How to tint an ImageIcon [duplicate]

问题

How would I tint the icon that is passed through here to be a different color? Say I wanted to take a white image and make it a bit darker. I have looked into BufferedImages and such but I can't seem to find anything that will fit into the setup that I am using. I should also note that I am drawing the images onto a JLabel if that makes a difference.

Here is the source that I am using so that you can get an idea as to what I am working with.

public class Icon extends ImageIcon{

    private int scale = 1;
    private boolean mirror = false;

    public Icon(URL url) throws IOException{
        super(ImageIO.read(url));
    }

    public void setScale(int scale){
        this.scale = scale;
    }

    @Override
    public synchronized void paintIcon(Component c, Graphics g, int x, int y) {
        Graphics2D g2 = (Graphics2D)g.create();
        int height = 0, width = this.getIconWidth(), x1 = 1;
        if(mirror || scale != 1){
            height = -this.getIconHeight();
        }
        if(mirror){
            x1 = -1;
        }else{
            width = 0;
        }
        g2.translate(width * scale, height);
        g2.scale(x1 * scale, 1 * scale);
        super.paintIcon(c, g2, x, y);
    }

    public boolean isMirror() {
        return mirror;
    }    

    public void setMirror(boolean mirror) {
        this.mirror = mirror;
    }
}

回答1:

you need to create a new BufferedImage to make the transform into:

public BufferedImage colorImage(BufferedImage loadImg, int red, int green, int blue) {
    BufferedImage img = new BufferedImage(loadImg.getWidth(), loadImg.getHeight(),
        BufferedImage.TRANSLUCENT);
    Graphics2D graphics = img.createGraphics(); 
    Color newColor = new Color(red, green, blue, 0 /* alpha needs to be zero */);
    graphics.setXORMode(newColor);
    graphics.drawImage(loadImg, null, 0, 0);
    graphics.dispose();
    return img;
}

来源：https://stackoverflow.com/questions/30444232/how-to-tint-an-imageicon

标签

java

graphics

bufferedimage

imageicon

tint