/*
   =============================================================================
	sqdkey.c -- MIDAS-VII sequence display data entry functions
	Version 8 -- 1988-11-22 -- D.N. Lynx Crowe
   =============================================================================
*/

#include "ram.h"

int16_t	actfmt;		/* action code format */

int8_t	actlft[] = { 12, 24, 36 };	/* action field leftmost columns */

int8_t	seqdfmt[] = {			/* action data entry format by action */

	0,  1, 1, 1, 1,  2, 2, 2, 2,  3, 3, 3, 3,  0, 4, 0,  3
};

/*
   =============================================================================
	seq2buf() -- load the edit buffer from the current sequence line
   =============================================================================
*/

void seq2buf(void)
{
	memcpyw(&seqbuf, &seqtab[curslin], NSEQW);
	dsqlin(sqdebuf, curslin);
	sqdeflg = TRUE;
}

/*
   =============================================================================
	sqactde() -- sequence action digit data entry function
   =============================================================================
*/

void sqactde(int16_t key)
{
	register int16_t col;
	int16_t defmt;
	uint16_t act, vtype;
	int8_t buf[8];

	col = stccol - actlft[action];		/* get field data entry column */

	switch (action) {	/* get action code from sequence entry */

	case 0:		/* action 1 */

		act = seqbuf.seqact1;
		vtype = SQ_MTYP & seqbuf.seqdat1;
		break;

	case 1:		/* action 2 */

		act = seqbuf.seqact2;
		vtype = SQ_MTYP & seqbuf.seqdat2;
		break;

	case 2:		/* action 3 */

		act = seqbuf.seqact3;
		vtype = SQ_MTYP & seqbuf.seqdat3;
		break;

	default:	/* something weird got in here */

		return;
	}

	defmt = seqdfmt[SQ_MACT & act];		/* get data entry format code */

	switch (defmt) {		/* switch off of data entry format */

	case 1:		/* key, port, chan */

		if (inrange(col, 3, 5)) {	/* key */

			if ((col EQ 3) AND (key > 1))
				return;

			buf[0] = (int8_t)(key + '0');

		} else if (col EQ 7) {		/* port */

			if ((key EQ 1) OR (key EQ 2)) {		/* MIDI */

				buf[0] = (int8_t)(key + '0');

				UpdVid(7, stccol + 1, " 01", PTDATR);
				memcpy(&sqdebuf[stccol + 1], " 01", 3);

			} else if (key EQ 3) {			/* local */

				buf[0] = 'L';

				UpdVid(7, stccol + 1, "   ", PTDATR);
				memset(&sqdebuf[stccol + 1], ' ', 3);

			} else {

				return;
			}

		} else if (inrange(col, 9, 10)) {	/* channel */

			if ((col EQ 9) AND (key > 1))
				return;

			buf[0] = (int8_t)(key + '0');
		}

		buf[1] = '\0';
		sqdebuf[stccol] = buf[0];

		UpdVid(7, stccol, buf, PTDATR);

		if ((col EQ 5) OR (col EQ 7)) {		/* skip blanks */

			++stccol;
			++col;
		}

		if (col EQ 10)
			ctcon();
		else
			movestc(stcrow, ++stccol);

		return;

	case 2:		/* trigger */

		if (inrange(col, 9, 10)) {

			if ((col EQ 9) AND (key > 1))
				return;

		} else {

			return;
		}

		buf[0] = (int8_t)(key + '0');
		buf[1] = '\0';
		sqdebuf[stccol] = (int8_t)(key + '0');

		UpdVid(7, stccol, buf, PTDATR);

		if (col EQ 10)
			ctcon();
		else
			movestc(stcrow, ++stccol);

		return;

	case 3:		/* register operations */

		if ((col EQ 7) AND (act EQ SQ_AREG)) {

			if (key EQ 8)			/* - */
				buf[0] = '-';
			else if (key EQ 9)		/* + */
				buf[0] = '+';
			else
				return;

			buf[1] = '\0';
			sqdebuf[stccol] = buf[0];
			UpdVid(7, stccol, buf, PTDATR);
			movestc(stcrow, ++stccol);
			return;
		}

		switch (vtype) {

		case SQ_REG:		/* register contents */

			if (inrange(col, 5, 6) OR inrange(col, 9, 10)) {

				if ( ((col EQ 5) OR (col EQ 9)) AND (key > 1) )
					return;

