Attachment 139757 Details for Bug 106648 – Patch to use accelerated deltas for scrolling

[patch] Patch to use accelerated deltas for scrolling

0002-Use-accelerated-coordinates-for-trackpoint-scrolling.patch (text/plain), 1.37 KB, created by Chow Loong Jin on 2018-05-25 11:01:35 UTC

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Creator: Chow Loong Jin

Created: 2018-05-25 11:01:35 UTC

Size: 1.37 KB

patch

obsolete

>From 72aee3d303595ce20c3393e1ef1cbe9cfdfc6669 Mon Sep 17 00:00:00 2001
>From: Chow Loong Jin <hyperair@debian.org>
>Date: Fri, 11 May 2018 23:28:59 +0800
>Subject: [PATCH 2/2] Use accelerated coordinates for trackpoint scrolling
>
>With trackpoint button scrolling, one typically expects the document to move at
>the same speed that the pointer would move if not scrolling. This commit turns
>on acceleration for trackpoint button scrolling so that we can see that
>behaviour.
>
>Signed-off-by: Chow Loong Jin <hyperair@debian.org>
>---
> src/evdev-fallback.c | 7 +++----
> 1 file changed, 3 insertions(+), 4 deletions(-)
>
>diff --git a/src/evdev-fallback.c b/src/evdev-fallback.c
>index fa01faa4..13bc4b02 100644
>--- a/src/evdev-fallback.c
>+++ b/src/evdev-fallback.c
>@@ -177,10 +177,6 @@ fallback_flush_relative_motion(struct fallback_dispatch *dispatch,
> 	dispatch->rel.x = 0;
> 	dispatch->rel.y = 0;
> 
>-	/* Use unaccelerated deltas for pointing stick scroll */
>-	if (post_trackpoint_scroll(device, unaccel, time))
>-		return;
>-
> 	if (device->pointer.filter) {
> 		/* Apply pointer acceleration. */
> 		accel = filter_dispatch(device->pointer.filter,
>@@ -193,6 +189,9 @@ fallback_flush_relative_motion(struct fallback_dispatch *dispatch,
> 		accel = unaccel;
> 	}
> 
>+	if (post_trackpoint_scroll(device, accel, time))
>+		return;
>+
> 	if (normalized_is_zero(accel) && normalized_is_zero(unaccel))
> 		return;
> 
>-- 
>2.17.0
>

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