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int
getcurrenttag(Monitor *m) {
unsigned int i;
for (i = 0; i < LENGTH(tags) && !(m->tagset[m->seltags] & (1 << i)); i++);
return i < LENGTH(tags) ? i : 0;
}
void
homecanvas(const Arg *arg) {
Client *c;
int tagidx = getcurrenttag(selmon);
int cx = selmon->canvas[tagidx].cx;
int cy = selmon->canvas[tagidx].cy;
for (c = selmon->clients; c; c = c->next) {
if (c->tags & (1 << tagidx)) {
c->x -= cx;
c->y -= cy;
XMoveWindow(dpy, c->win, c->x, c->y);
}
}
selmon->canvas[tagidx].cx = 0;
selmon->canvas[tagidx].cy = 0;
drawbar(selmon);
XFlush(dpy);
}
void
movecanvas(const Arg *arg)
{
if (selmon->lt[selmon->sellt]->arrange != NULL)
return;
if (selmon->sel && selmon->sel->isfullscreen)
return;
int tagidx = getcurrenttag(selmon);
int dx = 0, dy = 0;
#ifndef MOVE_CANVAS_STEP
#define MOVE_CANVAS_STEP 120
#endif
switch(arg->i) {
case 0: dx = -MOVE_CANVAS_STEP; break;
case 1: dx = MOVE_CANVAS_STEP; break;
case 2: dy = -MOVE_CANVAS_STEP; break;
case 3: dy = MOVE_CANVAS_STEP; break;
}
selmon->canvas[tagidx].cx -= dx;
selmon->canvas[tagidx].cy -= dy;
Client *c;
for (c = selmon->clients; c; c = c->next) {
if (ISVISIBLE(c)) {
c->x -= dx;
c->y -= dy;
XMoveWindow(dpy, c->win, c->x, c->y);
}
}
drawbar(selmon);
}
void
movecanvasmouse(const Arg *arg) {
if (selmon->lt[selmon->sellt]->arrange != NULL)
return;
if (selmon->sel && selmon->sel->isfullscreen)
return;
int start_x, start_y;
Window dummy;
int di;
unsigned int dui;
int tagidx = getcurrenttag(selmon);
float multiplier = arg ? arg->f : 1.0f;
float accum_x = 0.0f, accum_y = 0.0f;
#if LOCK_MOVE_RESIZE_REFRESH_RATE
Time lasttime = 0;
#endif
if (!XQueryPointer(dpy, root, &dummy, &dummy, &start_x, &start_y, &di, &di, &dui))
return;
if (XGrabPointer(dpy, root, False, MOUSEMASK, GrabModeAsync, GrabModeAsync,
None, cursor[CurMove]->cursor, CurrentTime) != GrabSuccess)
return;
XEvent ev;
do {
XMaskEvent(dpy, MOUSEMASK|ExposureMask|SubstructureRedirectMask, &ev);
switch (ev.type) {
case MotionNotify:
{
#if LOCK_MOVE_RESIZE_REFRESH_RATE
if ((ev.xmotion.time - lasttime) <= (1000 / refreshrate))
continue;
lasttime = ev.xmotion.time;
#endif
int nx = ev.xmotion.x - start_x;
int ny = ev.xmotion.y - start_y;
/* accumulate subpixel remainder to not lose fractional pixels:
multiplier=0.5, nx=1: accum=0.5, dx=0 --- skip
nx=1: accum=1.0, dx=1 --- move
*/
accum_x += nx * multiplier;
accum_y += ny * multiplier;
int dx = (int)accum_x;
int dy = (int)accum_y;
accum_x -= dx;
accum_y -= dy;
for (Client *c = selmon->clients; c; c = c->next) {
if (c->tags & (1 << tagidx)) {
c->x += dx;
c->y += dy;
XMoveWindow(dpy, c->win, c->x, c->y);
}
}
selmon->canvas[tagidx].cx += dx;
selmon->canvas[tagidx].cy += dy;
drawbar(selmon);
start_x = ev.xmotion.x;
start_y = ev.xmotion.y;
} break;
}
} while (ev.type != ButtonRelease);
XUngrabPointer(dpy, CurrentTime);
}
void
save_canvas_positions(Monitor *m) {
Client *c;
int tagidx = getcurrenttag(m);
m->canvas[tagidx].saved_cx = m->canvas[tagidx].cx;
m->canvas[tagidx].saved_cy = m->canvas[tagidx].cy;
for (c = m->clients; c; c = c->next) {
if (ISVISIBLE(c)) {
c->saved_cx = c->x + m->canvas[tagidx].cx;
c->saved_cy = c->y + m->canvas[tagidx].cy;
c->saved_cw = c->w;
c->saved_ch = c->h;
c->was_on_canvas = 1;
}
}
}
void
restore_canvas_positions(Monitor *m) {
Client *c;
int tagidx = getcurrenttag(m);
m->canvas[tagidx].cx = m->canvas[tagidx].saved_cx;
m->canvas[tagidx].cy = m->canvas[tagidx].saved_cy;
for (c = m->clients; c; c = c->next) {
if (ISVISIBLE(c) && c->was_on_canvas) {
if (c->isfullscreen)
continue;
c->isfloating = 1;
int target_x = c->saved_cx - m->canvas[tagidx].cx;
int target_y = c->saved_cy - m->canvas[tagidx].cy;
c->x = target_x;
c->y = target_y;
c->w = c->saved_cw;
c->h = c->saved_ch;
XMoveResizeWindow(dpy, c->win, target_x, target_y, c->w, c->h);
configure(c);
}
}
XSync(dpy, False);
}
void
centerwindow(const Arg *arg)
{
Client *c = (arg && arg->v) ? (Client *)arg->v : selmon->sel;
if (!c || !c->mon || c->mon->lt[c->mon->sellt]->arrange != NULL)
return;
Monitor *m = c->mon;
int tagidx = getcurrenttag(m);
int dx = (m->wx + m->ww - WIDTH(c)) / 2 - c->x;
int dy = m->wy + (m->wh / 2) - (c->y + HEIGHT(c) / 2);
if (dx == 0 && dy == 0)
return;
Client *tmp;
for (tmp = m->clients; tmp; tmp = tmp->next) {
if (ISVISIBLE(tmp)) {
tmp->x += dx;
tmp->y += dy;
XMoveWindow(dpy, tmp->win, tmp->x, tmp->y);
}
}
m->canvas[tagidx].cx += dx;
m->canvas[tagidx].cy += dy;
drawbar(m);
}
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