Adds edge cropping

Author: locks

src/lib.rs

@@ -2,9 +2,11 @@ pub mod checksum;
 pub mod emblem;
 
 extern crate chrono;
+extern crate image;
 
 
 use chrono::*;
+use image::GenericImage;
 
 
 pub fn short_name(seconds: f64) -> String {
@@ -31,3 +33,13 @@ pub fn seconds_since_2000(now: chrono::datetime::DateTime<UTC>) -> f64 {
         None => panic!("No microseconds!")
     }
 }
+
+pub fn crop_image(img: &mut image::DynamicImage) {
+    for i in (0..64) {
+        (*img).put_pixel( i,  0, image::Rgba([0u8, 0u8, 0u8, 0u8]));
+        (*img).put_pixel( i, 63, image::Rgba([0u8, 0u8, 0u8, 0u8]));
+        (*img).put_pixel( 0,  i, image::Rgba([0u8, 0u8, 0u8, 0u8]));
+        (*img).put_pixel(63,  i, image::Rgba([0u8, 0u8, 0u8, 0u8]));
+    }
+}
+

src/main.rs

@@ -21,6 +21,10 @@ fn main() {
              .help("Sets the input file to use")
              .required(true)
              .index(1))
+        .arg(Arg::with_name("crop-edges")
+            .short("c")
+            .long("--crop-edges")
+            .help("Crops the edges"))
         .arg(Arg::with_name("emblem-filename")
             .help("Specify a custom emblem filename to put in place of the default timestamp."))
         .subcommand(SubCommand::new("test")
@@ -47,9 +51,13 @@ fn main() {
     let short_name = image2emblem::short_name(seconds_since_2000);
     let full_name = image2emblem::full_name(&short_name);
 
-    let img64 = img.crop(0, 0, 64, 64);
+    let mut img64 = img.crop(0, 0, 64, 64);
     let img32 = img64.resize(32, 32, image::FilterType::Lanczos3);
 
+    if matches.is_present("crop-edges") {
+        image2emblem::crop_image(&mut img64);
+    }
+
     emblem.set_filename(short_name);
     emblem.set_timestamp(seconds_since_2000 as u32);
     let comment = format!("{} (Created using Rust awesomeness)", now.format("%y/%m/%d %H:%M"));