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 #include <stdio.h>
   6
   7 /* static */
   8
   9 static Client *
  10 nexttiled(Client *c) {
  11         for(c = getnext(c); c && c->isfloat; c = getnext(c->next));
  12         return c;
  13 }
  14
  15 static void
  16 togglemax(Client *c) {
  17         XEvent ev;
  18
  19         if(c->isfixed)
  20                 return;
  21
  22         if((c->ismax = !c->ismax)) {
  23                 c->rx = c->x; c->x = wax;
  24                 c->ry = c->y; c->y = way;
  25                 c->rw = c->w; c->w = waw - 2 * BORDERPX;
  26                 c->rh = c->h; c->h = wah - 2 * BORDERPX;
  27         }
  28         else {
  29                 c->x = c->rx;
  30                 c->y = c->ry;
  31                 c->w = c->rw;
  32                 c->h = c->rh;
  33         }
  34         resize(c, True, TopLeft);
  35         while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
  36 }
  37
  38 /* extern */
  39
  40 void (*arrange)(void) = DEFMODE;
  41
  42 void
  43 detach(Client *c) {
  44         if(c->prev)
  45                 c->prev->next = c->next;
  46         if(c->next)
  47                 c->next->prev = c->prev;
  48         if(c == clients)
  49                 clients = c->next;
  50         c->next = c->prev = NULL;
  51 }
  52
  53 void
  54 dofloat(void) {
  55         Client *c;
  56
  57         for(c = clients; c; c = c->next) {
  58                 if(isvisible(c)) {
  59                         resize(c, True, TopLeft);
  60                 }
  61                 else
  62                         ban(c);
  63         }
  64         if(!sel || !isvisible(sel)) {
  65                 for(c = stack; c && !isvisible(c); c = c->snext);
  66                 focus(c);
  67         }
  68         restack();
  69 }
  70
  71 void
  72 dotile(void) {
  73         unsigned int i, n, mw, mh, tw, th;
  74         Client *c;
  75
  76         for(n = 0, c = nexttiled(clients); c; c = nexttiled(c->next))
  77                 n++;
  78
  79         /* window geoms */
  80         if(nmaster > 0) {
  81                 mh = (n > nmaster) ?  wah / nmaster : wah / (n > 0 ? n : 1);
  82                 mw = (n > nmaster) ? (waw * master) / 1000 : waw;
  83         }
  84         else
  85                 mh = mw = 0;
  86         th = (n > nmaster) ? wah / (n - nmaster) : 0;
  87         tw = waw - mw;
  88
  89         for(i = 0, c = clients; c; c = c->next)
  90                 if(isvisible(c)) {
  91                         if(c->isfloat) {
  92                                 resize(c, True, TopLeft);
  93                                 continue;
  94                         }
  95                         c->ismax = False;
  96                         c->x = wax;
  97                         c->y = way;
  98                         if((nmaster > 0) && (i < nmaster)) {
  99                                 c->y += i * mh;
 100                                 c->w = mw - 2 * BORDERPX;
 101                                 c->h = mh - 2 * BORDERPX;
 102                         }
 103                         else {  /* tile window */
 104                                 c->x += mw;
 105                                 c->w = tw - 2 * BORDERPX;
 106                                 if(th > bh) {
 107                                         c->y += (i - nmaster) * th;
 108                                         c->h = th - 2 * BORDERPX;
 109                                 }
 110                                 else /* fallback if th < bh */
 111                                         c->h = wah - 2 * BORDERPX;
 112                         }
 113                         resize(c, False, TopLeft);
 114                         i++;
 115                 }
 116                 else
 117                         ban(c);
 118
 119         if(!sel || !isvisible(sel)) {
 120                 for(c = stack; c && !isvisible(c); c = c->snext);
 121                 focus(c);
 122         }
 123         restack();
 124 }
 125
 126 void
 127 focusnext(Arg *arg) {
 128         Client *c;
 129
 130         if(!sel)
 131                 return;
 132         if(!(c = getnext(sel->next)))
 133                 c = getnext(clients);
 134         if(c) {
 135                 focus(c);
 136                 restack();
 137         }
 138 }
