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xwords/xwords4/wince/cedict.c
ehouse 99c4f0b15a dict_getShortName
2004-12-18 01:02:22 +00:00

622 lines
18 KiB
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/* -*-mode: C; fill-column: 78; c-basic-offset: 4;-*- */
/*
* Copyright 1997-2001 by Eric House (fixin@peak.org). All rights reserved.
*
* This program 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; either version 2
* of the License, or (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef STUBBED_DICT
#include "stdafx.h"
#include <commdlg.h>
#include "dictnryp.h"
#include "strutils.h"
#include "cedict.h"
typedef struct CEDictionaryCtxt {
DictionaryCtxt super;
HANDLE mappedFile;
void* mappedBase;
/* size_t dictSize; */
} CEDictionaryCtxt;
static void ce_dict_destroy( DictionaryCtxt* dict );
static XP_UCHAR* ce_dict_getShortName( DictionaryCtxt* dict );
static void ceLoadSpecialData( CEDictionaryCtxt* ctxt, XP_U8** ptrp );
static XP_U16 ceCountSpecials( CEDictionaryCtxt* ctxt );
static XP_Bitmap* ceMakeBitmap( CEDictionaryCtxt* ctxt, XP_U8** ptrp );
static XP_U32 n_ptr_tohl( XP_U8** in );
static XP_U16 n_ptr_tohs( XP_U8** in );
static XP_U8* openMappedFile( wchar_t* name, HANDLE* mappedFileP,
HANDLE* hFileP);
#define ALIGN_COUNT 2
DictionaryCtxt*
ce_dictionary_make( CEAppGlobals* globals, XP_UCHAR* dictName )
{
CEDictionaryCtxt* ctxt = (CEDictionaryCtxt*)NULL;
HANDLE mappedFile = NULL;
ctxt = (CEDictionaryCtxt*)XP_MALLOC(globals->mpool, sizeof(*ctxt));
XP_MEMSET( ctxt, 0, sizeof(*ctxt) );
dict_super_init( (DictionaryCtxt*)ctxt );
MPASSIGN( ctxt->super.mpool, globals->mpool );
if ( !!dictName ) {
wchar_t nameBuf[MAX_PATH+1];
HANDLE hFile;
XP_U8* ptr;
ctxt->super.destructor = ce_dict_destroy;
ctxt->super.func_dict_getShortName = ce_dict_getShortName;
XP_DEBUGF( "looking for dict %s", dictName );
MultiByteToWideChar( CP_ACP, MB_PRECOMPOSED, dictName, -1,
nameBuf, sizeof(nameBuf)/sizeof(nameBuf[0]) );
ptr = openMappedFile( nameBuf, &ctxt->mappedFile, &hFile );
if ( !!ptr ) {
XP_U32 offset;
XP_U16 numFaces;
XP_U16 i;
XP_U16 flags;
XP_U32 dictLength;
ctxt->mappedBase = (void*)ptr;
XP_DEBUGF( "ptr starting at 0x%lx", ptr );
flags = n_ptr_tohs( &ptr );
numFaces = (XP_U16)(*ptr++);
ctxt->super.nFaces = (XP_U8)numFaces;
XP_DEBUGF( "read %d faces from dict", (short)numFaces );
ctxt->super.faces16 =
XP_MALLOC( globals->mpool,
numFaces * sizeof(ctxt->super.faces16[0]) );
#ifdef NODE_CAN_4
if ( flags == 0x0002 ) {
ctxt->super.nodeSize = 3;
} else if ( flags == 0x0003 ) {
ctxt->super.nodeSize = 4;
} else {
XP_DEBUGF( "flags=0x%x", flags );
XP_ASSERT( 0 );
}
ctxt->super.is_4_byte = ctxt->super.nodeSize == 4;
for ( i = 0; i < numFaces; ++i ) {
ctxt->super.faces16[i] = n_ptr_tohs(&ptr);
