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author | rsc <devnull@localhost> | 2003-09-30 17:47:42 +0000 |
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committer | rsc <devnull@localhost> | 2003-09-30 17:47:42 +0000 |
commit | 76193d7cb0457807b2f0b95f909ab5de19480cd7 (patch) | |
tree | 97e538c7e38181431e90289a0fe8b6b7ce1f8f3c /src/libdraw/ellipse.c | |
parent | ed7c8e8d02c02bdbff1e88a6d8d1419f39af48ad (diff) | |
download | plan9port-76193d7cb0457807b2f0b95f909ab5de19480cd7.tar.gz plan9port-76193d7cb0457807b2f0b95f909ab5de19480cd7.tar.bz2 plan9port-76193d7cb0457807b2f0b95f909ab5de19480cd7.zip |
Initial revision
Diffstat (limited to 'src/libdraw/ellipse.c')
-rw-r--r-- | src/libdraw/ellipse.c | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/src/libdraw/ellipse.c b/src/libdraw/ellipse.c new file mode 100644 index 00000000..7a063f11 --- /dev/null +++ b/src/libdraw/ellipse.c @@ -0,0 +1,82 @@ +#include <u.h> +#include <libc.h> +#include <draw.h> + +static +void +doellipse(int cmd, Image *dst, Point *c, int xr, int yr, int thick, Image *src, Point *sp, int alpha, int phi, Drawop op) +{ + uchar *a; + + _setdrawop(dst->display, op); + + a = bufimage(dst->display, 1+4+4+2*4+4+4+4+2*4+2*4); + if(a == 0){ + fprint(2, "image ellipse: %r\n"); + return; + } + a[0] = cmd; + BPLONG(a+1, dst->id); + BPLONG(a+5, src->id); + BPLONG(a+9, c->x); + BPLONG(a+13, c->y); + BPLONG(a+17, xr); + BPLONG(a+21, yr); + BPLONG(a+25, thick); + BPLONG(a+29, sp->x); + BPLONG(a+33, sp->y); + BPLONG(a+37, alpha); + BPLONG(a+41, phi); +} + +void +ellipse(Image *dst, Point c, int a, int b, int thick, Image *src, Point sp) +{ + doellipse('e', dst, &c, a, b, thick, src, &sp, 0, 0, SoverD); +} + +void +ellipseop(Image *dst, Point c, int a, int b, int thick, Image *src, Point sp, Drawop op) +{ + doellipse('e', dst, &c, a, b, thick, src, &sp, 0, 0, op); +} + +void +fillellipse(Image *dst, Point c, int a, int b, Image *src, Point sp) +{ + doellipse('E', dst, &c, a, b, 0, src, &sp, 0, 0, SoverD); +} + +void +fillellipseop(Image *dst, Point c, int a, int b, Image *src, Point sp, Drawop op) +{ + doellipse('E', dst, &c, a, b, 0, src, &sp, 0, 0, op); +} + +void +arc(Image *dst, Point c, int a, int b, int thick, Image *src, Point sp, int alpha, int phi) +{ + alpha |= 1<<31; + doellipse('e', dst, &c, a, b, thick, src, &sp, alpha, phi, SoverD); +} + +void +arcop(Image *dst, Point c, int a, int b, int thick, Image *src, Point sp, int alpha, int phi, Drawop op) +{ + alpha |= 1<<31; + doellipse('e', dst, &c, a, b, thick, src, &sp, alpha, phi, op); +} + +void +fillarc(Image *dst, Point c, int a, int b, Image *src, Point sp, int alpha, int phi) +{ + alpha |= 1<<31; + doellipse('E', dst, &c, a, b, 0, src, &sp, alpha, phi, SoverD); +} + +void +fillarcop(Image *dst, Point c, int a, int b, Image *src, Point sp, int alpha, int phi, Drawop op) +{ + alpha |= 1<<31; + doellipse('E', dst, &c, a, b, 0, src, &sp, alpha, phi, op); +} |