java-programmer >>Mouse position while drag&drop-operation

Mouse position while drag&drop-operation

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Author

Message

mic

Posted: 2006-12-14 0:41:00

Top

java-programmer, Mouse position while drag&drop-operation Hi swing experts!

I have the following problem:

I want to move a custom Transferable via Drag&Drop from a JTree to a
JPanel.
The transferable should be shown on the JPanel on the position the
mouse is released.

The trouble is, I can't determine the mouse position on the JPanel.
The mouseListener and mouseMotionListener-routines on the JPanel
obviously don't work while in a standard-java-drag&drop operation.
For example: The JPanel doesn't fire a mouseEntered(..)-Event, when the
panel is entered during a drag&drop-operation.

So, without Mouse-Events, how do I get the drop-coordinates relative to
the JPanel?

Any clues?
Thanks in advance! Your help is very appreciated.

Best,
Michael

Andrew Thompson

Posted: 2006-12-14 1:50:00

Top

java-programmer >> Mouse position while drag&drop-operation mic wrote:
> Hi swing experts!

Note that D'n'D is AWT.

> I want to move a custom Transferable via Drag&Drop from a JTree to a
> JPanel.
...
> The trouble is, I can't determine the mouse position on the JPanel.

<url:http://java.sun.com/j2se/1.5.0/docs/api/java/awt/dnd/DragSourceEvent.html#getLocation()>

Andrew T.

mic

Posted: 2006-12-14 4:30:00

Top

java-programmer >> Mouse position while drag&drop-operation Thanks for pointing me to the right direction... got it working.

cheers,
michael

Andrew Thompson schrieb:

> mic wrote:
> > Hi swing experts!
>
> Note that D'n'D is AWT.
>
> > I want to move a custom Transferable via Drag&Drop from a JTree to a
> > JPanel.
> ...
> > The trouble is, I can't determine the mouse position on the JPanel.
>
> <url:http://java.sun.com/j2se/1.5.0/docs/api/java/awt/dnd/DragSourceEvent.html#getLocation()>
>
> Andrew T.

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    to back to it) what is going on.
    
    now, intution says the bottom one is NO SLOWER than the top, because the
    top may incur extra overhead due to the function call stack (for
    Math.floor)... but i'm not sure. when the runtime environment does the
    automatic rounding toward zero, does it basically go through the same
    operations as Math.floor anyhow?
    
    which one would most people here use... and most importantly why?
    
    (note, i may come up with a small test program and try to benchmark the
    two to get a quantitative answer, and i will post when i do.)
    
    thanks again for all the help,
    
    murat
    
    --
    Murat Tasan
    email***@***.com
    email***@***.com
    email***@***.com
    http://genomics.cwru.edu
- 13
  - Connecting J2ME application to Oracle databaseHello,
    
    For my study I have some questions about Java J2ME:
    
    1. Is it possible to develop a J2ME (CLDC/ MIDP) application, which has a
    direct connection to a Oracle database?
    
    2. Is there a way for using JDBC within a J2ME (CLDC/ MIDP) application?
    
    Greetings,
    
    Dennis
- 14
  - javax.comm - SerialPort ProlemHi,
    
    I tried to install the comm-extensions (with Java 1.5) and copied my files:
    win32com.dll -> \myjdk\jre\bin
    javax.comm.properties -> \myjdk\jre\lib
    comm.jar -> \myjdk\jre\lib\ext
    
    I'm using Eclipse.
    Now to my problem:
    
    A piece of my code:
    
    portList = CommPortIdentifier.getPortIdentifiers();
    try {
    portId = CommPortIdentifier.getPortIdentifier( name );
    } catch(Exception e) {System.out.println("error on comportIdentifier");}
    
    After executing the first line portList is empty and 2 lines later a
    NoSuchPortException is thrown -
    it seems that I did something wrong because I don't get any portIdentifiers
    at all ... but after searching for hours in the internet I only found hints
    where to copy the files but nothing more ...
    
    I would be glad if someone could help me!!
    
    btw: I'm using WinXP
    
    Thomas Pototschnig
- 15
  - xp sp2 download problem would someone please explain to me why this routine work
    on clients ranging from windows (including XP), to linux, but don't work in
    my winXP clients that install SP2 ??? the download window don't appears.
    
    OutputStream out = response.getOutputStream();
    response.setContentType("application/octet-stream");
    
    //* response.setHeader("Content-Disposition","attachment;
    filename=\"" +request.getRequestURI()+ "\";");
    
    FileInputStream fis = new FileInputStream(nomeFile);
    
    byte[] buffer = new byte[1024];
    int byteLetti;
    while((byteLetti = fis.read(buffer)) != -1){
    out.write(buffer, 0, byteLetti);
    }
    out.flush();
    out.close();
    fis.close();
    
    thanks!
    
    maz