Snippet5.java

/*
 * Copyright (c) 2006 Matthew Hall and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 * 
 * Contributors:
 *     Matthew Hall - initial API and implementation
 */
package org.eclipse.nebula.paperclips.snippets;

import org.eclipse.nebula.paperclips.core.PaperClips;
import org.eclipse.nebula.paperclips.core.Print;
import org.eclipse.nebula.paperclips.core.PrintJob;
import org.eclipse.nebula.paperclips.core.border.LineBorder;
import org.eclipse.nebula.paperclips.core.grid.CellBackgroundProvider;
import org.eclipse.nebula.paperclips.core.grid.DefaultGridLook;
import org.eclipse.nebula.paperclips.core.grid.GridPrint;
import org.eclipse.nebula.paperclips.core.text.TextPrint;
import org.eclipse.nebula.paperclips.widgets.PrintViewer;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.RGB;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.printing.PrintDialog;
import org.eclipse.swt.printing.PrinterData;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Event;
import org.eclipse.swt.widgets.Listener;
import org.eclipse.swt.widgets.Shell;

/**
 * Demonstrate use of CellBackgroundProvider.
 * 
 * @author Matthew
 */
public class Snippet5 {
	public static Print createPrint() {
		DefaultGridLook look = new DefaultGridLook();
		look.setCellBorder(new LineBorder());
		look.setHeaderBackground(new RGB(200, 200, 200));

		// Alternate between light yellow and light blue every 5 rows
		look.setBodyBackgroundProvider(new CellBackgroundProvider() {
			private final RGB evenRows = new RGB(255, 255, 200);
			private final RGB oddRows = new RGB(200, 200, 255);

			public RGB getCellBackground(int row, int column, int colspan) {
				return (row / 5) % 2 == 0 ? evenRows : oddRows;
			}
		});
		GridPrint grid = new GridPrint("d, d, d, d", look);

		// Light gray background on header
		for (int i = 0; i < 4; i++)
			grid.addHeader(new TextPrint("Column " + i));

		for (int r = 0; r < 20; r++)
			for (int c = 0; c < 4; c++)
				grid.add(new TextPrint("Row " + r + " Col " + c));

		return grid;
	}

	/**
	 * Executes the snippet.
	 * 
	 * @param args
	 *            command-line args.
	 */
	public static void main(String[] args) {
		Display display = Display.getDefault();
		final Shell shell = new Shell(display);
		shell.setText("Snippet5.java");
		shell.setBounds(100, 100, 640, 480);
		shell.setLayout(new GridLayout());

		Button button = new Button(shell, SWT.PUSH);
		button.setLayoutData(new GridData(SWT.FILL, SWT.DEFAULT, true, false));
		button.setText("Print");

		PrintViewer viewer = new PrintViewer(shell, SWT.BORDER);
		viewer.getControl().setLayoutData(
				new GridData(SWT.FILL, SWT.FILL, true, true));
		final Print print = createPrint();
		viewer.setPrint(print);

		button.addListener(SWT.Selection, new Listener() {
			public void handleEvent(Event event) {
				PrintDialog dialog = new PrintDialog(shell, SWT.NONE);
				PrinterData printerData = dialog.open();
				if (printerData != null)
					PaperClips.print(new PrintJob("Snippet5.java", print)
							.setMargins(72), printerData);
			}
		});

		shell.setVisible(true);

		while (!shell.isDisposed())
			if (!display.readAndDispatch())
				display.sleep();

		display.dispose();
	}
}