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