UIUtils.java 文件源码

private static Color getGTKProfilerResultsBackground() {
    int[] pixels = new int[1];
    pixels[0] = -1;

    // Prepare textarea to grab the color from
    JTextArea textArea = new JTextArea();
    textArea.setSize(new Dimension(10, 10));
    textArea.doLayout();

    // Print the textarea to an image
    Image image = new BufferedImage(textArea.getSize().width, textArea.getSize().height, BufferedImage.TYPE_INT_RGB);
    textArea.printAll(image.getGraphics());

    // Grab appropriate pixels to get the color
    PixelGrabber pixelGrabber = new PixelGrabber(image, 5, 5, 1, 1, pixels, 0, 1);
    try {
        pixelGrabber.grabPixels();
        if (pixels[0] == -1) return Color.WHITE; // System background not customized
    } catch (InterruptedException e) {
        return getNonGTKProfilerResultsBackground();
    }

    return pixels[0] != -1 ? new Color(pixels[0]) : getNonGTKProfilerResultsBackground();
}