layout.c

   1 /*
   2  * layout.c - layout 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 <X11/Xatom.h>
  23 #include <X11/Xutil.h>
  24
  25 #include "tag.h"
  26 #include "xutil.h"
  27 #include "focus.h"
  28 #include "widget.h"
  29 #include "window.h"
  30 #include "client.h"
  31 #include "screen.h"
  32 #include "layouts/tile.h"
  33 #include "layouts/max.h"
  34 #include "layouts/fibonacci.h"
  35 #include "layouts/floating.h"
  36
  37 extern AwesomeConf globalconf;
  38
  39 #include "layoutgen.h"
  40
  41 /** Arrange windows following current selected layout
  42  * \param screen the screen to arrange
  43  */
  44 static void
  45 arrange(int screen)
  46 {
  47     Client *c;
  48     Layout *curlay = layout_get_current(screen);
  49     unsigned int dui;
  50     int di, x, y;
  51     Window rootwin, childwin;
  52
  53     for(c = globalconf.clients; c; c = c->next)
  54     {
  55         if(client_isvisible(c, screen) && !c->newcomer)
  56             client_unban(c);
  57         /* we don't touch other screens windows */
  58         else if(c->screen == screen || c->newcomer)
  59             client_ban(c);
  60     }
  61
  62     curlay->arrange(screen);
  63
  64     for(c = globalconf.clients; c; c = c->next)
  65         if(c->newcomer && client_isvisible(c, screen))
  66         {
  67             c->newcomer = False;
  68             client_unban(c);
  69             if(globalconf.screens[screen].new_get_focus)
  70                 client_focus(c, screen, True);
  71         }
  72
  73     /* if we have a valid client that could be focused but currently no window
  74      * are focused, then set the focus on this window */
  75     if((c = focus_get_current_client(screen)) && !globalconf.focus->client)
  76         client_focus(c, screen, True);
  77
  78     /* check that the mouse is on a window or not */
  79     if(XQueryPointer(globalconf.display, RootWindow(globalconf.display,
  80                                                     get_phys_screen(screen)),
  81                      &rootwin, &childwin, &x, &y, &di, &di, &dui)
  82        && (rootwin == None || childwin == None || childwin == rootwin))
  83         window_root_grabbuttons(get_phys_screen(screen));
  84
  85     /* reset status */
  86     globalconf.screens[screen].need_arrange = False;
  87 }
  88
  89 int
  90 layout_refresh(void)
  91 {
  92     int screen;
  93     int arranged = 0;
  94
  95     for(screen = 0; screen < globalconf.nscreen; screen++)
  96         if(globalconf.screens[screen].need_arrange)
  97         {
  98             arrange(screen);
  99             arranged++;
 100         }
 101
 102     return arranged;
 103 }
 104
 105 Layout *
 106 layout_get_current(int screen)
 107 {
 108     Tag **curtags = tags_get_current(screen);
 109     Layout *l = curtags[0]->layout;
 110     p_delete(&curtags);
 111     return l;
 112 }
 113
 114 /** Set layout for tag
 115  * \param screen Screen ID
 116  * \param arg Layout specifier
 117  * \ingroup ui_callback
 118  */
 119 void
 120 uicb_tag_setlayout(int screen, char *arg)
 121 {
 122     Layout *l = globalconf.screens[screen].layouts;
 123     Tag *tag, **curtags;
 124     int i;
 125
 126     if(arg)
 127     {
 128         curtags = tags_get_current(screen);
 129         for(i = 0; l && l != curtags[0]->layout; i++, l = l->next);
 130         p_delete(&curtags);
 131
 132         if(!l)
 133             i = 0;
 134
 135         i = compute_new_value_from_arg(arg, (double) i);
 136
 137         if(i >= 0)
 138             for(l = globalconf.screens[screen].layouts; l && i > 0; i--)
 139                  l = l->next;
 140         else
 141             for(l = globalconf.screens[screen].layouts; l && i < 0; i++)
 142                  l = layout_list_prev_cycle(&globalconf.screens[screen].layouts, l);
 143
 144         if(!l)
 145             l = globalconf.screens[screen].layouts;
 146     }
 147
 148     for(tag = globalconf.screens[screen].tags; tag; tag = tag->next)
 149         if(tag->selected)
 150             tag->layout = l;
 151
 152     if(globalconf.focus->client)
 153         arrange(screen);
 154
 155     widget_invalidate_cache(screen, WIDGET_CACHE_LAYOUTS);
 156 }
 157
 158 // vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80