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, TopLeft);
  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, TopLeft);
  60                 }
  61                 else
  62                         ban(c);
  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         mw = (n > nmaster) ? (waw * master) / 1000 : waw;
  80         mh = (n > nmaster) ? wah / nmaster : wah / (n > 0 ? n : 1);
  81         tw = waw - mw;
  82         th = (n > nmaster) ? wah / (n - nmaster) : 0;
  83
  84         for(i = 0, c = clients; c; c = c->next)
  85                 if(isvisible(c)) {
  86                         if(c->isfloat) {
  87                                 resize(c, True, TopLeft);
  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 > bh) {
 102                                         c->y += (i - nmaster) * th;
 103                                         c->h = th - 2 * BORDERPX;
 104                                 }
 105                                 else /* fallback if th < bh */
 106                                         c->h = wah - 2 * BORDERPX;
 107                         }
 108                         resize(c, False, TopLeft);
 109                         i++;
 110                 }
 111                 else
 112                         ban(c);
 113
 114         if(!sel || !isvisible(sel)) {
 115                 for(c = stack; c && !isvisible(c); c = c->snext);
 116                 focus(c);
 117         }
 118         restack();
 119 }
 120
 121 void
 122 focusnext(Arg *arg) {
 123         Client *c;
 124
 125         if(!sel)
 126                 return;
 127         if(!(c = getnext(sel->next)))
 128                 c = getnext(clients);
 129         if(c) {
 130                 focus(c);
 131                 restack();
 132         }
 133 }
 134
 135 void
 136 focusprev(Arg *arg) {
 137         Client *c;
 138
 139         if(!sel)
 140                 return;
 141         if(!(c = getprev(sel->prev))) {
 142                 for(c = clients; c && c->next; c = c->next);
 143                 c = getprev(c);
 144         }
 145         if(c) {
 146                 focus(c);
 147                 restack();
 148         }
 149 }
 150
 151 void
 152 incnmaster(Arg *arg) {
 153         if((arrange == dofloat) || (nmaster + arg->i < 1) || (wah / (nmaster + arg->i) < bh))
 154                 return;
 155         nmaster += arg->i;
 156         snprintf(mtext, sizeof mtext, arrange == dofloat ? FLOATSYMBOL : TILESYMBOL, nmaster);
 157         bmw = textw(mtext);
 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(master + arg->i > 950 || master + arg->i < 50)
 180                         return;
 181                 master += arg->i;
 182         }
 183         arrange();
 184 }
 185
 186 void
 187 restack(void) {
 188         Client *c;
 189         XEvent ev;
 190
 191         if(!sel) {
 192                 drawstatus();
 193                 return;
 194         }
 195         if(sel->isfloat || arrange == dofloat) {
 196                 XRaiseWindow(dpy, sel->win);
 197                 XRaiseWindow(dpy, sel->twin);
 198         }
 199         if(arrange != dofloat) {
 200                 if(!sel->isfloat) {
 201                         XLowerWindow(dpy, sel->twin);
 202                         XLowerWindow(dpy, sel->win);
 203                 }
 204                 for(c = nexttiled(clients); c; c = nexttiled(c->next)) {
 205                         if(c == sel)
 206                                 continue;
 207                         XLowerWindow(dpy, c->twin);
 208                         XLowerWindow(dpy, c->win);
 209                 }
 210         }
 211         drawall();
 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         snprintf(mtext, sizeof mtext, arrange == dofloat ? FLOATSYMBOL : TILESYMBOL, nmaster);
 228         bmw = textw(mtext);
 229         if(sel)
 230                 arrange();
 231         else
 232                 drawstatus();
 233 }
 234
 235 void
 236 toggleview(Arg *arg) {
 237         unsigned int i;
 238
 239         seltag[arg->i] = !seltag[arg->i];
 240         for(i = 0; i < ntags && !seltag[i]; i++);
 241         if(i == ntags)
 242                 seltag[arg->i] = True; /* cannot toggle last view */
 243         arrange();
 244 }
 245
 246 void
 247 view(Arg *arg) {
 248         unsigned int i;
 249
 250         for(i = 0; i < ntags; i++)
 251                 seltag[i] = (arg->i == -1) ? True : False;
 252         if(arg->i >= 0 && arg->i < ntags)
 253                 seltag[arg->i] = True;
 254         arrange();
 255 }
 256
 257 void
 258 zoom(Arg *arg) {
 259         unsigned int n;
 260         Client *c;
 261
 262         if(!sel)
 263                 return;
 264         if(sel->isfloat || (arrange == dofloat)) {
 265                 togglemax(sel);
 266                 return;
 267         }
 268         for(n = 0, c = nexttiled(clients); c; c = nexttiled(c->next))
 269                 n++;
 270
 271         if((c = sel) == nexttiled(clients))
 272                 if(!(c = nexttiled(c->next)))
 273                         return;
 274         detach(c);
 275         if(clients)
 276                 clients->prev = c;
 277         c->next = clients;
 278         clients = c;
 279         focus(c);
 280         arrange();
 281 }