Added "layout incnmaster|incncol" commands

sway/commands/layout.c

@@ -74,6 +74,36 @@ struct cmd_results *cmd_layout(int argc, char **argv) {
 				parent = new_container(parent, L_AUTO_BOTTOM);
 			}
 			swayc_change_layout(parent, L_AUTO_BOTTOM);
+		} else if (strcasecmp(argv[0], "incnmaster") == 0)  {
+			if ((error = checkarg(argc, "layout incnmaster",
+					      EXPECTED_EQUAL_TO, 2))) {
+				return error;
+			}
+			int inc = (int) strtol(argv[1], NULL, 10);
+			swayc_t *container = get_focused_view(swayc_active_workspace());
+			if (container && inc &&
+			    is_auto_layout(container->parent->layout) &&
+			    ((int)container->parent->nb_master + inc >= 0)) {
+				for (int i = container->parent->nb_master;
+				     i >= 0 && i < container->parent->children->length &&
+					     i != (int) container->parent->nb_master + inc;) {
+					((swayc_t *) container->parent->children->items[i])->height = -1;
+					((swayc_t *) container->parent->children->items[i])->width = -1;
+					i += inc > 0 ? 1 : -1;
+				}
+				container->parent->nb_master += inc;
+			}
+		} else if ((strcasecmp(argv[0], "incncol") == 0) && argc ==2) {
+			if ((error = checkarg(argc, "layout incncol",
+					      EXPECTED_EQUAL_TO, 2))) {
+				return error;
+			}
+			int inc = (int) strtol(argv[1], NULL, 10);
+			swayc_t *container = get_focused_view(swayc_active_workspace());
+			if (container && inc && is_auto_layout(container->parent->layout) &&
+			    ((int)container->parent->nb_slave_groups + inc >= 1)) {
+				container->parent->nb_slave_groups += inc;
+			}
 		}
 	}
 

sway/sway.5.txt

@@ -62,11 +62,14 @@ They are expected to be used with **bindsym** or at runtime through **swaymsg**(
 	Make focused view floating, non-floating, or the opposite of what it is now.
 
 **focus** <direction>::
-	Direction may be one of _up_, _down_, _left_, _right_, _parent_, or _child_.
-	The directional focus commands will move the focus in that direction. The parent
-	focus command will change the focus to the parent of the currently focused
-	container, which is useful, for example, to open a sibling of the parent
-	container, or to move the entire container around.
+	Direction may be one of _up_, _down_, _left_, _right_, _next_, _prev_,
+	_parent_, or _child_. The directional focus commands will move the focus
+	in that direction. The auto_next and auto_prev will focus the next,
+	respectively previous, element in the current container if it is using
+	one of the _auto_ layouts. The parent focus command will change the
+	focus to the parent of the currently focused container, which is useful,
+	for example, to open a sibling of the parent container, or to move the
+	entire container around.
 
 **focus** output <direction|name>::
 	Direction may be one of _up_, _down_, _left_, _right_. The directional focus
@@ -84,6 +87,11 @@ They are expected to be used with **bindsym** or at runtime through **swaymsg**(
 	_splitv_, _toggle split_, _stacking_, _tabbed_, _auto_left_, _auto_right_,
 	_auto_top, _auto_bottom_.
 
+**layout** <incnmaster|incncol> <n>::
+	Modify the number of master elements, respectively slave columns, in the
+	focused container. <n> can be a positive or negative integer. These commands
+	only have an effect if the focused container uses one of the "auto" layouts.
+
 **move** <left|right|up|down>::
 	Moves the focused container _left_, _right_, _up_, or _down_.