bendns' repos / psvg
the aliasing svg renderer
Diffstat (limited to 'src/main.rs')
-rw-r--r--src/main.rs53
1 files changed, 53 insertions, 0 deletions
diff --git a/src/main.rs b/src/main.rs
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+++ b/src/main.rs
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+use std::{path::PathBuf, str::FromStr};
+
+use anyhow::{anyhow, Result};
+use clap::Parser;
+use psvg::tree::Tree;
+
+#[derive(Parser)]
+
+/// PSVG: the curveless aliasing svg renderer
+struct Args {
+ #[arg(short = 's')]
+ /// Specify the size of the output png.
+ /// If not supplied, will render at the svg's set width and height.
+ /// Specify as: '144x124'
+ size: Option<Size>,
+ /// Svg to render.
+ file: PathBuf,
+ /// File to output rendered svg (png).
+ out: PathBuf,
+}
+
+#[derive(Copy, Clone, Debug, Default)]
+struct Size {
+ w: u32,
+ h: u32,
+}
+
+impl FromStr for Size {
+ type Err = anyhow::Error;
+
+ fn from_str(s: &str) -> Result<Self, Self::Err> {
+ let (w, h) = s.split_once('x').ok_or(anyhow!(
+ "please delimit width and height witih a 'x': 128x142"
+ ))?;
+ Ok(Size {
+ w: w.parse()?,
+ h: h.parse()?,
+ })
+ }
+}
+
+fn main() -> Result<()> {
+ let args = Args::parse();
+ let mut svg = Tree::new(&std::fs::read_to_string(args.file)?)?;
+ match args.size {
+ Some(Size { w, h }) => {
+ svg.resize(w as f32, h as f32);
+ }
+ None => svg.resize(svg.osize.width(), svg.osize.height()),
+ }
+ svg.render().save(args.out);
+ Ok(())
+}