/////////////////////////////////////////////////////////
// Module		MyFrame.java
// Version		1.04
// Language		Java
// Author		Sudhakar Chandrasekaran (thaths@netscape.com)
// History		Last Updated 12/4/97
// 05/17/97		House cleaning
// 05/16/97		Dramatic redesign based on vectors and crawlers
//				REmoved the search() method
// 04/20/97		version ++
//				Added brief help
// 12/04/97		Added MenuBar and menu items.
//
// Legalese                
// Copyright (C) 1996-1997 Sudhakar Chandrasekharan  
//
// 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.  Writers of free software 
// cannot afford getting sued!
// 
// 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., 
// 675 Mass Ave., Cambridge, MA 02139, USA.
//
// Sudhakar "Thaths" Chandrasekharan, 20 Apr 1996.
////////////////////////////////////////////////////////

// First import all the standard packages that we need
import java.awt.*;

// Import custom packages
import SearchForText;

class MyFrame extends Frame
{
	// Data Members
	ClientSearch clientSearch;

	// The three panels inside this Frame.
	SearchPanel searchPanel;
	OptionsPanel optionsPanel;
	ResultPanel resultPanel;

	// The number of the page being currently searched
	// This should be lesser than clientSearch.totalPages
	int currentPageNumber;	

	// Constructor
	MyFrame(ClientSearch cs, Frame frame, String title)
	{
		super(title);
		clientSearch = cs;

		// File menu and it's elements
		Menu fileMenu = new Menu("File");
		fileMenu.addSeparator();
		fileMenu.add("Close");

		// Help menu and it's elements
		Menu helpMenu = new Menu("Help");
		helpMenu.add("Help on searching...");
		helpMenu.addSeparator();
		helpMenu.add("About...");

		// The menu bar at the top
		MenuBar menuBar = new MenuBar();
		menuBar.add(fileMenu);
		menuBar.add(helpMenu);
		menuBar.setHelpMenu(helpMenu);
		
		// Get the bg and fg colors from the applet and 
		// set the bg and fg of this frame to be the same 
		setBackground(cs.getBackground());
		setForeground(cs.getForeground());

		// Add the menubar and it's menu items to this frame
		setMenuBar(menuBar);
//		show();

		// Create a GridBagLayout and its GridBagConstraints 
		// and start adding the panels one by one
		GridBagLayout gridbag = new GridBagLayout();
		GridBagConstraints c = new GridBagConstraints();
		setLayout(gridbag);

		// Specify the constraints for the searchPanel
		c.insets = this.insets();	// insets for panel same as for Frame
		c.ipadx=2;					// padding for panel
		c.ipady=2;
		c.gridwidth=GridBagConstraints.REMAINDER;	// Last Element in its row
		c.fill=GridBagConstraints.NONE;				// Don't fill the whole row
		c.anchor = GridBagConstraints.CENTER;		// Center the element in row
		
		// Create an instance of searchPanel and add it
		searchPanel = new SearchPanel(this);
		gridbag.setConstraints(searchPanel, c);
		add(searchPanel);
		
		// Constaints of optionsPanel same as those of searchPanel
		// Create an instance of optionsPanel and add it
		optionsPanel = new OptionsPanel(this);
		gridbag.setConstraints(optionsPanel,c);
		add(optionsPanel);

		// Constraints of resultsPanel almost the same as 
		// those of optionsPanel
		c.gridheight = GridBagConstraints.REMAINDER;	// Last column
		
		// Create an instance of resultsPanel and add it
		resultPanel = new ResultPanel(this);
		gridbag.setConstraints(resultPanel, c);		
		add(resultPanel);
	}
	
	// Start painting the chrome
	public void paint(Graphics g)
	{
		Dimension d = size();
		g.setColor(new Color(0,0,255));	// Blue

		// Draw a nice 3-D box around the applet
		g.draw3DRect(0,0,d.width-2,d.height-2,true);
		g.draw3DRect(2,2,d.width-5,d.height-5,false);
	}
	
	// The padding for this frame
	public Insets insets()
	{
		return new Insets(3,3,3,3);
	}

    // Event Handler
	// If 'Close' selected, hide() this frame
	// If 'Help on searching...' selected, create the helpDialog
	// If 'About' selected, crate the aboutDialog
	// The three panels will take care of their own events
	public boolean action(Event event, Object onWhat)
	{
		if (event.target instanceof MenuItem) {
			String label = (String) onWhat;
			if (label.equals("Close")) {
				hide();
			} else if (label.equals("Help on searching...")) {
				HelpDialog helpDialog = new HelpDialog(this);
			} else if (label.equals("About...")) {
				AboutDialog aboutDialog = new AboutDialog(this);
			}
			return true;
		} else if (event.id == Event.WINDOW_DESTROY) {
			hide();
			return true;
//			this.dispose();
        } else {
			return super.handleEvent(event);
		}
    }
}