public void generarFondo(Component componente) {
boolean dibujarFondo = false;
Rectangle med = this.getBounds();
Rectangle areaDibujo = this.getBounds();
BufferedImage tmp;
GraphicsConfiguration gc =
GraphicsEnvironment.getLocalGraphicsEnvironment()
.getDefaultScreenDevice()
.getDefaultConfiguration();
if (Principal.fondoBlur) {
dibujarFondo = true;
}
if (dibujarFondo) {
JRootPane root = SwingUtilities.getRootPane(this);
blurBuffer = GraphicsUtilities.createCompatibleImage(Principal.sysAncho, Principal.sysAlto);
Graphics2D g2 = blurBuffer.createGraphics();
g2.setClip(med);
blurBuffer = blurBuffer.getSubimage(med.x, med.y, med.width, med.height);
((Escritorio) Principal.getEscritorio()).getFrameEscritorio().paint(g2);
g2.dispose();
backBuffer = blurBuffer;
// blurBuffer = toGrayScale(blurBuffer);
blurBuffer = GraphicsUtilities.createThumbnailFast(blurBuffer, getWidth() / 2);
blurBuffer = new GaussianBlurFilter(4).filter(blurBuffer, null);
g2 = (Graphics2D) blurBuffer.getGraphics();
g2.setColor(new Color(0, 0, 0, 195));
g2.fillRect(0, 0, Principal.sysAncho, Principal.sysAlto);
listo = true;
}
}
public static BufferedImage toGrayScale(BufferedImage image) {
BufferedImage result =
new BufferedImage(image.getWidth(), image.getHeight(), BufferedImage.TYPE_BYTE_GRAY);
Raster raster = image.getData();
WritableRaster grayRaster = result.getRaster();
int height = raster.getHeight();
int sample = 0;
for (int x = 0; x < raster.getWidth(); ++x) {
for (int y = 0; y < height; ++y) {
sample = raster.getSample(x, y, 0) + raster.getSample(x, y, 1) + raster.getSample(x, y, 2);
grayRaster.setSample(x, y, 0, (int) ((float) sample / 3.0));
}
}
return result;
}