Rosetta Code

Greyscale bars/Display: Difference between revisions

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Greyscale bars/Display (view source)

Revision as of 04:46, 11 March 2012

80 bytes removed ,  12 years ago
m
→‎{{header|C}}: simplify
m (→‎{{header|C}}: simplify)
Line 93:
}
/* make a shaded pixbuf */
voidint expose_event (GtkWidget *widget,GdkEventExpose *event,gpointer data) {
int r,c,f,x=0;
cairo_t *cr;
cr = gdk_cairo_create (widget->window);
cairo_scale (cr,5,50);
cairo_set_line_width (cr,1.2);
for (r=0;r<4;r++s) {
c = (r&1)*64-(r%2);
do gsplot (cr,x++%64,r,c/f*63.0/(64.0/f-1<<(3-r))/63(8*(1<<r)-1.0));▼
do { /* some dyslexic maths */
while f((c+=2*!(r%2)-1<<3)!=(!(r%2))*64-(r%2));
▲ gsplot (cr,x++%64,r,c/f*63.0/(64.0/f-1)/63.0);
c+=2*!(r%2)-1;
} while (c != (!(r%2))*64-(r%2));
} cairo_destroy (cr);
return FALSE;
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