//: grafik.cpp : Grafik-Bibliothek ohne Grafiktreiber - R.Richter 2011-01-15
////////////////////////////////////////////////////////////////////////////

#include <fstream>
#include <iostream>
#include <iomanip>
#include "image.h"

void print(std::ostream& out, Image const& image)
{
  out << "\n\nRGB-Alpha-Bild "
      << image.width() << " x " << image.height() << '\n';

  for (unsigned y = 0; y < image.height(); ++y)
  {
    for (unsigned x = 0; x < image.width(); ++x)
    {
      out << std::setw(9) << std::hex << image.pixel(x,y);
    }
    out << '\n';
  }
}

int main()
{
  Color c(255, 0, 0, 127); // red, 50% transparency
  Image image(100, 75);

  for (unsigned x = 0; x < image.height(); ++x)
  {
    image.pixel(x, x) = c;                             // rising line
    image.pixel(x, image.height()/2  ) = Color::BLUE;  // mid horizon line
    image.pixel(x, image.height()-1-x) = Color::GREEN; // falling line
  }
  image.pixel(-1, 1) = Color::WHITE; // outside ignored, doesn't crash!

  std::ofstream file("image.dat");
  print(file, image);
  saveBMP("image24.bmp", image);

  return 0;
}
//~