package simple_uml.view.canvas;

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.awt.font.FontRenderContext;
import java.awt.font.TextLayout;
import java.awt.geom.Rectangle2D;

/**
 * Represents a single line of text. Line wrapping is currently not supported. 
 *
 * @author Eric Liebowitz
 * @version 02jul11
 */
public class Text extends SumlShape
{
   /** The string this object will display */
   private String s;

   /**
    * Creates Text which'll display the specified string at the given origin.
    *
    * @param s The string you want displayed
    * @param x The x-coord of the upper-left corner of where you want the text's
    *          bounding box to be
    * @param y The y-coord of the upper-left corner of where you want the text's 
    *          bounding box to be
    */
   public Text (String s, int x, int y)
   {
      this.s = s;
      this.origin = new Point(x, y);
   }

   /**
    * Draws the text object, with the upper-left corner of the text's bounding 
    * box (and thus, its first letter) at the point specified in the 
    * constructor.
    *
    * @param g2d Graphics2D object to be used to draw
    */
   public void draw (Graphics2D g2d)
   {
      FontMetrics fm = g2d.getFontMetrics(SumlCanvas.MONO_FONT);

      /*
       * I have to adjust the "origin", as the "baseline" is what gets drawn at
       * origin, allowing text to go above said origin. To fix this, I shift the
       * baseline down as much as any character might surpass it.
       */
      g2d.drawString(this.s, (int)origin.getX(), 
         (int)(origin.getY() + fm.getAscent()));

      this.bounds = new Rectangle(fm.stringWidth(this.s), fm.getHeight());
   }
}