Source code of Windows XP (NT5)
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/*++
Copyright (c) 1990-1999 Microsoft Corporation, All Rights Reserved
Module Name:
CHCAND.c
++*/
#include <windows.h>
#include <immdev.h>
#include "imeattr.h"
#include "imedefs.h"
#include "uniime.h"
#if !defined(ROMANIME)
/**********************************************************************/
/* PhrasePredition() */
/* Return vlaue */
/* the number of candidates in the candidate list */
/**********************************************************************/
UINT PASCAL PhrasePrediction( // predict Chinese word(s) by searching
// phrase data base
#if defined(UNIIME)
LPIMEL lpImeL,
#endif
LPINPUTCONTEXT lpIMC,
LPCOMPOSITIONSTRING lpCompStr,
LPPRIVCONTEXT lpImcP)
{
LPCANDIDATEINFO lpCandInfo;
LPCANDIDATELIST lpCandList;
DWORD dwStartLen, dwEndLen;
UINT nCand;
if (!lpCompStr) {
return (0);
}
if ((lpIMC->fdwConversion & (IME_CMODE_NATIVE|IME_CMODE_EUDC|
IME_CMODE_SYMBOL)) != IME_CMODE_NATIVE) {
// should not do phrase prediction, if not under IME_CMODE_NATIVE
return (0);
}
//if ((WORD)lpIMC->fdwSentence != IME_SMODE_PHRASEPREDICT) {
if (!(lpIMC->fdwSentence & IME_SMODE_PHRASEPREDICT)) {
// should not do phrase prediction, if not under IME_SMODE_PHRASEPREDICT
return (0);
}
if (!lpIMC->hCandInfo) {
return (0);
}
lpCandInfo = (LPCANDIDATEINFO)ImmLockIMCC(lpIMC->hCandInfo);
if (!lpCandInfo) {
return (0);
}
lpCandList = (LPCANDIDATELIST)
((LPBYTE)lpCandInfo + lpCandInfo->dwOffset[0]);
// ImeToAsciiEx will call into this function, so we need to init again
lpCandList->dwCount = 0;
// default start from 0
lpCandList->dwPageStart = lpCandList->dwSelection = 0;
dwStartLen = sizeof(WCHAR) / sizeof(TCHAR);
dwEndLen = (UINT)-1;
// one day may be this API can accept bo po mo fo as aid information
// so we pass the ResultReadStr for Phonetic
// one DBCS char may have two pronounciations but when it is in a
// phrase it may only use one pronounciation of them
UniSearchPhrasePrediction(lpImeL, NATIVE_CP,
(LPTSTR)((LPBYTE)lpCompStr + lpCompStr->dwResultStrOffset),
lpCompStr->dwResultStrLen,
#if defined(PHON)
(LPTSTR)((LPBYTE)lpCompStr + lpCompStr->dwResultReadStrOffset),
lpCompStr->dwResultReadStrLen,
#else
NULL, 0,
#endif
dwStartLen, dwEndLen, (UINT)-1, lpCandList);
// how many strings we got?
