Create Image from byte array : SWT Image « SWT « Java Tutorial

/*******************************************************************************
 * Copyright (c) 2000, 2004 IBM Corporation 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:
 *     IBM Corporation - initial API and implementation
 *******************************************************************************/

/*
 * Cursor example snippet: create a color cursor from a source and a mask
 *
 * For a list of all SWT example snippets see
 * http://www.eclipse.org/swt/snippets/
 * 
 * @since 3.0
 */
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.PaintEvent;
import org.eclipse.swt.events.PaintListener;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.graphics.GC;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.graphics.ImageData;
import org.eclipse.swt.graphics.PaletteData;
import org.eclipse.swt.graphics.RGB;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;

public class ImageFromByteArray {

  static byte[] srcData = { (byte) 0x11, (byte) 0x11, (byte) 0x11, (byte) 0x00, (byte) 0x00,
      (byte) 0x11, (byte) 0x11, (byte) 0x11, (byte) 0x11, (byte) 0x10, (byte) 0x00, (byte) 0x01,
      (byte) 0x10, (byte) 0x00, (byte) 0x01, (byte) 0x11, (byte) 0x11, (byte) 0x00, (byte) 0x22,
      (byte) 0x01, (byte) 0x10, (byte) 0x33, (byte) 0x00, (byte) 0x11, (byte) 0x10, (byte) 0x02,
      (byte) 0x22, (byte) 0x01, (byte) 0x10, (byte) 0x33, (byte) 0x30, (byte) 0x01, (byte) 0x10,
      (byte) 0x22, (byte) 0x22, (byte) 0x01, (byte) 0x10, (byte) 0x33, (byte) 0x33, (byte) 0x01,
      (byte) 0x10, (byte) 0x22, (byte) 0x22, (byte) 0x01, (byte) 0x10, (byte) 0x33, (byte) 0x33,
      (byte) 0x01, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00,
      (byte) 0x00, (byte) 0x00, (byte) 0x01, (byte) 0x11, (byte) 0x11, (byte) 0x01, (byte) 0x10,
      (byte) 0x11, (byte) 0x11, (byte) 0x10, (byte) 0x01, (byte) 0x11, (byte) 0x11, (byte) 0x01,
      (byte) 0x10, (byte) 0x11, (byte) 0x11, (byte) 0x10, (byte) 0x00, (byte) 0x00, (byte) 0x00,
      (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x10, (byte) 0x44,
      (byte) 0x44, (byte) 0x01, (byte) 0x10, (byte) 0x55, (byte) 0x55, (byte) 0x01, (byte) 0x10,
      (byte) 0x44, (byte) 0x44, (byte) 0x01, (byte) 0x10, (byte) 0x55, (byte) 0x55, (byte) 0x01,
      (byte) 0x10, (byte) 0x04, (byte) 0x44, (byte) 0x01, (byte) 0x10, (byte) 0x55, (byte) 0x50,
      (byte) 0x01, (byte) 0x11, (byte) 0x00, (byte) 0x44, (byte) 0x01, (byte) 0x10, (byte) 0x55,
      (byte) 0x00, (byte) 0x11, (byte) 0x11, (byte) 0x10, (byte) 0x00, (byte) 0x01, (byte) 0x10,
      (byte) 0x00, (byte) 0x01, (byte) 0x11, (byte) 0x11, (byte) 0x11, (byte) 0x11, (byte) 0x00,
      (byte) 0x00, (byte) 0x11, (byte) 0x11, (byte) 0x11, };

  public static void main(String[] args) {
    Display display = new Display();
    Color white = display.getSystemColor(SWT.COLOR_WHITE);
    Color black = display.getSystemColor(SWT.COLOR_BLACK);
    Color yellow = display.getSystemColor(SWT.COLOR_YELLOW);
    Color red = display.getSystemColor(SWT.COLOR_RED);
    Color green = display.getSystemColor(SWT.COLOR_GREEN);
    Color blue = display.getSystemColor(SWT.COLOR_BLUE);

    // Create a source ImageData of depth 4
    PaletteData palette = new PaletteData(new RGB[] { black.getRGB(), white.getRGB(),
        yellow.getRGB(), red.getRGB(), blue.getRGB(), green.getRGB() });
    ImageData sourceData = new ImageData(16, 16, 4, palette, 1, srcData);

    Shell shell = new Shell(display);
    final Image source = new Image(display, sourceData);
    shell.addPaintListener(new PaintListener() {
      public void paintControl(PaintEvent e) {
        GC gc = e.gc;
        gc.drawImage(source, 20, 20);
      }
    });
    shell.setSize(150, 150);
    shell.open();

    while (!shell.isDisposed()) {
      if (!display.readAndDispatch())
        display.sleep();
    }
    source.dispose();
    display.dispose();
  }
}

17.120.SWT Image
	17.120.1.	SWT can display graphic images from files
	17.120.2.	Creating Images
	17.120.3.	Creating an Image From a File
	17.120.4.	Load image from file: Create an input stream and pass the input stream to the constructor:
	17.120.5.	Load image from file: an input stream and Class.getResourceAsStream()
	17.120.6.	Creating an Empty Image
	17.120.7.	Creating an Image From an ImageData
	17.120.8.	Disposal Method Constants
	17.120.9.	Type Constants
	17.120.10.	Get an ImageData instance from an existing Image
	17.120.11.	Use ImageData to create a new image
	17.120.12.	Creating an Image From Another Image
	17.120.13.	Create an exact copy of the image
	17.120.14.	Create an image that has a disabled look
	17.120.15.	Create an image that has the grayscale look
	17.120.16.	Images created using different flags for Label
	17.120.17.	Drawing Images
	17.120.18.	Draw part of an Image
	17.120.19.	Paint on an Image
	17.120.20.	Using code to Create Image
	17.120.21.	Rotate Image
	17.120.22.	Get ImageData from Image
	17.120.23.	Create ImageData from PaletteData
	17.120.24.	Create Image from byte array
	17.120.25.	GC example snippet: create an icon (in memory)
	17.120.26.	Convert between SWT Image and AWT BufferedImage
	17.120.27.	Converts an AWT image to SWT.
	17.120.28.	Converts a buffered image to SWT ImageData.