static void chooseCandidate( ChewingContext *ctx, int toSelect, int key_buf_cursor )
{
ChewingData *pgdata = ctx->data;
if ( toSelect ) {
if ( ! pgdata->bSelect ) {
ChoiceFirstAvail( pgdata );
} else {
if ( pgdata->config.bPhraseChoiceRearward ) {
int avail_willbe = (pgdata->availInfo.currentAvail > 0) ?
pgdata->availInfo.currentAvail - 1 :
pgdata->availInfo.nAvail - 1;
pgdata->chiSymbolCursor = pgdata->choiceInfo.oldChiSymbolCursor -
pgdata->availInfo.avail[ avail_willbe ].len;
if ( chewing_buffer_Len( ctx ) >
pgdata->choiceInfo.oldChiSymbolCursor ) {
pgdata->chiSymbolCursor++;
}
}
ChoiceNextAvail( pgdata );
}
} else if ( pgdata->symbolKeyBuf[ key_buf_cursor ] ) {
/* Open Symbol Choice List */
if ( pgdata->choiceInfo.isSymbol == WORD_CHOICE )
OpenSymbolChoice( pgdata );
}
}
CHEWING_API int chewing_handle_Down( ChewingContext *ctx )
{
ChewingData *pgdata = ctx->data;
ChewingOutput *pgo = ctx->output;
int toSelect = 0;
int keystrokeRtn = KEYSTROKE_ABSORB;
int key_buf_cursor;
CheckAndResetRange( pgdata );
if ( ! ChewingIsEntering( pgdata ) ) {
keystrokeRtn = KEYSTROKE_IGNORE;
}
key_buf_cursor = pgdata->chiSymbolCursor;
if ( pgdata->chiSymbolCursor == pgdata->chiSymbolBufLen )
key_buf_cursor--;
/* see if to select */
if ( ChewingIsChiAt( key_buf_cursor, pgdata ) )
toSelect = 1;
if ( toSelect ) {
if( ! pgdata->bSelect ) {
ChoiceFirstAvail( pgdata );
}
else {
ChoiceNextAvail( pgdata );
}
}
else if ( pgdata->symbolKeyBuf[ key_buf_cursor ] ) {
/* Open Symbol Choice List */
if ( ! pgdata->choiceInfo.isSymbol )
OpenSymbolChoice( pgdata );
}
MakeOutputWithRtn( pgo, pgdata, keystrokeRtn );
return 0;
}
CHEWING_API int chewing_handle_Space( ChewingContext *ctx )
{
ChewingData *pgdata = ctx->data;
ChewingOutput *pgo = ctx->output;
int keystrokeRtn = KEYSTROKE_ABSORB;
int toSelect = 0;
int rtn, key_buf_cursor;
int bQuickCommit = 0;
/* check if Old Chewing style */
if ( ! pgdata->config.bSpaceAsSelection ) {
return chewing_handle_Default( ctx, ' ' );
}
CheckAndResetRange( pgdata );
if ( pgdata->bSelect ) {
if ( pgdata->choiceInfo.pageNo < ( pgdata->choiceInfo.nPage - 1 ) ) {
return chewing_handle_Right( ctx );
}
}
if ( ! ChewingIsEntering( pgdata ) ) {
if ( pgdata->bFullShape ) {
rtn = FullShapeSymbolInput( ' ', pgdata );
}
else {
rtn = SymbolInput( ' ', pgdata );
}
pgo->commitStr[ 0 ] = pgdata->chiSymbolBuf[ 0 ];
pgo->nCommitStr = 1;
pgdata->chiSymbolBufLen = 0;
pgdata->chiSymbolCursor = 0;
keystrokeRtn = KEYSTROKE_COMMIT;
}
else if ( pgdata->bChiSym != CHINESE_MODE ) {
/* see if buffer contains nothing */
if ( pgdata->chiSymbolBufLen == 0 ) {
bQuickCommit = 1;
}
if ( pgdata->bFullShape ) {
rtn = FullShapeSymbolInput( ' ', pgdata );
}
else {
rtn = SymbolInput( ' ', pgdata );
}
keystrokeRtn = KEYSTROKE_ABSORB;
if ( rtn == SYMBOL_KEY_ERROR ) {
keystrokeRtn = KEYSTROKE_IGNORE;
/*
* If the key is not a printable symbol,
* then it's wrong to commit it.