nCand = lpCandList->dwCount;
if (nCand == 0) {
lpCandInfo->dwCount = 0;
lpImcP->fdwImeMsg = (lpImcP->fdwImeMsg | MSG_CLOSE_CANDIDATE) &
~(MSG_OPEN_CANDIDATE|MSG_CHANGE_CANDIDATE);
goto PhPrUnlockCandInfo;
}
// for showing phrase prediction string(s)
lpCandInfo->dwCount = 1;
// open composition candidate UI window for the string(s)
if (lpImcP->fdwImeMsg & MSG_ALREADY_OPEN) {
lpImcP->fdwImeMsg = (lpImcP->fdwImeMsg | MSG_CHANGE_CANDIDATE) &
~(MSG_CLOSE_CANDIDATE);
} else {
lpImcP->fdwImeMsg = (lpImcP->fdwImeMsg | MSG_OPEN_CANDIDATE) &
~(MSG_CLOSE_CANDIDATE);
}
PhPrUnlockCandInfo:
ImmUnlockIMCC(lpIMC->hCandInfo);
return (nCand);
}
/**********************************************************************/
/* SelectOneCand() */
/**********************************************************************/
void PASCAL SelectOneCand(
#if defined(UNIIME)
LPIMEL lpImeL,
#endif
HIMC hIMC,
LPINPUTCONTEXT lpIMC,
LPCOMPOSITIONSTRING lpCompStr,
LPPRIVCONTEXT lpImcP,
LPCANDIDATELIST lpCandList)
{
DWORD dwCompStrLen;
DWORD dwReadClauseLen, dwReadStrLen;
LPTSTR lpSelectStr;
LPGUIDELINE lpGuideLine;
if (!lpCompStr) {
MessageBeep((UINT)-1);
return;
}
if (!lpImcP) {
MessageBeep((UINT)-1);
return;
}
// backup the dwCompStrLen, this value decide whether
// we go for phrase prediction
dwCompStrLen = lpCompStr->dwCompStrLen;
// backup the value, this value will be destroyed in InitCompStr
dwReadClauseLen = lpCompStr->dwCompReadClauseLen;
dwReadStrLen = lpCompStr->dwCompReadStrLen;
lpSelectStr = (LPTSTR)((LPBYTE)lpCandList + lpCandList->dwOffset[
lpCandList->dwSelection]);
InitCompStr(lpCompStr);
if (lpIMC->fdwConversion & IME_CMODE_SYMBOL) {
ImmSetConversionStatus(hIMC,
lpIMC->fdwConversion & ~(IME_CMODE_SYMBOL),
lpIMC->fdwSentence);
}
// the result reading clause = compsotion reading clause
CopyMemory((LPBYTE)lpCompStr + lpCompStr->dwResultReadClauseOffset,
(LPBYTE)lpCompStr + lpCompStr->dwCompReadClauseOffset,
dwReadClauseLen * sizeof(TCHAR) + sizeof(TCHAR));
lpCompStr->dwResultReadClauseLen = dwReadClauseLen;
// the result reading string = compsotion reading string
CopyMemory((LPBYTE)lpCompStr + lpCompStr->dwResultReadStrOffset,
(LPBYTE)lpCompStr + lpCompStr->dwCompReadStrOffset,
dwReadStrLen * sizeof(TCHAR) + sizeof(TCHAR));
lpCompStr->dwResultReadStrLen = dwReadStrLen;
// calculate result string length
lpCompStr->dwResultStrLen = lstrlen(lpSelectStr);
// the result string = the selected candidate;
CopyMemory((LPBYTE)lpCompStr + lpCompStr->dwResultStrOffset, lpSelectStr,
lpCompStr->dwResultStrLen * sizeof(TCHAR) + sizeof(TCHAR));
lpCompStr->dwResultClauseLen = 2 * sizeof(DWORD);
*(LPDWORD)((LPBYTE)lpCompStr + lpCompStr->dwResultClauseOffset +
sizeof(DWORD)) = lpCompStr->dwResultStrLen;
