gridview: Export some functions privately

This will let us write tests for the tile splitting code.

gtk/gtkgridview.c

@@ -19,7 +19,7 @@
 
 #include "config.h"
 
-#include "gtkgridview.h"
+#include "gtkgridviewprivate.h"
 
 #include "gtkbitset.h"
 #include "gtklistbaseprivate.h"
@@ -386,7 +386,7 @@ gtk_grid_view_get_allocation (GtkListBase  *base,
 
 /* Returns the column that the given item will fall in.
  */
-static unsigned int
+unsigned int
 gtk_grid_view_get_column_for_position (GtkListItemManager *items,
                                        unsigned int        n_columns,
                                        unsigned int        position)
@@ -397,7 +397,7 @@ gtk_grid_view_get_column_for_position (GtkListItemManager *items,
 /* Determine whether a tile is contained in a single row,
  * or spans multiple rows.
  */
-static gboolean
+gboolean
 gtk_grid_view_is_multirow_tile (GtkListItemManager *items,
                                 unsigned int        n_columns,
                                 GtkListTile        *tile)
@@ -767,7 +767,7 @@ gtk_grid_view_measure (GtkWidget      *widget,
     gtk_grid_view_measure_across (widget, for_size, minimum, natural);
 }
 
-static void
+void
 gtk_grid_view_split_tiles_by_columns (GtkListItemManager *items,
                                       guint               n_columns)
 {

gtk/gtkgridviewprivate.h

@@ -0,0 +1,40 @@
+/*
+ * Copyright © 2023 Red Hat, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+
+#pragma once
+
+#include "gtk/gtktypes.h"
+#include "gtk/gtkenums.h"
+#include "gtk/gtkgridview.h"
+#include "gtk/gtklistitemmanagerprivate.h"
+
+G_BEGIN_DECLS
+
+unsigned int gtk_grid_view_get_column_for_position (GtkListItemManager *items,
+                                                    unsigned int        n_columns,
+                                                    unsigned int        position);
+
+gboolean     gtk_grid_view_is_multirow_tile        (GtkListItemManager *items,
+                                                    unsigned int        n_columns,
+                                                    GtkListTile        *tile);
+
+void         gtk_grid_view_split_tiles_by_columns  (GtkListItemManager *items,
+                                                    guint               n_columns);
+
+G_END_DECLS
+