layout.c

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