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 "util.h"
  27 #include "xutil.h"
  28 #include "focus.h"
  29 #include "statusbar.h"
  30 #include "ewmh.h"
  31 #include "client.h"
  32 #include "screen.h"
  33 #include "layouts/tile.h"
  34 #include "layouts/max.h"
  35 #include "layouts/fibonacci.h"
  36 #include "layouts/floating.h"
  37
  38 extern AwesomeConf globalconf;
  39
  40 const NameFuncLink LayoutsList[] =
  41 {
  42     {"tile", layout_tile},
  43     {"tileleft", layout_tileleft},
  44     {"max", layout_max},
  45     {"spiral", layout_spiral},
  46     {"dwindle", layout_dwindle},
  47     {"floating", layout_floating},
  48     {NULL, NULL}
  49 };
  50
  51 /** Arrange windows following current selected layout
  52  * \param screen the screen to arrange
  53  */
  54 void
  55 arrange(int screen)
  56 {
  57     Client *c;
  58     Tag **curtags = get_current_tags(screen);
  59
  60     for(c = globalconf.clients; c; c = c->next)
  61     {
  62         if(client_isvisible(c, screen))
  63             client_unban(c);
  64         /* we don't touch other screens windows */
  65         else if(c->screen == screen)
  66             client_ban(c);
  67     }
  68
  69     curtags[0]->layout->arrange(screen);
  70     focus(focus_get_current_client(screen), True, screen);
  71     p_delete(&curtags);
  72     restack(screen);
  73 }
  74
  75 /** Send focus to next client in stack
  76  * \param screen Screen ID
  77  * \param arg Unused
  78  * \ingroup ui_callback
  79  */
  80 void
  81 uicb_client_focusnext(int screen, char *arg __attribute__ ((unused)))
  82 {
  83     Client *c, *sel = globalconf.focus->client;
  84
  85     if(!sel)
  86         return;
  87     for(c = sel->next; c && (c->skip || !client_isvisible(c, screen)); c = c->next);
  88     if(!c)
  89         for(c = globalconf.clients; c && (c->skip || !client_isvisible(c, screen)); c = c->next);
  90     if(c)
  91     {
  92         focus(c, True, screen);
  93         restack(screen);
  94     }
  95 }
  96
  97 /** Send focus to previous client in stack
  98  * \param screen Screen ID
  99  * \param arg Unused
 100  * \ingroup ui_callback
 101  */
 102 void
 103 uicb_client_focusprev(int screen, char *arg __attribute__ ((unused)))
 104 {
 105     Client *c, *sel = globalconf.focus->client;
 106
 107     if(!sel)
 108         return;
 109     for(c = sel->prev; c && (c->skip || !client_isvisible(c, screen)); c = c->prev);
 110     if(!c)
 111     {
 112         for(c = globalconf.clients; c && c->next; c = c->next);
 113         for(; c && (c->skip || !client_isvisible(c, screen)); c = c->prev);
 114     }
 115     if(c)
 116     {
 117         focus(c, True, screen);
 118         restack(screen);
 119     }
 120 }
 121
 122 void
 123 loadawesomeprops(int screen)
 124 {
 125     int i, ntags = 0;
 126     char *prop;
 127     Tag *tag;
 128
 129     for(tag = globalconf.screens[screen].tags; tag; tag = tag->next)
 130         ntags++;
 131
 132     prop = p_new(char, ntags + 1);
 133
 134     if(xgettextprop(globalconf.display,
 135                     RootWindow(globalconf.display, get_phys_screen(screen)),
 136                     AWESOMEPROPS_ATOM(globalconf.display), prop, ntags + 1))
 137         for(i = 0, tag = globalconf.screens[screen].tags; tag && prop[i]; i++, tag = tag->next)
 138             if(prop[i] == '1')
 139                 tag->selected = True;
 140             else
 141                 tag->selected = False;
 142
 143     p_delete(&prop);
 144
