content: package tim.prune.config;
  
  import java.awt.Color;
  
  /**
   * Class to hold a colour scheme for GpsPrune, including
   * colours for background, points, selections and texts
   */
  public class ColourScheme
  {
  	// Current colours
  	private final Color[] _colours = new Color[NUM_COLOURS];
  
  	// Default colours
  	private static final Color[] DEFAULT_COLOURS = {Color.WHITE, Color.BLUE, Color.GREEN,
  		Color.BLACK, Color.RED, Color.ORANGE, Color.BLACK, Color.GRAY};
  
  	// Colour indices
  	public static final int IDX_BACKGROUND = 0;
  	public static final int IDX_POINT      = 1;
  	public static final int IDX_SELECTION  = 2;
  	public static final int IDX_TEXT       = 3;
  	public static final int IDX_PRIMARY    = 4;
  	public static final int IDX_SECONDARY  = 5;
  	public static final int IDX_BORDERS    = 6;
  	public static final int IDX_LINES      = 7;
  	// Number of colours
  	private static final int NUM_COLOURS = 8;
  
  
  	/**
  	 * Load the colour scheme from the given String
  	 * @param inCodes comma-separated hex codes describing colours
  	 */
  	public void loadFromHex(String inCodes)
  	{
  		if (inCodes != null && inCodes.length() > 5)
  		{
  			String[] codes = inCodes.split(",");
  			final int numCodes = Math.min(codes.length, NUM_COLOURS);
  			for (int i=0; i<numCodes; i++) {
  				_colours[i] = ColourUtils.colourFromHex(codes[i]);
  			}
  		}
  	}
  
  	/**
  	 * @return colour to use for given index
  	 */
  	public Color getColour(int inIndex)
  	{
  		assert (inIndex >= 0 && inIndex < NUM_COLOURS);
  		Color currColour = _colours[inIndex];
  		return (currColour != null ? currColour : DEFAULT_COLOURS[inIndex]);
  	}
  
  	/**
  	 * @return default colour for given index
  	 */
  	public static Color getDefaultColour(int inIndex)
  	{
  		assert (inIndex >= 0 && inIndex < NUM_COLOURS);
  		return DEFAULT_COLOURS[inIndex];
  	}
  
  	/**
  	 * Edit one of the colours to a new value
  	 * @param inIndex index of colour
  	 * @param inColour colour to set
  	 */
  	public void setColour(int inIndex, Color inColour)
  	{
  		assert (inIndex >= 0 && inIndex < NUM_COLOURS);
  		_colours[inIndex] = inColour;
  	}
  
  	/**
  	 * @return colour scheme as string of concatenated hex codes
  	 */
  	public String toString()
  	{
  		StringBuilder builder = new StringBuilder();
  		for (int i=0; i<NUM_COLOURS; i++) {
  			builder.append(ColourUtils.makeHexCode(getColour(i)));
  			builder.append(',');
  		}
  		return builder.toString();
  	}
  }
  