Commit: patch 9.1.0081: X11 mouse-scrolling stutters

[Christian Brabandt]

patch 9.1.0081: X11 mouse-scrolling stutters

Commit: https://github.com/vim/vim/commit/1efb1b08a142560af50f7e68c935f067944742a3
Author: lilydjwg <lily...@gmail.com>
Date: Thu Feb 8 11:04:21 2024 +0100

patch 9.1.0081: X11 mouse-scrolling stutters

Problem: X11 mouse-scrolling stutters
(Ron Aaron, after 9.1.0064)
Solution: Handle GDK_SCROLL_SMOOTH fractional distance events
(lilydjwg)

I don't know why, but with GDK_SMOOTH_SCROLL_MASK we get wheel events as
GDK_SCROLL_SMOOTH. What's more, one wheel scroll is counted as 1.5
distance in Wayland but 1.0 in X11.

I failed to find any docs on gtk.org about this.

fixes: #13987
closes: #13991

Signed-off-by: lilydjwg <lily...@gmail.com>
Signed-off-by: Christian Brabandt <c...@256bit.org>

diff --git a/src/gui_gtk_x11.c b/src/gui_gtk_x11.c
index dd0179ee0..98ab3d49b 100644
--- a/src/gui_gtk_x11.c
+++ b/src/gui_gtk_x11.c
@@ -2105,25 +2105,25 @@ scroll_event(GtkWidget *widget,
#if GTK_CHECK_VERSION(3,4,0)
if (event->direction == GDK_SCROLL_SMOOTH)
{
- while (acc_x > 1.0)
+ while (acc_x >= 1.0)
{ // right
acc_x = MAX(0.0, acc_x - 1.0);
gui_send_mouse_event(MOUSE_6, (int)event->x, (int)event->y,
FALSE, vim_modifiers);
}
- while (acc_x < -1.0)
+ while (acc_x <= -1.0)
{ // left
acc_x = MIN(0.0, acc_x + 1.0);
gui_send_mouse_event(MOUSE_7, (int)event->x, (int)event->y,
FALSE, vim_modifiers);
}
- while (acc_y > 1.0)
+ while (acc_y >= 1.0)
{ // down
acc_y = MAX(0.0, acc_y - 1.0);
gui_send_mouse_event(MOUSE_5, (int)event->x, (int)event->y,
FALSE, vim_modifiers);
}
- while (acc_y < -1.0)
+ while (acc_y <= -1.0)
{ // up
acc_y = MIN(0.0, acc_y + 1.0);
gui_send_mouse_event(MOUSE_4, (int)event->x, (int)event->y,
diff --git a/src/version.c b/src/version.c
index 36f9dc07e..408dd37b9 100644
--- a/src/version.c
+++ b/src/version.c
@@ -704,6 +704,8 @@ static char *(features[]) =

static int included_patches[] =
{ /* Add new patch number below this line */
+/**/
+ 81,
/**/
80,
/**/