| rsc | 5cedca1 | 2004-05-15 23:24:00 +0000 | [diff] [blame] | 1 | #include <stdio.h> |
| 2 | #include <string.h> |
| 3 | #include "grap.h" |
| 4 | #include "y.tab.h" |
| 5 | |
| 6 | int pointsize = 10; /* assumed pointsize to start */ |
| 7 | int ps_set = 0; /* someone has set pointsize explicitly */ |
| 8 | |
| 9 | double textht = 1.0/6.0; /* 6 lines/inch */ |
| 10 | double textwid = 1; /* width of text box for vertical */ |
| 11 | |
| 12 | double lab_up = 0.0; /* extra motion for label */ |
| 13 | double lab_rt = 0.0; /* extra motion for label */ |
| 14 | double lab_wid = 0.0; /* override default width computation */ |
| 15 | |
| 16 | void labelwid(double amt) |
| 17 | { |
| 18 | lab_wid = amt + .00001; |
| 19 | } |
| 20 | |
| 21 | void labelmove(int dir, double amt) /* record direction & motion of position corr */ |
| 22 | { |
| 23 | switch (dir) { |
| 24 | case UP: lab_up += amt; break; |
| 25 | case DOWN: lab_up -= amt; break; |
| 26 | case LEFT: lab_rt -= amt; break; |
| 27 | case RIGHT: lab_rt += amt; break; |
| 28 | } |
| 29 | } |
| 30 | |
| 31 | void label(int label_side, Attr *stringlist) /* stick label on label_side */ |
| 32 | { |
| 33 | int m; |
| 34 | Attr *ap; |
| 35 | |
| 36 | fprintf(tfd, "\ttextht = %g\n", textht); |
| 37 | if (lab_wid != 0.0) { |
| 38 | fprintf(tfd, "\ttextwid = %g\n", lab_wid); |
| 39 | lab_wid = 0; |
| 40 | } else if (label_side == LEFT || label_side == RIGHT) { |
| 41 | textwid = 0; |
| 42 | for (ap = stringlist; ap != NULL; ap = ap->next) |
| 43 | if ((m = strlen(ap->sval)) > textwid) |
| 44 | textwid = m; |
| 45 | textwid /= 15; /* estimate width at 15 chars/inch */ |
| 46 | fprintf(tfd, "\ttextwid = %g\n", textwid); |
| 47 | } |
| 48 | fprintf(tfd, "Label:\t%s", slprint(stringlist)); |
| 49 | freeattr(stringlist); |
| 50 | switch (label_side) { |
| 51 | case BOT: |
| 52 | case 0: |
| 53 | fprintf(tfd, " with .n at Frame.s - (0,2 * textht)"); |
| 54 | break; |
| 55 | case LEFT: |
| 56 | fprintf(tfd, " wid textwid with .e at Frame.w - (0.2,0)"); |
| 57 | break; |
| 58 | case RIGHT: |
| 59 | fprintf(tfd, " wid textwid with .w at Frame.e + (0.2,0)"); |
| 60 | break; |
| 61 | case TOP: |
| 62 | fprintf(tfd, " with .s at Frame.n + (0,2 * textht)"); |
| 63 | break; |
| 64 | } |
| 65 | lab_adjust(); |
| 66 | fprintf(tfd, "\n"); |
| 67 | label_side = BOT; |
| 68 | } |
| 69 | |
| 70 | void lab_adjust(void) /* add a string to adjust labels, ticks, etc. */ |
| 71 | { |
| 72 | if (lab_up != 0.0 || lab_rt != 0.0) |
| 73 | fprintf(tfd, " + (%g,%g)", lab_rt, lab_up); |
| 74 | } |
| 75 | |
| 76 | char *sizeit(Attr *ap) /* add \s..\s to ap->sval */ |
| 77 | { |
| 78 | int n; |
| 79 | static char buf[1000]; |
| 80 | |
| 81 | if (!ap->op) { /* no explicit size command */ |
| 82 | if (ps_set) { |
| 83 | sprintf(buf, "\\s%d%s\\s0", pointsize, ap->sval); |
| 84 | return buf; |
| 85 | } else |
| 86 | return ap->sval; |
| 87 | } else if (!ps_set) { /* explicit size but no global size */ |
| 88 | n = (int) ap->fval; |
| 89 | switch (ap->op) { |
| 90 | case ' ': /* absolute size */ |
| 91 | sprintf(buf, "\\s%d%s\\s0", n, ap->sval); |
| 92 | break; |
| 93 | case '+': /* better be only one digit! */ |
| 94 | sprintf(buf, "\\s+%d%s\\s-%d", n, ap->sval, n); |
| 95 | break; |
| 96 | case '-': |
| 97 | sprintf(buf, "\\s-%d%s\\s+%d", n, ap->sval, n); |
| 98 | break; |
| 99 | case '*': |
| 100 | case '/': |
| 101 | return ap->sval; /* ignore for now */ |
| 102 | } |
| 103 | return buf; |
| 104 | } else { |
| 105 | /* explicit size and a global background size */ |
| 106 | n = (int) ap->fval; |
| 107 | switch (ap->op) { |
| 108 | case ' ': /* absolute size */ |
| 109 | sprintf(buf, "\\s%d%s\\s0", n, ap->sval); |
| 110 | break; |
| 111 | case '+': |
| 112 | sprintf(buf, "\\s%d%s\\s0", pointsize+n, ap->sval); |
| 113 | break; |
| 114 | case '-': |
| 115 | sprintf(buf, "\\s%d%s\\s0", pointsize-n, ap->sval); |
| 116 | break; |
| 117 | case '*': |
| 118 | case '/': |
| 119 | return ap->sval; /* ignore for now */ |
| 120 | } |
| 121 | return buf; |
| 122 | } |
| 123 | } |