}
#else
XP_ASSERT( flags == 0x0001 );
for ( i = 0; i < numFaces; ++i ) {
ctxt->super.faces16[i] = (XP_CHAR16)*ptr++;
}
#endif
ctxt->super.countsAndValues =
(XP_U8*)XP_MALLOC(globals->mpool, numFaces*2);
ptr += 2; /* skip xloc header */
XP_DEBUGF( "pre values: ptr now 0x%lx", ptr );
for ( i = 0; i < numFaces*2; i += 2 ) {
ctxt->super.countsAndValues[i] = *ptr++;
ctxt->super.countsAndValues[i+1] = *ptr++;
}
XP_DEBUGF( "post values: ptr now 0x%lx", ptr );
ceLoadSpecialData( ctxt, &ptr );
dictLength = GetFileSize( hFile, NULL );
dictLength -= ptr - (XP_U8*)ctxt->mappedBase;
if ( dictLength > sizeof(XP_U32) ) {
offset = n_ptr_tohl( &ptr );
dictLength -= sizeof(offset);
#ifdef NODE_CAN_4
XP_ASSERT( dictLength % ctxt->super.nodeSize == 0 );
# ifdef DEBUG
ctxt->super.numEdges = dictLength / ctxt->super.nodeSize;
# endif
#else
XP_ASSERT( dictLength % 3 == 0 );
# ifdef DEBUG
ctxt->super.numEdges = dictLength / 3;
# endif
#endif
}
if ( dictLength > 0 ) {
XP_DEBUGF( "setting topEdge; offset = %ld", offset );
ctxt->super.base = (array_edge*)ptr;
#ifdef NODE_CAN_4
ctxt->super.topEdge = ctxt->super.base
+ (offset * ctxt->super.nodeSize);
#else
ctxt->super.topEdge = ctxt->super.base + (offset * 3);
#endif
} else {
ctxt->super.topEdge = (array_edge*)NULL;
ctxt->super.base = (array_edge*)NULL;
}
}
setBlankTile( (DictionaryCtxt*)ctxt );
ctxt->super.name = copyString(MPPARM(globals->mpool) dictName);
}
return (DictionaryCtxt*)ctxt;
} /* ce_dictionary_make */
static void
ceLoadSpecialData( CEDictionaryCtxt* ctxt, XP_U8** ptrp )
{
XP_U16 nSpecials = ceCountSpecials( ctxt );
XP_U8* ptr = *ptrp;
Tile i;
XP_UCHAR** texts;
SpecialBitmaps* bitmaps;
XP_DEBUGF( "loadSpecialData: there are %d specials", nSpecials );
texts = (XP_UCHAR**)XP_MALLOC( ctxt->super.mpool,
nSpecials * sizeof(*texts) );
bitmaps = (SpecialBitmaps*)
XP_MALLOC( ctxt->super.mpool, nSpecials * sizeof(*bitmaps) );
for ( i = 0; i < ctxt->super.nFaces; ++i ) {
XP_CHAR16 face = ctxt->super.faces16[(short)i];
if ( IS_SPECIAL(face) ) {
/* get the string */
XP_U8 txtlen = *ptr++;
XP_UCHAR* text = (XP_UCHAR*)XP_MALLOC(ctxt->super.mpool, txtlen+1);
XP_MEMCPY( text, ptr, txtlen );
ptr += txtlen;
text[txtlen] = '\0';
XP_ASSERT( face < nSpecials );
texts[face] = text;
XP_DEBUGF( "making bitmaps for %s", texts[face] );
bitmaps[face].largeBM = ceMakeBitmap( ctxt, &ptr );
bitmaps[face].smallBM = ceMakeBitmap( ctxt, &ptr );
}
}
ctxt->super.chars = texts;
ctxt->super.bitmaps = bitmaps;
*ptrp = ptr;
} /* ceLoadSpecialData */
static XP_U16
ceCountSpecials( CEDictionaryCtxt* ctxt )
{
XP_U16 result = 0;
XP_U16 i;
for ( i = 0; i < ctxt->super.nFaces; ++i ) {
if ( IS_SPECIAL(ctxt->super.faces16[i] ) ) {
++result;
}
}
return result;
} /* ceCountSpecials */
