Add tuple conversions with From for Color #699

src/sdl2/pixels.rs

@@ -157,6 +157,19 @@ impl From<sys::SDL_Color> for Color {
     }
 }
 
+
+impl From<(u8, u8, u8)> for Color {
+    fn from((r, g, b): (u8, u8, u8)) -> Color {
+        Color::RGB(r, g, b)
+    }
+}
+
+impl From<(u8, u8, u8, u8)> for Color {
+    fn from((r, g, b, a): (u8, u8, u8, u8)) -> Color {
+        Color::RGBA(r, g, b, a)
+    }
+}
+
 impl rand::Rand for Color {
     fn rand<R: rand::Rng>(rng: &mut R) -> Color {
         if rng.gen() { Color::RGBA(rng.gen(), rng.gen(), rng.gen(), rng.gen()) }

src/sdl2/render.rs

@@ -902,8 +902,8 @@ impl<T: RenderTarget> Canvas<T> {
     }
 
     /// Sets the color used for drawing operations (Rect, Line and Clear).
-    pub fn set_draw_color(&mut self, color: pixels::Color) {
-        let (r, g, b, a) = color.rgba();
+    pub fn set_draw_color<C: Into<pixels::Color>>(&mut self, color: C) {
+        let (r, g, b, a) = color.into().rgba();
         let ret = unsafe { sys::SDL_SetRenderDrawColor(self.raw, r, g, b, a) };
         // Should only fail on an invalid renderer
         if ret != 0 {