cameleon_genapi/
boolean.rs

1/* This Source Code Form is subject to the terms of the Mozilla Public
2 * License, v. 2.0. If a copy of the MPL was not distributed with this
3 * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
4
5use super::{
6    elem_type::ImmOrPNode,
7    interface::{IBoolean, INode, ISelector},
8    ivalue::IValue,
9    node_base::{NodeAttributeBase, NodeBase, NodeElementBase},
10    store::{CacheStore, IntegerId, NodeId, NodeStore, ValueStore},
11    Device, GenApiError, GenApiResult, ValueCtxt,
12};
13
14#[derive(Debug, Clone)]
15pub struct BooleanNode {
16    pub(crate) attr_base: NodeAttributeBase,
17    pub(crate) elem_base: NodeElementBase,
18
19    pub(crate) streamable: bool,
20    pub(crate) value: ImmOrPNode<IntegerId>,
21    pub(crate) on_value: i64,
22    pub(crate) off_value: i64,
23    pub(crate) p_selected: Vec<NodeId>,
24}
25
26impl BooleanNode {
27    #[must_use]
28    pub fn value_elem(&self) -> ImmOrPNode<IntegerId> {
29        self.value
30    }
31
32    #[must_use]
33    pub fn on_value(&self) -> i64 {
34        self.on_value
35    }
36
37    #[must_use]
38    pub fn off_value(&self) -> i64 {
39        self.off_value
40    }
41
42    #[must_use]
43    pub fn p_selected(&self) -> &[NodeId] {
44        &self.p_selected
45    }
46}
47
48impl INode for BooleanNode {
49    fn node_base(&self) -> NodeBase {
50        NodeBase::new(&self.attr_base, &self.elem_base)
51    }
52
53    fn streamable(&self) -> bool {
54        self.streamable
55    }
56}
57
58impl IBoolean for BooleanNode {
59    #[tracing::instrument(skip(self, device, store, cx),
60                          level = "trace",
61                          fields(node = store.name_by_id(self.node_base().id()).unwrap()))]
62    fn value<T: ValueStore, U: CacheStore>(
63        &self,
64        device: &mut impl Device,
65        store: &impl NodeStore,
66        cx: &mut ValueCtxt<T, U>,
67    ) -> GenApiResult<bool> {
68        let value: i64 = self.value.value(device, store, cx)?;
69        if value == self.on_value {
70            Ok(true)
71        } else if value == self.off_value {
72            Ok(false)
73        } else {
74            Err(GenApiError::invalid_node(
75                "the internal integer value cannot be interpreted as boolean".into(),
76            ))
77        }
78    }
79
80    #[tracing::instrument(skip(self, device, store, cx),
81                          level = "trace",
82                          fields(node = store.name_by_id(self.node_base().id()).unwrap()))]
83    fn set_value<T: ValueStore, U: CacheStore>(
84        &self,
85        value: bool,
86        device: &mut impl Device,
87        store: &impl NodeStore,
88        cx: &mut ValueCtxt<T, U>,
89    ) -> GenApiResult<()> {
90        cx.invalidate_cache_by(self.node_base().id());
91        let value = if value { self.on_value } else { self.off_value };
92        self.value.set_value(value, device, store, cx)
93    }
94
95    #[tracing::instrument(skip(self, device, store, cx),
96                          level = "trace",
97                          fields(node = store.name_by_id(self.node_base().id()).unwrap()))]
98    fn is_readable<T: ValueStore, U: CacheStore>(
99        &self,
100        device: &mut impl Device,
101        store: &impl NodeStore,
102        cx: &mut ValueCtxt<T, U>,
103    ) -> GenApiResult<bool> {
104        Ok(self.elem_base.is_readable(device, store, cx)?
105            && IValue::<i64>::is_readable(&self.value, device, store, cx)?)
106    }
107
108    #[tracing::instrument(skip(self, device, store, cx),
109                          level = "trace",
110                          fields(node = store.name_by_id(self.node_base().id()).unwrap()))]
111    fn is_writable<T: ValueStore, U: CacheStore>(
112        &self,
113        device: &mut impl Device,
114        store: &impl NodeStore,
115        cx: &mut ValueCtxt<T, U>,
116    ) -> GenApiResult<bool> {
117        Ok(self.elem_base.is_writable(device, store, cx)?
118            && IValue::<i64>::is_writable(&self.value, device, store, cx)?)
119    }
120}
121
122impl ISelector for BooleanNode {
123    fn selecting_nodes(&self, _store: &impl NodeStore) -> GenApiResult<&[NodeId]> {
124        Ok(self.p_selected())
125    }
126}