/*
	3magic Coffee Table Tutorial 11
	Tutorial11.java - Custom Drawing of Cells.

	© 1997-1999 3magic.  All rights reserved worldwide.
*/

import java.awt.*;
import java.applet.*;
import java.io.*;
import java.net.*;
import java.util.*;

import CoffeeTable.Grid.*;

import MyDate;
import MyRank;
import MyGridPanel;

public class Tutorial11 extends Applet
{
	// Our grid.
	GridPanel fGrid;
	
	// Rows and Columns;
	int fNumCols = 10;
	int fNumRows = 42;
	
	/**
	 * Initialize.
	 */
	public void init() {
		// Let's use a BorderLayout to help us with the user input areas.
		setLayout(new BorderLayout());

		// Instantiate a new MyGridPanel with the specified rows and columns 
		// and other defaults like cell selection, row and column headers, 
		// row and column lines enabled and with scrollbars.
		// MyGridPanel is customized to do image drawing in column 2.
		fGrid = new MyGridPanel(fNumRows, fNumCols);
		
		// Make room for the images.
		fGrid.setRowHeight(32);
		
		// Show the row headers.
		fGrid.setRowHeaderWidth(40);
		fGrid.setRowNumbers(true);
		
		// Let's use Times, plain, 9-point.
		fGrid.setGridFont(new Font("TimesRoman", Font.PLAIN, 9));
        
		// Set the background color to light yellow.
		fGrid.setGridBackground(new Color(255, 255, 230));
       	
		// Set the grid lines to red.
		fGrid.setLineColor(Color.red);
       	
		// CONFIGURE SELECTIONS AND HIGHLIGHTING  -----------------------
		// Enable selection by rows.
		fGrid.setRowSelection(true);

		// Choose the selection highlighting colors.
		fGrid.setHighlightColor(Color.blue);

		// CONFIGURE SORTING  ------------------------------------------
		// Enable sorting for all columns
		fGrid.setSortEnable(true);

		// Disable sorting for the image column.
		fGrid.setSortEnable(2, false);

		// Set sort column color to a very light gray.
		fGrid.setSortColumnColor(new Color(0xEFEFEF));

		// USE CUSTOM SORTING BY OVERRIDING GRIDDATA -------------------
		fGrid.setGridData(new MyGridData(fNumRows, fNumCols), false);
		
		// Add the grid into the applet panel
		add("Center", fGrid);

		// Read in the data.
		this.readData("presidents.11.txt");

		Label message = new Label("");
		message.setFont(new Font("TimesRoman", Font.PLAIN, 10));
		message.setText("Argent Coffee Table version " + fGrid.getVersionString() + " \u00A9 1996-1998 Argent Software");
		add("South", message);
		
	}

	/**
	 * Read data from text file.
	 */
	void readData(String dataFile) {
		if (dataFile != null) {
			try {
				// Open the file.
				URL url = new URL(getCodeBase(), dataFile);
				DataInputStream in = new DataInputStream(url.openStream());

				// The first line are the column widths
				String line = in.readLine();
				StringTokenizer st = new StringTokenizer(line, "\t");
				for (int col = 1; col <= fNumCols; col++) {
					if (st.hasMoreTokens()) {
						// Set widths of each column.
						int width = Integer.parseInt(st.nextToken());
						fGrid.setColWidth(col, width, true, true);
					}
				}
				
				// The second line are the column headers
				line = in.readLine();
				st = new StringTokenizer(line, "\t");
				for (int col = 1; col <= fNumCols; col++) {
					if (st.hasMoreTokens()) {
						// Set the labels for each column.
						fGrid.setColHeaderText(col, st.nextToken(), false);
					}
				}
				
				// Create a MediaTracker for the images.
				MediaTracker tracker = new MediaTracker(this);
				
				// The real data follows, read and parse one line at a time.
				int row = 1;
				while ( row <= fNumRows ) {
					line = in.readLine();
					if (line == null) break;
					st = new StringTokenizer(line, "\t");
					for (int col = 1; col <= fNumCols; col++) {
						if (st.hasMoreTokens()) {
							String str = st.nextToken();
							if (col == 1) {
								// Column 1 are the rankings.
								fGrid.setCellData(col, row, MyRank.parseMyRank(str), false);
							} else if (col == 2) {
								// Column 2 are the images.
								URL imageURL = new URL(getCodeBase(), "presidents/"+str);
								Image im = Toolkit.getDefaultToolkit().getImage(imageURL);
								fGrid.setCellData(col, row, im, false);
								
								// Let's track it so we can wait for all to load.
								tracker.addImage(im, row);
							} else if (col == 7) {
								// Column 7 are the birthdates.
								fGrid.setCellData(col, row, MyDate.parseMyDate(str), false);
							} else {
								// Other columns can be treated as text.
								fGrid.setCellText(col, row, str, false);
							}
						}
					}
					row++;
				}
				
				// Wait for all the images to load.
				try {
					tracker.waitForAll();
				} catch (Exception ex) {
				}
			} catch (Exception ex) {
				System.out.println("Error: " + ex);
			}
		}
	}

}