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 (x->maxw && x->minw && x->maxh && x->minh &&
  49                         x->maxw == x->minw && x->maxh == x->minh)
  50                 return;
  51
  52         if((c->ismax = !c->ismax)) {
  53                 c->rx = c->x; c->x = sx;
  54                 c->ry = c->y; c->y = bh;
  55                 c->rw = c->w; c->w = sw - 2 * BORDERPX;
  56                 c->rh = c->h; c->h = sh - bh - 2 * BORDERPX;
  57         }
  58         else {
  59                 c->x = c->rx;
  60                 c->y = c->ry;
  61                 c->w = c->rw;
  62                 c->h = c->rh;
  63         }
  64         resize(c, True, TopLeft);
  65         while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
  66 }
  67
  68 /* extern */
  69
  70 void (*arrange)(void) = DEFMODE;
  71
  72 void
  73 detach(Client *c) {
  74         if(c->prev)
  75                 c->prev->next = c->next;
  76         if(c->next)
  77                 c->next->prev = c->prev;
  78         if(c == clients)
  79                 clients = c->next;
  80         c->next = c->prev = NULL;
  81 }
  82
  83 void
  84 dofloat(void) {
  85         Client *c;
  86
  87         for(c = clients; c; c = c->next) {
  88                 if(isvisible(c)) {
  89                         resize(c, True, TopLeft);
  90                 }
  91                 else
  92                         ban(c);
  93         }
  94         if(!sel || !isvisible(sel)) {
  95                 for(c = stack; c && !isvisible(c); c = c->snext);
  96                 focus(c);
  97         }
  98         restack();
  99 }
 100
 101 void
 102 dotile(void) {
 103         unsigned int i, n, mpx, stackw, stackh, th;
 104         Client *c;
 105
 106         for(n = 0, c = nexttiled(clients); c; c = nexttiled(c->next))
 107                 n++;
 108         mpx = (sw * master) / 1000;
 109         stackw = sw - mpx;
 110         stackh = sh - bh;
 111         th = stackh;
 112         if(n > 1)
 113                 th /= (n - 1);
 114
 115         for(i = 0, c = clients; c; c = c->next)
 116                 if(isvisible(c)) {
 117                         if(c->isfloat) {
 118                                 resize(c, True, TopLeft);
 119                                 continue;
 120                         }
 121                         c->ismax = False;
 122                         c->x = sx;
 123                         c->y = sy + bh;
 124                         if(n == 1) { /* only 1 window */
 125                                 c->w = sw - 2 * BORDERPX;
 126                                 c->h = sh - 2 * BORDERPX - bh;
 127                         }
 128                         else if(i == 0) { /* master window */
 129                                 c->w = mpx - 2 * BORDERPX;
 130                                 c->h = sh - bh - 2 * BORDERPX;
 131                         }
 132                         else {  /* tile window */
 133                                 c->x += mpx;
 134                                 c->w = stackw - 2 * BORDERPX;
 135                                 if(th > bh) {
 136                                         c->y = sy + (i - 1) * th + bh;
 137                                         if(i + 1 == n)
 138                                                 c->h = sh - c->y - 2 * BORDERPX;
 139                                         else
 140                                                 c->h = th - 2 * BORDERPX;
 141                                 }
 142                                 else /* fallback if th < bh */
 143                                         c->h = stackh - 2 * BORDERPX;
 144                         }
 145                         resize(c, False, TopLeft);
 146                         i++;
 147                 }
 148                 else
 149                         ban(c);
 150
 151         if(!sel || !isvisible(sel)) {
 152                 for(c = stack; c && !isvisible(c); c = c->snext);
 153                 focus(c);
 154         }
 155         restack();
 156 }
 157
 158 void
 159 focusnext(Arg *arg) {
 160         Client *c;
 161
 162         if(!sel)
 163                 return;
