awesome/screen.c

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/*
* screen.c - screen management
*
* Copyright © 2007 Julien Danjou <julien@danjou.info>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
*/
#include "util.h"
#include "screen.h"
#include "tag.h"
#include "layout.h"
#include "statusbar.h"
/** Get screens info
* \param disp Display ref
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* \param screen Screen number
* \param statusbar statusbar
* \return ScreenInfo struct array with all screens info
*/
ScreenInfo *
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get_screen_info(Display *disp, int screen, Statusbar *statusbar)
{
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int i, screen_number = 0;
ScreenInfo *si;
if(XineramaIsActive(disp))
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si = XineramaQueryScreens(disp, &screen_number);
else
{
/* emulate Xinerama info but only fill the screen we want */
si = p_new(ScreenInfo, screen + 1);
si[screen].width = DisplayWidth(disp, screen);
si[screen].height = DisplayHeight(disp, screen);
si[screen].x_org = 0;
si[screen].y_org = 0;
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screen_number = screen + 1;
}
if(statusbar)
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for(i = 0; i < screen_number; i++)
switch(statusbar->position)
{
case BarTop:
si[i].y_org += statusbar->height;
case BarBot:
si[i].height -= statusbar->height;
break;
case BarLeft:
si[i].x_org += statusbar->height;
case BarRight:
si[i].width -= statusbar->height;
break;
}
return si;
}
/** Get display info
* \param disp Display ref
* \param screen Screen number
* \param statusbar the statusbar
* \return ScreenInfo struct pointer with all display info
*/
ScreenInfo *
get_display_info(Display *disp, int screen, Statusbar *statusbar)
{
ScreenInfo *si;
si = p_new(ScreenInfo, 1);
si->x_org = 0;
si->y_org = statusbar && statusbar->position == BarTop ? statusbar->height : 0;
si->width = DisplayWidth(disp, screen);
si->height = DisplayHeight(disp, screen) -
(statusbar && (statusbar->position == BarTop || statusbar->position == BarBot) ? statusbar->height : 0);
return si;
}
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/** Return the Xinerama screen number where the coordinates belongs to
* \param disp Display ref
* \param x x coordinate of the window
* \param y y coordinate of the window
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* \return screen number or DefaultScreen of disp on no match
*/
int
get_screen_bycoord(Display *disp, int x, int y)
{
ScreenInfo *si;
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int i;
/* don't waste our time */
if(!XineramaIsActive(disp))
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return DefaultScreen(disp);
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si = get_screen_info(disp, 0, NULL);
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for(i = 0; i < get_screen_count(disp); i++)
if((x < 0 || (x >= si[i].x_org && x < si[i].x_org + si[i].width))
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&& (y < 0 || (y >= si[i].y_org && y < si[i].y_org + si[i].height)))
{
p_delete(&si);
return i;
}
p_delete(&si);
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return DefaultScreen(disp);
}
/** Return the actual screen count
* \param disp Display ref
* \return the number of screen available
*/
int
get_screen_count(Display *disp)
{
int screen_number;
if(XineramaIsActive(disp))
XineramaQueryScreens(disp, &screen_number);
else
return ScreenCount(disp);
return screen_number;
}
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/** This returns the real X screen number for a logical
* screen if Xinerama is active.
