Fix double-click to autosize treeview columns. This was probably broken

Fix double-click to autosize treeview columns. This was probably broken

2005-04-08  Matthias Clasen  <mclasen@redhat.com>

	Fix double-click to autosize treeview columns. This was
	probably broken since 2.2 ! (#169675)

	* gtk/gtktreeview.c (gtk_tree_view_button_press): Leave the
	"user-resized" state of the column on a double-click to
	autosize.
	(gtk_tree_view_button_press, gtk_tree_view_motion_resize_column):
	Enter the "user-resized" state of the column only if a drag
	actually changes the column width, not on any click.