java-programmer >>[Swing] JScrollPane double MouseMotionListener

[Swing] JScrollPane double MouseMotionListener

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- 1
  - Java Native Interface: "Translate" java call to JNI, how to pass parameters, how to show exceptionHallo,
    
    I am at least one step further, now I need to pass the properties to
    the call and are now sure how:
    
    Remember: The call I want to implement in Delphi is
    java -Xmx256m -cp
    "lib\fop\fop.jar;lib\fop\avalon-framework-4.1.3.jar;lib\fop\JimiProClasses.zip"
    org.apache.fop.apps.Fop -fo "Data.xml" -c "lib\fop\Config.xml" -pdf
    "Data.pdf"
    
    So the parameters that have to be passed are:
    -fo "Data.xml"
    -c "lib\fop\Config.xml"
    -pdf "Data.pdf"
    
    If I do
    JNIEnv.CallStaticVoidMethod(Cls, Mid, ['-fo "Data.xml" -c
    "Config.xml"-pdf "Cover.pdf"']);
    (all parameters in one string) or
    JNIEnv.CallStaticVoidMethod(Cls, Mid, ['-fo "Data.xml"', '-c
    "Config.xml"', '-pdf "Cover.pdf"']);
    (each parameter in a separate string)
    
    ...then JNIEnv.ExceptionOccurred is not NULL after the call, thus some
    exception occured.
    
    The parameter Args in the call CallStaticVoidMethod() is an array of
    const. In CallStaticVoidMethod() the array elements are converted to
    JValues with ArgsToJValues().
    The exemplary C++ code in the doc PDF works with an ObjectArray created
    with NewObjectArray(). I tried that, but CallStaticVoidMethod() won't
    accept an ObjectArray, nor would the similar procedures
    CallStaticVoidMethodA() or CallStaticVoidMethodV().
    
    By the way: My Delphi app runs in a window, its not a console
    application. Can I get the description of the exception with any other
    function, or how would I have to use ExceptionDescribe() in this
    context?
    
    Regards,
    
    Christian Kirchhoff
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    there is a server, a embedded device and a user, which logs onto the
    server, for access to the embedded device. the server now calls the
    embedded device via gsm, to tell the embedded device to connect to the
    internet and callback. after that, the data from the embedded device is
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    problem now is: i want to figure out a better way, how to get the
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    is there some way to exchange the data between this servlets?
- 2
  - Repost:STILL Need help w. HTMLUtils class.
    
    Steve R. Burrus wrote:
    
    > Hi all, this is steve Burrus, and I will admit that it's been a while
    > since I last checked in with this group! I was wondering whatever
    > happened to the "always-perennial" roedy Green, and after scrolling
    > down the list of postings in this group, I found his last post was on
    > 8.1.2004 and it's now 8/09/04.
    > Well anyway, I needed some help with "getting it right" with the
    > HTMLUtils class which is used in quite a few of the various examples
    > in a particular servlet book of mine. I always seem to get a compiler
    > error whenever I try to compile a servlet with this class in it! Can
    > anyone help me please with this problem as I am in anguish over it, I
    > must admit. Incidentally, I put the folder with this class in it into
    > my classpath env. variable, but that didn't seem to help any.
    
    <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
    <html>
    <head>
    <title></title>
    </head>
    <body>
    <br>
    <br>
    Steve R. Burrus wrote:<br>
    <blockquote type="cite" cite="email***@***.com">
    <meta http-equiv="Content-Type" content="text/html;">
    <title></title>
    <big><b><font face="Times New Roman, Times, serif">Hi all, this is steve
    Burrus, and I will admit that it's been a while since I last checked in with
    this group! I was wondering whatever happened to the "always-perennial" roedy
    Green, and after scrolling down the list of postings in this group, I found
    his last post was on 8.1.2004 and it's now 8/09/04.<br>
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    class which is used in quite a few of the various examples in a particular
    servlet book of mine. I always seem to get a compiler error whenever I try
    to compile a servlet with this class in it! Can anyone help me please with
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    the folder with this class in it into my classpath env. variable, but that
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    </font></b></big> </blockquote>
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    2D CD E7 2B
    
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    74 0d 66 82 98 0e 83 ea 4d 66 d3 d1 cc 22 39 9a d2 32 18 d5
    
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    Christian
    http://christian.bongiorno.org
- 4
  - in need of swing performance adviceHi All,
    
    I've hit a point in my app when I first call .validate() when loading a
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    There must be something I can do to get over this and was wondering if
    anyone had any ideas, if you are interested then my App flows like this..
    
