From f3047ab1e572e7185adea824516b6db898a75f34 Mon Sep 17 00:00:00 2001
From: Mihir Lad <mihirlad55@gmail.com>
Date: Tue, 21 Jul 2020 18:45:26 -0400
Subject: [PATCH] dwm: Add layout-reverse-scroll option

This option simply reverses the direction in which the scroll cycles through the
layouts.
---
 config.cmake            |  1 +
 include/modules/dwm.hpp |  5 +++++
 src/modules/dwm.cpp     | 10 ++++++++--
 3 files changed, 14 insertions(+), 2 deletions(-)

diff --git a/config.cmake b/config.cmake
index 7ad14ffc..0846b4c5 100644
--- a/config.cmake
+++ b/config.cmake
@@ -174,6 +174,7 @@ enable-tags-click = false
 enable-layout-click = false
 enable-layout-scroll = false
 layout-scroll-wrap = false
+layout-scroll-reverse = false
 
 ; If enable-layout-click = true, clicking the layout symbol will switch to this layout
 secondary-layout-symbol = [M]
diff --git a/include/modules/dwm.hpp b/include/modules/dwm.hpp
index 1b86de27..e0533655 100644
--- a/include/modules/dwm.hpp
+++ b/include/modules/dwm.hpp
@@ -258,6 +258,11 @@ namespace modules {
      */
     bool m_layout_wrap{true};
 
+    /**
+     * If true, scrolling the layout will cycle layouts in the reverse direction
+     */
+    bool m_layout_reverse{false};
+
     /**
      * If the layout symbol is clicked on, it will set the layout represented by
      * this symbol. The default is monocle mode [M].
diff --git a/src/modules/dwm.cpp b/src/modules/dwm.cpp
index 2ee041a1..02639705 100644
--- a/src/modules/dwm.cpp
+++ b/src/modules/dwm.cpp
@@ -58,6 +58,7 @@ namespace modules {
     m_layout_click = m_conf.get(name(), "enable-layout-click", m_layout_click);
     m_layout_scroll = m_conf.get(name(), "enable-layout-scroll", m_layout_scroll);
     m_layout_wrap = m_conf.get(name(), "layout-scroll-wrap", m_layout_wrap);
+    m_layout_reverse = m_conf.get(name(), "layout-scroll-reverse", m_layout_reverse);
     m_secondary_layout_symbol = m_conf.get(name(), "secondary-layout-symbol", m_secondary_layout_symbol);
 
     try {
@@ -164,8 +165,13 @@ namespace modules {
       if (m_layout_scroll) {
         auto addr_next = next_layout(*m_current_layout, m_layout_wrap)->address;
         auto addr_prev = prev_layout(*m_current_layout, m_layout_wrap)->address;
-        builder->cmd(mousebtn::SCROLL_DOWN, build_cmd(EVENT_LAYOUT_SDOWN, to_string(addr_prev)));
-        builder->cmd(mousebtn::SCROLL_UP, build_cmd(EVENT_LAYOUT_SUP, to_string(addr_next)));
+        if (m_layout_reverse) {
+          builder->cmd(mousebtn::SCROLL_DOWN, build_cmd(EVENT_LAYOUT_SDOWN, to_string(addr_prev)));
+          builder->cmd(mousebtn::SCROLL_UP, build_cmd(EVENT_LAYOUT_SUP, to_string(addr_next)));
+        } else {
+          builder->cmd(mousebtn::SCROLL_DOWN, build_cmd(EVENT_LAYOUT_SDOWN, to_string(addr_next)));
+          builder->cmd(mousebtn::SCROLL_UP, build_cmd(EVENT_LAYOUT_SUP, to_string(addr_prev)));
+        }
       }
       builder->node(m_layout_label);
       if (m_layout_click) {