// File: FigConstVert.java
// Classes: FigConstVert
// Original Author:Kedar Patankar - Alberto Medina
// $Id: FigConstVert.java,v 1.1.1.1 1997/02/27 20:52:40 chandra Exp $

package uci.graphedit;

import java.awt.Color;
import java.awt.Graphics;
import java.awt.FontMetrics;
import java.awt.Rectangle;
import java.awt.Point;
import java.util.Hashtable;

/** Primitive Fig to draw rectangles on a LayerDiagram */

public class FigConstVert extends Fig {

  /* Label associated with the Construction Class */
  private String _label;

  /* number of handles on the boundary rectangle */
  public static final int numHandles = 8;

  /** Construct a new ConstVert w/ the given position, size, and line color */
  public FigConstVert(Integer x, Integer y, Integer r_width, Integer r_height, Color r_color, Color f_color, String label){
    super(x.intValue(), y.intValue(), r_width.intValue(), r_height.intValue(), r_color, f_color, numHandles);
	_label = label;
  }

  /** Construct a new ConstVert w/ the given position, size, and attributes */
  public FigConstVert(int x, int y, int r_width, int r_height, Hashtable gAttrs){
    super(x, y, r_width, r_height, Color.black, null, numHandles);
    setGraphicAttributes(gAttrs);
  }

  /** Construct a new FigRect w/ the given position, size, line color,
   * and fill color*/
  public FigConstVert(int x, int y, int r_width, int r_height,
		 Color r_color, Color f_color) {
    super(x, y, r_width, r_height, r_color, f_color, numHandles);
  }


  /** Reply the vertex name */

  public String get_label()
  {
	  return _label;
  }

  /** Set the vertex name */

  public void set_label(String name,Document d)
  {

	  int width,height;
	  width=d.vertexSize().x;
	  height=d.vertexSize().y;
	  Graphics g = d.getGraphics();
	  g.setFont(d.getFont());
      FontMetrics fm =g.getFontMetrics();

	  int maxnooflines, nooflines, letterHeight,stringWidth;
	
	  stringWidth = fm.stringWidth(name);
	  letterHeight = fm.getHeight();

	  while(true)
	  {
		maxnooflines=(height-2)/letterHeight;
		nooflines=(stringWidth/(width-4)) + 1;
		if (nooflines>maxnooflines)
		{
			width = (int)(1.05 * (double)width);
			height =(int)(1.1 * (double)height);
		}
		else
			break;
	  }
	  _label=name;
	  objectWidth=width;
	  objectHeight=height;
  }

  /** Draw this ConstVert */
  public void draw(Graphics g)
  {
    int x = position().x;
    int y = position().y;
    int width=objectWidth-2;
	int height=objectHeight-2;

	if (objectFillColor != null)
	{
      g.setColor(objectFillColor);
      g.fillRect(x,y,width,height);
    }
    g.setColor(objectLineColor);
    g.drawRect(x,y,width,height);

	FontMetrics fm =g.getFontMetrics(g.getFont());

	int stringx = x + 2;
	int stringy = y + 2;

	int letterheight = fm.getHeight();

	int label_length=_label.length();

	for (int i=0,k=0;i<label_length;k++)
	{
		String s = new String();
		for(int j=0;(i<label_length)&&((j+fm.charWidth(_label.charAt(i)))<(width-2));i++)
		{
			s = s + _label.charAt(i);
			j+=fm.charWidth(_label.charAt(i));
		}
		g.drawString(s,stringx, stringy+(k*letterheight)+fm.getMaxAscent());
	}
  }



  /** Position and draw handles on this FigRect */
  public void drawSelected(Graphics g) { }

  /** When this FigRect is selected in an Editor, use SelectionHandles
   * to record that fact and process events */
  public Selection selectionObject() { return new SelectionHandles(this); }

  /** Reply true if the given mouse coordinates are inside or "near"
   * this FigRect. Needs-More-Work: I whould have separate near() and
   * inside() functions. */
  public boolean inside(int x, int y) {
    Rectangle rect1, rect2;
    Point p = position();
    /* Set the bounding rectangle*/
    rect1 = new Rectangle(p.x - GRIP_MARGIN,
			  p.y - GRIP_MARGIN,
			  objectWidth  + GRIP_MARGIN * 2,
			  objectHeight + GRIP_MARGIN * 2);
    rect2 = new Rectangle(p.x + GRIP_MARGIN,
			  p.y + GRIP_MARGIN,
			  objectWidth - GRIP_MARGIN * 2,
			  objectHeight - GRIP_MARGIN * 2);

    if (objectFillColor != null) return rect1.inside(x,y);
    else return rect1.inside(x,y) && !rect2.inside(x,y);
  }



} /* end of FigConstVert class */