/**
* Copy data from specified 2D short array.
*
* @param copyAlpha Also copy the alpha information.
*/
public void copyFrom(short[][] maps, boolean copyAlpha) {
final int len = maps.length;
beginUpdate();
try {
// red component
if (len > 0) red.copyFrom(maps[0], 8);
if (len > 1) green.copyFrom(maps[1], 8);
if (len > 2) blue.copyFrom(maps[2], 8);
if (copyAlpha && (len > 3)) alpha.copyFrom(maps[3], 8);
} finally {
endUpdate();
}
}
/**
* Copy data from specified source colormap.
*
* @param copyAlpha Also copy the alpha information.
*/
public void copyFrom(IcyColorMap srcColorMap, boolean copyAlpha) {
beginUpdate();
try {
// copy colormap band
red.copyFrom(srcColorMap.red);
green.copyFrom(srcColorMap.green);
blue.copyFrom(srcColorMap.blue);
gray.copyFrom(srcColorMap.gray);
if (copyAlpha) alpha.copyFrom(srcColorMap.alpha);
// copy type
setType(srcColorMap.type);
} finally {
endUpdate();
}
}
/** @see IcyColorMap#setTypeFromData() */
public void setTypeFromData(boolean notifyChange) {
boolean grayColor = true;
boolean noColor = true;
boolean hasAlpha = false;
IcyColorMapType cmType;
for (int i = 0; i < MAX_INDEX; i++) {
final short r = red.map[i];
final short g = green.map[i];
final short b = blue.map[i];
final short a = alpha.map[i];
grayColor &= (r == g) && (r == b);
noColor &= (r == 0) && (g == 0) && (b == 0);
hasAlpha |= (a != MAX_LEVEL);
}
if (noColor && hasAlpha) cmType = IcyColorMapType.ALPHA;
else if (grayColor && !noColor) {
// set gray map
gray.copyFrom(red.map, 0);
cmType = IcyColorMapType.GRAY;
} else cmType = IcyColorMapType.RGB;
if (notifyChange) setType(cmType);
else type = cmType;
}