package be.wout.draw;

import java.awt.Color;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Rectangle;
import java.awt.TexturePaint;
import java.awt.image.BufferedImage;
import java.util.ArrayList;
import java.util.List;

import javax.swing.JPanel;

import be.wout.draw.shapes.Shape;
import be.wout.listeners.DrawPanelListener;

public class DrawPanel extends JPanel
{
	private DrawPanelListener dpl;
	private List<Shape> shapes = new ArrayList<>();
	private Shape tmpShape;

	public DrawPanel()
	{
		setOpaque(true);
		setBackground(Color.WHITE);

		dpl = new DrawPanelListener(this);
		addMouseListener(dpl);
		addMouseMotionListener(dpl);
	}

	public void paintComponent(Graphics g)
	{
		super.paintComponent(g);

		for (Shape s : shapes)
		{
			if (s != null)
				s.render(g);
		}
		if (tmpShape != null)
			tmpShape.render(g);
	}

	public void addImage(BufferedImage img)
	{
		Graphics2D g = (Graphics2D) img.getGraphics();
		g.setPaint(new TexturePaint(img, new Rectangle(0, 0, img.getWidth(), img.getHeight())));
		g.fillRect(0, 0, getWidth(), getHeight());

		repaint();
		validate();
	}

	public List<Shape> getShapes()
	{
		return shapes;
	}

	public void setShapes(List<Shape> shapes)
	{
		this.shapes = shapes;
	}

	public Shape getTmpShape()
	{
		return tmpShape;
	}

	public void setTmpShape(Shape tmpShape)
	{
		this.tmpShape = tmpShape;
	}

	public void deleteLastElement()
	{
		int lastItem = shapes.size() - 1;
		if (!shapes.isEmpty())
		{
			shapes.remove(lastItem);
		}
	}

	public Shape getLastElement()
	{
		int lastItem = shapes.size() - 1;
		if (!shapes.isEmpty())
		{
			return shapes.get(lastItem);
		}
		else
		{
			return null;
		}
	}

	public void redo(Shape deletedShape)
	{
		shapes.add(deletedShape);
	}

	public void clear()
	{
		shapes.clear();
	}

}