view.c

   1 /*
   2  * (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>
   3  * See LICENSE file for license details.
   4  */
   5 #include "dwm.h"
   6 #include <stdio.h>
   7
   8 /* static */
   9
  10 static Client *
  11 minclient()
  12 {
  13         Client *c, *min;
  14
  15         if((clients && clients->isfloat) || arrange == dofloat)
  16                 return clients; /* don't touch floating order */
  17         for(min = c = clients; c; c = c->next)
  18                 if(c->weight < min->weight)
  19                         min = c;
  20         return min;
  21 }
  22
  23 static void
  24 reorder()
  25 {
  26         Client *c, *newclients, *tail;
  27
  28         newclients = tail = NULL;
  29         while((c = minclient())) {
  30                 detach(c);
  31                 if(tail) {
  32                         c->prev = tail;
  33                         tail->next = c;
  34                         tail = c;
  35                 }
  36                 else
  37                         tail = newclients = c;
  38         }
  39         clients = newclients;
  40 }
  41
  42 static Client *
  43 nexttiled(Client *c)
  44 {
  45         for(c = getnext(c); c && c->isfloat; c = getnext(c->next));
  46         return c;
  47 }
  48
  49 /* extern */
  50
  51 void (*arrange)(Arg *) = DEFMODE;
  52
  53 void
  54 detach(Client *c)
  55 {
  56         if(c->prev)
  57                 c->prev->next = c->next;
  58         if(c->next)
  59                 c->next->prev = c->prev;
  60         if(c == clients)
  61                 clients = c->next;
  62         c->next = c->prev = NULL;
  63 }
  64
  65 void
  66 dofloat(Arg *arg)
  67 {
  68         Client *c;
  69
  70         maximized = False;
  71
  72         for(c = clients; c; c = c->next) {
  73                 if(isvisible(c)) {
  74                         resize(c, True, TopLeft);
  75                 }
  76                 else
  77                         ban(c);
  78         }
  79         if(!sel || !isvisible(sel))
  80                 focus(getnext(clients));
  81         restack();
  82 }
  83
  84 void
  85 dotile(Arg *arg)
  86 {
  87         int h, i, n, w;
  88         Client *c;
  89
  90         maximized = False;
  91
  92         w = sw - mw;
  93         for(n = 0, c = clients; c; c = c->next)
  94                 if(isvisible(c) && !c->isfloat)
  95                         n++;
  96
  97         if(n > 1)
  98                 h = (sh - bh) / (n - 1);
  99         else
 100                 h = sh - bh;
 101
 102         for(i = 0, c = clients; c; c = c->next) {
 103                 if(isvisible(c)) {
 104                         if(c->isfloat) {
 105                                 resize(c, True, TopLeft);
 106                                 continue;
 107                         }
 108                         if(n == 1) {
 109                                 c->x = sx;
 110                                 c->y = sy + bh;
 111                                 c->w = sw - 2;
 112                                 c->h = sh - 2 - bh;
 113                         }
 114                         else if(i == 0) {
 115                                 c->x = sx;
 116                                 c->y = sy + bh;
 117                                 c->w = mw - 2;
 118                                 c->h = sh - 2 - bh;
 119                         }
 120                         else if(h > bh) {
 121                                 c->x = sx + mw;
 122                                 c->y = sy + (i - 1) * h + bh;
 123                                 c->w = w - 2;
 124                                 if(i + 1 == n)
 125                                         c->h = sh - c->y - 2;
 126                                 else
 127                                         c->h = h - 2;
 128                         }
 129                         else { /* fallback if h < bh */
 130                                 c->x = sx + mw;
 131                                 c->y = sy + bh;
 132                                 c->w = w - 2;
 133                                 c->h = sh - 2 - bh;
 134                         }
 135                         resize(c, False, TopLeft);
 136                         i++;
 137                 }
 138                 else
 139                         ban(c);
