tag:old.nabble.com,2006:forum-1281Nabble - Gnome - Java Bindings2009-11-30T21:20:50ZGnome - Java Bindings home is <a href="http://java-gnome.sf.net" target="_top" rel="nofollow">here</a>.tag:old.nabble.com,2006:post-26586824SVG loading2009-11-30T21:20:50Z2009-11-30T21:20:50ZAndrew CowieSome time ago I did up the beginnings of coverage of librsvg. It's the
<br>GNOME library for loading SVG image files, and you use it to draw onto a
<br>Cairo surface.
<br><br>I did a quick review of the branch this morning. On the one hand it's
<br>fine, there's even the beginnings of a fun example, but I still have a
<br>number of unresolved questions:
<br><br> - is it actually necessary to tell people to call Rsvg.init()?
<br><br> - in the ValidateVectorIllustrations.testHandleMethods() test, I tried
<br>putting in a cr.moveTo() before drawing the SVG onto the Context, but it
<br>didn't seem to have any effect. That's Weird™
<br><br> - how best to test this, actually? Perhaps load an image with this
<br>code, and load an .svg image via gdk-pixbuf, and compare the two? Of
<br>course, gdk-pixbuf uses librsvg, so that would be a good exercise of our
<br>code somewhat isolated.
<br><br> - Handle's write() isn't finished; it and close() need testing once we
<br>have a way to compare loaded images.
<br><br>So. Obviously it's not ready for merging, but we might be able to clean
<br>it up well in time for 4.0.15.
<br><br>My branch is at 'hackers/andrew/librsvg' if you want to have a go.
<br>bzr://research.operationaldynamics.com/bzr/java-gnome/hackers/andrew/librsvg/
<br><br>Meanwhile, I think that was the last open item for considering. There's
<br>a tentative NEWS entry for 4.0.14 up (that's on the 'website' branch,
<br>gets merged to 'mainline' just before a release).
<br><a href="http://java-gnome.sourceforge.net/4.0/NEWS.html" target="_top" rel="nofollow">http://java-gnome.sourceforge.net/4.0/NEWS.html</a><br><br>AfC
<br>Sydney
<br><br><br>--
<br>Andrew Frederick Cowie
<br><br>Operational Dynamics is an operations and engineering consultancy
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<br>> As you've probably heard by now, looks like JDK 7 will be giving us
<br>> closures/lambdas after all (as announced yesterday at Devoxx):
<br><br>To be honest, I don't follow the politics of Java 1.7 development that
<br>closely; but that's interesting to hear.
<br><br>Speaking personally, I've never really missed closures as a language
<br>concept in Java; proper function/method pointers would have been wizard
<br>cool for us {10,4} years ago when we engineered java-gnome, but we don't
<br>have them in Java, so {shrug} we don't.
<br><br>And meanwhile the technique of implementing an interface and using that
<br>in a callback (especially doing so via an anonymous inner class) has
<br>been good enough. Modern IDE support means that the code appears click
<br>swish bang! which makes it even more of a non-issue :)
<br><br>...
<br><br>> I would guess there would be no way for the compiler to figure out in
<br>> this case whether it is a KeyPressEvent or KeyReleaseEvent, making JDK
<br>> 7 closures
<br>> potentially unusable with Java-GNOME.
<br><br>Perhaps!
<br><br>> Example:
<br><br>>
<br>I've never written a callback that short, so I'm not sure I'd miss being
<br>able to use closures.
<br><br>That said, surely they've got some casting mechanism? ie, taking your
<br>example and having done zero research about it, surely you can put a
<br>cast in to tell the closure which overload of a method you are actually
<br>trying to call?
<br><br><br>> Maybe there will be a need for actual event-specific connect methods?
<br><br>Perhaps. I rather like overloaded methods. I think they look good in
<br>Java, our implementation has beautiful completion and type safety
<br>properties, and it ties somewhat nicely with the underlying
<br>g_signal_connect() API [though that is voodoo at the best of times]
<br><br>++
<br><br>Anyway, very interesting design question you've raised. We had similar
<br>conversations when generics first came long, and enums too. Both turned
<br>out to be not that interesting/helpful to us, but it still took
<br>investigation to work that out.
<br><br>It will be good to think about closures it over the coming years as Java
<br>1.7 gets closer to being actually available out in the wild.
