screen.c

   1 /*
   2  * screen.c - screen management
   3  *
   4  * Copyright © 2007 Julien Danjou <julien@danjou.info>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License along
  17  * with this program; if not, write to the Free Software Foundation, Inc.,
  18  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  19  *
  20  */
  21
  22 #include "util.h"
  23 #include "client.h"
  24 #include "screen.h"
  25 #include "tag.h"
  26 #include "layout.h"
  27
  28 extern Client *sel, *clients;
  29
  30 /** Get screens info
  31  * \param disp Display ref
  32  * \param screen Screen number
  33  * \param statusbar statusbar
  34  * \param screen_number int pointer filled with number of screens
  35  * \return ScreenInfo struct array with all screens info
  36  */
  37 ScreenInfo *
  38 get_screen_info(Display *disp, int screen, Statusbar statusbar, int *screen_number)
  39 {
  40     int i, fake_screen_number = 0;
  41     ScreenInfo *si;
  42
  43     if(XineramaIsActive(disp))
  44     {
  45         si = XineramaQueryScreens(disp, screen_number);
  46         fake_screen_number = *screen_number;
  47     }
  48     else
  49     {
  50         /* emulate Xinerama info but only fill the screen we want */
  51         *screen_number =  1;
  52         si = p_new(ScreenInfo, screen + 1);
  53         si[screen].width = DisplayWidth(disp, screen);
  54         si[screen].height = DisplayHeight(disp, screen);
  55         si[screen].x_org = 0;
  56         si[screen].y_org = 0;
  57         fake_screen_number = screen + 1;
  58     }
  59
  60     for(i = 0; i < fake_screen_number; i++)
  61     {
  62         if(statusbar.position == BarTop
  63            || statusbar.position == BarBot)
  64             si[i].height -= statusbar.height;
  65         if(statusbar.position == BarTop)
  66             si[i].y_org += statusbar.height;
  67     }
  68
  69     return si;
  70 }
  71
  72 /** Get display info
  73  * \param disp Display ref
  74  * \param screen Screen number
  75  * \param statusbar the statusbar
  76  * \return ScreenInfo struct pointer with all display info
  77  */
  78 ScreenInfo *
  79 get_display_info(Display *disp, int screen, Statusbar statusbar)
  80 {
  81     ScreenInfo *si;
  82
  83     si = p_new(ScreenInfo, 1);
  84
  85     si->x_org = 0;
  86     si->y_org = statusbar.position == BarTop ? statusbar.height : 0;
  87     si->width = DisplayWidth(disp, screen);
  88     si->height = DisplayHeight(disp, screen) -
  89         ((statusbar.position == BarTop || statusbar.position == BarBot) ? statusbar.height : 0);
  90
  91     return si;
  92 }
  93
  94 void
  95 uicb_focusnextscreen(Display *disp,
  96                      DC *drawcontext,
  97                      awesome_config * awesomeconf,
  98                      const char *arg __attribute__ ((unused)))
  99 {
 100     Client *c;
 101     int next_screen = awesomeconf->screen + 1 >= ScreenCount(disp) ? 0 : awesomeconf->screen + 1;
 102
 103     for(c = clients; c && !isvisible(c, next_screen, awesomeconf[next_screen - awesomeconf->screen].tags, awesomeconf[next_screen - awesomeconf->screen].ntags); c = c->next);
 104     if(c)
 105     {
 106         focus(c->display, &drawcontext[next_screen - awesomeconf->screen], c, True, &awesomeconf[next_screen - awesomeconf->screen]);
 107         restack(c->display, &drawcontext[next_screen - awesomeconf->screen], &awesomeconf[next_screen - awesomeconf->screen]);
 108     }
 109 }
 110
 111 void
 112 uicb_focusprevscreen(Display *disp,
 113                      DC *drawcontext,
 114                      awesome_config * awesomeconf,
 115                      const char *arg __attribute__ ((unused)))
 116 {
 117     Client *c;
 118     int prev_screen = awesomeconf->screen - 1 < 0 ? ScreenCount(disp) - 1 : awesomeconf->screen - 1;
 119
 120     for(c = clients; c && !isvisible(c, prev_screen, awesomeconf[prev_screen - awesomeconf->screen].tags, awesomeconf[prev_screen - awesomeconf->screen].ntags); c = c->next);
 121     if(c)
 122     {
 123         focus(c->display, &drawcontext[prev_screen - awesomeconf->screen], c, True, &awesomeconf[prev_screen - awesomeconf->screen]);
 124         restack(c->display, &drawcontext[prev_screen - awesomeconf->screen], &awesomeconf[prev_screen - awesomeconf->screen]);
 125     }
 126 }