/** This plugin implements the Image/Scale command. */
public class Scaler implements PlugIn, TextListener, FocusListener {
private ImagePlus imp;
private static String xstr = "0.5";
private static String ystr = "0.5";
private String zstr = "1.0";
private static int newWidth, newHeight;
private int newDepth;
private static boolean averageWhenDownsizing = true;
private static boolean newWindow = true;
private static int interpolationMethod = ImageProcessor.BILINEAR;
private String[] methods = ImageProcessor.getInterpolationMethods();
private static boolean fillWithBackground;
private static boolean processStack = true;
private double xscale, yscale, zscale;
private String title = "Untitled";
private Vector fields;
private double bgValue;
private boolean constainAspectRatio = true;
private TextField xField, yField, zField, widthField, heightField, depthField;
private Rectangle r;
private Object fieldWithFocus;
private int oldDepth;
public void run(String arg) {
imp = IJ.getImage();
Roi roi = imp.getRoi();
if (roi != null && !roi.isArea()) imp.deleteRoi(); // ignore any line selection
ImageProcessor ip = imp.getProcessor();
if (!showDialog(ip)) return;
if (newDepth > 0 && newDepth != oldDepth) {
newWindow = true;
processStack = true;
}
if ((ip.getWidth() > 1 && ip.getHeight() > 1) || newWindow)
ip.setInterpolationMethod(interpolationMethod);
else ip.setInterpolationMethod(ImageProcessor.NONE);
ip.setBackgroundValue(bgValue);
imp.startTiming();
try {
if (newWindow && imp.getStackSize() > 1 && processStack) createNewStack(imp, ip);
else scale(ip);
} catch (OutOfMemoryError o) {
IJ.outOfMemory("Scale");
}
IJ.showProgress(1.0);
}
void createNewStack(ImagePlus imp, ImageProcessor ip) {
int nSlices = imp.getStackSize();
int w = imp.getWidth(), h = imp.getHeight();
ImagePlus imp2 = imp.createImagePlus();
Rectangle r = ip.getRoi();
boolean crop = r.width != imp.getWidth() || r.height != imp.getHeight();
ImageStack stack1 = imp.getStack();
ImageStack stack2 = new ImageStack(newWidth, newHeight);
ImageProcessor ip1, ip2;
int method = interpolationMethod;
if (w == 1 || h == 1) method = ImageProcessor.NONE;
for (int i = 1; i <= nSlices; i++) {
IJ.showStatus("Scale: " + i + "/" + nSlices);
ip1 = stack1.getProcessor(i);
String label = stack1.getSliceLabel(i);
if (crop) {
ip1.setRoi(r);
ip1 = ip1.crop();
}
ip1.setInterpolationMethod(method);
ip2 = ip1.resize(newWidth, newHeight, averageWhenDownsizing);
if (ip2 != null) stack2.addSlice(label, ip2);
IJ.showProgress(i, nSlices);
}
imp2.setStack(title, stack2);
Calibration cal = imp2.getCalibration();
if (cal.scaled()) {
cal.pixelWidth *= 1.0 / xscale;
cal.pixelHeight *= 1.0 / yscale;
}
IJ.showProgress(1.0);
int[] dim = imp.getDimensions();
imp2.setDimensions(dim[2], dim[3], dim[4]);
if (imp.isComposite()) {
imp2 = new CompositeImage(imp2, ((CompositeImage) imp).getMode());
((CompositeImage) imp2).copyLuts(imp);
}
if (imp.isHyperStack()) imp2.setOpenAsHyperStack(true);
if (newDepth > 0 && newDepth != oldDepth)
imp2 = (new Resizer()).zScale(imp2, newDepth, interpolationMethod);
if (imp2 != null) {
imp2.show();
imp2.changes = true;
}
}
void scale(ImageProcessor ip) {
if (newWindow) {
Rectangle r = ip.getRoi();
ImagePlus imp2 = imp.createImagePlus();
imp2.setProcessor(title, ip.resize(newWidth, newHeight, averageWhenDownsizing));
Calibration cal = imp2.getCalibration();
if (cal.scaled()) {
cal.pixelWidth *= 1.0 / xscale;
cal.pixelHeight *= 1.0 / yscale;
}
imp2.show();
imp.trimProcessor();
imp2.trimProcessor();
imp2.changes = true;
} else {
if (processStack && imp.getStackSize() > 1) {
Undo.reset();
StackProcessor sp = new StackProcessor(imp.getStack(), ip);
sp.scale(xscale, yscale, bgValue);
} else {
ip.snapshot();
