layout.c

   1 /* © 2006-2007 Anselm R. Garbe <garbeam at gmail dot com>
   2  * © 2006-2007 Sander van Dijk <a dot h dot vandijk at gmail dot com>
   3  * © 2007 Premysl Hruby <dfenze at gmail dot com>
   4  * See LICENSE file for license details. */
   5 #include "dwm.h"
   6 #include <stdlib.h>
   7
   8 unsigned int blw = 0;
   9 Layout *lt = NULL;
  10
  11 /* static */
  12
  13 static unsigned int nlayouts = 0;
  14 static unsigned int masterw = MASTERWIDTH;
  15 static unsigned int nmaster = NMASTER;
  16
  17 static void
  18 ban(Client *c) {
  19         if (c->isbanned)
  20                 return;
  21         XMoveWindow(dpy, c->win, c->x + 2 * sw, c->y);
  22         c->isbanned = True;
  23 }
  24
  25 static void
  26 unban(Client *c) {
  27         if (!c->isbanned)
  28                 return;
  29         XMoveWindow(dpy, c->win, c->x, c->y);
  30         c->isbanned = False;
  31 }
  32
  33 static void
  34 tile(void) {
  35         unsigned int i, n, nx, ny, nw, nh, mw, mh, tw, th;
  36         Client *c;
  37
  38         for(n = 0, c = nexttiled(clients); c; c = nexttiled(c->next))
  39                 n++;
  40         /* window geoms */
  41         mh = (n > nmaster) ? wah / nmaster : wah / (n > 0 ? n : 1);
  42         mw = (n > nmaster) ? (waw * masterw) / 1000 : waw;
  43         th = (n > nmaster) ? wah / (n - nmaster) : 0;
  44         tw = waw - mw;
  45
  46         for(i = 0, c = clients; c; c = c->next)
  47                 if(isvisible(c)) {
  48                         unban(c);
  49                         if(c->isfloating)
  50                                 continue;
  51                         c->ismax = False;
  52                         nx = wax;
  53                         ny = way;
  54                         if(i < nmaster) {
  55                                 ny += i * mh;
  56                                 nw = mw - 2 * c->border;
  57                                 nh = mh;
  58                                 if(i + 1 == (n < nmaster ? n : nmaster)) /* remainder */
  59                                         nh = wah - mh * i;
  60                                 nh -= 2 * c->border;
  61                         }
  62                         else {  /* tile window */
  63                                 nx += mw;
  64                                 nw = tw - 2 * c->border;
  65                                 if(th > 2 * c->border) {
  66                                         ny += (i - nmaster) * th;
  67                                         nh = th;
  68                                         if(i + 1 == n) /* remainder */
  69                                                 nh = wah - th * (i - nmaster);
  70                                         nh -= 2 * c->border;
  71                                 }
  72                                 else /* fallback if th <= 2 * c->border */
  73                                         nh = wah - 2 * c->border;
  74                         }
  75                         resize(c, nx, ny, nw, nh, False);
  76                         i++;
  77                 }
  78                 else
  79                         ban(c);
  80         focus(NULL);
  81         restack();
  82 }
  83
  84 LAYOUTS
  85
  86 /* extern */
  87
  88 void
  89 floating(void) {
  90         Client *c;
  91
  92         for(c = clients; c; c = c->next)
  93                 if(isvisible(c)) {
  94                         if(c->isbanned)
  95                                 XMoveWindow(dpy, c->win, c->x, c->y);
  96                         c->isbanned = False;
  97                         resize(c, c->x, c->y, c->w, c->h, True);
  98                 }
  99                 else
 100                         ban(c);
 101         focus(NULL);
 102         restack();
 103 }
 104
 105 void
 106 focusclient(const char *arg) {
 107         Client *c;
 108
 109         if(!sel || !arg)
 110                 return;
 111         if(atoi(arg) < 0) {
 112                 for(c = sel->prev; c && !isvisible(c); c = c->prev);
 113                 if(!c) {
 114                         for(c = clients; c && c->next; c = c->next);
 115                         for(; c && !isvisible(c); c = c->prev);
 116                 }
 117         }
 118         else {
 119                 for(c = sel->next; c && !isvisible(c); c = c->next);
 120                 if(!c)