<br><br>AfC
<br>Sydney
<br><br><br><br>> like this in Swing:
<br>>
<br>P.S. "the way that Swing does it" doesn't count for all that much. Most
<br>of us have a well-earned and now reflexive hatred for their API. Making
<br>java-gnome appropriate Java is important. Solving design questions
<br>specifically in order to end up with the same thing that {AWT, Swing,
<br>SWT, etc} did is not.
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</div><div><span class="Apple-style-span" style="font-family: lucida, arial, sans-serif; font-size: 12px; border-collapse: collapse; -webkit-border-horizontal-spacing: 2px; -webkit-border-vertical-spacing: 2px; "><pre style="font-family: monaco, courier, 'courier new'; font-size: 12px; clear: both; overflow-x: auto; overflow-y: auto; background-color: rgb(239, 239, 239); width: 700px; padding-bottom: 1.5em; ">
button.addActionListener(
new ActionListener() {
public void actionPerformed(ActionEvent e) {
System.out.println("Hi!"); } } );</pre></span></div><div>we could have a much more concise:</div><div><br></div><div><span class="Apple-style-span" style="font-family: lucida, arial, sans-serif; font-size: 12px; border-collapse: collapse; -webkit-border-horizontal-spacing: 2px; -webkit-border-vertical-spacing: 2px; "><pre style="font-family: monaco, courier, 'courier new'; font-size: 12px; clear: both; overflow-x: auto; overflow-y: auto; background-color: rgb(239, 239, 239); width: 700px; padding-bottom: 1.5em; ">
button.addActionListener(#(ActionEvent e) System.out.println("Hi!));</pre></span></div><div>As you can see, the new closures are designed to be backwards compatible, i.e. able to be used in method that expect an interface with just one method,</div>
<div>which makes them usable with existing APIs.</div><div><br></div><div>I am not sure however if this would work so well with the standard event APIs in Java-GNOME. Let's look at these two examples:</div><div><br></div>
<div><div><span class="Apple-tab-span" style="white-space:pre"><i> </i></span><i>connect(new Widget.KeyPressEvent() {</i></div><div><span class="Apple-tab-span" style="white-space:pre"><i> </i></span><i>public boolean onKeyPressEvent(Widget source, EventKey event) {</i></div>
<div><span class="Apple-tab-span" style="white-space:pre"><i> </i></span><i>return false;</i></div><div><span class="Apple-tab-span" style="white-space:pre"><i> </i></span><i>}</i></div><div><span class="Apple-tab-span" style="white-space:pre"><i> </i></span><i>});</i></div>
<div><i> </i></div><div><i> connect(new Widget.KeyReleaseEvent() {</i></div><div><span class="Apple-tab-span" style="white-space:pre"><i> </i></span><i>public boolean onKeyReleaseEvent(Widget source, EventKey event) {</i></div>
<div><span class="Apple-tab-span" style="white-space:pre"><i> </i></span><i>return false;</i></div><div><span class="Apple-tab-span" style="white-space:pre"><i> </i></span><i>}</i></div><div><span class="Apple-tab-span" style="white-space:pre"><i> </i></span><i>});</i></div>
</div><div><br></div><div>With the new closure syntax both calls would look the same:</div><div><br></div><div><i>connect(#(Widget source, EventKey event) return false);</i></div><div><br></div><div>I would guess there would be no way for the compiler to figure out in this case whether it is a KeyPressEvent or KeyReleaseEvent, making JDK 7 closures</div>
<div>potentially unusable with Java-GNOME. Maybe there will be a need for actual event-specific connect methods?</div><div><br></div><div>Example:</div><div><br></div><div><i>connectKeyPressEvent(#(Widget source, EventKey event) return false);</i></div>
<div><i>connectKeyReleaseEvent(<i>#(Widget source, EventKey event) return false);</i></i></div><div><i><span class="Apple-style-span" style="font-style: normal; "><i><br></i></span></i></div><div>Jacek</div>
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<br><a href="https://lists.sourceforge.net/lists/listinfo/java-gnome-hackers" target="_top" rel="nofollow">https://lists.sourceforge.net/lists/listinfo/java-gnome-hackers</a><br><p>From forum: <a href="http://old.nabble.com/Gnome---Java-Binding---Dev-f1289.html" embed="fixTarget[1289]" target="_top" >Gnome - Java Binding - Dev</a></p>tag:old.nabble.com,2006:post-26426902Re: [Java-gnome-developer] (Hacked) version of 4.0.13 in Maven repo2009-11-19T05:38:42Z2009-11-19T05:38:42ZJacekAndrew, I was thinking that the easiest solution to this would be to allow overriding the default .so prefix (i.e. "libgtkjni-") with a different one via a command line property, e.g.<div><br></div><div>-DgnomePrefix=java-gnome-lib</div>
