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gtkrange: Add scroll unit handling

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This commit is contained in:
panoplie 2022-02-28 21:45:06 +01:00
parent 53956e5389
commit f9e2c106bc
1 changed files with 11 additions and 9 deletions
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20
gtk/gtkrange.c
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@ -2202,25 +2202,27 @@ gtk_range_scroll_controller_scroll (GtkEventControllerScroll *scroll,
GtkRange *range)
{
GtkRangePrivate *priv = gtk_range_get_instance_private (range);
double scroll_unit, delta;
double delta;
gboolean handled;
GtkOrientation move_orientation;
#ifdef GDK_WINDOWING_MACOS
scroll_unit = 1;
#else
scroll_unit = gtk_adjustment_get_page_increment (priv->adjustment);
#endif
GdkScrollUnit scroll_unit;
if (priv->orientation == GTK_ORIENTATION_HORIZONTAL && dx != 0)
{
move_orientation = GTK_ORIENTATION_HORIZONTAL;
delta = dx * scroll_unit;
delta = dx;
}
else
{
move_orientation = GTK_ORIENTATION_VERTICAL;
delta = dy * scroll_unit;
delta = dy;
}
scroll_unit = gtk_event_controller_scroll_get_unit (scroll);
if (scroll_unit == GDK_SCROLL_UNIT_WHEEL)
{
delta *= gtk_adjustment_get_page_increment (priv->adjustment);
}
if (delta != 0 && should_invert_move (range, move_orientation))