/////////////////////////////////////////////////////////
// Module		SearchPanel.java
// Version		1.06
// Language		Java
// Author		Sudhakar Chandrasekaran (thaths@netscape.com)
// History
// 05/16/97		Adding vectors and crawling
//				removed the dependancy on search() method in
//				MyFrame.java
// 05/14/97		Added checking to prevent empty searches
//
// 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 1997.
////////////////////////////////////////////////////////



import java.awt.*;
import SearchForText;

public class SearchPanel extends Panel
{
	MyFrame myFrame;
	TextField searchString;
	Button searchButton, clearButton;
	
	// Constructor
	SearchPanel(MyFrame mf) {
		myFrame = mf;
		searchString = new TextField(30);
		searchButton = new Button("Search");
		clearButton = new Button("Clear");
		clearButton.disable();

		setLayout(new GridLayout(3,2));
		add(new Label("Search for :"));
		add(searchString);
		add(searchButton);
		add(clearButton);
	}
	
	public void paint(Graphics g) {
		Dimension d = size();
		Color bg = getBackground();
		
		g.setColor(bg);
		g.draw3DRect(0,0,d.width-1,d.height-1,true);
		g.draw3DRect(2,2,d.width-5,d.height-5,false);
	}
	
	public Insets insets() {
		return new Insets(3,3,3,3);
	}
	
	public Dimension minimumSize() {
		Dimension d = new Dimension(400,70);
		return d;
	}
		
	public Dimension preferredSize() {
		Dimension d = new Dimension(400,70);
		return d;
	}

	public String getSearchText() {
		return searchString.getText();
	}
	
	public boolean action(Event event, Object arg) {
    	Object target = event.target;
                   
        if (target == clearButton) {
        	searchString.setText("");
        	myFrame.resultPanel.clearList();
        	clearButton.disable();
        	return true;
        }

		if (target == searchButton) {
			// If no text entered, don't search
			if (getSearchText().length() == 0) {
				return false;
			}

			// Do the search
			myFrame.resultPanel.numOfHits = 0;			
			myFrame.clientSearch.pageDB.clear();
			myFrame.resultPanel.clearList();
			myFrame.currentPageNumber = 0;
			SearchForText searchForText;
			if (myFrame.optionsPanel.isCaseSensitiveSearch()) {
				searchForText = new SearchForText(myFrame, myFrame.clientSearch.openingPage, getSearchText());
			} else {
				searchForText = new SearchForText(myFrame, myFrame.clientSearch.openingPage, getSearchText().toLowerCase());
			}

			while (searchForText.isAlive()) {
				;
			}
			return true;
        }
		return super.handleEvent(event);
	}
}