How to get the mouse drag event ?

I Have a JTextField and I want to move a selected text in the JTextField from a location to another by pressing the mouse on selected text and dragging it to newer
location in the same text field (Same as Microsoft word does).Will u help me out please .

But i can't get it working for the same component i.e dragging a text from the JTextField and dropping it in the same text field
will u please help me with the sample code for 1 JTextField.I will really be very thankful to u
Please

Similar Messages

How to get the mouse clicked positions on a movie

I am doing a project on Objects tracking
I am capturing the video data using webcamera and playing it using processor in JMF
my problem is , if i click on the movie that is being played currently, i have to display the co-ordinates of the mouse clicked position.
can anyone help me?
Thanks in advance
Sudha

hello
i have attache my coding here
see to it
import java.io.*;
import java.io.IOException;
import java.net.*;
import java.net.URL;
import java.awt.*;
import java.awt.image.*;
import java.awt.event.*;
import java.awt.event.MouseEvent;
import java.awt.event.MouseMotionListener;
import javax.swing.*;
import javax.media.*;
import javax.media.util.*;
import javax.media.Buffer.*;
import javax.media.format.*;
import javax.media.Format;
import javax.media.protocol.*;
import javax.media.control.*;
import javax.media.rtp.*;
import javax.media.protocol.DataSource;
import com.sun.media.ui.*;
import javax.media.format.YUVFormat;
import java.util.*;
import java.util.Vector;
import javax.imageio.*;
import javax.imageio.stream.*;
class capturing1 extends JInternalFrame implements ActionListener,MouseListener,MouseMotionListener,ControllerListener
* The entry point of the example
* @param args The command line arguments
 int mark_flg=0;
 int xpos=0,ypos=0;
 mdetect mde=new mdetect();
 protected boolean transitionOK;
 protected Object synchronizer;
 protected Processor processor;
 JButton mark;
 JButton track;
capturing1(String fname)
{ super(fname, true, true, true, true);
 getContentPane().setLayout( new BorderLayout() );
 setSize(320, 10);
 setLocation(50, 50);
 setVisible(true);
 processor = null;
synchronizer = new Object();
transitionOK = true;
 mark=new JButton("mark");
 track=new JButton("track");
 mark.setSize(25,25);
 track.setSize(25,25);
 mark.addActionListener(this);
 track.addActionListener(this);
 getContentPane().add("East", mark);
 //getContentPane().add("West", track);
 try {
 UIManager.setLookAndFeel("javax.swing.plaf.metal.MetalLookAndFeel");
 } catch (Exception e) {
 System.err.println("Could not initialize java.awt Metal lnf");
 Manager.setHint(Manager.LIGHTWEIGHT_RENDERER, new Boolean(true));
 addMouseListener(this);
 addMouseMotionListener(this);
 loadAndStart(fname);
public void loadAndStart(String fn)
boolean status;
status = loadFile(fn);
if (status) status = configure();
 TrackControl tc[] = processor.getTrackControls();
 if (tc == null) {
 System.err.println("Failed to obtain track controls from the processor.");
 System.exit(0);
 // Search for the track control for the video track.
 TrackControl videoTrack = null;
 for (int i = 0; i < tc.length; i++) {
 if (tc.getFormat() instanceof VideoFormat) {
 videoTrack = tc[i];
 break;
 if (videoTrack == null) {
 System.err.println("The input media does not contain a video track.");
 System.exit(0);
 try {
 Codec codec[] = {mde};
 videoTrack.setCodecChain(codec);
 } catch (UnsupportedPlugInException e) {
 System.err.println("The processor does not support effects.");
if (status) status = realize();
public boolean loadFile(String fn)
boolean status;
URL url;
 status = false;
 /*Vector v = CaptureDeviceManager.getDeviceList(new VideoFormat(
VideoFormat.YUV));
System.out.println(((CaptureDeviceInfo) v.get(0)).getName());
try{
 MediaLocator ml = ((CaptureDeviceInfo) v.get(0)).getLocator();
System.out.println(ml.toString());
 processor = Manager.createProcessor(ml);processor.addControllerListener(this);status = true;
}catch(Exception e){
System.err.println("Exception occured\n");
e.printStackTrace();
 System.exit(0);
try {
url = new URL("file:"+
System.getProperty("user.dir")+
"/"+fn);
if (url != null) {
