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use protobuf::{self, Message}; use {Screen, Node, Meta, random_fg_color}; use pb; pub fn serialize_screen(screen: &Screen) -> Vec<u8> { let mut screen_pb = pb::Screen::default(); screen_pb.set_max_id(screen.max_id); let nodes = screen.nodes .iter() .map(|(_, node)| serialize_node(node)) .collect(); screen_pb.set_nodes(protobuf::RepeatedField::from_vec(nodes)); let arrows = screen.arrows .iter() .map(|&(from, to)| { let mut arrow_pb = pb::Arrow::default(); arrow_pb.set_from_node(from); arrow_pb.set_to_node(to); arrow_pb }) .collect(); screen_pb.set_arrows(protobuf::RepeatedField::from_vec(arrows)); screen_pb.write_to_bytes().unwrap() } fn serialize_meta(meta: &Meta) -> pb::Meta { let mut gps_pb = pb::Gps::default(); gps_pb.set_lat(meta.gps.0); gps_pb.set_lon(meta.gps.1); let mut meta_pb = pb::Meta::default(); meta_pb.set_gps(gps_pb); meta_pb.set_ctime(meta.ctime); meta_pb.set_mtime(meta.mtime); if let Some(finish_time) = meta.finish_time { meta_pb.set_finish_time(finish_time); } let mut tags = vec![]; for (tagk, tagv) in &meta.tags { let mut tag = pb::Tag::default(); tag.set_key(tagk.clone()); tag.set_value(tagv.clone()); tags.push(tag); } meta_pb.set_tags(protobuf::RepeatedField::from_vec(tags)); meta_pb } fn serialize_node(node: &Node) -> pb::Node { let mut node_pb = pb::Node::default(); node_pb.set_id(node.id); node_pb.set_text(node.content.clone()); node_pb.set_children(node.children.clone()); node_pb.set_collapsed(node.collapsed); node_pb.set_stricken(node.stricken); node_pb.set_hide_stricken(node.hide_stricken); node_pb.set_parent_id(node.parent_id); node_pb.set_x(node.rooted_coords.0 as u32); node_pb.set_y(node.rooted_coords.1 as u32); node_pb.set_meta(serialize_meta(&node.meta)); if let Some(ref free_text) = node.free_text { node_pb.set_free_text(free_text.to_owned()); } node_pb } fn deserialize_meta(meta_pb: &pb::Meta) -> Meta { let gps = meta_pb.get_gps(); Meta { ctime: meta_pb.get_ctime(), mtime: meta_pb.get_mtime(), finish_time: if meta_pb.has_finish_time() { Some(meta_pb.get_finish_time()) } else { None }, gps: (gps.get_lat(), gps.get_lon()), tags: meta_pb.get_tags() .iter() .map(|tag| (tag.get_key().to_owned(), tag.get_value().to_owned())) .collect(), } } fn deserialize_node(node_pb: &pb::Node) -> Node { Node { parent_id: node_pb.get_parent_id(), rooted_coords: (node_pb.get_x() as u16, node_pb.get_y() as u16), content: node_pb.get_text().to_owned(), children: node_pb.get_children().to_vec(), selected: node_pb.get_selected(), collapsed: node_pb.get_collapsed(), stricken: node_pb.get_stricken(), hide_stricken: node_pb.get_hide_stricken(), meta: deserialize_meta(node_pb.get_meta()), id: node_pb.get_id(), free_text: if node_pb.has_free_text() { Some(node_pb.get_free_text().to_owned()) } else { None }, color: random_fg_color(), auto_arrange: false, } } pub fn deserialize_screen(data: Vec<u8>) -> Result<Screen, protobuf::ProtobufError> { let screen_pb: pb::Screen = protobuf::parse_from_bytes(&*data)?; let mut screen = Screen::default(); screen.max_id = screen_pb.get_max_id(); screen.nodes = screen_pb.get_nodes() .iter() .map(|node_pb| { let node = deserialize_node(node_pb); (node.id, node) }) .collect(); screen.arrows = screen_pb.get_arrows() .iter() .map(|arrow_pb| { let from = arrow_pb.get_from_node(); let to = arrow_pb.get_to_node(); (from, to) }) .collect(); Ok(screen) }