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patch 9.1.0081: X11 mouse-scrolling stutters

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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 <lilydjwg@gmail.com>
Signed-off-by: Christian Brabandt <cb@256bit.org>
This commit is contained in:
lilydjwg
2024-02-08 11:04:21 +01:00
committed by Christian Brabandt
parent c9c2e2d2ff
commit 1efb1b08a1
2 changed files with 6 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

8
src/gui_gtk_x11.c
View File

@ -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,

2
src/version.c
View File

@ -704,6 +704,8 @@ static char *(features[]) =
static int included_patches[] =
{ /* Add new patch number below this line */
/**/
81,
/**/
80,
/**/