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custom powerline triangle glyphs

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refs: #584
This commit is contained in:
Wez Furlong 2021-06-13 22:04:42 -07:00
parent a217f96d6b
commit 1b3df56a91
2 changed files with 189 additions and 37 deletions
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1
test-data/unicode-dump.py Normal file → Executable file
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@ -5,6 +5,7 @@
import argparse
UNICODE_BLOCKS = {
"Powerline": (0xe0b0, 0xe0d4),
"Basic Latin": (0x0000, 0x007F),
"Latin-1 Supplement": (0x0080, 0x00FF),
"Latin Extended-A": (0x0100, 0x017F),

225
wezterm-gui/src/glyphcache.rs
View File

@ -21,7 +21,7 @@ use termwiz::image::ImageData;
use wezterm_font::units::*;
use wezterm_font::{FontConfiguration, GlyphInfo};
use wezterm_term::Underline;
use zeno::{Command, Fill, Format, Mask, PathBuilder};
use zeno::{Command, Fill, Format, Join, Mask, PathBuilder, Stroke, Style};
#[derive(Debug, Clone, PartialEq, Eq, Hash)]
pub struct GlyphKey {
@ -233,11 +233,27 @@ pub enum BlockKey {
/// Filled polygon used to describe the more complex shapes in
/// <https://unicode.org/charts/PDF/U1FB00.pdf>
Poly {
path: &'static [(BlockCoord, BlockCoord)],
paths: &'static [&'static [(BlockCoord, BlockCoord)]],
intensity: BlockAlpha,
style: PolyStyle,
},
}
#[derive(Copy, Clone, PartialEq, Eq, Hash, Debug)]
pub enum PolyStyle {
Fill,
Outline,
}
impl PolyStyle {
fn to_zeno(self, width: f32) -> Style<'static> {
match self {
Self::Fill => Style::default(),
Self::Outline => Style::Stroke(*Stroke::new(width).join(Join::Miter)),
}
}
}
impl BlockKey {
pub fn filter_out_synthetic(glyphs: &mut Vec<char>) {
let config = config::configuration();
@ -361,48 +377,181 @@ impl BlockKey {
),
// LOWER LEFT BLOCK DIAGONAL LOWER MIDDLE LEFT TO LOWER CENTRE
0x1fb3c => Self::Poly {
path: &[
paths: &[&[
(BlockCoord::Zero, BlockCoord::Thirds(2)),
(BlockCoord::Zero, BlockCoord::One),
(BlockCoord::Halves(1), BlockCoord::One),
],
(BlockCoord::Zero, BlockCoord::Thirds(2)),
]],
intensity: BlockAlpha::Full,
style: PolyStyle::Fill,
},
// LOWER LEFT BLOCK DIAGONAL LOWER MIDDLE LEFT TO LOWER RIGHT
0x1fb3d => Self::Poly {
path: &[
paths: &[&[
(BlockCoord::Zero, BlockCoord::Thirds(2)),
(BlockCoord::Zero, BlockCoord::One),
(BlockCoord::One, BlockCoord::One),
],
(BlockCoord::Zero, BlockCoord::Thirds(2)),
]],
intensity: BlockAlpha::Full,
style: PolyStyle::Fill,
},
// LOWER LEFT BLOCK DIAGONAL UPPER MIDDLE LEFT TO LOWER CENTRE
0x1fb3e => Self::Poly {
path: &[
paths: &[&[
(BlockCoord::Zero, BlockCoord::Thirds(1)),
(BlockCoord::Zero, BlockCoord::One),
(BlockCoord::Halves(1), BlockCoord::One),
],
(BlockCoord::Zero, BlockCoord::Thirds(1)),
]],
intensity: BlockAlpha::Full,
style: PolyStyle::Fill,
},
// LOWER LEFT BLOCK DIAGONAL UPPER MIDDLE LEFT TO LOWER RIGHT
0x1fb3f => Self::Poly {
path: &[
paths: &[&[
(BlockCoord::Zero, BlockCoord::Thirds(1)),
(BlockCoord::Zero, BlockCoord::One),
(BlockCoord::One, BlockCoord::One),
],
(BlockCoord::Zero, BlockCoord::Thirds(1)),
]],
intensity: BlockAlpha::Full,
style: PolyStyle::Fill,
},
// LOWER LEFT BLOCK DIAGONAL UPPER LEFT TO LOWER CENTRE
0x1fb40 => Self::Poly {
path: &[
paths: &[&[
(BlockCoord::Zero, BlockCoord::Zero),
(BlockCoord::Zero, BlockCoord::One),
(BlockCoord::Halves(1), BlockCoord::One),
],
(BlockCoord::Zero, BlockCoord::Zero),
]],
intensity: BlockAlpha::Full,
style: PolyStyle::Fill,
},
// Powerline filled right arrow
0xe0b0 => Self::Poly {
paths: &[&[
(BlockCoord::Zero, BlockCoord::Zero),
(BlockCoord::Zero, BlockCoord::One),
(BlockCoord::One, BlockCoord::Halves(1)),
(BlockCoord::Zero, BlockCoord::Zero),
]],
intensity: BlockAlpha::Full,
style: PolyStyle::Fill,
},
// Powerline outline right arrow
0xe0b1 => Self::Poly {
paths: &[&[
(BlockCoord::Zero, BlockCoord::Zero),
(BlockCoord::One, BlockCoord::Halves(1)),
(BlockCoord::Zero, BlockCoord::One),
]],
intensity: BlockAlpha::Full,
style: PolyStyle::Outline,
},
// Powerline filled left arrow
0xe0b2 => Self::Poly {
paths: &[&[
(BlockCoord::One, BlockCoord::Zero),