<div><br></div><div>or something along those lines. That way we could override the default "libgtkjni" during development (in Maven or whatever else) and let it fallback to the regular standard way</div><div>when the app is deployed on a distro.</div>
<div><br></div><div>I still like the approach of the .so embedded directly in the JAR, but if you're strongly opposed to it I won't push it any further.</div><div><br></div><div>Cheers,</div><div>Jacek<br><br><div class="gmail_quote">
On Wed, Nov 18, 2009 at 6:55 PM, Jacek Furmankiewicz <span dir="ltr"><<a href="http://old.nabble.com/user/SendEmail.jtp?type=post&post=26426902&i=0" target="_top" rel="nofollow">jacek99@...</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
I understand your point of view, but Maven and Ant (regardless of how you feel about them) are very typical<br>setups for any regular Java developer...the type of folks we would like to see more exposed to Java-GNOME<br>and interested in using it for developing apps.<br>
<br>I think we should maybe differentiate though between development time usage (Maven in my case) and deployment on distros (native packaging system).<br>It would be great to use Maven for developing JG apps (the whole setup makes it so easy)...actually getting them deployed is a<br>
different issue altogether and could alleviate a lot of your security concerns.<br><br>I will continue this on the hackers list, as per your suggestion.<br><br>Cheers,<br><font color="#888888">Jacek<br><br><br><br><br>
</font></blockquote></div><br></div>
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<br>I think we should maybe differentiate though between development time usage (Maven in my case) and deployment on distros (native packaging system).<br>It would be great to use Maven for developing JG apps (the whole setup makes it so easy)...actually getting them deployed is a<br>
different issue altogether and could alleviate a lot of your security concerns.<br><br>I will continue this on the hackers list, as per your suggestion.<br><br>Cheers,<br>Jacek<br><br><br><br><br>
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<br><a href="https://lists.sourceforge.net/lists/listinfo/java-gnome-developer" target="_top" rel="nofollow">https://lists.sourceforge.net/lists/listinfo/java-gnome-developer</a><br><p>From forum: <a href="http://old.nabble.com/Gnome---Java-Binding---General-f1288.html" embed="fixTarget[1288]" target="_top" >Gnome - Java Binding - General</a></p>tag:old.nabble.com,2006:post-26418063Re: [Java-gnome-developer] (Hacked) version of 4.0.13 in Maven repo2009-11-18T15:55:49Z2009-11-18T15:55:49ZJacekI understand your point of view, but Maven and Ant (regardless of how you feel about them) are very typical<br>setups for any regular Java developer...the type of folks we would like to see more exposed to Java-GNOME<br>and interested in using it for developing apps.<br>
<br>I think we should maybe differentiate though between development time usage (Maven in my case) and deployment on distros (native packaging system).<br>It would be great to use Maven for developing JG apps (the whole setup makes it so easy)...actually getting them deployed is a<br>
different issue altogether and could alleviate a lot of your security concerns.<br><br>I will continue this on the hackers list, as per your suggestion.<br><br>Cheers,<br>Jacek<br><br><br><br><br>
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<br>something installed on a system we build packages for it and depend on
<br>those. So personally, I have no use for Maven because it is out-of-band
<br>of the system management infrastructure.
<br><br>++
<br><br>Then there's a second issue, which is _executing_ Java programs, and
<br>Maven [nor Ivy, and don't even mention Ant] doesn't help with setting up
<br>the correct linking to run a Java program. This problem is much bigger
<br>than java-gnome; in fact, it's a horrid weakness in Java period.
<br><br>I've actually been giving talks about this at conferences for years; ie
<br><a href="http://www.operationaldynamics.com/reference/talks/Equivalence/Equivalence_Presentation.html" target="_top" rel="nofollow">http://www.operationaldynamics.com/reference/talks/Equivalence/Equivalence_Presentation.html</a><br>(no you don't have to read that) and why I started with Equivalence. The
<br>idea was sound, but admittedly [and I'm quite embarrassed about this] it
<br>never made it past the bloated prototype that presently lives in it's
<br>fifth project and sixth projects, java-gnome & slashtime. But frankly,
<br>the configure problem prefacing the build is not enough; its still no
<br>help running programs.
