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