Undo.setup(Undo.FILTER, imp);
ip.setSnapshotCopyMode(true);
ip.scale(xscale, yscale);
ip.setSnapshotCopyMode(false);
}
imp.deleteRoi();
imp.updateAndDraw();
imp.changes = true;
}
}
boolean showDialog(ImageProcessor ip) {
String macroOptions = Macro.getOptions();
if (macroOptions != null) {
if (macroOptions.indexOf(" interpolate") != -1)
macroOptions.replaceAll(" interpolate", " interpolation=Bilinear");
else if (macroOptions.indexOf(" interpolation=") == -1)
macroOptions = macroOptions + " interpolation=None";
Macro.setOptions(macroOptions);
}
int bitDepth = imp.getBitDepth();
int stackSize = imp.getStackSize();
boolean isStack = stackSize > 1;
oldDepth = stackSize;
if (isStack) {
xstr = "1.0";
ystr = "1.0";
zstr = "1.0";
}
r = ip.getRoi();
int width = newWidth;
if (width == 0) width = r.width;
int height = (int) ((double) width * r.height / r.width);
xscale = Tools.parseDouble(xstr, 0.0);
yscale = Tools.parseDouble(ystr, 0.0);
zscale = 1.0;
if (xscale != 0.0 && yscale != 0.0) {
width = (int) (r.width * xscale);
height = (int) (r.height * yscale);
} else {
xstr = "-";
ystr = "-";
}
GenericDialog gd = new GenericDialog("Scale");
gd.addStringField("X Scale:", xstr);
gd.addStringField("Y Scale:", ystr);
if (isStack) gd.addStringField("Z Scale:", zstr);
gd.setInsets(5, 0, 5);
gd.addStringField("Width (pixels):", "" + width);
gd.addStringField("Height (pixels):", "" + height);
if (isStack) {
String label = "Depth (images):";
if (imp.isHyperStack()) {
int slices = imp.getNSlices();
int frames = imp.getNFrames();
if (slices == 1 && frames > 1) {
label = "Depth (frames):";
oldDepth = frames;
} else {
label = "Depth (slices):";
oldDepth = slices;
}
}
gd.addStringField(label, "" + oldDepth);
}
fields = gd.getStringFields();
for (int i = 0; i < fields.size(); i++) {
((TextField) fields.elementAt(i)).addTextListener(this);
((TextField) fields.elementAt(i)).addFocusListener(this);
}
xField = (TextField) fields.elementAt(0);
yField = (TextField) fields.elementAt(1);
if (isStack) {
zField = (TextField) fields.elementAt(2);
widthField = (TextField) fields.elementAt(3);
heightField = (TextField) fields.elementAt(4);
depthField = (TextField) fields.elementAt(5);
} else {
widthField = (TextField) fields.elementAt(2);
heightField = (TextField) fields.elementAt(3);
}
fieldWithFocus = xField;
gd.addChoice("Interpolation:", methods, methods[interpolationMethod]);
if (bitDepth == 8 || bitDepth == 24)
gd.addCheckbox("Fill with background color", fillWithBackground);
gd.addCheckbox("Average when downsizing", averageWhenDownsizing);
boolean hyperstack = imp.isHyperStack() || imp.isComposite();
if (isStack && !hyperstack) gd.addCheckbox("Process entire stack", processStack);
gd.addCheckbox("Create new window", newWindow);
title = WindowManager.getUniqueName(imp.getTitle());
gd.setInsets(10, 0, 0);
gd.addStringField("Title:", title, 12);
gd.showDialog();
if (gd.wasCanceled()) return false;
xstr = gd.getNextString();
ystr = gd.getNextString();
xscale = Tools.parseDouble(xstr, 0.0);
yscale = Tools.parseDouble(ystr, 0.0);
if (isStack) {
zstr = gd.getNextString();
zscale = Tools.parseDouble(ystr, 0.0);
}
String wstr = gd.getNextString();
newWidth = (int) Tools.parseDouble(wstr, 0);
newHeight = (int) Tools.parseDouble(gd.getNextString(), 0);
if (newHeight != 0 && (wstr.equals("-") || wstr.equals("0")))
newWidth = (int) (newHeight * (double) r.width / r.height);
if (newWidth == 0 || newHeight == 0) {
IJ.error("Scaler", "Width or height is 0");
return false;
}
if (xscale > 0.0 && yscale > 0.0) {
newWidth = (int) (r.width * xscale);
newHeight = (int) (r.height * yscale);
}
if (isStack) newDepth = (int) Tools.parseDouble(gd.getNextString(), 0);
interpolationMethod = gd.getNextChoiceIndex();
