view.c

   1 /*
   2  * (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>
   3  * See LICENSE file for license details.
   4  */
   5 #include "dwm.h"
   6
   7 /* static */
   8
   9 static Client *
  10 minclient() {
  11         Client *c, *min;
  12
  13         if((clients && clients->isfloat) || arrange == dofloat)
  14                 return clients; /* don't touch floating order */
  15         for(min = c = clients; c; c = c->next)
  16                 if(c->weight < min->weight)
  17                         min = c;
  18         return min;
  19 }
  20
  21 static Client *
  22 nexttiled(Client *c) {
  23         for(c = getnext(c); c && c->isfloat; c = getnext(c->next));
  24         return c;
  25 }
  26
  27 static void
  28 reorder() {
  29         Client *c, *newclients, *tail;
  30
  31         newclients = tail = NULL;
  32         while((c = minclient())) {
  33                 detach(c);
  34                 if(tail) {
  35                         c->prev = tail;
  36                         tail->next = c;
  37                         tail = c;
  38                 }
  39                 else
  40                         tail = newclients = c;
  41         }
  42         clients = newclients;
  43 }
  44
  45 static void
  46 togglemax(Client *c)
  47 {
  48         XEvent ev;
  49         if((c->ismax = !c->ismax)) {
  50                 c->rx = c->x; c->x = sx;
  51                 c->ry = c->y; c->y = bh;
  52                 c->rw = c->w; c->w = sw;
  53                 c->rh = c->h; c->h = sh - bh;
  54         }
  55         else {
  56                 c->x = c->rx;
  57                 c->y = c->ry;
  58                 c->w = c->rw;
  59                 c->h = c->rh;
  60         }
  61         resize(c, True, TopLeft);
  62         while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
  63 }
  64
  65 /* extern */
  66
  67 void (*arrange)(Arg *) = DEFMODE;
  68
  69 void
  70 detach(Client *c) {
  71         if(c->prev)
  72                 c->prev->next = c->next;
  73         if(c->next)
  74                 c->next->prev = c->prev;
  75         if(c == clients)
  76                 clients = c->next;
  77         c->next = c->prev = NULL;
  78 }
  79
  80 void
  81 dofloat(Arg *arg) {
  82         Client *c;
  83
  84         for(c = clients; c; c = c->next) {
  85                 if(isvisible(c)) {
  86                         resize(c, True, TopLeft);
  87                 }
  88                 else
  89                         ban(c);
  90         }
  91         if(!sel || !isvisible(sel)) {
  92                 for(c = stack; c && !isvisible(c); c = c->snext);
  93                 focus(c);
  94         }
  95         restack();
  96 }
  97
  98 void
  99 dotile(Arg *arg) {
 100         int h, i, n, w;
 101         Client *c;
 102
 103         w = sw - mw;
 104         for(n = 0, c = clients; c; c = c->next)
 105                 if(isvisible(c)) {
 106                         if(c->isfloat) {
 107                                 if(c->ismax)
 108                                         togglemax(c);
 109                         }
 110                         else
 111                                 n++;
 112                 }
 113
 114         if(n > 1)
 115                 h = (sh - bh) / (n - 1);
 116         else
 117                 h = sh - bh;
 118
 119         for(i = 0, c = clients; c; c = c->next) {
 120                 if(isvisible(c)) {
 121                         if(c->isfloat) {
 122                                 resize(c, True, TopLeft);
 123                                 continue;
 124                         }
 125                         if(n == 1) {
 126                                 c->x = sx;
 127                                 c->y = sy + bh;
 128                                 c->w = sw - 2;
 129                                 c->h = sh - 2 - bh;
 130                         }
 131                         else if(i == 0) {
 132                                 c->x = sx;
 133                                 c->y = sy + bh;
 134                                 c->w = mw - 2;
 135                                 c->h = sh - 2 - bh;
 136                         }
 137                         else if(h > bh) {
 138                                 c->x = sx + mw;
 139                                 c->y = sy + (i - 1) * h + bh;
 140                                 c->w = w - 2;
 141                                 if(i + 1 == n)
 142                                         c->h = sh - c->y - 2;
 143                                 else
 144                                         c->h = h - 2;
 145                         }
 146                         else { /* fallback if h < bh */
 147                                 c->x = sx + mw;
 148                                 c->y = sy + bh;