 139
 140 void
 141 focusprev(Arg *arg) {
 142         Client *c;
 143
 144         if(!sel)
 145                 return;
 146         if(!(c = getprev(sel->prev))) {
 147                 for(c = clients; c && c->next; c = c->next);
 148                 c = getprev(c);
 149         }
 150         if(c) {
 151                 focus(c);
 152                 restack();
 153         }
 154 }
 155
 156 void
 157 incnmaster(Arg *arg) {
 158         if((arrange == dofloat)
 159         || ((int)nmaster + arg->i < 0)
 160         || (((int)nmaster + arg->i > 0) && (wah / (nmaster + arg->i) < bh)))
 161                 return;
 162         nmaster += arg->i;
 163         updatemodetext();
 164         if(sel)
 165                 arrange();
 166         else
 167                 drawstatus();
 168 }
 169
 170 Bool
 171 isvisible(Client *c) {
 172         unsigned int i;
 173
 174         for(i = 0; i < ntags; i++)
 175                 if(c->tags[i] && seltag[i])
 176                         return True;
 177         return False;
 178 }
 179
 180 void
 181 resizemaster(Arg *arg) {
 182         if(arg->i == 0)
 183                 master = MASTER;
 184         else {
 185                 if(master + arg->i > 950 || master + arg->i < 50)
 186                         return;
 187                 master += arg->i;
 188         }
 189         arrange();
 190 }
 191
 192 void
 193 restack(void) {
 194         Client *c;
 195         XEvent ev;
 196
 197         if(!sel) {
 198                 drawstatus();
 199                 return;
 200         }
 201         if(sel->isfloat || arrange == dofloat) {
 202                 XRaiseWindow(dpy, sel->win);
 203                 XRaiseWindow(dpy, sel->twin);
 204         }
 205         if(arrange != dofloat) {
 206                 if(!sel->isfloat) {
 207                         XLowerWindow(dpy, sel->twin);
 208                         XLowerWindow(dpy, sel->win);
 209                 }
 210                 for(c = nexttiled(clients); c; c = nexttiled(c->next)) {
 211                         if(c == sel)
 212                                 continue;
 213                         XLowerWindow(dpy, c->twin);
 214                         XLowerWindow(dpy, c->win);
 215                 }
 216         }
 217         drawall();
 218         XSync(dpy, False);
 219         while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
 220 }
 221
 222 void
 223 togglefloat(Arg *arg) {
 224         if (!sel || arrange == dofloat)
 225                 return;
 226         sel->isfloat = !sel->isfloat;
 227         arrange();
 228 }
 229
 230 void
 231 togglemode(Arg *arg) {
 232         arrange = (arrange == dofloat) ? dotile : dofloat;
 233         updatemodetext();
 234         if(sel)
 235                 arrange();
 236         else
 237                 drawstatus();
 238 }
 239
 240 void
 241 toggleview(Arg *arg) {
 242         unsigned int i;
 243
 244         seltag[arg->i] = !seltag[arg->i];
 245         for(i = 0; i < ntags && !seltag[i]; i++);
 246         if(i == ntags)
 247                 seltag[arg->i] = True; /* cannot toggle last view */
 248         arrange();
 249 }
 250
 251 void
 252 updatemodetext() {
 253         snprintf(mtext, sizeof mtext, arrange == dofloat ? FLOATSYMBOL : TILESYMBOL, nmaster);
 254         bmw = textw(mtext);
 255 }
 256
 257 void
 258 view(Arg *arg) {
 259         unsigned int i;
 260
 261         for(i = 0; i < ntags; i++)
 262                 seltag[i] = (arg->i == -1) ? True : False;
 263         if(arg->i >= 0 && arg->i < ntags)
 264                 seltag[arg->i] = True;
 265         arrange();
 266 }
 267
 268 void
 269 zoom(Arg *arg) {
 270         unsigned int n;
 271         Client *c;
 272
 273         if(!sel)
 274                 return;
 275         if(sel->isfloat || (arrange == dofloat)) {
 276                 togglemax(sel);
 277                 return;
 278         }
 279         for(n = 0, c = nexttiled(clients); c; c = nexttiled(c->next))
 280                 n++;
 281
 282         if((c = sel) == nexttiled(clients))
 283                 if(!(c = nexttiled(c->next)))
 284                         return;
 285         detach(c);
 286         if(clients)
 287                 clients->prev = c;
 288         c->next = clients;
 289         clients = c;
 290         focus(c);
 291         arrange();
 292 }