if (bitDepth == 8 || bitDepth == 24) fillWithBackground = gd.getNextBoolean();
averageWhenDownsizing = gd.getNextBoolean();
if (isStack && !hyperstack) processStack = gd.getNextBoolean();
if (hyperstack) processStack = true;
newWindow = gd.getNextBoolean();
if (xscale == 0.0) {
xscale = (double) newWidth / r.width;
yscale = (double) newHeight / r.height;
}
title = gd.getNextString();
if (fillWithBackground) {
Color bgc = Toolbar.getBackgroundColor();
if (bitDepth == 8) bgValue = ip.getBestIndex(bgc);
else if (bitDepth == 24) bgValue = bgc.getRGB();
} else bgValue = 0.0;
return true;
}
public void textValueChanged(TextEvent e) {
Object source = e.getSource();
double newXScale = xscale;
double newYScale = yscale;
double newZScale = zscale;
if (source == xField && fieldWithFocus == xField) {
String newXText = xField.getText();
newXScale = Tools.parseDouble(newXText, 0);
if (newXScale == 0) return;
if (newXScale != xscale) {
int newWidth = (int) (newXScale * r.width);
widthField.setText("" + newWidth);
if (constainAspectRatio) {
yField.setText(newXText);
int newHeight = (int) (newXScale * r.height);
heightField.setText("" + newHeight);
}
}
} else if (source == yField && fieldWithFocus == yField) {
String newYText = yField.getText();
newYScale = Tools.parseDouble(newYText, 0);
if (newYScale == 0) return;
if (newYScale != yscale) {
int newHeight = (int) (newYScale * r.height);
heightField.setText("" + newHeight);
}
} else if (source == zField && fieldWithFocus == zField) {
String newZText = zField.getText();
newZScale = Tools.parseDouble(newZText, 0);
if (newZScale == 0) return;
if (newZScale != zscale) {
int nSlices = imp.getStackSize();
if (imp.isHyperStack()) {
int slices = imp.getNSlices();
int frames = imp.getNFrames();
if (slices == 1 && frames > 1) nSlices = frames;
else nSlices = slices;
}
int newDepth = (int) (newZScale * nSlices);
depthField.setText("" + newDepth);
}
} else if (source == widthField && fieldWithFocus == widthField) {
int newWidth = (int) Tools.parseDouble(widthField.getText(), 0.0);
if (newWidth != 0) {
int newHeight = (int) (newWidth * (double) r.height / r.width);
heightField.setText("" + newHeight);
xField.setText("-");
yField.setText("-");
newXScale = 0.0;
newYScale = 0.0;
}
} else if (source == depthField && fieldWithFocus == depthField) {
int newDepth = (int) Tools.parseDouble(depthField.getText(), 0.0);
if (newDepth != 0) {
zField.setText("-");
newZScale = 0.0;
}
}
xscale = newXScale;
yscale = newYScale;
zscale = newZScale;
}
public void focusGained(FocusEvent e) {
fieldWithFocus = e.getSource();
if (fieldWithFocus == widthField) constainAspectRatio = true;
else if (fieldWithFocus == yField) constainAspectRatio = false;
}
public void focusLost(FocusEvent e) {}
}
/** This plugin implements the Image/Rotate/Arbitrarily command. */
public class Rotator implements ExtendedPlugInFilter, DialogListener {
private int flags = DOES_ALL | SUPPORTS_MASKING | PARALLELIZE_STACKS;
private static double angle = 15.0;
private static boolean fillWithBackground;
private static boolean enlarge;
private static int gridLines = 1;
private ImagePlus imp;
private int bitDepth;
private boolean canEnlarge;
private boolean isEnlarged;
private GenericDialog gd;
private PlugInFilterRunner pfr;
private String[] methods = ImageProcessor.getInterpolationMethods();
private static int interpolationMethod = ImageProcessor.BILINEAR;
public int setup(String arg, ImagePlus imp) {
this.imp = imp;
if (imp != null) {
bitDepth = imp.getBitDepth();
Roi roi = imp.getRoi();
Rectangle r = roi != null ? roi.getBounds() : null;
canEnlarge =
r == null
|| (r.x == 0 && r.y == 0 && r.width == imp.getWidth() && r.height == imp.getHeight());
}
