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Allow image rotation for SVG and EPS files

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Robin Stuart 2020-08-05 21:23:11 +01:00
parent 980e039743
commit 79aaa5304d
6 changed files with 215 additions and 39 deletions
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49
backend/ps.c
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@ -2,7 +2,7 @@
/*
libzint - the open source barcode library
Copyright (C) 2009-2018 Robin Stuart <rstuart114@gmail.com>
Copyright (C) 2009-2020 Robin Stuart <rstuart114@gmail.com>
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
@ -269,18 +269,33 @@ INTERNAL int ps_plot(struct zint_symbol *symbol) {
hex = symbol->vector->hexagons;
while (hex) {
radius = hex->diameter / 2.0;
ay = (symbol->vector->height - hex->y) + (1.0 * radius);
by = (symbol->vector->height - hex->y) + (0.5 * radius);
cy = (symbol->vector->height - hex->y) - (0.5 * radius);
dy = (symbol->vector->height - hex->y) - (1.0 * radius);
ey = (symbol->vector->height - hex->y) - (0.5 * radius);
fy = (symbol->vector->height - hex->y) + (0.5 * radius);
ax = hex->x;
bx = hex->x + (0.86 * radius);
cx = hex->x + (0.86 * radius);
dx = hex->x;
ex = hex->x - (0.86 * radius);
fx = hex->x - (0.86 * radius);
if ((hex->rotation == 0) || (hex->rotation == 180)) {
ay = (symbol->vector->height - hex->y) + (1.0 * radius);
by = (symbol->vector->height - hex->y) + (0.5 * radius);
cy = (symbol->vector->height - hex->y) - (0.5 * radius);
dy = (symbol->vector->height - hex->y) - (1.0 * radius);
ey = (symbol->vector->height - hex->y) - (0.5 * radius);
fy = (symbol->vector->height - hex->y) + (0.5 * radius);
ax = hex->x;
bx = hex->x + (0.86 * radius);
cx = hex->x + (0.86 * radius);
dx = hex->x;
ex = hex->x - (0.86 * radius);
fx = hex->x - (0.86 * radius);
} else {
ay = (symbol->vector->height - hex->y);
by = (symbol->vector->height - hex->y) + (0.86 * radius);
cy = (symbol->vector->height - hex->y) + (0.86 * radius);
dy = (symbol->vector->height - hex->y);
ey = (symbol->vector->height - hex->y) - (0.86 * radius);
fy = (symbol->vector->height - hex->y) - (0.86 * radius);
ax = hex->x - (1.0 * radius);
bx = hex->x - (0.5 * radius);
cx = hex->x + (0.5 * radius);
dx = hex->x + (1.0 * radius);
ex = hex->x + (0.5 * radius);
fx = hex->x - (0.5 * radius);
}
fprintf(feps, "%.2f %.2f %.2f %.2f %.2f %.2f %.2f %.2f %.2f %.2f %.2f %.2f TH\n", ax, ay, bx, by, cx, cy, dx, dy, ex, ey, fx, fy);
hex = hex->next;
}
@ -312,15 +327,23 @@ INTERNAL int ps_plot(struct zint_symbol *symbol) {
// Text
string = symbol->vector->strings;
while (string) {
fprintf(feps, "matrix currentmatrix\n");
fprintf(feps, "/Helvetica findfont\n");
fprintf(feps, "%.2f scalefont setfont\n", string->fsize);
fprintf(feps, " 0 0 moveto %.2f %.2f translate 0.00 rotate 0 0 moveto\n", string->x, (symbol->vector->height - string->y));
fprintf(feps, " (%s) stringwidth\n", string->text);
if (string->rotation != 0) {
fprintf(feps, "gsave\n");
fprintf(feps, "%d rotate\n", 360 - string->rotation);
}
fprintf(feps, "pop\n");
fprintf(feps, "-2 div 0 rmoveto\n");
fprintf(feps, " (%s) show\n", string->text);
if (string->rotation != 0) {
fprintf(feps, "grestore\n");
}
fprintf(feps, "setmatrix\n");
string = string->next;
}