public Channels() {
super("Channels");
if (instance != null) {
instance.toFront();
return;
}
WindowManager.addWindow(this);
instance = this;
GridBagLayout gridbag = new GridBagLayout();
GridBagConstraints c = new GridBagConstraints();
setLayout(gridbag);
int y = 0;
c.gridx = 0;
c.gridy = y++;
c.gridwidth = 1;
c.fill = GridBagConstraints.BOTH;
c.anchor = GridBagConstraints.CENTER;
int margin = 32;
if (IJ.isMacOSX()) margin = 20;
c.insets = new Insets(10, margin, 10, margin);
choice = new Choice();
for (int i = 0; i < modes.length; i++) choice.addItem(modes[i]);
choice.select(0);
choice.addItemListener(this);
add(choice, c);
CompositeImage ci = getImage();
int nCheckBoxes = ci != null ? ci.getNChannels() : 3;
if (nCheckBoxes > CompositeImage.MAX_CHANNELS) nCheckBoxes = CompositeImage.MAX_CHANNELS;
checkbox = new Checkbox[nCheckBoxes];
for (int i = 0; i < nCheckBoxes; i++) {
checkbox[i] = new Checkbox("Channel " + (i + 1), true);
c.insets = new Insets(0, 25, i < nCheckBoxes - 1 ? 0 : 10, 5);
c.gridy = y++;
add(checkbox[i], c);
checkbox[i].addItemListener(this);
}
c.insets = new Insets(0, 15, 10, 15);
c.fill = GridBagConstraints.NONE;
c.gridy = y++;
moreButton = new Button(moreLabel);
moreButton.addActionListener(this);
add(moreButton, c);
update();
pm = new PopupMenu();
for (int i = 0; i < menuItems.length; i++) addPopupItem(menuItems[i]);
add(pm);
addKeyListener(IJ.getInstance()); // ImageJ handles keyboard shortcuts
setResizable(false);
pack();
if (location == null) {
GUI.center(this);
location = getLocation();
} else setLocation(location);
show();
}
public synchronized void setMode(int mode) {
if (mode < COMPOSITE || mode > GRAYSCALE) return;
if (mode == COMPOSITE && getNChannels() > MAX_CHANNELS) mode = COLOR;
for (int i = 0; i < MAX_CHANNELS; i++) active[i] = true;
if (this.mode != COMPOSITE && mode == COMPOSITE) img = null;
this.mode = mode;
if (mode == COLOR || mode == GRAYSCALE) {
if (cip != null) {
for (int i = 0; i < cip.length; i++) {
if (cip[i] != null) cip[i].setPixels(null);
cip[i] = null;
}
}
cip = null;
rgbPixels = null;
awtImage = null;
currentChannel = -1;
}
if (mode == GRAYSCALE || mode == TRANSPARENT) ip.setColorModel(ip.getDefaultColorModel());
Channels.updateChannels();
}
public synchronized void updateImage() {
int imageSize = width * height;
int nChannels = getNChannels();
int redValue, greenValue, blueValue;
int ch = getChannel();
// IJ.log("updateImage: "+ch+"/"+nChannels+" "+currentSlice+" "+currentFrame);
if (ch > nChannels) ch = nChannels;
boolean newChannel = false;
if (ch - 1 != currentChannel) {
previousChannel = currentChannel;
currentChannel = ch - 1;
newChannel = true;
}
ImageProcessor ip = getProcessor();
if (mode != COMPOSITE) {
if (newChannel) {
setupLuts(nChannels);
LUT cm = lut[currentChannel];
if (mode == COLOR) ip.setColorModel(cm);
if (!(cm.min == 0.0 && cm.max == 0.0)) ip.setMinAndMax(cm.min, cm.max);
if (!IJ.isMacro()) ContrastAdjuster.update();
for (int i = 0; i < MAX_CHANNELS; i++) active[i] = i == currentChannel ? true : false;
Channels.updateChannels();
}
if (ip != null) img = ip.createImage();
return;
}
if (nChannels == 1) {
cip = null;
rgbPixels = null;
awtImage = null;
if (ip != null) img = ip.createImage();
return;
}
if (cip == null
|| cip[0].getWidth() != width
|| cip[0].getHeight() != height
|| getBitDepth() != bitDepth) {
setup(nChannels, getImageStack());
rgbPixels = null;
rgbSampleModel = null;
if (currentChannel >= nChannels) {
setSlice(1);
currentChannel = 0;
newChannel = true;
}
bitDepth = getBitDepth();
}
if (newChannel) {
getProcessor().setMinAndMax(cip[currentChannel].getMin(), cip[currentChannel].getMax());
if (!IJ.isMacro()) ContrastAdjuster.update();
}
// IJ.log(nChannels+" "+ch+" "+currentChannel+" "+newChannel);
if (getSlice() != currentSlice || getFrame() != currentFrame) {
currentSlice = getSlice();
currentFrame = getFrame();
int position = getStackIndex(1, currentSlice, currentFrame);
if (cip == null) return;
for (int i = 0; i < nChannels; ++i)
cip[i].setPixels(getImageStack().getProcessor(position + i).getPixels());
}
if (rgbPixels == null) {
rgbPixels = new int[imageSize];
newPixels = true;
imageSource = null;
rgbRaster = null;
rgbImage = null;
}
cip[currentChannel].setMinAndMax(ip.getMin(), ip.getMax());
if (singleChannel && nChannels <= 3) {
switch (currentChannel) {
case 0:
cip[0].updateComposite(rgbPixels, 1);
break;
case 1:
cip[1].updateComposite(rgbPixels, 2);
break;
case 2:
cip[2].updateComposite(rgbPixels, 3);
break;
}
} else {
if (cip == null) return;
if (syncChannels) {
ImageProcessor ip2 = getProcessor();
double min = ip2.getMin(), max = ip2.getMax();
for (int i = 0; i < nChannels; i++) {
cip[i].setMinAndMax(min, max);
lut[i].min = min;
lut[i].max = max;
}
syncChannels = false;
}
if (active[0]) cip[0].updateComposite(rgbPixels, 4);
else {
for (int i = 1; i < imageSize; i++) rgbPixels[i] = 0;
}
if (cip == null || nChannels > cip.length) return;
for (int i = 1; i < nChannels; i++) if (active[i]) cip[i].updateComposite(rgbPixels, 5);
}
if (IJ.isJava16()) createBufferedImage();
else createImage();
if (img == null && awtImage != null) img = awtImage;
singleChannel = false;
}
public static void updateChannels() {
if (instance != null) instance.update();
}