layout.c

   1 /*
   2  * layout.c - layout management
   3  *
   4  * Copyright © 2007-2008 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 "focus.h"
  27 #include "widget.h"
  28 #include "window.h"
  29 #include "client.h"
  30 #include "screen.h"
  31 #include "layouts/tile.h"
  32 #include "layouts/max.h"
  33 #include "layouts/fibonacci.h"
  34 #include "layouts/floating.h"
  35
  36 extern AwesomeConf globalconf;
  37
  38 #include "layoutgen.h"
  39
  40 /** Arrange windows following current selected layout
  41  * \param screen the screen to arrange
  42  */
  43 static void
  44 arrange(int screen)
  45 {
  46     Client *c;
  47     Layout *curlay = layout_get_current(screen);
  48     unsigned int dui;
  49     int di, x, y, phys_screen = screen_virttophys(screen);
  50     Window rootwin, childwin;
  51
  52     for(c = globalconf.clients; c; c = c->next)
  53     {
  54         if(client_isvisible(c, screen) && !c->newcomer)
  55             client_unban(c);
  56         /* we don't touch other screens windows */
  57         else if(c->screen == screen || c->newcomer)
  58             client_ban(c);
  59     }
  60
  61     curlay->arrange(screen);
  62
  63     for(c = globalconf.clients; c; c = c->next)
  64         if(c->newcomer && client_isvisible(c, screen))
  65         {
  66             c->newcomer = False;
  67             client_unban(c);
  68             if(globalconf.screens[screen].new_get_focus && !c->skip)
  69                 client_focus(c, screen, True);
  70         }
  71
  72     /* if we have a valid client that could be focused but currently no window
  73      * are focused, then set the focus on this window */
  74     if((c = focus_get_current_client(screen)) && !globalconf.focus->client)
  75         client_focus(c, screen, True);
  76
  77     /* check that the mouse is on a window or not */
  78     if(XQueryPointer(globalconf.display,
  79                      RootWindow(globalconf.display, phys_screen),
  80                      &rootwin, &childwin, &x, &y, &di, &di, &dui))
  81     {
  82        if(rootwin == None || childwin == None || childwin == rootwin)
  83            window_root_grabbuttons(phys_screen);
  84
  85        globalconf.pointer_x = x;
  86        globalconf.pointer_y = y;
  87     }
  88
  89     /* reset status */
  90     globalconf.screens[screen].need_arrange = False;
  91 }
  92
  93 /** Refresh the screen disposition
  94  * \return true if the screen was arranged, false otherwise
  95  */
  96 int
  97 layout_refresh(void)
  98 {
  99     int screen;
 100     int arranged = 0;
 101
 102     for(screen = 0; screen < globalconf.screens_info->nscreen; screen++)
 103         if(globalconf.screens[screen].need_arrange)
 104         {
 105             arrange(screen);
 106             arranged++;
 107         }
 108
 109     return arranged;
 110 }
 111
 112 /** Get current layout used on screen
 113  * \param screen screen id
 114  * \return layout used on that screen
 115  */
 116 Layout *
 117 layout_get_current(int screen)
 118 {
 119     Tag **curtags = tags_get_current(screen);
 120     Layout *l = curtags[0]->layout;
 121     p_delete(&curtags);
 122     return l;
 123 }
 124
 125 /** Set layout for current tag.
 126  * Argument must be a relative or absolute integer of available layouts.
 127  * \param screen Screen ID
 128  * \param arg Layout specifier
 129  * \ingroup ui_callback
 130  */
 131 void
 132 uicb_tag_setlayout(int screen, char *arg)
 133 {
 134     Layout *l = globalconf.screens[screen].layouts;
 135     Tag *tag, **curtags;
 136     int i;
 137
 138     if(arg)
 139     {
 140         curtags = tags_get_current(screen);
 141         for(i = 0; l && l != curtags[0]->layout; i++, l = l->next);
 142         p_delete(&curtags);
 143
 144         if(!l)
 145             i = 0;
 146
 147         i = compute_new_value_from_arg(arg, (double) i);
 148
 149         if(i >= 0)
 150             for(l = globalconf.screens[screen].layouts; l && i > 0; i--)
 151                  l = l->next;
 152         else
 153             for(l = globalconf.screens[screen].layouts; l && i < 0; i++)
 154                  l = layout_list_prev_cycle(&globalconf.screens[screen].layouts, l);
 155
 156         if(!l)
 157             l = globalconf.screens[screen].layouts;
 158     }
 159
 160     for(tag = globalconf.screens[screen].tags; tag; tag = tag->next)
 161         if(tag->selected)
 162             tag->layout = l;
 163
 164     if(globalconf.focus->client)
 165         arrange(screen);
 166
 167     widget_invalidate_cache(screen, WIDGET_CACHE_LAYOUTS);
 168 }
 169
 170 // vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80