*/
bQuickCommit = 0;
}
else {
keystrokeRtn = KEYSTROKE_ABSORB;
}
if ( ! bQuickCommit ) {
CallPhrasing( pgdata );
if( ReleaseChiSymbolBuf( pgdata, pgo ) != 0 )
keystrokeRtn = KEYSTROKE_COMMIT;
}
/* Quick commit */
else {
DEBUG_OUT(
"\t\tQuick commit buf[0]=%c\n",
pgdata->chiSymbolBuf[ 0 ].s[ 0 ] );
pgo->commitStr[ 0 ] = pgdata->chiSymbolBuf[ 0 ];
pgo->nCommitStr = 1;
pgdata->chiSymbolBufLen = 0;
pgdata->chiSymbolCursor = 0;
keystrokeRtn = KEYSTROKE_COMMIT;
}
}
else {
rtn = ZuinPhoInput( &( pgdata->zuinData ), ' ' );
switch ( rtn ) {
case ZUIN_ABSORB:
keystrokeRtn = KEYSTROKE_ABSORB;
break;
case ZUIN_COMMIT:
AddChi( pgdata->zuinData.phone, pgdata );
CallPhrasing( pgdata );
break;
case ZUIN_NO_WORD:
keystrokeRtn = KEYSTROKE_BELL | KEYSTROKE_ABSORB;
break;
case ZUIN_KEY_ERROR:
case ZUIN_IGNORE:
key_buf_cursor = pgdata->chiSymbolCursor;
if ( pgdata->chiSymbolCursor == pgdata->chiSymbolBufLen )
key_buf_cursor--;
/* see if to select */
if ( ChewingIsChiAt( key_buf_cursor, pgdata ) )
toSelect = 1;
if ( toSelect ) {
if ( ! pgdata->bSelect )
ChoiceFirstAvail( pgdata );
else
ChoiceNextAvail( pgdata );
}
else if ( pgdata->symbolKeyBuf[ key_buf_cursor ] ) {
/* Open Symbol Choice List */
if( ! pgdata->choiceInfo.isSymbol )
OpenSymbolChoice( pgdata );
}
break;
}
}
MakeOutputWithRtn( pgo, pgdata, keystrokeRtn );
return 0;
}
CHEWING_API int chewing_handle_Default( ChewingContext *ctx, int key )
{
ChewingData *pgdata = ctx->data;
ChewingOutput *pgo = ctx->output;
int rtn, num;
int keystrokeRtn = KEYSTROKE_ABSORB;
int bQuickCommit = 0;
/* Update lifetime */
chewing_lifetime++;
/* Skip the special key */
if ( key & 0xFF00 ) {
keystrokeRtn = KEYSTROKE_IGNORE;
goto End_KeyDefault;
}
/* We ignore non-printable input */
if ( ! isprint( key ) )
goto End_KeyDefault;
CheckAndResetRange( pgdata );
DEBUG_CHECKPOINT();
DEBUG_OUT( " key=%d", key );
/* Dvorak Hsu */
if ( pgdata->zuinData.kbtype == KB_DVORAK_HSU ) {
key = dvorak_convert( key );
}
/* selecting */
if ( pgdata->bSelect ) {
if ( key == ' ' )
return chewing_handle_Right( ctx );
/* num starts from 0 */
num = CountSelKeyNum( key, pgdata );
if ( num >= 0 ) {
DoSelect( pgdata, num );
goto End_keyproc;
}
/* Otherwise, use 'j' and 'k' for paging in selection mode */
DEBUG_OUT(
"\t\tchecking paging key, got '%c'\n",
key );
switch ( key ) {
case 'j':
case 'J':
if ( pgdata->chiSymbolCursor > 0 ) {
if ( ! ChewingIsEntering( pgdata ) ) {
keystrokeRtn = KEYSTROKE_IGNORE;
}
CheckAndResetRange( pgdata );
pgdata->chiSymbolCursor--;
ChoiceFirstAvail( pgdata );
}
goto End_Paging;
case 'k':
case 'K':
if ( pgdata->chiSymbolCursor < pgdata->chiSymbolBufLen ) {
if ( ! ChewingIsEntering( pgdata ) ) {
keystrokeRtn = KEYSTROKE_IGNORE;
}
CheckAndResetRange( pgdata );
pgdata->chiSymbolCursor++;
