LS_ConsoleInterface.cpp

#include "LS_ConsoleInterface.h"

void CLS_ConsoleInterface::clear()
{
	// Description: Clears the screen
	COORD coordScreen = { 0, 0 }; 
	DWORD cCharsWritten; 
	CONSOLE_SCREEN_BUFFER_INFO csbi; 
	DWORD dwConSize; 

	GetConsoleScreenBufferInfo(hConsole, &csbi); 
	dwConSize = csbi.dwSize.X * csbi.dwSize.Y; 
	FillConsoleOutputCharacter(hConsole, TEXT(' '), dwConSize, coordScreen, &cCharsWritten); 
	GetConsoleScreenBufferInfo(hConsole, &csbi); 
	FillConsoleOutputAttribute(hConsole, csbi.wAttributes, dwConSize, coordScreen, &cCharsWritten); 
	SetConsoleCursorPosition(hConsole, coordScreen); 

};

void CLS_ConsoleInterface::gotoXY(int x, int y)
{
	// Precondition: two non-negative integer parameters for the x and y are provided
	// Description: Moves the cursor to x, y in console window, i.e. x=left\right y=top\bottom
	// Example: gotoXY(10, 10) moves the cursor to those coordinates
	//			gotoXY(0, 10) moves the cursor to those coordinates
	//			gotoXY(-1, 0), gotoXY(0, -1) and gotoXY(-1, -1) throws an exception
	if(x<0||y<0)
	{
		std::cout << "Coordinates cannot be less than zero." << std::endl;
		exit(1);
	}
	else
	{
		COORD point;
		point.X = x; 
		point.Y = y;
		SetConsoleCursorPosition(hConsole, point);
	}
};

void CLS_ConsoleInterface::setColour(COLOUR foreground, COLOUR background)
{
	int colour = background * 16 + foreground;
	SetConsoleTextAttribute(hConsole, colour);
};

HANDLE CLS_ConsoleInterface::hConsole = GetStdHandle(STD_OUTPUT_HANDLE);