95 lines
2.4 KiB
Rust
95 lines
2.4 KiB
Rust
/*
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* Copyright 2015 Nathan Fiedler
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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//!
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//! "Safe" wrapper around the low-level bindings to ImageMagick.
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//!
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// Make the Rust bindings compile cleanly, despite being very un-Rust-like
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// wrappers around C code.
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#![allow(dead_code)]
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#![allow(non_upper_case_globals)]
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#![allow(non_camel_case_types)]
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#![allow(non_snake_case)]
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extern crate libc;
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mod bindings;
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/// MagickWand is a Rustic wrapper to the Rust bindings to ImageMagick.
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pub struct MagickWand {
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wand: *mut bindings::MagickWand
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}
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impl MagickWand {
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/// Create a new MagickWand instance. This instance will be properly
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/// cleaned up once it falls out of scope.
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pub fn new() -> MagickWand {
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MagickWand {
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wand: unsafe { bindings::NewMagickWand() }
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}
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}
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// wand-of-rust wrapper around MagickResizeImage
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// pub fn resize_image(&self, width: uint, height: uint,
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// filter: FilterType, blur_factor: f64) {
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// unsafe {
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// bindings::MagickResizeImage(
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// self.wand, width as size_t, height as size_t,
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// filter as c_uint, blur_factor as c_double
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// );
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// }
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// }
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}
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// Automate safe cleanup for MagickWand instances.
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impl Drop for MagickWand {
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/// Clear any exceptions and destroy the magic wand.
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fn drop(&mut self) {
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unsafe {
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bindings::MagickClearException(self.wand);
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bindings::DestroyMagickWand(self.wand);
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}
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}
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}
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/// This function must be called before any other ImageMagick operations
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/// are attempted.
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pub fn magick_wand_genesis() {
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unsafe {
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bindings::MagickWandGenesis();
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}
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}
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/// This function should be called when ImageMagick is no longer needed.
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pub fn magick_wand_terminus() {
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unsafe {
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bindings::MagickWandTerminus();
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}
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}
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#[cfg(test)]
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mod test {
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use super::{MagickWand};
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#[test]
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fn test_new_drop() {
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MagickWand::new();
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}
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}
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