src/color.rs

@@ -60,18 +60,6 @@ where
     Ok(res.unwrap())
 }
 
-impl Color {
-    pub fn from_hex(hex: &str) -> Self {
-        serde_json::from_str(&format!("\"{hex}\"")).unwrap()
-    }
-}
-
-impl From<&str> for Color {
-    fn from(value: &str) -> Self {
-        Color::from_hex(value)
-    }
-}
-
 #[cfg(test)]
 #[test]
 fn test_serialize_color() {

src/main.rs

@@ -1,6 +1,3 @@
-#![feature(const_trait_impl)]
-#![feature(const_convert)]
-
 use axum::Router;
 use std::net::SocketAddr;
 

src/polygon.rs

@@ -1,24 +1,17 @@
 use cairo::Context;
 use rand::{rngs::ThreadRng, Rng};
 
-use crate::color::Color;
-
-static COLORS: [(&str, &str); 3] = [
-    ("#F4A263", "#E87052"),
-    ("#E0DA48", "#969A1D"),
-    ("#309E8F", "#2F3F52"),
-];
-
 fn calculate_polygon_corners(
     center: (f64, f64),
     num_sides: i32,
-    radius: f64,
+    side_length: f64,
     rotation_angle_degrees: f64,
 ) -> Vec<(f64, f64)> {
     // no idea how this code works, it was written by ChatGPT
     let mut corners = Vec::new();
     let rotation_angle = rotation_angle_degrees.to_radians();
     let angle = std::f64::consts::PI / (num_sides as f64);
+    let radius = side_length / (2.0 * angle.cos());
 
     for i in 0..num_sides {
         let vertex_angle = angle * (2.0 * i as f64 + 1.0 - num_sides as f64) + rotation_angle;
@@ -30,18 +23,41 @@ fn calculate_polygon_corners(
     corners
 }
 
-fn set_color(color: Color, context: &Context) {
+fn set_color_i8((r, g, b): (u8, u8, u8), context: &Context) {
-    context.set_source_rgb(
+    context.set_source_rgb(r as f64 / 255.0, g as f64 / 255.0, b as f64 / 255.0);
-        color.r as f64 / 255.0,
-        color.g as f64 / 255.0,
-        color.b as f64 / 255.0,
-    );
 }
 
-fn generate_colors(rng: &mut ThreadRng) -> (Color, Color) {
+fn generate_color(
-    let color_num = rng.gen_range(0..COLORS.len());
+    rng: &mut ThreadRng,
-    let (c1, c2) = COLORS[color_num];
+    dark_mode: bool,
-    (Color::from_hex(c1), Color::from_hex(c2))
+    unlike: Option<(u8, u8, u8)>,
+) -> (u8, u8, u8) {
+    let criteria = |(r, g, b): (u8, u8, u8)| {
+        let r = r as u16;
+        let g = g as u16;
+        let b = b as u16;
+        if dark_mode && (r + g + b) < 300 {
+            return false;
+        } else if !dark_mode && (r + g + b) > 500 {
+            return false;
+        }
+
+        if let Some((r1, g1, b1)) = unlike {
+            if (r.abs_diff(r1 as u16) + g.abs_diff(g1 as u16) + b.abs_diff(b1 as u16)) < 200 {
+                return false;
+            }
+        }
+
+        return true;
+    };
+
+    let mut color = rng.gen();
+
+    while !criteria(color) {
+        color = rng.gen();
+    }
+
+    color
 }
 
 pub fn draw_polygon(
@@ -49,10 +65,11 @@ pub fn draw_polygon(
     side_length: f64,
     num_sides: i32,
     context: &Context,
+    dark_mode: bool,
 ) -> Result<(), cairo::Error> {
     let mut rng = rand::thread_rng();
-    let (c1, _) = generate_colors(&mut rng);
+    let c1 = generate_color(&mut rng, dark_mode, None);
-    set_color(c1, context);
+    set_color_i8(c1, context);
     context.new_path();
 
     let corners = calculate_polygon_corners(center, num_sides, side_length, 30.0);
@@ -72,10 +89,11 @@ pub fn draw_segmented_polygon(
     side_length: f64,
     num_sides: i32,
     context: &Context,
+    dark_mode: bool,
 ) -> Result<(), cairo::Error> {
     let mut rng = rand::thread_rng();
-    let (c1, c2) = generate_colors(&mut rng);
+    let c1 = generate_color(&mut rng, dark_mode, None);
-    set_color(c1, context);
+    set_color_i8(c1, context);
     context.new_path();
 
     let corners = calculate_polygon_corners(center, num_sides, side_length, 30.0);
@@ -94,7 +112,8 @@ pub fn draw_segmented_polygon(
     context.close_path();
     context.fill()?;
 
