[418] | 1 | /*
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| 2 | * $Source: /tmp_mnt/n/fs/grad1/jsp/src/jgraph/RCS/printline.c,v $
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| 3 | * $Revision: 8.3 $
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| 4 | * $Date: 92/11/30 11:42:31 $
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| 5 | * $Author: jsp $
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| 6 | */
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| 7 |
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| 8 | #include "jgraph.h"
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| 9 | #include <stdio.h>
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[419] | 10 | #include <assert.h> //by pzn@debian.org
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[418] | 11 |
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| 12 | #define LINEWIDTHFACTOR 0.700
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| 13 | #define MAX(a, b) ((a > b) ? (a) : (b))
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| 14 |
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| 15 | typedef struct fontlist {
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| 16 | struct fontlist *flink;
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| 17 | struct fontlist *blink;
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| 18 | int level;
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| 19 | float s;
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| 20 | char *f;
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| 21 | } *Fontlist;
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| 22 |
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| 23 | static Fontlist Jgraph_fonts;
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| 24 | static int Jgraph_gsave_level = -100;
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| 25 | static int Jgraph_comment;
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| 26 |
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| 27 | gsave()
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| 28 | {
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| 29 | if (Jgraph_gsave_level == -100) {
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| 30 | Jgraph_gsave_level = 0;
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| 31 | Jgraph_fonts = (Fontlist) make_list(sizeof(struct fontlist));
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| 32 | }
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| 33 | Jgraph_gsave_level++;
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| 34 | printf(" gsave ");
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| 35 | }
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| 36 |
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| 37 | grestore()
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| 38 | {
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| 39 | Fontlist l;
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| 40 |
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| 41 | if (last(Jgraph_fonts) != nil(Jgraph_fonts)) {
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| 42 | l = last(Jgraph_fonts);
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| 43 | if (l->level == Jgraph_gsave_level) {
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| 44 | delete_item(l);
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| 45 | free_node(l, Jgraph_fonts);
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| 46 | }
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| 47 | }
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| 48 | Jgraph_gsave_level--;
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| 49 | printf(" grestore ");
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| 50 | }
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| 51 |
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| 52 | setfont(f, s)
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| 53 | char *f;
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| 54 | float s;
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| 55 | {
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| 56 | Fontlist l;
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| 57 | int ins;
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| 58 |
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| 59 | if (last(Jgraph_fonts) != nil(Jgraph_fonts)) {
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| 60 | l = last(Jgraph_fonts);
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| 61 | ins = (strcmp(l->f, f) != 0 || s != l->s);
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| 62 | if (ins) {
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| 63 | delete_item(l);
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| 64 | free_node(l, Jgraph_fonts);
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| 65 | }
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| 66 | } else {
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| 67 | ins = 1;
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| 68 | }
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| 69 | if (ins) {
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| 70 | l = (Fontlist) get_node(Jgraph_fonts);
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| 71 | l->level = Jgraph_gsave_level;
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| 72 | l->s = s;
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| 73 | l->f = f;
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| 74 | insert(l, Jgraph_fonts);
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| 75 | printf("/%s findfont %f scalefont setfont\n", f, s);
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| 76 | }
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| 77 | }
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| 78 |
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| 79 | setfill( x, y, t, f, p, a)
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| 80 | char t, p ;
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| 81 | float x, y;
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| 82 | float f[], a ;
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| 83 | {
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| 84 | /* fprintf(stderr, "Hello? %c %f %c %f\n", t, f[0], p, a); */
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| 85 | if (t == 'g' && f[0] < 0.0) return;
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| 86 | printf("gsave ");
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| 87 |
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| 88 | if ( t == 'g' ) {
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| 89 | if( f[0] >= 0.0 ) printf("%f setgray ", f[0] );
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| 90 | } else if ( t == 'c' ) {
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| 91 | printf("%f %f %f setrgbcolor ", f[0], f[1], f[2] );
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| 92 | }
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| 93 |
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| 94 | if (p == 's') {
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| 95 | printf(" fill");
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| 96 | } else if (p == '/') {
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| 97 | printf(" 6.1 10 %f %f %f 1 JSTR", a, x, y);
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| 98 | } else if (p == 'e') {
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| 99 | printf(" 6.1 10 %f %f %f 0 JSTR", a, x, y);
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| 100 | }
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| 101 | printf(" grestore\n");
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| 102 | }
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| 103 |
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| 104 | setgray( t, f)
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| 105 | char t ;
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| 106 | float f[] ;
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| 107 | {
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| 108 | if ( t == 'g' ) {
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| 109 | if( f[0] >= 0.0 ) printf("%f setgray\n", f[0] );
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| 110 | } else if ( t == 'c' ) {
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| 111 | printf("%f %f %f setrgbcolor\n", f[0], f[1], f[2] );
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| 112 | }
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| 113 | }
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| 114 |
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| 115 | printline(x1, y1,x2, y2, orientation)
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| 116 | float x1, y1, x2, y2;
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| 117 | char orientation;
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| 118 | {
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| 119 | if (orientation == 'x')
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| 120 | printf("newpath %f %f moveto %f %f lineto stroke\n", x1, y1, x2, y2);
