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;
  24                 c->ry = c->y;
  25                 c->rw = c->w;
  26                 c->rh = c->h;
  27                 resize(c, wax, way, waw - 2 * BORDERPX, wah - 2 * BORDERPX, True);
  28         }
  29         else
  30                 resize(c, c->rx, c->ry, c->rw, c->rh, True);
  31         while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
  32 }
  33
  34 /* extern */
  35
  36 void (*arrange)(void) = DEFMODE;
  37
  38 void
  39 detach(Client *c) {
  40         if(c->prev)
  41                 c->prev->next = c->next;
  42         if(c->next)
  43                 c->next->prev = c->prev;
  44         if(c == clients)
  45                 clients = c->next;
  46         c->next = c->prev = NULL;
  47 }
  48
  49 void
  50 dofloat(void) {
  51         Client *c;
  52
  53         for(c = clients; c; c = c->next) {
  54                 if(isvisible(c)) {
  55                         if(c->isbanned)
  56                                 XMoveWindow(dpy, c->win, c->x, c->y);
  57                         c->isbanned = False;
  58                         resize(c, c->x, c->y, c->w, c->h, True);
  59                 }
  60                 else {
  61                         c->isbanned = True;
  62                         XMoveWindow(dpy, c->win, c->x + 2 * sw, c->y);
  63                 }
  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, nx, ny, nw, nh, 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                         if(c->isbanned)
  88                                 XMoveWindow(dpy, c->win, c->x, c->y);
  89                         c->isbanned = False;
  90                         if(c->isfloat)
  91                                 continue;
  92                         c->ismax = False;
  93                         nx = wax;
  94                         ny = way;
  95                         if(i < nmaster) {
  96                                 ny += i * mh;
  97                                 nw = mw - 2 * BORDERPX;
  98                                 nh = mh - 2 * BORDERPX;
  99                         }
 100                         else {  /* tile window */
 101                                 nx += mw;
 102                                 nw = tw - 2 * BORDERPX;
 103                                 if(th > 2 * BORDERPX) {
 104                                         ny += (i - nmaster) * th;
 105                                         nh = th - 2 * BORDERPX;
 106                                 }
 107                                 else /* fallback if th <= 2 * BORDERPX */
 108                                         nh = wah - 2 * BORDERPX;
 109                         }
 110                         resize(c, nx, ny, nw, nh, False);
 111                         i++;
 112                 }
 113                 else {
 114                         c->isbanned = True;
 115                         XMoveWindow(dpy, c->win, c->x + 2 * sw, c->y);
 116                 }
 117         if(!sel || !isvisible(sel)) {
 118                 for(c = stack; c && !isvisible(c); c = c->snext);
 119                 focus(c);
 120         }
 121         restack();
 122 }
 123
 124 void
 125 focusnext(Arg *arg) {
 126         Client *c;
 127
 128         if(!sel)
 129                 return;
 130         for(c = sel->next; c && !isvisible(c); c = c->next);
 131         if(!c)
 132                 for(c = clients; c && !isvisible(c); c = c->next);
 133         if(c) {
 134                 focus(c);
 135                 restack();
 136         }
 137 }
 138
 139 void
 140 focusprev(Arg *arg) {
 141         Client *c;
 142
 143         if(!sel)
 144                 return;
 145         for(c = sel->prev; c && !isvisible(c); c = c->prev);
 146         if(!c) {
 147                 for(c = clients; c && c->next; c = c->next);
 148                 for(; c && !isvisible(c); c = c->prev);
 149         }
 150         if(c) {
 151                 focus(c);
 152                 restack();
 153         }
 154 }
 155
 156 void
 157 incnmaster(Arg *arg) {
 158         if((arrange == dofloat) || (nmaster + arg->i < 1)
 159         || (wah / (nmaster + arg->i) <= 2 * BORDERPX))
 160                 return;
 161         nmaster += arg->i;
 162         if(sel)
 163                 arrange();
 164         else
 165                 drawstatus();
 166 }
 167
 168 Bool
 169 isvisible(Client *c) {
 170         unsigned int i;
 171
 172         for(i = 0; i < ntags; i++)
 173                 if(c->tags[i] && seltag[i])
 174                         return True;
 175         return False;
 176 }
 177
 178 void
 179 resizemaster(Arg *arg) {
 180         if(arg->i == 0)
 181                 master = MASTER;
 182         else {
 183                 if(waw * (master + arg->i) / 1000 >= waw - 2 * BORDERPX
 184                 || waw * (master + arg->i) / 1000 <= 2 * BORDERPX)
 185                         return;
 186                 master += arg->i;
 187         }
 188         arrange();
 189 }
 190
 191 void
 192 restack(void) {
 193         Client *c;
 194         XEvent ev;
 195
 196         drawstatus();
 197         if(!sel)
 198                 return;
 199         if(sel->isfloat || arrange == dofloat)
 200                 XRaiseWindow(dpy, sel->win);
 201         if(arrange != dofloat) {
 202                 if(!sel->isfloat)
 203                         XLowerWindow(dpy, sel->win);
 204                 for(c = nexttiled(clients); c; c = nexttiled(c->next)) {
 205                         if(c == sel)
 206                                 continue;
 207                         XLowerWindow(dpy, c->win);
 208                 }
 209         }
 210         XSync(dpy, False);
 211         while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
 212 }
 213
 214 void
 215 togglefloat(Arg *arg) {
 216         if(!sel || arrange == dofloat)
 217                 return;
 218         sel->isfloat = !sel->isfloat;
 219         arrange();
 220 }
 221
 222 void
 223 togglemode(Arg *arg) {
 224         arrange = (arrange == dofloat) ? dotile : dofloat;
 225         if(sel)
 226                 arrange();
 227         else
 228                 drawstatus();
 229 }
 230
 231 void
 232 toggleview(Arg *arg) {
 233         unsigned int i;
 234
 235         seltag[arg->i] = !seltag[arg->i];
 236         for(i = 0; i < ntags && !seltag[i]; i++);
 237         if(i == ntags)
 238                 seltag[arg->i] = True; /* cannot toggle last view */
 239         arrange();
 240 }
 241
 242 void
 243 view(Arg *arg) {
 244         unsigned int i;
 245
 246         for(i = 0; i < ntags; i++)
 247                 seltag[i] = (arg->i == -1) ? True : False;
 248         if(arg->i >= 0 && arg->i < ntags)
 249                 seltag[arg->i] = True;
 250         arrange();
 251 }
 252
 253 void
 254 zoom(Arg *arg) {
 255         unsigned int n;
 256         Client *c;
 257
 258         if(!sel)
 259                 return;
 260         if(sel->isfloat || (arrange == dofloat)) {
 261                 togglemax(sel);
 262                 return;
 263         }
 264         for(n = 0, c = nexttiled(clients); c; c = nexttiled(c->next))
 265                 n++;
 266
 267         if((c = sel) == nexttiled(clients))
 268                 if(!(c = nexttiled(c->next)))
 269                         return;
 270         detach(c);
 271         if(clients)
 272                 clients->prev = c;
 273         c->next = clients;
 274         clients = c;
 275         focus(c);
 276         arrange();
 277 }