 140         }
 141         if(!sel || !isvisible(sel))
 142                 focus(getnext(clients));
 143         restack();
 144 }
 145
 146 void
 147 focusnext(Arg *arg)
 148 {
 149         Client *c;
 150
 151         if(!sel)
 152                 return;
 153
 154         if(!(c = getnext(sel->next)))
 155                 c = getnext(clients);
 156         if(c) {
 157                 focus(c);
 158                 restack();
 159         }
 160 }
 161
 162 void
 163 focusprev(Arg *arg)
 164 {
 165         Client *c;
 166
 167         if(!sel)
 168                 return;
 169
 170         if(!(c = getprev(sel->prev))) {
 171                 for(c = clients; c && c->next; c = c->next);
 172                 c = getprev(c);
 173         }
 174         if(c) {
 175                 focus(c);
 176                 restack();
 177         }
 178 }
 179
 180 Bool
 181 isvisible(Client *c)
 182 {
 183         unsigned int i;
 184
 185         for(i = 0; i < ntags; i++)
 186                 if(c->tags[i] && seltag[i])
 187                         return True;
 188         return False;
 189 }
 190
 191 void
 192 resizecol(Arg *arg)
 193 {
 194         unsigned int n;
 195         Client *c;
 196
 197         for(n = 0, c = clients; c; c = c->next)
 198                 if(isvisible(c) && !c->isfloat)
 199                         n++;
 200         if(!sel || sel->isfloat || n < 2 || (arrange != dotile) || maximized)
 201                 return;
 202
 203         if(sel == getnext(clients)) {
 204                 if(mw + arg->i > sw - 100 || mw + arg->i < 100)
 205                         return;
 206                 mw += arg->i;
 207         }
 208         else {
 209                 if(mw - arg->i > sw - 100 || mw - arg->i < 100)
 210                         return;
 211                 mw -= arg->i;
 212         }
 213         arrange(NULL);
 214 }
 215
 216 void
 217 restack()
 218 {
 219         Client *c;
 220         XEvent ev;
 221
 222         if(!sel) {
 223                 drawstatus();
 224                 return;
 225         }
 226         if(sel->isfloat || arrange == dofloat) {
 227                 XRaiseWindow(dpy, sel->win);
 228                 XRaiseWindow(dpy, sel->twin);
 229         }
 230         if(arrange != dofloat)
 231                 for(c = nexttiled(clients); c; c = nexttiled(c->next)) {
 232                         XLowerWindow(dpy, c->twin);
 233                         XLowerWindow(dpy, c->win);
 234                 }
 235         drawall();
 236         XSync(dpy, False);
 237         while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
 238 }
 239
 240 void
 241 togglemode(Arg *arg)
 242 {
 243         arrange = (arrange == dofloat) ? dotile : dofloat;
 244         if(sel)
 245                 arrange(NULL);
 246         else
 247                 drawstatus();
 248 }
 249
 250 void
 251 toggleview(Arg *arg)
 252 {
 253         unsigned int i;
 254
 255         seltag[arg->i] = !seltag[arg->i];
 256         for(i = 0; i < ntags && !seltag[i]; i++);
 257         if(i == ntags)
 258                 seltag[arg->i] = True; /* cannot toggle last view */
 259         reorder();
 260         arrange(NULL);
 261 }
 262
 263 void
 264 view(Arg *arg)
 265 {
 266         unsigned int i;
 267
 268         for(i = 0; i < ntags; i++)
 269                 seltag[i] = False;
 270         seltag[arg->i] = True;
 271         reorder();
 272         arrange(NULL);
 273 }
 274
 275 void
 276 viewall(Arg *arg)
 277 {
 278         unsigned int i;
 279
 280         for(i = 0; i < ntags; i++)
 281                 seltag[i] = True;
 282         reorder();
 283         arrange(NULL);
 284 }
 285
 286 void
 287 zoom(Arg *arg)
 288 {
 289         unsigned int n;
 290         Client *c;
 291
 292         for(n = 0, c = clients; c; c = c->next)
 293                 if(isvisible(c) && !c->isfloat)
 294                         n++;
 295         if(!sel || sel->isfloat || n < 2 || (arrange != dotile) || maximized)
 296                 return;
 297
 298         if((c = sel) == nexttiled(clients))
 299                 if(!(c = nexttiled(c->next)))
 300                         return;
 301         detach(c);
 302         if(clients)
 303                 clients->prev = c;
 304         c->next = clients;
 305         clients = c;
 306         focus(c);
 307         arrange(NULL);
 308 }