/**
 * 
 */
package visualizationElements;

import java.awt.Graphics;
import java.util.Vector;

/**
 * Represents a dot chart to visualize sort algorithms.
 * @author MSchaefer
 *
 */
public class DotChart extends VisualizationElement {

	private static final int DOT_DIAMETER = 5;
	private static final int START_X_POS = 20;
	private int startYPos;
	private int startXPos;
	private int height;
	private int width;
	private Vector<Integer> values;
	
	/**
	 * Creates a new dot chart.
	 * @param values Vector with values the dot chart visualizes. 
	 * @param height Height of the dot chart.
	 * @param width Width of the dot chart.
	 */
	public DotChart(Vector<Integer> values, int height, int width) {
		super();
		this.setValues(values);
		this.setHeight(height);
		this.setWidth(width);
		startYPos = height - 20;
	}
	
	/**
	 * Creates a new dot chart.
	 * @param values Array with values the dot chart visualizes. 
	 * @param height Height of the dot chart.
	 * @param width Width of the dot chart.
	 */
	public DotChart(int[] values, int height, int width) {
		super();
		
		this.setHeight(height);
		this.setWidth(width);
		startYPos = height - 20;
		
		Vector<Integer> valueVector = new Vector<Integer>();
		
		for(int element : values){
			valueVector.add(element);
		}
		this.setValues(valueVector);
	}
	
	@Override
	public void draw(Graphics g) {
		
		int xpos = START_X_POS;
		int section = (width)/values.size();
		for(Integer value : values){
			g.fillOval(xpos, startYPos - value * (height/values.size()) - DOT_DIAMETER, DOT_DIAMETER, DOT_DIAMETER);
			xpos = xpos + section;
		}
		
		// Ground
		g.drawLine(START_X_POS - 10, startYPos, xpos-10, startYPos);			
	}

	/**
	 * @param values the values to set
	 */
	public void setValues(Vector<Integer> values) {
		this.values = values;
	}

	/**
	 * @return Returns the values.
	 */
	public Vector<Integer> getValues() {
		return values;
	}

	/**
	 * @param startXPos the startXPos to set
	 */
	public void setStartXPos(int startXPos) {
		this.startXPos = startXPos;
	}

	/**
	 * @return the startXPos
	 */
	public int getStartXPos() {
		return startXPos;
	}

	/**
	 * @param height the height to set
	 */
	public void setHeight(int height) {
		this.height = height;
	}

	/**
	 * @return the height
	 */
	public int getHeight() {
		return height;
	}

	/**
	 * @param width the width to set
	 */
	public void setWidth(int width) {
		this.width = width;
	}

	/**
	 * @return the width
	 */
	public int getWidth() {
		return width;
	}
}