package visual.statik.described;


import java.awt.*;
import java.awt.geom.*;
import javax.swing.*;


/**
 * A JComponent that renders some simple geometric shapes
 *
 * @author  Prof. David Bernstein, James Madison University
 * @version 1.0
 */
public class   SimpleShapeCanvas 
       extends JComponent
{
    
    /**
     * Default Constructor
     */
    public SimpleShapeCanvas()
    {
       super();
    }
    

    /**
     * Paint this Component
     *
     * @param g   The rendering engine to use
     */
    public void paint(Graphics g)
    {
       Arc2D                  arc;       
       CubicCurve2D           cubicCurve;       
       Graphics2D             g2;
       Line2D                 line;
       Point2D                point;        
       QuadCurve2D            quadraticCurve;        
       Rectangle2D            rectangle;
        

       g2 = (Graphics2D)g;

       // Use antialiasing for text and shapes
       g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
                           RenderingHints.VALUE_ANTIALIAS_ON);

       // Use high-quality rendering
       g2.setRenderingHint(RenderingHints.KEY_RENDERING,
                           RenderingHints.VALUE_RENDER_QUALITY);


       //[point.
       // Construct a point
       point = new Point2D.Double(20.0, 30.0);
       //]point.
        


       //[line.
       // Construct a line
       line = new Line2D.Double(0.0, 0.0, 50.0, 75.0);
       //]line.
        
       // Draw the line in black
       g2.setColor(Color.BLACK);
       g2.draw(line);
        

       //[quadcurve.
       // Construct a quadratic curve
       quadraticCurve = new QuadCurve2D.Double(
                                     120.0, 120.0,  // End 1
                                     300.0, 180.0,  // Control
                                     130.0, 190.0); // End 2
       //]quadcurve.

       // Draw the quadratic curve in blue
       g2.setColor(Color.BLUE);
       g2.draw(quadraticCurve);
        

       //[cubiccurve.
       // Construct a cubic curve
       cubicCurve = new CubicCurve2D.Double(
                                   320.0, 320.0,  // End 1
                                   300.0, 180.0,  // Control 1
                                   330.0, 370.0,  // End 2
                                   360.0, 390.0); // Control 2
       //]cubiccurve.

       // Draw the cubic curve in green
       g2.setColor(Color.GREEN);
       g2.draw(cubicCurve);
        

       //[rectangle.
       // Construct a rectangle
       rectangle = new Rectangle2D.Double(
                                     10.0, 20.0, // Upper Left
                                     30.0,       // Width
                                     60.0);      // Height
       //]rectangle.


       // Draw the rectangle in red
       g2.setColor(Color.RED);
       g2.draw(rectangle);



       //[arc.
       // Construct an arc
       arc = new Arc2D.Double(10.0, 200.0, // Upper Left
                              150.0,       // Width
                              100.0,       // Height
                              0.0,         // Starting Angle
                              135.0,       // Angular Extent        
                              Arc2D.PIE);  // Type        
       //]arc.


       // Draw the arc in magenta
       g2.setColor(Color.MAGENTA);
       g2.draw(arc);
        
    }
    
}