-    set_color(c2, context);
+    let c2 = generate_color(&mut rng, dark_mode, Some(c1));
+    set_color_i8(c2, context);
     context.new_path();
     // draw other side
     for i in to_corner..(from_corner + 1 + 6) {
@@ -110,27 +129,28 @@ pub fn draw_segmented_polygon(
 
 pub fn draw_polygon_of_segmented_polygons(
     center: (f64, f64),
-    radius: f64,
+    side_length: f64,
-    inner_radius: f64,
     num_sides: i32,
     context: &Context,
+    dark_mode: bool,
 ) -> Result<(), cairo::Error> {
-    let corners = calculate_polygon_corners(center, num_sides, radius, 0.0);
+    let corners = calculate_polygon_corners(center, num_sides, side_length, 0.0);
     for corner in corners {
-        draw_segmented_polygon(corner, inner_radius, num_sides, &context)?;
+        draw_segmented_polygon(corner, side_length * 0.4, num_sides, &context, dark_mode)?;
     }
     Ok(())
 }
 
 pub fn draw_polygon_of_polygons(
     center: (f64, f64),
-    radius: f64,
+    side_length: f64,
     num_sides: i32,
     context: &Context,
+    dark_mode: bool,
 ) -> Result<(), cairo::Error> {
-    let corners = calculate_polygon_corners(center, num_sides, radius, 0.0);
+    let corners = calculate_polygon_corners(center, num_sides, side_length, 0.0);
     for corner in corners {
-        draw_polygon(corner, radius * 0.4, num_sides, &context)?;
+        draw_polygon(corner, side_length * 0.4, num_sides, &context, dark_mode)?;
     }
     Ok(())
 }

src/routes/favicon.rs

@@ -10,7 +10,7 @@ async fn handler() -> impl axum::response::IntoResponse {
     context.set_source_rgba(0.0, 0.0, 0.0, 0.0);
     context.fill().unwrap();
 
-    polygon::draw_polygon_of_polygons((50.0, 50.0), 65.0, 6, &context).unwrap();
+    polygon::draw_polygon_of_polygons((50.0, 50.0), 65.0, 6, &context, false).unwrap();
 
     let mut data: Vec<u8> = Vec::new();
     surface.write_to_png(&mut data).unwrap();

src/routes/logo.rs

@@ -1,6 +1,5 @@
 use axum::{extract::Query, routing::get, Router};
 use cairo::{Context, Format, ImageSurface};
-use rust_embed::RustEmbed;
 use serde::{de, Deserialize};
 
 use crate::{color::Color, polygon, SharedState};
@@ -30,33 +29,11 @@ struct ImageProperties {
     #[serde(default = "default_as_false")]
     #[serde(deserialize_with = "deserialize_bool")]
     dark_mode: bool,
-    #[serde(default = "default_as_false")]
-    #[serde(deserialize_with = "deserialize_bool")]
-    text: bool,
     background_color: Option<Color>,
 }
 
-#[derive(RustEmbed)]
-#[folder = "images"]
-struct ImageFiles;
-
-fn get_surface_and_logo_coordiates(properties: &ImageProperties) -> (ImageSurface, (f64, f64)) {
-    if properties.text {
-        let image = ImageFiles::get("Makerlab.png").unwrap();
-        (
-            ImageSurface::create_from_png(&mut image.data.as_ref()).unwrap(),
-            (604.0, 432.0),
-        )
-    } else {
-        (
-            ImageSurface::create(Format::ARgb32, 400, 400).unwrap(),
-            (200.0, 200.0),
-        )
-    }
-}
-
 async fn handler(Query(properties): Query<ImageProperties>) -> impl axum::response::IntoResponse {
-    let (surface, logo_coordinates) = get_surface_and_logo_coordiates(&properties);
+    let surface = ImageSurface::create(Format::ARgb32, 400, 400).unwrap();
     let context = Context::new(&surface).unwrap();
 
     if let Some(c) = properties.background_color {
@@ -67,7 +44,13 @@ async fn handler(Query(properties): Query<ImageProperties>) -> impl axum::respon
 
     context.paint().unwrap();
 
-    polygon::draw_polygon_of_segmented_polygons(logo_coordinates, 148.0, 67.0, 6, &context)
+    polygon::draw_polygon_of_segmented_polygons(
+        (200.0, 200.0),
+        200.0,
+        6,
+        &context,
+        properties.dark_mode,
+    )
     .unwrap();
 
     let mut data: Vec<u8> = Vec::new();

src/routes/static_files.rs

@@ -9,7 +9,7 @@ use rust_embed::{EmbeddedFile, RustEmbed};
 use crate::SharedState;
 
 #[derive(RustEmbed)]
-#[folder = "web"]
+#[folder = "static"]
 struct StaticFiles;
 
 async fn static_files(uri: Uri) -> impl IntoResponse {

static/index.html

@@ -26,11 +26,8 @@
     <main class="container">
         <nav>
             <ul>
-                <li>
+                <li><img src="logo" style="height: 50px" class="light-only" /> <img src="logo?dark_mode=true"
-                    <img src="logo?dark_mode=false&text=false" style="height: 50px" class="light-only" />
+                        style="height: 50px" class="dark-only" /> <strong>MakerLab Murnau Logo generator</strong></li>
-                    <img src="logo?dark_mode=true&text=false" style="height: 50px" class="dark-only" />
-                    <strong>MakerLab Murnau Logo generator</strong>
-                </li>
             </ul>
             <ul>
                 <li><a href="https://makerlab-murnau.de">MakerLab Website</a></li>
@@ -51,10 +48,6 @@
                         </label>
                         <input type="color" id="logo_background_color" name="background_color" value="">
                     </div>
-                    <label for="logo_text">
-                        <input type="checkbox" id="logo_text" name="text" role="switch">
-                        Add text
-                    </label>
                     <label for="logo_dark_mode">
                         <input type="checkbox" id="logo_dark_mode" name="dark_mode" role="switch">
                         Dark mode