view.c

   1 /* (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>
   2  * See LICENSE file for license details.
   3  */
   4 #include "dwm.h"
   5
   6 /* static */
   7
   8 static Client *
   9 minclient(void) {
  10         Client *c, *min;
  11
  12         if((clients && clients->isfloat) || arrange == dofloat)
  13                 return clients; /* don't touch floating order */
  14         for(min = c = clients; c; c = c->next)
  15                 if(c->weight < min->weight)
  16                         min = c;
  17         return min;
  18 }
  19
  20 static Client *
  21 nexttiled(Client *c) {
  22         for(c = getnext(c); c && c->isfloat; c = getnext(c->next));
  23         return c;
  24 }
  25
  26 static void
  27 reorder(void) {
  28         Client *c, *newclients, *tail;
  29
  30         newclients = tail = NULL;
  31         while((c = minclient())) {
  32                 detach(c);
  33                 if(tail) {
  34                         c->prev = tail;
  35                         tail->next = c;
  36                         tail = c;
  37                 }
  38                 else
  39                         tail = newclients = c;
  40         }
  41         clients = newclients;
  42 }
  43
  44 static void
  45 togglemax(Client *c) {
  46         XEvent ev;
  47
  48         if(c->isfixed)
  49                 return;
  50
  51         if((c->ismax = !c->ismax)) {
  52                 c->rx = c->x; c->x = wax;
  53                 c->ry = c->y; c->y = way;
  54                 c->rw = c->w; c->w = waw - 2 * BORDERPX;
  55                 c->rh = c->h; c->h = wah - 2 * BORDERPX;
  56         }
  57         else {
  58                 c->x = c->rx;
  59                 c->y = c->ry;
  60                 c->w = c->rw;
  61                 c->h = c->rh;
  62         }
  63         resize(c, True, TopLeft);
  64         while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
  65 }
  66
  67 /* extern */
  68
  69 void (*arrange)(void) = DEFMODE;
  70
  71 void
  72 detach(Client *c) {
  73         if(c->prev)
  74                 c->prev->next = c->next;
  75         if(c->next)
  76                 c->next->prev = c->prev;
  77         if(c == clients)
  78                 clients = c->next;
  79         c->next = c->prev = NULL;
  80 }
  81
  82 void
  83 dofloat(void) {
  84         Client *c;
  85
  86         for(c = clients; c; c = c->next) {
  87                 if(isvisible(c)) {
  88                         resize(c, True, TopLeft);
  89                 }
  90                 else
  91                         ban(c);
  92         }
  93         if(!sel || !isvisible(sel)) {
  94                 for(c = stack; c && !isvisible(c); c = c->snext);
  95                 focus(c);
  96         }
  97         restack();
  98 }
  99
 100 void
 101 dotile(void) {
 102         unsigned int i, n, mpx, stackw, th;
 103         Client *c;
 104
 105         for(n = 0, c = nexttiled(clients); c; c = nexttiled(c->next))
 106                 n++;
 107         mpx = (waw * master) / 1000;
 108         stackw = waw - mpx;
 109
 110         for(i = 0, c = clients; c; c = c->next)
 111                 if(isvisible(c)) {
 112                         if(c->isfloat) {
 113                                 resize(c, True, TopLeft);
 114                                 continue;
 115                         }
 116                         c->ismax = False;
 117                         c->x = wax;
 118                         c->y = way;
 119                         if(n == 1) { /* only 1 window */
 120                                 c->w = waw - 2 * BORDERPX;
 121                                 c->h = wah - 2 * BORDERPX;
 122                         }
 123                         else if(i == 0) { /* master window */
 124                                 c->w = waw - stackw - 2 * BORDERPX;
 125                                 c->h = wah - 2 * BORDERPX;
 126                                 th = wah / (n - 1);
 127                         }
 128                         else {  /* tile window */
 129                                 c->x += mpx;
 130                                 c->w = stackw - 2 * BORDERPX;
 131                                 if(th > bh) {
 132                                         c->y = way + (i - 1) * th;
 133                                         c->h = th - 2 * BORDERPX;
 134                                 }
 135                                 else /* fallback if th < bh */
 136                                         c->h = wah - 2 * BORDERPX;
