import	java.applet.*;
//import java.awt.toolkit.*;
import	java.awt.*;
import	java.awt.image.*;

public class SwtchCnvs extends Canvas 
	{
		boolean swState, on = true, off = false;
		Graphics SwCG;
		static final int lx = 00, cx = 15, rx  = 29, wx=30;
		static final int ty = 00, cy = 15, by = 29, wy=30;

		// Switch handle constants
		static final int slx = 9, srx0 = 15, srx1 = 22;	//  x coords.
		static final int swt = 1, swc = 15, swb = 29;	//  y coords.

		// inner boarder mask constants
		static final int imx0 = 8, imx1 = 17;		// inner mask x coords
		static final int imyt = 13, imyb = 17;		// inner mask y coords

		// fixed inner boarder constants
		static final int ibx0 = 8,   ibx1 = 6,    ibx2 = 6,   ibx3 = 8;		// left ib xÕs
		static final int iby0 = 17, iby1 = 17, iby2 = 13, iby3 = 13;	// left ib yÕs
		static final int ibx4 = 17, ibx5 = 18, ibx6 = 18, ibx7 = 17;	// right ib xÕs
		static final int iby4 = 13, iby5 = 13, iby6 = 17, iby7 = 17;	// right ib yÕs

		// outer boarder mask constants
		static final int omx0 = 9, omx1 = 17,  omyt = 10, omyb = 20;

		// fixed outer boarder constants
		static final int obx0 =   9, obx1 =    3, obx2 =   3, obx3 = 9;
		static final int oby0 = 20, oby1 = 20, oby2 = 10, oby3 = 10;
		static final int obx4 = 17, obx5 = 22, obx6 = 22, obx7 = 17;
		static final int oby4 = 10, oby5 = 10, oby6 = 20, oby7 = 20;

		// SwitchÕs title
		String title = "";

		public SwtchCnvs( )
			{
				super( ); // invoke superclasses constructor for a Canvas
				swState = false;
			}

		public SwtchCnvs( String tit )
			{
				super( ); // invoke superclasses constructor for a Canvas
				title = tit;
				swState = false;
			}

		public SwtchCnvs( boolean state )
			{
				super( );
				swState = state;
			}

		public SwtchCnvs(String tit,  boolean state )
			{
				super( );
				title = tit;
				swState = state;
			}

		public Dimension  preferredSize( )	// Set size of SwtchCnvs
			{ return new Dimension( wx, wy+15); }

		public Dimension  minimumSize( )
			{ return new Dimension( wx, wy+15); }

		public boolean getState( ) { return swState; }

		public void setState( boolean swv)
			 { swState = swv; repaint( ); }

		public boolean mouseDown( Event evt, int x, int y)
			{
				swState = !swState;
				update( this.getGraphics( ) );
				return true; 

			}

		public void paint( Graphics swcg)
			{
				// Erase changable switch parts
				swcg.setColor( getBackground ( ) );
				swcg.drawLine(slx, swc,  slx, swt);	// switch handle
				swcg.drawLine(slx, swt,  srx1, swt);
				swcg.drawLine(srx1, swt,  srx0, swc);
				swcg.drawLine(slx, swc,  slx, swb);
				swcg.drawLine(slx, swb,  srx1, swb);
				swcg.drawLine(srx1, swb,  srx0, swc);
				swcg.drawLine(imx0, imyt,  imx1, imyt );	  // i. b. masks top
				swcg.drawLine(imx0, imyb,  imx1, imyb ); // i. b. masks bot
				swcg.drawLine(omx0,omyt,  omx1, omyt );  // o. b. masks top
				swcg.drawLine(omx0,omyb, omx1, omyb ); // o. b. masks bot
				// Draw fixed switch parts
				swcg.setColor( getForeground ( ) );
				// ctr line
				swcg.drawLine(slx-3, swc,  srx0+3, swc);
				// fixed parts of inner boarder
				swcg.drawLine(ibx0, iby0,  ibx1, iby1); // left
				swcg.drawLine(ibx1, iby1,  ibx2, iby2);
				swcg.drawLine(ibx2, iby2,  ibx3, iby3);
				swcg.drawLine(ibx4, iby4,  ibx5, iby5); // right
				swcg.drawLine(ibx5, iby5,  ibx6, iby6);
				swcg.drawLine(ibx6, iby6,  ibx7, iby7);
				// fixed parts of outer boarder
				swcg.drawLine(obx0, oby0,  obx1, oby1); // left
				swcg.drawLine(obx1, oby1,  obx2, oby2);
				swcg.drawLine(obx2, oby2,  obx3, oby3);
				swcg.drawLine(obx4, oby4,  obx5, oby5); // right
				swcg.drawLine(obx5, oby5,  obx6, oby6);
				swcg.drawLine(obx6, oby6,  obx7, oby7);
				// add switchÕs title
				swcg.drawString( title, lx+5, by+15 );
				if( swState ) 
					{ 	// turn switch on
						swcg.drawLine(slx, swc,  slx, swt);
						swcg.drawLine(slx, swt,  srx1, swt);
						swcg.drawLine(srx1, swt,  srx0, swc);
						swcg.drawLine(srx0, swc,  slx, swc);
						// draw bottom inner mask
						swcg.drawLine(imx0, imyb,  imx1, imyb );
						// draw bottom outer mask
						swcg.drawLine(omx0, omyb,  omx1, omyb );
					}
				else	{ 	// turn switch off
						swcg.drawLine(slx, swc,  slx, swb); 
						swcg.drawLine(slx, swb,  srx1, swb);
						swcg.drawLine(srx1, swb,  srx0, swc);
						swcg.drawLine(srx0, swc,  slx, swc);
						// draw top inner mask
						swcg.drawLine(imx0, imyt,  imx1, imyt );
						// draw top outer mask
						swcg.drawLine(omx0, omyt,  omx1, omyt );
					}
			}

	}