package jalview.gui;

import jalview.datamodel.*;
import jalview.schemes.*;
import java.awt.*;
import java.util.*;

public class FeatureRenderer implements RendererI {


    public Color getResidueBoxColour(ColourSchemeI cs, SequenceI seq, int i) {
	Color c = cs.findColour(seq,seq.getSequence(i,i+1),i,null);
	return c;
    }

    public void drawSequence(Graphics g,ColourSchemeI cs,SequenceI seq,int start, int end, int x1, int y1, double width, int height,boolean showScores, boolean displayBoxes, boolean displayText,Vector pid, int seqnum,AlignViewport av) {

	int i      = start;
	int length = seq.getLength();

	Color currentColor = Color.black;


	int    prev   = -1;
        int    fstart = 0;
        char   prevc   = '-';

	g.setColor(Color.magenta);

	while (i <= end && i < length) {
            char c = seq.getCharAt(i);
	    if (c != '-') {

              if (prevc != c) {

                if (prevc == 'F') {
                  g.setColor(Color.green);
                } else if (prevc == 'R') {
                  g.setColor(Color.cyan);
                } else if (prevc == 'M') {
                  g.setColor(Color.magenta);
                } else if (prevc == 'P') {
                  g.setColor(Color.yellow);
                }
		g.fillRect(x1+(int)(width*(i-fstart)),y1+height/4,(int)((prev-fstart+1)*width),height/2);

                prevc   = c;
                fstart = i;
            }
          } else if (prevc != '-') {
                if (prevc == 'F') {
                  g.setColor(Color.green);
                } else if (prevc == 'R') {
                  g.setColor(Color.cyan);
                } else if (prevc == 'M') {
                  g.setColor(Color.magenta);
                } else if (prevc == 'P') {
                  g.setColor(Color.yellow);
                }
		g.fillRect(x1+(int)(width*(fstart-start)),y1+height/4,(int)((i-fstart+1)*width),height/2);

                prevc = c;
          } else {
            fstart = -1;
          }
	    i++;
	}

        if (fstart != -1) {
        if (prevc == 'F') {
          g.setColor(Color.green);
        } else if (prevc == 'R') {
          g.setColor(Color.cyan);
        } else if (prevc == 'M') {
          g.setColor(Color.magenta);
        } else if (prevc == 'P') {
          g.setColor(Color.yellow);
        }

	//g.fillRect(x1+(int)(width*(fstart-start)),y1+height/4,(int)((end-fstart+1)*width),height/2);

        }
    }

}