#define A5SES_IMAGE_ADDON

#include <a5ses/a5ses.hpp>

using namespace a5;

int main(int argc, const char *argv[])
{
	const char *filename;
	bool redraw = true;
	double zoom = 1;

	if (argc > 1)
		filename = argv[1];
	else
		filename = "data/mysha.pcx";
	
	Keyboard keyboard;
	
	Display display(640, 480, Display::Windowed);

	display.SetTitle(filename);
	
	Bitmap membitmap(filename);
	Bitmap bitmap(membitmap);

	Timer timer(30.f);
	
	Event_Queue queue;
	
	queue.Register(keyboard);
	queue.Register(display);
	queue.Register(timer);
	
	timer.Start();
	
	while (true)
	{
		Event_Reader e(queue);
		
		e.WaitNext();
		
		switch (e.SubType())
		{
			case Display::Event::Close:
				return 0;
			
			case Keyboard::Event::Down:
			case Keyboard::Event::Repeat:
				switch (e.Keyboard().keycode)
				{
					case Keyboard::Key::Escape:
						return 0;
					
					default:
						switch (e.Keyboard().unichar)
						{
							case '1':
								zoom = 1.0;
								break;
							
							case '+':
								zoom *= 1.1;
								break;
							
							case '-':
								zoom /= 1.1;
								break;
							
							case 'f':
								zoom = display.Width() / bitmap.Width();
								break;
						}
				}
				break;
			
			case Timer::Event::Type:
				if (e.Timer().source == &timer)
					redraw = true;

				break;
		}
		
		if (redraw)
		{
			display.Clear();

			if (zoom == 1.0)
				display.Blit(bitmap, 0, 0);
			else
				display.BlitScaled(bitmap, Rectangle(0, 0, bitmap.Width() * zoom, bitmap.Height() * zoom));

			display.Flip();

			redraw = false;
		}
	}
}