Added feature to change by percentage. Added makefile. Added shell script to modify ownership of the file that affects brightness

AlterBrightness.cpp

@@ -2,9 +2,12 @@
 #include <fstream>
 #include <ios>
 #include "AlterBrightness.h"
+#include "Brightness.h"
 
 AlterBrightness::AlterBrightness()
 {
+	currentBrightness = Brightness::getCurrentBrightness();
+	maxBrightness = Brightness::getMaxBrightness();
 }	
 AlterBrightness::AlterBrightness(unsigned& change, unsigned& current, unsigned& max)
 {
@@ -22,38 +25,53 @@ void AlterBrightness::setDecrement(unsigned& change)
 {
 	decrement = change;
 }	
-void AlterBrightness::setCurrentBrightness(unsigned& current)
+/**
+void AlterBrightness::setCurrentBrightness()
 {
 	currentBrightness = current;
 }	
-void AlterBrightness::setMaxBrightness(unsigned& max)
+void AlterBrightness::setMaxBrightness()
 {
 	maxBrightness = max;
 }	
+*/
+void AlterBrightness::setPercentageBrightness(float& percent)
+{
+	percentageBrightness = percent;
+}
 
 void AlterBrightness::chooseChange(char* changeChoice[])
 {
 	std::ofstream s;
 	s.open("/sys/class/backlight/intel_backlight/brightness", std::ios::out);
-	//std::cout << changeChoice << std::endl;
+
-	//if (1)
-	//	std::cout << changeChoice.compare("inc") << std::endl;
-	//else
-	//	std::cout << "0 is not true" << std::endl;
-	//if (changeChoice.compare(AlterBrightness::getIncrease()) == 0)
 	if (strcmp(*changeChoice, AlterBrightness::getIncrease()) == 0)
 	{
 		AlterBrightness::increaseBrightness();			
-		std::cout << "Increase" << std::endl;
+
 		std::cout << AlterBrightness::getCurrentBrightness() << std::endl;
 		s << AlterBrightness::getCurrentBrightness();
 	}
-	else
+	else if (strcmp(*changeChoice, AlterBrightness::getDecrease()) == 0)
 	{
 		AlterBrightness::decreaseBrightness();
+
 		std::cout << AlterBrightness::getCurrentBrightness() << std::endl;
 		s << AlterBrightness::getCurrentBrightness();
 	}	
+	else if (strcmp(*changeChoice, AlterBrightness::getPercent()) == 0)
+	{
+
+		std::cout << "Percentage" << std::endl;
+		setBrightnessByPercentage();
+
+		std::cout << percentageBrightness / 100 << std::endl;
+		s << currentBrightness;
+	}
+	else
+	{
+		std::cout << "Neither increase or decrease" << std::endl;
+	}
 	s.close();
 }	
 void AlterBrightness::increaseBrightness()
@@ -74,6 +92,18 @@ void AlterBrightness::decreaseBrightness()
 	else
 		currentBrightness = 1;
 }	
+void AlterBrightness::setBrightnessByPercentage()
+{
+	if (AlterBrightness::getPercentageBrightness() < 0 || AlterBrightness::getPercentageBrightness() > 100)
+	{
+		std::cout << "Has to be between 0 and 100" <<std::endl;
+	}
+	else
+	{
+		currentBrightness = (maxBrightness * (percentageBrightness/ 100));
+		std::cout << currentBrightness << std::endl;
+	}
+}
 
 
 unsigned AlterBrightness::getIncrement() const 
@@ -93,6 +123,11 @@ unsigned AlterBrightness::getMaxBrightness() const
 	return maxBrightness;
 }		
 
+float AlterBrightness::getPercentageBrightness() const
+{
+	return percentageBrightness;
+}
+
 char* AlterBrightness::getIncrease() 
 {
 	return increase;
@@ -101,3 +136,7 @@ char* AlterBrightness::getDecrease()
 {
 	return decrease;
 }	
+char* AlterBrightness::getPercent()
+{
+	return percent;
+}