// tell application, there is a reslut string
lpImcP->fdwImeMsg |= MSG_COMPOSITION;
lpImcP->dwCompChar = (DWORD) 0;
lpImcP->fdwGcsFlag |= GCS_COMPREAD|GCS_COMP|GCS_CURSORPOS|
GCS_DELTASTART|GCS_RESULTREAD|GCS_RESULT;
if (lpImcP->fdwImeMsg & MSG_ALREADY_OPEN) {
lpImcP->fdwImeMsg = (lpImcP->fdwImeMsg | MSG_CLOSE_CANDIDATE) &
~(MSG_OPEN_CANDIDATE|MSG_CHANGE_CANDIDATE);
} else {
lpImcP->fdwImeMsg &= ~(MSG_CLOSE_CANDIDATE|MSG_OPEN_CANDIDATE);
}
// no candidate now, the right candidate string already be finalized
lpCandList->dwCount = 0;
lpImcP->iImeState = CST_INIT;
*(LPDWORD)lpImcP->bSeq = 0;
#if defined(CHAJEI) || defined(QUICK) || defined(WINAR30) || defined(UNIIME)
*(LPDWORD)&lpImcP->bSeq[4] = 0;
#endif
//if ((WORD)lpIMC->fdwSentence != IME_SMODE_PHRASEPREDICT) {
if (!(lpIMC->fdwSentence & IME_SMODE_PHRASEPREDICT)) {
// not in phrase prediction mode
} else if (!dwCompStrLen) {
} else if (lpCompStr->dwResultStrLen != sizeof(WCHAR) / sizeof(TCHAR)) {
} else {
// we only predict when we have composition string before and
// result string is one DBCS char
PhrasePrediction(
#if defined(UNIIME)
lpImeL,
#endif
lpIMC, lpCompStr, lpImcP);
}
if (!lpCandList->dwCount) {
if (lpImcP->fdwImeMsg & MSG_ALREADY_START) {
lpImcP->fdwImeMsg = (lpImcP->fdwImeMsg | MSG_END_COMPOSITION) &
~(MSG_START_COMPOSITION);
} else {
lpImcP->fdwImeMsg &= ~(MSG_END_COMPOSITION|MSG_START_COMPOSITION);
}
}
if (!lpImeL->hRevKL) {
return;
}
if (lpCompStr->dwResultStrLen != sizeof(WCHAR) / sizeof(TCHAR)) {
// we only can reverse convert one DBCS character for now
if (lpImcP->fdwImeMsg & MSG_GUIDELINE) {
return;
}
}
lpGuideLine = ImmLockIMCC(lpIMC->hGuideLine);
if (!lpGuideLine) {
return;
}
if (lpCompStr->dwResultStrLen != sizeof(WCHAR) / sizeof(TCHAR)) {
// we only can reverse convert one DBCS character for now
lpGuideLine->dwLevel = GL_LEVEL_NOGUIDELINE;
lpGuideLine->dwIndex = GL_ID_UNKNOWN;
} else {
TCHAR szStrBuf[4];
UINT uSize;
*(LPDWORD)szStrBuf = 0;
*(LPWSTR)szStrBuf = *(LPWSTR)((LPBYTE)lpCompStr +
lpCompStr->dwResultStrOffset);
uSize = ImmGetConversionList(lpImeL->hRevKL, (HIMC)NULL, szStrBuf,
(LPCANDIDATELIST)((LPBYTE)lpGuideLine + lpGuideLine->dwPrivateOffset),
lpGuideLine->dwPrivateSize, GCL_REVERSECONVERSION);
if (uSize) {
lpGuideLine->dwLevel = GL_LEVEL_INFORMATION;
lpGuideLine->dwIndex = GL_ID_REVERSECONVERSION;
lpImcP->fdwImeMsg |= MSG_GUIDELINE;
if (lpImcP->fdwImeMsg & MSG_ALREADY_START) {
lpImcP->fdwImeMsg &= ~(MSG_END_COMPOSITION|
MSG_START_COMPOSITION);
} else {
lpImcP->fdwImeMsg = (lpImcP->fdwImeMsg|
MSG_START_COMPOSITION) & ~(MSG_END_COMPOSITION);
}
} else {
lpGuideLine->dwLevel = GL_LEVEL_NOGUIDELINE;
lpGuideLine->dwIndex = GL_ID_UNKNOWN;
}
}
ImmUnlockIMCC(lpIMC->hGuideLine);
return;
}
