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         if((c->ismax = !c->ismax)) {
  49                 c->rx = c->x; c->x = sx;
  50                 c->ry = c->y; c->y = bh;
  51                 c->rw = c->w; c->w = sw;
  52                 c->rh = c->h; c->h = sh;
  53         }
  54         else {
  55                 c->x = c->rx;
  56                 c->y = c->ry;
  57                 c->w = c->w;
  58                 c->h = c->h;
  59         }
  60         resize(c, True, TopLeft);
  61         while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
  62 }
  63
  64 /* extern */
  65
  66 void (*arrange)(Arg *) = DEFMODE;
  67
  68 void
  69 detach(Client *c) {
  70         if(c->prev)
  71                 c->prev->next = c->next;
  72         if(c->next)
  73                 c->next->prev = c->prev;
  74         if(c == clients)
  75                 clients = c->next;
  76         c->next = c->prev = NULL;
  77 }
  78
  79 void
  80 dofloat(Arg *arg) {
  81         Client *c;
  82
  83         for(c = clients; c; c = c->next) {
  84                 if(isvisible(c)) {
  85                         resize(c, True, TopLeft);
  86                 }
  87                 else
  88                         ban(c);
  89         }
  90         if(!sel || !isvisible(sel)) {
  91                 for(c = stack; c && !isvisible(c); c = c->snext);
  92                 focus(c);
  93         }
  94         restack();
  95 }
  96
  97 void
  98 dotile(Arg *arg) {
  99         int h, i, n, w;
 100         Client *c;
 101
 102         w = sw - mw;
 103         for(n = 0, c = clients; c; c = c->next)
 104                 if(isvisible(c)) {
 105                         if(c->isfloat) {
 106                                 if(c->ismax)
 107                                         togglemax(c);
 108                         }
 109                         else
 110                                 n++;
 111                 }
 112
 113         if(n > 1)
 114                 h = (sh - bh) / (n - 1);
 115         else
 116                 h = sh - bh;
 117
 118         for(i = 0, c = clients; c; c = c->next) {
 119                 if(isvisible(c)) {
 120                         if(c->isfloat) {
 121                                 resize(c, True, TopLeft);
 122                                 continue;
 123                         }
 124                         if(n == 1) {
 125                                 c->x = sx;
 126                                 c->y = sy + bh;
 127                                 c->w = sw - 2;
 128                                 c->h = sh - 2 - bh;
 129                         }
 130                         else if(i == 0) {
 131                                 c->x = sx;
 132                                 c->y = sy + bh;
 133                                 c->w = mw - 2;
 134                                 c->h = sh - 2 - bh;
 135                         }
 136                         else if(h > bh) {
 137                                 c->x = sx + mw;
 138                                 c->y = sy + (i - 1) * h + bh;
 139                                 c->w = w - 2;
 140                                 if(i + 1 == n)
 141                                         c->h = sh - c->y - 2;
 142                                 else
 143                                         c->h = h - 2;
 144                         }
 145                         else { /* fallback if h < bh */
 146                                 c->x = sx + mw;
 147                                 c->y = sy + bh;
 148                                 c->w = w - 2;
 149                                 c->h = sh - 2 - bh;
 150                         }
 151                         resize(c, False, TopLeft);
 152                         i++;
 153                 }
 154                 else
 155                         ban(c);
 156         }
 157         if(!sel || !isvisible(sel)) {
 158                 for(c = stack; c && !isvisible(c); c = c->snext);
 159                 focus(c);
 160         }
 161         restack();
 162 }
 163
 164 void
 165 focusnext(Arg *arg) {
 166         Client *c;
 167
 168         if(!sel)
 169                 return;
 170
 171         if(!(c = getnext(sel->next)))
 172                 c = getnext(clients);
 173         if(c) {
 174                 focus(c);
 175                 restack();
 176         }
 177 }
 178
 179 void
 180 focusprev(Arg *arg) {
 181         Client *c;
 182
 183         if(!sel)
 184                 return;
 185
 186         if(!(c = getprev(sel->prev))) {
 187                 for(c = clients; c && c->next; c = c->next);
 188                 c = getprev(c);
 189         }
 190         if(c) {
 191                 focus(c);
 192                 restack();
 193         }
 194 }
 195
 196 Bool
 197 isvisible(Client *c) {
 198         unsigned int i;
 199
 200         for(i = 0; i < ntags; i++)
 201                 if(c->tags[i] && seltag[i])
 202                         return True;
 203         return False;
 204 }
 205
 206 void
 207 resizecol(Arg *arg) {
 208         unsigned int n;
 209         Client *c;
 210
 211         for(n = 0, c = clients; c; c = c->next)
 212                 if(isvisible(c) && !c->isfloat)
 213                         n++;
 214         if(!sel || sel->isfloat || n < 2 || (arrange != dotile))
 215                 return;
 216
 217         if(sel == getnext(clients)) {
 218                 if(mw + arg->i > sw - 100 || mw + arg->i < 100)
 219                         return;
 220                 mw += arg->i;
 221         }
 222         else {
 223                 if(mw - arg->i > sw - 100 || mw - arg->i < 100)
 224                         return;
 225                 mw -= arg->i;
 226         }
 227         arrange(NULL);
 228 }
 229
 230 void
 231 restack() {
 232         Client *c;
 233         XEvent ev;
 234
 235         if(!sel) {
 236                 drawstatus();
 237                 return;
 238         }
 239         if(sel->isfloat || arrange == dofloat) {
 240                 XRaiseWindow(dpy, sel->win);
 241                 XRaiseWindow(dpy, sel->twin);
 242         }
 243         if(arrange != dofloat)
 244                 for(c = nexttiled(clients); c; c = nexttiled(c->next)) {
 245                         XLowerWindow(dpy, c->twin);
 246                         XLowerWindow(dpy, c->win);
 247                 }
 248         drawall();
 249         XSync(dpy, False);
 250         while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
 251 }
 252
 253 void
 254 togglemode(Arg *arg) {
 255         arrange = (arrange == dofloat) ? dotile : dofloat;
 256         if(sel)
 257                 arrange(NULL);
 258         else
 259                 drawstatus();
 260 }
 261
 262 void
 263 toggleview(Arg *arg) {
 264         unsigned int i;
 265
 266         seltag[arg->i] = !seltag[arg->i];
 267         for(i = 0; i < ntags && !seltag[i]; i++);
 268         if(i == ntags)
 269                 seltag[arg->i] = True; /* cannot toggle last view */
 270         reorder();
 271         arrange(NULL);
 272 }
 273
 274 void
 275 view(Arg *arg) {
 276         unsigned int i;
 277
 278         for(i = 0; i < ntags; i++)
 279                 seltag[i] = False;
 280         seltag[arg->i] = True;
 281         reorder();
 282         arrange(NULL);
 283 }
 284
 285 void
 286 viewall(Arg *arg) {
 287         unsigned int i;
 288
 289         for(i = 0; i < ntags; i++)
 290                 seltag[i] = True;
 291         reorder();
 292         arrange(NULL);
 293 }
 294
 295 void
 296 zoom(Arg *arg) {
 297         unsigned int n;
 298         Client *c;
 299         XEvent ev;
 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 }