2004-07-07 Matthias Clasen <mclasen@redhat.com>
Support separators in combo boxes and more generally in tree
views (#135873):
* gtk/gtkcombobox.h:
* gtk/gtkcombobox.c (gtk_combo_box_get_row_separator_column):
* gtk/gtkcombobox.c (gtk_combo_box_set_row_separator_column):
Add a ::row-separator-column property with getter and setter,
which can indicate a boolean model column to determine which
rows are separators.
* gtk/gtkcombobox.c: Display separator rows as separator menu
items in menu mode, and by using the new treeview separator
functionality in list mode.
* gtk/gtktreeview.h:
* gtk/gtktreeview.c (gtk_tree_view_get_row_separator_func):
* gtk/gtktreeview.c (gtk_tree_view_set_row_separator_func):
Add a callback to determine whether a row is a separator.
* gtk/gtktreeview.c (gtk_tree_view_bin_expose):
* gtk/gtktreeview.c (gtk_tree_view_create_row_drag_icon):
* gtk/gtktreeview.c (validate_row): Use the new callback
to determine whether a row is a separator, and draw it
as a separator then. Since separators should take up less
vertical space than regular rows, this requires removing
the redundant MAX(...,expander_size) calls which appear in
many places. Instead, the MAX() is now only done in
validate_row(), and only if the row is not a separator.
To catch possible side effects of this intrusive change,
I have left EXPANDER_MAX() calls in place of the MAX() calls
which will emit a warning if something breaks. They should
be removed before 2.6.
* gtk/gtktreeselection.c (row_is_selectable): Don't let
separator rows be selected.
* tests/testcombo.c (create_blaat): Add a separator column.
1aa00e5215