/**********************************************************************/
/* CandEscapeKey() */
/**********************************************************************/
void PASCAL CandEscapeKey(
LPINPUTCONTEXT lpIMC,
LPPRIVCONTEXT lpImcP)
{
LPCOMPOSITIONSTRING lpCompStr;
LPGUIDELINE lpGuideLine;
// clean all candidate information
if (lpImcP->fdwImeMsg & MSG_ALREADY_OPEN) {
ClearCand(lpIMC);
lpImcP->fdwImeMsg = (lpImcP->fdwImeMsg | MSG_CLOSE_CANDIDATE) &
~(MSG_OPEN_CANDIDATE|MSG_CHANGE_CANDIDATE);
} else if (lpImcP->fdwImeMsg & MSG_OPEN_CANDIDATE) {
ClearCand(lpIMC);
lpImcP->fdwImeMsg &= ~(MSG_OPEN_CANDIDATE|MSG_CHANGE_CANDIDATE);
} else {
}
lpImcP->iImeState = CST_INPUT;
// if it start composition, we need to clean composition
if (!(lpImcP->fdwImeMsg & (MSG_ALREADY_START|MSG_START_COMPOSITION))) {
return;
}
lpCompStr = (LPCOMPOSITIONSTRING)ImmLockIMCC(lpIMC->hCompStr);
lpGuideLine = (LPGUIDELINE)ImmLockIMCC(lpIMC->hGuideLine);
CompEscapeKey(lpIMC, lpCompStr, lpGuideLine, lpImcP);
ImmUnlockIMCC(lpIMC->hGuideLine);
ImmUnlockIMCC(lpIMC->hCompStr);
return;
}
/**********************************************************************/
/* ChooseCand() */
/**********************************************************************/
void PASCAL ChooseCand( // choose one of candidate strings by
// input char
#if defined(UNIIME)
LPINSTDATAL lpInstL,
LPIMEL lpImeL,
#endif
WORD wCharCode,
HIMC hIMC,
LPINPUTCONTEXT lpIMC,
LPCANDIDATEINFO lpCandInfo,
LPPRIVCONTEXT lpImcP)
{
LPCANDIDATELIST lpCandList;
LPCOMPOSITIONSTRING lpCompStr;
LPGUIDELINE lpGuideLine;
#if defined(PHON)
WORD wStandardChar;
char cIndex;
#endif
if (wCharCode == VK_ESCAPE) { // escape key
CandEscapeKey(lpIMC, lpImcP);
return;
}
if (!lpCandInfo) {
MessageBeep((UINT)-1);
return;
}
if (!lpCandInfo->dwCount) {
MessageBeep((UINT)-1);
return;
}
lpCandList = (LPCANDIDATELIST)
((LPBYTE)lpCandInfo + lpCandInfo->dwOffset[0]);
#if defined(WINAR30)
if (wCharCode == CHOOSE_CIRCLE) { // circle selection
if (lpCandList->dwCount <= lpCandList->dwPageSize) {
wCharCode = lpImeL->wCandStart;
}
}
#endif
if (wCharCode == CHOOSE_CIRCLE) { // circle selection
lpCandList->dwPageStart = lpCandList->dwSelection =
lpCandList->dwSelection + lpCandList->dwPageSize;
if (lpCandList->dwSelection >= lpCandList->dwCount) {
// no more candidates, restart it!
lpCandList->dwPageStart = lpCandList->dwSelection = 0;
MessageBeep((UINT)-1);
}
// inform UI, dwSelectedCand is changed
lpImcP->fdwImeMsg |= MSG_CHANGE_CANDIDATE;
return;
}
if (wCharCode == CHOOSE_NEXTPAGE) { // next selection
lpCandList->dwPageStart = lpCandList->dwSelection =
lpCandList->dwSelection + lpCandList->dwPageSize;
if (lpCandList->dwSelection >= lpCandList->dwCount) {
// no more candidates, restart it!
