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 "screen.h"
  24
  25 /** Get screens info
  26  * \param disp Display ref
  27  * \param screen Screen number
  28  * \param statusbar statusbar
  29  * \param screen_number int pointer filled with number of screens
  30  * \return ScreenInfo struct array with all screens info
  31  */
  32 ScreenInfo *
  33 get_screen_info(Display *disp, int screen, Statusbar statusbar, int *screen_number)
  34 {
  35     int i, fake_screen_number = 0;
  36     ScreenInfo *si;
  37
  38     if(XineramaIsActive(disp))
  39     {
  40         si = XineramaQueryScreens(disp, screen_number);
  41         fake_screen_number = *screen_number;
  42     }
  43     else
  44     {
  45         /* emulate Xinerama info but only fill the screen we want */
  46         *screen_number =  1;
  47         si = p_new(ScreenInfo, screen + 1);
  48         si[screen].width = DisplayWidth(disp, screen);
  49         si[screen].height = DisplayHeight(disp, screen);
  50         si[screen].x_org = 0;
  51         si[screen].y_org = 0;
  52         fake_screen_number = screen + 1;
  53     }
  54
  55     for(i = 0; i < fake_screen_number; i++)
  56     {
  57         if(statusbar.position == BarTop
  58            || statusbar.position == BarBot)
  59             si[i].height -= statusbar.height;
  60         if(statusbar.position == BarTop)
  61             si[i].y_org += statusbar.height;
  62     }
  63
  64     return si;
  65 }
  66
  67 /** Get display info
  68  * \param disp Display ref
  69  * \param screen Screen number
  70  * \param statusbar the statusbar
  71  * \return ScreenInfo struct pointer with all display info
  72  */
  73 ScreenInfo *
  74 get_display_info(Display *disp, int screen, Statusbar statusbar)
  75 {
  76     ScreenInfo *si;
  77
  78     si = p_new(ScreenInfo, 1);
  79
  80     si->x_org = 0;
  81     si->y_org = statusbar.position == BarTop ? statusbar.height : 0;
  82     si->width = DisplayWidth(disp, screen);
  83     si->height = DisplayHeight(disp, screen) -
  84         ((statusbar.position == BarTop || statusbar.position == BarBot) ? statusbar.height : 0);
  85
  86     return si;
  87 }