view.c

   1 /* (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>
   2  * See LICENSE file for license details.
   3  */
   4 #include "dwm.h"
   5
   6 /* static */
   7
   8 static Client *
   9 minclient(void) {
  10         Client *c, *min;
  11
  12         if((clients && clients->isfloat) || arrange == dofloat)
  13                 return clients; /* don't touch floating order */
  14         for(min = c = clients; c; c = c->next)
  15                 if(c->weight < min->weight)
  16                         min = c;
  17         return min;
  18 }
  19
  20 static Client *
  21 nexttiled(Client *c) {
  22         for(c = getnext(c); c && c->isfloat; c = getnext(c->next));
  23         return c;
  24 }
  25
  26 static void
  27 reorder(void) {
  28         Client *c, *newclients, *tail;
  29
  30         newclients = tail = NULL;
  31         while((c = minclient())) {
  32                 detach(c);
  33                 if(tail) {
  34                         c->prev = tail;
  35                         tail->next = c;
  36                         tail = c;
  37                 }
  38                 else
  39                         tail = newclients = c;
  40         }
  41         clients = newclients;
  42 }
  43
  44 static void
  45 togglemax(Client *c) {
  46         XEvent ev;
  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 - 2 * BORDERPX;
  52                 c->rh = c->h; c->h = sh - bh - 2 * BORDERPX;
  53         }
  54         else {
  55                 c->x = c->rx;
  56                 c->y = c->ry;
  57                 c->w = c->rw;
  58                 c->h = c->rh;
  59         }
  60         resize(c, True, TopLeft);
  61         while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
  62 }
  63
  64 /* extern */
  65
  66 void (*arrange)(void) = 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(void) {
  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(void) {
  99         unsigned int i, n, mpx, stackw, stackh, th;
 100         Client *c;
 101
 102         for(n = 0, c = nexttiled(clients); c; c = nexttiled(c->next))
 103                 n++;
 104         mpx = (sw * master) / 1000;
 105         stackw = sw - mpx;
 106         stackh = sh - bh;
 107         th = stackh;
 108         if(n > 1)
 109                 th /= (n - 1);
 110
 111         for(i = 0, c = clients; c; c = c->next, i++)
 112                 if(isvisible(c)) {
 113                         if(c->isfloat) {
 114                                 resize(c, True, TopLeft);
 115                                 continue;
 116                         }
 117                         c->ismax = False;
 118                         c->x = sx;
 119                         c->y = sy + bh;
 120                         if(n == 1) { /* only 1 window */
 121                                 c->w = sw - 2 * BORDERPX;
 122                                 c->h = sh - 2 * BORDERPX - bh;
 123                         }
 124                         else if(i == 0) { /* master window */
 125                                 c->w = mpx - 2 * BORDERPX;
 126                                 c->h = sh - bh - 2 * BORDERPX;
 127                         }
 128                         else {  /* tile window */
 129                                 c->x += mpx;
 130                                 c->w = stackw - 2 * BORDERPX;
 131                                 if(th > bh) {
 132                                         c->y = sy + (i - 1) * th + bh;
 133                                         if(i + 1 == n)
 134                                                 c->h = sh - c->y - 2 * BORDERPX;
 135                                         else
 136                                                 c->h = th - 2 * BORDERPX;
 137                                 }
 138                                 else /* fallback if th < bh */
 139                                         c->h = stackh - 2 * BORDERPX;
 140                         }
 141                         resize(c, False, TopLeft);
 142                 }
 143                 else
 144                         ban(c);
 145
 146         if(!sel || !isvisible(sel)) {
 147                 for(c = stack; c && !isvisible(c); c = c->snext);
 148                 focus(c);
 149         }
 150         restack();
 151 }
 152
 153 void
 154 focusnext(Arg *arg) {
 155         Client *c;
 156
 157         if(!sel)
 158                 return;