lpCandList->dwPageStart = lpCandList->dwSelection = 0;
MessageBeep((UINT)-1);
}
// inform UI, dwSelectedCand is changed
lpImcP->fdwImeMsg |= MSG_CHANGE_CANDIDATE;
return;
}
if (wCharCode == CHOOSE_PREVPAGE) { // previous selection
if (!lpCandList->dwSelection) {
MessageBeep((UINT)-1);
return;
}
// maybe we can not use this size, it totally depend on
// whether the application draw UI by itself
if (lpImeL->fdwModeConfig & MODE_CONFIG_OFF_CARET_UI) {
lpImcP->dwPrevPageStart = lpCandList->dwPageStart;
lpImcP->fdwImeMsg |= MSG_IMN_PAGEUP;
}
if (lpCandList->dwSelection < lpCandList->dwPageSize) {
lpCandList->dwPageStart = lpCandList->dwSelection = 0;
} else {
lpCandList->dwPageStart = lpCandList->dwSelection =
lpCandList->dwSelection - lpCandList->dwPageSize;
}
// inform UI, dwSelectedCand is changed
lpImcP->fdwImeMsg |= MSG_CHANGE_CANDIDATE;
return;
}
if (wCharCode == CHOOSE_HOME) { // home selection
if (lpCandList->dwSelection == 0) {
MessageBeep((UINT)-1); // already home!
return;
}
lpCandList->dwPageStart = lpCandList->dwSelection = 0;
// inform UI, dwSelectedCand is changed
lpImcP->fdwImeMsg |= MSG_CHANGE_CANDIDATE;
return;
}
if ((wCharCode >= 0 + lpImeL->wCandRangeStart) && (wCharCode <= 9)) {
// dayi starts from 0, CandRangeStart == 0
// array starts from 1, CandPerPage == 10
DWORD dwSelection;
// choose one candidate from the candidate list
dwSelection = lpCandList->dwSelection + (wCharCode +
lpImeL->wCandPerPage - lpImeL->wCandStart) %
lpImeL->wCandPerPage;
if (dwSelection >= lpCandList->dwCount) {
// out of range
MessageBeep((UINT)-1);
return;
}
// one candidate is selected by 1, 2, or 3 ...
#if defined(WINAR30)
if (!*(LPWSTR)((LPBYTE)lpCandList + lpCandList->dwOffset[
dwSelection])) {
MessageBeep((UINT)-1);
return;
}
#endif
lpCandList->dwSelection = dwSelection;
lpCompStr = (LPCOMPOSITIONSTRING)ImmLockIMCC(lpIMC->hCompStr);
// translate into translate buffer
SelectOneCand(
#if defined(UNIIME)
lpImeL,
#endif
hIMC, lpIMC, lpCompStr, lpImcP, lpCandList);
ImmUnlockIMCC(lpIMC->hCompStr);
return;
}
#if defined(UNIIME)
if (!lpInstL) {
MessageBeep((UINT)-1);
return;
}
#endif
// don't select by choose key, the 1st candidate is default selected
// candidate string is decided but we also need to decide the
// composition string for this input
#if defined(PHON)
// this check only useful in IBM and other layout
wStandardChar = bUpper[wCharCode - ' '];
// even for ETen 26 Keys, this is OK we don't need to access ETen2ndLayout
wStandardChar = bStandardLayout[lpImeL->nReadLayout][wStandardChar - ' '];
cIndex = cIndexTable[wStandardChar - ' '];
if (cIndex >= 3) {
MessageBeep((UINT)-1);
return;
}
#endif
lpCompStr = (LPCOMPOSITIONSTRING)ImmLockIMCC(lpIMC->hCompStr);
lpGuideLine = (LPGUIDELINE)ImmLockIMCC(lpIMC->hGuideLine);
