@Override
public void paint(Graphics g) {
try {
Graphics2D g2d = (Graphics2D) g;
if (numPaletteEntries > 50) {
g2d.setRenderingHint(
RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BICUBIC);
}
if (paletteFile != null
&& (paletteFile.toLowerCase().contains("qual")
|| paletteFile.toLowerCase().contains("categorical"))) {
g2d.setRenderingHint(
RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_NEAREST_NEIGHBOR);
}
int width = getWidth();
int height = getHeight();
Image image = null;
int numDisplayedPaletteEntries = 0;
if (!categorical) {
numDisplayedPaletteEntries = paletteData.length;
} else {
numDisplayedPaletteEntries =
(int)
(Math.floor((maxValue - minValue + 1) / numPaletteEntries)
+ (maxValue - minValue + 1) % numPaletteEntries);
}
int[] imageData = new int[numDisplayedPaletteEntries];
int i, j;
int numPaletteEntriesLessOne = numPaletteEntries - 1;
if (!isReversed && orientation == VERTICAL_ORIENTATION) {
if (!categorical) {
for (i = 0; i < numPaletteEntries; i++) {
j =
(int)
((Math.pow((1 - ((double) (i) / numPaletteEntriesLessOne)), gamma))
* numPaletteEntriesLessOne);
imageData[i] = paletteData[j];
}
} else { // it is categorical
for (i = 0; i < numDisplayedPaletteEntries; i++) {
j = (int) (i % numPaletteEntries);
imageData[numDisplayedPaletteEntries - 1 - i] = paletteData[j];
}
}
image = createImage(new MemoryImageSource(1, numDisplayedPaletteEntries, imageData, 0, 1));
} else if (!isReversed && orientation == HORIZONTAL_ORIENTATION) {
for (i = 0; i < numPaletteEntries; i++) {
j =
(int)
((Math.pow(((double) (i) / numPaletteEntriesLessOne), gamma))
* numPaletteEntriesLessOne);
imageData[i] = paletteData[j];
}
image = createImage(new MemoryImageSource(numPaletteEntries, 1, imageData, 0, 1));
} else if (isReversed && orientation == VERTICAL_ORIENTATION) {
if (!categorical) {
for (i = 0; i < numPaletteEntries; i++) {
j =
(int)
((Math.pow(((double) (i) / numPaletteEntriesLessOne), gamma))
* numPaletteEntriesLessOne);
imageData[i] = paletteData[j];
}
} else { // it is categorical
for (i = 0; i < numDisplayedPaletteEntries; i++) {
j = (int) (numPaletteEntries - i % numPaletteEntries - 1);
imageData[numDisplayedPaletteEntries - 1 - i] = paletteData[j];
}
}
image = createImage(new MemoryImageSource(1, numDisplayedPaletteEntries, imageData, 0, 1));
} else if (isReversed && orientation == HORIZONTAL_ORIENTATION) {
for (i = 0; i < numPaletteEntries; i++) {
j =
(int)
((Math.pow((1 - ((double) (i) / numPaletteEntriesLessOne)), gamma))
* numPaletteEntriesLessOne);
imageData[i] = paletteData[j];
}
image = createImage(new MemoryImageSource(imageData.length, 1, imageData, 0, 1));
}
g.drawImage(image, 0, 0, width, height, this);
if (!isSelected) {
g.setColor(Color.black);
g.drawRect(0, 0, width - 1, height - 1);
} else {
g.setColor(Color.white);
g.drawRect(1, 1, width - 3, height - 3);
g.setColor(Color.red);
g.drawRect(0, 0, width - 1, height - 1);
}
} catch (Exception e) {
System.out.println(e.getMessage());
}
}
/**
* Returns the largest bit-value that is set to '1' of a given mask value.
*
* <p>E.g., for a mask value of 128, the result will be 7, while for a mask value of 3, the value
* will be 1.
*
* @param aMaskValue the mask value to return the bit-index of.
* @return the largest bit-value that is set to '1' of a given mask value, zero-based.
*/
public static int getBitIndex(final int aMaskValue) {
return (int) Math.floor(Math.log(aMaskValue) / Math.log(2));
}
public Image getPaletteImage() {
try {
int width = getWidth();
int height = getHeight();
Image image = null;
int numDisplayedPaletteEntries = 0;
if (!categorical) {
numDisplayedPaletteEntries = paletteData.length;
} else {
numDisplayedPaletteEntries =
(int)
(Math.floor((maxValue - minValue + 1) / numPaletteEntries)
+ (maxValue - minValue + 1) % numPaletteEntries);
}
int[] imageData = new int[numDisplayedPaletteEntries];
int i, j;
int numPaletteEntriesLessOne = numPaletteEntries - 1;
if (!isReversed && orientation == VERTICAL_ORIENTATION) {
if (!categorical) {
for (i = 0; i < numPaletteEntries; i++) {
j =
(int)
((Math.pow((1 - ((double) (i) / numPaletteEntriesLessOne)), gamma))
* numPaletteEntriesLessOne);
imageData[i] = paletteData[j];
}
} else { // it is categorical
for (i = 0; i < numDisplayedPaletteEntries; i++) {
j = (int) (i % numPaletteEntries);
imageData[numDisplayedPaletteEntries - 1 - i] = paletteData[j];
}
}
image = createImage(new MemoryImageSource(1, numDisplayedPaletteEntries, imageData, 0, 1));
} else if (!isReversed && orientation == HORIZONTAL_ORIENTATION) {
for (i = 0; i < numPaletteEntries; i++) {
j =
(int)
((Math.pow(((double) (i) / numPaletteEntriesLessOne), gamma))
* numPaletteEntriesLessOne);
imageData[i] = paletteData[j];
}
image = createImage(new MemoryImageSource(numPaletteEntries, 1, imageData, 0, 1));
} else if (isReversed && orientation == VERTICAL_ORIENTATION) {
if (!categorical) {
for (i = 0; i < numPaletteEntries; i++) {
j =
(int)
((Math.pow(((double) (i) / numPaletteEntriesLessOne), gamma))
* numPaletteEntriesLessOne);
imageData[i] = paletteData[j];
}
} else { // it is categorical
for (i = 0; i < numDisplayedPaletteEntries; i++) {
j = (int) (numPaletteEntries - i % numPaletteEntries - 1);
imageData[numDisplayedPaletteEntries - 1 - i] = paletteData[j];
}
}
image = createImage(new MemoryImageSource(1, numDisplayedPaletteEntries, imageData, 0, 1));
} else if (isReversed && orientation == HORIZONTAL_ORIENTATION) {
for (i = 0; i < numPaletteEntries; i++) {
j =
(int)
((Math.pow((1 - ((double) (i) / numPaletteEntriesLessOne)), gamma))
* numPaletteEntriesLessOne);
imageData[i] = paletteData[j];
}
image = createImage(new MemoryImageSource(imageData.length, 1, imageData, 0, 1));
}
return image;
} catch (Exception e) {
return null;
}
}