(&self, content: String)
| 37 | } |
| 38 | |
| 39 | pub fn generate(&self, content: String) -> Result<WrappedWand> { |
| 40 | let mut path = self.path(&content); |
| 41 | let missing = !path.exists(); |
| 42 | |
| 43 | if missing { |
| 44 | match self { |
| 45 | ContentType::Math => { |
| 46 | utils::parse_equation(&content, 1.0)?; |
| 47 | }, |
| 48 | ContentType::File => { |
| 49 | return Err(Error::FileNotFound(path)) |
| 50 | }, |
| 51 | ContentType::Tex => { |
| 52 | utils::parse_latex(&content)?; |
| 53 | }, |
| 54 | ContentType::Gnuplot => { |
| 55 | let path = utils::generate_latex_from_gnuplot(&content)?; |
| 56 | utils::generate_svg_from_latex(&path, 1.0)?; |
| 57 | }, |
| 58 | } |
| 59 | } |
| 60 | |
| 61 | // rewrite path if ending as tex or gnuplot file |
| 62 | if *self == ContentType::File { |
| 63 | if path.extension().unwrap() == "tex" { |
| 64 | path = utils::parse_latex_from_file(&path)?; |
| 65 | } |
| 66 | |
| 67 | if path.extension().unwrap() == "plt" { |
| 68 | let new_path = utils::generate_latex_from_gnuplot_file(&path)?; |
| 69 | path = new_path.with_extension("svg"); |
| 70 | } |
| 71 | } |
| 72 | |
| 73 | let wand = MagickWand::new(); |
| 74 | wand.set_resolution(600.0, 600.0).unwrap(); |
| 75 | |
| 76 | wand.read_image(path.to_str().unwrap()) |
| 77 | .map_err(|_| Error::InvalidImage(path.to_str().unwrap().to_string()))?; |
| 78 | |
| 79 | //wand.set_compression_quality(5).unwrap(); |
| 80 | //wand.transform_image_colorspace(ColorspaceType_GRAYColorspace).unwrap(); |
| 81 | //wand.quantize_image(8, ColorspaceType_GRAYColorspace, 0, DitherMethod_NoDitherMethod, 0).unwrap(); |
| 82 | |
| 83 | Ok(WrappedWand(wand)) |
| 84 | } |
| 85 | |
| 86 | pub fn path(&self, content: &str) -> PathBuf { |
| 87 | let id = utils::hash(content); |
no test coverage detected