wolf_graph_dot/
group_attributes.rs

1use std::fmt;
2
3use crate::Color;
4
5#[derive(Debug, Clone, PartialEq)]
6pub struct GroupAttributes {
7    pub label: Option<String>,
8    pub color: Option<Color>,
9}
10
11impl GroupAttributes {
12    pub fn new(label: Option<String>, color: Option<Color>) -> Self {
13        Self { label, color }
14    }
15
16    pub fn attributes(&self, enclosed: bool) -> Option<String> {
17        crate::details::encode::encode_attributes(
18            &[
19                ("label", self.label.as_ref().map(|s| s as &dyn ToString)),
20                ("color", self.color.as_ref().map(|c| c as &dyn ToString)),
21            ],
22            enclosed,
23        )
24    }
25}
26
27impl Default for GroupAttributes {
28    fn default() -> Self {
29        Self::new(None, None)
30    }
31}
32
33impl fmt::Display for GroupAttributes {
34    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
35        if let Some(encoded) = self.attributes(true) {
36            write!(f, "{}", encoded)
37        } else {
38            Ok(())
39        }
40    }
41}
wolf_graph_dot/group_attributes.rs

wolf_graph_dot/
group_attributes.rs
