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->isuntiled)
  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         if(atoi(arg) < 0) {
  79                 for(c = sel->prev; c && !isvisible(c); c = c->prev);
  80                 if(!c) {
  81                         for(c = clients; c && c->next; c = c->next);
  82                         for(; c && !isvisible(c); c = c->prev);
  83                 }
  84         }
  85         else {
  86                 for(c = sel->next; c && !isvisible(c); c = c->next);
  87                 if(!c)
  88                         for(c = clients; c && !isvisible(c); c = c->next);
  89         }
  90         if(c) {
  91                 focus(c);
  92                 restack();
  93         }
  94 }
  95
  96 void
  97 incmasterw(const char *arg) {
  98         int i;
  99         if(lt->arrange != tile)
 100                 return;
 101         if(!arg)
 102                 masterw = MASTERWIDTH;
 103         else {
 104                 i = atoi(arg);
 105                 if(waw * (masterw + i) / 1000 >= waw - 2 * BORDERPX
 106                 || waw * (masterw + i) / 1000 <= 2 * BORDERPX)
 107                         return;
 108                 masterw += i;
 109         }
 110         lt->arrange();
 111 }
 112
 113 void
 114 incnmaster(const char *arg) {
 115         int i;
 116
 117         if(!arg)
 118                 nmaster = NMASTER;
 119         else {
 120                 i = atoi(arg);
 121                 if((lt->arrange != tile) || (nmaster + i < 1)
 122                 || (wah / (nmaster + i) <= 2 * BORDERPX))
 123                         return;
 124                 nmaster += i;
 125         }
 126         if(sel)
 127                 lt->arrange();
 128         else
 129                 drawstatus();
 130 }
 131
 132 void
 133 initlayouts(void) {
 134         unsigned int i, w;
 135
 136         lt = &layout[0];
 137         nlayouts = sizeof layout / sizeof layout[0];
 138         for(blw = i = 0; i < nlayouts; i++) {
 139                 w = textw(layout[i].symbol);
 140                 if(w > blw)
 141                         blw = w;
 142         }
 143 }
 144
 145 Client *
 146 nexttiled(Client *c) {
 147         for(; c && (c->isuntiled || !isvisible(c)); c = c->next);
 148         return c;
 149 }
 150
 151 void
 152 restack(void) {
 153         Client *c;
 154         XEvent ev;
 155
 156         drawstatus();
 157         if(!sel)
 158                 return;
 159         if(sel->isuntiled || lt->arrange == untile)
 160                 XRaiseWindow(dpy, sel->win);
 161         if(lt->arrange != untile) {
 162                 if(!sel->isuntiled)
 163                         XLowerWindow(dpy, sel->win);
 164                 for(c = nexttiled(clients); c; c = nexttiled(c->next)) {
 165                         if(c == sel)
 166                                 continue;
 167                         XLowerWindow(dpy, c->win);
 168                 }
 169         }
 170         XSync(dpy, False);
 171         while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
 172 }
 173
 174 void
 175 setlayout(const char *arg) {
 176         int i;
 177
 178         if(!arg) {
 179                 for(i = 0; i < nlayouts && lt != &layout[i]; i++);
 180                 if(i == nlayouts - 1)
 181                         lt = &layout[0];
 182                 else
 183                         lt = &layout[++i];
 184         }
 185         else {
 186                 i = atoi(arg);
 187                 if(i < 0 || i >= nlayouts)
 188                         return;
 189                 lt = &layout[i];
 190         }
 191         if(sel)
 192                 lt->arrange();
 193         else
 194                 drawstatus();
 195 }
 196
 197 void
 198 togglemax(const char *arg) {
 199         XEvent ev;
 200
 201         if(!sel || (lt->arrange != untile && !sel->isuntiled) || sel->isfixed)
 202                 return;
 203         if((sel->ismax = !sel->ismax)) {
 204                 sel->rx = sel->x;
 205                 sel->ry = sel->y;
 206                 sel->rw = sel->w;
 207                 sel->rh = sel->h;
 208                 resize(sel, wax, way, waw - 2 * BORDERPX, wah - 2 * BORDERPX, True);
 209         }
 210         else
 211                 resize(sel, sel->rx, sel->ry, sel->rw, sel->rh, True);
 212         drawstatus();
 213         while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
 214 }
 215
 216 void
 217 untile(void) {
 218         Client *c;
 219
 220         for(c = clients; c; c = c->next) {
 221                 if(isvisible(c)) {
 222                         if(c->isbanned)
 223                                 XMoveWindow(dpy, c->win, c->x, c->y);
 224                         c->isbanned = False;
 225                         resize(c, c->x, c->y, c->w, c->h, True);
 226                 }
 227                 else {
 228                         c->isbanned = True;
 229                         XMoveWindow(dpy, c->win, c->x + 2 * sw, c->y);
 230                 }
 231         }
 232         if(!sel || !isvisible(sel)) {
 233                 for(c = stack; c && !isvisible(c); c = c->snext);
 234                 focus(c);
 235         }
 236         restack();
 237 }
 238
 239 void
 240 zoom(const char *arg) {
 241         unsigned int n;
 242         Client *c;
 243
 244         if(!sel || lt->arrange != tile || sel->isuntiled)
 245                 return;
 246         for(n = 0, c = nexttiled(clients); c; c = nexttiled(c->next))
 247                 n++;
 248         if((c = sel) == nexttiled(clients))
 249                 if(!(c = nexttiled(c->next)))
 250                         return;
 251         detach(c);
 252         attach(c);
 253         focus(c);
 254         lt->arrange();
 255 }