static void
printBitmapData1( XP_U16 nCols, XP_U16 nRows, XP_U8* data )
{
char strs[20];
XP_U16 rowBytes;
XP_U16 row, col;
rowBytes = (nCols + 7) / 8;
while ( (rowBytes % 2) != 0 ) {
++rowBytes;
}
XP_DEBUGF( " printBitmapData (%dx%d):", nCols, nRows );
for ( row = 0; row < nRows; ++row ) {
for ( col = 0; col < nCols; ++col ) {
XP_UCHAR byt = data[col / 8];
XP_Bool set = (byt & (0x80 >> (col % 8))) != 0;
strs[col] = set? '#': '.';
}
data += rowBytes;
strs[nCols] = '\0';
XP_DEBUGF( strs );
}
XP_DEBUGF( " printBitmapData done" );
} /* printBitmapData1 */
static void
printBitmapData2( XP_U16 nCols, XP_U16 nRows, XP_U8* data )
{
XP_DEBUGF( " printBitmapData (%dx%d):", nCols, nRows );
while ( nRows-- ) {
XP_UCHAR buf[100];
XP_UCHAR* ptr = buf;
XP_U16 rowBytes = (nCols + 7) / 8;
while ( (rowBytes % ALIGN_COUNT) != 0 ) {
++rowBytes;
}
while ( rowBytes-- ) {
ptr += XP_SNPRINTF( ptr, sizeof(buf), "0x%.2x ", *data++ );
}
XP_DEBUGF( buf );
}
XP_DEBUGF( " printBitmapData done" );
} /* printBitmapData2 */
#if 0
static void
longSwapData( XP_U8* destBase, XP_U16 nRows, XP_U16 rowBytes )
{
XP_U32* longBase = (XP_U32*)destBase;
rowBytes /= 4;
while ( nRows-- ) {
XP_U16 i;
for ( i = 0; i < rowBytes; ++i ) {
XP_U32 n = *longBase;
XP_U32 tmp = 0;
tmp |= (n >> 24) & 0x000000FF;
tmp |= (n >> 16) & 0x0000FF00;
tmp |= (n >> 8 ) & 0x00FF0000;
tmp |= (n >> 0 ) & 0xFF000000;
*longBase = tmp;
++longBase;
}
}
} /* longSwapData */
#endif
static XP_Bitmap*
ceMakeBitmap( CEDictionaryCtxt* ctxt, XP_U8** ptrp )
{
XP_U8* ptr = *ptrp;
XP_U8 nCols = *ptr++;
CEBitmapInfo* bitmap = (CEBitmapInfo*)NULL;
if ( nCols > 0 ) {
XP_U8* dest;
XP_U8* savedDest;
XP_U8 nRows = *ptr++;
XP_U16 rowBytes = (nCols+7) / 8;
XP_U8 srcByte = 0;
XP_U8 destByte = 0;
XP_U8 nBits;
XP_U16 i;
bitmap = (CEBitmapInfo*)XP_MALLOC( ctxt->super.mpool,
sizeof(bitmap) );
bitmap->nCols = nCols;
bitmap->nRows = nRows;
dest = XP_MALLOC( ctxt->super.mpool, rowBytes * nRows );
bitmap->bits = savedDest = dest;
nBits = nRows * nCols;
for ( i = 0; i < nBits; ++i ) {
XP_U8 srcBitIndex = i % 8;
XP_U8 destBitIndex = (i % nCols) % 8;
XP_U8 srcMask, bit;
if ( srcBitIndex == 0 ) {
srcByte = *ptr++;
}
srcMask = 1 << (7 - srcBitIndex);
bit = (srcByte & srcMask) != 0;
destByte |= bit << (7 - destBitIndex);
/* we need to put the byte if we've filled it or if we're done
with the row */
if ( (destBitIndex==7) || ((i%nCols) == (nCols-1)) ) {
*dest++ = destByte;
destByte = 0;
}
}
printBitmapData1( nCols, nRows, savedDest );
printBitmapData2( nCols, nRows, savedDest );
}
*ptrp = ptr;
return (XP_Bitmap*)bitmap;
} /* ceMakeBitmap */
static void
ce_dict_destroy( DictionaryCtxt* dict )
{
CEDictionaryCtxt* ctxt = (CEDictionaryCtxt*)dict;
XP_U16 nSpecials = ceCountSpecials( ctxt );
XP_U16 i;
