view.c

   1 /* (C)opyright MMVI-MMVII 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 nexttiled(Client *c) {
  10         for(c = getnext(c); c && c->isfloat; c = getnext(c->next));
  11         return c;
  12 }
  13
  14 static void
  15 togglemax(Client *c) {
  16         XEvent ev;
  17
  18         if(c->isfixed)
  19                 return;
  20
  21         if((c->ismax = !c->ismax)) {
  22                 c->rx = c->x; c->x = wax;
  23                 c->ry = c->y; c->y = way;
  24                 c->rw = c->w; c->w = waw - 2 * BORDERPX;
  25                 c->rh = c->h; c->h = wah - 2 * BORDERPX;
  26         }
  27         else {
  28                 c->x = c->rx;
  29                 c->y = c->ry;
  30                 c->w = c->rw;
  31                 c->h = c->rh;
  32         }
  33         resize(c, True, TopLeft);
  34         while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
  35 }
  36
  37 /* extern */
  38
  39 void (*arrange)(void) = DEFMODE;
  40
  41 void
  42 detach(Client *c) {
  43         if(c->prev)
  44                 c->prev->next = c->next;
  45         if(c->next)
  46                 c->next->prev = c->prev;
  47         if(c == clients)
  48                 clients = c->next;
  49         c->next = c->prev = NULL;
  50 }
  51
  52 void
  53 dofloat(void) {
  54         Client *c;
  55
  56         for(c = clients; c; c = c->next) {
  57                 if(isvisible(c)) {
  58                         resize(c, True, TopLeft);
  59                 }
  60                 else
  61                         ban(c);
  62         }
  63         if(!sel || !isvisible(sel)) {
  64                 for(c = stack; c && !isvisible(c); c = c->snext);
  65                 focus(c);
  66         }
  67         restack();
  68 }
  69
  70 void
  71 dotile(void) {
  72         unsigned int i, n, mw, mh, tw, th;
  73         Client *c;
  74
  75         for(n = 0, c = nexttiled(clients); c; c = nexttiled(c->next))
  76                 n++;
  77         /* window geoms */
  78         mw = (n > nmaster) ? (waw * master) / 1000 : waw;
  79         mh = (n > nmaster) ? wah / nmaster : wah / (n > 0 ? n : 1);
  80         tw = waw - mw;
  81         th = (n > nmaster) ? wah / (n - nmaster) : 0;
  82
  83         for(i = 0, c = clients; c; c = c->next)
  84                 if(isvisible(c)) {
  85                         if(c->isfloat) {
  86                                 resize(c, True, TopLeft);
  87                                 continue;
  88                         }
  89                         c->ismax = False;
  90                         c->x = wax;
  91                         c->y = way;
  92                         if(i < nmaster) {
  93                                 c->y += i * mh;
  94                                 c->w = mw - 2 * BORDERPX;
  95                                 c->h = mh - 2 * BORDERPX;
  96                         }
  97                         else {  /* tile window */
  98                                 c->x += mw;
  99                                 c->w = tw - 2 * BORDERPX;
 100                                 if(th > bh) {
 101                                         c->y += (i - nmaster) * th;
 102                                         c->h = th - 2 * BORDERPX;
 103                                 }
 104                                 else /* fallback if th < bh */
 105                                         c->h = wah - 2 * BORDERPX;
 106                         }
 107                         resize(c, False, TopLeft);
 108                         i++;
 109                 }
 110                 else
 111                         ban(c);
 112
 113         if(!sel || !isvisible(sel)) {
 114                 for(c = stack; c && !isvisible(c); c = c->snext);
 115                 focus(c);
 116         }
 117         restack();
 118 }
 119
 120 void
 121 focusnext(Arg *arg) {
 122         Client *c;
 123
 124         if(!sel)
 125                 return;
 126         if(!(c = getnext(sel->next)))
 127                 c = getnext(clients);
