[gtk/columnview-layout: 1/4] columviewlayout: Skip children when we should

[Matthias Clasen <matthiasc src gnome org>]

commit 0f81b5854582a0e8f2d83e99dff1c79e21b0370d
Author: Matthias Clasen <mclasen redhat com>
Date:   Fri Jun 5 08:44:23 2020 -0400

    columviewlayout: Skip children when we should
    
    Every layout manager should call gtk_widget_should_layout
    on their children before measuring or allocating them.
    So do it here too.

 gtk/gtkcolumnviewlayout.c | 6 ++++++
 1 file changed, 6 insertions(+)
---
diff --git a/gtk/gtkcolumnviewlayout.c b/gtk/gtkcolumnviewlayout.c
index 05f218c525..44d99df673 100644
--- a/gtk/gtkcolumnviewlayout.c
+++ b/gtk/gtkcolumnviewlayout.c
@@ -57,6 +57,9 @@ gtk_column_view_layout_measure_along (GtkColumnViewLayout *self,
       int child_min_baseline = -1;
       int child_nat_baseline = -1;
 
+      if (!gtk_widget_should_layout (child))
+        continue;
+
       gtk_widget_measure (child, orientation, for_size,
                           &child_min, &child_nat,
                           &child_min_baseline, &child_nat_baseline);
@@ -117,6 +120,9 @@ gtk_column_view_layout_allocate (GtkLayoutManager *layout_manager,
       GtkColumnViewColumn *column;
       int col_x, col_width;
 
+      if (!gtk_widget_should_layout (child))
+        continue;
+
       if (GTK_IS_COLUMN_VIEW_CELL (child))
         {
           column = gtk_column_view_cell_get_column (GTK_COLUMN_VIEW_CELL (child));