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Allow image rotation for SVG and EPS files

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This commit is contained in:
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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42
backend/svg.c
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@ -224,18 +224,33 @@ INTERNAL int svg_plot(struct zint_symbol *symbol) {
hex = symbol->vector->hexagons;
while (hex) {
radius = hex->diameter / 2.0;
ay = hex->y + (1.0 * radius);
by = hex->y + (0.5 * radius);
cy = hex->y - (0.5 * radius);
dy = hex->y - (1.0 * radius);
ey = hex->y - (0.5 * radius);
fy = 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 = hex->y + (1.0 * radius);
by = hex->y + (0.5 * radius);
cy = hex->y - (0.5 * radius);
dy = hex->y - (1.0 * radius);
ey = hex->y - (0.5 * radius);
fy = 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 = hex->y;
by = hex->y + (0.86 * radius);
cy = hex->y + (0.86 * radius);
dy = hex->y;
ey = hex->y - (0.86 * radius);
fy = 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(fsvg, " <path d=\"M %.2f %.2f L %.2f %.2f L %.2f %.2f L %.2f %.2f L %.2f %.2f L %.2f %.2f Z\"", ax, ay, bx, by, cx, cy, dx, dy, ex, ey, fx, fy);
if (fg_alpha != 0xff) {
fprintf(fsvg, " opacity=\"%.3f\"", (float) fg_alpha / 255.0);
@ -270,6 +285,9 @@ INTERNAL int svg_plot(struct zint_symbol *symbol) {
if (fg_alpha != 0xff) {
fprintf(fsvg, " opacity=\"%.3f\"", (float) fg_alpha / 255.0);
}
if (string->rotation != 0) {
fprintf(fsvg, " transform=\"rotate(%d,%.2f,%.2f)\"", string->rotation, string->x, string->y);
}
fprintf(fsvg, " >\n");
make_html_friendly(string->text, html_string);
fprintf(fsvg, " %s\n", html_string);