#include "font.h"

#pragma comment(lib,"freetype")

using namespace std;

static unsigned int __numttfonts=0;
static bool __isftenabled=false;
static FT_Library ftlib;

TrueTypeFont::TrueTypeFont(const char *file,int pt)
{
	is_valid=true;

	FILE *io_test=fopen(file,"rb");
	if (!io_test)
	{
		cerr<<"Failed to load font, file could not be read!"<<endl;
		is_valid=false;
		return;
	}
	fclose(io_test);
	
	if (!__numttfonts)
	{
		if (FT_Init_FreeType(&ftlib))
		{
			cerr<<"Failed to initialize FreeType library!"<<endl;
			is_valid=false;
			return;
		}
		else
			__isftenabled=true;
	}

	// load the font from the file
	if (FT_New_Face(ftlib,file,0,&face))
	{
		cerr<<"Failed to load font, FreeType failed!\n"<<endl;
		is_valid=false;
		return;
	}

	// freetype measures fonts in 64ths of pixels, which
	// I will never understand.  6 left bit shift multiplies
	// the pt size by 64.
	FT_Set_Char_Size(face,pt<<6,pt<<6,96,96);
	this->pt=(float)pt;

	__numttfonts++;
}

TrueTypeFont::~TrueTypeFont()
{
	if (is_valid)
		FT_Done_Face(face);

	if ((!(--__numttfonts))&&__isftenabled)
	{
		FT_Done_FreeType(ftlib);
		__isftenabled=false;
	}
}