 159         if(!(c = getnext(sel->next)))
 160                 c = getnext(clients);
 161         if(c) {
 162                 focus(c);
 163                 restack();
 164         }
 165 }
 166
 167 void
 168 focusprev(Arg *arg) {
 169         Client *c;
 170
 171         if(!sel)
 172                 return;
 173         if(!(c = getprev(sel->prev))) {
 174                 for(c = clients; c && c->next; c = c->next);
 175                 c = getprev(c);
 176         }
 177         if(c) {
 178                 focus(c);
 179                 restack();
 180         }
 181 }
 182
 183 Bool
 184 isvisible(Client *c) {
 185         unsigned int i;
 186
 187         for(i = 0; i < ntags; i++)
 188                 if(c->tags[i] && seltag[i])
 189                         return True;
 190         return False;
 191 }
 192
 193 void
 194 resizecol(Arg *arg) {
 195         unsigned int n;
 196         Client *c;
 197
 198         for(n = 0, c = clients; c; c = c->next)
 199                 if(isvisible(c) && !c->isfloat)
 200                         n++;
 201         if(!sel || sel->isfloat || n < 2 || (arrange == dofloat))
 202                 return;
 203         if(sel == getnext(clients)) {
 204                 if(master + arg->i > 950 || master + arg->i < 50)
 205                         return;
 206                 master += arg->i;
 207         }
 208         else {
 209                 if(master - arg->i > 950 || master - arg->i < 50)
 210                         return;
 211                 master -= arg->i;
 212         }
 213         arrange();
 214 }
 215
 216 void
 217 restack(void) {
 218         Client *c;
 219         XEvent ev;
 220
 221         if(!sel) {
 222                 drawstatus();
 223                 return;
 224         }
 225         if(sel->isfloat || arrange == dofloat) {
 226                 XRaiseWindow(dpy, sel->win);
 227                 XRaiseWindow(dpy, sel->twin);
 228         }
 229         if(arrange != dofloat) {
 230                 if(!sel->isfloat) {
 231                         XLowerWindow(dpy, sel->twin);
 232                         XLowerWindow(dpy, sel->win);
 233                 }
 234                 for(c = nexttiled(clients); c; c = nexttiled(c->next)) {
 235                         if(c == sel)
 236                                 continue;
 237                         XLowerWindow(dpy, c->twin);
 238                         XLowerWindow(dpy, c->win);
 239                 }
 240         }
 241         drawall();
 242         XSync(dpy, False);
 243         while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
 244 }
 245
 246 void
 247 togglemode(Arg *arg) {
 248         arrange = (arrange == dofloat) ? dotile : dofloat;
 249         if(sel)
 250                 arrange();
 251         else
 252                 drawstatus();
 253 }
 254
 255 void
 256 toggleview(Arg *arg) {
 257         unsigned int i;
 258
 259         seltag[arg->i] = !seltag[arg->i];
 260         for(i = 0; i < ntags && !seltag[i]; i++);
 261         if(i == ntags)
 262                 seltag[arg->i] = True; /* cannot toggle last view */
 263         reorder();
 264         arrange();
 265 }
 266
 267 void
 268 view(Arg *arg) {
 269         unsigned int i;
 270
 271         for(i = 0; i < ntags; i++)
 272                 seltag[i] = False;
 273         seltag[arg->i] = True;
 274         reorder();
 275         arrange();
 276 }
 277
 278 void
 279 viewall(Arg *arg) {
 280         unsigned int i;
 281
 282         for(i = 0; i < ntags; i++)
 283                 seltag[i] = True;
 284         reorder();
 285         arrange();
 286 }
 287
 288 void
 289 zoom(Arg *arg) {
 290         unsigned int n;
 291         Client *c;
 292
 293         if(!sel)
 294                 return;
 295         if(sel->isfloat || (arrange == dofloat)) {
 296                 togglemax(sel);
 297                 return;
 298         }
 299         for(n = 0, c = clients; c; c = c->next)
 300                 if(isvisible(c) && !c->isfloat)
 301                         n++;
 302         if(n < 2 || (arrange == dofloat))
 303                 return;
 304         if((c = sel) == nexttiled(clients))
 305                 if(!(c = nexttiled(c->next)))
 306                         return;
 307         detach(c);
 308         if(clients)
 309                 clients->prev = c;
 310         c->next = clients;
 311         clients = c;
 312         focus(c);
 313         arrange();
 314 }