just let fast_qr handle the mode and version

src/lib.rs

@@ -1,3 +1 @@
-pub mod qr;
 
-pub use qr::Mode;

src/main.rs

@@ -5,13 +5,12 @@ use eframe::egui;
 use egui_extras::RetainedImage;
 use fast_qr::convert::image::ImageBuilder;
 
-use godiva::qr::*;
-
 #[derive(Parser, Debug)]
 #[clap(author, version, trailing_var_arg = true)]
 struct Cli {
     #[clap(long, short, help = "File to expose")]
     pub file: Option<OsString>,
+    #[clap(help = "all remaining arguments treated as a string; ignored if `-f` is given")]
     text: Vec<String>,
 }
 
@@ -42,30 +41,20 @@ fn main() -> Result<(), eframe::Error> {
     eframe::run_native(
         "Show an image with eframe/egui",
         options,
-        Box::new(|_cc| {
-            Box::new(Flasher {
-                content,
-                mode: Mode::Ascii,
-            })
-        }),
+        Box::new(|_cc| Box::new(Flasher { content })),
     )
 }
 
 struct Flasher {
     pub content: Vec<u8>,
-    pub mode: Mode,
 }
 
 impl eframe::App for Flasher {
     fn update(&mut self, ctx: &egui::Context, _frame: &mut eframe::Frame) {
         egui::CentralPanel::default().show(ctx, |ui| {
             let heading_text = String::from_utf8(self.content.clone()).unwrap();
-            let len = heading_text.len();
             ui.heading(heading_text);
-            let size = get_size(len, self.mode);
-            let version = get_version(size, fast_qr::ECL::H);
             let qr = fast_qr::QRBuilder::new(self.content.clone())
-                .version(version)
                 .build()
                 .unwrap();
             let bytes = ImageBuilder::default()

src/qr.rs

@@ -1,38 +0,0 @@
-use fast_qr::ECL;
-
-#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord)]
-pub enum Mode {
-    Ascii,
-    Binary,
-}
-
-pub fn get_size(len: usize, mode: Mode) -> usize {
-    if mode == Mode::Ascii {
-        // alphanumeric mode is only 5.5 bits per character, so 5.5 / 8 = 0.6875
-        (len as f64 * 0.6875).ceil() as usize
-    } else {
-        len
-    }
-}
-
-pub fn get_version(size: usize, ecl: ECL) -> fast_qr::Version {
-    use fast_qr::Version::*;
-    let ecl = match ecl {
-        ECL::L => 0.7,
-        ECL::M => 0.15,
-        ECL::Q => 0.25,
-        ECL::H => 0.30,
-    };
-
-    let size = (size as f64 / ecl) as usize;
-
-    match size {
-        0..=7 => V01,
-        8..=14 => V02,
-        15..=24 => V03,
-        25..=78 => V04,
-
-        //
-        _ => V40,
-    }
-}