cairo backend for resvg

resvg backend implementation using the [cairo] library.

Build

This backend uses the gtk-rs project.

Building on Linux should work out of the box, but others OS'es are more complex.

Note: we are not using the gdk-pixbuf crate for raster images, because it's way too heavy.

on Windows using MSYS2

Install stable-x86_64-pc-windows-gnu [Rust] target.

Build using the MSYS2 shell:

```sh pacman -S mingw-w64-x8664-cairo rustup default stable-x8664-pc-windows-gnu

cargo build --release ```

You can use i686 target in the same way.

on Linux

Install cairo and harfbuzz using your distributive's package manager.

On Ubuntu you can install them via:

sudo apt install libcairo2-dev libharfbuzz-dev

Build resvg:

sh cargo build --release

on macOS

Using homebrew:

```sh brew install cairo

cargo build --release ```

Runtime dependencies

resvg-cairo depends only on cairo. pango is not required.

On Linux, harfbuzz is also required.

Running resvg CLI

sh cargo run --release -- in.svg out.png

The resulting binary can be found at: target/release/resvg-cairo

Running examples

A simple SVG to PNG converter:

sh cargo run --example minimal -- in.svg out.png

Render image using a manually constructed SVG render tree:

sh cargo run --example custom_rtree

Draw bounding boxes around all shapes on input SVG:

sh cargo run --example draw_bboxes -- bboxes.svg bboxes.png -z 4

License

MPLv2.0.