 145     ewmh_update_net_current_desktop(get_phys_screen(screen));
 146 }
 147
 148 void
 149 restack(int screen)
 150 {
 151     Client *c, *sel = globalconf.focus->client;
 152     XEvent ev;
 153     XWindowChanges wc;
 154     Tag **curtags;
 155
 156     statusbar_draw_all(screen);
 157
 158     if(!sel)
 159         return;
 160
 161     if(globalconf.screens[screen].allow_lower_floats)
 162         XRaiseWindow(globalconf.display, sel->win);
 163     else
 164     {
 165         curtags = get_current_tags(screen);
 166         if(sel->isfloating ||
 167            curtags[0]->layout->arrange == layout_floating)
 168             XRaiseWindow(globalconf.display, sel->win);
 169         if(!(curtags[0]->layout->arrange == layout_floating))
 170         {
 171             wc.stack_mode = Below;
 172             if(!sel->isfloating)
 173                 XConfigureWindow(globalconf.display, sel->win, CWStackMode, &wc);
 174             for(c = globalconf.clients; c; c = c->next)
 175             {
 176                 if(!IS_TILED(c, screen) || c == sel)
 177                     continue;
 178                 XConfigureWindow(globalconf.display, c->win, CWStackMode, &wc);
 179             }
 180         }
 181         p_delete(&curtags);
 182     }
 183     if(globalconf.screens[screen].focus_move_pointer)
 184         XWarpPointer(globalconf.display, None, sel->win, 0, 0, 0, 0,
 185                      sel->geometry.width / 2, sel->geometry.height / 2);
 186     XSync(globalconf.display, False);
 187     while(XCheckMaskEvent(globalconf.display, EnterWindowMask, &ev));
 188 }
 189
 190 void
 191 saveawesomeprops(int screen)
 192 {
 193     int i, ntags = 0;
 194     char *prop;
 195     Tag *tag;
 196
 197     for(tag = globalconf.screens[screen].tags; tag; tag = tag->next)
 198         ntags++;
 199
 200     prop = p_new(char, ntags + 1);
 201
 202     for(i = 0, tag = globalconf.screens[screen].tags; tag; tag = tag->next, i++)
 203         prop[i] = tag->selected ? '1' : '0';
 204
 205     prop[i] = '\0';
 206     XChangeProperty(globalconf.display,
 207                     RootWindow(globalconf.display, get_phys_screen(screen)),
 208                     AWESOMEPROPS_ATOM(globalconf.display), XA_STRING, 8,
 209                     PropModeReplace, (unsigned char *) prop, i);
 210     p_delete(&prop);
 211 }
 212
 213 /** Set layout for tag
 214  * \param screen Screen ID
 215  * \param arg Layout specifier
 216  * \ingroup ui_callback
 217  */
 218 void
 219 uicb_tag_setlayout(int screen, char *arg)
 220 {
 221     Layout *l = globalconf.screens[screen].layouts;
 222     Tag *tag, **curtags;
 223     int i;
 224
 225     if(arg)
 226     {
 227         curtags = get_current_tags(screen);
 228         for(i = 0; l && l != curtags[0]->layout; i++, l = l->next);
 229         p_delete(&curtags);
 230         if(!l)
 231             i = 0;
 232         for(i = compute_new_value_from_arg(arg, (double) i),
 233             l = globalconf.screens[screen].layouts; l && i > 0; i--)
 234             l = l->next;
 235         if(!l)
 236             l = globalconf.screens[screen].layouts;
 237     }
 238
 239     for(tag = globalconf.screens[screen].tags; tag; tag = tag->next)
 240         if(tag->selected)
 241             tag->layout = l;
 242
 243     if(globalconf.focus->client)
 244         arrange(screen);
 245     else
 246         statusbar_draw_all(screen);
 247
 248     saveawesomeprops(screen);
 249 }
 250
 251 // vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80