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 = sx;
  53                 c->ry = c->y; c->y = bh;
  54                 c->rw = c->w; c->w = sw - 2 * BORDERPX;
  55                 c->rh = c->h; c->h = sh - bh - 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, stackh, th;
 103         Client *c;
 104
 105         for(n = 0, c = nexttiled(clients); c; c = nexttiled(c->next))
 106                 n++;
 107         mpx = (sw * master) / 1000;
 108         stackw = sw - mpx;
 109         stackh = sh - bh;
 110         th = stackh;
 111         if(n > 1)
 112                 th /= (n - 1);
 113
 114         for(i = 0, c = clients; c; c = c->next)
 115                 if(isvisible(c)) {
 116                         if(c->isfloat) {
 117                                 resize(c, True, TopLeft);
 118                                 continue;
 119                         }
 120                         c->ismax = False;
 121                         c->x = sx;
 122                         c->y = sy + bh;
 123                         if(n == 1) { /* only 1 window */
 124                                 c->w = sw - 2 * BORDERPX;
 125                                 c->h = sh - 2 * BORDERPX - bh;
 126                         }
 127                         else if(i == 0) { /* master window */
 128                                 c->w = mpx - 2 * BORDERPX;
 129                                 c->h = sh - bh - 2 * BORDERPX;
 130                         }
 131                         else {  /* tile window */
 132                                 c->x += mpx;
 133                                 c->w = stackw - 2 * BORDERPX;
 134                                 if(th > bh) {
 135                                         c->y = sy + (i - 1) * th + bh;
 136                                         if(i + 1 == n)
 137                                                 c->h = sh - c->y - 2 * BORDERPX;
 138                                         else
 139                                                 c->h = th - 2 * BORDERPX;
 140                                 }
 141                                 else /* fallback if th < bh */
 142                                         c->h = stackh - 2 * BORDERPX;
 143                         }
 144                         resize(c, False, TopLeft);
 145                         i++;
 146                 }
 147                 else
 148                         ban(c);
 149
 150         if(!sel || !isvisible(sel)) {
 151                 for(c = stack; c && !isvisible(c); c = c->snext);
 152                 focus(c);
 153         }
 154         restack();
 155 }
 156
 157 void
 158 focusnext(Arg *arg) {
 159         Client *c;
 160
 161         if(!sel)
 162                 return;
 163         if(!(c = getnext(sel->next)))
 164                 c = getnext(clients);
 165         if(c) {
 166                 focus(c);
 167                 restack();
 168         }
 169 }
 170
 171 void
 172 focusprev(Arg *arg) {
 173         Client *c;
 174
 175         if(!sel)
 176                 return;
 177         if(!(c = getprev(sel->prev))) {
 178                 for(c = clients; c && c->next; c = c->next);
 179                 c = getprev(c);
 180         }
 181         if(c) {
 182                 focus(c);
 183                 restack();
 184         }
 185 }
 186
 187 Bool
 188 isvisible(Client *c) {
 189         unsigned int i;
 190
 191         for(i = 0; i < ntags; i++)
 192                 if(c->tags[i] && seltag[i])
 193                         return True;
 194         return False;
 195 }
 196
 197 void
 198 resizecol(Arg *arg) {
 199         if(master + arg->i > 950 || master + arg->i < 50)
 200                 return;
 201         master += arg->i;
 202         arrange();
 203 }
 204
 205 void
 206 restack(void) {
 207         Client *c;
 208         XEvent ev;
 209
 210         if(!sel) {
 211                 drawstatus();
 212                 return;
 213         }
 214         if(sel->isfloat || arrange == dofloat) {
 215                 XRaiseWindow(dpy, sel->win);
 216                 XRaiseWindow(dpy, sel->twin);
 217         }
 218         if(arrange != dofloat) {
 219                 if(!sel->isfloat) {
 220                         XLowerWindow(dpy, sel->twin);
 221                         XLowerWindow(dpy, sel->win);
 222                 }
 223                 for(c = nexttiled(clients); c; c = nexttiled(c->next)) {
 224                         if(c == sel)
 225                                 continue;
 226                         XLowerWindow(dpy, c->twin);
 227                         XLowerWindow(dpy, c->win);
 228                 }
 229         }
 230         drawall();
 231         XSync(dpy, False);
 232         while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
 233 }
 234
 235 void
 236 togglemode(Arg *arg) {
 237         arrange = (arrange == dofloat) ? dotile : dofloat;
 238         if(sel)
 239                 arrange();
 240         else
 241                 drawstatus();
 242 }
 243
 244 void
 245 toggleview(Arg *arg) {
 246         unsigned int i;
 247
 248         seltag[arg->i] = !seltag[arg->i];
 249         for(i = 0; i < ntags && !seltag[i]; i++);
 250         if(i == ntags)
 251                 seltag[arg->i] = True; /* cannot toggle last view */
 252         reorder();
 253         arrange();
 254 }
 255
 256 void
 257 view(Arg *arg) {
 258         unsigned int i;
 259
 260         for(i = 0; i < ntags; i++)
 261                 seltag[i] = False;
 262         seltag[arg->i] = True;
 263         reorder();
 264         arrange();
 265 }
 266
 267 void
 268 viewall(Arg *arg) {
 269         unsigned int i;
 270
 271         for(i = 0; i < ntags; i++)
 272                 seltag[i] = True;
 273         reorder();
 274         arrange();
 275 }
 276
 277 void
 278 zoom(Arg *arg) {
 279         unsigned int n;
 280         Client *c;
 281
 282         if(!sel)
 283                 return;
 284         if(sel->isfloat || (arrange == dofloat)) {
 285                 togglemax(sel);
 286                 return;
 287         }
 288         for(n = 0, c = clients; c; c = c->next)
 289                 if(isvisible(c) && !c->isfloat)
 290                         n++;
 291         if(n < 2 || (arrange == dofloat))
 292                 return;
 293         if((c = sel) == nexttiled(clients))
 294                 if(!(c = nexttiled(c->next)))
 295                         return;
 296         detach(c);
 297         if(clients)
 298                 clients->prev = c;
 299         c->next = clients;
 300         clients = c;
 301         focus(c);
 302         arrange();
 303 }