    A quite simple frame is initially created and displayed to user, this
    contains a button with 4 buttons, a BIG panel and a menu bar and thats
    it for now. the button bar is on left, menu at top and the Panel taking
    everything else up..
    
    When the user clicks a button, an appropriate panel is then called and
    'loaded into' the big empty space where the panel is. All this is in a
    function called Show() which is as follows...
    
    private void show(Component component) {
    java.awt.GridBagConstraints gridBagConstraints;
    gridBagConstraints = new java.awt.GridBagConstraints();
    gridBagConstraints.fill = java.awt.GridBagConstraints.BOTH;
    gridBagConstraints.anchor = java.awt.GridBagConstraints.NORTHWEST;
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    this.validate();
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    when a button is clicked, depending on the button I call the show
    command like this...
    
    show(new divelog.forms.ProfilePanel());
    
    The panel that gets loaded that I have a problem with containt 3 panels
    in a tabpanel. each one of those has a table, and maybe 10 textfields
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    So not really all that much complexity I dont think, the instantiation
    of the panel doesnt take long, so setting up the listeners I have seems
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    Anyone any ideas ? I was thinking Ok I'll create the instances of the
    panels in a seperate thread, but as I said the creation doesnt really
    take anytime at all.
    
    Thanks in advance.
    
    --------------------
    
    Rgds,
    
    Dave.
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    import java.awt.event.*;
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    e.printStackTrace();
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    private void jbInit() throws Exception {
    }
    //Get Applet information
    public String getAppletInfo() {
    return "Applet Information";
    }
    //Get parameter info
    public String[][] getParameterInfo() {
    return null;
    }
    }
    
    Compile in JBuilder & Jdeveloper
    Web server - Apache from Oracle Application server on OS Redhat RHES.
    
    index.html:
    <HTML>
    <HEAD>
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    <TITLE>Test</TITLE>
    </HEAD>
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    <LI><a href="jborland.html">Apllet JBuilder Borland</a></LI>
    </UL>
    </BODY>
    </HTML>
    
    joracle.html:
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    <HEAD>
    <TITLE>
    Test
    </TITLE>
    </HEAD>
    <BODY>
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    This is sample HTML text.
    </H2>
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    </BODY>
    </HTML>
    
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    <head>
    <meta http-equiv="Content-Type" content="text/html; charset=windows-1251">
    <title>
    HTML Test Page
    </title>
    </head>
    <body>
    Applet2 will appear below in a Java enabled browser.<br>
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    codebase = "."
    code = "a2"
    name = "TestApplet"
    width = "400"
    height = "300"
    hspace = "0"
    vspace = "0"
    align = "middle"
    >
    </applet>
    </body>
    </html>
    
    Launch IE6.0 with java console.
    
    Borland - OK!
    
    Oracle
    
    Error loading class: a1
    java.lang.NoClassDefFoundError
    java.lang.ClassNotFoundException: a1
    at com/ms/vm/loader/URLClassLoader.loadClass
    at com/ms/vm/loader/URLClassLoader.loadClass
    at com/ms/applet/AppletPanel.securedClassLoad
    at com/ms/applet/AppletPanel.processSentEvent
    at com/ms/applet/AppletPanel.processSentEvent
    at com/ms/applet/AppletPanel.run
    at java/lang/Thread.run
    
    WHY???????
    Help me please!!!!
    Best regards.
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    at oracle.jdbc.dbaccess.DBError.check_error(DBError.java:639)
    at oracle.jdbc.ttc7.O3log.receive2nd(O3log.java:529)
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    at net.sourceforge.squirrel_sql.fw.util.TaskExecuter.run(TaskExecuter.java:65)
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    with another company. And it is the other company's server that I am
    unable to successfully connect to.
    
