plotters-dioxus 0.2.2

A plotters-rs component for dioxus
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
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158

#![allow(non_snake_case)]

use dioxus::prelude::*;

use plotters_bitmap::BitMapBackend;

use plotters::prelude::*;
use plotters::coord::Shift;

use base64::prelude::*;

use image::ImageEncoder;
use image::codecs::png::PngEncoder;

use std::io::Cursor;

pub type DioxusDrawingArea<'a> = DrawingArea<BitMapBackend<'a>, Shift>;

#[derive(Props)]
pub struct PlottersProps<'a, F: Fn(DioxusDrawingArea)> {
    pub size: (u32, u32),
    pub init: F,
    pub on_click: Option<EventHandler<'a, Event<MouseData>>>,
    pub on_dblclick: Option<EventHandler<'a, Event<MouseData>>>,
    pub on_mousemove: Option<EventHandler<'a, Event<MouseData>>>,
    pub on_mouseout: Option<EventHandler<'a, Event<MouseData>>>,
    pub on_mouseup: Option<EventHandler<'a, Event<MouseData>>>,
    pub on_mousedown: Option<EventHandler<'a, Event<MouseData>>>,
    pub on_mouseover: Option<EventHandler<'a, Event<MouseData>>>,
    pub on_wheel: Option<EventHandler<'a, Event<WheelData>>>,
    #[props(default = false)]
    pub draggable: bool,
    pub on_drag: Option<EventHandler<'a, Event<DragData>>>,
    pub on_dragend: Option<EventHandler<'a, Event<DragData>>>,
    pub on_dragenter: Option<EventHandler<'a, Event<DragData>>>,
    pub on_dragleave: Option<EventHandler<'a, Event<DragData>>>,
    pub on_dragover: Option<EventHandler<'a, Event<DragData>>>,
    pub on_dragstart: Option<EventHandler<'a, Event<DragData>>>,
    pub on_drop: Option<EventHandler<'a, Event<DragData>>>,
    pub on_scroll: Option<EventHandler<'a, Event<ScrollData>>>,
}

impl<'a, F: Fn(DioxusDrawingArea)> PartialEq for PlottersProps<'a, F> {
    fn eq(&self, other: &PlottersProps<F>) -> bool {
        self.size == other.size
    }
}

pub fn Plotters<'a, F: Fn(DioxusDrawingArea)>(cx: Scope<'a, PlottersProps<'a, F>>) -> Element<'a> {
    let buffer_size = ((cx.props.size.1 * cx.props.size.0) as usize) * 3usize;
    let mut buffer = vec![0u8; buffer_size];
    let drawing_area = BitMapBackend::with_buffer(
        buffer.as_mut_slice(),
        cx.props.size
    ).into_drawing_area();
    (cx.props.init)(drawing_area);

    let mut data = vec![0; 0];
    let cursor = Cursor::new(&mut data);
    let encoder = PngEncoder::new(cursor);
    let color = image::ColorType::Rgb8;

    encoder
        .write_image(buffer.as_slice(), cx.props.size.0, cx.props.size.1, color)
        .expect("The Png encoder is expected to write the image");

    let buffer_base64 = BASE64_STANDARD.encode(data);

    render!(img {
        onclick: |e| {
            if let Some(callback) = cx.props.on_click.as_ref() {
                callback.call(e)
            };
        },
        ondblclick: |e| {
            if let Some(callback) = cx.props.on_dblclick.as_ref() {
                callback.call(e)
            };
        },
        onmousemove: |e| {
            if let Some(callback) = cx.props.on_mousemove.as_ref() {
                callback.call(e)
            };
        },
        onmousedown: |e| {
            if let Some(callback) = cx.props.on_mousedown.as_ref() {
                callback.call(e)
            };
        },
        onmouseup: |e| {
            if let Some(callback) = cx.props.on_mouseup.as_ref() {
                callback.call(e)
            };
        },
        onmouseout: |e| {
            if let Some(callback) = cx.props.on_mouseout.as_ref() {
                callback.call(e)
            };
        },
        onmouseover: |e| {
            if let Some(callback) = cx.props.on_mouseout.as_ref() {
                callback.call(e)
            };
        },
        onwheel: |e| {
            if let Some(callback) = cx.props.on_wheel.as_ref() {
                callback.call(e)
            };
        },
        onwheel: |e| {
            if let Some(callback) = cx.props.on_wheel.as_ref() {
                callback.call(e)
            };
        },
        draggable: cx.props.draggable,
        ondrag: |e| {
            if let Some(callback) = cx.props.on_drag.as_ref() {
                callback.call(e)
            };
        },
        ondragend: |e| {
            if let Some(callback) = cx.props.on_dragend.as_ref() {
                callback.call(e)
            };
        },
        ondragenter: |e| {
            if let Some(callback) = cx.props.on_dragenter.as_ref() {
                callback.call(e)
            };
        },
        ondragleave: |e| {
            if let Some(callback) = cx.props.on_dragleave.as_ref() {
                callback.call(e)
            };
        },
        ondragover: |e| {
            if let Some(callback) = cx.props.on_dragover.as_ref() {
                callback.call(e)
            };
        },
        ondragstart: |e| {
            if let Some(callback) = cx.props.on_dragstart.as_ref() {
                callback.call(e)
            };
        },
        ondrop: |e| {
            if let Some(callback) = cx.props.on_drop.as_ref() {
                callback.call(e)
            };
        },
        onscroll: |e| {
            if let Some(callback) = cx.props.on_scroll.as_ref() {
                callback.call(e)
            };
        },
        src: "data:image/png;base64,{buffer_base64}",
    })
}