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