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| 121 | else
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| 122 | printf("newpath %f %f moveto %f %f lineto stroke\n", y1, x1, y2, x2);
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| 123 | fflush(stdout);
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| 124 | }
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| 125 |
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| 126 | print_ebar(x1, y1, x2, ms, orientation)
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| 127 | float x1, y1, x2, ms;
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| 128 | char orientation;
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| 129 | {
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| 130 | printline(x1, y1, x2, y1, orientation);
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| 131 | printline(x2, y1-ms, x2, y1+ms, orientation);
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| 132 | }
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| 133 |
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| 134 | start_line(x1, y1, c)
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| 135 | float x1, y1;
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| 136 | Curve c;
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| 137 | {
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| 138 | setlinewidth(c->linethick);
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| 139 | setlinestyle(c->linetype, c->gen_linetype);
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| 140 | printf("%f %f moveto ", x1, y1);
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| 141 | }
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| 142 |
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| 143 | cont_line(x1, y1)
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| 144 | float x1, y1;
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| 145 | {
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| 146 | printf(" %f %f lineto\n", x1, y1);
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| 147 | }
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| 148 |
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| 149 | end_line()
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| 150 | {
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| 151 | printf("stroke\n");
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| 152 | setlinewidth(1.0);
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| 153 | setlinestyle('s', (Flist) 0);
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| 154 | fflush(stdout);
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| 155 |
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| 156 | }
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| 157 |
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| 158 | bezier_control(x1, y1)
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| 159 | float x1, y1;
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| 160 | {
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| 161 | printf(" %f %f ", x1, y1);
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| 162 | }
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| 163 |
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| 164 | bezier_end(x1, y1)
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| 165 | float x1, y1;
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| 166 | {
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| 167 | printf(" %f %f curveto\n", x1, y1);
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| 168 | }
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| 169 |
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| 170 |
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| 171 | start_poly(x1, y1)
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| 172 | float x1, y1;
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| 173 | {
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| 174 | printf(" newpath %f %f moveto", x1, y1);
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| 175 | }
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| 176 |
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| 177 | cont_poly(x1, y1)
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| 178 | float x1, y1;
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| 179 | {
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| 180 | printf(" %f %f lineto\n", x1, y1);
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| 181 | }
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| 182 |
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| 183 | end_poly(x, y, ftype, fill, pattern, parg)
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| 184 | float x, y;
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| 185 | char ftype, pattern ;
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| 186 | float fill[], parg;
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| 187 | {
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| 188 | printf("closepath ");
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| 189 | setfill( x, y, ftype, fill, pattern, parg );
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| 190 | printf("stroke\n");
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| 191 | fflush(stdout);
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| 192 | }
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| 193 |
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| 194 | /* Ellipse at 0, 0 -- assumes that you've already translated to x, y */
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| 195 |
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| 196 | printellipse(x, y, radius1, radius2, ftype, fill, pattern, parg)
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| 197 | char ftype, pattern;
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| 198 | float x, y, radius1, radius2, fill[], parg;
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| 199 | {
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| 200 | printf("newpath %f %f JDE\n", radius1, radius2);
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| 201 | setfill( x, y, ftype, fill, pattern, parg );
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| 202 | printf("stroke\n");
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| 203 | fflush(stdout);
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| 204 | }
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| 205 |
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| 206 | set_comment(c)
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| 207 | int c;
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| 208 | {
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| 209 | Jgraph_comment = c;
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| 210 | }
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| 211 |
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| 212 | comment(s)
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| 213 | char *s;
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| 214 | {
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| 215 | if (Jgraph_comment) printf("%% %s\n", s);
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| 216 | }
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| 217 |
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| 218 | printline_c(x1, y1, x2, y2, g)
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| 219 | float x1, y1, x2, y2;
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| 220 | Graph g;
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| 221 | {
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| 222 | printline(ctop(x1, g->x_axis), ctop(y1, g->y_axis),
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| 223 | ctop(x2, g->x_axis), ctop(y2, g->y_axis), 'x');
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| 224 | }
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| 225 |
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| 226 | print_label(l)
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| 227 | Label l;
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| 228 | {
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| 229 | int f, i, nlines;
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| 230 | float fnl;
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| 231 | char *s;
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[419] | 232 | unsigned char *s_7bit; // added by pzn@debian.org
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[418] | 233 |
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| 234 | if (l->label == CNULL) return;
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| 235 |
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| 236 | nlines = 0;
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| 237 | for (i = 0; l->label[i] != '\0'; i++) {
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| 238 | if (l->label[i] == '\n') {
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| 239 | l->label[i] = '\0';
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| 240 | nlines++;
