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