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(void) {
  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(void) {
  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 - 2 * BORDERPX;
  53                 c->rh = c->h; c->h = sh - bh - 2 * BORDERPX;
  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 = nexttiled(clients); c; c = nexttiled(c->next))
 105                 n++;
 106
 107         if(n > 1)
 108                 h = (sh - bh) / (n - 1);
 109         else
 110                 h = sh - bh;
 111
 112         for(i = 0, c = clients; c; c = c->next) {
 113                 if(isvisible(c)) {
 114                         if(c->isfloat) {
 115                                 resize(c, True, TopLeft);
 116                                 continue;
 117                         }
 118                         c->ismax = False;
 119                         if(n == 1) {
 120                                 c->x = sx;
 121                                 c->y = sy + bh;
 122                                 c->w = sw - 2 * BORDERPX;
 123                                 c->h = sh - 2 * BORDERPX - bh;
 124                         }
 125                         else if(i == 0) {
 126                                 c->x = sx;
 127                                 c->y = sy + bh;
 128                                 c->w = mw - 2 * BORDERPX;
 129                                 c->h = sh - 2 * BORDERPX - bh;
 130                         }
 131                         else if(h > bh) {
 132                                 c->x = sx + mw;
 133                                 c->y = sy + (i - 1) * h + bh;
 134                                 c->w = w - 2 * BORDERPX;
 135                                 if(i + 1 == n)
 136                                         c->h = sh - c->y - 2 * BORDERPX;
 137                                 else
 138                                         c->h = h - 2 * BORDERPX;
 139                         }
 140                         else { /* fallback if h < bh */
 141                                 c->x = sx + mw;
 142                                 c->y = sy + bh;
 143                                 c->w = w - 2 * BORDERPX;
 144                                 c->h = sh - 2 * BORDERPX - bh;
 145                         }
 146                         resize(c, False, TopLeft);
 147                         i++;
 148                 }
 149                 else
 150                         ban(c);
 151         }
 152         if(!sel || !isvisible(sel)) {
 153                 for(c = stack; c && !isvisible(c); c = c->snext);
 154                 focus(c);
 155         }
 156         restack();
 157 }
 158
 159 void
 160 focusnext(Arg *arg) {
 161         Client *c;
 162
 163         if(!sel)
 164                 return;
 165
 166         if(!(c = getnext(sel->next)))
 167                 c = getnext(clients);
 168         if(c) {
 169                 focus(c);
 170                 restack();
 171         }
 172 }
 173
 174 void
 175 focusprev(Arg *arg) {
 176         Client *c;
 177
 178         if(!sel)
 179                 return;
 180
 181         if(!(c = getprev(sel->prev))) {
 182                 for(c = clients; c && c->next; c = c->next);
 183                 c = getprev(c);
 184         }
 185         if(c) {
 186                 focus(c);
 187                 restack();
 188         }
 189 }
 190
 191 Bool
 192 isvisible(Client *c) {
 193         unsigned int i;
 194
 195         for(i = 0; i < ntags; i++)
 196                 if(c->tags[i] && seltag[i])
 197                         return True;
 198         return False;
 199 }
 200
 201 void
 202 resizecol(Arg *arg) {
 203         unsigned int n;
 204         Client *c;
 205
 206         for(n = 0, c = clients; c; c = c->next)
 207                 if(isvisible(c) && !c->isfloat)
 208                         n++;
 209         if(!sel || sel->isfloat || n < 2 || (arrange == dofloat))
 210                 return;
 211
 212         if(sel == getnext(clients)) {
 213                 if(mw + arg->i > sw - 100 || mw + arg->i < 100)
 214                         return;
 215                 mw += arg->i;
 216         }
 217         else {
 218                 if(mw - arg->i > sw - 100 || mw - arg->i < 100)
 219                         return;
 220                 mw -= arg->i;
 221         }
 222         arrange(NULL);
 223 }
 224
 225 void
 226 restack(void) {
 227         Client *c;
 228         XEvent ev;
 229
 230         if(!sel) {
 231                 drawstatus();
 232                 return;
 233         }
 234         if(sel->isfloat || arrange == dofloat) {
 235                 XRaiseWindow(dpy, sel->win);
 236                 XRaiseWindow(dpy, sel->twin);
 237         }
 238         if(arrange != dofloat)
 239                 for(c = nexttiled(clients); c; c = nexttiled(c->next)) {
 240                         XLowerWindow(dpy, c->twin);
 241                         XLowerWindow(dpy, c->win);
 242                 }
 243         drawall();
 244         XSync(dpy, False);
 245         while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
 246 }
 247
 248 void
 249 togglemode(Arg *arg) {
 250         arrange = (arrange == dofloat) ? dotile : dofloat;
 251         if(sel)
 252                 arrange(NULL);
 253         else
 254                 drawstatus();
 255 }
 256
 257 void
 258 toggleview(Arg *arg) {
 259         unsigned int i;
 260
 261         seltag[arg->i] = !seltag[arg->i];
 262         for(i = 0; i < ntags && !seltag[i]; i++);
 263         if(i == ntags)
 264                 seltag[arg->i] = True; /* cannot toggle last view */
 265         reorder();
 266         arrange(NULL);
 267 }
 268
 269 void
 270 view(Arg *arg) {
 271         unsigned int i;
 272
 273         for(i = 0; i < ntags; i++)
 274                 seltag[i] = False;
 275         seltag[arg->i] = True;
 276         reorder();
 277         arrange(NULL);
 278 }
 279
 280 void
 281 viewall(Arg *arg) {
 282         unsigned int i;
 283
 284         for(i = 0; i < ntags; i++)
 285                 seltag[i] = True;
 286         reorder();
 287         arrange(NULL);
 288 }
 289
 290 void
 291 zoom(Arg *arg) {
 292         unsigned int n;
 293         Client *c;
 294
 295         if(!sel)
 296                 return;
 297
 298         if(sel->isfloat || (arrange == dofloat)) {
 299                 togglemax(sel);
 300                 return;
 301         }
 302
 303         for(n = 0, c = clients; c; c = c->next)
 304                 if(isvisible(c) && !c->isfloat)
 305                         n++;
 306         if(n < 2 || (arrange == dofloat))
 307                 return;
 308
 309         if((c = sel) == nexttiled(clients))
 310                 if(!(c = nexttiled(c->next)))
 311                         return;
 312         detach(c);
 313         if(clients)
 314                 clients->prev = c;
 315         c->next = clients;
 316         clients = c;
 317         focus(c);
 318         arrange(NULL);
 319 }