tdf#131120 use a replacement for GtkComboBox

the problems with GtkComboBox we have are:

1) https://gitlab.gnome.org/GNOME/gtk/issues/1910 has_entry long menus take
   forever to appear (tdf#125388)

   on measuring each row, the GtkComboBox GtkTreeMenu will call its
   area_apply_attributes_cb function on the row, but that calls
   gtk_tree_menu_get_path_item which then loops through each child of the menu
   looking for the widget of the row, so performance drops to useless.

   All area_apply_attributes_cb does it set menu item sensitivity, so block it
   from running with fragile hackery which assumes that the unwanted callback is
   the only one with a

2) https://gitlab.gnome.org/GNOME/gtk/issues/94
   when a super tall combobox menu is activated, and the selected entry is
   sufficiently far down the list, then the menu doesn't appear under wayland

3) https://gitlab.gnome.org/GNOME/gtk/issues/310
   no typeahead support

4) we want to be able to control the width of the button, but have a drop down menu which
   is not limited to the width of the button

5) https://bugs.documentfoundation.org/show_bug.cgi?id=131120
   super tall menu doesn't appear under X sometimes

In general we often pack a lot into the comboboxes and the default ones don't
like that.

Overlay scrolling is turned off for the GtkTreeView replacement because
otherwise there are null-derefs in gtk on indicator->scrollbar on repeated
reopenings

Change-Id: I1b6164020996377341b5992d593a027b76021f65
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/91990
Tested-by: Jenkins
Reviewed-by: Caolán McNamara <caolanm@redhat.com>

1 files changed, 15 insertions, 0 deletions

diff --git a/vcl/inc/unx/gtk/gtkframe.hxx b/vcl/inc/unx/gtk/gtkframe.hxx
index d9d2d0d6631b..f62dd649dbef 100644
--- a/vcl/inc/unx/gtk/gtkframe.hxx
+++ b/vcl/inc/unx/gtk/gtkframe.hxx
@@ -529,6 +529,21 @@ AtkObject* ooo_fixed_get_accessible(GtkWidget *obj);
 
 } // extern "C"
 
+#if !GTK_CHECK_VERSION(3, 22, 0)
+enum GdkAnchorHints
+{
+  GDK_ANCHOR_FLIP_X   = 1 << 0,
+  GDK_ANCHOR_FLIP_Y   = 1 << 1,
+  GDK_ANCHOR_SLIDE_X  = 1 << 2,
+  GDK_ANCHOR_SLIDE_Y  = 1 << 3,
+  GDK_ANCHOR_RESIZE_X = 1 << 4,
+  GDK_ANCHOR_RESIZE_Y = 1 << 5,
+  GDK_ANCHOR_FLIP     = GDK_ANCHOR_FLIP_X | GDK_ANCHOR_FLIP_Y,
+  GDK_ANCHOR_SLIDE    = GDK_ANCHOR_SLIDE_X | GDK_ANCHOR_SLIDE_Y,
+  GDK_ANCHOR_RESIZE   = GDK_ANCHOR_RESIZE_X | GDK_ANCHOR_RESIZE_Y
+};
+#endif
+
 #endif // INCLUDED_VCL_INC_UNX_GTK_GTKFRAME_HXX
 
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