    After going through a number of other tangents (network issues, jdbc
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    file from Oracle again just in case there was some difference from the
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    Once the download completed, I checked the file dates within
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    I did a quick reconfigure of SQuirreL to use the "new" classes12.zip
    and was able to connect to the "problem" DB. Apparently there was
    some sort of update since I had last dl'ed classes12.zip from Oracle.
    
    Uh...same bloody file name, "classes12.zip", different versions. WTF?
    
    I am confused why Oracle would choose to name the zip the same name
    and not increment it when they change it. Grrr! It sure makes it
    difficult to talk about "versions" with their naming convention.
    
    And why doesn't Oracle use the industry standard .jar format and
    naming convention? Their being "rogue" makes this even more confusing
    and frustrating.
    
    Hope you find my travails useful.
    
    Jim
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  - Font dialog objectHello all..
    
    Just wondering if there is a Font dialog object in Java. Looking at the
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    Thanks in Advance...
    IchBin
    __________________________________________________________________________
    
    'The meeting of two personalities is like the contact of two chemical
    substances: if there is any reaction, both are transformed.'
    - Carl Gustav Jung, (1875-1961), psychiatrist and psychologist
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    -tim
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  - NIO! Nein!I recently had the misfortune of trying out a InputStream.available()
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    What was Sun smoking when they came up with SocketChannel and where can
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- 15
  - Problem with TableDear all,
    
    I have a TextField and a TextFieldHandler implement ActionListener and
    a Table.
    
    How can I do the following function?
    
    When the user type 111 in the TextField and press enter, item 111
    information is retrieved from database and will be displayed in the
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    When the user type 222 in the TextField and press enter, item 222
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    table.
    
    ( I know how to detect the value entered in the TextField, but I donno
    how to display the corresponding information with a Table)
    
    Thanks for reply.
    
    Victoria

Author

Message

oliv

Posted: 2007-3-12 0:40:00

Top

java-programmer, [Swing] JScrollPane double MouseMotionListener hi,
I am targetting JRE 1.5.
I have an image displayed within a jscrollPane (with scrollbars).
(in this way : new JScrollPane(new JLabel(new ImageIcon(image))))

I have a MouseMotionListener added to the JScrollPane, so when the
mouse goes over the visible part of the image, I can get the relative
coordinates of the mouse

My question is how to I get at the same time, the coordinate of the
mouse relative to the jscrollpane (the coordinates within the visible
part of the image) and the absolute coordinates (the coordinates of
the mouse relative to the whole image itself).

I tried adding also MouseMotionListener to the JLabel and that gives
me the the coordinates of the mouse relative to the whole image
itself, but then the event is lost for the jscrollpane's listener.

How can I achieve that simply ?

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    target=_blank><IMG
    src="http://www.spammarshall.com/SpamMarshall/images/logo-c.gif" border=0>
    </A></P>
    <HR>
    </DIV><BR><BR>Andy Fish wrote:<BR>
    <BLOCKQUOTE cite=midwJNjb.275$email***@***.com type="cite"><PRE wrap="">Hi,
    
    Just curious to see if anyone has run lots of separate tomcat instances on
    one machine. I currently have 2 which works fine, but I wonder if anyone has
    ever done 10? 50?
    
    I'd like to be able to host a number of separate instances of my app on the
    same box for evaluation purposes and this seems the easiest way of doing it.
    
    They will not be heavily used, so I guess RAM is the biggest factor.
    Unfortunately I am on windows 2000 not *nix, so paging will be an issue.
    
    Any comments would be appreciated
    
    Andy
    
    </PRE></BLOCKQUOTE><BR><FONT face=Arial size=2>Lutus alert!!!! Hey, looks
    like SPAM in a signature that advertises a no SPAM product. Is this
    signature recursive??<BR>-- <BR>Gary</FONT></BLOCKQUOTE></BODY></HTML>
- 8
  - EJB Remote Calls - Serialization Restriction(s)Hi,
    
    I have a simple HelloWorldApplication which uses SSbs.
    
