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                 }
  59                 else {
  60                         c->isbanned = True;
  61                         XMoveWindow(dpy, c->win, c->x + 2 * sw, c->y);
  62                 }
  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, nx, ny, nw, nh, mw, mh, tw, th;
  74         Client *c;
  75
  76         for(n = 0, c = nexttiled(clients); c; c = nexttiled(c->next))
  77                 n++;
  78         /* window geoms */
  79         mh = (n > nmaster) ? wah / nmaster : wah / (n > 0 ? n : 1);
  80         mw = (n > nmaster) ? (waw * master) / 1000 : waw;
  81         th = (n > nmaster) ? wah / (n - nmaster) : 0;
  82         tw = waw - mw;
  83
  84         for(i = 0, c = clients; c; c = c->next)
  85                 if(isvisible(c)) {
  86                         if(c->isbanned)
  87                                 XMoveWindow(dpy, c->win, c->x, c->y);
  88                         c->isbanned = False;
  89                         if(c->isfloat)
  90                                 continue;
  91                         c->ismax = False;
  92                         nx = wax;
  93                         ny = way;
  94                         if(i < nmaster) {
  95                                 ny += i * mh;
  96                                 nw = mw - 2 * BORDERPX;
  97                                 nh = mh - 2 * BORDERPX;
  98                         }
  99                         else {  /* tile window */
 100                                 nx += mw;
 101                                 nw = tw - 2 * BORDERPX;
 102                                 if(th > 2 * BORDERPX) {
 103                                         ny += (i - nmaster) * th;
 104                                         nh = th - 2 * BORDERPX;
 105                                 }
 106                                 else /* fallback if th <= 2 * BORDERPX */
 107                                         nh = wah - 2 * BORDERPX;
 108                         }
 109                         resize(c, nx, ny, nw, nh, False);
 110                         i++;
 111                 }
 112                 else {
 113                         c->isbanned = True;
 114                         XMoveWindow(dpy, c->win, c->x + 2 * sw, c->y);
 115                 }
 116         if(!sel || !isvisible(sel)) {
 117                 for(c = stack; c && !isvisible(c); c = c->snext);
 118                 focus(c);
 119         }
 120         restack();
 121 }
 122
 123 void
 124 focusnext(Arg *arg) {
 125         Client *c;
 126
 127         if(!sel)
 128                 return;
 129         for(c = sel->next; c && !isvisible(c); c = c->next);
 130         if(!c)
 131                 for(c = clients; c && !isvisible(c); c = c->next);
 132         if(c) {
 133                 focus(c);
 134                 restack();
 135         }
 136 }
 137
 138 void
 139 focusprev(Arg *arg) {
 140         Client *c;
 141
 142         if(!sel)
 143                 return;
 144         for(c = sel->prev; c && !isvisible(c); c = c->prev);
 145         if(!c) {
 146                 for(c = clients; c && c->next; c = c->next);
 147                 for(; c && !isvisible(c); c = c->prev);
 148         }
 149         if(c) {
 150                 focus(c);
 151                 restack();
 152         }
 153 }
 154
 155 void
 156 incnmaster(Arg *arg) {
 157         if((arrange == dofloat) || (nmaster + arg->i < 1)
 158         || (wah / (nmaster + arg->i) <= 2 * BORDERPX))
 159                 return;
 160         nmaster += arg->i;
 161         if(sel)
 162                 arrange();
 163         else
 164                 drawstatus();
 165 }
 166
 167 Bool
 168 isvisible(Client *c) {
 169         unsigned int i;
 170
 171         for(i = 0; i < ntags; i++)
 172                 if(c->tags[i] && seltag[i])
 173                         return True;
 174         return False;
 175 }
 176
 177 void
 178 resizemaster(Arg *arg) {
 179         if(arg->i == 0)
 180                 master = MASTER;
 181         else {
 182                 if(waw * (master + arg->i) / 1000 >= waw - 2 * BORDERPX
 183                 || waw * (master + arg->i) / 1000 <= 2 * BORDERPX)
 184                         return;
 185                 master += arg->i;
 186         }
 187         arrange();
 188 }
 189
 190 void
 191 restack(void) {
 192         Client *c;
 193         XEvent ev;
 194
 195         drawstatus();
 196         if(!sel)
 197                 return;
 198         if(sel->isfloat || arrange == dofloat)
 199                 XRaiseWindow(dpy, sel->win);
 200         if(arrange != dofloat) {
 201                 if(!sel->isfloat)
 202                         XLowerWindow(dpy, sel->win);
 203                 for(c = nexttiled(clients); c; c = nexttiled(c->next)) {
 204                         if(c == sel)
 205                                 continue;
 206                         XLowerWindow(dpy, c->win);
 207                 }
 208         }
 209         XSync(dpy, False);
 210         while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
 211 }
 212
 213 void
 214 togglefloat(Arg *arg) {
 215         if(!sel || arrange == dofloat)
 216                 return;
 217         sel->isfloat = !sel->isfloat;
 218         arrange();
 219 }
 220
 221 void
 222 togglemode(Arg *arg) {
 223         arrange = (arrange == dofloat) ? dotile : dofloat;
 224         if(sel)
 225                 arrange();
 226         else
 227                 drawstatus();
 228 }
 229
 230 void
 231 toggleview(Arg *arg) {
 232         unsigned int i;
 233
 234         seltag[arg->i] = !seltag[arg->i];
 235         for(i = 0; i < ntags && !seltag[i]; i++);
 236         if(i == ntags)
 237                 seltag[arg->i] = True; /* cannot toggle last view */
 238         arrange();
 239 }
 240
 241 void
 242 view(Arg *arg) {
 243         unsigned int i;
 244
 245         for(i = 0; i < ntags; i++)
 246                 seltag[i] = (arg->i == -1) ? True : False;
 247         if(arg->i >= 0 && arg->i < ntags)
 248                 seltag[arg->i] = True;
 249         arrange();
 250 }
 251
 252 void
 253 zoom(Arg *arg) {
 254         unsigned int n;
 255         Client *c;
 256
 257         if(!sel)
 258                 return;
 259         if(sel->isfloat || (arrange == dofloat)) {
 260                 togglemax(sel);
 261                 return;
 262         }
 263         for(n = 0, c = nexttiled(clients); c; c = nexttiled(c->next))
 264                 n++;
 265
 266         if((c = sel) == nexttiled(clients))
 267                 if(!(c = nexttiled(c->next)))
 268                         return;
 269         detach(c);
 270         if(clients)
 271                 clients->prev = c;
 272         c->next = clients;
 273         clients = c;
 274         focus(c);
 275         arrange();
 276 }