 128         if(c) {
 129                 focus(c);
 130                 restack();
 131         }
 132 }
 133
 134 void
 135 focusprev(Arg *arg) {
 136         Client *c;
 137
 138         if(!sel)
 139                 return;
 140         if(!(c = getprev(sel->prev))) {
 141                 for(c = clients; c && c->next; c = c->next);
 142                 c = getprev(c);
 143         }
 144         if(c) {
 145                 focus(c);
 146                 restack();
 147         }
 148 }
 149
 150 void
 151 incnmaster(Arg *arg) {
 152         if((nmaster + arg->i < 1) || (wah / (nmaster + arg->i) < bh))
 153                 return;
 154         nmaster += arg->i;
 155         arrange();
 156 }
 157
 158 Bool
 159 isvisible(Client *c) {
 160         unsigned int i;
 161
 162         for(i = 0; i < ntags; i++)
 163                 if(c->tags[i] && seltag[i])
 164                         return True;
 165         return False;
 166 }
 167
 168 void
 169 resizemaster(Arg *arg) {
 170         if(arg->i == 0)
 171                 master = MASTER;
 172         else {
 173                 if(master + arg->i > 950 || master + arg->i < 50)
 174                         return;
 175                 master += arg->i;
 176         }
 177         arrange();
 178 }
 179
 180 void
 181 restack(void) {
 182         Client *c;
 183         XEvent ev;
 184
 185         if(!sel) {
 186                 drawstatus();
 187                 return;
 188         }
 189         if(sel->isfloat || arrange == dofloat) {
 190                 XRaiseWindow(dpy, sel->win);
 191                 XRaiseWindow(dpy, sel->twin);
 192         }
 193         if(arrange != dofloat) {
 194                 if(!sel->isfloat) {
 195                         XLowerWindow(dpy, sel->twin);
 196                         XLowerWindow(dpy, sel->win);
 197                 }
 198                 for(c = nexttiled(clients); c; c = nexttiled(c->next)) {
 199                         if(c == sel)
 200                                 continue;
 201                         XLowerWindow(dpy, c->twin);
 202                         XLowerWindow(dpy, c->win);
 203                 }
 204         }
 205         drawall();
 206         XSync(dpy, False);
 207         while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
 208 }
 209
 210 void
 211 togglefloat(Arg *arg) {
 212         if (!sel || arrange == dofloat)
 213                 return;
 214         sel->isfloat = !sel->isfloat;
 215         arrange();
 216 }
 217
 218 void
 219 togglemode(Arg *arg) {
 220         arrange = (arrange == dofloat) ? dotile : dofloat;
 221         if(sel)
 222                 arrange();
 223         else
 224                 drawstatus();
 225 }
 226
 227 void
 228 toggleview(Arg *arg) {
 229         unsigned int i;
 230
 231         seltag[arg->i] = !seltag[arg->i];
 232         for(i = 0; i < ntags && !seltag[i]; i++);
 233         if(i == ntags)
 234                 seltag[arg->i] = True; /* cannot toggle last view */
 235         arrange();
 236 }
 237
 238 void
 239 view(Arg *arg) {
 240         unsigned int i;
 241
 242         for(i = 0; i < ntags; i++)
 243                 seltag[i] = (arg->i == -1) ? True : False;
 244         if(arg->i >= 0 && arg->i < ntags)
 245                 seltag[arg->i] = True;
 246         arrange();
 247 }
 248
 249 void
 250 zoom(Arg *arg) {
 251         unsigned int n;
 252         Client *c;
 253
 254         if(!sel)
 255                 return;
 256         if(sel->isfloat || (arrange == dofloat)) {
 257                 togglemax(sel);
 258                 return;
 259         }
 260         for(n = 0, c = nexttiled(clients); c; c = nexttiled(c->next))
 261                 n++;
 262
 263         if((c = sel) == nexttiled(clients))
 264                 if(!(c = nexttiled(c->next)))
 265                         return;
 266         detach(c);
 267         if(clients)
 268                 clients->prev = c;
 269         c->next = clients;
 270         clients = c;
 271         focus(c);
 272         arrange();
 273 }