utils/colors: move colors into subdir, add hsv

All color classes are now in an own subdirectory with a short name.
The new class HsvColor represents the Hue/Saturation/Value color model and
comes with conversion functions to and from rgb colors (currently integer
arithmetic without optimization for higher presicion).

1 files changed, 16 insertions, 8 deletions

diff --git a/src/utils/rgb_color.hpp b/src/utils/color/rgb.hpp
index 36a5b42c..6871e452 100644
--- a/src/utils/rgb_color.hpp
+++ b/src/utils/color/rgb.hpp
@@ -26,33 +26,41 @@
 #define RGB_COLOR_HPP
 
 #include <GL/gl.h>
+#include <stdint.h>
 
 namespace usdx
 {
+	class HsvColor;
+
 	class RgbColor
 	{
 	private:
-		float red;
-		float green;
-		float blue;
+		uint8_t red;
+		uint8_t green;
+		uint8_t blue;
 
 	protected:
 		mutable GLubyte *array;
 		mutable size_t array_length;
 
 	public:
-		RgbColor(int red, int green, int blue);
-		RgbColor(float red, float green, float blue);
+		RgbColor(uint8_t red, uint8_t green, uint8_t blue);
+		RgbColor(const uint32_t color);
 		RgbColor(const RgbColor& color);
+		RgbColor(const HsvColor& hsv);
 		virtual ~RgbColor();
 		RgbColor& operator=(const RgbColor& color);
 
-		float get_red(void) const;
-		float get_green(void) const;
-		float get_blue(void) const;
+		uint8_t get_red(void) const;
+		uint8_t get_green(void) const;
+		uint8_t get_blue(void) const;
 
 		virtual const GLubyte* get_array(size_t len) const;
 		int get_array_comonent_count(void) const;
+
+		bool is_grey(void) const;
+		bool is_black(void) const;
+		bool is_white(void) const;
 	};
 };