import java.awt.*;

class Palette extends Frame
{
        private Color colour;    // indicates current color selected -> used by whiteboard


	/*
	 * This class creates the artist palette of color that one
	 * can use on the whiteboard.
	 */
        public Palette()
	{
                /*
                 * This sets the default color to black and
                 * makes the background color of the frame
                 * to be yellow
                 */

                colour = Color.black;
                setBackground( Color.yellow );

                /*
                 * This section declares and creates a button
                 * for each of the colors we are going to
                 * implement
                 */

                Button blue_button = new Button("Blue");
                Button magenta_button = new Button("Magenta");
                Button red_button = new Button("Red");
                Button green_button = new Button("Green");
                Button black_button = new Button("Black");
                Button gray_button = new Button("Gray");
                Button yellow_button = new Button("Yellow");
                Button orange_button = new Button("Orange");
                Button cyan_button = new Button("Cyan");
                Button pink_button = new Button("Pink");

		/*
  		 * use grid layout to force buttons into 2 column
		 * this makes them appear vertical
		 */

                 setLayout( new GridLayout( 5, 2 ) );


                /* this section is to set the buttons to their
                 * respective colors so the button displayed
                 * is the color that the button says it is
                 */

                blue_button.setBackground(Color.blue);
                magenta_button.setBackground(Color.magenta);
                red_button.setBackground(Color.red);
                green_button.setBackground(Color.green);
                black_button.setBackground(Color.black);
                gray_button.setBackground(Color.gray);
                yellow_button.setBackground(Color.yellow);
                orange_button.setBackground(Color.orange);
                cyan_button.setBackground(Color.cyan);
                pink_button.setBackground(Color.pink);

                /*
                 * This section of code adds /displays each button
                 * inside the color palette frame
                 */

                add( blue_button );
                add( magenta_button );
                add( red_button );
                add( green_button );
                add( black_button );
                add( gray_button );
                add( yellow_button );
                add( orange_button );
                add( cyan_button );
                add( pink_button );
             
  	}

	public boolean action( Event evt, Object arg )
	{
                if( "Blue".equals( arg ) )
		{
                        set_palette_Color( Color.blue );
		}

                if( "Magenta".equals( arg ) )
		{
                        set_palette_Color( Color.magenta );
		}

                if( "Red".equals( arg ) )
		{
                        set_palette_Color( Color.red );
		}

                if( "Black".equals( arg ) )
		{
                        set_palette_Color( Color.black );
		}

                if( "Gray".equals( arg ) )
		{
                        set_palette_Color( Color.gray );
		}

                  if( "Green".equals( arg ) )
		{
                        set_palette_Color( Color.green );
		}

                if( "Yellow".equals( arg ) )
		{
                        set_palette_Color( Color.yellow );
		}

                if( "Orange".equals( arg ) )
		{
                        set_palette_Color( Color.orange );
		}

                if( "Pink".equals( arg ) )
		{
                       set_palette_Color( Color.pink );
		}

                if( "Cyan".equals( arg ) )
		{
                       set_palette_Color( Color.cyan );
		}
           
   		return( true ); // event won't cascade backwards in object hierarchy
	}

	public Color getColor()
	{
                return( colour );
	}

        public void set_palette_Color(Color c)
	{
                System.out.println( "The color has been set....\n" );
                colour = c;
	}

}

Written By Graham L. Mehl
Last Modified on April 23, 1996
© Villanova University
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