    I pass a Customer Object which has two attribute String name and
    Address address;
    
    I made Address not-serializable
    
    so when i make calls to the SessionBean i get a remote Exception which
    contains the not-serializable exception in WebPShere (as expected)
    
    To my surprise this application ran without any problem in JRun4.0
    
    Why would that be the case and what would the result in other APp
    Servers like WebLogic be?
    
    AFAIK, objects (parameters and Return types) must be serializable for
    all Remote EJB Calls.
    
    Note this applicaiton does not use Local Interfaces..
    
    TIA
    Manglu
- 9
  - 3 way if"Roedy Green" <email***@***.com> wrote:
    
    > If you were to devise a syntax for 3 way if that gave you clauses to
    > execute if the expression were positive, negative or zero what sort of
    > syntax would you come up with? I find this pattern showing up all the
    > time in writing Comparators.
    
    Sure, because it is the output of the comparision functionality.
    
    Trouble is it is too broad, you only need three values, not two ranges
    and a central value.
    
    I put a wrapper interface (named "Sortable") around the comparision
    functionality so that it would emit specifically -1, 0, or +1, as
    manifest constants named LESS_THAN, EQUAL_TO, and GREATER_THAN, on which
    I can then use a simple, symmetric, and clean switch syntax.
    
    Given enumerations, that would presumably be even easier, because then
    you could exhaust the enumeration type to the satisfaction of the
    compiler, and wouldn't have to include a "default" switch case, the only
    wart in my current setup.
    
    xanthian.
    
    --
    Posted via Mailgate.ORG Server - http://www.Mailgate.ORG
- 10
  - OT. Being Ronald L. Grossi. (Brother Ronald has a website).D-word wrote:
    > Smokie Darling (Annie) wrote:
    > > Zippy wrote:
    > > > alt.drugs.hard, alt.support.arthritis, comp.lang.java.programmer,
    > > > alt.sports.football.pro.ne-patriots, alt.security.terrorism.
    > > >
    > > > Can someone please tell me what all these groups have in common
    > that
    > > > they are in such urgent need of salvation? these kind of posts
    > always
    > > > have the same selection of newsgroups. I can only assume that it
    is
    > > the
    > > > same person or group of people doing the posting. But the
    newsgroup
    > > > list still intrigues me.
    > > >
    > > > Answers please - sensible or not, humorous or not, in fact
    > whatever.
    > > Go
    > > > on humour me.
    > > >
    > > > Zippy
    > >
    > > Nothing other than the fact that posting through Google, one can
    only
    > > send to 5 groups at a time, and apparently Yahoo caught on to Ron
    > > Gossi, so now he's being more creative with his name? Trust me,
    > he'll
    > > be posting to almost every other group available on Google through
    > out
    > > the day. That'd be his MO
    >
    >
    >
    > Usenet isn't the only forum he spams, according to google
    > (http://www.groupsrv.com/science/post-784999.html).
    >
    >
    > Ron can (apparently) be reached for comment at: 919-553-7901
    >
    
    Correction, that number could be wrong, it is registered to "Dufresne."
    
    *HOWEVER* This just in. Brother Ronald has a website.
    
    Let's hear it for "Triumphant Ministries" (http://tinyurl.com/c96dw),
    "Internet Evangelist" Ronald L. Grossi, and the power of the one true
    god, Google. Can I get an Amen?
    
    http://www.arkwebshost.com/advice/host/
- 11
  - java/74574: Making NetBeans 4.0 available
    >Number: 74574
    >Category: java
    >Synopsis: Making NetBeans 4.0 available
    >Confidential: no
    >Severity: non-critical
    >Priority: low
    >Responsible: freebsd-java
    >State: open
    >Quarter:
    >Keywords:
    >Date-Required:
    >Class: update
    >Submitter-Id: current-users
    >Arrival-Date: Wed Dec 01 06:00:49 GMT 2004
    >Closed-Date:
    >Last-Modified:
    >Originator: Manfred N. Riem
    >Release: 5.3-RELEASE
    >Organization:
    >Environment:
    FreeBSD lord.home 5.3-RELEASE FreeBSD 5.3-RELEASE #0: Fri Nov 5 04:19:18 UTC 2004 email***@***.com:/usr/obj/usr/src/sys/GENERIC i386
    