processor = Manager.createProcessor(url);
 processor.addControllerListener(this);
status = true;
} catch (NoProcessorException npe) {
System.out.println("Unable to create a processor!");
} catch (IOException ioe) {
System.out.println("Unable to connect to source!");
return status;
public boolean configure()
boolean status;
status = false;
// Put the Processor into the configured state
processor.configure();
if (waitFor(processor.Configured)) {
// Set the content descriptor to null so that the
// processor can be used as a player
processor.setContentDescriptor(null);
status = true;
} else {
System.out.println("Unable to configure the processor!");
return status;
public boolean realize()
boolean status;
Component c;
status = false;
// Put the Processor into the realized state
processor.prefetch();
if (waitFor(processor.Prefetched)) {
// The Processor has been realized so the
// components can be layed out
c = processor.getVisualComponent();
getContentPane().add("Center", c);
c = processor.getControlPanelComponent();
if (c != null)
 getContentPane().add("South", c);
System.out.println("button added");
// Start the Processor
 validate();System.out.println("button added");
processor.start();
status = true;
} else {
System.out.println("Unable to realize the processor!");
return status;
protected boolean waitFor(int state)
// Make this block synchronized
synchronized(synchronizer) {
try {
while ((processor.getState() != state) &&
(transitionOK)) {
synchronizer.wait();
} catch (InterruptedException ie) {
// Ignore it
return transitionOK;
public synchronized void controllerUpdate(ControllerEvent evt)
if ( (evt instanceof ConfigureCompleteEvent) ||
(evt instanceof RealizeCompleteEvent) ||
(evt instanceof PrefetchCompleteEvent) ) {
// Synchronize this block
synchronized(synchronizer) {
transitionOK = true;
synchronizer.notifyAll();
} else if (evt instanceof ResourceUnavailableEvent) {
// Synchronize this block
synchronized(synchronizer) {
transitionOK = false;
synchronizer.notifyAll();
public void mouseMoved(MouseEvent e) {
//saySomething("Mouse moved", e);
public void mouseDragged(MouseEvent e) {
saySomething("Mouse dragged", e);
public void mousePressed(MouseEvent e) {
//saySomething("Mouse pressed; # of clicks: "
// + e.getClickCount(), e);
public void mouseReleased(MouseEvent e) {
//saySomething("Mouse released; # of clicks: "
// + e.getClickCount(), e);
public void mouseEntered(MouseEvent e) {
//saySomething("Mouse entered", e);
public void mouseExited(MouseEvent e) {
//saySomething("Mouse exited", e);
public void mouseClicked(MouseEvent e) {
saySomething("Mouse clicked (# of clicks: "
+ e.getClickCount() + ")", e);
 xpos=e.getX(); ypos=e.getY();
void saySomething(String eventDescription, MouseEvent e) {
 System.out.println("The Object is at the point "+"x ,"+e.getX()+ "y" + e.getY());
 if(mark_flg==1){
 mdetect.markObject(xpos,ypos);
 //mark_flg=0;
public void actionPerformed(ActionEvent e)
 if(e.getSource()==track)
 System.out.println("track pressed");
 processor.start();
 if(e.getSource()==mark)
 mark_flg=1;//processor.stop();
 System.out.println("mark pressed");
public class track extends Frame
{ JDesktopPane desktop;
public track(String f)
 setLayout( new BorderLayout() );
 desktop = new JDesktopPane();
 desktop.setDoubleBuffered(true);
 add("Center", desktop);
 setSize(640, 480);
 capturing1 cap1=new capturing1(f);
 desktop.add(cap1);
 setVisible(true);
public static void main(String args[])
new track(args[0]);
/****************************** mdetect class**********************************************/
class mdetect implements Effect
 //Processor processor;
static boolean marked=true; static int mark_flg=0; int a=1;
static int xpos=0,ypos=0;
private Format inputFormat;
private Format outputFormat;
private Format[] inputFormats;
private Format[] outputFormats;
private int[] bwPixels;
private byte[] bwData;
private RGBFormat vfIn = null;
private static int imageWidth = 0;
private int imageHeight = 0;
private int imageArea = 0;
static int[] p1;
mdetect()
System.out.println("mdetect called");
inputFormats = new Format[] {
new RGBFormat(null,
Format.NOT_SPECIFIED,
Format.byteArray,
Format.NOT_SPECIFIED,
 24,
3, 2, 1,
3, Format.NOT_SPECIFIED,
