Java Utililty Methods ImageIcon

List of utility methods to do ImageIcon

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Description

The list of methods to do ImageIcon are organized into topic(s).

Method

ImageIcongetThumbnail(ImageIcon src, int maxWidth)
get Thumbnail 
if (src != null) {
    if (src.getIconWidth() > maxWidth) {
        return new ImageIcon(src.getImage().getScaledInstance(maxWidth, -1, Image.SCALE_SMOOTH));
    } else { 
        return src;
return null;
...
int[]grabRGB(ImageIcon icon)
Grabs a RGB values of the given image icon 
int width = icon.getIconWidth();
int height = icon.getIconHeight();
int[] rgb = new int[width * height];
PixelGrabber pg = new PixelGrabber(icon.getImage(), 0, 0, width, height, rgb, 0, width);
try {
    pg.grabPixels();
} catch (InterruptedException e) {
    throw new RuntimeException("Interrupted waiting for pixels!");
...
ImageIconiconDefaultSize(ImageIcon imag)
icon Default Size 
ImageIcon imagen = new ImageIcon(imag.getImage().getScaledInstance(14, 14, java.awt.Image.SCALE_DEFAULT));
return imagen;
ImageIconimageFlip(int w, int h, ImageIcon... icons)
image Flip 
BufferedImage bi = new BufferedImage(w, h, BufferedImage.TYPE_INT_ARGB);
Graphics2D ig2 = bi.createGraphics();
for (ImageIcon icon : icons) {
    ig2.drawImage(icon.getImage(), 0, 0, icon.getIconWidth(), icon.getIconHeight(), null);
return new ImageIcon(bi);
byte[]imageToBytes(ImageIcon icon)
image To Bytes 
if (icon == null) {
    return null;
Image img = icon.getImage();
if (img.getWidth(null) < 1 && img.getHeight(null) < 1) {
    return null;
BufferedImage image = getBufferedImageFromImage(img);
...
ImageIconimageWithBackground(ImageIcon icon, Color colorBg)
image With Background 
if (icon != null) {
    BufferedImage bi = new BufferedImage(icon.getIconWidth(), icon.getIconHeight(),
            BufferedImage.TYPE_INT_ARGB);
    Graphics2D ig2 = bi.createGraphics();
    if (colorBg != null) {
        ig2.setColor(colorBg);
        ig2.fillRect(0, 0, icon.getIconWidth(), icon.getIconHeight());
    ig2.drawImage(icon.getImage(), 0, 0, icon.getIconWidth(), icon.getIconHeight(), null);
    return new ImageIcon(bi);
return icon;
voidinitImageIcon(Class cl)
init Image Icon 
imageApp = getImage(cl, "app.gif");
imageEvaluate = getImage(cl, "evaluateIcon.gif");
imageAbout = getImage(cl, "about.gif");
imageIconExpand = new ImageIcon(getImage(cl, "handleExpand.gif"));
imageIconCollapse = new ImageIcon(getImage(cl, "handleCollapse.gif"));
plusIcon = new ImageIcon(getImage(cl, "plus.gif"));
minusIcon = new ImageIcon(getImage(cl, "minus.gif"));
wizardIcon = new ImageIcon(getImage(cl, "wizard.gif"));
...
booleanisValidImg(ImageIcon img)
Verifica que la imagen tenga las dimensiones de 32x32 
return (img.getIconWidth() == 32 && img.getIconHeight() == 32);
ImageIconloadJavaInternal(ImageIcon r, Dimension d, boolean noStretch)
load Java Internal 
Image scaled = null;
Dimension newD = getSizeKeepRatio(new Dimension(r.getIconWidth(), r.getIconHeight()), d, noStretch);
if (newD == null) {
    return r;
scaled = r.getImage().getScaledInstance(newD.width, newD.height, Image.SCALE_FAST);
r.getImage().flush();
r.setImage(scaled);
...
ImageIconmakeDisabledImage(ImageIcon in)
make Disabled Image 
if (in == null)
    return (null);
Image greyImage = makeGrayImage(in.getImage());
return (new ImageIcon(greyImage));