/*
 * RandCharPanel.java
		------------ starter code version --------------

 *
 * Created on February 5, 2003, 5:04 PM
 */

package randchars;

import java.awt.Color;
import java.awt.Font;
import java.awt.FontMetrics;
import java.awt.Point;
import javax.swing.JPanel;
import MDUtils.*;

/** A panel which displays a list of characters.
 *  A controller or model should activate this viewer by calling repaint();
 *
 * @author  dickey
 */
public class OuijaViewer extends JPanel implements IPublicInformation {
    
    private static final int panelWidth = 400;
    private static final int panelHeight = 200;
    
    /** Position in the panel where we want the first character to display.
     */
    private int xStart = 10, yStart = 30;
    /** Size of a character area on the screen; the area may include more
     * than just the single character (for example).
     */
    private int charWidth, charHeight;
    
    /** The model of the list of characters.
     */
    private RandCharsModel charsModel;

    /** A code prefix that is the same for each object. */
    private final static String IDPrefix = "Ouija Panel-";
    /** A suffix that is unique for each object.*/
    private static char objtag = 'a';
    /** A value that is unique for each object. */
    private String objectID;
    
    private Font niceFont;

    
    /** Creates a new instance of OuijaPanel */ //shouldn't need changing.
    public OuijaViewer(RandCharsModel charsModel) {
        assert charsModel != null;
        this.charsModel = charsModel;
        
        this.setPreferredSize(new java.awt.Dimension(panelWidth, panelHeight));
        this.objtag = (char) (1 + (int) objtag);
        this.objectID = IDPrefix + objtag;
        this.niceFont = new Font("Arial Unicode MS", Font.BOLD, 24);
        if (this.niceFont == null) {
            this.niceFont = new Font("SansSerif", Font.BOLD, 24);
            //if the result is still null, paint will use whatever it can.
        }

    }
    
    
    /** Paint the screen with information from the model.
    */
    public void paintComponent(java.awt.Graphics origG) {
        java.awt.Graphics2D g = (java.awt.Graphics2D) origG;
        this.setBackground(this.getColor());
        super.paintComponent(g);
        if (this.niceFont != null) {
             g.setFont(this.niceFont);
        }
        g.setColor(new Color(180, 40, (int) (50 * Math.random()))); //random dark red
        Point position = new Point(xStart, yStart); //place to draw the next char.

		//-------- add code here ------
		// --- get data (chars) from the model, draw it on the panel
		// --- update the position before drawing each character
        
    //end paint    
    }
    
    /** Update the drawing position for next time.
     */  //no changes needed.
    private void updatePosition(Point position, String lastString, FontMetrics fm) {
            int latestWidth = fm.stringWidth(lastString);
            position.x += latestWidth;
            if (position.x + latestWidth > panelWidth) {
                //start a new line
                position.x = xStart;
                position.y += fm.getHeight();
                if (position.y >= panelHeight) {
                    //at bottom of panel already -- no room. Wrap to top.
                    position.y = yStart;
                }
            }
    }
    
    /** Tells a small amount of author information.
     * @return a "short string" identifying the author(s)
     * of the class.
     * **** IF YOU DO NOT WISH TO BE PUBLICLY IDENTIFIED, return a pseudonym or
     * code name.
     */
    public String getAuthor() {
        return "Gess Hoo";
    }
    
    /** Return a preferred color for the object.  Colors might be used by
     * clients to set a background color, a border color, etc.
     * @return A Color, or null if there is no preferred color.
     */
    public Color getColor() {
        return new Color(0xff, 0xaa, 20 + (int)(30 * Math.random())); //random brown
    }
    
    /** Gives a URL to an image representing this class.
     * @return a string which is a full URL to a .jpg or .gif file.  The
     * image is expected to in some way stand for or depict the class.  It
     * is acceptable to return null.
     */
    public String getImageURLString() {
        //return "C:\\Documents and Settings\\dickey\\My Documents\\My Pictures\\2003_01_19 & 20\\144-4444_IMG.JPG";
        return "http://www.prairieghosts.com/ouija1.jpg";
        //return "http://www.unicode.org/img/globe_iuc23.gif";
    }
    
    /** Return a "long string" describing the object or how to use it.
     */
    public String getInstructions() {
        return "Tap on the Ouija Board to see the next character";
    }
    
    /** Return a "long string" describing this object.  The description might
     *  be the same for all objects of the type.
     */
    public String getObjectDescription() {
        String retString = "The Ouija Board is like a telegraph receiver." +
            " It hears messages coming through the ether from the spirit world, " +
            "and reveals them to you.";
        //"  For Unicode character charts, see http://www.unicode.org/charts/";
        String fontName = "";
        if (this.niceFont != null) {
            fontName = this.niceFont.getFontName();
        } else {
            fontName = " a default.";
        }
        retString += " The font in use is " + fontName + ".";
        return retString;
    }
    
    /** Return a short string identifying this object.  The object name should
     * be unique for each object instantiated.
     */
    public String getObjectName() {
        return this.objectID;
    }
    
    public String toString() {
        return this.getObjectName();
    }
//end class RandCharPanel    
}