Please report this error to wine-devel@winehq.org so we can place " |
| "descriptive Windows error codes here\n"); |
| SetLastError(ERROR_INVALID_LEVEL); /* This error is cryptic enough not to mean anything, I hope */ |
| |
| return FALSE; |
| } |
| } |
| return TRUE; |
| #else /* HAVE_ICU */ |
| return FALSE; |
| #endif /* HAVE_ICU */ |
| } |