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#include <stdio.h>
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#include <string.h>
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#include "grap.h"
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#include "y.tab.h"
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int pointsize = 10; /* assumed pointsize to start */
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int ps_set = 0; /* someone has set pointsize explicitly */
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double textht = 1.0/6.0; /* 6 lines/inch */
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double textwid = 1; /* width of text box for vertical */
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double lab_up = 0.0; /* extra motion for label */
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double lab_rt = 0.0; /* extra motion for label */
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double lab_wid = 0.0; /* override default width computation */
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void labelwid(double amt)
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{
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lab_wid = amt + .00001;
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}
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void labelmove(int dir, double amt) /* record direction & motion of position corr */
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{
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switch (dir) {
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case UP: lab_up += amt; break;
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case DOWN: lab_up -= amt; break;
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case LEFT: lab_rt -= amt; break;
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case RIGHT: lab_rt += amt; break;
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}
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}
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void label(int label_side, Attr *stringlist) /* stick label on label_side */
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{
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int m;
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Attr *ap;
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fprintf(tfd, "\ttextht = %g\n", textht);
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if (lab_wid != 0.0) {
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fprintf(tfd, "\ttextwid = %g\n", lab_wid);
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lab_wid = 0;
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} else if (label_side == LEFT || label_side == RIGHT) {
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textwid = 0;
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for (ap = stringlist; ap != NULL; ap = ap->next)
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if ((m = strlen(ap->sval)) > textwid)
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textwid = m;
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textwid /= 15; /* estimate width at 15 chars/inch */
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fprintf(tfd, "\ttextwid = %g\n", textwid);
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}
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fprintf(tfd, "Label:\t%s", slprint(stringlist));
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freeattr(stringlist);
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switch (label_side) {
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case BOT:
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case 0:
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fprintf(tfd, " with .n at Frame.s - (0,2 * textht)");
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break;
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case LEFT:
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fprintf(tfd, " wid textwid with .e at Frame.w - (0.2,0)");
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break;
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case RIGHT:
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fprintf(tfd, " wid textwid with .w at Frame.e + (0.2,0)");
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break;
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case TOP:
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fprintf(tfd, " with .s at Frame.n + (0,2 * textht)");
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break;
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}
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lab_adjust();
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fprintf(tfd, "\n");
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label_side = BOT;
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}
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void lab_adjust(void) /* add a string to adjust labels, ticks, etc. */
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{
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if (lab_up != 0.0 || lab_rt != 0.0)
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fprintf(tfd, " + (%g,%g)", lab_rt, lab_up);
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}
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char *sizeit(Attr *ap) /* add \s..\s to ap->sval */
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{
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int n;
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static char buf[1000];
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if (!ap->op) { /* no explicit size command */
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if (ps_set) {
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sprintf(buf, "\\s%d%s\\s0", pointsize, ap->sval);
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return buf;
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} else
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return ap->sval;
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} else if (!ps_set) { /* explicit size but no global size */
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n = (int) ap->fval;
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switch (ap->op) {
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case ' ': /* absolute size */
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sprintf(buf, "\\s%d%s\\s0", n, ap->sval);
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break;
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case '+': /* better be only one digit! */
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sprintf(buf, "\\s+%d%s\\s-%d", n, ap->sval, n);
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break;
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case '-':
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sprintf(buf, "\\s-%d%s\\s+%d", n, ap->sval, n);
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break;
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case '*':
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case '/':
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return ap->sval; /* ignore for now */
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}
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return buf;
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} else {
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/* explicit size and a global background size */
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n = (int) ap->fval;
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switch (ap->op) {
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case ' ': /* absolute size */
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sprintf(buf, "\\s%d%s\\s0", n, ap->sval);
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break;
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case '+':
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sprintf(buf, "\\s%d%s\\s0", pointsize+n, ap->sval);
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break;
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case '-':
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sprintf(buf, "\\s%d%s\\s0", pointsize-n, ap->sval);
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break;
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case '*':
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case '/':
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return ap->sval; /* ignore for now */
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}
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return buf;
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}
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}
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