Format.TRUE,
Format.NOT_SPECIFIED)
outputFormats = new Format[] {
new RGBFormat(null,
Format.NOT_SPECIFIED,
Format.byteArray,
Format.NOT_SPECIFIED,
 24,
3, 2, 1,
3, Format.NOT_SPECIFIED,
Format.TRUE,
Format.NOT_SPECIFIED)
 public Format[] getSupportedInputFormats() {
return inputFormats;
 public Format [] getSupportedOutputFormats(Format input) {
if (input == null) {
return outputFormats;
if (matches(input, inputFormats) != null) {
return new Format[] { outputFormats[0].intersects(input) };
} else {
return new Format[0];
 public Format setInputFormat(Format input) {
inputFormat = input;
 return input;
 public Format setOutputFormat(Format output) {
if (output == null || matches(output, outputFormats) == null)
return null;
RGBFormat incoming = (RGBFormat) output;
Dimension size = incoming.getSize();
int maxDataLength = incoming.getMaxDataLength();
int lineStride = incoming.getLineStride();
float frameRate = incoming.getFrameRate();
int flipped = incoming.getFlipped();
int endian = incoming.getEndian();
if (size == null)
return null;
if (maxDataLength < size.width * size.height * 3)
maxDataLength = size.width * size.height * 3;
if (lineStride < size.width * 3)
lineStride = size.width * 3;
if (flipped != Format.FALSE)
flipped = Format.FALSE;
outputFormat = outputFormats[0].intersects(new RGBFormat(size,
maxDataLength,
null,
frameRate,
Format.NOT_SPECIFIED,
Format.NOT_SPECIFIED,
Format.NOT_SPECIFIED,
Format.NOT_SPECIFIED,
Format.NOT_SPECIFIED,
lineStride,
Format.NOT_SPECIFIED,
Format.NOT_SPECIFIED));
return outputFormat;
public synchronized int process(Buffer inBuffer, Buffer outBuffer) {
 int i=0;
 a++;
 //System.out.println("discard buffer"+inBuffer.isEOM());
 //System.out.println("w n h");
 //System.out.println("w"+size.width+"h"+size.height);
 //System.out.println("format"+inBuffer.getFormat());
 //System.out.println("RGB"+outImage.getRGB(3,3));
 //Graphics og = outImage.getGraphics();
 //og.drawImage(stopImage, 0, 0, size.width, size.height, null);
 vfIn = (RGBFormat) inBuffer.getFormat();
 Dimension size = vfIn.getSize();
 if(inBuffer.isEOM()==false)
 BufferToImage stopBuffer = new BufferToImage((VideoFormat) inBuffer.getFormat());
 Image stopImage = stopBuffer.createImage( inBuffer);
 BufferedImage outImage = new BufferedImage(size.width, size.height, BufferedImage.TYPE_INT_RGB);
 if(a==6)
 PictureButton.but(stopImage);
 System.out.println("stop image called");
 //cut
/*if(a<0)
 for(int rr=0;rr<MAXROWS;rr++)
 for(int cc=0;cc<MAXCOLS;cc++)
 System.out.print(PixelArray[rr][cc]+" ");
 System.out.println("@");
a=0;
 int outputDataLength = ((VideoFormat)outputFormat).getMaxDataLength();
validateByteArraySize(outBuffer, outputDataLength);
outBuffer.setLength(outputDataLength);
outBuffer.setFormat(outputFormat);
outBuffer.setFlags(inBuffer.getFlags());
 byte [] inData = (byte[]) inBuffer.getData();
byte [] outData =(byte[]) outBuffer.getData();
 Object data = inBuffer.getData();
int pixStrideIn = vfIn.getPixelStride();
int lineStrideIn = vfIn.getLineStride();
 imageWidth = (vfIn.getLineStride())/3; //Divide by 3 since each pixel has 3 colours.
 imageHeight = ((vfIn.getMaxDataLength())/3)/imageWidth;
 imageArea = imageWidth*imageHeight;
int r=0,g=0,b = 0; //Red, green and blue values.
 System.arraycopy(inData,0,outData,0,outData.length);
 bwPixels = new int[outputDataLength/3] ;
 p1=new int[outputDataLength/3];int[] p=new int[outputDataLength/3];
 for (int ip = 0; ip < inData.length; ip+=3) {
 int bw = 0;
 r = (int) inData[ip] ;
 g = (int) inData[ip+1] ;
 b = (int) inData[ip+2];
bw = (int) ((r + b + g)/ (double) 3);
 p1[ip/3]=bw;
 return BUFFER_PROCESSED_OK;
 public String getName() {
return "Motion Detection Codec";
public void open() {
public void close() {
public void reset() {
 public Format matches(Format in, Format outs[]) {
 for (int i = 0; i < outs.length; i++) {
 if (in.matches(outs[i]))
 return outs[i];
 return null;
public Object getControl(String controlType) {
System.out.println(controlType);
 return null;
public Object[] getControls() {
return null;
byte[] validateByteArraySize(Buffer buffer,int newSize) {
Object objectArray=buffer.getData();
byte[] typedArray;
if (objectArray instanceof byte[]) { // Has correct type and is not null
