Language Java Nosugar Graphics Draw Code Drawselector.java

// 
//	DrawSelector class
//	part of the set of documents known as Java no sugar.
//	Copyright (c) 1996 Sunil Gupta, sunil@magnetic.demon.co.uk
//	placed into the public domain by the author
//
import java.applet.*;
import java.awt.*;
import DrawSelectorCanvas;

public class DrawSelector extends Applet
{
	//*******************************************************************
	// instance variables
	//*******************************************************************
	Label label;
	List list;
	Button go_button, stop_button;
	DrawSelectorCanvas draw_surface;
	
	
	//*******************************************************************
	// applet methods
	//*******************************************************************
	public void init()
	{
		Panel controls, buttons;
		
		// --------------------------------------
		// create the interface items to display
		// --------------------------------------
		label = new Label("Drawing functions");
		
		list = new List(10,  true);
		list.addItem("draw3DRect");
		list.addItem("drawArc");
		list.addItem("drawLine");
		list.addItem("drawOval");
		list.addItem("drawPolygon");
		list.addItem("drawRect");
		list.addItem("drawRoundRect");
		list.addItem("fill3DRect");
		list.addItem("fillArc");
		list.addItem("fillOval");
		list.addItem("fillPolygon");
		list.addItem("fillRect");
		list.addItem("fillRoundRect");
		list.setMultipleSelections(false);
		
		go_button = new Button("Go");
		stop_button = new Button("Stop");
		draw_surface = new DrawSelectorCanvas();
		draw_surface.set_clear_flag(false);
		
		//---add controls to a control panel.-------------
		buttons = new Panel();
		buttons.setLayout( new GridLayout(2,1));
		buttons.add(go_button);
		buttons.add(stop_button);
		
		
		//---------------add them ------------------------
		controls = new Panel();
		controls.setLayout(new BorderLayout());
		controls.add("North", label);
		controls.add("Center", list);
		controls.add("South", buttons);
		
		//------------------and now a border layout------------
		this.setLayout(new BorderLayout());
		this.add("West", controls);
		this.add("Center", draw_surface);
	}
	
	public boolean action(Event event, Object o)
	{
		String draw_mode;

		if (event.target == go_button)
		{
			 draw_mode =  list.getSelectedItem();
			 if (draw_mode != null)
			 {
			    draw_surface.stop();
			    draw_surface.draw_shapes(draw_mode);
			  }
		}
		else if (event.target == stop_button)
		{
			draw_surface.stop();
		}
		return (true);
	}

	public String getAppletInfo()
	{
		return "TEST APP VERSION 2";
	}
	
}

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