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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 1.48 2013/04/30 21:12:20 okan Exp $
*/
#include <sys/param.h>
#include <sys/queue.h>
#include <err.h>
#include <errno.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;
XWindowAttributes winattr;
XSetWindowAttributes rootattr;
u_int nwins, i;
sc = xcalloc(1, sizeof(*sc));
sc->which = which;
sc->visual = DefaultVisual(X_Dpy, sc->which);
sc->colormap = DefaultColormap(X_Dpy, sc->which);
sc->rootwin = RootWindow(X_Dpy, sc->which);
xu_ewmh_net_supported(sc);
xu_ewmh_net_supported_wm_check(sc);
conf_gap(&Conf, sc);
conf_color(&Conf, sc);
conf_font(&Conf, sc);
screen_update_geometry(sc);
TAILQ_INIT(&sc->mruq);
group_init(sc);
menu_init(sc);
rootattr.cursor = Cursor_normal;
rootattr.event_mask = SubstructureRedirectMask|SubstructureNotifyMask|
PropertyChangeMask|EnterWindowMask|LeaveWindowMask|
ColormapChangeMask|BUTTONMASK;
XChangeWindowAttributes(X_Dpy, sc->rootwin,
CWEventMask|CWCursor, &rootattr);
/* Deal with existing clients. */
XQueryTree(X_Dpy, sc->rootwin, &w0, &w1, &wins, &nwins);
for (i = 0; i < nwins; i++) {
XGetWindowAttributes(X_Dpy, wins[i], &winattr);
if (winattr.override_redirect ||
winattr.map_state != IsViewable)
continue;
(void)client_new(wins[i], sc, winattr.map_state != IsUnmapped);
}
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_fromroot(Window rootwin)
{
struct screen_ctx *sc;
TAILQ_FOREACH(sc, &Screenq, entry)
if (sc->rootwin == rootwin)
return (sc);
/* XXX FAIL HERE */
return (TAILQ_FIRST(&Screenq));
}
void
screen_updatestackingorder(struct screen_ctx *sc)
{
Window *wins, w0, w1;
struct client_ctx *cc;
u_int nwins, i, s;
if (!XQueryTree(X_Dpy, sc->rootwin, &w0, &w1, &wins, &nwins))
return;
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)
{
XineramaScreenInfo *info;
struct geom geom;
int i;
geom = sc->work;
if (sc->xinerama == NULL)
return (geom);
for (i = 0; i < sc->xinerama_no; i++) {
info = &sc->xinerama[i];
if (x >= info->x_org && x < info->x_org + info->width &&
y >= info->y_org && y < info->y_org + info->height) {
geom.x = info->x_org + sc->gap.left;
geom.y = info->y_org + sc->gap.top;
geom.w = info->width - (sc->gap.left + sc->gap.right);
geom.h = info->height - (sc->gap.top + sc->gap.bottom);
break;
}
}
return (geom);
}
void
screen_update_geometry(struct screen_ctx *sc)
{
XineramaScreenInfo *info = NULL;
int info_no = 0;
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.x = sc->view.x + sc->gap.left;
sc->work.y = sc->view.y + sc->gap.top;
sc->work.w = sc->view.w - (sc->gap.left + sc->gap.right);
sc->work.h = sc->view.h - (sc->gap.top + sc->gap.bottom);
/* RandR event may have a CTRC added or removed. */
if (XineramaIsActive(X_Dpy))
info = XineramaQueryScreens(X_Dpy, &info_no);
if (sc->xinerama != NULL)
XFree(sc->xinerama);
sc->xinerama = info;
sc->xinerama_no = info_no;
xu_ewmh_net_desktop_geometry(sc);
xu_ewmh_net_workarea(sc);
}
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