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spinbutton: Fix a corner case

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Fix a bug where a zero increment would make the value unsettable,
when the more natural operation is to allow any value to be set.
This commit is contained in:
Matthias Clasen
2024-04-04 14:11:10 +02:00
parent eeca751fdc
commit cd556c3811
1 changed files with 9 additions and 8 deletions
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17
gtk/gtkspinbutton.c
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@@ -1524,17 +1524,18 @@ gtk_spin_button_snap (GtkSpinButton *spin_button,
double val)
{
double inc;
double tmp;
inc = gtk_adjustment_get_step_increment (spin_button->adjustment);
if (inc == 0)
return;
if (inc != 0)
{
double tmp;
tmp = (val - gtk_adjustment_get_lower (spin_button->adjustment)) / inc;
if (tmp - floor (tmp) < ceil (tmp) - tmp)
val = gtk_adjustment_get_lower (spin_button->adjustment) + floor (tmp) * inc;
else
val = gtk_adjustment_get_lower (spin_button->adjustment) + ceil (tmp) * inc;
tmp = (val - gtk_adjustment_get_lower (spin_button->adjustment)) / inc;
if (tmp - floor (tmp) < ceil (tmp) - tmp)
val = gtk_adjustment_get_lower (spin_button->adjustment) + floor (tmp) * inc;
else
val = gtk_adjustment_get_lower (spin_button->adjustment) + ceil (tmp) * inc;
}
gtk_spin_button_set_value (spin_button, val);
}