Export jpeg at 95 quality

Cargo.lock

@@ -29,6 +29,12 @@ dependencies = [
  "memchr",
 ]
 
+[[package]]
+name = "anyhow"
+version = "1.0.55"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "159bb86af3a200e19a068f4224eae4c8bb2d0fa054c7e5d1cacd5cef95e684cd"
+
 [[package]]
 name = "atty"
 version = "0.2.14"
@@ -641,6 +647,7 @@ dependencies = [
  "serde_json",
  "simplelog",
  "textwrap",
+ "turbojpeg",
  "webbrowser",
 ]
 
@@ -932,6 +939,26 @@ dependencies = [
  "unicode-width",
 ]
 
+[[package]]
+name = "thiserror"
+version = "1.0.30"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "854babe52e4df1653706b98fcfc05843010039b406875930a70e4d9644e5c417"
+dependencies = [
+ "thiserror-impl",
+]
+
+[[package]]
+name = "thiserror-impl"
+version = "1.0.30"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "aa32fd3f627f367fe16f893e2597ae3c05020f8bba2666a4e6ea73d377e5714b"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "tiff"
 version = "0.6.1"
@@ -959,6 +986,28 @@ version = "0.6.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3e5d7cd7ab3e47dda6e56542f4bbf3824c15234958c6e1bd6aaa347e93499fdc"
 
+[[package]]
+name = "turbojpeg"
+version = "0.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "111671fdf720903270c8c19fd641048793a4f8f69abc184e4e7ea9228619c65e"
+dependencies = [
+ "image",
+ "libc",
+ "thiserror",
+ "turbojpeg-sys",
+]
+
+[[package]]
+name = "turbojpeg-sys"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "03ee42589a950ef4f0f03752c3878676ffe6ab5a468132784ba483b0efc257e6"
+dependencies = [
+ "anyhow",
+ "libc",
+]
+
 [[package]]
 name = "unicode-linebreak"
 version = "0.1.2"

Cargo.toml

@@ -17,6 +17,7 @@ simplelog = "0.11"
 fltk = "1.2"
 fltk-theme = "0.4"
 image = "0.23"
+turbojpeg = { version = "^0.2", features = ["image"] }
 imageproc = "0.22"
 rusttype = "0.9"
 serde_json = "1.0"

src/config_window.rs

@@ -188,7 +188,7 @@ impl ConfigWindow {
         let mut label = Frame::default().with_label("Ratio of size of text:");
         label.set_label_font(enums::Font::HelveticaBold);
         col.set_size(&label, 15);
-        let mut hint = Frame::default().with_label("Font size in image of resolution 4000x5000");
+        let mut hint = Frame::default().with_label("Font size in image of height 4000 pixels");
         hint.set_label_font(Font::CourierItalic);
         hint.set_label_size(12);
         col.set_size(&hint, 20);

src/main.rs

@@ -17,7 +17,7 @@
 extern crate log;
 extern crate simplelog;
 
-mod about;
+mod about_window;
 mod config;
 mod config_picker;
 mod config_window;

src/main_window.rs

@@ -13,7 +13,7 @@
 */
 
 //! Main window where you do all editing
-use crate::about::About;
+use crate::about_window::About;
 use crate::crop_window::CropWindow;
 use crate::draw_thread::*;
 use crate::utils;

src/utils.rs

@@ -192,7 +192,7 @@ impl ImageContainer {
         let path_properties = path_original.with_extension("prop");
         let export = path_original.parent().unwrap().join("export").join(
             path_original
-                .with_extension("png")
+                .with_extension("jpg")
                 .file_name()
                 .unwrap()
                 .to_str()
@@ -236,9 +236,18 @@ impl ImageContainer {
             prop.original_dimension.1,
         );
 
-        if let Err(e) = img.save_with_format(&export, image::ImageFormat::Png) {
+        let comp = match turbojpeg::compress_image(&img.into_rgb8(), 95, turbojpeg::Subsamp::None) {
-            dialog::alert_default("Failed to export png!");
+            Ok(a) => a,
-            warn!("Failed to export png!\n{:?}", e);
+            Err(e) => {
+                dialog::alert_default("Failed to compress jpeg!");
+                warn!("Failed to compress jpeg!\n{:?}", e);
+                return;
+            }
+        };
+
+        if let Err(e) = std::fs::write(&export, comp) {
+            dialog::alert_default("Failed to export Image!");
+            warn!("Failed to export Image!\n{:?}", e);
         }
     }
 
@@ -290,7 +299,7 @@ impl ImageContainer {
         let path_properties = path_original.with_extension("prop");
         let export = path_original.parent().unwrap().join("export").join(
             path_original
-                .with_extension("png")
+                .with_extension("jpg")
                 .file_name()
                 .unwrap()
                 .to_str()