//  SquareBallRectangleView.java by Kari Laitinen 

//  http://www.naturalprogramming.com/

//  2013-02-13  File created.
//  2019-01-14  Last modification.


package square.ball.rectangle ;

import android.graphics.* ;
import android.view.* ;
import android.content.Context ;
import android.util.AttributeSet ;

public class SquareBallRectangleView extends View
{
   int view_center_point_x = 100 ;
   int view_center_point_y = 100 ;

   String shape_to_draw = "Square" ;

   public SquareBallRectangleView( Context context ) 
   {
      super( context ) ;
   }
    
   //  The following constructor is needed when SquareBallRectangleView object is
   //  specified in an XML file, and is thus created automatically.

   public SquareBallRectangleView( Context context, AttributeSet attributes ) 
   {
      super( context, attributes ) ;
   }

   public void onSizeChanged( int current_width_of_this_view,
                              int current_height_of_this_view,
                              int old_width_of_this_view,
                              int old_height_of_this_view )
   {
      view_center_point_x  = current_width_of_this_view / 2 ;
      view_center_point_y  = current_height_of_this_view  / 2 ;
   }

   public void set_shape_to_draw( String given_shape_to_draw )
   {
      shape_to_draw = given_shape_to_draw ;
      invalidate() ;
   }
    
   @Override
   protected void onDraw( Canvas canvas ) 
   {
      Paint filling_paint = new Paint() ;
      filling_paint.setStyle( Paint.Style.FILL ) ;

      Paint outline_paint = new Paint() ;  // Default color for Paint is black.
      outline_paint.setStyle( Paint.Style.STROKE ) ;

      if ( shape_to_draw.equals( "Square" ) )
      {
         filling_paint.setColor( Color.CYAN ) ;

         canvas.drawRect( view_center_point_x - 80, view_center_point_y - 80,
                          view_center_point_x + 80, view_center_point_y + 80,
                          filling_paint ) ;

         canvas.drawRect( view_center_point_x - 80, view_center_point_y - 80,
                          view_center_point_x + 80, view_center_point_y + 80,
                          outline_paint ) ;
      }
      else if ( shape_to_draw.equals( "Ball" ) )
      {
         filling_paint.setColor( Color.MAGENTA ) ;

         canvas.drawCircle( view_center_point_x,
                            view_center_point_y, 80, filling_paint ) ;

         canvas.drawCircle( view_center_point_x,
                            view_center_point_y, 80, outline_paint ) ;
      }
      else if ( shape_to_draw.equals( "Rectangle" ) )
      {
         filling_paint.setColor( Color.YELLOW ) ;
         

         canvas.drawRect( view_center_point_x - 120, view_center_point_y - 60,
                          view_center_point_x + 120, view_center_point_y + 60,
                          filling_paint ) ;

         canvas.drawRect( view_center_point_x - 120, view_center_point_y - 60,
                          view_center_point_x + 120, view_center_point_y + 60,
                          outline_paint ) ;

      }
   }
}


/**

         // With the Path class you can create some complex
         // graphical shapes. The following Path will be a 5-point star
         
         Path star_shape_5  =  new Path() ;

         //  The following coordinates are fixed supposing that the
         //  radius of the star is 80 pixels (points).
         //  Larger or smaller stars are drawn by adjusting the scale of
         //  the coordinate system. If you want to change the default
         //  star radius (80 points), you must modify these coordinates
         //  as well.

         star_shape_5.moveTo( view_center_point_x + 76.08F,
                              view_center_point_y - 24.72F ) ; // start from upper right point
         star_shape_5.lineTo( view_center_point_x - 47.02F,
                              view_center_point_y + 64.72F ) ; // to lower left point
         star_shape_5.lineTo( view_center_point_x,
                              view_center_point_y - 80.0F  ) ; // to upper middle point
         star_shape_5.lineTo( view_center_point_x + 47.02F,
                              view_center_point_y + 64.72F ) ; // to lower right point
         star_shape_5.lineTo( view_center_point_x - 76.08F,
                              view_center_point_y - 24.72F ) ; // to upper left point
         star_shape_5.close() ;                // to upper right point

         canvas.drawPath( star_shape_5, filling_paint ) ;

         canvas.drawPath( star_shape_5, outline_paint ) ;
          
         // The following lines specify a Path for triangle shape.
         
         Path  triangle_path  =  new  Path() ;

         triangle_path.moveTo( view_center_point_x, view_center_point_y - 80 ) ;
         triangle_path.lineTo( view_center_point_x + 96, view_center_point_y + 80 ) ;
         triangle_path.lineTo( view_center_point_x - 96, view_center_point_y + 80 ) ;
         triangle_path.close() ;
          
**/