From 596ace81fb53eeb18bb0407eec853e3fda14bb3d Mon Sep 17 00:00:00 2001
From: Edouard DUPIN <yui.heero@gmail.com>
Date: Tue, 14 Aug 2012 17:33:17 +0200
Subject: [PATCH] Add color capacity

---
 Sources/libetk/etk/Color.cpp | 48 ++++++++++++++++++++++++++++++++++++
 Sources/libetk/etk/Color.h   |  7 ++++++
 2 files changed, 55 insertions(+)

diff --git a/Sources/libetk/etk/Color.cpp b/Sources/libetk/etk/Color.cpp
index 8af53007..4931553a 100644
--- a/Sources/libetk/etk/Color.cpp
+++ b/Sources/libetk/etk/Color.cpp
@@ -515,6 +515,54 @@ etk::CCout& etk::operator <<(etk::CCout &os, const etk::Color &obj)
 	return os;
 }
 
+etk::Color etk::Color::operator *(const etk::Color& _input)
+{
+	etk::Color tmp(*this);
+	tmp *= _input;
+	return tmp;
+}
+
+etk::Color etk::Color::operator +(const etk::Color& _input)
+{
+	etk::Color tmp(*this);
+	tmp += _input;
+	return tmp;
+}
+
+etk::Color etk::Color::operator -(const etk::Color& _input)
+{
+	etk::Color tmp(*this);
+	tmp -= _input;
+	return tmp;
+}
+
+etk::Color& etk::Color::operator *=(const etk::Color& _input)
+{
+	red   = (int32_t)red   * (int32_t)_input.red   / 255;
+	green = (int32_t)green * (int32_t)_input.green / 255;
+	blue  = (int32_t)blue  * (int32_t)_input.blue  / 255;
+	alpha = (int32_t)alpha * (int32_t)_input.alpha / 255;
+	return *this;
+}
+
+etk::Color& etk::Color::operator +=(const etk::Color& _input)
+{
+	red   = etk_min((int32_t)red   + (int32_t)_input.red,   255);
+	green = etk_min((int32_t)green + (int32_t)_input.green, 255);
+	blue  = etk_min((int32_t)blue  + (int32_t)_input.blue,  255);
+	alpha = etk_min((int32_t)alpha + (int32_t)_input.alpha, 255);
+	return *this;
+}
+
+etk::Color& etk::Color::operator -=(const etk::Color& _input)
+{
+	red   = etk_min((int32_t)red   - (int32_t)_input.red,   255);
+	green = etk_min((int32_t)green - (int32_t)_input.green, 255);
+	blue  = etk_min((int32_t)blue  - (int32_t)_input.blue,  255);
+	alpha = etk_min((int32_t)alpha - (int32_t)_input.alpha, 255);
+	return *this;
+}
+
 etk::Color& etk::Color::operator= (const etk::Color &_input )
 {
 	//TK_INFO("OPERATOR de recopie");
diff --git a/Sources/libetk/etk/Color.h b/Sources/libetk/etk/Color.h
index 88473dbd..27ad83d2 100644
--- a/Sources/libetk/etk/Color.h
+++ b/Sources/libetk/etk/Color.h
@@ -50,6 +50,13 @@ namespace etk {
 			Color(etk::UString data);
 			Color(const char * data);
 			// operator :
+			etk::Color  operator *(const etk::Color& _input);
+			etk::Color  operator +(const etk::Color& _input);
+			etk::Color  operator -(const etk::Color& _input);
+			etk::Color& operator *=(const etk::Color& _input);
+			etk::Color& operator +=(const etk::Color& _input);
+			etk::Color& operator -=(const etk::Color& _input);
+			
 			etk::Color& operator=(const uint32_t _input);
 			etk::Color& operator=(const etk::Color& _input);
 			bool operator==(const etk::Color& _input) const;