view.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 <stdio.h>
   6
   7 /* static */
   8
   9 static Client *
  10 nexttiled(Client *c) {
  11         for(c = getnext(c); c && c->isfloat; c = getnext(c->next));
  12         return c;
  13 }
  14
  15 static void
  16 togglemax(Client *c) {
  17         XEvent ev;
  18
  19         if(c->isfixed)
  20                 return;
  21
  22         if((c->ismax = !c->ismax)) {
  23                 c->rx = c->x; c->x = wax;
  24                 c->ry = c->y; c->y = way;
  25                 c->rw = c->w; c->w = waw - 2 * BORDERPX;
  26                 c->rh = c->h; c->h = wah - 2 * BORDERPX;
  27         }
  28         else {
  29                 c->x = c->rx;
  30                 c->y = c->ry;
  31                 c->w = c->rw;
  32                 c->h = c->rh;
  33         }
  34         resize(c, True);
  35         while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
  36 }
  37
  38 /* extern */
  39
  40 void (*arrange)(void) = DEFMODE;
  41
  42 void
  43 detach(Client *c) {
  44         if(c->prev)
  45                 c->prev->next = c->next;
  46         if(c->next)
  47                 c->next->prev = c->prev;
  48         if(c == clients)
  49                 clients = c->next;
  50         c->next = c->prev = NULL;
  51 }
  52
  53 void
  54 dofloat(void) {
  55         Client *c;
  56
  57         for(c = clients; c; c = c->next) {
  58                 if(isvisible(c))
  59                         resize(c, True);
  60                 else
  61                         XMoveWindow(dpy, c->win, c->x + 2 * sw, c->y);
  62         }
  63         if(!sel || !isvisible(sel)) {
  64                 for(c = stack; c && !isvisible(c); c = c->snext);
  65                 focus(c);
  66         }
  67         restack();
  68 }
  69
  70 void
  71 dotile(void) {
  72         unsigned int i, n, mw, mh, tw, th;
  73         Client *c;
  74
  75         for(n = 0, c = nexttiled(clients); c; c = nexttiled(c->next))
  76                 n++;
  77         /* window geoms */
  78         mh = (n > nmaster) ? wah / nmaster : wah / (n > 0 ? n : 1);
  79         mw = (n > nmaster) ? (waw * master) / 1000 : waw;
  80         th = (n > nmaster) ? wah / (n - nmaster) : 0;
  81         tw = waw - mw;
  82
  83         for(i = 0, c = clients; c; c = c->next)
  84                 if(isvisible(c)) {
  85                         if(c->isfloat) {
  86                                 resize(c, True);
  87                                 continue;
  88                         }
  89                         c->ismax = False;
  90                         c->x = wax;
  91                         c->y = way;
  92                         if(i < nmaster) {
  93                                 c->y += i * mh;
  94                                 c->w = mw - 2 * BORDERPX;
  95                                 c->h = mh - 2 * BORDERPX;
  96                         }
  97                         else {  /* tile window */
  98                                 c->x += mw;
  99                                 c->w = tw - 2 * BORDERPX;
 100                                 if(th > 2 * BORDERPX) {
 101                                         c->y += (i - nmaster) * th;
 102                                         c->h = th - 2 * BORDERPX;
 103                                 }
 104                                 else /* fallback if th <= 2 * BORDERPX */
 105                                         c->h = wah - 2 * BORDERPX;
 106                         }
 107                         resize(c, False);
 108                         i++;
 109                 }
 110                 else
 111                         XMoveWindow(dpy, c->win, c->x + 2 * sw, c->y);
 112         if(!sel || !isvisible(sel)) {
 113                 for(c = stack; c && !isvisible(c); c = c->snext);
 114                 focus(c);
 115         }
 116         restack();
 117 }
 118
 119 void
 120 focusnext(Arg *arg) {
 121         Client *c;
 122
 123         if(!sel)
 124                 return;