 121                         for(c = clients; c && !isvisible(c); c = c->next);
 122         }
 123         if(c) {
 124                 focus(c);
 125                 restack();
 126         }
 127 }
 128
 129 void
 130 incmasterw(const char *arg) {
 131         int i;
 132         if(lt->arrange != tile)
 133                 return;
 134         if(!arg)
 135                 masterw = MASTERWIDTH;
 136         else {
 137                 i = atoi(arg);
 138                 if(waw * (masterw + i) / 1000 >= waw - 2 * BORDERPX
 139                 || waw * (masterw + i) / 1000 <= 2 * BORDERPX)
 140                         return;
 141                 masterw += i;
 142         }
 143         lt->arrange();
 144 }
 145
 146 void
 147 incnmaster(const char *arg) {
 148         int i;
 149
 150         if(!arg)
 151                 nmaster = NMASTER;
 152         else {
 153                 i = atoi(arg);
 154                 if((lt->arrange != tile) || (nmaster + i < 1)
 155                 || (wah / (nmaster + i) <= 2 * BORDERPX))
 156                         return;
 157                 nmaster += i;
 158         }
 159         if(sel)
 160                 lt->arrange();
 161         else
 162                 drawstatus();
 163 }
 164
 165 void
 166 initlayouts(void) {
 167         unsigned int i, w;
 168
 169         lt = &layout[0];
 170         nlayouts = sizeof layout / sizeof layout[0];
 171         for(blw = i = 0; i < nlayouts; i++) {
 172                 w = textw(layout[i].symbol);
 173                 if(w > blw)
 174                         blw = w;
 175         }
 176 }
 177
 178 Client *
 179 nexttiled(Client *c) {
 180         for(; c && (c->isfloating || !isvisible(c)); c = c->next);
 181         return c;
 182 }
 183
 184 void
 185 restack(void) {
 186         Client *c;
 187         XEvent ev;
 188
 189         drawstatus();
 190         if(!sel)
 191                 return;
 192         if(sel->isfloating || lt->arrange == floating)
 193                 XRaiseWindow(dpy, sel->win);
 194         if(lt->arrange != floating) {
 195                 if(!sel->isfloating)
 196                         XLowerWindow(dpy, sel->win);
 197                 for(c = nexttiled(clients); c; c = nexttiled(c->next)) {
 198                         if(c == sel)
 199                                 continue;
 200                         XLowerWindow(dpy, c->win);
 201                 }
 202         }
 203         XSync(dpy, False);
 204         while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
 205 }
 206
 207 void
 208 setlayout(const char *arg) {
 209         int i;
 210
 211         if(!arg) {
 212                 lt++;
 213                 if(lt == layout + nlayouts)
 214                         lt = layout;
 215         }
 216         else {
 217                 i = atoi(arg);
 218                 if(i < 0 || i >= nlayouts)
 219                         return;
 220                 lt = &layout[i];
 221         }
 222         if(sel)
 223                 lt->arrange();
 224         else
 225                 drawstatus();
 226 }
 227
 228 void
 229 togglebar(const char *arg) {
 230         if(bpos == BarOff)
 231                 bpos = (BARPOS == BarOff) ? BarTop : BARPOS;
 232         else
 233                 bpos = BarOff;
 234         updatebarpos();
 235         lt->arrange();
 236 }
 237
 238 void
 239 togglemax(const char *arg) {
 240         XEvent ev;
 241
 242         if(!sel || (lt->arrange != floating && !sel->isfloating) || sel->isfixed)
 243                 return;
 244         if((sel->ismax = !sel->ismax)) {
 245                 sel->rx = sel->x;
 246                 sel->ry = sel->y;
 247                 sel->rw = sel->w;
 248                 sel->rh = sel->h;
 249                 resize(sel, wax, way, waw - 2 * BORDERPX, wah - 2 * BORDERPX, True);
 250         }
 251         else
 252                 resize(sel, sel->rx, sel->ry, sel->rw, sel->rh, True);
 253         drawstatus();
 254         while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
 255 }
 256
 257 void
 258 zoom(const char *arg) {
 259         Client *c;
 260
 261         if(!sel || lt->arrange == floating || sel->isfloating)
 262                 return;
 263         if((c = sel) == nexttiled(clients))
 264                 if(!(c = nexttiled(c->next)))
 265                         return;
 266         detach(c);
 267         attach(c);
 268         focus(c);
 269         lt->arrange();
 270 }