dwm/patch/dragcfact.c

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C
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void
dragcfact(const Arg *arg)
{
int prev_x, prev_y, dist_x, dist_y;
float fact;
Client *c;
XEvent ev;
Time lasttime = 0;
if (!(c = selmon->sel))
return;
if (c->isfloating) {
resizemouse(arg);
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return;
}
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#if !FAKEFULLSCREEN_PATCH
#if FAKEFULLSCREEN_CLIENT_PATCH
if (c->isfullscreen && !c->fakefullscreen) /* no support resizing fullscreen windows by mouse */
return;
#else
if (c->isfullscreen) /* no support resizing fullscreen windows by mouse */
return;
#endif // FAKEFULLSCREEN_CLIENT_PATCH
#endif // !FAKEFULLSCREEN_PATCH
restack(selmon);
if (XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
None, cursor[CurIronCross]->cursor, CurrentTime) != GrabSuccess)
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return;
#if WARP_PATCH
ignore_warp = 1;
#endif // WARP_PATCH
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XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w/2, c->h/2);
prev_x = prev_y = -999999;
do {
XMaskEvent(dpy, MOUSEMASK|ExposureMask|SubstructureRedirectMask, &ev);
switch(ev.type) {
case ConfigureRequest:
case Expose:
case MapRequest:
handler[ev.type](&ev);
break;
case MotionNotify:
if ((ev.xmotion.time - lasttime) <= (1000 / 60))
continue;
lasttime = ev.xmotion.time;
if (prev_x == -999999) {
prev_x = ev.xmotion.x_root;
prev_y = ev.xmotion.y_root;
}
dist_x = ev.xmotion.x - prev_x;
dist_y = ev.xmotion.y - prev_y;
if (abs(dist_x) > abs(dist_y)) {
fact = (float) 4.0 * dist_x / c->mon->ww;
} else {
fact = (float) -4.0 * dist_y / c->mon->wh;
}
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if (fact)
setcfact(&((Arg) { .f = fact }));
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prev_x = ev.xmotion.x;
prev_y = ev.xmotion.y;
break;
}
} while (ev.type != ButtonRelease);
#if WARP_PATCH
ignore_warp = 0;
#endif // WARP_PATCH
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XWarpPointer(dpy, None, c->win, 0, 0, 0, 0, c->w/2, c->h/2);
XUngrabPointer(dpy, CurrentTime);
while (XCheckMaskEvent(dpy, EnterWindowMask, &ev));
}