Re-initialize app using vite.

colorlib/src/lib.rs

@@ -0,0 +1,101 @@
+pub mod color;
+
+pub use color::hcl;
+pub use color::hex;
+pub use color::hsv;
+pub use color::rgb;
+pub use color::Color;
+
+use wasm_bindgen::prelude::*;
+
+#[wasm_bindgen]
+pub struct ColorSquare {
+    size: usize,
+    pixels: Vec<u8>,
+}
+
+#[wasm_bindgen]
+impl ColorSquare {
+    #[wasm_bindgen(constructor)]
+    pub fn new(size: usize) -> ColorSquare {
+        let pixels = vec![0; size * size * 4];
+        ColorSquare { size, pixels }
+    }
+
+    pub fn fill_chroma(&mut self, chroma: f64) {
+        let mut next = self.pixels.clone();
+
+        for row in 0..self.size {
+            let lum = 1.0 - (1.0 / self.size as f64) * row as f64;
+            for col in 0..self.size {
+                let hue = (360.0 / self.size as f64) * col as f64;
+                let hex_color = hex::Hex::from_hcl(hue, chroma, lum);
+                let idx = self.size * 4 * row + col * 4;
+                next[idx] = hex_color.r;
+                next[idx + 1] = hex_color.g;
+                next[idx + 2] = hex_color.b;
+                next[idx + 3] = 255;
+            }
+        }
+
+        self.pixels = next;
+    }
+
+    pub fn get_size(&self) -> usize {
+        self.size
+    }
+
+    pub fn get_pixels_pointer(&self) -> *const u8 {
+        self.pixels.as_ptr()
+    }
+}
+
+#[wasm_bindgen]
+pub struct ColorBar {
+    width: usize,
+    height: usize,
+    pixels: Vec<u8>,
+}
+
+#[wasm_bindgen]
+impl ColorBar {
+    #[wasm_bindgen(constructor)]
+    pub fn new(width: usize, height: usize) -> ColorBar {
+        let pixels = vec![0; width * height * 4];
+        ColorBar {
+            width,
+            height,
+            pixels,
+        }
+    }
+
+    pub fn fill_color(&mut self, hue: f64, lum: f64) {
+        let mut next = self.pixels.clone();
+
+        for row in 0..self.height {
+            for col in 0..self.width {
+                let chroma = (1.0 / self.width as f64) * col as f64;
+                let hex_color = hex::Hex::from_hcl(hue, chroma, lum);
+                let idx = self.width * 4 * row + col * 4;
+                next[idx] = hex_color.r;
+                next[idx + 1] = hex_color.g;
+                next[idx + 2] = hex_color.b;
+                next[idx + 3] = 255;
+            }
+        }
+
+        self.pixels = next;
+    }
+
+    pub fn get_width(&self) -> usize {
+        self.width
+    }
+
+    pub fn get_height(&self) -> usize {
+        self.height
+    }
+
+    pub fn get_pixels_pointer(&self) -> *const u8 {
+        self.pixels.as_ptr()
+    }
+}