//*****************************************************************************
//
// Beenish Chaudry, Geetika Tewari, Elif Tosun and
// Ileana Streinu
//
// Summer 1999, Fall 1999, Spring 2000
//
//*****************************************************************************
//
// FramePointComponentListener.java
//
//*****************************************************************************
//
// called in: FramePoint.java
//
//*****************************************************************************


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

class FramePointComponentListener extends ComponentAdapter
{
  
FramePoint bf;
  

  //***********************************
  //
  // Constructor
  //
  //***********************************

public FramePointComponentListener(FramePoint bff) 
  {
    super(); 
    bf = bff;
  }

  //***********************************
  //
  // componentResized
  //
  // invoked when the frame is resized 
  //
  //***********************************


public void componentResized(ComponentEvent e) {

  // basic: when the frame of reference is standard
  // Frame resized as done by the user

  if(bf.state.stateResize == StateResize.basic) {
	 bf.setSize(bf.getSize().width, bf.getSize().height);
	 bf.width = bf.getSize().width;
	 bf.height = bf.getSize().height;

  } //end wBasic

  // with AspectRatio preservation
  // when the frame of reference is set somewhere in the window
  // at center, or elsewhere

  if(bf.state.stateResize == StateResize.aspect) {

    //if origin is in center
    if(bf.state.stateOrigin == StateOrigin.center) {
      if(bf.getSize().width > bf.getSize().height) {
         bf.setSize(bf.getSize().width, bf.getSize().width);
         }
      else if(bf.getSize().height >= bf.getSize().width) {
         bf.setSize(bf.getSize().height, bf.getSize().height);
         }
    }//end wCenter

    //if origin is not the center, preserves the aspect ratio
    else if(bf.state.stateOrigin != StateOrigin.center) {
      if(bf.getSize().width > bf.getSize().height) {
	bf.setSize(bf.getSize().width, 
		             (int)((bf.getSize().width*bf.height)/bf.width));
	bf.ps.ChangeOrAfterIncrease();
	bf.ps.ChangeArrayAfterIncrease();
	bf.width = bf.getSize().width;
	bf.height = bf.getSize().height;
      }

      else if(bf.getSize().height >= bf.getSize().width) {
	//The floating point error needs to be fixed
	bf.setSize((int)((bf.getSize().height*bf.width)/bf.height),
		                           bf.getSize().height);
	bf.ps.ChangeOrAfterIncrease();
	bf.ps.ChangeArrayAfterIncrease();
	bf.width = bf.getSize().width;
	bf.height = bf.getSize().height;
      }

    }//end !wCenter
  }//end of wAspectRatio

  bf.setVisible(true);

}//end of componentResized


  //********************************
  //
  // other window event handlers
  //
  //********************************

public void componentHidden(ComponentEvent e) {
  }

public void componentMoved(ComponentEvent e) {
  }

public void componentShown(ComponentEvent e) {
  }

}//end class FramePointComponentListener