typedArray=(byte[])objectArray;
if (typedArray.length >= newSize ) { // Has sufficient capacity
return typedArray;
byte[] tempArray=new byte[newSize]; // Reallocate array
System.arraycopy(typedArray,0,tempArray,0,typedArray.length);
typedArray = tempArray;
} else {
typedArray = new byte[newSize];
buffer.setData(typedArray);
return typedArray;
public static void markObject(int x,int y)
marked=true;
xpos=x; ypos=y;
/* int j =0, m=0,n=0;
int total = p1.length; int col = imageWidth; //int row = imageHeight;
int[][] twodim = new int[total/col][col];
System.out.println("p1 arr"+p1.length+","+twodim.length+"col"+col);
for(j=0;j<total;j++)
twodim[n][m] = p1[j];
System.out.print( twodim[n][m]+" ");
m++;
if( m ==col)
m=0; n++;
System.out.println("@"+n);
System.out.println("m"+m+"n"+n);*/
public int markObject()
//System.out.println("boolean mark called");
mark_flg=1;
return mark_flg;
/*****************************************end of mdetect class*****************************************************/
/*********************************** Image Icon class ****************************************************************/
class PictureButton extends JFrame implements MouseMotionListener,MouseListener{
static Image image;Icon icon2;JButton button2=new JButton("hi"); int[] pixels; Container content;
public PictureButton(Image img ) {
super("PictureButton v1.0");
setSize(200, 200);
setLocation(200, 200);
Icon icon = new ImageIcon(img);
JButton button = new JButton(icon);
 button.addMouseMotionListener(this);
 button.addMouseListener(this);
button.addActionListener(new ActionListener( ) {
public void actionPerformed(ActionEvent ae) {
System.out.println("Urp!");
content = getContentPane( );
content.setLayout(new FlowLayout( ));
content.add(button);
 //content.add(button2);
public static void but(Image im) {
 image=im;
JFrame f = new PictureButton(im );
f.addWindowListener(new WindowAdapter( ) {
public void windowClosing(WindowEvent we) { System.exit(0); }
f.setVisible(true);
public void mouseMoved(MouseEvent e) {
//saySomething("Mouse moved", e);
public void mouseDragged(MouseEvent e) {
saySomething("Mouse dragged", e);
public void mousePressed(MouseEvent e) {
//saySomething("Mouse pressed; # of clicks: "
// + e.getClickCount(), e);
public void mouseReleased(MouseEvent e) {
//saySomething("Mouse released; # of clicks: "
// + e.getClickCount(), e);
public void mouseEntered(MouseEvent e) {
//saySomething("Mouse entered", e);
public void mouseExited(MouseEvent e) {
//saySomething("Mouse exited", e);
public void mouseClicked(MouseEvent e) {
saySomething("Mouse clicked (# of clicks: "
+ e.getClickCount() + ")", e);
void saySomething(String eventDescription, MouseEvent e) {
int w=0;int ind=0;
 System.out.println("The Object is at the point "+"x ,"+e.getX()+ "y" + e.getY());
 int[][][] imagePixels = imageIO.loadImage(image);
 final int MAXROWS = imagePixels.length;
 final int MAXCOLS = imagePixels[0].length;
 int[][] PixelArray = new int[MAXROWS][MAXCOLS];
 pixels=new int[MAXROWS*MAXCOLS];
 int cnt=0;
 int pix=0,pix1=0;
for(int row=0; row<imagePixels.length; row++) {
for(int col=0; col<imagePixels[0].length; col++) {
for(int rgbo=0; rgbo<4; rgbo++) {
 if((cnt<3)&&(rgbo<3))
w++;
 pix=pix+imagePixels[row][col][rgbo];
 cnt++;
 else
 {cnt=0;}
} // for rgbo
pix1 = pix/3;
pix = 0;
 /*if(col<97)
 {pix1=(byte)192;}*/
PixelArray[row][col] = pix1;
 System.out.print(pix1+" ");
} // for col
 System.out.println("@");
} // for row
 System.out.println("pix arr"+PixelArray.length);
 for(int ww=0;ww<MAXROWS;ww++)
 for(int hh=0;hh<MAXCOLS;hh++)
 pixels[ind++]=PixelArray[ww][hh];
 image = createImage (new MemoryImageSource( MAXROWS,MAXCOLS, pixels, 0, MAXROWS));
 System.out.println(" img added");
/********************************* end of Image Icon class**********************************************************/
this program will capture the video n play
if u click on the mark button processor will be stopped
u can click on the image and get the mouse co-ordinates
i have also got the pixel values of the current frame at which u had clicked the mark button..do some manipulation on the pixels to get ur stuff work
hope this will help u in some way
regards
sudha

