//*****************************************************************************
//
// Beenish Chaudry, Geetika Tewari, Elif Tosun and
// Ileana Streinu
//
// Summer 1999, Fall 1999, Spring 2000
//
//*****************************************************************************
//
// HandlerMouseMotionPoint.java
//
//*****************************************************************************

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

class HandlerMouseMotionPoint extends MouseMotionAdapter{

FramePoint bf;

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


  //**************************************************
  //
  // MouseDragged
  //
  //**************************************************


public void mouseDragged(MouseEvent e) {

  Point pt = e.getPoint();
  bf.displacement.x = bf.displacement.y = 0;

  if(bf.selNode != null)
    {
      bf.displacement.x = pt.x - bf.selNode.data.x;
      bf.displacement.y = pt.y - bf.selNode.data.y;
    };
  
  // if the mouse click was for setting the origin, restore state
  
  if (bf.state.stateMouse == StateMouse.originP) 
    {
      // update relative coordinates of the points, as they change
      bf.ps.changeOrigin(pt);
      bf.state.RestoreStateMouse();
      
    }//end setting the origin
  


  
  // if the point is meant to be inserted
  
  else if(bf.state.stateMouse == StateMouse.insertP) 
    {
      if (bf.selNode != null)  bf.selNode.data.setPointCoord(pt);
    }

  
  // if the point was meant to be moved
  
  else if(bf.state.stateMouse == StateMouse.moveP)
    {
      if (bf.selNode != null)
	{
	  // one point only, or all selected points?
	  if(bf.selNode.data.selected == StateSelect.not)
	    {
	      bf.selNode.data.setPointCoord(pt);
	      bf.ps.MovePoint(bf.selNode.data);
	    }
	  else
	    {
	      bf.ps.TranslateSelected(bf.displacement);
	    }
	}
    }
  

  // if the label of the point was meant to be moved

  else if(bf.state.stateMouse == StateMouse.moveLP)
    {
      if (bf.selNode != null)
	{
	  // one point only, or all selected points?
	  if(bf.selNode.data.selected == StateSelect.not)
	    {
	      bf.selNode.data.MoveLabelPoint(pt);
	    }
	  else
	    {
	      bf.ps.TranslateLPSelected(bf.displacement);

	    }
	}
    }


  // if the coordinates of the point were meant to be moved

  else if(bf.state.stateMouse == StateMouse.moveCP)
    {
      if (bf.selNode != null)
	{
	  // one point only, or all selected points?
	  if(bf.selNode.data.selected == StateSelect.not)
	    {
	      bf.selNode.data.MoveCoordPoint(pt);
	    }
	  else
	    {
	      bf.ps.TranslateCPSelected(bf.displacement);

	    }
	}
    }


  // if selecting a rectangle of points 
  // ???

  else if(bf.state.stateMouse == StateMouse.selectR)
    {
      bf.p2.x = pt.x;
      bf.p2.y = pt.y;

      // p1 is first corner of rectangle
      // p2 is second corner of rectangle
      // look into the set of points, at all points with coordinates
      // inside rectangle p1, p2
      // select them with point.selected = StateSelect.yes

      bf.ps.RectSelect();
   
    }


  bf.crtPt = null;
  bf.pc.repaint();
  
  if(bf.lf != null) bf.lf.lc.repaint();   
  
  
} //ends mouseDragged
  
}// end class HandlerMouseMotionPoint