layout.c

   1 /* See LICENSE file for copyright and license details. */
   2 #include "dwm.h"
   3 #include <stdlib.h>
   4 #include <string.h>
   5 #include <X11/Xatom.h>
   6 #include <X11/Xutil.h>
   7
   8 /* static */
   9
  10 typedef struct {
  11         const char *symbol;
  12         void (*arrange)(void);
  13 } Layout;
  14
  15 unsigned int blw = 0;
  16 static char prop[128];
  17 static unsigned int ltidx = 0; /* default */
  18
  19 static void
  20 floating(void) { /* default floating layout */
  21         Client *c;
  22
  23         for(c = clients; c; c = c->next)
  24                 if(isvisible(c))
  25                         resize(c, c->x, c->y, c->w, c->h, True);
  26 }
  27
  28 static unsigned int nlayouts = 0;
  29
  30 LAYOUTS
  31
  32 /* extern */
  33
  34 void
  35 arrange(void) {
  36         Client *c;
  37
  38         for(c = clients; c; c = c->next)
  39                 if(isvisible(c))
  40                         unban(c);
  41                 else
  42                         ban(c);
  43         layouts[ltidx].arrange();
  44         focus(NULL);
  45         restack();
  46 }
  47
  48 void
  49 focusnext(const char *arg) {
  50         Client *c;
  51
  52         if(!sel)
  53                 return;
  54         for(c = sel->next; c && !isvisible(c); c = c->next);
  55         if(!c)
  56                 for(c = clients; c && !isvisible(c); c = c->next);
  57         if(c) {
  58                 focus(c);
  59                 restack();
  60         }
  61 }
  62
  63 void
  64 focusprev(const char *arg) {
  65         Client *c;
  66
  67         if(!sel)
  68                 return;
  69         for(c = sel->prev; c && !isvisible(c); c = c->prev);
  70         if(!c) {
  71                 for(c = clients; c && c->next; c = c->next);
  72                 for(; c && !isvisible(c); c = c->prev);
  73         }
  74         if(c) {
  75                 focus(c);
  76                 restack();
  77         }
  78 }
  79
  80 const char *
  81 getsymbol(void)
  82 {
  83         return layouts[ltidx].symbol;
  84 }
  85
  86 Bool
  87 isfloating(void) {
  88         return layouts[ltidx].arrange == floating;
  89 }
  90
  91 Bool
  92 isarrange(void (*func)())
  93 {
  94         return func == layouts[ltidx].arrange;
  95 }
  96
  97 void
  98 initlayouts(void) {
  99         unsigned int i, w;
 100
 101         nlayouts = sizeof layouts / sizeof layouts[0];
 102         for(blw = i = 0; i < nlayouts; i++) {
 103                 w = textw(layouts[i].symbol);
 104                 if(w > blw)
 105                         blw = w;
 106         }
 107 }
 108
 109 void
 110 loaddwmprops(void) {
 111         unsigned int i;
 112
 113         if(gettextprop(root, dwmprops, prop, sizeof prop)) {
 114                 for(i = 0; i < ntags && i < sizeof prop - 1 && prop[i] != '\0'; i++)
 115                         seltags[i] = prop[i] == '1';
 116                 if(i < sizeof prop - 1 && prop[i] != '\0') {
 117                         if(prop[i] < nlayouts)
 118                                 ltidx = prop[i];
 119                 }
 120         }
 121 }
 122
 123 Client *
 124 nexttiled(Client *c) {
 125         for(; c && (c->isfloating || !isvisible(c)); c = c->next);
 126         return c;
 127 }
 128
 129 void
 130 restack(void) {
 131         Client *c;
 132         XEvent ev;
 133         XWindowChanges wc;
 134
 135         drawstatus();
 136         if(!sel)
 137                 return;
 138         if(sel->isfloating || isfloating())
 139                 XRaiseWindow(dpy, sel->win);
 140         if(!isfloating()) {
 141                 wc.stack_mode = Below;
 142                 wc.sibling = barwin;
 143                 if(!sel->isfloating) {
 144                         XConfigureWindow(dpy, sel->win, CWSibling | CWStackMode, &wc);
 145                         wc.sibling = sel->win;
 146                 }
 147                 for(c = nexttiled(clients); c; c = nexttiled(c->next)) {
 148                         if(c == sel)
 149                                 continue;
 150                         XConfigureWindow(dpy, c->win, CWSibling | CWStackMode, &wc);
 151                         wc.sibling = c->win;
 152                 }
 153         }
 154         XSync(dpy, False);
 155         while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
 156 }
 157
 158 void
 159 savedwmprops(void) {
 160         unsigned int i;
 161
 162         for(i = 0; i < ntags && i < sizeof prop - 1; i++)
 163                 prop[i] = seltags[i] ? '1' : '0';
 164         if(i < sizeof prop - 1)
 165                 prop[i++] = (char)ltidx;
 166         prop[i] = '\0';
 167         XChangeProperty(dpy, root, dwmprops, XA_STRING, 8,
 168                         PropModeReplace, (unsigned char *)prop, i);
 169 }
 170
 171 void
 172 setlayout(const char *arg) {
 173         int i;
 174
 175         if(!arg) {
 176                 if(++ltidx == nlayouts)
 177                         ltidx = 0;;
 178         }
 179         else {
 180                 i = atoi(arg);
 181                 if(i < 0 || i >= nlayouts)
 182                         return;
 183                 ltidx = i;
 184         }
 185         if(sel)
 186                 arrange();
 187         else
 188                 drawstatus();
 189         savedwmprops();
 190 }
 191
 192 void
 193 togglebar(const char *arg) {
 194         if(bpos == BarOff)
 195                 bpos = (BARPOS == BarOff) ? BarTop : BARPOS;
 196         else
 197                 bpos = BarOff;
 198         updatebarpos();
 199         arrange();
 200 }
 201
 202 void
 203 togglemax(const char *arg) {
 204         XEvent ev;
 205
 206         if(!sel || (!isfloating() && !sel->isfloating) || sel->isfixed)
 207                 return;
 208         if((sel->ismax = !sel->ismax)) {
 209                 sel->rx = sel->x;
 210                 sel->ry = sel->y;
 211                 sel->rw = sel->w;
 212                 sel->rh = sel->h;
 213                 resize(sel, wax, way, waw - 2 * sel->border, wah - 2 * sel->border, True);
 214         }
 215         else
 216                 resize(sel, sel->rx, sel->ry, sel->rw, sel->rh, True);
 217         drawstatus();
 218         while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));
 219 }