How to get the source of event?

Hi All,
I have more than 1 hideShowHeaders, and I need to know where the "show" event came from.
I just saw that they have something for LOV Events, I hope they have for the other web beans.
Anyone knows how? Please help. Thanks!

HI,
u can make use of
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Hello,
Anybody knows call which API can reach to get mouse's status, not mouse position and click status I want , but its "Normal select" "Busy" "Working in background" etc status. thanks in advance.
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please help to point out.
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Yup, and I am going to that forums too (LAVA), but I found Gilbert have told us his last concern Clearly.
Try to make everything Automatic

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Dear All,
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It works well with the "edit position" property.
See attached
Attachments:
table.vi ‏12 KB

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You can drag the file name into the application, or use something like PathSnagger
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How to implement it?
Thanks a looooooooooooot for ur help
Best Regards

try this
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
class Testing extends JFrame
public Testing()
    setSize(100,75);
    setLocation(300,200);
    setDefaultCloseOperation(EXIT_ON_CLOSE);
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    getContentPane().add(p);
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      public void mousePressed(MouseEvent me){//match method name
        p.dispatchEvent(me);}});
    p.addMouseListener(new MouseAdapter(){
      public void mousePressed(MouseEvent me){//with this method name
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public static void main(String[] args){new Testing().setVisible(true);}
}

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Hello Adele,
 No, I did not add a breakpoink in my coding, I try to wake up the double click events, but as below sample, I also remove the Case et_CLICK:, could not get the double clikc event either, I don't know why?
Select Case pVal.EventType
 '// every event will open a message box with the event
 '// name and the form UID how sent it
 Case et_CLICK:
 '// Specifies Mouse Up on editable item.
 SBO_Application.MessageBox _
 "An et_CLICK has been sent by a form with the unique ID: " + FormUID
 Case et_DOUBLE_CLICK:
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 '// SAP Business One as double-click.
 SBO_Application.MessageBox _
 "An et_DOUBLE_CLICK has been sent by a form with the unique ID: " + FormUID

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I'm trying to draw a histogram on a arbitrary parameter (just like the "Levels" effect). The draw part is well, but I have a problem with the input layer data (param[0]).
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When I test in AE, I created a layer A, and added some color correction effects to the layer A before added my effect to the layer A. The problem is the input layer my effect read is not the result of previous effects I applied before.
Has anyway to read the latest input data in the arbitrary events ?
Thanks.

Hi shachar, nice to meet you!
In another way, I created a sequence data like this:
typedef struct {
 bool didRender;
 <some histogram data>;
} Histogram;
typedef struct {
 Histogram* histograms;
} my_sequence_data, *my_sequence_dataP, **my_sequence_dataH;
my_sequence_data.histograms is an array with in_data->total_time / in_data->time_step items initialized during the sequence setup.
During the render call, I cached the calculated histogram at this current_time to the sequence->histograms[in_data->current_time / in_data->time_step], set the didRender = true.
In this way, I have another problem with the AE cached image. I disabled a random previous effect on the effect panel, then the AE re-rendered my effect, the histogram changed (good). I enabled the effect again, and nothing change (bad )
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Am I on the right way ?
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Based on my requirement i have extended my controller,but i want to perform some validation like ,,,,
i have table in one region ,in which one column is having a Button (flex field) action with image,
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If not you can use image component with clientListener and serverListener to preform your requirement set clientListener click event and then inside clientListener java script method call the
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I need to implement some control rules on booking conference rooms depending on the creation date and start date.
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- the booking cannot be accepted if the meeting start date is less than 2 hours ahead
at 3:00 PM I can book the conference room for a meeting starting at 5:05PM
but not for a meeting starting at 4:55PM
- the booking cannot be accepted after 5:30PM for a meeting starting the next morning before 10:00AM
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Hi Michel,
how to get the creation date of an event/meeting?When you use the calendar sdk to fetch a meeting there is an Icalendar(http://www.ietf.org/rfc/rfc2445.txt) property called CREATED with the creation time in UTC.
For example:
- the booking cannot be accepted if the meeting start
date is less than 2 hours ahead
at 3:00 PM I can book the conference room for a
meeting starting at 5:05PM
but not for a meeting starting at 4:55PM
You would want to implement these rules with with the sdk? That would implie that users connecting to the calendar server with any other client than the calendar sdk could still book these resources whenever they want.
Or you would want to go an validate all the meetings once they are already created?
Cheers,
Jean-Philippe

