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/*
* calmwm - the calm window manager
*
* Copyright (c) 2004 Marius Aamodt Eriksen <marius@monkey.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
* $OpenBSD: screen.c,v 1.73 2015/06/26 16:11:21 okan Exp $
*/
#include <sys/types.h>
#include <sys/queue.h>
#include <err.h>
#include <errno.h>
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "calmwm.h"
void
screen_init(int which)
{
struct screen_ctx *sc;
Window *wins, w0, w1;
XSetWindowAttributes rootattr;
unsigned int nwins, i;
sc = xmalloc(sizeof(*sc));
TAILQ_INIT(&sc->clientq);
TAILQ_INIT(&sc->regionq);
TAILQ_INIT(&sc->groupq);
sc->which = which;
sc->rootwin = RootWindow(X_Dpy, sc->which);
sc->cycling = 0;
sc->hideall = 0;
conf_screen(sc);
xu_ewmh_net_supported(sc);
xu_ewmh_net_supported_wm_check(sc);
screen_update_geometry(sc);
for (i = 0; i < CALMWM_NGROUPS; i++)
group_init(sc, i);
xu_ewmh_net_desktop_names(sc);
xu_ewmh_net_wm_desktop_viewport(sc);
xu_ewmh_net_wm_number_of_desktops(sc);
xu_ewmh_net_showing_desktop(sc);
xu_ewmh_net_virtual_roots(sc);
rootattr.cursor = Conf.cursor[CF_NORMAL];
rootattr.event_mask = SubstructureRedirectMask|SubstructureNotifyMask|
PropertyChangeMask|EnterWindowMask|LeaveWindowMask|
ColormapChangeMask|BUTTONMASK;
XChangeWindowAttributes(X_Dpy, sc->rootwin,
CWEventMask|CWCursor, &rootattr);
/* Deal with existing clients. */
if (XQueryTree(X_Dpy, sc->rootwin, &w0, &w1, &wins, &nwins)) {
for (i = 0; i < nwins; i++)
(void)client_init(wins[i], sc);
XFree(wins);
}
screen_updatestackingorder(sc);
if (HasRandr)
XRRSelectInput(X_Dpy, sc->rootwin, RRScreenChangeNotifyMask);
TAILQ_INSERT_TAIL(&Screenq, sc, entry);
XSync(X_Dpy, False);
}
struct screen_ctx *
screen_find(Window win)
{
struct screen_ctx *sc;
TAILQ_FOREACH(sc, &Screenq, entry) {
if (sc->rootwin == win)
return(sc);
}
/* XXX FAIL HERE */
return(TAILQ_FIRST(&Screenq));
}
void
screen_updatestackingorder(struct screen_ctx *sc)
{
Window *wins, w0, w1;
struct client_ctx *cc;
unsigned int nwins, i, s;
if (XQueryTree(X_Dpy, sc->rootwin, &w0, &w1, &wins, &nwins)) {
for (s = 0, i = 0; i < nwins; i++) {
/* Skip hidden windows */
if ((cc = client_find(wins[i])) == NULL ||
cc->flags & CLIENT_HIDDEN)
continue;
cc->stackingorder = s++;
}
XFree(wins);
}
}
/*
* Find which xinerama screen the coordinates (x,y) is on.
*/
struct geom
screen_find_xinerama(struct screen_ctx *sc, int x, int y, int flags)
{
struct region_ctx *region;
struct geom geom = sc->work;
TAILQ_FOREACH(region, &sc->regionq, entry) {
if (x >= region->area.x && x < region->area.x+region->area.w &&
y >= region->area.y && y < region->area.y+region->area.h) {
geom = region->area;
break;
}
}
if (flags & CWM_GAP)
geom = screen_apply_gap(sc, geom);
return(geom);
}
void
screen_update_geometry(struct screen_ctx *sc)
{
struct region_ctx *region;
int i;
sc->view.x = 0;
sc->view.y = 0;
sc->view.w = DisplayWidth(X_Dpy, sc->which);
sc->view.h = DisplayHeight(X_Dpy, sc->which);
sc->work = screen_apply_gap(sc, sc->view);
while ((region = TAILQ_FIRST(&sc->regionq)) != NULL) {
TAILQ_REMOVE(&sc->regionq, region, entry);
free(region);
}
if (HasRandr) {
XRRScreenResources *sr;
XRRCrtcInfo *ci;
sr = XRRGetScreenResources(X_Dpy, sc->rootwin);
for (i = 0, ci = NULL; i < sr->ncrtc; i++) {
ci = XRRGetCrtcInfo(X_Dpy, sr, sr->crtcs[i]);
if (ci == NULL)
continue;
if (ci->noutput == 0) {
XRRFreeCrtcInfo(ci);
continue;
}
region = xmalloc(sizeof(*region));
region->num = i;
region->area.x = ci->x;
region->area.y = ci->y;
region->area.w = ci->width;
region->area.h = ci->height;
TAILQ_INSERT_TAIL(&sc->regionq, region, entry);
XRRFreeCrtcInfo(ci);
}
XRRFreeScreenResources(sr);
}
xu_ewmh_net_desktop_geometry(sc);
xu_ewmh_net_workarea(sc);
}
struct geom
screen_apply_gap(struct screen_ctx *sc, struct geom geom)
{
geom.x += sc->gap.left;
geom.y += sc->gap.top;
geom.w -= (sc->gap.left + sc->gap.right);
geom.h -= (sc->gap.top + sc->gap.bottom);
return(geom);
}
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