//Enter background color: blue
//Enter font name: SansSerif
//Enter font size: 50
//Enter message: THINK
//
// ascent+descent = height of message;
// divide by 2 and leave that much space left/right/up/down
// if color is not valid; use black

// Prompt user to enter background color and determine matching Color object
// Prompt user to enter the font name
// Prompt user to enter the font size
// Prompt user to enter the message
// Create a window labeled Display Message
// Create the desired font and obtain FontMetrics object for it
// compute width and height of message and ascent of font
// display window ; sizing it to fit the message
// draw rectangle in specified background color
// display message in white centered
// repaint window

import java.awt.*;
import ohjava.*;

public class DisplayMessage {
  public static void main (String args[]) {
    DrawableFrame df;
    Graphics g;
    Graphics g2;
    Font f;
    FontMetrics fm;
    String fontName;
    String message;
    int ascent;
    int fontSize;
    int messageHeight;
    int messageWidth;
    Color backgroundColor;

    SimpleIO.prompt("Enter background color: ");
    backgroundColor = convertToColor(SimpleIO.readLine());

    SimpleIO.prompt("Enter font name: ");
    fontName = SimpleIO.readLine();

    SimpleIO.prompt("Enter font size: ");
    fontSize = Integer.parseInt(SimpleIO.readLine());

    SimpleIO.prompt("Enter message: ");
    message = SimpleIO.readLine();

    df = new DrawableFrame("Display Message");

    f = new Font(fontName, Font.PLAIN, fontSize);
df.show();
df.setSize(1,1);
g = df.getGraphicsContext();
    fm = g.getFontMetrics(f);

    messageWidth = fm.stringWidth(message);
    ascent = fm.getAscent();
    messageHeight = ascent + fm.getDescent();

    df.show();
    df.setSize(messageWidth+messageHeight, 2*messageHeight);
    
    g = df.getGraphicsContext();
    g.setColor(backgroundColor);
    g.fillRect(0,0,messageWidth+messageHeight, 2*messageHeight);
    g.setColor(Color.white);
    g.setFont(f);
    g.drawString(message,messageHeight/2, messageHeight/2 + ascent);
  
    df.repaint();
  }

  private static Color convertToColor(String colorName) {
    if (colorName.equalsIgnoreCase("blue"))
      return Color.blue; 
    else if (colorName.equalsIgnoreCase("cyan"))
      return Color.cyan; 
    else if (colorName.equalsIgnoreCase("darkGray"))
      return Color.darkGray; 
    else if (colorName.equalsIgnoreCase("gray"))
      return Color.gray; 
    else if (colorName.equalsIgnoreCase("green"))
      return Color.green; 
    else if (colorName.equalsIgnoreCase("lightGray"))
      return Color.lightGray; 
    else if (colorName.equalsIgnoreCase("magenta"))
      return Color.magenta; 
    else if (colorName.equalsIgnoreCase("orange"))
      return Color.orange; 
    else if (colorName.equalsIgnoreCase("pink"))
      return Color.pink; 
    else if (colorName.equalsIgnoreCase("red"))
      return Color.red; 
    else if (colorName.equalsIgnoreCase("white"))
      return Color.white; 
    else if (colorName.equalsIgnoreCase("yellow"))
      return Color.yellow; 
    else 
      return Color.black;
  }
}