move TODO and internals to their own text file

1 files changed, 89 insertions, 0 deletions

diff --git a/doc/internals.txt b/doc/internals.txt
new file mode 100644
index 0000000..7a8b34d
--- /dev/null
+++ b/doc/internals.txt
@@ -0,0 +1,89 @@
+Internals
+=========
+
+=== algo to handle threaded graph layouting correctly ===
+
+###### GENERAL ALGO
+_layouting_start(graph-2, coords-2);
+
+_add/del(structs-3);
+_repositionning(graph, structs, coords);
+
+_layouting_end(coords-2);
+
+_v2_updtate(structs-2, graph-2, coords-2);
+  _v2_structs/graph_update(structs-2, graph);
+    -> structs, graph // real add/del
+  _coords_copy(coords-2);
+    -> coords
+
+_repositionning(graph, structs, coords);
+
+_v3_update(structs-3);
+  _v3_structs/graph_update(structs-3, graph-2);
+    -> structs-2, graph-2
+
+###### TIMELINE VERTICE ADD
+egraph_vertice_add();
+  id = freeids[vertices_count];
+  v = vertices[id];
+  v->id = id;
+  vertices_count++;
+  v->v3-new = 1;
+
+_v3_update();
+  v->v2-new = v->v3-new;
+  v->v3-new = 0;
+  _v2_add()
+    v->graph2_vid = graph2_vcount;
+    graph2_vcount++;
+    igraph_add_vertices(graph2);
+
+_layouting_start();
+  // end up in coords2
+
+_layouting_end();
+_coords_copy();
+  // end up in coords
+
+_v2_update();
+  _add()
+    v->v2-new = 0;
+    v->graph_vid = graph_vcount;
+    graph_vcount++;
+    igraph_add_vertices(graph);
+    evas_object
+
+// in structs, graph, coords
+
+###### TIMELINE VERTICE DEL
+egraph_vertice_del();
+  v->v3-del = 1;
+
+_v3_update();
+  v->v2-del = v->v3-del;
+  v->v3-del = 0;
+  _v2_del()
+    igraph_delete_vertices(v->graph2_vid);
+    graph2_vcount--;
+
+_layouting_start();
+  // not in coords2
+
+_layouting_end();
+_coords_copy();
+  // not in coords
+
+_v2_update();
+  _del();
+    igraph_delete_vertices(v->graph_vid);
+    graph_vcount--;
+    freeids[vertices_count] = v->id;
+    vertices_count--;
+    free(v);
+
+// removed from structs, graph, coords
+
+###### TIMELINE VERTICE DEL
+
+