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 focusnext(const char *arg) {
  74         Client *c;
  75
  76         if(!sel)
  77                 return;
  78         for(c = sel->next; c && !isvisible(c); c = c->next);
  79         if(!c)
  80                 for(c = clients; c && !isvisible(c); c = c->next);
  81         if(c) {
  82                 focus(c);
  83                 restack();
  84         }
  85 }
  86
  87 void
  88 focusprev(const char *arg) {
  89         Client *c;
  90
  91         if(!sel)
  92                 return;
  93         for(c = sel->prev; c && !isvisible(c); c = c->prev);
  94         if(!c) {
  95                 for(c = clients; c && c->next; c = c->next);
  96                 for(; c && !isvisible(c); c = c->prev);
  97         }
  98         if(c) {
  99                 focus(c);
 100                 restack();
 101         }
 102 }
 103
 104 void
 105 incmasterw(const char *arg) {
 106         int i;
 107         if(lt->arrange != tile)
 108                 return;
 109         if(!arg)
 110                 masterw = MASTERWIDTH;
 111         else {
 112                 i = atoi(arg);
 113                 if(waw * (masterw + i) / 1000 >= waw - 2 * BORDERPX
 114                 || waw * (masterw + i) / 1000 <= 2 * BORDERPX)
 115                         return;
 116                 masterw += i;
 117         }
 118         lt->arrange();
 119 }
 120
 121 void
 122 incnmaster(const char *arg) {
 123         int i = arg ? atoi(arg) : 0;
 124         if((lt->arrange != tile) || (nmaster + i < 1)
 125         || (wah / (nmaster + i) <= 2 * BORDERPX))
 126                 return;
 127         nmaster += i;
 128         if(sel)
 129                 lt->arrange();
 130         else
 131                 drawstatus();
 132 }
 133
 134 void
 135 initlayouts(void) {
 136         unsigned int i, w;
 137
 138         lt = &layout[0];
 139         nlayouts = sizeof layout / sizeof layout[0];
 140         for(blw = i = 0; i < nlayouts; i++) {
 141                 w = textw(layout[i].symbol);
 142                 if(w > blw)
 143                         blw = w;
 144         }
 145 }
 146
 147 Client *
 148 nexttiled(Client *c) {
 149         for(; c && (c->isversatile || !isvisible(c)); c = c->next);
 150         return c;
 151 }
 152
 153 void
 154 restack(void) {
 155         Client *c;
 156         XEvent ev;
 157
 158         drawstatus();
 159         if(!sel)
 160                 return;
 161         if(sel->isversatile || lt->arrange == versatile)
 162                 XRaiseWindow(dpy, sel->win);
 163         if(lt->arrange != versatile) {
 164                 if(!sel->isversatile)
 165                         XLowerWindow(dpy, sel->win);
 166                 for(c = nexttiled(clients); c; c = nexttiled(c->next)) {
 167                         if(c == sel)
 168                                 continue;
 169                         XLowerWindow(dpy, c->win);
 170                 }
 171         }
 172         XSync(dpy, False);
 173         while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
 174 }
 175
 176 void
 177 setlayout(const char *arg) {
 178         unsigned int i;
 179
 180         if(!arg) {
 181                 for(i = 0; i < nlayouts && lt != &layout[i]; i++);
 182                 if(i == nlayouts - 1)
 183                         lt = &layout[0];
 184                 else
 185                         lt = &layout[++i];
 186         }
 187         else {
 188                 i = atoi(arg);
 189                 if(i < 0 || i >= nlayouts)
 190                         return;
 191                 lt = &layout[i];
 192         }
 193         if(sel)
 194                 lt->arrange();
 195         else
 196                 drawstatus();
 197 }
 198
 199 void
 200 togglemax(const char *arg) {
 201         XEvent ev;
 202
 203         if(!sel || (lt->arrange != versatile && !sel->isversatile) || sel->isfixed)
 204                 return;
 205         if((sel->ismax = !sel->ismax)) {
 206                 sel->rx = sel->x;
 207                 sel->ry = sel->y;
 208                 sel->rw = sel->w;
 209                 sel->rh = sel->h;
 210                 resize(sel, wax, way, waw - 2 * BORDERPX, wah - 2 * BORDERPX, True);
 211         }
 212         else
 213                 resize(sel, sel->rx, sel->ry, sel->rw, sel->rh, True);
 214         drawstatus();
 215         while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
 216 }
 217
 218 void
 219 versatile(void) {
 220         Client *c;
 221
 222         for(c = clients; c; c = c->next) {
 223                 if(isvisible(c)) {
 224                         if(c->isbanned)
 225                                 XMoveWindow(dpy, c->win, c->x, c->y);
 226                         c->isbanned = False;
 227                         resize(c, c->x, c->y, c->w, c->h, True);
 228                 }
 229                 else {
 230                         c->isbanned = True;
 231                         XMoveWindow(dpy, c->win, c->x + 2 * sw, c->y);
 232                 }
 233         }
 234         if(!sel || !isvisible(sel)) {
 235                 for(c = stack; c && !isvisible(c); c = c->snext);
 236                 focus(c);
 237         }
 238         restack();
 239 }
 240
 241 void
 242 zoom(const char *arg) {
 243         unsigned int n;
 244         Client *c;
 245
 246         if(!sel || lt->arrange != tile || sel->isversatile)
 247                 return;
 248         for(n = 0, c = nexttiled(clients); c; c = nexttiled(c->next))
 249                 n++;
 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 }