fission_core/ui/widgets/
composite.rs

1use crate::internal::InternalLower;
2use crate::lowering::{InternalIrBuilder, InternalLoweringCx};
3use crate::ui::Widget;
4use fission_ir::{CompositeScalar, CompositeStyle, Op, StructuralOp, WidgetId};
5use serde::{Deserialize, Serialize};
6use std::hash::{Hash, Hasher};
7
8#[derive(Debug, Clone, Serialize, Deserialize)]
9pub struct Composite {
10    pub id: Option<WidgetId>,
11    pub style: CompositeStyle,
12    pub child: Widget,
13}
14
15impl Default for Composite {
16    fn default() -> Self {
17        Self {
18            id: None,
19            style: CompositeStyle::default(),
20            child: crate::ui::widgets::spacer::Spacer::default().into(),
21        }
22    }
23}
24
25impl Composite {
26    pub fn new(child: impl Into<Widget>) -> Self {
27        Self {
28            child: child.into(),
29            ..Default::default()
30        }
31    }
32
33    pub fn opacity(mut self, value: f32) -> Self {
34        self.style.opacity = Some(CompositeScalar::new(value));
35        self
36    }
37
38    pub fn motion_opacity(mut self, target: WidgetId, base: f32) -> Self {
39        self.style.opacity = Some(CompositeScalar::new(base).motion(target));
40        self
41    }
42
43    pub fn translate_x(mut self, value: f32) -> Self {
44        self.style.translate_x = Some(CompositeScalar::new(value));
45        self
46    }
47
48    pub fn motion_translate_x(mut self, target: WidgetId, base: f32) -> Self {
49        self.style.translate_x = Some(CompositeScalar::new(base).motion(target));
50        self
51    }
52
53    pub fn translate_y(mut self, value: f32) -> Self {
54        self.style.translate_y = Some(CompositeScalar::new(value));
55        self
56    }
57
58    pub fn motion_translate_y(mut self, target: WidgetId, base: f32) -> Self {
59        self.style.translate_y = Some(CompositeScalar::new(base).motion(target));
60        self
61    }
62
63    pub fn scale(mut self, value: f32) -> Self {
64        self.style.scale = Some(CompositeScalar::new(value));
65        self
66    }
67
68    pub fn motion_scale(mut self, target: WidgetId, base: f32) -> Self {
69        self.style.scale = Some(CompositeScalar::new(base).motion(target));
70        self
71    }
72
73    pub fn rotation(mut self, value: f32) -> Self {
74        self.style.rotation = Some(CompositeScalar::new(value));
75        self
76    }
77
78    pub fn motion_rotation(mut self, target: WidgetId, base: f32) -> Self {
79        self.style.rotation = Some(CompositeScalar::new(base).motion(target));
80        self
81    }
82
83    pub fn clip_to_bounds(mut self, clip: bool) -> Self {
84        self.style.clip_to_bounds = clip;
85        self
86    }
87
88    pub fn repaint_boundary(mut self, enabled: bool) -> Self {
89        self.style.repaint_boundary = enabled;
90        self
91    }
92}
93
94impl InternalLower for Composite {
95    fn lower(&self, cx: &mut InternalLoweringCx) -> WidgetId {
96        let id = self.id.map(Into::into).unwrap_or_else(|| cx.next_node_id());
97
98        cx.push_scope(id);
99        let child_id = self.child.lower(cx);
100        cx.pop_scope();
101
102        let mut hasher = std::collections::hash_map::DefaultHasher::new();
103        id.hash(&mut hasher);
104        self.style.hash(&mut hasher);
105        let stable_hash = hasher.finish();
106
107        let mut builder =
108            InternalIrBuilder::new(id, Op::Structural(StructuralOp::Group { stable_hash }))
109                .composite(self.style.clone());
110        builder.add_child(child_id);
111        builder.build(cx)
112    }
113}
fission_core/ui/widgets/composite.rs

fission_core/ui/widgets/
composite.rs
