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https://github.com/0intro/wmii
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Add screen.c
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99
cmd/wmii/screen.c
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99
cmd/wmii/screen.c
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/* Copyright ©2006-2008 Kris Maglione <maglione.k at Gmail>
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* See LICENSE file for license details.
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*/
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#include "dat.h"
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#include <math.h>
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#include <stdlib.h>
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#include "fns.h"
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#ifdef notdef
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void
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mapscreens(void) {
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WMScreen *s, *ss;
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Rectangle r;
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int i, j;
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#define frob(left, min, max, x, y) \
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if(Dy(r) > 0) /* If they intersect at some point on this axis */ \
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if(ss->r.min.x < s->r.min.x) { \
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if((!s->left) \
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|| (abs(Dy(r)) < abs(s->left.max.x - s->min.x))) \
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s->left = ss; \
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}
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/* Variable hell? Certainly. */
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for(i=0; i < nscreens; i++) {
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s = screens[i];
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for(j=0; j < nscreens; j++) {
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if(i == j)
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continue;
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ss = screens[j];
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r = rect_intersection(ss->r, s->r);
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frob(left, min, max, x, y);
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frob(right, max, min, x, y);
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frob(atop, min, max, y, x);
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frob(below, max, min, y, x);
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}
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}
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#undef frob
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}
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int findscreen(Rectangle, int);
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int
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findscreen(Rectangle rect, int direction) {
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Rectangle r;
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WMScreen *ss, *s;
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int best, i, j;
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best = -1;
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#define frob(min, max, x, y)
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if(Dy(r) > 0) /* If they intersect at some point on this axis */
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if(ss->r.min.x < rect.min.x) {
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if(best == -1
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|| (abs(ss->r.max.x - rect.min.x) < abs(screens[best]->r.max.x - rect.min.x)))
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best = s->idx;
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}
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/* Variable hell? Certainly. */
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for(i=0; i < nscreens; i++) {
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ss = screens[j];
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r = rect_intersection(ss->r, rect);
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switch(direction) {
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default:
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return -1;
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case West:
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frob(min, max, x, y);
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break;
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case East:
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frob(max, min, x, y);
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break;
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case North:
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frob(min, max, y, x);
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break;
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case South:
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frob(max, min, y, x);
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break;
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}
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}
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#undef frob
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}
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#endif
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int
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ownerscreen(Rectangle r) {
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Rectangle isect;
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int s, a, best, besta;
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SET(besta);
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best = -1;
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for(s=0; s < nscreens; s++) {
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isect = rect_intersection(r, screens[s]->r);
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a = Dx(isect) * Dy(isect);
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if(best < 0 || a > besta) {
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besta = a;
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best = s;
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}
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}
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return best;
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}
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