package visualizationElements;

import java.awt.Color;
import java.awt.Graphics;

/**
 * Represents a vertex of a graph to visualize.
 * @author MSchaefer
 *
 */
public class Vertex {
	
	private static final String DEFAULT_MARKING = "";
	private static final Color DEFAULT_COLOR = Color.BLACK;
	private final int VERTEX_DIAMETER = 20;
	private int xpos;
	private int ypos;
	private String marking;
	private Color color;
	
	/**
	 * Creates a new Vertex.
	 * @param xpos X-Position of the vertex.
	 * @param ypos Y-Position of the vertex.
	 * @param marking The marking of the vertex.
	 * @param color Color the vertex is showed.
	 */
	public Vertex(int xpos, int ypos, String marking, Color color){
		this.setXpos(xpos);
		this.setYpos(ypos);
		this.setMarking(marking);
		this.setColor(color);
	}

	
	/**
	 * Creates a new Vertex without marking.
	 * @param xpos X-Position of the vertex.
	 * @param ypos Y-Position of the vertex.
	 * @param color Color the vertex is showed.
	 */
	public Vertex(int xpos, int ypos, Color color){
		this.xpos = xpos;
		this.ypos = ypos;
		this.marking = DEFAULT_MARKING;
		this.color = color;
	}
	
	
	/**
	 * Creates a new black Vertex.
	 * @param xpos X-Position of the vertex.
	 * @param ypos Y-Position of the vertex.
	 * @param marking The marking of the vertex.
	 */
	public Vertex(int xpos, int ypos, String marking){
		this.xpos = xpos;
		this.ypos = ypos;
		this.marking = marking;
		this.color = DEFAULT_COLOR;
	}
	
	
	/**
	 * Creates a new black Vertex without marking.
	 * @param xpos X-Position of the vertex.
	 * @param ypos Y-Position of the vertex.
	 */
	public Vertex(int xpos, int ypos){
		this.xpos = xpos;
		this.ypos = ypos;
		this.marking = DEFAULT_MARKING;
		this.color = DEFAULT_COLOR;
	}
	
	
	/**
	 * @param ypos the y position to set
	 */
	public void setYpos(int ypos) {
		this.ypos = ypos;
	}
	
	
	/**
	 * @return the y position
	 */
	public int getYpos() {
		return ypos;
	}

	
	/**
	 * @param xpos the x position to set
	 */
	public void setXpos(int xpos) {
		this.xpos = xpos;
	}
	

	/**
	 * @return the x position
	 */
	public int getXpos() {
		return xpos;
	}
	

	/**
	 * @param color the color to set
	 */
	public void setColor(Color color) {
		this.color = color;
	}

	
	/**
	 * @return the color
	 */
	public Color getColor() {
		return color;
	}
	
	
	/**
	 * @param marking
	 */
	public void setMarking(String marking) {
		this.marking = marking;	
	}
	
	
	/**
	 * @return the marking
	 */
	public String getMarking(){
		return this.marking;
	}

	
	/**
	 * @return the vERTEX_DIAMETER
	 */
	public int getVertexDiameter() {
		return VERTEX_DIAMETER;
	}
	
	/**
	 * Draws the vertex.
	 * @param g Graphics object to draw to the DrawArea
	 * 
	 */
	public void draw(Graphics g){
		g.setColor(getColor());
		g.fillOval(getXpos(),  getYpos(), VERTEX_DIAMETER, VERTEX_DIAMETER);
		
		g.setColor(Color.BLACK);
		g.drawString(getMarking(), getXpos(), getYpos()-5);
	}
}