input focus: calculate areas of intersection
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@ -13,9 +13,10 @@
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#endif
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#include "draw.h"
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#define INRECT(x,y,rx,ry,rw,rh) ((x) >= (rx) && (x) < (rx)+(rw) && (y) >= (ry) && (y) < (ry)+(rh))
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#define MIN(a,b) ((a) < (b) ? (a) : (b))
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#define MAX(a,b) ((a) > (b) ? (a) : (b))
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#define INTERSECT(x,y,w,h,r) (MAX(0, MIN((x)+(w),(r).x_org+(r).width) - MAX((x),(r).x_org)) \
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* MAX(0, MIN((y)+(h),(r).y_org+(r).height) - MAX((y),(r).y_org)))
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#define MIN(a,b) ((a) < (b) ? (a) : (b))
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#define MAX(a,b) ((a) > (b) ? (a) : (b))
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typedef struct Item Item;
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struct Item {
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@ -513,19 +514,28 @@ setup(void) {
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mh = (lines + 1) * bh;
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#ifdef XINERAMA
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if((info = XineramaQueryScreens(dc->dpy, &n))) {
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int i, di;
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int a, j, di, i = 0, area = 0;
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unsigned int du;
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Window w, dw;
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Window w, pw, dw, *dws;
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XWindowAttributes wa;
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XGetInputFocus(dc->dpy, &w, &di);
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if(w != root && w != PointerRoot && w != None && XGetWindowAttributes(dc->dpy, w, &wa))
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XTranslateCoordinates(dc->dpy, w, root, wa.x, wa.y, &x, &y, &dw);
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else
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XQueryPointer(dc->dpy, root, &dw, &dw, &x, &y, &di, &di, &du);
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for(i = 0; i < n-1; i++)
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if(INRECT(x, y, info[i].x_org, info[i].y_org, info[i].width, info[i].height))
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break;
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if(w != root && w != PointerRoot && w != None) {
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do {
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if(XQueryTree(dc->dpy, (pw = w), &dw, &w, &dws, &du) && dws)
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XFree(dws);
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} while(w != root && w != pw);
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if(XGetWindowAttributes(dc->dpy, pw, &wa))
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for(j = 0; j < n; j++)
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if((a = INTERSECT(wa.x, wa.y, wa.width, wa.height, info[j])) > area) {
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area = a;
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i = j;
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}
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}
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if(!area && XQueryPointer(dc->dpy, root, &dw, &dw, &x, &y, &di, &di, &du))
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for(i = 0; i < n; i++)
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if(INTERSECT(x, y, 1, 1, info[i]))
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break;
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x = info[i].x_org;
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y = info[i].y_org + (topbar ? 0 : info[i].height - mh);
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mw = info[i].width;
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