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87 lines
2.6 KiB
Rust
87 lines
2.6 KiB
Rust
//! pixel-cell example
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//!
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//! Shows how to get the size of a cell in pixels
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//!
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//! It works on the following terminals:
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//! - kitty
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//! - xterm (invoked with `xterm -ti vt340`)
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//! - alacritty (WIP https://github.com/ayosec/alacritty/tree/graphics)
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use rand::{distributions::Uniform, Rng};
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use libnotcurses_sys::*;
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fn main() -> NcResult<()> {
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let mut nc = Notcurses::new()?;
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if !nc.check_pixel_support()? {
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return Err(NcError::new_msg("Current terminal doesn't support pixels."));
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}
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let mut stdplane = nc.stdplane();
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let pg = stdplane.pixelgeom();
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// print visual delimiters around our pixelized cell
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println!("0▗│▖\n│─ ─\n2▝│▘");
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println!("a cell is {}x{} pixels", pg.cell_y, pg.cell_x);
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println!("\nscaled: inflated:");
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// fill the buffer with random color pixels
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let mut rng = rand::thread_rng();
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let range = Uniform::from(50..=180);
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let mut buffer = Vec::<u8>::with_capacity((pg.cell_y * pg.cell_x * 4) as usize);
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#[allow(unused_parens)]
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for _byte in (0..={ pg.cell_y * pg.cell_x }) {
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buffer.push(rng.sample(&range));
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buffer.push(rng.sample(&range));
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buffer.push(rng.sample(&range));
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buffer.push(255);
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}
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// show the newly created ncvisual delimited with the box drawing characters
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let vframe1 = NcVisual::from_rgba(buffer.as_slice(), pg.cell_y, pg.cell_x * 4, pg.cell_x)?;
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let voptions =
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NcVisualOptions::without_plane(1, 2, 0, 0, pg.cell_y, pg.cell_x, NCBLIT_PIXEL, 0, 0);
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vframe1.render(&mut nc, &voptions)?;
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rsleep![&mut nc, 1];
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// show the ncvisual, scaled
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let mut vplane2 = NcPlane::new_bound(&mut stdplane, 6, 2, 4, 4)?;
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let voptions2 = NcVisualOptions::with_plane(
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&mut vplane2,
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NCSCALE_SCALE,
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0,
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0,
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0,
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0,
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pg.cell_y,
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pg.cell_x,
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NCBLIT_PIXEL,
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0,
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0,
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);
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vframe1.render(&mut nc, &voptions2)?;
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rsleep![&mut nc, 1];
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// show the ncvisual, inflated
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let voptions3 =
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NcVisualOptions::without_plane(6, 9, 0, 0, pg.cell_y, pg.cell_x, NCBLIT_PIXEL, 0, 0);
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vframe1.inflate(4)?;
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vframe1.render(&mut nc, &voptions3)?;
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rsleep![&mut nc, 1];
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let vframe4 = NcVisual::from_rgba(buffer.as_slice(), pg.cell_y, pg.cell_x * 4, pg.cell_x)?;
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let _voptions4 =
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NcVisualOptions::without_plane(6, 14, 0, 0, pg.cell_y, pg.cell_x, NCBLIT_PIXEL, 0, 0);
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vframe4.resize(2, 2)?;
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// FIXME: render function fails
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// vframe4.render(&mut nc, &_voptions4)?;
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rsleep![&mut nc, 2];
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vframe1.destroy();
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vframe4.destroy();
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nc.stop()?;
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Ok(())
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}
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