 164         if(!(c = getnext(sel->next)))
 165                 c = getnext(clients);
 166         if(c) {
 167                 focus(c);
 168                 restack();
 169         }
 170 }
 171
 172 void
 173 focusprev(Arg *arg) {
 174         Client *c;
 175
 176         if(!sel)
 177                 return;
 178         if(!(c = getprev(sel->prev))) {
 179                 for(c = clients; c && c->next; c = c->next);
 180                 c = getprev(c);
 181         }
 182         if(c) {
 183                 focus(c);
 184                 restack();
 185         }
 186 }
 187
 188 Bool
 189 isvisible(Client *c) {
 190         unsigned int i;
 191
 192         for(i = 0; i < ntags; i++)
 193                 if(c->tags[i] && seltag[i])
 194                         return True;
 195         return False;
 196 }
 197
 198 void
 199 resizecol(Arg *arg) {
 200         unsigned int n;
 201         Client *c;
 202
 203         for(n = 0, c = clients; c; c = c->next)
 204                 if(isvisible(c) && !c->isfloat)
 205                         n++;
 206         if(!sel || sel->isfloat || n < 2 || (arrange == dofloat))
 207                 return;
 208         if(sel == getnext(clients)) {
 209                 if(master + arg->i > 950 || master + arg->i < 50)
 210                         return;
 211                 master += arg->i;
 212         }
 213         else {
 214                 if(master - arg->i > 950 || master - arg->i < 50)
 215                         return;
 216                 master -= arg->i;
 217         }
 218         arrange();
 219 }
 220
 221 void
 222 restack(void) {
 223         Client *c;
 224         XEvent ev;
 225
 226         if(!sel) {
 227                 drawstatus();
 228                 return;
 229         }
 230         if(sel->isfloat || arrange == dofloat) {
 231                 XRaiseWindow(dpy, sel->win);
 232                 XRaiseWindow(dpy, sel->twin);
 233         }
 234         if(arrange != dofloat) {
 235                 if(!sel->isfloat) {
 236                         XLowerWindow(dpy, sel->twin);
 237                         XLowerWindow(dpy, sel->win);
 238                 }
 239                 for(c = nexttiled(clients); c; c = nexttiled(c->next)) {
 240                         if(c == sel)
 241                                 continue;
 242                         XLowerWindow(dpy, c->twin);
 243                         XLowerWindow(dpy, c->win);
 244                 }
 245         }
 246         drawall();
 247         XSync(dpy, False);
 248         while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
 249 }
 250
 251 void
 252 togglemode(Arg *arg) {
 253         arrange = (arrange == dofloat) ? dotile : dofloat;
 254         if(sel)
 255                 arrange();
 256         else
 257                 drawstatus();
 258 }
 259
 260 void
 261 toggleview(Arg *arg) {
 262         unsigned int i;
 263
 264         seltag[arg->i] = !seltag[arg->i];
 265         for(i = 0; i < ntags && !seltag[i]; i++);
 266         if(i == ntags)
 267                 seltag[arg->i] = True; /* cannot toggle last view */
 268         reorder();
 269         arrange();
 270 }
 271
 272 void
 273 view(Arg *arg) {
 274         unsigned int i;
 275
 276         for(i = 0; i < ntags; i++)
 277                 seltag[i] = False;
 278         seltag[arg->i] = True;
 279         reorder();
 280         arrange();
 281 }
 282
 283 void
 284 viewall(Arg *arg) {
 285         unsigned int i;
 286
 287         for(i = 0; i < ntags; i++)
 288                 seltag[i] = True;
 289         reorder();
 290         arrange();
 291 }
 292
 293 void
 294 zoom(Arg *arg) {
 295         unsigned int n;
 296         Client *c;
 297
 298         if(!sel)
 299                 return;
 300         if(sel->isfloat || (arrange == dofloat)) {
 301                 togglemax(sel);
 302                 return;
 303         }
 304         for(n = 0, c = clients; c; c = c->next)
 305                 if(isvisible(c) && !c->isfloat)
 306                         n++;
 307         if(n < 2 || (arrange == dofloat))
 308                 return;
 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();
 319 }