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| 241 | }
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| 242 | }
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| 243 | fnl = (float) nlines;
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| 244 |
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| 245 | setfont(l->font, l->fontsize);
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| 246 | printf("gsave %f %f translate %f rotate\n", l->x, l->y, l->rotate);
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| 247 | if (l->graytype == 'g') {
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| 248 | printf(" %f setgray\n", l->gray[0]);
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| 249 | } else if (l->graytype == 'c') {
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| 250 | printf(" %f %f %f setrgbcolor\n", l->gray[0], l->gray[1],
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| 251 | l->gray[2]);
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| 252 | }
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| 253 |
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| 254 | if (l->vj == 'b') {
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| 255 | printf("0 %f translate ", fnl * (l->fontsize + l->linesep) * FCPI / FPPI);
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| 256 | } else if (l->vj == 'c') {
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| 257 | if (nlines % 2 == 0) {
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| 258 | printf("0 %f translate ",
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| 259 | (fnl/2.0*(l->fontsize + l->linesep) - l->fontsize/2.0)
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| 260 | * FCPI / FPPI);
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| 261 | } else {
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| 262 | printf("0 %f translate ",
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| 263 | ((fnl-1.0)/2.0*(l->fontsize + l->linesep) + l->linesep/2.0)
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| 264 | * FCPI / FPPI);
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| 265 | }
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| 266 | } else {
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| 267 | printf("0 %f translate ", -l->fontsize * FCPI / FPPI);
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| 268 | }
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| 269 |
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| 270 | s = l->label;
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[419] | 271 |
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[418] | 272 | for (i = 0; i <= nlines; i++) {
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[419] | 273 | // BEGIN added by pzn@debian.org
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| 274 | // converts 8bit ascii chars to octal value;
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| 275 | // 7bit are not converted
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| 276 | {
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| 277 | int i, j=0, len;
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| 278 | len=strlen(s);
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| 279 | s_7bit=malloc(len*4+1);
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| 280 | assert(s_7bit!=NULL);
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| 281 | for (i=0; i<=len; i++) {
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| 282 | if((unsigned char)s[i]<128) {
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| 283 | //char is ascii 7bit
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| 284 | s_7bit[j]=s[i];
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| 285 | j++;
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| 286 | } else {
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| 287 | //char must be converted to octal
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| 288 | sprintf(s_7bit+j,"\\%03o",(unsigned char)s[i]);
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| 289 | j+=4;
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| 290 | }
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| 291 | }
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| 292 | s_7bit[j-1]=0;
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| 293 | }
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| 294 | //printf("(%s) dup stringwidth pop ", s); //disabled by pzn
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| 295 | printf("(%s) dup stringwidth pop ", s_7bit); free(s_7bit);
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| 296 | // END added by pzn
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[418] | 297 | if (l->hj == 'c') {
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| 298 | printf("2 div neg 0 moveto\n");
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| 299 | } else if (l->hj == 'r') {
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| 300 | printf("neg 0 moveto\n");
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| 301 | } else {
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| 302 | printf("pop 0 0 moveto\n");
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| 303 | }
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| 304 | /* I would put string blanking in here if I had the time... */
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| 305 |
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| 306 | if (i != nlines) {
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| 307 | f = strlen(s);
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| 308 | s[f] = '\n';
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| 309 | s = &(s[f+1]);
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| 310 | printf("show 0 %f translate\n",
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| 311 | - (l->fontsize + l->linesep) * FCPI / FPPI);
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| 312 | } else {
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| 313 | printf("show\n");
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| 314 | }
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| 315 | }
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| 316 | printf("grestore\n");
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| 317 | }
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| 318 |
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| 319 | setlinewidth(size)
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| 320 | float size;
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| 321 | {
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| 322 | printf("%f setlinewidth ", size * LINEWIDTHFACTOR);
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| 323 | }
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| 324 |
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| 325 | setlinestyle(style, glist)
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| 326 | char style;
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| 327 | Flist glist;
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| 328 | {
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| 329 | Flist fl;
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| 330 |
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| 331 | switch(style) {
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| 332 | case '0': printf(" [0 2] setdash\n"); break;
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| 333 | case 's': printf(" [] 0 setdash\n"); break;
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| 334 | case '.': printf(" [1 3.200000] 0 setdash\n"); break;
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| 335 | case '-': printf(" [4.00000] 0 setdash\n"); break;
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| 336 | case 'l': printf(" [7 2] 0 setdash\n"); break;
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| 337 | case 'd': printf(" [5 3 1 3] 0 setdash\n"); break;
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| 338 | case 'D': printf(" [5 3 1 2 1 3] 0 setdash\n"); break;
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| 339 | case '2': printf(" [5 3 5 3 1 2 1 3] 0 setdash\n"); break;
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| 340 | case 'g':
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| 341 | printf(" [");
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| 342 | for (fl = first(glist); fl != nil(glist); fl = next(fl))
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| 343 | printf("%f ", fl->f);
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| 344 | printf("] 0 setdash\n");
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| 345 | break;
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| 346 | default: fprintf(stderr, "Error: Unknown line type: %c\n", style);
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| 347 | exit(1);
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| 348 | break;
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| 349 | }
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| 350 | }
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| 351 |
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