(BlockCoord::One, BlockCoord::One),
(BlockCoord::Zero, BlockCoord::Halves(1)),
(BlockCoord::One, BlockCoord::Zero),
]],
intensity: BlockAlpha::Full,
style: PolyStyle::Fill,
},
// Powerline outline left arrow
0xe0b3 => Self::Poly {
paths: &[&[
(BlockCoord::One, BlockCoord::Zero),
(BlockCoord::Zero, BlockCoord::Halves(1)),
(BlockCoord::One, BlockCoord::One),
]],
intensity: BlockAlpha::Full,
style: PolyStyle::Outline,
},
// Powerline filled bottom left half triangle
0xe0b8 => Self::Poly {
paths: &[&[
(BlockCoord::Zero, BlockCoord::Zero),
(BlockCoord::One, BlockCoord::One),
(BlockCoord::Zero, BlockCoord::One),
(BlockCoord::Zero, BlockCoord::Zero),
]],
intensity: BlockAlpha::Full,
style: PolyStyle::Fill,
},
// Powerline outline bottom left half triangle
0xe0b9 => Self::Poly {
paths: &[&[
(BlockCoord::Zero, BlockCoord::Zero),
(BlockCoord::One, BlockCoord::One),
]],
intensity: BlockAlpha::Full,
style: PolyStyle::Outline,
},
// Powerline filled bottom right half triangle
0xe0ba => Self::Poly {
paths: &[&[
(BlockCoord::Zero, BlockCoord::One),
(BlockCoord::One, BlockCoord::One),
(BlockCoord::One, BlockCoord::Zero),
(BlockCoord::Zero, BlockCoord::One),
]],
intensity: BlockAlpha::Full,
style: PolyStyle::Fill,
},
// Powerline outline bottom right half triangle
0xe0bb => Self::Poly {
paths: &[&[
(BlockCoord::Zero, BlockCoord::One),
(BlockCoord::One, BlockCoord::Zero),
]],
intensity: BlockAlpha::Full,
style: PolyStyle::Outline,
},
// Powerline filled top left half triangle
0xe0bc => Self::Poly {
paths: &[&[
(BlockCoord::Zero, BlockCoord::Zero),
(BlockCoord::Zero, BlockCoord::One),
(BlockCoord::One, BlockCoord::Zero),
(BlockCoord::Zero, BlockCoord::Zero),
]],
intensity: BlockAlpha::Full,
style: PolyStyle::Fill,
},
// Powerline outline top left half triangle
0xe0bd => Self::Poly {
paths: &[&[
(BlockCoord::Zero, BlockCoord::One),
(BlockCoord::One, BlockCoord::Zero),
]],
intensity: BlockAlpha::Full,
style: PolyStyle::Outline,
},
// Powerline filled top right half triangle
0xe0be => Self::Poly {
paths: &[&[
(BlockCoord::Zero, BlockCoord::Zero),
(BlockCoord::One, BlockCoord::Zero),
(BlockCoord::One, BlockCoord::One),
(BlockCoord::Zero, BlockCoord::Zero),
]],
intensity: BlockAlpha::Full,
style: PolyStyle::Fill,
},
// Powerline outline top right half triangle
0xe0bf => Self::Poly {
paths: &[&[
(BlockCoord::Zero, BlockCoord::Zero),
(BlockCoord::One, BlockCoord::One),
]],
intensity: BlockAlpha::Full,
style: PolyStyle::Outline,
},
_ => return None,
})
@ -1021,35 +1170,37 @@ impl<T: Texture2d> GlyphCache<T> {
);
}
}
BlockKey::Poly { path, intensity } => {
BlockKey::Poly {
paths,
intensity,
style,
} => {
let (width, height) = buffer.image_dimensions();
let path = path
.iter()
.map(|(x, y)| (x.to_pixel(width), y.to_pixel(height)))
.collect::<Vec<_>>();
log::info!("path: {:?}", path);
let mut cmd: Vec<Command> = vec![];
cmd.move_to(path[0]);
for pt in path.iter().skip(1) {
cmd.line_to(*pt);
}
cmd.close();
log::info!("command: {:?}", cmd);
let (alpha, _placement) = Mask::new(&cmd)
.format(Format::Alpha)
.size(width as u32, height as u32)
.style(Fill::NonZero)
.render();
let intensity = intensity.to_scale();
for path in paths {
let path = path
.iter()
.map(|(x, y)| (x.to_pixel(width), y.to_pixel(height)))
.collect::<Vec<_>>();
for (alpha, dest) in alpha.into_iter().zip(buffer.pixels_mut()) {
let alpha = (intensity * (alpha as f32)) as u32;
// If existing pixel was blank, we want to replace it.
// If alpha is blank then we don't want to replace existing non-blank.
*dest |= alpha << 24 | alpha << 16 | alpha << 8 | alpha;
cmd.move_to(path[0]);
for pt in path.iter().skip(1) {
cmd.line_to(*pt);
}
let (alpha, _placement) = Mask::new(&cmd)
.format(Format::Alpha)
.style(style.to_zeno(self.metrics.underline_height as f32))
.size(width as u32, height as u32)
.render();
for (alpha, dest) in alpha.into_iter().zip(buffer.pixels_mut()) {
let alpha = (intensity * (alpha as f32)) as u32;
// If existing pixel was blank, we want to replace it.
// If alpha is blank then we don't want to replace existing non-blank.
*dest |= alpha << 24 | alpha << 16 | alpha << 8 | alpha;
}
}
}
}