Feat: correct colors and add text

src/color.rs

@@ -60,6 +60,18 @@ 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

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

src/polygon.rs

@@ -1,17 +1,24 @@
 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,
-    side_length: f64,
+    radius: 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;
@@ -23,41 +30,18 @@ fn calculate_polygon_corners(
     corners
 }
 
-fn set_color_i8((r, g, b): (u8, u8, u8), context: &Context) {
-    context.set_source_rgb(r as f64 / 255.0, g as f64 / 255.0, b as f64 / 255.0);
+fn set_color(color: Color, context: &Context) {
+    context.set_source_rgb(
+        color.r as f64 / 255.0,
+        color.g as f64 / 255.0,
+        color.b as f64 / 255.0,
+    );
 }
 
-fn generate_color(
-    rng: &mut ThreadRng,
-    dark_mode: bool,
-    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
+fn generate_colors(rng: &mut ThreadRng) -> (Color, Color) {
+    let color_num = rng.gen_range(0..COLORS.len());
+    let (c1, c2) = COLORS[color_num];
+    (Color::from_hex(c1), Color::from_hex(c2))
 }
 
 pub fn draw_polygon(
@@ -65,11 +49,10 @@ 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_color(&mut rng, dark_mode, None);
-    set_color_i8(c1, context);
+    let (c1, _) = generate_colors(&mut rng);
+    set_color(c1, context);
     context.new_path();
 
     let corners = calculate_polygon_corners(center, num_sides, side_length, 30.0);
@@ -89,11 +72,10 @@ 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 = generate_color(&mut rng, dark_mode, None);
-    set_color_i8(c1, context);
+    let (c1, c2) = generate_colors(&mut rng);
+    set_color(c1, context);
     context.new_path();
 
     let corners = calculate_polygon_corners(center, num_sides, side_length, 30.0);
@@ -112,8 +94,7 @@ pub fn draw_segmented_polygon(
     context.close_path();
     context.fill()?;
 
-    let c2 = generate_color(&mut rng, dark_mode, Some(c1));
-    set_color_i8(c2, context);
+    set_color(c2, context);
     context.new_path();
     // draw other side
     for i in to_corner..(from_corner + 1 + 6) {
@@ -129,28 +110,27 @@ pub fn draw_segmented_polygon(
 
 pub fn draw_polygon_of_segmented_polygons(
     center: (f64, f64),
-    side_length: f64,
+    radius: f64,
+    inner_radius: f64,
     num_sides: i32,
     context: &Context,
-    dark_mode: bool,
 ) -> Result<(), cairo::Error> {
-    let corners = calculate_polygon_corners(center, num_sides, side_length, 0.0);
+    let corners = calculate_polygon_corners(center, num_sides, radius, 0.0);
     for corner in corners {
-        draw_segmented_polygon(corner, side_length * 0.4, num_sides, &context, dark_mode)?;
+        draw_segmented_polygon(corner, inner_radius, num_sides, &context)?;
     }
     Ok(())
 }
 
 pub fn draw_polygon_of_polygons(
     center: (f64, f64),
-    side_length: f64,
+    radius: f64,
     num_sides: i32,
     context: &Context,
-    dark_mode: bool,
 ) -> Result<(), cairo::Error> {
-    let corners = calculate_polygon_corners(center, num_sides, side_length, 0.0);
+    let corners = calculate_polygon_corners(center, num_sides, radius, 0.0);
     for corner in corners {
-        draw_polygon(corner, side_length * 0.4, num_sides, &context, dark_mode)?;
+        draw_polygon(corner, radius * 0.4, num_sides, &context)?;
     }
     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, false).unwrap();
+    polygon::draw_polygon_of_polygons((50.0, 50.0), 65.0, 6, &context).unwrap();
 
     let mut data: Vec<u8> = Vec::new();
     surface.write_to_png(&mut data).unwrap();

src/routes/logo.rs

@@ -1,5 +1,6 @@
 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};
@@ -29,11 +30,33 @@ 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 = ImageSurface::create(Format::ARgb32, 400, 400).unwrap();
+    let (surface, logo_coordinates) = get_surface_and_logo_coordiates(&properties);
     let context = Context::new(&surface).unwrap();
 
     if let Some(c) = properties.background_color {
@@ -44,13 +67,7 @@ async fn handler(Query(properties): Query<ImageProperties>) -> impl axum::respon
 
     context.paint().unwrap();
 
-    polygon::draw_polygon_of_segmented_polygons(
-        (200.0, 200.0),
-        200.0,
-        6,
-        &context,
-        properties.dark_mode,
-    )
+    polygon::draw_polygon_of_segmented_polygons(logo_coordinates, 148.0, 67.0, 6, &context)
         .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 = "static"]
+#[folder = "web"]
 struct StaticFiles;
 
 async fn static_files(uri: Uri) -> impl IntoResponse {

web/index.html

@@ -26,8 +26,11 @@
     <main class="container">
         <nav>
             <ul>
-                <li><img src="logo" style="height: 50px" class="light-only" /> <img src="logo?dark_mode=true"
-                        style="height: 50px" class="dark-only" /> <strong>MakerLab Murnau Logo generator</strong></li>
+                <li>
+                    <img src="logo?dark_mode=false&text=false" style="height: 50px" class="light-only" />
+                    <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>
@@ -48,6 +51,10 @@
                         </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