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);
  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         if(!(c = getnext(sel->next)))
 129                 c = getnext(clients);
 130         if(c) {
 131                 focus(c);
 132                 restack();
 133         }
 134 }
 135
 136 void
 137 focusprev(Arg *arg) {
 138         Client *c;
 139
 140         if(!sel)
 141                 return;
 142         if(!(c = getprev(sel->prev))) {
 143                 for(c = clients; c && c->next; c = c->next);
 144                 c = getprev(c);
 145         }
 146         if(c) {
 147                 focus(c);
 148                 restack();
 149         }
 150 }
 151
 152 void
 153 incnmaster(Arg *arg) {
 154         if((arrange == dofloat) || (nmaster + arg->i < 1)
 155         || (wah / (nmaster + arg->i) <= 2 * BORDERPX))
 156                 return;
 157         nmaster += arg->i;
 158         if(sel)
 159                 arrange();
 160         else
 161                 drawstatus();
 162 }
 163
 164 Bool
 165 isvisible(Client *c) {
 166         unsigned int i;
 167
 168         for(i = 0; i < ntags; i++)
 169                 if(c->tags[i] && seltag[i])
 170                         return True;
 171         return False;
 172 }
 173
 174 void
 175 resizemaster(Arg *arg) {
 176         if(arg->i == 0)
 177                 master = MASTER;
 178         else {
 179                 if(waw * (master + arg->i) / 1000 >= waw - 2 * BORDERPX
 180                 || waw * (master + arg->i) / 1000 <= 2 * BORDERPX)
 181                         return;
 182                 master += arg->i;
 183         }
 184         arrange();
 185 }
 186
 187 void
 188 restack(void) {
 189         Client *c;
 190         XEvent ev;
 191
 192         drawstatus();
 193         if(!sel)
 194                 return;
 195         if(sel->isfloat || arrange == dofloat)
 196                 XRaiseWindow(dpy, sel->win);
 197         if(arrange != dofloat) {
 198                 if(!sel->isfloat)
 199                         XLowerWindow(dpy, sel->win);
 200                 for(c = nexttiled(clients); c; c = nexttiled(c->next)) {
 201                         if(c == sel)
 202                                 continue;
 203                         XLowerWindow(dpy, c->win);
 204                 }
 205         }
 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 }