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