return flags;
}
public void run(ImageProcessor ip) {
if (enlarge && gd.wasOKed())
synchronized (this) {
if (!isEnlarged) {
enlargeCanvas();
isEnlarged = true;
}
}
if (isEnlarged) { // enlarging may have made the ImageProcessor invalid, also for the parallel
// threads
int slice = pfr.getSliceNumber();
if (imp.getStackSize() == 1) ip = imp.getProcessor();
else ip = imp.getStack().getProcessor(slice);
}
ip.setInterpolationMethod(interpolationMethod);
if (fillWithBackground) {
Color bgc = Toolbar.getBackgroundColor();
if (bitDepth == 8) ip.setBackgroundValue(ip.getBestIndex(bgc));
else if (bitDepth == 24) ip.setBackgroundValue(bgc.getRGB());
} else ip.setBackgroundValue(0);
ip.rotate(angle);
if (!gd.wasOKed()) drawGridLines(gridLines);
if (isEnlarged && imp.getStackSize() == 1) {
imp.changes = true;
imp.updateAndDraw();
Undo.setup(Undo.COMPOUND_FILTER_DONE, imp);
}
}
void enlargeCanvas() {
imp.unlock();
if (imp.getStackSize() == 1) Undo.setup(Undo.COMPOUND_FILTER, imp);
IJ.run("Select All");
IJ.run("Rotate...", "angle=" + angle);
Roi roi = imp.getRoi();
Rectangle r = roi.getBounds();
if (r.width < imp.getWidth()) r.width = imp.getWidth();
if (r.height < imp.getHeight()) r.height = imp.getHeight();
IJ.showStatus("Rotate: Enlarging...");
IJ.run(
"Canvas Size...",
"width="
+ r.width
+ " height="
+ r.height
+ " position=Center "
+ (fillWithBackground ? "" : "zero"));
IJ.showStatus("Rotating...");
}
void drawGridLines(int lines) {
ImageCanvas ic = imp.getCanvas();
if (ic == null) return;
if (lines == 0) {
ic.setDisplayList(null);
return;
}
GeneralPath path = new GeneralPath();
float width = imp.getWidth();
float height = imp.getHeight();
float xinc = width / lines;
float yinc = height / lines;
float xstart = xinc / 2f;
float ystart = yinc / 2f;
for (int i = 0; i < lines; i++) {
path.moveTo(xstart + xinc * i, 0f);
path.lineTo(xstart + xinc * i, height);
path.moveTo(0f, ystart + yinc * i);
path.lineTo(width, ystart + yinc * i);
}
ic.setDisplayList(path, null, null);
}
public int showDialog(ImagePlus imp, String command, PlugInFilterRunner pfr) {
this.pfr = pfr;
String macroOptions = Macro.getOptions();
if (macroOptions != null) {
if (macroOptions.indexOf(" interpolate") != -1)
macroOptions.replaceAll(" interpolate", " interpolation=Bilinear");
else if (macroOptions.indexOf(" interpolation=") == -1)
macroOptions = macroOptions + " interpolation=None";
Macro.setOptions(macroOptions);
}
gd = new GenericDialog("Rotate", IJ.getInstance());
gd.addNumericField("Angle (degrees):", angle, (int) angle == angle ? 1 : 2);
gd.addNumericField("Grid Lines:", gridLines, 0);
gd.addChoice("Interpolation:", methods, methods[interpolationMethod]);
if (bitDepth == 8 || bitDepth == 24)
gd.addCheckbox("Fill with Background Color", fillWithBackground);
if (canEnlarge) gd.addCheckbox("Enlarge Image to Fit Result", enlarge);
else enlarge = false;
gd.addPreviewCheckbox(pfr);
gd.addDialogListener(this);
gd.showDialog();
drawGridLines(0);
if (gd.wasCanceled()) {
return DONE;
}
if (!enlarge) flags |= KEEP_PREVIEW; // standard filter without enlarge
else if (imp.getStackSize() == 1) flags |= NO_CHANGES; // undoable as a "compound filter"
return IJ.setupDialog(imp, flags);
}
public boolean dialogItemChanged(GenericDialog gd, AWTEvent e) {
angle = gd.getNextNumber();
// only check for invalid input to "angle", don't care about gridLines
if (gd.invalidNumber()) {
if (gd.wasOKed()) IJ.error("Angle is invalid.");
return false;
}
gridLines = (int) gd.getNextNumber();
interpolationMethod = gd.getNextChoiceIndex();
if (bitDepth == 8 || bitDepth == 24) fillWithBackground = gd.getNextBoolean();
if (canEnlarge) enlarge = gd.getNextBoolean();
return true;
}
public void setNPasses(int nPasses) {}
}
