1 files changed, 34 insertions, 0 deletions
diff --git a/src/command/mod_master_count.zig b/src/command/mod_master_count.zig
new file mode 100644
index 0000000..bd2fde0
--- /dev/null
+++ b/src/command/mod_master_count.zig
@@ -0,0 +1,34 @@
+// This file is part of river, a dynamic tiling wayland compositor.
+//
+// Copyright 2020 Isaac Freund
+//
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program. If not, see <https://www.gnu.org/licenses/>.
+
+const std = @import("std");
+
+const c = @import("../c.zig");
+
+const Arg = @import("../Command.zig").Arg;
+const Seat = @import("../Seat.zig");
+
+/// Modify the number of master views
+pub fn modMasterCount(seat: *Seat, arg: Arg) void {
+    const delta = arg.int;
+    const output = seat.focused_output;
+    output.master_count = @intCast(
+        u32,
+        std.math.max(0, @intCast(i32, output.master_count) + delta),
+    );
+    seat.input_manager.server.root.arrange();
+}