Handle a collapse request by marking all descendents of that node as

2002-03-08  Christopher James Lahey  <clahey@ximian.com>

	* e-tree-memory.c (etmm_node_request_collapse): Handle a collapse
	request by marking all descendents of that node as needing their
	children recomputed.

	* e-tree-model.c, e-tree-model.h
	(e_tree_model_node_request_collapse): Added this signal to request
	that the view of your tree collapse this node.

	* e-tree-selection-model.c (etsm_selected_count): Pass the root of
	the sorted model here instead of the root of the base model.

	* e-tree-table-adapter.c (etta_proxy_node_request_collapse):
	Handle a collapse request by collapsing the node in the tree.

svn path=/trunk/; revision=15990

1 files changed, 35 insertions, 13 deletions

diff --git a/widgets/table/e-tree-memory.c b/widgets/table/e-tree-memory.c
index 74c160ab9f..27948727f7 100644
--- a/widgets/table/e-tree-memory.c
+++ b/widgets/table/e-tree-memory.c
@@ -329,6 +329,26 @@ etmm_get_expanded_default (ETreeModel *etm)
 	return priv->expanded_default;
 }
 
+static void
+etmm_clear_children_computed (ETreeMemoryPath *path)
+{
+	for (path = path->first_child; path; path = path->next_sibling) {
+		path->children_computed = FALSE;
+		etmm_clear_children_computed (path);
+	}
+}
+
+static void
+etmm_node_request_collapse (ETreeModel *etm, ETreePath node)
+{
+	if (node)
+		etmm_clear_children_computed (node);
+
+	if (parent_class->node_request_collapse) {
+		parent_class->node_request_collapse (etm, node);
+	}
+}
+
 
 static void
 e_tree_memory_class_init (ETreeMemoryClass *klass)
@@ -350,22 +370,24 @@ e_tree_memory_class_init (ETreeMemoryClass *klass)
 
 	E_OBJECT_CLASS_ADD_SIGNALS (object_class, signals, LAST_SIGNAL);
 
-	object_class->destroy            = etmm_destroy;
+	object_class->destroy             = etmm_destroy;
+
+	tree_class->get_root              = etmm_get_root;
+	tree_class->get_prev              = etmm_get_prev;
+	tree_class->get_next              = etmm_get_next;
+	tree_class->get_first_child       = etmm_get_first_child;
+	tree_class->get_last_child        = etmm_get_last_child;
+	tree_class->get_parent            = etmm_get_parent;
 
-	tree_class->get_root             = etmm_get_root;
-	tree_class->get_prev             = etmm_get_prev;
-	tree_class->get_next             = etmm_get_next;
-	tree_class->get_first_child      = etmm_get_first_child;
-	tree_class->get_last_child       = etmm_get_last_child;
-	tree_class->get_parent           = etmm_get_parent;
+	tree_class->is_root               = etmm_is_root;
+	tree_class->is_expandable         = etmm_is_expandable;
+	tree_class->get_children          = etmm_get_children;
+	tree_class->depth                 = etmm_depth;
+	tree_class->get_expanded_default  = etmm_get_expanded_default;
 
-	tree_class->is_root              = etmm_is_root;
-	tree_class->is_expandable        = etmm_is_expandable;
-	tree_class->get_children         = etmm_get_children;
-	tree_class->depth                = etmm_depth;
-	tree_class->get_expanded_default = etmm_get_expanded_default;
+	tree_class->node_request_collapse = etmm_node_request_collapse;
 
-	klass->fill_in_children          = NULL;
+	klass->fill_in_children           = NULL;
 }
 
 static void