if ( !!ctxt->super.chars ) {
for ( i = 0; i < nSpecials; ++i ) {
XP_UCHAR* text = ctxt->super.chars[i];
if ( !!text ) {
XP_FREE( ctxt->super.mpool, text );
}
}
XP_FREE( ctxt->super.mpool, ctxt->super.chars );
}
if ( !!ctxt->super.bitmaps ) {
for ( i = 0; i < nSpecials; ++i ) {
HBITMAP bitmap = (HBITMAP)ctxt->super.bitmaps[i].largeBM;
if ( !!bitmap ) {
DeleteObject( bitmap );
}
bitmap = (HBITMAP)ctxt->super.bitmaps[i].smallBM;
if ( !!bitmap ) {
DeleteObject( bitmap );
}
}
XP_FREE( ctxt->super.mpool, ctxt->super.bitmaps );
}
XP_FREE( ctxt->super.mpool, ctxt->super.faces16 );
UnmapViewOfFile( ctxt->mappedBase );
CloseHandle( ctxt->mappedFile );
XP_FREE( ctxt->super.mpool, ctxt );
} // ce_dict_destroy
static XP_UCHAR*
ce_dict_getShortName( DictionaryCtxt* dict )
{
XP_UCHAR* name = dict_getName( dict );
return bname( name );
} /* ce_dict_getShortName */
XP_Bool
ce_pickDictFile( CEAppGlobals* globals, XP_UCHAR* buf, XP_U16 bufLen )
{
XP_Bool result = XP_FALSE;
wchar_t nameBuf[256];
OPENFILENAME openFileStruct;
XP_MEMSET( &openFileStruct, 0, sizeof(openFileStruct) );
XP_MEMSET( nameBuf, 0, sizeof(nameBuf) );
openFileStruct.lStructSize = sizeof(openFileStruct);
openFileStruct.hwndOwner = globals->hWnd;
openFileStruct.lpstrFilter = L"Crosswords dictionaries" L"\0"
L"*.xwd" L"\0\0";
openFileStruct.Flags = OFN_FILEMUSTEXIST
| OFN_HIDEREADONLY
| OFN_PATHMUSTEXIST;
openFileStruct.lpstrFile = nameBuf;
openFileStruct.nMaxFile = sizeof(nameBuf)/sizeof(nameBuf[0]);
if ( GetOpenFileName( &openFileStruct ) ) {
XP_U16 len;
XP_UCHAR multiBuf[256];
len = WideCharToMultiByte( CP_ACP, 0, nameBuf, wcslen(nameBuf),
multiBuf,
sizeof(multiBuf), NULL, NULL );
if ( len > 0 && len < bufLen ) {
multiBuf[len] = '\0';
len = (XP_U16)XP_STRLEN( multiBuf );
XP_MEMCPY( buf, multiBuf, len );
buf[len] = '\0';
result = XP_TRUE;
}
}
return result;
} /* ce_pickDictFile */
static XP_U8*
openMappedFile( wchar_t* name, HANDLE* mappedFileP, HANDLE* hFileP )
{
XP_U8* ptr = NULL;
HANDLE mappedFile = NULL;
HANDLE hFile;
hFile = CreateFileForMapping( name,
GENERIC_READ,
FILE_SHARE_READ, /* (was 0: no sharing) */
NULL, /* security */
OPEN_EXISTING,
FILE_FLAG_RANDOM_ACCESS,
NULL );
if ( hFile == INVALID_HANDLE_VALUE ) {
XP_DEBUGF( "open file failed: %ld", GetLastError() );
} else {
HANDLE mappedFile;
XP_DEBUGF( "open file succeeded!!!!" );
mappedFile = CreateFileMapping( hFile,
NULL,
PAGE_READONLY,
0,
0,
NULL );
if ( mappedFile != INVALID_HANDLE_VALUE ) {
void* mappedBase = MapViewOfFile( mappedFile,
FILE_MAP_READ,
0, 0, 0 );
ptr = (XP_U8*)mappedBase;
*mappedFileP = mappedFile;
*hFileP = hFile;
}
}
return ptr;
} /* openMappedFile */
static XP_Bool
checkIfDictAndLegal( wchar_t* path, XP_U16 pathLen, WIN32_FIND_DATA* data )
{
