#include "icon.h"
#include <fstream>

using namespace std;

Icon::Icon() {
	for( int x = 0; x < 16; x++ ) {
		palette[x] = RGB();
		for( int y = 0; y < 16; y++ ) {
			pixels[x][y] = 0;
		}
	}
}

int Icon::pixel( int x, int y ) {
	x = x < 0 || x >= 16 ? 0 : x;
	y = y < 0 || y >= 16 ? 0 : y;
	return pixels[x][y];
}

RGB Icon::pixelRGB( int x, int y ) {
	x = x < 0 || x >= 16 ? 0 : x;
	y = y < 0 || y >= 16 ? 0 : y;
	return paletteColor( pixels[x][y] );
}

void Icon::pixel( int x, int y, int colorIndex ) {
	x = x < 0 || x >= 16 ? 0 : x;
	y = y < 0 || y >= 16 ? 0 : y;
	pixels[x][y] = colorIndex;
}

RGB Icon::paletteColor( int index ) {
	index = index < 0 || index >= 16 ? 0 : index;
	return palette[index];
}

void Icon::paletteColor( int index, RGB color ) {
	index = index < 0 || index >= 16 ? 0 : index;
	palette[index] = color;
}

bool Icon::exportXPM( char* fileName ) {
	FILE *xpm = fopen( fileName, "w" );
	if( xpm < 0 ) {
		return false;
	}
	
	fprintf( xpm, "/* XPM */\n" );
	fprintf( xpm, "static char *psx[] = {\n" );
	fprintf( xpm, "/* columns rows colors chars-per-pixel */\n" );
	fprintf( xpm, "\"16 16 16 1\",\n" );
	
	// Palette Conversion
	
	char paletteXPM[17] = " .XoO+@#$%&*=-;:";
	for( int i = 0; i < 16; i++ ) {
		RGB col = paletteColor( i );
		fprintf( xpm, "\"%c c #%.2x%.2x%.2x\",\n", paletteXPM[i], col.r, col.g, col.b );
	}

	fprintf( xpm, "/* pixels */\n" );
	
	// Pixel Conversion

 	for( int y = 0; y < 16; y++ ) {
      	fprintf( xpm, "\"" );
		for( int x = 0; x < 16; x++ ) {
			fprintf( xpm, "%c", paletteXPM[ pixel( x, y ) ] );
		}
		if( y < 15 ) {
			fprintf( xpm, "\",\n" );
		} else {
      		fprintf( xpm, "\"\n}" );
		}
	}
	
	fclose( xpm );
	return true;
}