shithub: libscroll

ref: c61a6b9909e6a2b16ac76a137bfb29c9a919c339
dir: /scroll.h/

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typedef struct Scroll Scroll;

struct Scroll {
	Rectangle r;
	uint p₀, p₁, tot;
	Image *image, *cols[NCOL];
};

Rectangle scrollinit(Scroll *s, Rectangle r, Image *b, Image **cols);
void scrollpos(Scroll *s, uint p₀, uint p₁, uint tot);
int scrollactive(Scroll *s, Mouse *m);
uint scrollscr(Scroll *s, Mouse *m);