I use iPhoto and want to know how to get the 'key photo' i select on my MacBook Pro to be the one that gets used on my iPhone when i sync them. Any ideas? also, i want the events to appear in the order i choose on my MacBook too

I use iPhoto and want to know how to get the 'key photo' i select on my McBook Pro to be the same one that gets used on my iPhone 5s when i sync. i also want the events to appear on the iPhone in the same order i have them on my macbook. any ideas there too?

Killerfinch wrote:
My new yahoo account nestles comfortably in iCloud on the mine iPad.
No, your Yahoo account is not in iCloud (which only handles iCloud mail), it is in Yahoo, and the Yahoo mail account is on your iPad.
But the MacBook Pro will have none of it! I write this question now as I fear that I will be totally demented very soon and unable to formulate my thoughts clearly!
Get the correct settings for your account from Yahoo and set it up manually.
By the way, I also find the "password" issue problematical. It seems Apple want my Apple password rather than my eMail password. All very confusing.
That would depend on what you are trying to do.

How to get the ItemKey for a Workflow triggered by an event in Oracle Apps

Hello,
I have added a custom sub process to the seeded "OM Order Header" workflow. The process sends a notification. There are a few attributes in the body of the message tied to this notification, to which I am trying to assign values to using the syntax:
SetItemAttrText (itemtype, itemkey, attrname, attrvalue).
I have the internal names for the item type and attribute name, but don't know how to get the value for the item key. I understand the item key is supposed to be unique for each item type and is automatically generated by the workflow engine when the work flow fires. Is there a built-in function or some means to get this value?
Regards,
Smita

Have you tried to query WF_ITEMS? -- http://etrm.oracle.com/pls/et1211d9/etrm_pnav.show_object?c_name=WF_ITEMS&c_owner=APPLSYS&c_type=TABLE
bde_wf_item.sql - Runtime Data of a Single Workflow Item [ID 187071.1]
Thanks,
Hussein

How to get the Events

Hi,
when submitting a form is it possible to get the list of events before they are running and is it possible to delete some of this events ?

Here is the link to dowload the Calendar Application Developer's Guide. http://download-west.oracle.com/docs/cd/B25553_01/calendar.1012/b25489.pdf.
From the Guide:
"The current version of the Calendar SDK doesn't fully support the ATTACH property
as stated in RFC 2045. Only file URIs are supported. The SDK must be configured to
support the ATTACH property. This involves setting tmpDirectoryPath in the SDK
section of the Oracle Calendar SDK configuration file. See Chapter 7, "Oracle Calendar
SDK Configuration Settings" for more information about this setting. Temporary file
attachments will be saved in the directory specified in tmpDirectoryPath when an
event is exported.
When an event is imported or stored, the ATTACH property value is file location of
the attachment. The following is an example of the ATTACH property of an event to
be stored:
ATTACH:file:/tmp/my_attachment.txt
When an event is exported or fetched, if the configuration setting tmpDirectoryPath
points to a valid directory, any attachments will be downloaded in subdirectories of
this directory. These subdirectories will be in the following format:
./<UID>-<RECURRENCE_ID>
If tmpDirectoryPath does not point to a valid directory, attachments will not be
downloaded.
The following is an example of the ATTACH property of a fetched event:
ATTACH:file:///c:/20050427T160642Z-45c-a90b-27b4a6d7-Oracle-20050427T040000Z/my_
attachment.txt"

Mouse dragged event with unexpected coordinates

I am dragging the mouse on a half circle from the middle left to the top middle. This results in mouse events with the coordinates form (10,90) ->(100,10)
Letting the mouse go and then dragging it further to the left, the coordinates in the of the event are similar than the starting point of the first mouse drag event.
Can anyone shed some light on this peculiar behavior?

