//*****************************************************************************
// ColorRadioCanvas.java
//
// 3/11/00
//
// Geetika Tewari, Victoria Manfredi, & Christie Rice
//
//
//*****************************************************************************

import java.awt.*;
import java.awt.event.*;
import java.applet.*;
import java.io.*;
import java.util.*;


public class ColorRadioCanvas extends Canvas implements ColorCanvasObserver

{

  FramePoint bf;  
  ColorFrame cf;
  Color rbColor;
  int whichColorCanvas;

  //***********************************
  //
  //  constructor  
  //
  //***********************************  
  ColorRadioCanvas(FramePoint bff, ColorFrame cff, Color rbColorr, int wcc)
  {
    super();
    
    bf = bff;
    cf = cff;
    whichColorCanvas = wcc;


    // Make sure the classes accessed in the line below have been constructed
    // before access is attempted

    cf.cp.cbp.cc.registerAsObserver(this);

    rbColor = rbColorr;


    setSize(20,20);
    setBackground(rbColor);


    
  }// end constructor


  
  //********************************
  //
  //  paint
  //
  //********************************
  public void paint(Graphics g)
  {
    g.setColor(rbColor);
    g.fillRect(0,0,20,20);
  
  }// end paint




  //*******************************
  //
  //  ColorCanvasHasChanged
  //
  //*******************************
  public void ColorCanvasHasChanged(ColorCanvas ccc)
  {
        if (whichColorCanvas == cf.CurRButton)
	  {
	    cf.RBColor[cf.CurRButton] = cf.curc;
	    rbColor = cf.curc;


	    switch (cf.CurRButton)
	      {
	      case Constants.PTFILL:
		bf.state.point.appearanceP.fillcolor = cf.curc;
		bf.ps.SetFillColorSelected(cf.curc);
		break;

	      case Constants.PTCON:
		bf.state.point.appearanceP.contcolor = cf.curc;
		bf.ps.SetContourColorSelected(cf.curc);
		break;

	      case Constants.BACKGRND:
		bf.pc.setBackground(cf.curc);
		break;

	      case Constants.GRID:
		bf.state.grid_line_color = cf.curc;
		break;

	      case Constants.AXIS:
		bf.state.axes_color = cf.curc;
		break;

	      case Constants.PARABOLA:
		bf.state.parabola_color = cf.curc;
		break;

	      default: System.out.println("other cases");

	      }
	    bf.pc.repaint();	
	    this.repaint();

	  }// end if

	    
  }// end ColorCanvasHasChanged



}//end of class ColorRadioCanvas