ij.plugin.Clipboard Maven / Gradle / Ivy
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ImageJ is an open source Java image processing program inspired by NIH Image for the Macintosh.
package ij.plugin;
import java.awt.*;
import java.awt.event.*;
import java.awt.datatransfer.*;
import java.awt.image.*;
import java.io.*;
import java.lang.reflect.*;
import ij.*;
import ij.process.*;
import ij.gui.*;
import ij.plugin.frame.Editor;
import ij.text.TextWindow;
import ij.util.Tools;
/** Copies and pastes images to the clipboard. */
public class Clipboard implements PlugIn, Transferable {
static java.awt.datatransfer.Clipboard clipboard;
public void run(String arg) {
if (IJ.altKeyDown()) {
if (arg.equals("copy"))
arg = "scopy";
else if (arg.equals("paste"))
arg = "spaste";
}
if (arg.equals("copy"))
copy(false);
else if (arg.equals("paste"))
paste();
else if (arg.equals("cut"))
copy(true);
else if (arg.equals("scopy"))
copyToSystem();
else if (arg.equals("showsys"))
showSystemClipboard();
else if (arg.equals("show"))
showInternalClipboard();
}
void copy(boolean cut) {
ImagePlus imp = WindowManager.getCurrentImage();
if (imp!=null)
imp.copy(cut);
else
IJ.noImage();
}
void paste() {
if (ImagePlus.getClipboard()==null)
showSystemClipboard();
else {
ImagePlus imp = WindowManager.getCurrentImage();
if (imp!=null)
imp.paste();
else
showInternalClipboard ();
}
}
void setup() {
if (clipboard==null)
clipboard = Toolkit.getDefaultToolkit().getSystemClipboard();
}
void copyToSystem() {
setup();
try {
clipboard.setContents(this, null);
} catch (Throwable t) {}
}
void showSystemClipboard() {
setup();
IJ.showStatus("Opening system clipboard...");
try {
Transferable transferable = clipboard.getContents(null);
boolean imageSupported = transferable.isDataFlavorSupported(DataFlavor.imageFlavor);
boolean textSupported = transferable.isDataFlavorSupported(DataFlavor.stringFlavor);
if (!imageSupported && IJ.isMacOSX() && !IJ.isJava16()) {
// attempt to open PICT file using QuickTime for Java
Object mc = IJ.runPlugIn("MacClipboard", "");
if (mc!=null && (mc instanceof ImagePlus) && ((ImagePlus)mc).getImage()!=null)
return;
}
if (imageSupported) {
Image img = (Image)transferable.getTransferData(DataFlavor.imageFlavor);
if (img==null) {
IJ.error("Unable to convert image on system clipboard");
IJ.showStatus("");
return;
}
int width = img.getWidth(null);
int height = img.getHeight(null);
BufferedImage bi = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
Graphics g = bi.createGraphics();
g.drawImage(img, 0, 0, null);
g.dispose();
WindowManager.checkForDuplicateName = true;
new ImagePlus("Clipboard", bi).show();
} else if (textSupported) {
String text = (String)transferable.getTransferData(DataFlavor.stringFlavor);
if (IJ.isMacintosh())
text = Tools.fixNewLines(text);
Editor ed = new Editor();
ed.setSize(600, 300);
ed.create("Clipboard", text);
IJ.showStatus("");
} else
IJ.error("Unable to find an image on the system clipboard");
} catch (Throwable e) {
IJ.handleException(e);
}
}
public DataFlavor[] getTransferDataFlavors() {
return new DataFlavor[] { DataFlavor.imageFlavor };
}
public boolean isDataFlavorSupported(DataFlavor flavor) {
return DataFlavor.imageFlavor.equals(flavor);
}
public Object getTransferData(DataFlavor flavor) throws UnsupportedFlavorException {
if (!isDataFlavorSupported(flavor))
throw new UnsupportedFlavorException(flavor);
ImagePlus imp = WindowManager.getCurrentImage();
if (imp!=null) {
ImageProcessor ip;
if (imp.isComposite()) {
ip = new ColorProcessor(imp.getImage());
ip.setRoi(imp.getRoi());
} else
ip = imp.getProcessor();
ip = ip.crop();
int w = ip.getWidth();
int h = ip.getHeight();
IJ.showStatus(w+"x"+h+ " image copied to system clipboard");
Image img = IJ.getInstance().createImage(w, h);
Graphics g = img.getGraphics();
g.drawImage(ip.createImage(), 0, 0, null);
g.dispose();
return img;
} else {
//IJ.noImage();
return null;
}
}
void showInternalClipboard() {
ImagePlus clipboard = ImagePlus.getClipboard();
if (clipboard!=null) {
ImageProcessor ip = clipboard.getProcessor();
ImagePlus imp2 = new ImagePlus("Clipboard", ip.duplicate());
Roi roi = clipboard.getRoi();
imp2.deleteRoi();
if (roi!=null && roi.isArea() && roi.getType()!=Roi.RECTANGLE) {
roi = (Roi)roi.clone();
roi.setLocation(0, 0);
imp2.setRoi(roi);
IJ.run(imp2, "Clear Outside", null);
imp2.deleteRoi();
}
WindowManager.checkForDuplicateName = true;
imp2.show();
} else
IJ.error("The internal clipboard is empty.");
}
/**
boolean displayMacImage(Transferable t) {
Image img = getMacImage(t);
if (img!=null) {
WindowManager.checkForDuplicateName = true;
new ImagePlus("Clipboard", img).show();
}
return img!=null;
}
// Mac OS X's data transfer handling is horribly broken. We sometimes
// need to use the "image/x-pict" MIME type and then Quicktime
// for Java in order to get the image data.
