/*
Copyright 2000 by Ralph Hartley
This software is licenced under the terms of the
Gnu Public Licence
*/
import java.util.*;
import javax.swing.*;
import java.awt.*;
import java.awt.geom.*;
import java.awt.event.*;
import java.awt.Graphics2D;

/**A box is a rectangle. They can be used for borders etc.
 */
public class Box extends Sub implements ActionListener {

  private static final long serialVersionUID = Version.getSUID();

  /**
   *The thickness to draw the border.
   */
  Size bordersize = null;

  /**
   *The Style to draw the border.
   */
  LineType borderstyle = null;

  /**
   *The Color to draw the border.
   */
  Color bordercolor = Color.black;

  /**
   *The Fill to paint the interior.
   */
  Fill fill = null;

  /**
   *The color to paint the interior.
   */
  Color color = null;

  /**This constructer may not be used.
   *I should check and remove if possible. (it's hard to tell because
   *symbols are made different ways).
   */
  public Box(){}

  /**Create a new box at a given position.
   *If arg is a rectangle, it gives the box's shape.
   */
  public Box(Point2D where,View view,Object arg) {
    super(where,view,(arg instanceof Rectangle2D)?arg:new Rectangle2D.Double(-0.5,-0.5,1,1));
    editscale = true;
    editrotation=false;
    subaspect = 1.0;
    init(where,view);
  }

  transient JTextField aspfield = null;
  transient JComboBox bordersizefield=null;
  transient JComboBox borderstylefield=null;
  transient ColorBox bordercolorbox=null;
  transient JButton fillbutton=null;
  transient ColorBox colorbox=null;

  transient Library filllib = null;

  public int getLevel() {return(super.getLevel()+1);}

  public static String NOFILL = "Transparent";

  public void getPropertyEdit(Object[] edits,int slot,Set sub, Symbol parent) {
    JPanel res = new JPanel();
    res.setLayout(new BoxLayout(res,BoxLayout.Y_AXIS));
    edits[slot] = res;
    res.setName("Box");
 
    aspfield = PrefEditor.addDouble(res,subaspect,"Aspect Ratio");

    JPanel row = new JPanel();
    row.setLayout(new BoxLayout(row,BoxLayout.X_AXIS));

    row.add(new JLabel("Border thickness "));
    bordersizefield = new JComboBox(Size.getAll(Size.class));
    bordersizefield.setSelectedItem(bordersize);
    row.add(bordersizefield);
    res.add(row);

    row = new JPanel();
    row.setLayout(new BoxLayout(row,BoxLayout.X_AXIS));

    row.add(new JLabel("Border Style "));
    borderstylefield = new JComboBox(LineType.predefined.toArray());
    borderstylefield.setSelectedItem(borderstyle);
    row.add(borderstylefield);
    res.add(row);

    bordercolorbox=new ColorBox(bordercolor,"Border Color");
    res.add(bordercolorbox);

    row = new JPanel();
    row.setLayout(new BoxLayout(row,BoxLayout.X_AXIS));
/*
    row.add(new JLabel("Fill "));
    filllib = new Library(new java.io.File(Carto.filebase,"fill"),
        		      new ImageIcon(getClass().getResource("icons/fill.gif")),
        		      null);
    fillbutton = new JButton();
    fillbutton.addActionListener(this);
    fillbutton.setIcon(filllib);
    fillbutton.setToolTipText("Set fill for box");
    row.add(fillbutton);

//    JButton button = null;

//    row.add(button = new JButton(NOFILL));
//    button.addActionListener(this);

    res.add(row);
*/

//    row = new JPanel();
//    row.setLayout(new BoxLayout(row,BoxLayout.X_AXIS));

    colorbox=new ColorBox(color,"Fill Color");
    row.add(colorbox);