 125         if(!(c = getnext(sel->next)))
 126                 c = getnext(clients);
 127         if(c) {
 128                 focus(c);
 129                 restack();
 130         }
 131 }
 132
 133 void
 134 focusprev(Arg *arg) {
 135         Client *c;
 136
 137         if(!sel)
 138                 return;
 139         if(!(c = getprev(sel->prev))) {
 140                 for(c = clients; c && c->next; c = c->next);
 141                 c = getprev(c);
 142         }
 143         if(c) {
 144                 focus(c);
 145                 restack();
 146         }
 147 }
 148
 149 void
 150 incnmaster(Arg *arg) {
 151         if((arrange == dofloat) || (nmaster + arg->i < 1)
 152         || (wah / (nmaster + arg->i) <= 2 * BORDERPX))
 153                 return;
 154         nmaster += arg->i;
 155         if(sel)
 156                 arrange();
 157         else
 158                 drawstatus();
 159 }
 160
 161 Bool
 162 isvisible(Client *c) {
 163         unsigned int i;
 164
 165         for(i = 0; i < ntags; i++)
 166                 if(c->tags[i] && seltag[i])
 167                         return True;
 168         return False;
 169 }
 170
 171 void
 172 resizemaster(Arg *arg) {
 173         if(arg->i == 0)
 174                 master = MASTER;
 175         else {
 176                 if(waw * (master + arg->i) / 1000 >= waw - 2 * BORDERPX
 177                 || waw * (master + arg->i) / 1000 <= 2 * BORDERPX)
 178                         return;
 179                 master += arg->i;
 180         }
 181         arrange();
 182 }
 183
 184 void
 185 restack(void) {
 186         Client *c;
 187         XEvent ev;
 188
 189         drawstatus();
 190         if(!sel)
 191                 return;
 192         if(sel->isfloat || arrange == dofloat)
 193                 XRaiseWindow(dpy, sel->win);
 194         if(arrange != dofloat) {
 195                 if(!sel->isfloat)
 196                         XLowerWindow(dpy, sel->win);
 197                 for(c = nexttiled(clients); c; c = nexttiled(c->next)) {
 198                         if(c == sel)
 199                                 continue;
 200                         XLowerWindow(dpy, c->win);
 201                 }
 202         }
 203         XSync(dpy, False);
 204         while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
 205 }
 206
 207 void
 208 togglefloat(Arg *arg) {
 209         if(!sel || arrange == dofloat)
 210                 return;
 211         sel->isfloat = !sel->isfloat;
 212         arrange();
 213 }
 214
 215 void
 216 togglemode(Arg *arg) {
 217         arrange = (arrange == dofloat) ? dotile : dofloat;
 218         if(sel)
 219                 arrange();
 220         else
 221                 drawstatus();
 222 }
 223
 224 void
 225 toggleview(Arg *arg) {
 226         unsigned int i;
 227
 228         seltag[arg->i] = !seltag[arg->i];
 229         for(i = 0; i < ntags && !seltag[i]; i++);
 230         if(i == ntags)
 231                 seltag[arg->i] = True; /* cannot toggle last view */
 232         arrange();
 233 }
 234
 235 void
 236 view(Arg *arg) {
 237         unsigned int i;
 238
 239         for(i = 0; i < ntags; i++)
 240                 seltag[i] = (arg->i == -1) ? True : False;
 241         if(arg->i >= 0 && arg->i < ntags)
 242                 seltag[arg->i] = True;
 243         arrange();
 244 }
 245
 246 void
 247 zoom(Arg *arg) {
 248         unsigned int n;
 249         Client *c;
 250
 251         if(!sel)
 252                 return;
 253         if(sel->isfloat || (arrange == dofloat)) {
 254                 togglemax(sel);
 255                 return;
 256         }
 257         for(n = 0, c = nexttiled(clients); c; c = nexttiled(c->next))
 258                 n++;
 259
 260         if((c = sel) == nexttiled(clients))
 261                 if(!(c = nexttiled(c->next)))
 262                         return;
 263         detach(c);
 264         if(clients)
 265                 clients->prev = c;
 266         c->next = clients;
 267         clients = c;
 268         focus(c);
 269         arrange();
 270 }