 149                                 c->w = w - 2;
 150                                 c->h = sh - 2 - bh;
 151                         }
 152                         resize(c, False, TopLeft);
 153                         i++;
 154                 }
 155                 else
 156                         ban(c);
 157         }
 158         if(!sel || !isvisible(sel)) {
 159                 for(c = stack; c && !isvisible(c); c = c->snext);
 160                 focus(c);
 161         }
 162         restack();
 163 }
 164
 165 void
 166 focusnext(Arg *arg) {
 167         Client *c;
 168
 169         if(!sel)
 170                 return;
 171
 172         if(!(c = getnext(sel->next)))
 173                 c = getnext(clients);
 174         if(c) {
 175                 focus(c);
 176                 restack();
 177         }
 178 }
 179
 180 void
 181 focusprev(Arg *arg) {
 182         Client *c;
 183
 184         if(!sel)
 185                 return;
 186
 187         if(!(c = getprev(sel->prev))) {
 188                 for(c = clients; c && c->next; c = c->next);
 189                 c = getprev(c);
 190         }
 191         if(c) {
 192                 focus(c);
 193                 restack();
 194         }
 195 }
 196
 197 Bool
 198 isvisible(Client *c) {
 199         unsigned int i;
 200
 201         for(i = 0; i < ntags; i++)
 202                 if(c->tags[i] && seltag[i])
 203                         return True;
 204         return False;
 205 }
 206
 207 void
 208 resizecol(Arg *arg) {
 209         unsigned int n;
 210         Client *c;
 211
 212         for(n = 0, c = clients; c; c = c->next)
 213                 if(isvisible(c) && !c->isfloat)
 214                         n++;
 215         if(!sel || sel->isfloat || n < 2 || (arrange != dotile))
 216                 return;
 217
 218         if(sel == getnext(clients)) {
 219                 if(mw + arg->i > sw - 100 || mw + arg->i < 100)
 220                         return;
 221                 mw += arg->i;
 222         }
 223         else {
 224                 if(mw - arg->i > sw - 100 || mw - arg->i < 100)
 225                         return;
 226                 mw -= arg->i;
 227         }
 228         arrange(NULL);
 229 }
 230
 231 void
 232 restack() {
 233         Client *c;
 234         XEvent ev;
 235
 236         if(!sel) {
 237                 drawstatus();
 238                 return;
 239         }
 240         if(sel->isfloat || arrange == dofloat) {
 241                 XRaiseWindow(dpy, sel->win);
 242                 XRaiseWindow(dpy, sel->twin);
 243         }
 244         if(arrange != dofloat)
 245                 for(c = nexttiled(clients); c; c = nexttiled(c->next)) {
 246                         XLowerWindow(dpy, c->twin);
 247                         XLowerWindow(dpy, c->win);
 248                 }
 249         drawall();
 250         XSync(dpy, False);
 251         while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
 252 }
 253
 254 void
 255 togglemode(Arg *arg) {
 256         arrange = (arrange == dofloat) ? dotile : dofloat;
 257         if(sel)
 258                 arrange(NULL);
 259         else
 260                 drawstatus();
 261 }
 262
 263 void
 264 toggleview(Arg *arg) {
 265         unsigned int i;
 266
 267         seltag[arg->i] = !seltag[arg->i];
 268         for(i = 0; i < ntags && !seltag[i]; i++);
 269         if(i == ntags)
 270                 seltag[arg->i] = True; /* cannot toggle last view */
 271         reorder();
 272         arrange(NULL);
 273 }
 274
 275 void
 276 view(Arg *arg) {
 277         unsigned int i;
 278
 279         for(i = 0; i < ntags; i++)
 280                 seltag[i] = False;
 281         seltag[arg->i] = True;
 282         reorder();
 283         arrange(NULL);
 284 }
 285
 286 void
 287 viewall(Arg *arg) {
 288         unsigned int i;
 289
 290         for(i = 0; i < ntags; i++)
 291                 seltag[i] = True;
 292         reorder();
 293         arrange(NULL);
 294 }
 295
 296 void
 297 zoom(Arg *arg) {
 298         unsigned int n;
 299         Client *c;
 300
 301         if(!sel)
 302                 return;
 303
 304         if(sel->isfloat || (arrange == dofloat)) {
 305                 togglemax(sel);
 306                 return;
 307         }
 308
 309         for(n = 0, c = clients; c; c = c->next)
 310                 if(isvisible(c) && !c->isfloat)
 311                         n++;
 312         if(n < 2 || (arrange != dotile))
 313                 return;
 314
 315         if((c = sel) == nexttiled(clients))
 316                 if(!(c = nexttiled(c->next)))
 317                         return;
 318         detach(c);
 319         if(clients)
 320                 clients->prev = c;
 321         c->next = clients;
 322         clients = c;
 323         focus(c);
 324         arrange(NULL);
 325 }