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VirtualStack |
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package ij;
import ij.process.*;
import ij.io.*;
import java.awt.image.ColorModel;
/** This class represents an array of disk-resident images. */
public class VirtualStack extends ImageStack {
static final int INITIAL_SIZE = 100;
String path;
int nSlices;
String[] names;
/** Creates a new, empty virtual stack. */
public VirtualStack(int width, int height, ColorModel cm, String path) {
super(width, height, cm);
this.path = path;
names = new String[INITIAL_SIZE];
//IJ.log("VirtualStack: "+path);
}
/** Adds an image to the end of the stack. */
public void addSlice(String name) {
if (name==null)
throw new IllegalArgumentException("'name' is null!");
nSlices++;
//IJ.log("addSlice: "+nSlices+" "+name);
if (nSlices==names.length) {
String[] tmp = new String[nSlices*2];
System.arraycopy(names, 0, tmp, 0, nSlices);
names = tmp;
}
names[nSlices-1] = name;
}
/** Does nothing. */
public void addSlice(String sliceLabel, Object pixels) {
}
/** Does nothing.. */
public void addSlice(String sliceLabel, ImageProcessor ip) {
}
/** Does noting. */
public void addSlice(String sliceLabel, ImageProcessor ip, int n) {
}
/** Deletes the specified slice, were 1<=n<=nslices. */
public void deleteSlice(int n) {
if (n<1 || n>nSlices)
throw new IllegalArgumentException("Argument out of range: "+n);
if (nSlices<1)
return;
for (int i=n; i<nSlices; i++)
names[i-1] = names[i];
names[nSlices-1] = null;
nSlices--;
}
/** Deletes the last slice in the stack. */
public void deleteLastSlice() {
if (nSlices>0)
deleteSlice(nSlices);
}
/** Returns the pixel array for the specified slice, were 1<=n<=nslices. */
public Object getPixels(int n) {
ImageProcessor ip = getProcessor(n);
if (ip!=null)
return ip.getPixels();
else
return null;
}
/** Assigns a pixel array to the specified slice,
were 1<=n<=nslices. */
public void setPixels(Object pixels, int n) {
}
/** Returns an ImageProcessor for the specified slice,
were 1<=n<=nslices. Returns null if the stack is empty.
*/
public ImageProcessor getProcessor(int n) {
//IJ.log("getProcessor: "+n+" "+names[n-1]);
ImagePlus imp = new Opener().openImage(path, names[n-1]);
if (imp!=null) {
int w = imp.getWidth();
int h = imp.getHeight();
int type = imp.getType();
ColorModel cm = imp.getProcessor().getColorModel();
} else
return null;
return imp.getProcessor();
}
/** Returns the number of slices in this stack. */
public int getSize() {
return nSlices;
}
/** Returns the file name of the Nth image. */
public String getSliceLabel(int n) {
return names[n-1];
}
/** Returns null. */
public Object[] getImageArray() {
return null;
}
/** Does nothing. */
public void setSliceLabel(String label, int n) {
}
/** Always return true. */
public boolean isVirtual() {
return true;
}
/** Does nothing. */
public void trim() {
}
/** Returns the path to the directory containing the images. */
public String getDirectory() {
return path;
}
/** Returns the file name of the specified slice, were 1<=n<=nslices. */
public String getFileName(int n) {
return names[n-1];
}
}
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VirtualStack |
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