// translate into translate buffer
SelectOneCand(
#if defined(UNIIME)
lpImeL,
#endif
hIMC, lpIMC, lpCompStr, lpImcP, lpCandList);
// don't phrase prediction under this case
if (lpImcP->fdwImeMsg & MSG_ALREADY_OPEN) {
lpImcP->fdwImeMsg = (lpImcP->fdwImeMsg | MSG_CLOSE_CANDIDATE) &
~(MSG_OPEN_CANDIDATE|MSG_CHANGE_CANDIDATE);
} else {
lpImcP->fdwImeMsg &= ~(MSG_CLOSE_CANDIDATE|MSG_OPEN_CANDIDATE);
}
CompWord(
#if defined(UNIIME)
lpInstL, lpImeL,
#endif
wCharCode, hIMC, lpIMC, lpCompStr, lpGuideLine, lpImcP);
if (lpGuideLine) {
ImmUnlockIMCC(lpIMC->hGuideLine);
}
if (lpCompStr) {
ImmUnlockIMCC(lpIMC->hCompStr);
}
return;
}
#if defined(WINAR30) || defined(DAYI)
/**********************************************************************/
/* SearchSymbol */
/**********************************************************************/
void PASCAL SearchSymbol( // serach symbol characters
WORD wSymbolSet,
HIMC hIMC,
LPINPUTCONTEXT lpIMC,
LPPRIVCONTEXT lpImcP)
{
LPCANDIDATEINFO lpCandInfo;
LPCANDIDATELIST lpCandList;
UINT i;
if ((lpIMC->fdwConversion & (IME_CMODE_NATIVE|IME_CMODE_EUDC|
IME_CMODE_SYMBOL)) != (IME_CMODE_NATIVE|IME_CMODE_SYMBOL)) {
return;
}
if (!lpIMC->hCandInfo) {
return;
}
lpCandInfo = (LPCANDIDATEINFO)ImmLockIMCC(lpIMC->hCandInfo);
if (!lpCandInfo) {
return;
}
lpCandList = (LPCANDIDATELIST)
((LPBYTE)lpCandInfo + lpCandInfo->dwOffset[0]);
lpCandList->dwCount = 0;
#if defined(DAYI)
if (wSymbolSet >= 'A' && wSymbolSet <= 'Z') {
AddCodeIntoCand(lpCandList, sImeG.wFullABC[wSymbolSet - ' ']);
} else if (wSymbolSet >= 'a' && wSymbolSet <= 'z') {
AddCodeIntoCand(lpCandList, sImeG.wFullABC[wSymbolSet - ' ']);
} else {
#endif
#if defined(WINAR30)
{
#endif
for (i = 0; i < sizeof(lpImeL->wSymbol) / sizeof(WORD); i++) {
if (lpImeL->wSymbol[i] == wSymbolSet) {
break;
}
}
if (++i < sizeof(lpImeL->wSymbol) / sizeof(WORD)) {
for (; lpImeL->wSymbol[i] > 0x007F; i++) {
AddCodeIntoCand(lpCandList, lpImeL->wSymbol[i]);
}
}
}
if (!lpCandList->dwCount) {
ImmSetConversionStatus(hIMC,
lpIMC->fdwConversion & ~(IME_CMODE_SYMBOL),
lpIMC->fdwSentence);
CompCancel(hIMC, lpIMC);
Select(
#if defined(UNIIME)
lpImeL,
#endif
lpIMC, TRUE);
} else if (lpCandList->dwCount == 1) {
LPCOMPOSITIONSTRING lpCompStr;
lpCompStr = (LPCOMPOSITIONSTRING)ImmLockIMCC(lpIMC->hCompStr);
if (lpCompStr) {
SelectOneCand(hIMC, lpIMC, lpCompStr, lpImcP, lpCandList);
ImmUnlockIMCC(lpIMC->hCompStr);
}
} else {
lpCandInfo->dwCount = 1;
if (lpImcP->fdwImeMsg & MSG_ALREADY_OPEN) {
lpImcP->fdwImeMsg = (lpImcP->fdwImeMsg | MSG_CHANGE_CANDIDATE) &
~(MSG_CLOSE_CANDIDATE);
} else {
lpImcP->fdwImeMsg = (lpImcP->fdwImeMsg | MSG_OPEN_CANDIDATE) &
~(MSG_CLOSE_CANDIDATE);
}
lpImcP->iImeState = CST_CHOOSE;
}
ImmUnlockIMCC(lpIMC->hCandInfo);
}
#endif // defined(WINAR30) || defined(DAYI)
#endif // !defined(ROMANIME)