First of, I have to apologize for the example not being as minimalistic as it might be, but on the plus side, I know now why this happens, I just don't know how to work around it.
* To change this license header, choose License Headers in Project Properties.
* To change this template file, choose Tools | Templates
* and open the template in the editor.
package javafxtest;
import java.util.ArrayList;
import javafx.application.Application;
import javafx.beans.property.DoubleProperty;
import javafx.beans.property.SimpleDoubleProperty;
import javafx.event.ActionEvent;
import javafx.event.EventHandler;
import javafx.geometry.Dimension2D;
import javafx.geometry.Point2D;
import javafx.scene.Group;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.Label;
import javafx.scene.input.MouseEvent;
import javafx.scene.layout.StackPane;
import javafx.scene.paint.Color;
import javafx.scene.shape.Circle;
import javafx.scene.shape.Polygon;
import javafx.scene.shape.Rectangle;
import javafx.scene.shape.Shape;
import javafx.scene.transform.Rotate;
import javafx.stage.Stage;
* @author andi
public class HandleRotation extends Application {
 private DoubleProperty currentRotation;
 private ArrayList<Double> angles;
 @Override
 public void start(Stage primaryStage) {
 currentRotation = new SimpleDoubleProperty(this, "currentRotation", 10);
 SteeringWheelGroup background = new SteeringWheelGroup(200);
 background.setManaged(false);
 Group g = new Group(background);
 final Point2D centerPoint = new Point2D(100, 100);
 angles = new ArrayList<>(3);
 angles.add(190.0);
 angles.add(270.0);
 angles.add(350.0);
 double step = (180.0 - 2 * currentRotation.doubleValue()) / (angles.size() - 1);
 int radius = 100;
 final int yTranslation = 15; // might be due to the labels
 Polygon handle = createHandle(centerPoint, radius, yTranslation);
 g.getChildren().add(handle);
 StackPane root = new StackPane();
 Scene scene = new Scene(g, 300, 250);
 primaryStage.setTitle("Handle Rotation!");
 primaryStage.setScene(scene);
 primaryStage.show();
 * Calculate the base point for the label. This is the point on the arc, matching the angle.
 * @param center point of the circle
 * @param radius radius of the circle
 * @param angle in degree in [0,180]
 * @return Point on the circle
 Point2D calculateBasePoint(Point2D center, double radius,
 double angle) {
 float newX = (float) (center.getX() + radius * Math.cos(Math.toRadians(angle)));
 float newY = (float) (center.getY() + radius * Math.sin(Math.toRadians(angle)));
 return new Point2D(newX, newY);
 * Create the polygon that represents the handle
 * @param centerPoint
 * @param radius
 * @return
 private Polygon createHandle(final Point2D centerPoint, int radius, final int yTranslation) {
 double baseAngle = 180;
 Point2D p1 = calculateBasePoint(centerPoint, radius, baseAngle - 5);
 Point2D p2 = calculateBasePoint(centerPoint, radius, baseAngle + 2);
 Point2D p3 = calculateBasePoint(centerPoint, radius*0.65, baseAngle + 2);
 Point2D p4 = calculateBasePoint(centerPoint, radius*0.65, baseAngle - 7);
 double[] points = {p1.getX(), p1.getY(), p2.getX(), p2.getY(), p3.getX(), p3.getY(), p4.getX(), p4.getY()};
 Polygon polygon = new Polygon(points);
// polygon.setOpacity(0);
 polygon.setTranslateY(-yTranslation);
 final Rotate rotationTransform = new Rotate(currentRotation.doubleValue(), centerPoint.getX(), centerPoint.getY());
 polygon.getTransforms().add(rotationTransform);
 polygon.setOnMouseDragged(new EventHandler<MouseEvent>() {
 @Override
 public void handle(MouseEvent event) {
 if (event.getY() < centerPoint.getY()) {
System.out.println("Event: "+event);
 Point2D point = new Point2D((float)event.getX(), (float)event.getY());
 double newAngle = angleBetween2Lines(centerPoint, point);
 if (newAngle < 0) {
 newAngle = (90 + newAngle)+ 90;
System.out.println("Set angle on mouse drag: "+newAngle);
 if (newAngle < 10) {
 newAngle = 10;
 if (newAngle > 170) {
 newAngle = 170;
 currentRotation.set(newAngle);
 polygon.setOnMouseReleased(new EventHandler<MouseEvent>() {
 @Override
 public void handle(MouseEvent event) {
 snapToNearestAngle();
 rotationTransform.setAngle(currentRotation.doubleValue());
 return polygon;
 * Snap to the correct angle. Correct angle is angle belonging to the nearest label.
 void snapToNearestAngle() {
 double currentAngle = currentRotation.doubleValue() + 180;
