Java Utililty Methods Swing Icon

List of utility methods to do Swing Icon

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Description

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

Method

booleanareSizesEqual(javax.swing.Icon prevIcon, javax.swing.Icon nextIcon)
are Sizes Equal 
int prevWidth = prevIcon != null ? prevIcon.getIconWidth() : 0;
int prevHeight = prevIcon != null ? prevIcon.getIconHeight() : 0;
int nextWidth = nextIcon != null ? nextIcon.getIconWidth() : 0;
int nextHeight = nextIcon != null ? nextIcon.getIconHeight() : 0;
return (prevWidth == nextWidth) && (prevHeight == nextHeight);
ImageIconblendIcon(Icon icon, float iconWeight, int rgb, float rgbWeight)
Add a color layer to the icon (not including alpha) 
if (icon == null || !(icon instanceof ImageIcon)) {
    return null;
BufferedImage image = new BufferedImage(icon.getIconWidth(), icon.getIconHeight(),
        BufferedImage.TYPE_INT_ARGB);
Graphics2D g = image.createGraphics();
g.drawImage(((ImageIcon) icon).getImage(), 0, 0, null);
g.dispose();
...
voidblitBitmap(Graphics g, Icon icon, int x, int y, int w, int h)
Paint a backing bitmap into the specified rectangle of the passed Graphics object. 
Shape clip = g.getClip();
if (clip == null) {
    g.setClip(x, y, w, h);
} else {
    scratch.setBounds(x, y, w, h);
    Area area = new Area(clip);
    area.intersect(new Area(scratch));
    g.setClip(area);
...
IconbuildIcon(final String relativePath, final Class loader)
build Icon 
URL resource = loader.getResource(relativePath);
if (resource != null) {
    return new ImageIcon(resource);
} else {
    System.err.println("[ImageHelper] Invalid resource: " + relativePath + " Loader: " + loader.getName());
    throw new IllegalArgumentException("Invalid resource");
IconchangeBrightness(Icon icon, float factor)
Brightens icons of type ImageIcon by a factor 
if (icon == null || !(icon instanceof ImageIcon)) {
    return icon;
ImageIcon imageIcon = (ImageIcon) icon;
ImageIcon ret = new ImageIcon();
BufferedImage image = new BufferedImage(icon.getIconWidth(), icon.getIconHeight(),
        BufferedImage.TYPE_INT_ARGB);
image.getGraphics().drawImage(imageIcon.getImage(), 0, 0, imageIcon.getImageObserver());
...
voidclearMergedIconsCache()
clear Merged Icons Cache 
mergedIconsCache.clear();
IconcombineIcons(Icon underIcon, Icon overIcon)
Returns an icon that combines the 2 specified icons. 
int newWidth = Math.max(underIcon.getIconWidth(), overIcon.getIconWidth());
int newHeight = Math.max(underIcon.getIconHeight(), overIcon.getIconHeight());
BufferedImage combinedImage = new BufferedImage(newWidth, newHeight, BufferedImage.TYPE_INT_ARGB);
Graphics2D g2d = combinedImage.createGraphics();
underIcon.paintIcon(null, g2d, 0, 0);
overIcon.paintIcon(null, g2d, 0, 0);
g2d.dispose();
return new ImageIcon(combinedImage);
...
IconconcatenateIcons(final Icon icon1, final Icon icon2)
Concatenates 2 icons next to each other (in 1 row). 
return new Icon() {
    @Override
    public void paintIcon(final Component c, final Graphics g, final int x, final int y) {
        icon1.paintIcon(c, g, x, y);
        icon2.paintIcon(c, g, x + icon1.getIconWidth(), y);
    @Override
    public int getIconWidth() {
...
BufferedImagecreateBitmap(Icon icon)
create Bitmap 
BufferedImage bi = new BufferedImage(icon.getIconWidth(), icon.getIconHeight(),
        BufferedImage.TYPE_INT_ARGB);
Graphics2D g = bi.createGraphics();
g.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER));
icon.paintIcon(null, g, 0, 0);
g.dispose();
return bi;
ImageIconcreateChannelIcon(Icon ic)
Creates a scaled Version of the Icon. 
BufferedImage img = new BufferedImage(42, 22, BufferedImage.TYPE_INT_RGB);
if (ic == null) {
    ic = new ImageIcon("./imgs/tvbrowser16.png");
int height = 20;
int width = 40;
if ((ic.getIconWidth() != 0) && (ic.getIconHeight() != 0)) {
    double iWidth = ic.getIconWidth();
...