/** @brief Enter choice mode and relating initialisations. */
int ChoiceFirstAvail( ChewingData *pgdata )
{
/* save old cursor position */
pgdata->choiceInfo.oldChiSymbolCursor = pgdata->chiSymbolCursor;
/* see if there is some word in the cursor position */
if ( pgdata->chiSymbolBufLen == pgdata->chiSymbolCursor ) {
if ( pgdata->config.bPhraseChoiceRearward )
pgdata->chiSymbolCursor = pgdata->preferInterval[ pgdata->nPrefer - 1 ].from + CountSymbols( pgdata, pgdata->chiSymbolBufLen );
else
pgdata->chiSymbolCursor--;
}
pgdata->bSelect = 1;
SetAvailInfo(
&( pgdata->availInfo ),
pgdata->phoneSeq,
pgdata->nPhoneSeq,
PhoneSeqCursor( pgdata ),
pgdata->bSymbolArrBrkpt );
if ( ! pgdata->availInfo.nAvail )
return ChoiceEndChoice( pgdata );
pgdata->availInfo.currentAvail = pgdata->availInfo.nAvail - 1;
SetChoiceInfo(
&( pgdata->choiceInfo ),
&( pgdata->availInfo ),
pgdata->phoneSeq,
PhoneSeqCursor( pgdata ),
pgdata->config.candPerPage );
return 0;
}
/** @brief Enter choice mode and relating initialisations. */
int ChoiceInitAvail(ChewingData *pgdata)
{
int end, begin;
/* save old cursor position */
pgdata->choiceInfo.oldChiSymbolCursor = pgdata->chiSymbolCursor;
/* see if there is some word in the cursor position */
if (pgdata->chiSymbolBufLen == pgdata->chiSymbolCursor) {
pgdata->chiSymbolCursor--;
}
end = PhoneSeqCursor(pgdata);
if (pgdata->config.bPhraseChoiceRearward) {
pgdata->chiSymbolCursor = SeekPhraseHead(pgdata) + CountSymbols(pgdata, pgdata->chiSymbolCursor);
}
begin = PhoneSeqCursor(pgdata);
pgdata->bSelect = 1;
SetAvailInfo(pgdata, begin, end);
if (!pgdata->availInfo.nAvail)
return ChoiceEndChoice(pgdata);
pgdata->availInfo.currentAvail = pgdata->availInfo.nAvail - 1;
SetChoiceInfo(pgdata);
return 0;
}
CHEWING_API int chewing_handle_Esc( ChewingContext *ctx )
{
ChewingData *pgdata = ctx->data;
ChewingOutput *pgo = ctx->output;
int keystrokeRtn = KEYSTROKE_ABSORB;
CheckAndResetRange( pgdata );
if ( ! ChewingIsEntering( pgdata ) ) {
keystrokeRtn = KEYSTROKE_IGNORE;
}
else if ( pgdata->bSelect ) {
ChoiceEndChoice( pgdata );
}
else if ( ZuinIsEntering( &( pgdata->zuinData ) ) ) {
ZuinRemoveAll( &( pgdata->zuinData ) );
}
else if ( pgdata->config.bEscCleanAllBuf ) {
CleanAllBuf( pgdata );
pgo->nCommitStr = pgdata->chiSymbolBufLen;
}
MakeOutputWithRtn( pgo, pgdata, keystrokeRtn );
return 0;
}
/** @brief commit the selected phrase. */
int ChoiceSelect(ChewingData *pgdata, int selectNo)
{
ChoiceInfo *pci = &(pgdata->choiceInfo);
AvailInfo *pai = &(pgdata->availInfo);
ChangeSelectIntervalAndBreakpoint(pgdata,
PhoneSeqCursor(pgdata),
PhoneSeqCursor(pgdata) + pai->avail[pai->currentAvail].len,
pci->totalChoiceStr[selectNo]);
ChoiceEndChoice(pgdata);
return 0;
}