* \param disp Display ref
* \param screen the logical screen
* \return the X screen
*/
int
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get_phys_screen(Display *disp, int screen)
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{
if(XineramaIsActive(disp))
return DefaultScreen(disp);
return screen;
}
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/** Move a client to a virtual screen
* \param c the client
* \param acf_new the awesome_config for the new screen
* \param doresize set to True if we also move the client to the new x_org and
* y_org of the new screen
*/
void
move_client_to_screen(Client *c, awesome_config *acf_new, Bool doresize)
{
int old_screen = c->screen;
c->screen = acf_new->screen;
if(doresize && old_screen != c->screen)
{
ScreenInfo *si, *si_old;
si = get_screen_info(c->display, c->screen, NULL);
si_old = get_screen_info(c->display, old_screen, NULL);
/* compute new coords in new screen */
c->rx = (c->rx - si_old[old_screen].x_org) + si[c->screen].x_org;
c->ry = (c->ry - si_old[old_screen].y_org) + si[c->screen].y_org;
/* check that new coords are still in the screen */
if(c->rw > si[c->screen].width)
c->rw = si[c->screen].width;
if(c->rh > si[c->screen].height)
c->rh = si[c->screen].height;
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if(c->rx + c->rw >= si[c->screen].x_org + si[c->screen].width)
c->rx = si[c->screen].x_org + si[c->screen].width - c->rw - 2 * c->border;
if(c->ry + c->rh >= si[c->screen].y_org + si[c->screen].height)
c->ry = si[c->screen].y_org + si[c->screen].height - c->rh - 2 * c->border;
client_resize(c, c->rx, c->ry, c->rw, c->rh, acf_new, True, False);
p_delete(&si);
p_delete(&si_old);
}
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focus(c, True, acf_new);
/* redraw statusbar on all screens */
drawstatusbar(&acf_new[old_screen - acf_new->screen]);
drawstatusbar(acf_new);
}
/** Move mouse pointer to x_org and y_xorg of specified screen
* \param disp display ref
* \param screen screen number
*/
static void
move_mouse_pointer_to_screen(Display *disp, int screen)
{
if(XineramaIsActive(disp))
{
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ScreenInfo *si = get_screen_info(disp, screen, NULL);
XWarpPointer(disp, None, DefaultRootWindow(disp), 0, 0, 0, 0, si[screen].x_org, si[screen].y_org);
p_delete(&si);
}
else
XWarpPointer(disp, None, RootWindow(disp, screen), 0, 0, 0, 0, 0, 0);
}
void
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uicb_screen_focusnext(awesome_config * awesomeconf,
const char *arg __attribute__ ((unused)))
{
Client *c;
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int next_screen = awesomeconf->screen + 1 >= get_screen_count(awesomeconf->display) ? 0 : awesomeconf->screen + 1;
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for(c = *awesomeconf->clients; c && !isvisible(c, next_screen, awesomeconf[next_screen - awesomeconf->screen].tags, awesomeconf[next_screen - awesomeconf->screen].ntags); c = c->next);
if(c)
{
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focus(c, True, &awesomeconf[next_screen - awesomeconf->screen]);
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restack(&awesomeconf[next_screen - awesomeconf->screen]);
}
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move_mouse_pointer_to_screen(awesomeconf->display, next_screen);
}
void
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uicb_screen_focusprev(awesome_config * awesomeconf,
const char *arg __attribute__ ((unused)))
{
Client *c;
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int prev_screen = awesomeconf->screen - 1 < 0 ? get_screen_count(awesomeconf->display) - 1 : awesomeconf->screen - 1;
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for(c = *awesomeconf->clients; c && !isvisible(c, prev_screen, awesomeconf[prev_screen - awesomeconf->screen].tags, awesomeconf[prev_screen - awesomeconf->screen].ntags); c = c->next);
if(c)
{
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focus(c, True, &awesomeconf[prev_screen - awesomeconf->screen]);
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restack(&awesomeconf[prev_screen - awesomeconf->screen]);
}
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move_mouse_pointer_to_screen(awesomeconf->display, prev_screen);
}
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/** Move client to a virtual screen (if Xinerama is active)
* \param awesomeconf awesome config
* \param arg screen number
* \ingroup ui_callback
*/
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void
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uicb_client_movetoscreen(awesome_config * awesomeconf,
const char *arg)
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{
int new_screen, prev_screen;
Client *sel = get_current_tag(awesomeconf->tags, awesomeconf->ntags)->client_sel;
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if(!sel || !XineramaIsActive(awesomeconf->display))
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return;
if(arg)
new_screen = compute_new_value_from_arg(arg, sel->screen);
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else
new_screen = sel->screen + 1;
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if(new_screen >= get_screen_count(awesomeconf->display))
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new_screen = 0;
else if(new_screen < 0)
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new_screen = get_screen_count(awesomeconf->display) - 1;
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prev_screen = sel->screen;
tag_client_with_current_selected(sel, &awesomeconf[new_screen - awesomeconf->screen]);
move_client_to_screen(sel, &awesomeconf[new_screen - awesomeconf->screen], True);
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move_mouse_pointer_to_screen(awesomeconf->display, new_screen);
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arrange(&awesomeconf[prev_screen - awesomeconf->screen]);
arrange(&awesomeconf[new_screen - awesomeconf->screen]);
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}
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