Subversion Repositories planix.SVN

#include <stdio.h>
#include <string.h>
#include "grap.h"
#include "y.tab.h"

int     pointsize       = 10;   /* assumed pointsize to start */
int     ps_set          = 0;    /* someone has set pointsize explicitly */

double  textht  = 1.0/6.0;      /* 6 lines/inch */
double  textwid = 1;            /* width of text box for vertical */

double  lab_up  = 0.0;          /* extra motion for label */
double  lab_rt  = 0.0;          /* extra motion for label */
double  lab_wid = 0.0;          /* override default width computation */

void labelwid(double amt)
{
        lab_wid = amt + .00001;
}

void labelmove(int dir, double amt)     /* record direction & motion of position corr */
{
        switch (dir) {
        case UP:        lab_up += amt; break;
        case DOWN:      lab_up -= amt; break;
        case LEFT:      lab_rt -= amt; break;
        case RIGHT:     lab_rt += amt; break;
        }
}

void label(int label_side, Attr *stringlist)    /* stick label on label_side */
{
        int m;
        Attr *ap;

        fprintf(tfd, "\ttextht = %g\n", textht);
        if (lab_wid != 0.0) {
                fprintf(tfd, "\ttextwid = %g\n", lab_wid);
                lab_wid = 0;
        } else if (label_side == LEFT || label_side == RIGHT) {
                textwid = 0;
                for (ap = stringlist; ap != NULL; ap = ap->next)
                        if ((m = strlen(ap->sval)) > textwid)
                                textwid = m;
                textwid /= 15;  /* estimate width at 15 chars/inch */
                fprintf(tfd, "\ttextwid = %g\n", textwid);
        }
        fprintf(tfd, "Label:\t%s", slprint(stringlist));
        freeattr(stringlist);
        switch (label_side) {
        case BOT:
        case 0:
                fprintf(tfd, " with .n at Frame.s - (0,2 * textht)");
                break;
        case LEFT:
                fprintf(tfd, " wid textwid with .e at Frame.w - (0.2,0)");
                break;
        case RIGHT:
                fprintf(tfd, " wid textwid with .w at Frame.e + (0.2,0)");
                break;
        case TOP:
                fprintf(tfd, " with .s at Frame.n + (0,2 * textht)");
                break;
        }
        lab_adjust();
        fprintf(tfd, "\n");
        label_side = BOT;
}

void lab_adjust(void)   /* add a string to adjust labels, ticks, etc. */
{
        if (lab_up != 0.0 || lab_rt != 0.0)
                fprintf(tfd, " + (%g,%g)", lab_rt, lab_up);
}

char *sizeit(Attr *ap)          /* add \s..\s to ap->sval */
{
        int n;
        static char buf[1000];

        if (!ap->op) {  /* no explicit size command */
                if (ps_set) {
                        sprintf(buf, "\\s%d%s\\s0", pointsize, ap->sval);
                        return buf;
                } else
                        return ap->sval;
        } else if (!ps_set) {   /* explicit size but no global size */
                n = (int) ap->fval;
                switch (ap->op) {
                case ' ':       /* absolute size */
                        sprintf(buf, "\\s%d%s\\s0", n, ap->sval);
                        break;
                case '+':       /* better be only one digit! */
                        sprintf(buf, "\\s+%d%s\\s-%d", n, ap->sval, n);
                        break;
                case '-':
                        sprintf(buf, "\\s-%d%s\\s+%d", n, ap->sval, n);
                        break;
                case '*':
                case '/':
                        return ap->sval;        /* ignore for now */
                }
                return buf;
        } else {
                /* explicit size and a global background size */
                n = (int) ap->fval;
                switch (ap->op) {
                case ' ':       /* absolute size */
                        sprintf(buf, "\\s%d%s\\s0", n, ap->sval);
                        break;
                case '+':
                        sprintf(buf, "\\s%d%s\\s0", pointsize+n, ap->sval);
                        break;
                case '-':
                        sprintf(buf, "\\s%d%s\\s0", pointsize-n, ap->sval);
                        break;
                case '*':
                case '/':
                        return ap->sval;        /* ignore for now */
                }
                return buf;
        }
}