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/*************************************************

	
The PMW Music Typesetter - 3rd incarnation  *
	
************************************************/


/* Copyright (c) Philip Hazel, 1991 - 2008 */

/* Written by Philip Hazel, starting November 1991 */
/* This file last modified: September 2008 */


/* This file contains code for outputting nth time bar markings */

#include "pmwhdr.h"
#include "outhdr.h"
#include "pagehdr.h"




/*************************************************

	
Deal with start of nth time bar       *
	
************************************************/


/* This function remembers the data for the start.

Arguments:
  nb           the data for the start
  x            the x coordinate of the start
  miny         minimum y coordinate - used to align multiple such markings

Returns:       nothing

	
/


void
out_setstartnbar(b_nbarstr *nb, int x, int miny)
{
nbarstr *nbb = store_Xget(sizeof(nbarstr));
nbb->next = NULL;
nbb->nbar = nb;
nbb->x = x;
nbb->maxy = -BIGNUMBER;
nbb->miny = miny;
bar_cont->nbar = nbb;
}


/*************************************************

	
Free store for an nth time marking     *
	
************************************************/


/* This frees all the remembered data.

Arguments:  none
Returns:    nothing

	
/


void
out_freenbar(void)
{
nbarstr *nb = bar_cont->nbar;
while (nb != NULL)
  {
  nbarstr *next = nb->next;
  store_free(nb);
  nb = next;
  }
bar_cont->nbar = NULL;
}


/*************************************************

	
Draw an nth time marking         *
	
************************************************/


/* The yield is the unmagnified y level, which is set as a minimum for a
subsequent marking. We don't free the data here, as sometimes nothing is drawn
(e.g. when bar lines descend), so the freeing happens elsewhere.

Arguments:
  rightjog      TRUE if a right jog is required
  x1            the x coordinate of the end of the mark

Returns:        the y level

	
/


int
out_drawnbar(BOOL rightjog, int x1)
{
int x[4], y[4];
int n = 0;
nbarstr *nb = bar_cont->nbar;
b_nbarstr *b = nb->nbar;

int yield;
int x0 = nb->x;
int yy = (nb->maxy > 18000)? nb->maxy + 11000 : 29000;

/* Minimum y keeps it aligned with previous if this is not the first */

if (yy < nb->miny) yy = nb->miny;

/* Add in manual adjustment and scale to stave */

yield = yy + b->y;
yy = (yield * main_stavemagn)/1000;

/* Sort out the left hand end at the start of a system */

if (x0 == 0)
  x0 = out_sysblock->firstnoteposition - 2000 + out_sysblock->xjustify;

/* Start of a new iteration; set up for a jog and output the text(s) */

else
  {
  uschar buff[80];
  uschar *p = buff;
  uschar *comma = US"";

  x0 += 1500 + b->x;
  x[n] = x0;
  y[n++] = yy - 10*main_stavemagn;

  while (nb != NULL)
    {
    b = nb->nbar;
    if (b->s == NULL)
      p += sprintf(CS p, "%s%d", comma, b->n);
    else
      p += sprintf(CS p, "%s%s", comma, b->s);
    comma = US", ";
    nb = nb->next;
    }

  out_string(buff, curmovt->font_repeat,
    mac_muldiv((curmovt->fontsizes)->fontsize_repno, main_stavemagn, 1000),
      x0 + 4000, out_ystave - yy + 9*main_stavemagn, 0);
  }

/* Draw the lines and return the basic level */

x[n] = x0;
y[n++] = yy;

x[n] = x1;
y[n++] = yy;

if (rightjog)
  {
  x[n] = x1;
  y[n++] = yy - 10*main_stavemagn;
  }

ps_lines(x, y, n, 400);
return yield;
}


/* End of setnbar.c */