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ImageJ is an open source Java image processing program inspired by NIH Image for the Macintosh.
package ij.plugin;
import ij.*;
import ij.gui.*;
import ij.io.*;
import ij.process.ImageProcessor;
import ij.plugin.frame.Recorder;
import java.io.*;
import java.awt.Point;
import java.awt.datatransfer.*;
import java.awt.dnd.*;
import java.util.*;
import java.util.Iterator;
import java.util.ArrayList;
/** This class opens images, roi's, luts and text files dragged and dropped on the "ImageJ" window.
It is based on the Draw_And_Drop plugin by Eric Kischell ([email protected]).
10 November 2006: Albert Cardona added Linux support and an
option to open all images in a dragged folder as a stack.
*/
public class DragAndDrop implements PlugIn, DropTargetListener, Runnable {
private Iterator iterator;
private static boolean convertToRGB;
private static boolean virtualStack;
private boolean openAsVirtualStack;
public void run(String arg) {
ImageJ ij = IJ.getInstance();
ij.setDropTarget(null);
new DropTarget(ij, this);
new DropTarget(Toolbar.getInstance(), this);
new DropTarget(ij.getStatusBar(), this);
}
public void drop(DropTargetDropEvent dtde) {
dtde.acceptDrop(DnDConstants.ACTION_COPY);
DataFlavor[] flavors = null;
try {
Transferable t = dtde.getTransferable();
iterator = null;
flavors = t.getTransferDataFlavors();
if (IJ.debugMode) IJ.log("DragAndDrop.drop: "+flavors.length+" flavors");
for (int i=0; i1 && (int)s.charAt(1)==0)
s = fixLinuxString(s);
ArrayList list = new ArrayList();
if (s.indexOf("href=\"")!=-1 || s.indexOf("src=\"")!=-1) {
s = parseHTML(s);
if (IJ.debugMode) IJ.log(" url: "+s);
list.add(s);
this.iterator = list.iterator();
break;
}
BufferedReader br = new BufferedReader(new StringReader(s));
String tmp;
while (null != (tmp = br.readLine())) {
tmp = java.net.URLDecoder.decode(tmp.replaceAll("\\+","%2b"), "UTF-8");
if (tmp.startsWith("file://")) tmp = tmp.substring(7);
if (IJ.debugMode) IJ.log(" content: "+tmp);
if (tmp.startsWith("http://"))
list.add(s);
else
list.add(new File(tmp));
}
this.iterator = list.iterator();
break;
}
}
if (iterator!=null) {
Thread thread = new Thread(this, "DrawAndDrop");
thread.setPriority(Math.max(thread.getPriority()-1, Thread.MIN_PRIORITY));
thread.start();
}
} catch(Exception e) {
dtde.dropComplete(false);
return;
}
dtde.dropComplete(true);
if (flavors==null || flavors.length==0) {
if (IJ.isMacOSX())
IJ.error("First drag and drop ignored. Please try again. You can avoid this\n"
+"problem by dragging to the toolbar instead of the status bar.");
else
IJ.error("Drag and drop failed");
}
}
private String fixLinuxString(String s) {
StringBuffer sb = new StringBuffer(200);
for (int i=0; i=0) {
int index2 = s.indexOf("\"", index1+5);
if (index2>0)
return s.substring(index1+5, index2);
}
index1 = s.indexOf("href=\"");
if (index1>=0) {
int index2 = s.indexOf("\"", index1+6);
if (index2>0)
return s.substring(index1+6, index2);
}
return s;
}
public void dragEnter(DropTargetDragEvent e) {
IJ.showStatus("<>");
if (IJ.debugMode) IJ.log("DragEnter: "+e.getLocation());
e.acceptDrag(DnDConstants.ACTION_COPY);
openAsVirtualStack = false;
}
public void dragOver(DropTargetDragEvent e) {
if (IJ.debugMode) IJ.log("DragOver: "+e.getLocation());
Point loc = e.getLocation();
int buttonSize = Toolbar.getButtonSize();
int width = IJ.getInstance().getSize().width;
openAsVirtualStack = width-loc.x<=(buttonSize+buttonSize/3);
if (openAsVirtualStack)
IJ.showStatus("<>");
else
IJ.showStatus("<>");
}
public void dragExit(DropTargetEvent e) {
IJ.showStatus("");
}
public void dropActionChanged(DropTargetDragEvent e) {}
public void run() {
Iterator iterator = this.iterator;
while(iterator.hasNext()) {
Object obj = iterator.next();
String str = ""+obj;
if (str!=null && str.startsWith("https:/")) {
if (!str.startsWith("https://"))
str = str.replace("https:/", "https://");
obj = str;
}
if (obj!=null && (obj instanceof String))
openURL((String)obj);
else
openFile((File)obj);
}
}
/** Open a URL. */
private void openURL(String url) {
if (IJ.debugMode) IJ.log("DragAndDrop.openURL: "+url);
if (url!=null)
IJ.open(url);
}
/** Open a file. If it's a directory, ask to open all images as a sequence in a stack or individually. */
public void openFile(File f) {
if (IJ.debugMode) IJ.log("DragAndDrop.openFile: "+f);
try {
if (null == f) return;
String path = f.getCanonicalPath();
if (f.exists()) {
if (f.isDirectory()) {
if (openAsVirtualStack)
IJ.run("Image Sequence...", "open=[" + path + "] sort use");
else
openDirectory(f, path);
} else {
if (openAsVirtualStack && (path.endsWith(".tif")||path.endsWith(".TIF")))
(new FileInfoVirtualStack()).run(path);
else if (openAsVirtualStack && (path.endsWith(".avi")||path.endsWith(".AVI")))
IJ.run("AVI...", "open=["+path+"] use");
else if (openAsVirtualStack && (path.endsWith(".txt"))) {
ImageProcessor ip = (new TextReader()).open(path);
if (ip!=null)
new ImagePlus(f.getName(),ip).show();
} else {
Recorder.recordOpen(path);
(new Opener()).openAndAddToRecent(path);
}
OpenDialog.setLastDirectory(f.getParent()+File.separator);
OpenDialog.setLastName(f.getName());
OpenDialog.setDefaultDirectory(f.getParent());
}
} else {
IJ.log("File not found: " + path);
}
} catch (Throwable e) {
if (!Macro.MACRO_CANCELED.equals(e.getMessage()))
IJ.handleException(e);
}
}
private void openDirectory(File f, String path) {
if (path==null) return;
path = IJ.addSeparator(path);
String[] names = f.list();
names = (new FolderOpener()).trimFileList(names);
if (names==null)
return;
FolderOpener fo = new FolderOpener();
fo.setDirectory(path);
fo.run("");
}
}
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