 double currentMin = 360;
 int minIndex = 0;
System.out.println("Current rotation is "+currentAngle);
 for (int i = 0; i < angles.size(); i++) {
 double angle = angles.get(i);
 double diff = Math.abs(angle - currentAngle);
 if (diff < currentMin) {
 currentMin = diff;
 minIndex = i;
System.out.println("new minDifference at "+i+": "+diff);
 Double destinationAngle = angles.get(minIndex);
System.out.println("DestinationAngle is "+currentAngle+" -> "+(destinationAngle - 180));
 if (destinationAngle < 180 + 10 || destinationAngle > 360 - 10) {
 throw new IllegalStateException("Angle is out of range: "+currentRotation.doubleValue()+" -> "+destinationAngle);
 currentRotation.set(destinationAngle - 180);
 * Calculate the angle between the vector horizontally to the left from the center
 * and the current point.
 * @param center point
 * @param point current point
 * @return angle in degree
 double angleBetween2Lines(Point2D center, Point2D point) {
 double slope2 = calculateSlope(center, point);
 double angle = Math.atan(slope2);
 if (point.getX() > center.getX()) {
 angle += Math.PI/2;
System.out.println("Slope: "+slope2+" angle "+Math.toDegrees(angle));
 return Math.abs(Math.toDegrees(angle));
 * Caluculate the slope of the line defined by two points.
 * The first point is the center of a circle and the second
 * point roughly lies on the circle.
 * @param center point
 * @param point on the circle
 * @return slope of the connecting line.
 double calculateSlope(Point2D center, Point2D point) {
System.out.println("center="+center+",point="+point);
 double absSlope = Math.abs((point.getY() - center.getY()) / (point.getX() - center.getX()));
 if (point.getY() > center.getY()) {
 if (point.getX() > center.getX()) {
 // bottom right
 return -absSlope;
 } else {
 // bottom left
 return absSlope;
 } else {
 if (point.getX() > center.getX()) {
 // top right
 return absSlope;
 } else {
 // top left
 return -absSlope;
 * The main() method is ignored in correctly deployed JavaFX application.
 * main() serves only as fallback in case the application can not be
 * launched through deployment artifacts, e.g., in IDEs with limited FX
 * support. NetBeans ignores main().
 * @param args the command line arguments
 public static void main(String[] args) {
 launch(args);
 private class SteeringWheelGroup extends Group {
 public SteeringWheelGroup(int destinationWidth) {
 int topPadding = 0;
 Rectangle rect = new Rectangle(getImageWidth(), getImageWidth(), Color.RED);
 double scale = destinationWidth / rect.getWidth();
 rect.setScaleX(scale);
 rect.setScaleY(scale);
 Circle circle = new Circle(getImageWidth()/2, getImageWidth()/2, getImageWidth()/2, Color.BLUE);
 circle.setScaleX(scale);
 circle.setScaleY(scale);
 Group rotationGroup = new Group(/*rect,*/ circle);
 rotationGroup.setManaged(false);
 int width = getImageWidth();
 Rectangle clipRectangle = new Rectangle(0, 0, width, width / 2);
 Circle clipCircle = new Circle(width / 2, width / 2, width / 2);
 Shape clip = Shape.intersect(clipRectangle, clipCircle);
 rotationGroup.setClip(clip);
 this.getChildren().add(rotationGroup);
 //double h = calculateHeigthOverHorizon(angle, destinationWidth/2);
 //setTranslateY(-h+topPadding);
 public final int getImageWidth() {
 return 479;
Here is how you can reproduce my effect:
Grab the black handle
Drag the mouse top and right until you approach the angle -90 (have an eye out on the console log)
Let the mouse go: the handle will snap to 90 degree
Grab the handle a second time and move further right
You will see that the angle printed out do not match what you expect.
Let the mouse go, the Handle snaps back to it's original position
As the rotation does not happen around the polygon's center, I have to use a Rotaion effect, which is applied. While I can drag the shape from the rotated location the dragging is always measured from its base position.
So what can I do to work around this?
final Rotate rotationTransform = new Rotate(currentRotation.doubleValue(), centerPoint.getX(), centerPoint.getY());
polygon.getTransforms().add(rotationTransform);
If worse comes to worst, I can use a circular handle covering everything, then I can rotate around its center, but I would like to avoid this.

How to get the mouse drag event ?

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