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
  76 Layout *
  77 get_current_layout(int screen)
  78 {
  79     Tag **curtags = get_current_tags(screen);
  80     Layout *l = curtags[0]->layout;
  81     p_delete(&curtags);
  82     return l;
  83 }
  84
  85 /** Send focus to next client in stack
  86  * \param screen Screen ID
  87  * \param arg Unused
  88  * \ingroup ui_callback
  89  */
  90 void
  91 uicb_client_focusnext(int screen, char *arg __attribute__ ((unused)))
  92 {
  93     Client *c, *sel = globalconf.focus->client;
  94
  95     if(!sel)
  96         return;
  97     for(c = sel->next; c && (c->skip || !client_isvisible(c, screen)); c = c->next);
  98     if(!c)
  99         for(c = globalconf.clients; c && (c->skip || !client_isvisible(c, screen)); c = c->next);
 100     if(c)
 101     {
 102         focus(c, True, screen);
 103         restack(screen);
 104     }
 105 }
 106
 107 /** Send focus to previous client in stack
 108  * \param screen Screen ID
 109  * \param arg Unused
 110  * \ingroup ui_callback
 111  */
 112 void
 113 uicb_client_focusprev(int screen, char *arg __attribute__ ((unused)))
 114 {
 115     Client *c, *sel = globalconf.focus->client;
 116
 117     if(!sel)
 118         return;
 119     for(c = sel->prev; c && (c->skip || !client_isvisible(c, screen)); c = c->prev);
 120     if(!c)
 121     {
 122         for(c = globalconf.clients; c && c->next; c = c->next);
 123         for(; c && (c->skip || !client_isvisible(c, screen)); c = c->prev);
 124     }
 125     if(c)
 126     {
 127         focus(c, True, screen);
 128         restack(screen);
 129     }
 130 }
 131
 132 void
 133 loadawesomeprops(int screen)
 134 {
 135     int i, ntags = 0;
 136     char *prop;
 137     Tag *tag;
 138
 139     for(tag = globalconf.screens[screen].tags; tag; tag = tag->next)
 140         ntags++;
 141
 142     prop = p_new(char, ntags + 1);
 143
 144     if(xgettextprop(RootWindow(globalconf.display, get_phys_screen(screen)),
 145                     XInternAtom(globalconf.display, "_AWESOME_PROPERTIES", False),
 146                     prop, ntags + 1))
 147         for(i = 0, tag = globalconf.screens[screen].tags; tag && prop[i]; i++, tag = tag->next)
 148             if(prop[i] == '1')
 149                 tag->selected = True;
 150             else
 151                 tag->selected = False;
 152
 153     p_delete(&prop);
 154
 155     ewmh_update_net_current_desktop(get_phys_screen(screen));
 156 }
 157
 158 void
 159 restack(int screen)
 160 {
 161     Client *c, *sel = globalconf.focus->client;
 162     XEvent ev;
 163     XWindowChanges wc;
 164     Tag **curtags;
 165
 166     statusbar_draw_all(screen);
 167
 168     if(!sel)
 169         return;
 170
 171     if(globalconf.screens[screen].allow_lower_floats)
 172         XRaiseWindow(globalconf.display, sel->win);
 173     else
 174     {
 175         curtags = get_current_tags(screen);
 176         if(sel->isfloating ||
 177            curtags[0]->layout->arrange == layout_floating)
 178             XRaiseWindow(globalconf.display, sel->win);
 179         if(!(curtags[0]->layout->arrange == layout_floating))
 180         {
 181             wc.stack_mode = Below;
 182             if(!sel->isfloating)
 183                 XConfigureWindow(globalconf.display, sel->win, CWStackMode, &wc);
 184             for(c = globalconf.clients; c; c = c->next)
 185             {
 186                 if(!IS_TILED(c, screen) || c == sel)
 187                     continue;
 188                 XConfigureWindow(globalconf.display, c->win, CWStackMode, &wc);
 189             }
 190         }
 191         p_delete(&curtags);
 192     }
 193     if(globalconf.screens[screen].focus_move_pointer)
 194         XWarpPointer(globalconf.display, None, sel->win, 0, 0, 0, 0,
 195                      sel->geometry.width / 2, sel->geometry.height / 2);
 196     XSync(globalconf.display, False);
 197     while(XCheckMaskEvent(globalconf.display, EnterWindowMask, &ev));
 198 }
 199
 200 void
 201 saveawesomeprops(int screen)
 202 {
 203     int i, ntags = 0;
 204     char *prop;
 205     Tag *tag;
 206
 207     for(tag = globalconf.screens[screen].tags; tag; tag = tag->next)
 208         ntags++;
 209
 210     prop = p_new(char, ntags + 1);
 211
 212     for(i = 0, tag = globalconf.screens[screen].tags; tag; tag = tag->next, i++)
 213         prop[i] = tag->selected ? '1' : '0';
 214
 215     prop[i] = '\0';
 216     XChangeProperty(globalconf.display,
 217                     RootWindow(globalconf.display, get_phys_screen(screen)),
 218                     XInternAtom(globalconf.display, "_AWESOME_PROPERTIES", False),
 219                     XA_STRING, 8, PropModeReplace, (unsigned char *) prop, i);
 220     p_delete(&prop);
 221 }
 222
 223 /** Set layout for tag
 224  * \param screen Screen ID
 225  * \param arg Layout specifier
 226  * \ingroup ui_callback
 227  */
 228 void
 229 uicb_tag_setlayout(int screen, char *arg)
 230 {
 231     Layout *l = globalconf.screens[screen].layouts;
 232     Tag *tag, **curtags;
 233     int i;
 234
 235     if(arg)
 236     {
 237         curtags = get_current_tags(screen);
 238         for(i = 0; l && l != curtags[0]->layout; i++, l = l->next);
 239         p_delete(&curtags);
 240         if(!l)
 241             i = 0;
 242         for(i = compute_new_value_from_arg(arg, (double) i),
 243             l = globalconf.screens[screen].layouts; l && i > 0; i--)
 244             l = l->next;
 245         if(!l)
 246             l = globalconf.screens[screen].layouts;
 247     }
 248
 249     for(tag = globalconf.screens[screen].tags; tag; tag = tag->next)
 250         if(tag->selected)
 251             tag->layout = l;
 252
 253     if(globalconf.focus->client)
 254         arrange(screen);
 255     else
 256         statusbar_draw_all(screen);
 257
 258     saveawesomeprops(screen);
 259 }
 260
 261 // vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80