layout.c

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