zng_wgt_size_offset/
actual.rs

1use zng_wgt::prelude::*;
2
3/// Getter property, gets the latest layout widget inner size.
4#[property(WIDGET_INNER - 1)]
5pub fn actual_size(child: impl IntoUiNode, size: impl IntoVar<DipSize>) -> UiNode {
6    let size = size.into_var();
7    match_node(child, move |c, op| {
8        if let UiNodeOp::Layout { wl, final_size } = op {
9            *final_size = c.layout(wl);
10            let f = LAYOUT.scale_factor();
11            // inner size updated in `widget_inner` -> `WidgetLayout::with_inner`
12            let s = WIDGET.bounds().inner_size().to_dip(f);
13            if size.get() != s {
14                // manually check equality here to avoid scheduling a var modify for each layout
15                size.set(s);
16            }
17        }
18    })
19}
20
21/// Getter property, gets the latest layout widget inner width.
22#[property(LAYOUT)]
23pub fn actual_width(child: impl IntoUiNode, width: impl IntoVar<Dip>) -> UiNode {
24    let width = width.into_var();
25    match_node(child, move |c, op| {
26        if let UiNodeOp::Layout { wl, final_size } = op {
27            *final_size = c.layout(wl);
28            let f = LAYOUT.scale_factor();
29            let w = WIDGET.bounds().inner_size().width.to_dip(f);
30            if width.get() != w {
31                width.set(w);
32            }
33        }
34    })
35}
36
37/// Getter property, gets the latest layout widget inner height.
38#[property(LAYOUT)]
39pub fn actual_height(child: impl IntoUiNode, height: impl IntoVar<Dip>) -> UiNode {
40    let height = height.into_var();
41    match_node(child, move |c, op| {
42        if let UiNodeOp::Layout { wl, final_size } = op {
43            *final_size = c.layout(wl);
44            let f = LAYOUT.scale_factor();
45            let h = WIDGET.bounds().inner_size().height.to_dip(f);
46            if height.get() != h {
47                height.set(h);
48            }
49        }
50    })
51}
52
53/// Getter property, gets the latest layout widget inner size, in device pixels.
54#[property(LAYOUT)]
55pub fn actual_size_px(child: impl IntoUiNode, size: impl IntoVar<PxSize>) -> UiNode {
56    let size = size.into_var();
57    match_node(child, move |c, op| {
58        if let UiNodeOp::Layout { wl, final_size } = op {
59            *final_size = c.layout(wl);
60            let s = WIDGET.bounds().inner_size();
61            if size.get() != s {
62                size.set(s);
63            }
64        }
65    })
66}
67
68/// Getter property, gets the latest layout widget inner width, in device pixels.
69#[property(LAYOUT)]
70pub fn actual_width_px(child: impl IntoUiNode, width: impl IntoVar<Px>) -> UiNode {
71    let width = width.into_var();
72    match_node(child, move |c, op| {
73        if let UiNodeOp::Layout { wl, final_size } = op {
74            *final_size = c.layout(wl);
75            let w = WIDGET.bounds().inner_size().width;
76            if width.get() != w {
77                width.set(w);
78            }
79        }
80    })
81}
82
83/// Getter property, gets the latest layout widget inner height, in device pixels.
84#[property(LAYOUT)]
85pub fn actual_height_px(child: impl IntoUiNode, height: impl IntoVar<Px>) -> UiNode {
86    let height = height.into_var();
87    match_node(child, move |c, op| {
88        if let UiNodeOp::Layout { wl, final_size } = op {
89            *final_size = c.layout(wl);
90            let h = WIDGET.bounds().inner_size().height;
91            if height.get() != h {
92                height.set(h);
93            }
94        }
95    })
96}
97
98/// Getter property, gets the latest rendered widget inner transform.
99#[property(LAYOUT)]
100pub fn actual_transform(child: impl IntoUiNode, transform: impl IntoVar<PxTransform>) -> UiNode {
101    let transform = transform.into_var();
102    match_node(child, move |c, op| match &op {
103        UiNodeOp::Render { .. } | UiNodeOp::RenderUpdate { .. } => {
104            c.op(op);
105            let t = WIDGET.info().bounds_info().inner_transform();
106            if transform.get() != t {
107                transform.set(t);
108            }
109        }
110        _ => {}
111    })
112}
113
114/// Getter property, gets the latest rendered widget inner bounds in the window space.
115#[property(LAYOUT)]
116pub fn actual_bounds(child: impl IntoUiNode, bounds: impl IntoVar<PxRect>) -> UiNode {
117    let bounds = bounds.into_var();
118    match_node(child, move |c, op| match &op {
119        UiNodeOp::Render { .. } | UiNodeOp::RenderUpdate { .. } => {
120            c.op(op);
121            let t = WIDGET.info().bounds_info().inner_bounds();
122            if bounds.get() != t {
123                bounds.set(t);
124            }
125        }
126        _ => {}
127    })
128}
zng_wgt_size_offset/actual.rs

zng_wgt_size_offset/
actual.rs
