62 lines
2.2 KiB
Rust
62 lines
2.2 KiB
Rust
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// client/src/output/layout.rs
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use super::display::MonitorInfo;
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use tracing::debug;
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#[derive(Clone, Copy, Debug)]
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pub struct Rect { pub x: i32, pub y: i32, pub w: i32, pub h: i32 }
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/// Compute rectangles for N video streams (all 16:9 here).
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pub fn assign_rectangles(
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monitors: &[MonitorInfo],
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streams: &[(&str, i32, i32)], // (name, w, h)
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) -> Vec<Rect> {
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let mut rects = vec![Rect { x:0, y:0, w:0, h:0 }; streams.len()];
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match monitors.len() {
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0 => return rects, // impossible, but keep compiler happy
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1 => {
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// One monitor: side-by-side layout
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let m = &monitors[0].geometry;
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let total_native_width: i32 = streams.iter().map(|(_,w,_)| *w).sum();
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let scale = f64::min(
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m.width() as f64 / total_native_width as f64,
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m.height() as f64 / streams[0].2 as f64,
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);
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debug!("one-monitor scale = {}", scale);
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let mut x = m.x();
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for (idx, &(_, w, h)) in streams.iter().enumerate() {
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let ww = (w as f64 * scale).round() as i32;
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let hh = (h as f64 * scale).round() as i32;
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rects[idx] = Rect { x, y: m.y(), w: ww, h: hh };
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x += ww;
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}
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}
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_ => {
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// ≥2 monitors: map 1-to-1 until we run out
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for (idx, stream) in streams.iter().enumerate() {
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if idx >= monitors.len() { break; }
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let m = &monitors[idx];
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let geom = m.geometry;
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let (w, h) = (stream.1, stream.2);
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let scale = f64::min(
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geom.width() as f64 / w as f64,
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geom.height() as f64 / h as f64,
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);
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debug!("monitor#{idx} scale = {scale}");
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let ww = (w as f64 * scale).round() as i32;
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let hh = (h as f64 * scale).round() as i32;
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let xx = geom.x() + (geom.width() - ww) / 2;
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let yy = geom.y() + (geom.height() - hh) / 2;
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rects[idx] = Rect { x: xx, y: yy, w: ww, h: hh };
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}
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}
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}
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debug!("📐 final rectangles = {:?}", rects);
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rects
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}
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