    >Description:
    The latest version of the NetBeans IDE is 3.6 and currently the 4.0 releases are in release candidate phase. I have the necessary files for
    the port but I don't know whom to send it to.
    >How-To-Repeat:
    
    >Fix:
    
    >Release-Note:
    >Audit-Trail:
    >Unformatted:
    _______________________________________________
    email***@***.com mailing list
    http://lists.freebsd.org/mailman/listinfo/freebsd-java
    To unsubscribe, send any mail to "email***@***.com"
- 12
  - collaborative QA testingDoes free or cheap code to do this already exist? What is this
    generic sort of product called?
    
    I want to set up a collaborative QA checklist, so that many people can
    be testing at once and reporting what they have tested. Everyone sees
    the incoming results like on election night, so they can see what
    still needs to be done. It also allows for crucial stuff to be tested
    by more than one person, and to record their conflicting results.
    
    It might have columns for different platforms, and some sort of HTML
    script to describe the sections and tests.
    
    The problem is getting emergency coverage testing done at the last
    possible minute to deal with any "insignificant" last minute changes.
    
    --
    Canadian Mind Products, Roedy Green.
    Coaching, problem solving, economical contract programming.
    See http://mindprod.com/jgloss/jgloss.html for The Java Glossary.
- 13
  - Somone got a 4096x4096 pixel screen at sunWell at least it looks like that if you try to look at this new, quite
    helpful "poster-map" from sun:
    
    http://java.sun.com/developer/onlineTraining/new2java/javamap/index.html
    
    I had to go to full-screen mode in my browser, otherwise the controls at
    the bottom wouldn't appear and I couldn't see more than 5% of the poster
    and navigate around.
    
    It's also downloadable as PDF here
    http://java.sun.com/developer/onlineTraining/new2java/javamap/Java_Technolo
    gy_Concept_Map.pdf
    
    CU
    
    Ren?
    --
    -------------------- http://NewsReader.Com/ --------------------
    Usenet Newsgroup Service $9.95/Month 30GB
- 14
  - W32.Swen.A@mm goes ballistic!"Tim Tyler" <email***@***.com> wrote
    
    > It fills the mailboxes of users with huge numbers of 140K attachments -
    > making email practically unusable.
    
    Well, no, it just takes perseverance. Being careful not to junk the
    five real messages in 1995 others is a bit tedious, I'll grant from
    experience.
    
    > Non-Windows users - and the rest of the internet - are targetted
    > as a result of Microsoft's security problem - as mindless zombie
    > Windows boxes swarm to spread the virus.
    
    Indeed; in 30 hours so far, I've removed roughly 3500 emails either
    containing the virus or saying they were forwarded with the virus
    removed. This to my Unix ISP account, where mailx() is my friend and
    companion for weeding through the end results of Microsoft's sloppy
    coding practices.
    
    Too bad California's refusal to allow the M$ denial of "fitness for
    merchantability" cannot be reflected world-wide; a class action lawsuit
    for damages would redistribute all of M$'s wealth and capital equipment
    to the Internet as a whole.
    
    Meanwhile, 200,000,000+ flawed email clients are trying to find my email
    box with their virus copies.
    
    Sigh; it is going to be a long next few days.
    
    xanthian.
    
    --
    Posted via Mailgate.ORG Server - http://www.Mailgate.ORG
- 15
  - Comparables and GenericsHow do I express "A Comparable that can be compared to itself" in generics?
    
    I have a method that takes as parameter an array of Comparables.
    Whilst trying to "modernize" this code, I can no longer write simply:
    
    public void myMethod(Comparable[] primaryKeyValues)
    
    but need to add "generic info" to Comparable.
    The only requirement I have is that the objects should be able to run a
    compareTo() on an instance of their own classes.
    
    --
    Josef Garvi
    
    "Reversing desertification through drought tolerant trees"
    http://www.eden-foundation.org/
    
    new income - better environment - more food - less poverty