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/* Primitives for scale/offset transforms. */
#ifndef XFORM_H
#define XFORM_H
#include "rect.h"
typedef struct xform {
double scale;
double off_x, off_y;
} xform;
void xform_point (point *dst, const xform *x, const point *src);
void xform_rect (rect *dst, const xform *x, const rect *src);
void xform_inv (xform *dst, const xform *src);
/* This is also where xform_compose would go. */
/* Would transformations of regions go here or in region? Probably in
region, just because there's a lot more region stuff than xform
stuff going on in those routines. That just goes to show you the
perils of breaking code into modules. */
#endif
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