-d 3 option for excluding current desktop

related: #55

doc/alttab.1

@@ -63,7 +63,7 @@ resource: alttab\.desktops
 default: \fI0\fR
 .
 .IP
-Show windows belonging to desktops (workspaces, groups)\. \fINUMBER\fR must be 0, 1 or 2:
+Show windows belonging to desktops (workspaces, groups)\. \fINUMBER\fR must be between 0 and 3:
 .
 .IP
 \fI0\fR: Current desktop\.
@@ -83,6 +83,9 @@ Doesn\'t work in ratpoison\.
 .IP
 In various EWMH WM this desktop may be designed hidden or containing sticky windows\. In i3, it\'s "scratchpad"\.
 .
+.IP
+\fI3\fR: All desktops, excluding current one\.
+.
 .TP
 \fB\-sc\fR \fINUMBER\fR
 resource: alttab\.screens

doc/alttab.1.ronn

@@ -73,7 +73,7 @@ Most command line options have corresponding X resource, see doc/alttab.ad for e
     resource: alttab.desktops  
     default: <0>
 
-    Show windows belonging to desktops (workspaces, groups). <NUMBER> must be 0, 1 or 2:
+    Show windows belonging to desktops (workspaces, groups). <NUMBER> must be between 0 and 3:
 
       <0>: Current desktop.
 
@@ -88,6 +88,8 @@ Most command line options have corresponding X resource, see doc/alttab.ad for e
       In various EWMH WM this desktop may be designed hidden
       or containing sticky windows. In i3, it's "scratchpad".
 
+      <3>: All desktops, excluding current one.
+
   * `-sc` <NUMBER>:
     resource: alttab.screens  
     default: <1>

src/alttab.c

@@ -47,15 +47,15 @@ void helpexit()
 	fprintf(stderr, "alttab, the task switcher.\n\
 Options:\n\
     -w N      window manager: 0=no, 1=ewmh-compatible, 2=ratpoison, 3=old fashion\n\
-    -d N      desktop: 0=current 1=all, 2=all but special\n\
+    -d N      desktop: 0=current 1=all, 2=all but special, 3=all but current\n\
    -sc N      screen: 0=current 1=all\n\
    -mm N      main modifier mask\n\
    -bm N      backward scroll modifier mask\n\
    -kk N      keysym of main modifier\n\
    -mk N      keysym of main key\n\
     -t NxM    tile geometry\n\
     -i NxM    icon geometry\n\
-   -vp geo    switcher viewport: focus, pointer, total, WxH+X+Y\n\
+   -vp str    switcher viewport: focus, pointer, total, WxH+X+Y\n\
     -p str    switcher position: center, none, +X+Y\n\
     -s N      icon source: 0=X11 only, 1=fallback to files, 2=best size, 3=files only\n\
 -theme name   icon theme\n\

src/alttab.h

@@ -141,7 +141,8 @@ typedef struct {
 #define DESK_CURRENT    0
 #define DESK_ALL        1
 #define DESK_NOSPECIAL  2
-#define DESK_MAX        2
+#define DESK_NOCURRENT  3
+#define DESK_MAX        3
 #define DESK_DEFAULT    DESK_CURRENT
     int option_desktop;
 #define SCR_MIN        0

src/ewmh.c

@@ -260,6 +260,13 @@ int ewmh_initWinlist(quad screen)
             }
             continue;
         }
+        if (g.option_desktop == DESK_NOCURRENT
+                && current_desktop == window_desktop) {
+	        if (g.debug > 1) {
+                fprintf (stderr, "window on current desktop, skipped\n");
+            }
+            continue;
+        }
 
         if (g.option_screen == SCR_CURRENT) {
             if (! get_absolute_coordinates(w, &wq)) {

src/win.c

@@ -28,7 +28,7 @@ along with alttab.  If not, see <http://www.gnu.org/licenses/>.
 #include <unistd.h>
 #include <string.h>
 #include <utlist.h>
-#include <sys/time.h>
+//#include <sys/time.h>
 #include "alttab.h"
 #include "util.h"
 extern Globals g;