package com.dwave.util;  
/*
 *  DockingPanel
 *
 *   Copyright (C) 2000  D-Wave Systems Inc.
 *
 *   This program is free software; you can redistribute it and/or modify
 *   it under the terms of the GNU General Public License as published by
 *   the Free Software Foundation; either version 2 of the License, or
 *   (at your option) any later version.
 *
 *   This program is distributed in the hope that it will be useful,
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *   GNU General Public License for more details.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with this program; if not, write to the Free Software
 *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */


import javax.swing.*;
import java.util.Hashtable;
import java.util.Enumeration;
import java.awt.event.*;
import java.awt.*;
import com.dwave.layout.*;
import com.dwave.gui.DWaveToolbar;
          
/**
 * @author  Michael Coury
 * @author  J.P. Hilton
 * @version 1.0 10/20/2000   
 *
 * @see com.dwave.gui.DWaveToolbar
 * @see com.dwave.util.DockingException
 */
public class DockingPanel extends JPanel implements java.io.Serializable {
  int orientation;
  Hashtable toolbarStorage;
  int totalx, totaly; 
  public static final int VERTICAL = 0,
                          HORIZONTAL = 1;
  
  public DockingPanel() { }

  public DockingPanel(int newOrientation) {
    super ();
    if (newOrientation  == 0 || newOrientation  == 1) {
      orientation = newOrientation;

      if(orientation ==  DockingPanel.HORIZONTAL) {
        FlowLayout flowLayout = new FlowLayout(FlowLayout.LEFT);
        this.setLayout (flowLayout);
      }
      else {
        VerticalFlowLayout flowLayout = new VerticalFlowLayout(VerticalFlowLayout.TOP);
        this.setLayout (flowLayout);
      }

      this.setVisible(true);
      toolbarStorage = new Hashtable(0, 0.75f);
    }
  }

  public int getOrientation () { return orientation; }
  public void setOrientation(int orientation) { this.orientation = orientation; }

  public void trackToolbar(MouseEvent me, DWaveToolbar aToolbar) {
    if(!aToolbar.isDocked())
      aToolbar.setDragHandleColor(Color.red);
  }

  public void dockToolbar(DWaveToolbar aToolbar) {
    if(!aToolbar.isDocked()) {
      aToolbar.setOwner(this);
      if(aToolbar.getOrientation() != this.orientation)
        try {
          aToolbar.setOrientation(this.orientation);
          aToolbar.toolbarLayout();
        }
        catch(DockingException de) { de.printStackTrace(); }

      JPanel bar = aToolbar.getPanel();
      aToolbar.setDragHandleColor(Color.darkGray);
      toolbarStorage.put(aToolbar.getTitle(), bar);
      int w = bar.getWidth(),  h = bar.getHeight();
      aToolbar.setDocked(true);

      switch(orientation) {
        case(DockingPanel.HORIZONTAL):
          this.add(bar);
          totalx += w;
         break;
        case(DockingPanel.VERTICAL):
          this.add(bar);
          totaly += h;
         break;
        default: break;
      }
      bar.setVisible(true);
    }
  }
  public void undockToolbar(DWaveToolbar aToolbar) {
    if(aToolbar.getOrientation() != DockingPanel.HORIZONTAL) {
      aToolbar.setOrientation(DockingPanel.HORIZONTAL);
      try { aToolbar.toolbarLayout(); }
      catch(DockingException de) { de.printStackTrace(); }
    }
    toolbarStorage.remove(aToolbar.getTitle());
  }
}