2002-05-01  David Emory Watson  <dwatson@cs.ucr.edu>

	Implement zooming for the list view and other small cleanups.

	* src/file-manager/fm-list-view.c:
	(create_and_set_up_tree_view): Keep track of cell renderers.
	(fm_list_view_begin_loading): Set initial zoom level.
	(set_zoom_level_from_metadata_and_preferences),
	(fm_list_view_set_zoom_level),
	(fm_list_view_bump_zoom_level),
	(fm_list_view_zoom_to_level),
	(fm_list_view_restore_default_zoom_level),
	(fm_list_view_can_zoom_in),
	(fm_list_view_can_zoom_out),
	(default_zoom_level_changed): Impl.
	(fm_list_view_class_init): Hook up zoom auto value.
	(fm_list_view_instance_init): Use while_alive to monitor changes to
	default_zoom_level and click_policy.
	(fm_list_view_finalize): Update click_policy callback.

	Added a column for each pixbuf size to the model.

	* src/file-manager/fm-list-model.c,
	src/file-manager/fm-list-model.h:
	(fm_list_model_get_column_type): Update.
	(fm_list_model_get_column_id_from_zoom_level),
	(fm_list_model_get_zoom_level_from_column_id): Impl.
	(fm_list_model_get_value): Update.