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(arrange != dotile)
 181                 return;
 182         if(arg->i == 0)
 183                 master = MASTER;
 184         else {
 185                 if(waw * (master + arg->i) / 1000 >= waw - 2 * BORDERPX
 186                 || waw * (master + arg->i) / 1000 <= 2 * BORDERPX)
 187                         return;
 188                 master += arg->i;
 189         }
 190         arrange();
 191 }
 192
 193 void
 194 restack(void) {
 195         Client *c;
 196         XEvent ev;
 197
 198         drawstatus();
 199         if(!sel)
 200                 return;
 201         if(sel->isfloat || arrange == dofloat)
 202                 XRaiseWindow(dpy, sel->win);
 203         if(arrange != dofloat) {
 204                 if(!sel->isfloat)
 205                         XLowerWindow(dpy, sel->win);
 206                 for(c = nexttiled(clients); c; c = nexttiled(c->next)) {
 207                         if(c == sel)
 208                                 continue;
 209                         XLowerWindow(dpy, c->win);
 210                 }
 211         }
 212         XSync(dpy, False);
 213         while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
 214 }
 215
 216 void
 217 togglefloat(Arg *arg) {
 218         if(!sel || arrange == dofloat)
 219                 return;
 220         sel->isfloat = !sel->isfloat;
 221         arrange();
 222 }
 223
 224 void
 225 togglemode(Arg *arg) {
 226         arrange = (arrange == dofloat) ? dotile : dofloat;
 227         if(sel)
 228                 arrange();
 229         else
 230                 drawstatus();
 231 }
 232
 233 void
 234 toggleview(Arg *arg) {
 235         unsigned int i;
 236
 237         seltag[arg->i] = !seltag[arg->i];
 238         for(i = 0; i < ntags && !seltag[i]; i++);
 239         if(i == ntags)
 240                 seltag[arg->i] = True; /* cannot toggle last view */
 241         arrange();
 242 }
 243
 244 void
 245 view(Arg *arg) {
 246         unsigned int i;
 247
 248         for(i = 0; i < ntags; i++)
 249                 seltag[i] = (arg->i == -1) ? True : False;
 250         if(arg->i >= 0 && arg->i < ntags)
 251                 seltag[arg->i] = True;
 252         arrange();
 253 }
 254
 255 void
 256 zoom(Arg *arg) {
 257         unsigned int n;
 258         Client *c;
 259
 260         if(!sel)
 261                 return;
 262         if(sel->isfloat || (arrange == dofloat)) {
 263                 togglemax(sel);
 264                 return;
 265         }
 266         for(n = 0, c = nexttiled(clients); c; c = nexttiled(c->next))
 267                 n++;
 268
 269         if((c = sel) == nexttiled(clients))
 270                 if(!(c = nexttiled(c->next)))
 271                         return;
 272         detach(c);
 273         if(clients)
 274                 clients->prev = c;
 275         c->next = clients;
 276         clients = c;
 277         focus(c);
 278         arrange();
 279 }