Hi, I'll use this mail information collection for hierarchy code. Please put comments on the hierarchy code as follow ups to this message.
There are two possible ways: a: put the hierarchy into a g_node structure and traverse it using the glib function: http://developer.gnome.org/doc/API/2.0/glib/glib-N-ary-Trees.html void g_node_traverse (GNode *root, GTraverseType order, GTraverseFlags flags, gint max_depth, GNodeTraverseFunc func, gpointer data); b: write a traversing function that is similar to g_node_traverse this function could have additional options to set traversing oder and level. I'll take the second choise: The function prototype may be in libgeda -> s_hierarch.c and look like this: int s_hierarchy_traverse(PAGE * p_start, page_travers_order_type order, page_travers_flag_type flags, int max_depth, page_traverse_func func, void * data) p_start --> page to start at: this may be p_current of w_current order --> preorder, postorder, logical logical would be the way a person would travers ;-) flags --> single page, multipage, hierarchical max_depth --> limit the recursion depth func --> user given function: int func(PAGE *p, void * data) data --> the data passed to the user function return value may be a schematic count and negative values for error codes. I think the traverse function can only walk down and the hierarchy, (accessing multipage sisters and brothers; accessing child schematics) Problems: If there's a reference to a single page of a multipage schematic: * is only the single page refered or the whole multipage schematic? (see attachment: master_schematic refers one page of multipage schematic) * if a schematic with two symbol refer different pages of a multipage schematic. Add one ore two complete multipage schematics to the hierarchy? (see attachment: schematic4 referes two subschematics of a multipage schematic) * accessing two multipage schematics from different parrent schematics (not in the attachment) Comments? Either here or IRC Side notes: previous schematic and next schematic doesn't work jumping from multipage1_1.sch to multipage1_2.sch is not possible. Regards Werner
hierarchy_overview.sch
Description: application/sch-geda
