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