Macro for easy colour generation

1 files changed, 33 insertions, 0 deletions

diff --git a/core/src/color.rs b/core/src/color.rs
index c66ee97c..73104fc9 100644
--- a/core/src/color.rs
+++ b/core/src/color.rs
@@ -134,6 +134,39 @@ impl From<[f32; 4]> for Color {
     }
 }
 
+/// # Examples
+///
+/// ```
+/// # use iced_core::{Color, color};
+/// assert_eq!(color!(0, 0, 0), Color::from_rgb(0., 0., 0.));
+/// assert_eq!(color!(0, 0, 0, 0.), Color::from_rgba(0., 0., 0., 0.));
+/// assert_eq!(color!(0xffffff), Color::from_rgb(1., 1., 1.));
+/// assert_eq!(color!(0xffffff, 0.), Color::from_rgba(1., 1., 1., 0.));
+/// ```
+#[macro_export]
+macro_rules! color {
+    ($r:expr, $g:expr, $b:expr) => {
+        Color::from_rgb8($r, $g, $b)
+    };
+    ($r:expr, $g:expr, $b:expr, $a:expr) => {
+        Color::from_rgba8($r, $g, $b, $a)
+    };
+    ($hex:expr) => {{
+        let hex = $hex as u32;
+        let r = (hex & 0xff0000) >> 16;
+        let g = (hex & 0xff00) >> 8;
+        let b = (hex & 0xff);
+        Color::from_rgb8(r as u8, g as u8, b as u8)
+    }};
+    ($hex:expr, $a:expr) => {{
+        let hex = $hex as u32;
+        let r = (hex & 0xff0000) >> 16;
+        let g = (hex & 0xff00) >> 8;
+        let b = (hex & 0xff);
+        Color::from_rgba8(r as u8, g as u8, b as u8, $a)
+    }};
+}
+
 #[cfg(feature = "palette")]
 /// Converts from palette's `Srgba` type to a [`Color`].
 impl From<Srgba> for Color {