ColorData.cpp

//
//  ColorData.cpp
//  Originally created by the CSci-3081W TAs.
//

#include "ColorData.h"


ColorData::ColorData() : m_red(1), m_green(1), m_blue(1), m_alpha(1) {
}

ColorData::ColorData(float r, float g, float b ) : m_red(r), m_green(g), m_blue(b), m_alpha(1) {
}

ColorData::ColorData(float r, float g, float b, float a) : m_red(r), m_green(g), m_blue(b), m_alpha(a)  {
}

void ColorData::setRed(float r) {
	m_red = r;
}

void ColorData::setGreen(float g) {
	m_green = g;
}

void ColorData::setBlue(float b) {
	m_blue = b;
}

void ColorData::setAlpha(float a) {
	m_alpha = a;
}


float ColorData::getRed() const {
	return m_red;
}

float ColorData::getGreen() const {
	return m_green;
}

float ColorData::getBlue() const {
	return m_blue;
}

float ColorData::getAlpha() const {
	return m_alpha;
}

float ColorData::getLuminance() const {
	return 0.2126*m_red + 0.7152*m_green + 0.0722*m_blue;
}

ColorData ColorData::clampedColor() const {
	float clampedRed = ColorData::clampValue(this->getRed(), 0.f, 1.f);
	float clampedGreen = ColorData::clampValue(this->getGreen(), 0.f, 1.f);
	float clampedBlue = ColorData::clampValue(this->getBlue(), 0.f, 1.f);
	float clampedAlpha = ColorData::clampValue(this->getAlpha(), 0.f, 1.f);

	return ColorData(clampedRed, clampedGreen, clampedBlue, clampedAlpha);
}


// Apply component-wise arithmatic operations
ColorData operator* (const ColorData& a, float f) {
	return ColorData(a.m_red*f, a.m_green*f, a.m_blue*f, a.m_alpha*f);
}

ColorData operator+ (const ColorData& a, const ColorData& b) {
	return ColorData(a.m_red + b.m_red, a.m_green + b.m_green, a.m_blue + b.m_blue, a.m_alpha + b.m_alpha);
}

ColorData operator- (const ColorData& a, const ColorData& b) {
	return ColorData(a.m_red - b.m_red, a.m_green - b.m_green, a.m_blue - b.m_blue, a.m_alpha - b.m_alpha);
}