3732fd5747
Since build.rs requires MagickWand-config, make an effort to determine if the executable is available or not, and panic with a clear course of action. Otherwise the error is rather cryptic. Fixes #3 cargo test passes
magick-rust
A somewhat safe Rust interface to the ImageMagick system, in particular, the MagickWand library. Many of the functions in the MagickWand API are still missing, and those that are needed will be gradually added.
Dependenices
- Rust
- Cargo
- ImageMagick (version 6 or higher)
See the docs/Development_Setup.md file for details particular to each platform.
Build and Test
Pretty simple for now.
$ cargo build
$ cargo test
Example Usage
MagickWand has some global state that needs to be initialized prior to using the library, but fortunately Rust makes handling this pretty easy. In the example below, we read in an image from a file and resize it to fit a square of 240 by 240 pixels, then convert the image to JPEG.
use magick_rust::{MagickWand, magick_wand_genesis};
use std::sync::{Once, ONCE_INIT};
// Used to make sure MagickWand is initialized exactly once. Note that we
// do not bother shutting down, we simply exit when we're done.
static START: Once = ONCE_INIT;
fn resize() -> Result<Vec<u8>, &'static str> {
START.call_once(|| {
magick_wand_genesis();
});
let wand = MagickWand::new();
try!(wand.read_image("kittens.jpg"));
wand.fit(240, 240);
wand.write_image_blob("jpeg")
}