#include<iostream>
#include<fstream>

using namespace std;

struct FileHeader
{
	char headerField[3];
	unsigned int fileSize;
	unsigned int reserved;
	unsigned int bmpOffset;
};

struct ImageHeader
{
	unsigned int headerSize; //0Eh	4	the size of this header (40 bytes)
	//12h	4	the bitmap width in pixels (signed integer).
	//16h	4	the bitmap height in pixels (signed integer).
	unsigned short colorPlanes; //1Ah	2	the number of color planes being used. Must be set to 1.
	unsigned short bitsPerPixel;//1Ch	2	the number of bits per pixel, which is the color depth of the image. Typical values are 1, 4, 8, 16, 24 and 32.
	//1Eh	4	the compression method being used. See the next table for a list of possible values.
	//22h	4	the image size. This is the size of the raw bitmap data (see below), and should not be confused with the file size.
	//26h	4	the horizontal resolution of the image. (pixel per meter, signed integer)
	//2Ah	4	the vertical resolution of the image. (pixel per meter, signed integer)
	//2Eh	4	the number of colors in the color palette, or 0 to default to 2n.
	//32h	4	the number of important colors used, or 0 when every color is important; generally ignored.

};

struct Image
{
	FileHeader fileHeader;
	ImageHeader imageHeader;
	//list of pixels

	Image(string fileName)
	{
		ifstream fin(fileName, ios_base::binary);
	
		fin.read(fileHeader.headerField,2);
		fin.read((char*)(&fileHeader.fileSize),4);
		fin.read((char*)(&fileHeader.reserved),4);
		fin.read((char*)(&fileHeader.bmpOffset),4);
		fin.close();
	}

	void displayHeaders()
	{
		cout << fileHeader.headerField << endl;
		cout << fileHeader.fileSize << endl;
		cout << fileHeader.reserved << endl;
		cout << fileHeader.bmpOffset << endl;
	}
};

//encapsulation
//information hiding

void main()
{
	Image image("image.bmp");
	image.displayHeaders();
}