darkly 0.5.0

A GPU-native paint engine on wgpu: brushes, layers, blend modes, masks, selections, and undo.
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79

//! Floating content (paste/transform) lifecycle + queries.

use serde::Deserialize;
use serde_json::json;

use crate::engine::protocol::{decode, layer_id, RequestRegistration, Response};

pub fn registrations() -> Vec<RequestRegistration> {
    vec![
        RequestRegistration {
            kind: "update_floating_matrix",
            handle: |engine, payload, _b| {
                #[derive(Deserialize)]
                struct Req {
                    matrix: [f32; 6],
                }
                let r: Req = decode(payload)?;
                engine.update_floating_matrix(r.matrix);
                Ok(Response::empty())
            },
        },
        RequestRegistration {
            kind: "commit_floating",
            handle: |engine, _payload, _b| {
                engine.commit_floating();
                Ok(Response::empty())
            },
        },
        RequestRegistration {
            kind: "cancel_floating",
            handle: |engine, _payload, _b| {
                engine.cancel_floating();
                Ok(Response::empty())
            },
        },
        RequestRegistration {
            kind: "paste_in_place_floating",
            handle: |engine, payload, _b| {
                let ok = engine.paste_in_place_floating(layer_id(payload)?);
                Ok(Response::json(json!({ "ok": ok })))
            },
        },
        RequestRegistration {
            kind: "begin_transform",
            handle: |engine, payload, _b| {
                let ok = engine.begin_transform(layer_id(payload)?);
                Ok(Response::json(json!({ "ok": ok })))
            },
        },
        RequestRegistration {
            kind: "has_floating",
            handle: |engine, _payload, _b| {
                Ok(Response::json(json!({ "value": engine.has_floating() })))
            },
        },
        RequestRegistration {
            kind: "floating_info",
            handle: |engine, _payload, _b| {
                let value = match engine.floating_info() {
                    Some((ox, oy, w, h, m)) => {
                        json!({ "ox": ox, "oy": oy, "w": w, "h": h, "matrix": m })
                    }
                    None => serde_json::Value::Null,
                };
                Ok(Response::json(value))
            },
        },
        RequestRegistration {
            kind: "floating_target_layer",
            handle: |engine, _payload, _b| {
                let id = engine
                    .floating_target_layer()
                    .map(|i| i.to_ffi() as i64)
                    .unwrap_or(-1);
                Ok(Response::json(json!({ "id": id })))
            },
        },
    ]
}