Class ListVirtualStack

ij/src/main/java/ij/plugin/ListVirtualStack.java:16–225

This plugin opens images specified by list of file paths as a virtual stack. It implements the File/Import/Stack From List command.

/** This plugin opens images specified by list of file paths as a virtual stack.
	It implements the File/Import/Stack From List command. */
public class ListVirtualStack extends VirtualStack implements PlugIn {
	private static boolean virtual;
	private String[] list;
	private String[] labels;
	private int nImages;
	private int imageWidth, imageHeight;
	private ImagePlus imp2;

	public void run(String arg) {
		OpenDialog  od = new OpenDialog("Open Image List", arg);
		String name = od.getFileName();
		if (name==null) return;
		String  dir = od.getDirectory();
		//IJ.log("ListVirtualStack: "+dir+"   "+name);
		list = open(dir+name);
		if (list==null) return;
		nImages = list.length;
		labels = new String[nImages];
		//for (int i=0; i<list.length; i++)
		//	IJ.log(i+"  "+list[i]);
		if (list.length==0) {
			IJ.error("Stack From List", "The file path list is empty");
			return;
		}
		if (!list[0].startsWith("http://")) {
			File f = new File(list[0]);
			if (!f.exists()) {
				IJ.error("Stack From List", "The first file on the list does not exist:\n \n"+list[0]);
				return;
			}
		}
		ImagePlus imp = IJ.openImage(list[0]);
		if (imp==null) return;
		imageWidth = imp.getWidth();
		imageHeight = imp.getHeight();
		setBitDepth(imp.getBitDepth());
		ImageStack stack = this;
		if (!showDialog(imp)) return;
		if (!virtual)
			stack = convertToRealStack(imp);
		imp2 = new ImagePlus(name, stack);
		imp2.setCalibration(imp.getCalibration());
		imp2.setFileInfo(imp.getOriginalFileInfo());
		imp2.show();
	}
	
	boolean showDialog(ImagePlus imp) {
		double bytesPerPixel = 1;
		switch (imp.getType()) {
			case ImagePlus.GRAY16:
				bytesPerPixel=2; break;
			case ImagePlus.COLOR_RGB:
			case ImagePlus.GRAY32:
				bytesPerPixel=4; break;
		}
		double size = (imageWidth*imageHeight*bytesPerPixel)/(1024.0*1024.0);
		int digits = size*getSize()<10.0?1:0;
		String size1 = IJ.d2s(size*getSize(), digits)+" MB";