@Override
protected void paintComponent(Graphics graphics) {
// Fill in the background:
Graphics2D g = (Graphics2D) graphics;
Shape clip = g.getClip();
g.setColor(LightZoneSkin.Colors.NeutralGray);
g.fill(clip);
if (preview == null) {
PlanarImage image = currentImage.get();
if (image == null) {
engine.update(null, false);
} else if (visibleRect != null && getHeight() > 1 && getWidth() > 1) {
preview = cropScaleGrayscale(visibleRect, image);
}
}
if (preview != null) {
int dx, dy;
AffineTransform transform = new AffineTransform();
if (getSize().width > preview.getWidth()) dx = (getSize().width - preview.getWidth()) / 2;
else dx = 0;
if (getSize().height > preview.getHeight()) dy = (getSize().height - preview.getHeight()) / 2;
else dy = 0;
transform.setToTranslation(dx, dy);
try {
g.drawRenderedImage(preview, transform);
} catch (Exception e) {
e.printStackTrace();
}
}
}
@Override
public void addNotify() {
// This method gets called when this Preview is added.
engine.update(null, false);
super.addNotify();
}
protected synchronized void paintComponent(Graphics gr) {
Graphics2D g2d = (Graphics2D) gr;
if (bins == null) engine.update(null, false);
Dimension bounds = getSize();
final float minx = 0;
final float miny = 0;
final float width = bounds.width;
final float height = bounds.height - 18;
g2d.setColor(Color.lightGray);
g2d.fill(new Rectangle2D.Float(minx, miny, width, height + 18));
g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
if (bins != null) {
final int max = binmax();
class scaler {
int yscale(double y) {
return (int) (height - (height - 4) * (y / (double) max) + 0.5 + miny);
}
}
scaler s = new scaler();
for (int c = 0; c < bins.length; c++) {
Color color = Color.BLACK;
if (bins.length > 1)
switch (c) {
case 0:
color = Color.RED;
break;
case 1:
color = Color.GREEN;
break;
case 2:
color = Color.BLUE;
break;
}
g2d.setColor(color);
int numBins = bins[c].length;
int zeroY = s.yscale(0);
float xstep = (width + 1) / numBins;
GeneralPath gp = new GeneralPath();
gp.moveTo(minx, zeroY);
float lastx = minx;
float lasty = zeroY;
for (int i = 0; i < numBins; i++) {
int y = s.yscale(bins[c][i]);
float x = xstep * i + minx;
if (lasty != zeroY || y != zeroY) {
gp.lineTo(x, y);
lastx = x;
lasty = y;
}
}
if (lasty != zeroY) gp.lineTo(lastx, zeroY);
g2d.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, 0.4f));
g2d.fill(gp);
g2d.setComposite(AlphaComposite.SrcOver);
g2d.draw(gp);
}
}
float step = width / 16.0f;
for (int i = 0; i < 16; i++) {
if (i == currentFocusZone) g2d.setColor(Color.yellow);
else {
float color = (float) ((Math.pow(2, i * 8.0 / (16 - 1)) - 1) / 255.);
float[] srgbColor =
Functions.fromLinearToCS(
JAIContext.systemColorSpace, new float[] {color, color, color});
g2d.setColor(
new Color(
(int) (255 * srgbColor[0]),
(int) (255 * srgbColor[1]),
(int) (255 * srgbColor[2])));
}
g2d.fill(new Rectangle2D.Float(minx + step * i, height + miny, step + 0.5f, 18));
}
}