    JButton butt = new JButton(NOFILL);
    row.add(butt);
    butt.addActionListener(this);

    res.add(row);

    super.getPropertyEdit(edits,slot-1,sub,parent);
  }

  public void acceptPropertyEdit() {
    if (aspfield!=null) {
      double newasp = PrefEditor.readDouble(aspfield);
      if (newasp!=subaspect) {
        subaspect=newasp;
        reshape();
      }
//    System.out.print("bordersize = "+bordersize);
      bordersize = (Size)bordersizefield.getSelectedItem();
//    System.out.println(" ----> "+bordersize);
      bordercolor = bordercolorbox.color;
      borderstyle = (LineType)borderstylefield.getSelectedItem();
//      fill = filllib.getSelected();
      color = colorbox.color;

      aspfield = null;
      bordersizefield=null;
      borderstylefield=null;
      bordercolorbox=null;
      fillbutton=null;
      colorbox=null;
      filllib = null;
    }
    super.acceptPropertyEdit();
  }

  public void abandonPropertyEdit() {
    aspfield = null;
    bordersizefield=null;
    borderstylefield=null;
    bordercolorbox=null;
    fillbutton=null;
    colorbox=null;
    filllib = null;

    super.abandonPropertyEdit();
  }

  public void actionPerformed(ActionEvent e) {    
    fill = null;
    colorbox.color = null;
//    filllib.modalSelect();
  }

  /**
   *Get the edit modes that are supported.
   */
  protected Vector getEditModes() {
    Vector res = super.getEditModes();
    res.add("Aspect");
//    if (size==null || size.equals(Size.none))
    res.add("Scale & Aspect");
    return(res);
  }

  public Area getIn(View view) {
    if (view.dontShowIn!=null && view.dontShowIn.contains(this)) return(new Area());
    Area res = new Area(getShape(view.trans));
/*
    if (view.passpriority!=null) {
      Set mypri = (Set)view.passpriority.get(this);
      if (mypri!=null)
        for (Iterator it = mypri.iterator(); it.hasNext();) {
          Passage mask = (Passage)it.next();
          int relation = ((Integer)passages.get(mask)).intValue();
          if (relation==Passage.OVER || relation==Passage.UNDER)
            res.subtract(mask.getIn(view));
        }
    }
*/
    return(res);
  }

  /** Paint the borderary of the box.
   *Unless overriden, that is all there is to see.*/
  public void paint(View view) {
    if (!view.visible.isMember(this)) return;
    super.paint(view);
    Point2D tpos = new Point2D.Double();
    Point2D tpos2 = new Point2D.Double();
//    located=false;
    locate();

    GeneralPath path = new GeneralPath();

    view.trans.transform(corners[0],tpos);
    path.moveTo((int)tpos.getX(),(int)tpos.getY());

    for (int i=1;i<4;i++) {
      view.trans.transform(corners[i],tpos);
      path.lineTo((int)tpos.getX(),(int)tpos.getY());
    }
    path.closePath();

    Graphics2D gr = (Graphics2D)view.draw;
    Paint realpaint=null;
    if (fill!=null) realpaint = fill.getPaint(view,path);
    if (color!=null) realpaint = color;
    if (realpaint!=null) {
      Paint pa = gr.getPaint();
      gr.setPaint(realpaint);
      gr.fill(path);
      gr.setPaint(pa);
    }
    
//    System.out.print("bordersize = "+bordersize);
    if (bordersize==null) bordersize = (Size)Size.lookup(Size.class,"One Pixel");
//    System.out.println(" -> "+bordersize);
    if (bordercolor==null) bordercolor = Color.black;
    if (borderstyle==null) borderstyle = LineType.lookup("Generic");

    SavableStroke stroke = borderstyle.getStroke(bordersize.getSize(view.mapscale));
    if (stroke!=null) {
      Stroke st = view.draw.getStroke();
      Color color = view.draw.getColor();
      view.draw.setStroke(stroke);
      view.draw.setColor(bordercolor);
//      stroke.setFlip(current.flip);y
//      Shape shape = view.trans.createTransformedShape((GeneralPath)subpath.elementAt(i));
      view.draw.draw(path);
      view.draw.setStroke(st);
      view.draw.setColor(color);
    }
  }

  /** Paint the contents of the box.
   *A box has no contents, but we must define this to
   *avoid making box abstract.
   */
  public void paintContents(View view) {}
}