Package net.sourceforge.jiu.gui.awt

Class ImageCreator

java.lang.Object
net.sourceforge.jiu.gui.awt.ImageCreator
public class ImageCreator extends Object
A class to create Image objects from various JIU image data types and vice versa. java.awt.Image objects can be used with the AWT and Swing GUI environments.
Author:
Marco Schmidt

  • Field Details

    • DEFAULT_ALPHA

      public static final int DEFAULT_ALPHA
      The default transparency value to be used: full opacity.
      See Also:

    • frame

      private static Frame frame

  • Constructor Details

    • ImageCreator

      private ImageCreator()

  • Method Details

    • createImage

      public static Image createImage(int[] pixels, int width, int height)
      Creates a Image object from a pixel array. Internally, a Frame object is used to call its Component.createImage(java.awt.image.ImageProducer) method with a MemoryImageSource object.
      Parameters:
      pixels - the image pixel data in the typical RGBA 32-bit format, one int per pixel
      width - the horizontal resolution in pixels of the image to be created
      height - the vertical resolution in pixels of the image to be created

    • convertToAwtBufferedImage

      public static BufferedImage convertToAwtBufferedImage(PixelImage image)

    • convertToAwtBufferedImage

      public static BufferedImage convertToAwtBufferedImage(RGB24Image image)
      Convert a JIU RGB24Image to a BufferedImage with the given alpha value (use RGBA.DEFAULT_ALPHA as default).
      Parameters:
      image - JIU image to be converted
      Returns:
      a new BufferedImage
      Since:
      0.14.2

    • convertToAwtImage

      public static Image convertToAwtImage(PixelImage image, int alpha)
      Creates an instance of Image from an instance of RGB24Image. This will require image.getWidth() * image.getHeight() * 4 bytes of free memory. This method checks the type of the argument image via instanceof and the calls the right convertToAwtImage method of this class.
      Parameters:
      image - the RGB24Image to be converted
      alpha - alpha value to be used with each pixel
      Returns:
      newly-created AWT image instance

    • convertToAwtImage

      public static Image convertToAwtImage(BilevelImage image, int alpha)
      Convert a BilevelImage object to an AWT image object.
      Parameters:
      image - the image to be converted
      alpha - the transparency value to be written to each pixel in the resulting image
      Returns:
      newly-created AWT image

    • convertToAwtImage

      public static Image convertToAwtImage(Gray16Image image, int alpha)
      Creates an AWT Image object from a Gray16Image object and an alpha value. This is done by allocating a new int array with image.getWidth() times image.getHeight() elements, copying the data to those ints (using transparency information from the top eight bits of the alpha argument) and calling Toolkit.createImage with a MemoryImageSource of those int[] pixels.
      Parameters:
      image - the grayscale image to be converted
      alpha - the alpha value, bits must only be set in the top eight bits
      Returns:
      AWT image created from the argument input image

    • convertToAwtImage

      public static Image convertToAwtImage(Gray8Image image, int alpha)
      Creates an AWT Image object from a Gray8Image object and an alpha value. This is done by allocating a new int array with image.getWidth() times image.getHeight() elements, copying the data to those ints (using transparency information from the top eight bits of the alpha argument) and calling Toolkit.createImage with a MemoryImageSource of those int[] pixels.
      Parameters:
      image - the grayscale image to be converted
      alpha - the alpha value, bits must only be set in the top eight bits
      Returns:
      AWT image created from the argument input image

    • convertToAwtImage

      public static Image convertToAwtImage(Paletted8Image image, int alpha)

    • convertToAwtImage

      public static Image convertToAwtImage(RGB24Image image, int alpha)

    • convertToAwtImage

      public static Image convertToAwtImage(RGB48Image image, int alpha)

    • convertImageToRGB24Image

      public static RGB24Image convertImageToRGB24Image(Image image)
      Creates an RGB24Image from the argument AWT image instance.
      Parameters:
      image - AWT image object to be converted to a RGB24Image
      Returns:
      a RGB24Image object holding the image data from the argument image