AlterBrightness.h

@@ -12,28 +12,36 @@ public:
 
 	void setIncrement(unsigned&);
 	void setDecrement(unsigned&);
-	void setCurrentBrightness(unsigned&);
+	void setCurrentBrightness();
-	void setMaxBrightness(unsigned&);
+	void setMaxBrightness();
+	void setPercentageBrightness(float&);
 	
 	void chooseChange(char*[]);
 	void increaseBrightness();
 	void decreaseBrightness();
+	void setBrightnessByPercentage();
+
 
 	unsigned getIncrement() const;
 	unsigned getDecrement() const;
 	unsigned getCurrentBrightness() const;
 	unsigned getMaxBrightness() const;
 
+	float getPercentageBrightness() const;
+
 	char* getIncrease();
 	char* getDecrease();
+	char* getPercent();
 	
 private:	
 	unsigned increment;
 	unsigned decrement;
 	unsigned currentBrightness;
 	unsigned maxBrightness;
+	float percentageBrightness;
 	char* increase = "inc";
 	char* decrease = "dec";
+	char* percent = "per";
 };
 
 #endif

Brightness.cpp

@@ -2,6 +2,8 @@
 #include <fstream>
 #include "Brightness.h"
 
+unsigned Brightness::maxBrightness = 0;
+unsigned Brightness::currentBrightness = 30;
 Brightness::Brightness()
 {
 }	
@@ -25,11 +27,11 @@ void Brightness::grabMaxBrightness()
 	input.close();
 }
 
-unsigned Brightness::getCurrentBrightness() const
+unsigned Brightness::getCurrentBrightness()
 {
 	return currentBrightness;
 }
-unsigned Brightness::getMaxBrightness() const
+unsigned Brightness::getMaxBrightness()
 {
 	return maxBrightness;
 }	

Brightness.h

@@ -9,11 +9,11 @@ public:
 	void grabBrightness();
 	void grabMaxBrightness();
 
-	unsigned getCurrentBrightness() const;
+	static unsigned getCurrentBrightness();
-	unsigned getMaxBrightness() const;
+	static unsigned getMaxBrightness();
 
 private:
-	unsigned currentBrightness;
+	static unsigned currentBrightness;
-	unsigned maxBrightness;
+	static unsigned maxBrightness;
 };	
 #endif

BrightnessControl.cpp

@@ -1,7 +1,5 @@
 #include <iostream>
-#include <cstring>
 #include <fstream>
-#include <ios>
 #include "AlterBrightness.h"
 #include "Brightness.h"
 
@@ -9,36 +7,22 @@ int main(int argc, char* argv[])
 {
 	char* control[strlen(*(argv + 1))] = {*(argv + 1)};
 	unsigned changeAmount = atoi(*(argv + 2));
+	float brightnessPercentage = atoi(*(argv + 2));
 	unsigned currentBrightness;
 	unsigned maxBrightness;
 
-	/**
-	std::fstream input;
-	input.open("/sys/class/backlight/intel_backlight/brightness", std::ios::in);
-	input >> currentBrightness;
-	std::cout << currentBrightness << std::endl;
-	input.close();
 
-	input.open("/sys/class/backlight/intel_backlight/max_brightness", std::ios::in);
-	input >> maxBrightness;
-	std::cout << maxBrightness << std::endl;
-	input.close();
-	*/
 
-	AlterBrightness ab;
 	Brightness br;
 	br.grabBrightness();
 	br.grabMaxBrightness();
+	AlterBrightness ab;
 
-	currentBrightness = br.getCurrentBrightness();
-	maxBrightness = br.getMaxBrightness();
 
 	ab.setIncrement(changeAmount);
 	ab.setDecrement(changeAmount);
-	ab.setCurrentBrightness(currentBrightness);
+	ab.setPercentageBrightness(brightnessPercentage);
-	ab.setMaxBrightness(maxBrightness);
 
-	//std::string ctl(*(control));
 	ab.chooseChange((control));
 
 	return 0;

ModifyPermissions.sh

@@ -0,0 +1,5 @@
+
+you=$1
+
+sudo chown $you /sys/class/backlight/intel_backlight/brightness
+ls -l /sys/class/backlight/intel_backlight/

makefile

@@ -0,0 +1,2 @@
+Hot.out: AlterBrightness.cpp AlterBrightness.h BrightnessControl.cpp Brightness.cpp Brightness.h
+	g++ AlterBrightness.cpp AlterBrightness.h BrightnessControl.cpp Brightness.cpp Brightness.h -o Hot.out