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