Public bug reported:

Summary:

The direction of horizontal scrolling isn't affected by "Reverse
scrolling direction"


How to reproduce:

1) Open touchpad settings - Menu | Settings | Mouse and Touchpad
2) Enable horizontal scrolling - Touchpad | Enable horizontal scrolling
3) Invert scrolling direction* - Buttons and feedback | Reverse scroll direction


Expected behaviour:

The horizontal scrolling direction should be inverted - i.e. swiping two
fingers from left to right should cause the window content to move from
left to right - i.e. "natural scrolling".


Justification:

There are two logical scrolling modes:

1) The touchpad moves the viewport (and window content remains static) -
this is the classic Windows behaviour; dragging a vertical scrollbar
downwards gives the impression that the window content moves upwards
(i.e. the view moves downwards and the window content does not move).
This shall be known as "viewport control".

2) The touchpad moves window content (and the viewport remains static) -
this is the modern OSX behaviour; swiping down gives the impression that
the window content also moves downwards (i.e. the window content moves
down and the viewport does not move).  This shall be known as "page
control".

When enabling both of the above settings ("Enable horizontal scrolling"
and "Reverse scroll direction"), the behaviour is "page control" on the
vertical axis, but "viewport control" on the horizontal axis - this is
really uncomfortable/counter-intuitive.

To summarize - the "Reverse scroll direction" has no effect on the
horizontal axis.

ProblemType: Bug
DistroRelease: Ubuntu 14.10
Package: xfce4-settings 4.11.3-0ubuntu2
ProcVersionSignature: Ubuntu 3.16.0-29.39-generic 3.16.7-ckt2
Uname: Linux 3.16.0-29-generic x86_64
ApportVersion: 2.14.7-0ubuntu8.1
Architecture: amd64
CurrentDesktop: XFCE
Date: Sat Jan 10 21:49:22 2015
ExecutablePath: /usr/bin/xfce4-mouse-settings
InstallationDate: Installed on 2015-01-10 (0 days ago)
InstallationMedia: Xubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1)
ProcEnviron:
 LANGUAGE=en_GB:en
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
SourcePackage: xfce4-settings
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: xfce4-settings (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug utopic

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https://bugs.launchpad.net/bugs/1409347

Title:
  "Enable horizontal scrolling" doesn't work with "Reverse scroll
  direction"

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