An alternative approach to how Kaptan handles left-handed mode

kaptan/libkaptan/ui_mouse.py

@@ -20,6 +20,7 @@
     QSpacerItem, QSizePolicy, QButtonGroup
 from PyQt5.QtGui import QIcon
 from PyQt5.QtCore import *
+import os
 
 from os.path import join
 
@@ -118,9 +119,9 @@ def folderClick(self, button):
 
     def mouseButton(self, button):
         if button == self.radiobutton3:
-            self.mouseButtonMap = "RightHanded"
+            self.mouseButtonMap = "false"
         else:
-            self.mouseButtonMap = "LeftHanded"
+            self.mouseButtonMap = "true"
 
     def reverseScroll(self):
         if self.checkbox.isChecked():
@@ -132,9 +133,15 @@ def execute(self):
         settings1 = QSettings(join(QDir.homePath(), ".config", "kcminputrc"), QSettings.IniFormat)
         settings2 = QSettings(join(QDir.homePath(), ".config", "kdeglobals"), QSettings.IniFormat)
 
-        settings1.setValue("Mouse/MouseButtonMapping", self.mouseButtonMap)
+        settings1.setValue("Mouse/XLbInptLeftHanded", self.mouseButtonMap)
         settings1.setValue("Mouse/ReverseScrollPolarity", self.reverseScrollPolarity)
         settings1.sync()
+
+        if self.mouseButtonMap == "false":
+            os.system('xmodmap -e "pointer = 3 2 1"')
+        else:
+            os.system('xmodmap -e "pointer = 1 2 3"')
+
 
         settings2.setValue("KDE/SingleClick", self.folderSingleClick)
         settings2.sync()