// File: PropertyWindow.java
// Classes: PropertyWindow
// Author: Kedar Patankar

package edu.neu.ccs.demeter.tools.apstudio.graphedit;

import java.awt.Dialog;
import java.awt.Frame;
import java.awt.Panel;
import java.awt.Label;
import java.awt.CardLayout;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Point;
import java.awt.Dimension;
import java.awt.ScrollPane;
import java.awt.Adjustable;

import java.awt.event.WindowListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

import javax.swing.JScrollPane;

/* Purpose : Display and let modify the properties of vertices and edges of class graph */
public class PropertyWindow extends Frame
{
	private Panel _propertyPanel,_defaultPanel,_vertPanel,_constEdgePanel,_inheritPanel,_statusPanel;
	private String _title;
	private Editor _editor;
	private CardLayout _cardLayout;
	
	private Label _statusInfo;


	public void setDefaultMessage()
	{
		showMessage("Ready");
	}

	public void showMessage(String message)
	{
		_statusInfo.setText(message);
		invalidate();
	}

	public PropertyWindow(Editor parent)
	{
//		super(parent,"Properties",false);
		super("Properties");
		_editor = parent;
		initialisePanel();
		_cardLayout.show(_propertyPanel,"Default");
// jdk 1.1 type window event handling
		addWindowListener(new PWAdapter()); // using inner class for window handling.

		_statusInfo = new Label("Ready                                                           ");

		_statusPanel = new Panel();
		_statusPanel.setLayout(new BorderLayout());
		_statusPanel.add("West",_statusInfo);
		_statusPanel.setBackground(Color.lightGray);

		add("South",_statusPanel);
		pack();
		setSize(300,500);
		setVisible(true);
	}

	private void initialisePanel()
	{
		_propertyPanel=new Panel();
		_cardLayout=new CardLayout();
		_propertyPanel.setLayout(_cardLayout);


		ScrollPane sp = new ScrollPane(ScrollPane.SCROLLBARS_AS_NEEDED);
		Adjustable vadjust = sp.getVAdjustable();
		Adjustable hadjust = sp.getHAdjustable();
		vadjust.setUnitIncrement( 50 );
		hadjust.setUnitIncrement( 50 );
		sp.add(_defaultPanel = new DefaultPanel(_editor,this));
		
		_propertyPanel.add("Default",sp);

		sp = new ScrollPane(ScrollPane.SCROLLBARS_AS_NEEDED);
		vadjust = sp.getVAdjustable();
		hadjust = sp.getHAdjustable();
		vadjust.setUnitIncrement( 50 );
		hadjust.setUnitIncrement( 50 );
		sp.add(_vertPanel = new VertPanel(_editor,this));
		
		_propertyPanel.add("Vert",sp);
//		_propertyPanel.add("TermVert",new TermPanel(_editor));
//		_propertyPanel.add("InterfaceVert",new InterfacePanel(_editor));
		sp = new ScrollPane(ScrollPane.SCROLLBARS_AS_NEEDED);
		vadjust = sp.getVAdjustable();
		hadjust = sp.getHAdjustable();
		vadjust.setUnitIncrement( 50 );
		hadjust.setUnitIncrement( 50 );
		sp.add(_constEdgePanel = new ConstEdgePanel(_editor,this));
		_propertyPanel.add("ConstEdge",sp);

		sp = new ScrollPane(ScrollPane.SCROLLBARS_AS_NEEDED);
		vadjust = sp.getVAdjustable();
		hadjust = sp.getHAdjustable();
		vadjust.setUnitIncrement( 50 );
		hadjust.setUnitIncrement( 50 );
		sp.add(_inheritPanel = new InheritEdgePanel(_editor));
		_propertyPanel.add("InheritanceEdge",sp);

		_propertyPanel.add("BlankSheet",new Panel());

		add("Center",_propertyPanel);
		pack();
	}

	public void showBlankPropertySheet()
	{
		_cardLayout.show(_propertyPanel,"BlankSheet");
	}

	public void showDefault(Document d)
	{
		_cardLayout.show(_propertyPanel,"Default");
		((DefaultPanel)_defaultPanel).setValues(d);
	}
	
	public void showVert(Perspective p)
	{
		_cardLayout.show(_propertyPanel,"Vert");
		UVertex u = (UVertex) p.owner();
		Point location = p.position();
		Point size = p.get_figure().get_dimensions();
		if(u instanceof UConstVertex)
			((VertPanel)_vertPanel).setValues((UConstVertex)u,location, size);
		else
			((VertPanel)_vertPanel).setValues((UAltVertex)u,location,size);
	}

// Private methods these are called from above method using case analysis

	private void showTermVert()
	{
		_cardLayout.show(_propertyPanel,"TermVert");
	}
	private void showInterfaceVert()
	{
		_cardLayout.show(_propertyPanel,"InterfaceVert");
	}

	public void showEdge(ArcPerspective a)
	{
		UEdge u = (UEdge) a.owner();
		if(u instanceof UConstEdge)
			showConstEdge(((UConstEdge)u),a);
		else
		if(u instanceof UAltEdge)
			showAltEdge(a);
		else
			showInheritEdge(a);
	}

// Private methods these are called from above method using case analysis

	private void showConstEdge(UConstEdge u,ArcPerspective a)
	{
		_cardLayout.show(_propertyPanel,"ConstEdge");
		String cardinality = ((FigConstEdge)a.get_figure()).get_cardinality();
		String before = u.get_beforeSyntax();
		String after = u.get_afterSyntax();
		String name = ((FigConstEdge)a.get_figure()).get_label();
		String from = a.get_SourceName();
		String to = a.get_DestinationName();
		((ConstEdgePanel)_constEdgePanel).setValues(u,name,cardinality,before,after,from,to);
	}
	private void showInheritEdge(ArcPerspective a)
	{
		_cardLayout.show(_propertyPanel,"InheritanceEdge");
		String from = a.get_SourceName();
		String to = a.get_DestinationName();
		((InheritEdgePanel)_inheritPanel).setValues(from,to);
	}
	private void showAltEdge(ArcPerspective a)
	{
		_cardLayout.show(_propertyPanel,"InheritanceEdge");
		String from = a.get_SourceName();
		String to = a.get_DestinationName();
		((InheritEdgePanel)_inheritPanel).setValues(to,from);
	}


// inner class PWAdapter
	class PWAdapter extends WindowAdapter
	{
		public void windowClosing(WindowEvent event)
		{
			_editor.setMenuPropertySheetState(false);
			setVisible(false);
		}
	}
} /* end class PropertyWindow */