package interfaces.JGUI;

import java.awt.*;
import java.net.*;

public class MapPanel extends Panel
{
	Map			m_map;
	MapApplet	m_mapApplet;

	Panel		m_zoomPanel;
	Panel		m_posPanel;
	TextField	m_cityName;
	Choice		m_zoomFactor;
	Button		m_redrawButton;

	boolean		m_definePos = false;
	Dimension	m_defineDim = new Dimension(300, 300);
	Image		m_pinPos;

	String		m_currentCity = new String();

	MapPanel(MapApplet mapApplet)
	{
		m_map = new Map(mapApplet);

		m_mapApplet = mapApplet;
		setLayout(null);
	    setBackground(Color.white);

		m_zoomPanel = new Panel();
		m_zoomPanel.setLayout(new FlowLayout(FlowLayout.CENTER));
		m_zoomPanel.add(new Label("City: "));
		m_cityName = new TextField(15);
		m_zoomPanel.add(m_cityName);
		m_zoomPanel.add(new Label("Zoom: "));
		m_zoomFactor = new Choice();
		m_zoomFactor.addItem("x1");
		m_zoomFactor.addItem("x2");
		m_zoomFactor.addItem("x4");
		m_zoomFactor.addItem("x8");
		m_zoomFactor.addItem("Original");
		m_zoomFactor.addItem("x0.5");
		m_zoomPanel.add(m_zoomFactor);
		m_redrawButton = new Button("Redraw");
		m_zoomPanel.add(m_redrawButton);

		m_posPanel = new Panel();
		m_posPanel.setLayout(new FlowLayout(FlowLayout.CENTER));
		m_posPanel.add(new Label("latitude: " + m_map.getPinX() + " deg."));
		m_posPanel.add(new Label(" longtitude: " + m_map.getPinY() + " deg."));
		m_posPanel.add(new Label(" distance: " + m_map.getScale() + " miles."));


		m_map.reshape(0, 0, 600, 600);
		add(m_map);
		m_zoomPanel.reshape(0, 600, 600, 37);
		add(m_zoomPanel);
		m_posPanel.reshape(0, 637, 600, 37);
		add(m_posPanel);

	}

    public boolean action(Event evt, Object arg)
	{
		if (evt.target == m_redrawButton)
		{
			String cityName = m_cityName.getText();
			if (!cityName.equalsIgnoreCase(m_currentCity))
			{
				m_map.m_drawPin = false;
				if (cityName.equalsIgnoreCase("Ithaca"))
				{
					m_map.drawMap("Ithaca", 43.1, -97.4, 32);
					m_currentCity = "Ithaca";
					updateCurrentPos();
					validate();
				}

				// in case there are other cities

			}

			String zoomFactor = m_zoomFactor.getSelectedItem();

			if (zoomFactor.equals("Original"))
			{
				if (cityName.equalsIgnoreCase("Ithaca"))
				{
					m_map.drawMap("Ithaca", 43.1, -97.4, 32);
					m_currentCity = "Ithaca";
					m_zoomFactor.select("x1");
					updateCurrentPos();
					validate();
				}
				return true;
			}

			m_map.drawZoom(zoomFactor);
			m_zoomFactor.select("x1");
			updateCurrentPos();
			validate();
		}
		return true;
	}

	public void drawPin(int x, int y)
	{
		if ((x > 0) && (x < 600) && (y > 0) && (y < 600))
		{
			m_map.drawPin(x, y);
			updateCurrentPos();
			validate();
		}
	}

	public void updateCurrentPos()
	{
		remove(m_posPanel);
		m_posPanel = new Panel();
		m_posPanel.setLayout(new FlowLayout(FlowLayout.CENTER));
		m_posPanel.add(new Label("latitude: " + m_map.getPinX() + " deg."));
		m_posPanel.add(new Label(" longtitude: " + m_map.getPinY() + " deg."));
		m_posPanel.add(new Label(" distance: " + m_map.getScale() + " miles."));
		m_posPanel.reshape(0, 637, 600, 37);
		add(m_posPanel);
	}

}