ChoiceFirstAvail( pgdata );
}
goto End_Paging;
default:
break;
}
}
/* editing */
else {
if ( pgdata->bChiSym == CHINESE_MODE ) {
if ( pgdata->config.bEasySymbolInput != 0 ) {
EasySymbolInput( key, pgdata, pgo );
goto End_keyproc;
}
/* open symbol table */
if ( key == '`' ) {
pgdata->bSelect = 1;
pgdata->choiceInfo.oldChiSymbolCursor = pgdata->chiSymbolCursor;
HaninSymbolInput(
&( pgdata->choiceInfo ),
&( pgdata->availInfo ),
pgdata->phoneSeq,
pgdata->config.candPerPage );
goto End_KeyDefault;
}
rtn = ZuinPhoInput( &( pgdata->zuinData ), key );
DEBUG_OUT(
"\t\tChinese mode key, "
"ZuinPhoInput return value = %d\n",
rtn );
DEBUG_FLUSH;
if ( rtn == ZUIN_KEY_ERROR )
rtn = SpecialSymbolInput( key, pgdata );
switch ( rtn ) {
case ZUIN_ABSORB:
keystrokeRtn = KEYSTROKE_ABSORB;
break;
case ZUIN_COMMIT:
AddChi( pgdata->zuinData.phone, pgdata );
break;
case ZUIN_NO_WORD:
keystrokeRtn = KEYSTROKE_BELL | KEYSTROKE_ABSORB;
break;
case ZUIN_KEY_ERROR:
case ZUIN_IGNORE:
DEBUG_OUT(
"\t\tbefore isupper(key),key=%d\n",
key );
/* change upper case into lower case */
if ( isupper( key ) )
key = tolower( key );
DEBUG_OUT(
"\t\tafter isupper(key),key=%d\n",
key );
/* see if buffer contains nothing */
if ( pgdata->chiSymbolBufLen == 0 ) {
bQuickCommit = 1;
}
if ( pgdata->config.bEasySymbolInput == 0 ) {
if ( pgdata->bFullShape )
rtn = FullShapeSymbolInput( key, pgdata );
else
rtn = SymbolInput( key, pgdata );
}
if ( rtn == SYMBOL_KEY_ERROR ) {
keystrokeRtn = KEYSTROKE_IGNORE;
/*
* If the key is not a printable symbol,
* then it's wrong to commit it.
*/
bQuickCommit = 0;
}
else
keystrokeRtn = KEYSTROKE_ABSORB;
break;
}
}
/* English mode */
else {
/* see if buffer contains nothing */
if ( pgdata->chiSymbolBufLen == 0 ) {
bQuickCommit = 1;
}
if ( pgdata->bFullShape ) {
rtn = FullShapeSymbolInput( key, pgdata );
}
else {
rtn = SymbolInput( key, pgdata );
}
if ( rtn == SYMBOL_KEY_ERROR ) {
keystrokeRtn = KEYSTROKE_IGNORE;
bQuickCommit = 0;
}
}
}
End_keyproc:
if ( ! bQuickCommit ) {
CallPhrasing( pgdata );
if ( ReleaseChiSymbolBuf( pgdata, pgo ) != 0 )
keystrokeRtn = KEYSTROKE_COMMIT;
}
/* Quick commit */
else {
DEBUG_OUT(
"\t\tQuick commit buf[0]=%c\n",
pgdata->chiSymbolBuf[ 0 ].s[ 0 ] );
pgo->commitStr[ 0 ] = pgdata->chiSymbolBuf[ 0 ];
pgo->nCommitStr = 1;
pgdata->chiSymbolBufLen = 0;
pgdata->chiSymbolCursor = 0;
keystrokeRtn = KEYSTROKE_COMMIT;
}
if ( pgdata->phrOut.nNumCut > 0 ) {
int i;
for ( i = 0; i < pgdata->phrOut.nDispInterval; i++ ) {
pgdata->bUserArrBrkpt[ pgdata->phrOut.dispInterval[ i ].from ] = 1;
pgdata->bUserArrBrkpt[ pgdata->phrOut.dispInterval[ i ].to ] = 1;
}
pgdata->phrOut.nNumCut = 0;
}
End_KeyDefault:
CallPhrasing( pgdata );
End_Paging:
MakeOutputWithRtn( pgo, pgdata, keystrokeRtn );
return 0;
}
