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fix: Clean up transparency background handling, apply linting and formatting

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azy 2025-02-18 17:24:12 +08:00
parent f8e0128d5e
commit 0e00a23f6c
1 changed files with 17 additions and 27 deletions
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44
television/utils/image.rs
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@ -108,33 +108,8 @@ pub fn convert_pixel_to_span<'a>(
let color_up = color_up.0;
let color_down = color_down.0;
let color_up = if color_up[3] != 255 {
// choose the good color for the background if transparent
if (position.0 + position.1 * 2) % 2 == 0 {
let mut white = WHITE.clone();
white.blend(&Rgba::from(color_up));
white
} else {
let mut gray = GRAY.clone();
gray.blend(&Rgba::from(color_up));
gray
}
} else {
Rgba::from(color_up)
};
let color_down = if color_down[3] != 255 {
if (position.0 + position.1 * 2 + 1) % 2 == 0 {
let mut white = WHITE.clone();
white.blend(&Rgba::from(color_down));
white
} else {
let mut gray = GRAY.clone();
gray.blend(&Rgba::from(color_down));
gray
}
} else {
Rgba::from(color_down)
};
let color_up = blend_with_background(color_up, position, 0);
let color_down = blend_with_background(color_down, position, 1);
let color_up = convert_image_color_to_ratatui_color(color_up);
let color_down = convert_image_color_to_ratatui_color(color_down);
@ -143,6 +118,21 @@ pub fn convert_pixel_to_span<'a>(
Span::styled(String::from(PIXEL), style)
}
fn blend_with_background(
color: impl Into<Rgba<u8>>,
position: (usize, usize),
offset: usize,
) -> Rgba<u8> {
let color = color.into();
if color[3] == 255 {
color
} else {
let is_white = (position.0 + position.1 * 2 + offset) % 2 == 0;
let mut base = if is_white { WHITE } else { GRAY };
base.blend(&color);
base
}
}
fn convert_image_color_to_ratatui_color(color: Rgba<u8>) -> Color {
Color::Rgb(color[0], color[1], color[2])
}