usls 0.1.11

A Rust library integrated with ONNXRuntime, providing a collection of ML models.
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
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
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201

use anyhow::Result;
use image::RgbaImage;

use crate::{DrawContext, Drawable, Prob, ProbStyle, TextLoc};

impl Drawable for [Prob] {
    fn draw(&self, ctx: &DrawContext, canvas: &mut RgbaImage) -> Result<()> {
        let default_style = ProbStyle::default();
        let style = ctx.prob_style.unwrap_or(&default_style);

        let mut renderer = ProbTextRenderer::new(canvas);
        for prob in self.iter() {
            renderer.render_text(ctx, canvas, prob, style)?;
        }

        Ok(())
    }
}

impl Drawable for Prob {
    fn draw(&self, ctx: &DrawContext, canvas: &mut RgbaImage) -> Result<()> {
        let default_style = ProbStyle::default();
        let style = self.style().or(ctx.prob_style).unwrap_or(&default_style);

        let mut renderer = ProbTextRenderer::new(canvas);
        renderer.render_text(ctx, canvas, self, style)
    }
}

struct ProbTextRenderer {
    height_acc: [f32; 2], // [top_left, top_right]
    canvas_dims: (f32, f32),
}

impl ProbTextRenderer {
    fn new(canvas: &RgbaImage) -> Self {
        Self {
            height_acc: [0.0, 0.0],
            canvas_dims: (canvas.width() as f32, canvas.height() as f32),
        }
    }

    fn render_text(
        &mut self,
        ctx: &DrawContext,
        canvas: &mut RgbaImage,
        prob: &Prob,
        style: &ProbStyle,
    ) -> Result<()> {
        let text_style = style.text_style();
        if !text_style.should_draw() {
            return Ok(());
        }

        let colors = ctx.resolve_prob_colors(style, prob.id());
        let label = prob.meta().label(
            text_style.id(),
            text_style.name(),
            text_style.confidence(),
            text_style.decimal_places(),
        );

        let rx = style.text_x_pos();
        let ry = style.text_y_pos();

        // Use box_size for proper positioning with TextStyleMode
        let text_mode = *text_style.mode();
        let font_size = text_style.font_size();
        let (bw, bh) = ctx
            .text_renderer
            .box_size_with(&label, &text_mode, font_size)?;
        let (bw, bh) = (bw as f32, bh as f32);

        // Calculate total height including outline thickness (drawn outside the box)
        let outline_extra = if text_style.draw_outline() {
            text_style.thickness() as f32 * 2.0 // outline is on both top and bottom
        } else {
            0.0
        };
        let total_h = bh + outline_extra;

        let (x, y) = match *text_style.loc() {
            TextLoc::InnerTopLeft => {
                let x = self.canvas_dims.0 * rx;
                self.height_acc[0] += total_h;
                let y = self.canvas_dims.1 * ry + self.height_acc[0];
                (x, y)
            }
            TextLoc::InnerTopRight => {
                let x = self.canvas_dims.0 * (1.0 - rx) - bw;
                self.height_acc[1] += total_h;
                let y = self.canvas_dims.1 * ry + self.height_acc[1];
                (x, y)
            }
            TextLoc::InnerTopCenter => {
                let x = (self.canvas_dims.0 - bw) / 2.0;
                self.height_acc[0] += total_h;
                let y = self.canvas_dims.1 * ry + self.height_acc[0];
                (x, y)
            }
            TextLoc::InnerBottomLeft => {
                let x = self.canvas_dims.0 * rx;
                self.height_acc[0] += total_h;
                let y = self.canvas_dims.1 * (1.0 - ry) - self.height_acc[0];
                (x, y)
            }
            TextLoc::InnerBottomRight => {
                let x = self.canvas_dims.0 * (1.0 - rx) - bw;
                self.height_acc[1] += total_h;
                let y = self.canvas_dims.1 * (1.0 - ry) - self.height_acc[1];
                (x, y)
            }
            TextLoc::InnerBottomCenter => {
                let x = (self.canvas_dims.0 - bw) / 2.0;
                self.height_acc[0] += total_h;
                let y = self.canvas_dims.1 * (1.0 - ry) - self.height_acc[0];
                (x, y)
            }
            TextLoc::Center => {
                let x = (self.canvas_dims.0 - bw) / 2.0;
                let y = (self.canvas_dims.1 - bh) / 2.0;
                (x, y)
            }
            // Center Left/Right positions
            TextLoc::InnerCenterLeft => {
                let x = self.canvas_dims.0 * rx;
                let y = (self.canvas_dims.1 - bh) / 2.0;
                (x, y)
            }
            TextLoc::InnerCenterRight => {
                let x = self.canvas_dims.0 * (1.0 - rx) - bw;
                let y = (self.canvas_dims.1 - bh) / 2.0;
                (x, y)
            }
            TextLoc::OuterCenterLeft => {
                let x = self.canvas_dims.0 * rx;
                let y = (self.canvas_dims.1 - bh) / 2.0;
                (x, y)
            }
            TextLoc::OuterCenterRight => {
                let x = self.canvas_dims.0 * (1.0 - rx) - bw;
                let y = (self.canvas_dims.1 - bh) / 2.0;
                (x, y)
            }
            // Outer bottom positions
            TextLoc::OuterBottomLeft => {
                let x = self.canvas_dims.0 * rx;
                self.height_acc[0] += total_h;
                let y = self.canvas_dims.1 * (1.0 - ry) - self.height_acc[0];
                (x, y)
            }
            TextLoc::OuterBottomRight => {
                let x = self.canvas_dims.0 * (1.0 - rx) - bw;
                self.height_acc[1] += total_h;
                let y = self.canvas_dims.1 * (1.0 - ry) - self.height_acc[1];
                (x, y)
            }
            TextLoc::OuterBottomCenter => {
                let x = (self.canvas_dims.0 - bw) / 2.0;
                self.height_acc[0] += total_h;
                let y = self.canvas_dims.1 * (1.0 - ry) - self.height_acc[0];
                (x, y)
            }
            // Outer positions fall back to inner equivalents for Prob
            TextLoc::OuterTopLeft => {
                let x = self.canvas_dims.0 * rx;
                self.height_acc[0] += total_h;
                let y = self.canvas_dims.1 * ry + self.height_acc[0];
                (x, y)
            }
            TextLoc::OuterTopRight => {
                let x = self.canvas_dims.0 * (1.0 - rx) - bw;
                self.height_acc[1] += total_h;
                let y = self.canvas_dims.1 * ry + self.height_acc[1];
                (x, y)
            }
            TextLoc::OuterTopCenter => {
                let x = (self.canvas_dims.0 - bw) / 2.0;
                self.height_acc[0] += total_h;
                let y = self.canvas_dims.1 * ry + self.height_acc[0];
                (x, y)
            }
        };

        let text_thickness = text_style.thickness();
        ctx.text_renderer.render_styled_with(
            canvas,
            &label,
            x,
            y,
            colors.text,
            colors.text_bg_fill,
            colors.text_bg_outline,
            text_mode,
            text_style.draw_fill(),
            text_style.draw_outline(),
            text_thickness,
            font_size,
        )
    }
}