			} else {

				return;
			}

			buf[0] = (int8_t)(key + '0');
			buf[1] = '\0';
			sqdebuf[stccol] = (int8_t)(key + '0');

			UpdVid(7, stccol, buf, PTDATR);

			if (col EQ 6) {

				col    += 2;
				stccol += 2;
			}

			if (col EQ 10)
				ctcon();
			else
				movestc(stcrow, ++stccol);

			return;

		case SQ_VAL:		/* constant value */

			if (inrange(col, 5, 6) OR inrange(col, 8, 9)) {

				if ((col EQ 5) AND (key > 1))
					return;

			} else {

				return;
			}

			buf[0] = (int8_t)(key + '0');
			buf[1] = '\0';
			sqdebuf[stccol] = (int8_t)(key + '0');

			UpdVid(7, stccol, buf, PTDATR);

			if (col EQ 6) {

				++col;
				++stccol;
			}

			if (col EQ 9)
				ctcon();
			else
				movestc(stcrow, ++stccol);

			return;

		case SQ_VLT:		/* voltage input */

			if (inrange(col, 5, 6) OR (col EQ 9)) {

				if ((col EQ 5) AND (key > 1))
					return;
				else if ( (col EQ 9) AND ((key < 1) OR (key > 4)) )
					return;

			} else {

				return;
			}

			buf[0] = (int8_t)(key + '0');
			buf[1] = '\0';
			sqdebuf[stccol] = (int8_t)(key + '0');

			UpdVid(7, stccol, buf, PTDATR);

			if (col EQ 6) {

				col    += 2;
				stccol += 2;
			}

			if (col EQ 9)
				ctcon();
			else
				movestc(stcrow, ++stccol);

			return;

		case SQ_RND:		/* random value */

			if (inrange(col, 5, 6) OR (col EQ 9)) {

				if ((col EQ 5) AND (key > 1))
					return;

				if ((col EQ 9) AND (key > 6))
					return;

			} else {

				return;
			}

			buf[0] = (int8_t)(key + '0');
			buf[1] = '\0';
			sqdebuf[stccol] = (int8_t)(key + '0');

			UpdVid(7, stccol, buf, PTDATR);

			if (col EQ 6) {

				col    += 2;
				stccol += 2;
			}

			if (col EQ 9)
				ctcon();
			else
				movestc(stcrow, ++stccol);

			return;
		}

	case 4:		/* sequence line */

		if (inrange(col, 0, 7))
			return;

		buf[0] = (int8_t)(key + '0');
		buf[1] = '\0';
		sqdebuf[stccol] = (int8_t)(key + '0');

		UpdVid(7, stccol, buf, PTDATR);

		if (col EQ 10)
			ctcon();
		else
			movestc(stcrow, ++stccol);

		return;

	case 0:		/* -none- */
	default:

		return;
	}
}

/*
   =============================================================================
	sqdkey() -- sequence digit data entry control function
   =============================================================================
*/

void sqdkey(int16_t k)
{
	register int16_t key;
	int8_t buf[8];

	(void)k;

	if (NOT astat)			/* only do this on key closures */
		return;

	if (NOT sqdeflg)		/* load up the edit buffer */
		seq2buf();

	key = asig - 60;

	if (inrange(stccol, 2, 4)) {			/* line */

		buf[0] = (int8_t)(key + '0');
		buf[1] = '\0';

		sqdebuf[stccol] = (int8_t)(key + '0');

		UpdVid(7, stccol, buf, PTDATR);

		if (stccol EQ 4)
			ctcon();
		else
			movestc(stcrow, ++stccol);

		return;

	} else if (inrange(stccol, 6, 10)) {		/* time */

		if (stccol EQ 8)
			return;

		buf[0] = (int8_t)(key + '0');
		buf[1] = '\0';

		sqdebuf[stccol] = (int8_t)(key + '0');

		UpdVid(7, stccol, buf, PTDATR);

		if (stccol EQ 7)
			++stccol;

		if (stccol EQ 10)
			ctcon();
		else
			movestc(stcrow, ++stccol);

		return;

	} else if (inrange(stccol, 12, 22)) {		/* action 1 */

		action = 0;
		sqactde(key);
		return;

	} else if (inrange(stccol, 24, 34)) {		/* action 2 */

		action = 1;
		sqactde(key);
		return;

	} else if (inrange(stccol, 36, 46)) {		/* action 3 */

		action = 2;
		sqactde(key);
		return;
	}
}