@Override
protected void performImageTransformation(WFImage pImg) {
SimpleImage img = (SimpleImage) pImg;
if ((leftSize > 0) || (topSize > 0) || (rightSize > 0) || (bottomSize > 0)) {
PlainImageCreator creator = new PlainImageCreator();
creator.setBgColor(color);
SimpleImage bgImg =
creator.createImage(
pImg.getImageWidth() + leftSize + rightSize,
pImg.getImageHeight() + topSize + bottomSize);
ComposeTransformer cT = new ComposeTransformer();
cT.setForegroundImage(img);
cT.setLeft(leftSize);
cT.setTop(topSize);
cT.setGenlock(ComposeTransformer.Genlock.NONE);
cT.setHAlign(ComposeTransformer.HAlignment.OFF);
cT.setVAlign(ComposeTransformer.VAlignment.OFF);
cT.transformImage(bgImg);
img.setBufferedImage(bgImg.getBufferedImg(), bgImg.getImageWidth(), bgImg.getImageHeight());
}
}
@Override
protected void fillImage(SimpleImage res) {
int width = res.getImageWidth();
int height = res.getImageHeight();
Random rnd = new Random();
rnd.setSeed(this.seed);
double cover = 1.0 - this.cover;
double aspect = (double) width / (double) height;
int frequency = this.initialFrequency;
int frequencyX = (int) (frequency * aspect + 0.5);
int frequencyY = (int) (frequency * aspect + 0.5);
double alphaInt = 1.0f;
BufferedImage mainImage = res.getBufferedImg();
Graphics2D mainGr = mainImage.createGraphics();
for (int i = 0; i < this.octaves; i++) {
// create a small random image
BufferedImage rndMap = new BufferedImage(frequencyX, frequencyY, BufferedImage.TYPE_INT_ARGB);
{
Graphics2D g = rndMap.createGraphics();
try {
switch (colorMode) {
case COLOR:
for (int x = 0; x < frequencyX; x++) {
for (int y = 0; y < frequencyY; y++) {
int rVal = rnd.nextInt(255);
int gVal = rnd.nextInt(255);
int bVal = rnd.nextInt(255);
g.setColor(new Color(rVal, gVal, bVal, (int) (255.0 * alphaInt + 0.5)));
g.fillRect(x, y, 1, 1);
}
}
break;
case GREY:
for (int x = 0; x < frequencyX; x++) {
for (int y = 0; y < frequencyY; y++) {
int val = rnd.nextInt(255);
g.setColor(new Color(val, val, val, (int) (255.0 * alphaInt + 0.5)));
g.fillRect(x, y, 1, 1);
}
}
break;
case BASE_COLOR:
int rBase = this.cloudColor.getRed();
int gBase = this.cloudColor.getGreen();
int bBase = this.cloudColor.getBlue();
for (int x = 0; x < frequencyX; x++) {
for (int y = 0; y < frequencyY; y++) {
int val = rnd.nextInt(255);
int rVal = (rBase * val) / 255;
int gVal = (gBase * val) / 255;
int bVal = (bBase * val) / 255;
g.setColor(new Color(rVal, gVal, bVal, (int) (255.0 * alphaInt + 0.5)));
g.fillRect(x, y, 1, 1);
}
}
break;
}
} finally {
g.dispose();
}
}
// scale up the image using Java-built-in interpolation
{
BufferedImage scaledRndMap = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
Graphics2D g = scaledRndMap.createGraphics();
try {
g.setRenderingHint(
RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BICUBIC);
g.drawImage(rndMap, 0, 0, width, height, 0, 0, frequencyX, frequencyY, null);
} finally {
g.dispose();
}
mainGr.drawImage(scaledRndMap, null, 0, 0);
}
alphaInt *= this.persistence;
frequency += frequency;
frequencyX = (int) (frequency * aspect + 0.5);
frequencyY = (int) (frequency * aspect + 0.5);
}
// apply an exponential filter to let the noise more look like clouds
if (mode == Mode.CLOUDS) {
final double rWeight = 0.2990;
final double gWeight = 0.5880;
final double bWeight = 0.1130;
SimpleImage bgImg = (this.backgroundImg != null) ? backgroundImg.getImage() : null;
Pixel pixel = new Pixel();
Pixel bgPixel = new Pixel();
for (int i = 0; i < mainImage.getWidth(); i++) {
for (int j = 0; j < mainImage.getHeight(); j++) {
pixel.setARGBValue(res.getARGBValue(i, j));
double lum = pixel.r * rWeight + pixel.g * gWeight + pixel.b * bWeight;
double c = lum - (cover * 255);
if (c < 0) c = 0;
int iVal = Tools.roundColor(255.0 - (Math.pow(this.sharpness, c) * 255.0));
int bgRed = 0, bgGreen = 0, bgBlue = 0;
switch (bgMode) {
case IMAGE:
if (bgImg != null) {
bgPixel.setARGBValue(bgImg.getARGBValueIgnoreBounds(i, j));
bgRed = bgPixel.r;
bgGreen = bgPixel.g;
bgBlue = bgPixel.b;
}
break;
case COLOR:
bgRed = this.bgColor.getRed();
bgGreen = this.bgColor.getGreen();
bgBlue = this.bgColor.getBlue();
break;
}
switch (colorMode) {
case GREY:
pixel.r = expose(iVal + 1.5 * bgRed);
pixel.g = expose(iVal + 1.5 * bgGreen);
pixel.b = expose(iVal + 1.5 * bgBlue);
break;
default:
pixel.r = expose((iVal * pixel.r) / 255 + 1.5 * bgRed);
pixel.g = expose((iVal * pixel.g) / 255 + 1.5 * bgGreen);
pixel.b = expose((iVal * pixel.b) / 255 + 1.5 * bgBlue);
break;
}
res.setRGB(i, j, pixel);
}
}
}
}