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 && (c->isfloat || !isvisible(c)); c = 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);
  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                         c->isbanned = False;
  60                         resize(c, True);
  61                 }
  62                 else
  63                         ban(c);
  64         }
  65         if(!sel || !isvisible(sel)) {
  66                 for(c = stack; c && !isvisible(c); c = c->snext);
  67                 focus(c);
  68         }
  69         restack();
  70 }
  71
  72 void
  73 dotile(void) {
  74         unsigned int i, n, mw, mh, tw, th;
  75         Client *c;
  76
  77         for(n = 0, c = nexttiled(clients); c; c = nexttiled(c->next))
  78                 n++;
  79         /* window geoms */
  80         mh = (n > nmaster) ? wah / nmaster : wah / (n > 0 ? n : 1);
  81         mw = (n > nmaster) ? (waw * master) / 1000 : waw;
  82         th = (n > nmaster) ? wah / (n - nmaster) : 0;
  83         tw = waw - mw;
  84
  85         for(i = 0, c = clients; c; c = c->next)
  86                 if(isvisible(c)) {
  87                         c->isbanned = False;
  88                         if(c->isfloat) {
  89                                 resize(c, True);
  90                                 continue;
  91                         }
  92                         c->ismax = False;
  93                         c->x = wax;
  94                         c->y = way;
  95                         if(i < nmaster) {
  96                                 c->y += i * mh;
  97                                 c->w = mw - 2 * BORDERPX;
  98                                 c->h = mh - 2 * BORDERPX;
  99                         }
 100                         else {  /* tile window */
 101                                 c->x += mw;
 102                                 c->w = tw - 2 * BORDERPX;
 103                                 if(th > 2 * BORDERPX) {
 104                                         c->y += (i - nmaster) * th;
 105                                         c->h = th - 2 * BORDERPX;
 106                                 }
 107                                 else /* fallback if th <= 2 * BORDERPX */
 108                                         c->h = wah - 2 * BORDERPX;
 109                         }
 110                         resize(c, False);
 111                         i++;
 112                 }
 113                 else
 114                         ban(c);
 115         if(!sel || !isvisible(sel)) {
 116                 for(c = stack; c && !isvisible(c); c = c->snext);
 117                 focus(c);
 118         }
 119         restack();
 120 }
 121
 122 void
 123 focusnext(Arg *arg) {
 124         Client *c;
 125
 126         if(!sel)
 127                 return;
 128         for(c = sel->next; c && !isvisible(c); c = c->next);
 129         if(!c)
 130                 for(c = clients; c && !isvisible(c); c = c->next);
 131         if(c) {
 132                 focus(c);
 133                 restack();
 134         }
 135 }
 136
 137 void
 138 focusprev(Arg *arg) {
 139         Client *c;
 140
 141         if(!sel)
 142                 return;
 143         for(c = sel->prev; c && !isvisible(c); c = c->prev);
 144         if(!c) {
 145                 for(c = clients; c && c->next; c = c->next);
 146                 for(; c && !isvisible(c); c = c->prev);
 147         }
 148         if(c) {
 149                 focus(c);
 150                 restack();
 151         }
 152 }
 153
 154 void
 155 incnmaster(Arg *arg) {
 156         if((arrange == dofloat) || (nmaster + arg->i < 1)
 157         || (wah / (nmaster + arg->i) <= 2 * BORDERPX))
 158                 return;
 159         nmaster += arg->i;
 160         if(sel)
 161                 arrange();
 162         else
 163                 drawstatus();
 164 }
 165
 166 Bool
 167 isvisible(Client *c) {
 168         unsigned int i;
 169
 170         for(i = 0; i < ntags; i++)
 171                 if(c->tags[i] && seltag[i])
 172                         return True;
 173         return False;
 174 }
 175
 176 void
 177 resizemaster(Arg *arg) {
 178         if(arg->i == 0)
 179                 master = MASTER;
 180         else {
 181                 if(waw * (master + arg->i) / 1000 >= waw - 2 * BORDERPX
 182                 || waw * (master + arg->i) / 1000 <= 2 * BORDERPX)
 183                         return;
 184                 master += arg->i;
 185         }
 186         arrange();
 187 }
 188
 189 void
 190 restack(void) {
 191         Client *c;
 192         XEvent ev;
 193
 194         drawstatus();
 195         if(!sel)
 196                 return;
 197         if(sel->isfloat || arrange == dofloat)
 198                 XRaiseWindow(dpy, sel->win);
 199         if(arrange != dofloat) {
 200                 if(!sel->isfloat)
 201                         XLowerWindow(dpy, sel->win);
 202                 for(c = nexttiled(clients); c; c = nexttiled(c->next)) {
 203                         if(c == sel)
 204                                 continue;
 205                         XLowerWindow(dpy, c->win);
 206                 }
 207         }
 208         XSync(dpy, False);
 209         while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
 210 }
 211
 212 void
 213 togglefloat(Arg *arg) {
 214         if(!sel || arrange == dofloat)
 215                 return;
 216         sel->isfloat = !sel->isfloat;
 217         arrange();
 218 }
 219
 220 void
 221 togglemode(Arg *arg) {
 222         arrange = (arrange == dofloat) ? dotile : dofloat;
 223         if(sel)
 224                 arrange();
 225         else
 226                 drawstatus();
 227 }
 228
 229 void
 230 toggleview(Arg *arg) {
 231         unsigned int i;
 232
 233         seltag[arg->i] = !seltag[arg->i];
 234         for(i = 0; i < ntags && !seltag[i]; i++);
 235         if(i == ntags)
 236                 seltag[arg->i] = True; /* cannot toggle last view */
 237         arrange();
 238 }
 239
 240 void
 241 view(Arg *arg) {
 242         unsigned int i;
 243
 244         for(i = 0; i < ntags; i++)
 245                 seltag[i] = (arg->i == -1) ? True : False;
 246         if(arg->i >= 0 && arg->i < ntags)
 247                 seltag[arg->i] = True;
 248         arrange();
 249 }
 250
 251 void
 252 zoom(Arg *arg) {
 253         unsigned int n;
 254         Client *c;
 255
 256         if(!sel)
 257                 return;
 258         if(sel->isfloat || (arrange == dofloat)) {
 259                 togglemax(sel);
 260                 return;
 261         }
 262         for(n = 0, c = nexttiled(clients); c; c = nexttiled(c->next))
 263                 n++;
 264
 265         if((c = sel) == nexttiled(clients))
 266                 if(!(c = nexttiled(c->next)))
 267                         return;
 268         detach(c);
 269         if(clients)
 270                 clients->prev = c;
 271         c->next = clients;
 272         clients = c;
 273         focus(c);
 274         arrange();
 275 }