Image getMacImage(Transferable t) {
if (!isQTJavaInstalled())
return null;
Image img = null;
DataFlavor[] d = t.getTransferDataFlavors();
if (d==null || d.length==0)
return null;
try {
Object is = t.getTransferData(d[0]);
if (is==null || !(is instanceof InputStream))
return null;
img = getImageFromPictStream((InputStream)is);
} catch (Exception e) {}
return img;
}
// Converts a PICT to an AWT image using QuickTime for Java.
// This code was contributed by Gord Peters.
Image getImageFromPictStream(InputStream is) {
try {
ByteArrayOutputStream baos= new ByteArrayOutputStream();
// We need to strip the header from the data because a PICT file
// has a 512 byte header and then the data, but in our case we only
// need the data. --GP
byte[] header= new byte[512];
byte[] buf= new byte[4096];
int retval= 0, size= 0;
baos.write(header, 0, 512);
while ( (retval= is.read(buf, 0, 4096)) > 0)
baos.write(buf, 0, retval);
baos.close();
size = baos.size();
//IJ.log("size: "+size); IJ.wait(2000);
if (size<=0)
return null;
byte[] imgBytes= baos.toByteArray();
// Again with the uglyness. Here we need to use the Quicktime
// for Java code in order to create an Image object from
// the PICT data we received on the clipboard. However, in
// order to get this to compile on other platforms, we use
// the Java reflection API.
//
// For reference, here is the equivalent code without
// reflection:
//
//
// if (QTSession.isInitialized() == false) {
// QTSession.open();
// }
// QTHandle handle= new QTHandle(imgBytes);
// GraphicsImporter gi=
// new GraphicsImporter(QTUtils.toOSType("PICT"));
// gi.setDataHandle(handle);
// QDRect qdRect= gi.getNaturalBounds();
// GraphicsImporterDrawer gid= new GraphicsImporterDrawer(gi);
// QTImageProducer qip= new QTImageProducer(gid,
// new Dimension(qdRect.getWidth(),
// qdRect.getHeight()));
// return(Toolkit.getDefaultToolkit().createImage(qip));
//
// --GP
//IJ.log("quicktime.QTSession");
Class c = Class.forName("quicktime.QTSession");
Method m = c.getMethod("isInitialized", null);
Boolean b= (Boolean)m.invoke(null, null);
if (b.booleanValue() == false) {
m= c.getMethod("open", null);
m.invoke(null, null);
}
c= Class.forName("quicktime.util.QTHandle");
Constructor con = c.getConstructor(new Class[] {imgBytes.getClass() });
Object handle= con.newInstance(new Object[] { imgBytes });
String s= new String("PICT");
c = Class.forName("quicktime.util.QTUtils");
m = c.getMethod("toOSType", new Class[] { s.getClass() });
Integer type= (Integer)m.invoke(null, new Object[] { s });
c = Class.forName("quicktime.std.image.GraphicsImporter");
con = c.getConstructor(new Class[] { type.TYPE });
Object importer= con.newInstance(new Object[] { type });
m = c.getMethod("setDataHandle",
new Class[] { Class.forName("quicktime.util." + "QTHandleRef") });
m.invoke(importer, new Object[] { handle });
m = c.getMethod("getNaturalBounds", null);
Object rect= m.invoke(importer, null);
c = Class.forName("quicktime.app.view.GraphicsImporterDrawer");
con = c.getConstructor(new Class[] { importer.getClass() });
Object iDrawer = con.newInstance(new Object[] { importer });
m = rect.getClass().getMethod("getWidth", null);
Integer width= (Integer)m.invoke(rect, null);
m = rect.getClass().getMethod("getHeight", null);
Integer height= (Integer)m.invoke(rect, null);
Dimension d= new Dimension(width.intValue(), height.intValue());
c = Class.forName("quicktime.app.view.QTImageProducer");
con = c.getConstructor(new Class[] { iDrawer.getClass(), d.getClass() });
Object producer= con.newInstance(new Object[] { iDrawer, d });
if (producer instanceof ImageProducer)
return(Toolkit.getDefaultToolkit().createImage((ImageProducer)producer));
} catch (Exception e) {
IJ.showStatus("QuickTime for java error");
}
return null;
}
// Retuns true if QuickTime for Java is installed.
// This code was contributed by Gord Peters.
boolean isQTJavaInstalled() {
boolean isInstalled = false;
try {
Class c= Class.forName("quicktime.QTSession");
isInstalled = true;
} catch (Exception e) {}
return isInstalled;
}
*/
}
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