 137                         }
 138                         resize(c, False, TopLeft);
 139                         i++;
 140                 }
 141                 else
 142                         ban(c);
 143
 144         if(!sel || !isvisible(sel)) {
 145                 for(c = stack; c && !isvisible(c); c = c->snext);
 146                 focus(c);
 147         }
 148         restack();
 149 }
 150
 151 void
 152 focusnext(Arg *arg) {
 153         Client *c;
 154
 155         if(!sel)
 156                 return;
 157         if(!(c = getnext(sel->next)))
 158                 c = getnext(clients);
 159         if(c) {
 160                 focus(c);
 161                 restack();
 162         }
 163 }
 164
 165 void
 166 focusprev(Arg *arg) {
 167         Client *c;
 168
 169         if(!sel)
 170                 return;
 171         if(!(c = getprev(sel->prev))) {
 172                 for(c = clients; c && c->next; c = c->next);
 173                 c = getprev(c);
 174         }
 175         if(c) {
 176                 focus(c);
 177                 restack();
 178         }
 179 }
 180
 181 Bool
 182 isvisible(Client *c) {
 183         unsigned int i;
 184
 185         for(i = 0; i < ntags; i++)
 186                 if(c->tags[i] && seltag[i])
 187                         return True;
 188         return False;
 189 }
 190
 191 void
 192 resizemaster(Arg *arg) {
 193         if(arg->i == 0)
 194                 master = MASTER;
 195         else {
 196                 if(master + arg->i > 950 || master + arg->i < 50)
 197                         return;
 198                 master += arg->i;
 199         }
 200         arrange();
 201 }
 202
 203 void
 204 restack(void) {
 205         Client *c;
 206         XEvent ev;
 207
 208         if(!sel) {
 209                 drawstatus();
 210                 return;
 211         }
 212         if(sel->isfloat || arrange == dofloat) {
 213                 XRaiseWindow(dpy, sel->win);
 214                 XRaiseWindow(dpy, sel->twin);
 215         }
 216         if(arrange != dofloat) {
 217                 if(!sel->isfloat) {
 218                         XLowerWindow(dpy, sel->twin);
 219                         XLowerWindow(dpy, sel->win);
 220                 }
 221                 for(c = nexttiled(clients); c; c = nexttiled(c->next)) {
 222                         if(c == sel)
 223                                 continue;
 224                         XLowerWindow(dpy, c->twin);
 225                         XLowerWindow(dpy, c->win);
 226                 }
 227         }
 228         drawall();
 229         XSync(dpy, False);
 230         while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
 231 }
 232
 233 void
 234 togglemode(Arg *arg) {
 235         arrange = (arrange == dofloat) ? dotile : dofloat;
 236         if(sel)
 237                 arrange();
 238         else
 239                 drawstatus();
 240 }
 241
 242 void
 243 toggleview(Arg *arg) {
 244         unsigned int i;
 245
 246         seltag[arg->i] = !seltag[arg->i];
 247         for(i = 0; i < ntags && !seltag[i]; i++);
 248         if(i == ntags)
 249                 seltag[arg->i] = True; /* cannot toggle last view */
 250         reorder();
 251         arrange();
 252 }
 253
 254 void
 255 view(Arg *arg) {
 256         unsigned int i;
 257
 258         for(i = 0; i < ntags; i++)
 259                 seltag[i] = False;
 260         seltag[arg->i] = True;
 261         reorder();
 262         arrange();
 263 }
 264
 265 void
 266 viewall(Arg *arg) {
 267         unsigned int i;
 268
 269         for(i = 0; i < ntags; i++)
 270                 seltag[i] = True;
 271         reorder();
 272         arrange();
 273 }
 274
 275 void
 276 zoom(Arg *arg) {
 277         unsigned int n;
 278         Client *c;
 279
 280         if(!sel)
 281                 return;
 282         if(sel->isfloat || (arrange == dofloat)) {
 283                 togglemax(sel);
 284                 return;
 285         }
 286         for(n = 0, c = clients; c; c = c->next)
 287                 if(isvisible(c) && !c->isfloat)
 288                         n++;
 289         if(n < 2 || (arrange == dofloat))
 290                 return;
 291         if((c = sel) == nexttiled(clients))
 292                 if(!(c = nexttiled(c->next)))
 293                         return;
 294         detach(c);
 295         if(clients)
 296                 clients->prev = c;
 297         c->next = clients;
 298         clients = c;
 299         focus(c);
 300         arrange();
 301 }