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GtkListBox: Improve focus scrolling

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We are trying to scroll the header in view together with the
focus row. The way this is implemented works fine when scrolling
up, but falls short when scrolling down. Fix this by making sure
that both the row and the header bar visible.
This commit is contained in:
Matthias Clasen 2015-07-19 22:18:58 -04:00
parent 52c4955d21
commit 1da92c2800
1 changed files with 11 additions and 6 deletions
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17
gtk/gtklistbox.c
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@ -1425,21 +1425,26 @@ ensure_row_visible (GtkListBox *box,
{
GtkListBoxPrivate *priv = BOX_PRIV (box);
GtkWidget *header;
GtkWidget *widget;
gint y, height;
GtkAllocation allocation;
if (!priv->adjustment)
return;
gtk_widget_get_allocation (GTK_WIDGET (row), &allocation);
y = allocation.y;
height = allocation.height;
/* If the row has a header, we want to ensure that it is visible as well. */
header = ROW_PRIV (row)->header;
if (GTK_IS_WIDGET (header) && gtk_widget_is_drawable (header))
widget = header;
else
widget = GTK_WIDGET (row);
{
gtk_widget_get_allocation (header, &allocation);
y = allocation.y;
height += allocation.height;
}
gtk_widget_get_allocation (widget, &allocation);
gtk_adjustment_clamp_page (priv->adjustment, allocation.y, allocation.y + allocation.height);
gtk_adjustment_clamp_page (priv->adjustment, y, y + height);
}
static void