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;
  53                 c->rh = c->h; c->h = sh - bh - 2;
  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) && !c->isfloat)
 106                         n++;
 107
 108         if(n > 1)
 109                 h = (sh - bh) / (n - 1);
 110         else
 111                 h = sh - bh;
 112
 113         for(i = 0, c = clients; c; c = c->next) {
 114                 if(isvisible(c)) {
 115                         if(c->isfloat) {
 116                                 resize(c, True, TopLeft);
 117                                 continue;
 118                         }
 119                         if(c->ismax)
 120                                 togglemax(c);
 121                         if(n == 1) {
 122                                 c->x = sx;
 123                                 c->y = sy + bh;
 124                                 c->w = sw - 2;
 125                                 c->h = sh - 2 - bh;
 126                         }
 127                         else if(i == 0) {
 128                                 c->x = sx;
 129                                 c->y = sy + bh;
 130                                 c->w = mw - 2;
 131                                 c->h = sh - 2 - bh;
 132                         }
 133                         else if(h > bh) {
 134                                 c->x = sx + mw;
 135                                 c->y = sy + (i - 1) * h + bh;
 136                                 c->w = w - 2;
 137                                 if(i + 1 == n)
 138                                         c->h = sh - c->y - 2;
 139                                 else
 140                                         c->h = h - 2;
 141                         }
 142                         else { /* fallback if h < bh */
 143                                 c->x = sx + mw;
 144                                 c->y = sy + bh;
 145                                 c->w = w - 2;
 146                                 c->h = sh - 2 - bh;
 147                         }
 148                         resize(c, False, TopLeft);
 149                         i++;
 150                 }
 151                 else
 152                         ban(c);
 153         }
 154         if(!sel || !isvisible(sel)) {
 155                 for(c = stack; c && !isvisible(c); c = c->snext);
 156                 focus(c);
 157         }
 158         restack();
 159 }
 160
 161 void
 162 focusnext(Arg *arg) {
 163         Client *c;
 164
 165         if(!sel)
 166                 return;
 167
 168         if(!(c = getnext(sel->next)))
 169                 c = getnext(clients);
 170         if(c) {
 171                 focus(c);
 172                 restack();
 173         }
 174 }
 175
 176 void
 177 focusprev(Arg *arg) {
 178         Client *c;
 179
 180         if(!sel)
 181                 return;
 182
 183         if(!(c = getprev(sel->prev))) {
 184                 for(c = clients; c && c->next; c = c->next);
 185                 c = getprev(c);
 186         }
 187         if(c) {
 188                 focus(c);
 189                 restack();
 190         }
 191 }
 192
 193 Bool
 194 isvisible(Client *c) {
 195         unsigned int i;
 196
 197         for(i = 0; i < ntags; i++)
 198                 if(c->tags[i] && seltag[i])
 199                         return True;
 200         return False;
 201 }
 202
 203 void
 204 resizecol(Arg *arg) {
 205         unsigned int n;
 206         Client *c;
 207
 208         for(n = 0, c = clients; c; c = c->next)
 209                 if(isvisible(c) && !c->isfloat)
 210                         n++;
 211         if(!sel || sel->isfloat || n < 2 || (arrange == dofloat))
 212                 return;
 213
 214         if(sel == getnext(clients)) {
 215                 if(mw + arg->i > sw - 100 || mw + arg->i < 100)
 216                         return;
 217                 mw += arg->i;
 218         }
 219         else {
 220                 if(mw - arg->i > sw - 100 || mw - arg->i < 100)
 221                         return;
 222                 mw -= arg->i;
 223         }
 224         arrange(NULL);
 225 }
 226
 227 void
 228 restack(void) {
 229         Client *c;
 230         XEvent ev;
 231
 232         if(!sel) {
 233                 drawstatus();
 234                 return;
 235         }
 236         if(sel->isfloat || arrange == dofloat) {
 237                 XRaiseWindow(dpy, sel->win);
 238                 XRaiseWindow(dpy, sel->twin);
 239         }
 240         if(arrange != dofloat)
 241                 for(c = nexttiled(clients); c; c = nexttiled(c->next)) {
 242                         XLowerWindow(dpy, c->twin);
 243                         XLowerWindow(dpy, c->win);
 244                 }
 245         drawall();
 246         XSync(dpy, False);
 247         while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
 248 }
 249
 250 void
 251 togglemode(Arg *arg) {
 252         arrange = (arrange == dofloat) ? dotile : dofloat;
 253         if(sel)
 254                 arrange(NULL);
 255         else
 256                 drawstatus();
 257 }
 258
 259 void
 260 toggleview(Arg *arg) {
 261         unsigned int i;
 262
 263         seltag[arg->i] = !seltag[arg->i];
 264         for(i = 0; i < ntags && !seltag[i]; i++);
 265         if(i == ntags)
 266                 seltag[arg->i] = True; /* cannot toggle last view */
 267         reorder();
 268         arrange(NULL);
 269 }
 270
 271 void
 272 view(Arg *arg) {
 273         unsigned int i;
 274
 275         for(i = 0; i < ntags; i++)
 276                 seltag[i] = False;
 277         seltag[arg->i] = True;
 278         reorder();
 279         arrange(NULL);
 280 }
 281
 282 void
 283 viewall(Arg *arg) {
 284         unsigned int i;
 285
 286         for(i = 0; i < ntags; i++)
 287                 seltag[i] = True;
 288         reorder();
 289         arrange(NULL);
 290 }
 291
 292 void
 293 zoom(Arg *arg) {
 294         unsigned int n;
 295         Client *c;
 296
 297         if(!sel)
 298                 return;
 299
 300         if(sel->isfloat || (arrange == dofloat)) {
 301                 togglemax(sel);
 302                 return;
 303         }
 304
 305         for(n = 0, c = clients; c; c = c->next)
 306                 if(isvisible(c) && !c->isfloat)
 307                         n++;
 308         if(n < 2 || (arrange == dofloat))
 309                 return;
 310
 311         if((c = sel) == nexttiled(clients))
 312                 if(!(c = nexttiled(c->next)))
 313                         return;
 314         detach(c);
 315         if(clients)
 316                 clients->prev = c;
 317         c->next = clients;
 318         clients = c;
 319         focus(c);
 320         arrange(NULL);
 321 }