XP_Bool result = XP_FALSE;
wchar_t* name = data->cFileName;
XP_U16 len;
len = wcslen(name);
/* are the last four bytes ".xwd"? */
if ( 0 == lstrcmp( name + len - 4, L".xwd" ) ) {
XP_U16 flags;
HANDLE mappedFile, hFile;
XP_U8* base;
wchar_t pathBuf[257];
XP_LOGF( "ends in .xwd" );
wcscpy( pathBuf, path );
pathBuf[pathLen] = 0;
wcscat( pathBuf, name );
base = openMappedFile( pathBuf, &mappedFile, &hFile );
if ( !!base ) {
XP_U8* ptr = base;
flags = n_ptr_tohs( &ptr );
XP_LOGF( "flags=0x%x", flags );
UnmapViewOfFile( base );
CloseHandle( mappedFile );
#ifdef NODE_CAN_4
/* are the flags what we expect */
result = flags == 0x0002 || flags == 0x0003;
#else
result = flags == 0x0001;
#endif
}
}
return result;
} /* checkIfDictAndLegal */
static XP_Bool
locateOneDir( wchar_t* path, XP_U16* which )
{
WIN32_FIND_DATA data;
HANDLE fileH;
XP_Bool result = XP_FALSE;
XP_U16 startLen;
lstrcat( path, L"\\" );
startLen = wcslen(path); /* record where we were so can back up */
lstrcat( path, L"*" );
XP_MEMSET( &data, 0, sizeof(data) );
/* Looks like I need to look at every file. If it's a directory I search
it recursively. If it's an .xwd file I check whether it's got the
right flags and if so I return its name. */
fileH = FindFirstFile( path, &data );
if ( fileH != INVALID_HANDLE_VALUE ) {
for ( ; ; ) {
if ( (data.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) != 0 ) {
lstrcpy( path+startLen, data.cFileName );
result = locateOneDir( path, which );
if ( result ) {
break;
}
path[startLen] = 0;
} else if ( checkIfDictAndLegal( path, startLen, &data )
&& (*which-- == 0)) {
/* we're done! */
lstrcpy( path+startLen, data.cFileName );
result = XP_TRUE;
break;
}
if ( !FindNextFile( fileH, &data ) ) {
XP_ASSERT( GetLastError() == ERROR_NO_MORE_FILES );
break;
}
}
(void)FindClose( fileH );
}
return result;
} /* locateOneDir */
XP_UCHAR*
ceLocateNthDict( MPFORMAL XP_U16 which )
{
wchar_t pathBuf[257];
XP_UCHAR* result = NULL;
pathBuf[0] = 0;
if ( locateOneDir( pathBuf, &which ) ) {
XP_U16 len = wcslen( pathBuf );
result = XP_MALLOC( mpool, len + 1 );
len = WideCharToMultiByte( CP_ACP, 0, pathBuf, len + 1,
result, len + 1, NULL, NULL );
}
return result;
} /* ceLocateNthDict */
static XP_U32
n_ptr_tohl( XP_U8** inp )
{
XP_U32 t;
XP_MEMCPY( &t, *inp, sizeof(t) );
*inp += sizeof(t);
return XP_NTOHL(t);
} /* n_ptr_tohl */
static XP_U16
n_ptr_tohs( XP_U8** inp )
{
XP_U16 t;
XP_MEMCPY( &t, *inp, sizeof(t) );
*inp += sizeof(t);
return XP_NTOHS(t);
} /* n_ptr_tohs */
XP_UCHAR*
bname( XP_UCHAR* in )
{
XP_U16 len = (XP_U16)XP_STRLEN(in);
XP_UCHAR* out = in + len - 1;
while ( *out != '\\' && out >= in ) {
--out;
}
return out + 1;
} /* bname */
#endif /* ifndef STUBBED_DICT */
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