private void exportColorPaletteDef() {
final ImageInfo imageInfo = getFormModel().getModifiedImageInfo();
if (imageInfo == null) {
// Normally this code is unreachable because, the export Button should be
// disabled if the color manipulation form has no ImageInfo.
return;
}
final SnapFileChooser fileChooser = new SnapFileChooser();
fileChooser.setDialogTitle("Export Colour Palette"); /*I18N*/
fileChooser.setFileFilter(getOrCreateColorPaletteDefinitionFileFilter());
fileChooser.setCurrentDirectory(getIODir().toFile());
final int result = fileChooser.showSaveDialog(getToolViewPaneControl());
File file = fileChooser.getSelectedFile();
if (file != null && file.getParentFile() != null) {
setIODir(file.getParentFile());
}
if (result == JFileChooser.APPROVE_OPTION) {
if (file != null) {
if (Boolean.TRUE.equals(SnapDialogs.requestOverwriteDecision(titlePrefix, file))) {
file = FileUtils.ensureExtension(file, FILE_EXTENSION);
try {
final ColorPaletteDef colorPaletteDef = imageInfo.getColorPaletteDef();
ColorPaletteDef.storeColorPaletteDef(colorPaletteDef, file);
} catch (IOException e) {
showErrorDialog("Failed to export colour palette:\n" + e.getMessage()); /*I18N*/
}
}
}
}
}
private TiffShort[] createColorMap(Product product) {
final ImageInfo imageInfo = product.getBandAt(0).getImageInfo(null, ProgressMonitor.NULL);
final ColorPaletteDef paletteDef = imageInfo.getColorPaletteDef();
final TiffShort[] redColor = new TiffShort[TIFF_COLORMAP_SIZE];
Arrays.fill(redColor, new TiffShort(0));
final TiffShort[] greenColor = new TiffShort[TIFF_COLORMAP_SIZE];
Arrays.fill(greenColor, new TiffShort(0));
final TiffShort[] blueColor = new TiffShort[TIFF_COLORMAP_SIZE];
Arrays.fill(blueColor, new TiffShort(0));
final float factor = 65535.0f / 255.0f;
for (ColorPaletteDef.Point point : paletteDef.getPoints()) {
final Color color = point.getColor();
final int red = (int) (color.getRed() * factor);
final int green = (int) (color.getGreen() * factor);
final int blue = (int) (color.getBlue() * factor);
int mapIndex = (int) Math.floor(point.getSample());
redColor[mapIndex] = new TiffShort(red);
greenColor[mapIndex] = new TiffShort(green);
blueColor[mapIndex] = new TiffShort(blue);
}
final TiffShort[] colorMap = new TiffShort[TIFF_COLORMAP_SIZE * 3];
System.arraycopy(redColor, 0, colorMap, 0, redColor.length);
System.arraycopy(greenColor, 0, colorMap, TIFF_COLORMAP_SIZE, greenColor.length);
System.arraycopy(blueColor, 0, colorMap, TIFF_COLORMAP_SIZE * 2, blueColor.length);
return colorMap;
}
private void applyColorPaletteDef(
ColorPaletteDef colorPaletteDef, RasterDataNode targetRaster, ImageInfo targetImageInfo) {
if (isIndexCoded(targetRaster)) {
targetImageInfo.setColors(colorPaletteDef.getColors());
} else {
Stx stx = targetRaster.getStx(false, ProgressMonitor.NULL);
Boolean autoDistribute = getAutoDistribute(colorPaletteDef);
if (autoDistribute == null) {
return;
}
targetImageInfo.setColorPaletteDef(
colorPaletteDef, stx.getMinimum(), stx.getMaximum(), autoDistribute);
}
}