28 lines
843 B
Rust
28 lines
843 B
Rust
use crate::qr::QrCode;
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/// 终端 ASCII 渲染：██ 表示暗模块，" " 表示亮模块
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pub fn render_ascii(qr: &QrCode, invert: bool) -> String {
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let size = qr.size() as usize;
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let margin = qr.margin as usize;
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let total = size + 2 * margin;
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let dark_char = if invert { " " } else { "██" };
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let light_char = if invert { "██" } else { " " };
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let mut result = String::new();
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for y in 0..total {
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for x in 0..total {
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let mx = x.saturating_sub(margin);
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let my = y.saturating_sub(margin);
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let is_dark = if mx < size && my < size {
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qr.modules()[my][mx]
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} else {
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false
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};
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result.push_str(if is_dark { dark_char } else { light_char });
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}
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result.push('\n');
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}
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result
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}
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