<br><br>Five years later I actually have some radically new ideas about this,
<br>largely to do with not using .jars any more at all and instead using the
<br>native linking infrastructure to handle transitive dependencies, but
<br>that's a still just a prototype too.
<br><br>++
<br><br>My principle and only concern for java-gnome is consistency of developer
<br>experience. I am *constantly* on the case of distros encouraging them
<br>to _not_ do something different that the others when it comes to
<br>packaging java-gnome. If they do, then someone trying to develop — let
<br>alone ship & package — their own work using java-gnome will be an
<br>inconsistent nightmare.
<br><br>Back to Maven, it is widely used in some places, making it [much to my
<br>chagrin] essentially a distro too. I'd be perfectly happy to ignore it.
<br>If people are going to insist on using it, though, then I'm certainly
<br>willing to listen to see what we can do to make sure that the experience
<br>if using Maven is comparable to depending on java-gnome properly from a
<br>distro package [or building it from source yourself, of course].
<br><br>But not at the cost of corrupting the clean & integrated experience we
<br>presently have for java-gnome "when installed on system" and "when built
<br>in-place".
<br><br>I was discussing this with Kenneth Prugh a few days ago, and he recalled
<br>the trouble we went to [and why] to get the .so loading the way it is
<br>now (there's was a thread on java-gnome-hackers about this at the time).
<br>We put a lot of effort in to make that work well, and tested the hell
<br>out of it. So it's not something I'm interested in screwing with.
<br><br>++
<br><br>My aesthetic & technical sense is that burying the .so in the .jar is
<br>not the right answer, but if we're going to address this it's an
<br>engineering issue that we need to get right for all distros, not just
<br>Maven.
<br><br>++
<br><br>There is a third issue, Maven is a disaster for the security of the
<br>ecosystem.
<br><br>Distros build their own binaries for a reason. I am not a supporter of
<br>upstreams releasing binaries, and I am even less enthusiastic about the
<br>idea of people using some Maven repo with some copy of java-gnome in it
<br>which we have no idea what was done to it, have no idea who made it, and
<br>have no idea if anyone is actively maintained it. I for one flat out
<br>refuse to run any program that sources binaries from the anonymous
<br>public Maven repositories. I have no idea, none at all, what code is in
<br>those binaries. And neither does anyone else. It's a *huge* security
<br>threat. The fact that many people use them doesn't change a thing.
<br><br>++
<br><br>Finally, I would note that consistent experience is not just for people
<br>developing with the library; ensuring sane and consistent packaging is
<br>really important so that the maintainers of the library have a hope in
<br>hell of helping people who come to us with bugs.
<br><br>++
<br><br>> I am not too happy about having to patch the code to get this to work
<br>> and I have a gut feeling Andrew likes it even less...any alternate
<br>> suggestions would be therefore welcome.
<br><br><br>Engineering the library & packaging it for distros is something we need
<br>to co-ordinate as a community, so if you want to pursue this please
<br>start a thread on java-gnome-hackers and leave this list for discussing
<br>how best to use GTK to develop rich user interfaces for GNOME desktops.
<br><br>/me goes back to writing code.
<br><br>AfC
<br>Sydney
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<br>Embedding the .so in the jar seemed the best idea (that's how SWT does it), but requires the unfortunate patch. I tried a lot of different Maven tricks, but the hardcoded requirement of a particular file name in a particular folder was always the deal breaker....<br>
<br>I am not too happy about having to patch the code to get this to work and I have a gut feeling Andrew likes it even less...any alternate suggestions would be therefore welcome.<br><br><div class="gmail_quote">On Sun, Nov 15, 2009 at 6:36 AM, Stefan Schweizer <span dir="ltr"><<a href="http://old.nabble.com/user/SendEmail.jtp?type=post&post=26385565&i=0" target="_top" rel="nofollow">steve.schweizer@...</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><div class="im">On Fri, 2009-11-13 at 12:37 -0500, Jacek Furmankiewicz wrote:<br>
> I added the dependency on the utility mentioned in this entry and<br>
> modified loadNativeCode() to attempt loading the .so directly from<br>
> the jar's META-INF/lib (which is how I deploy it in the Maven repo).<br>
<br>
</div>Have you tried declaring the libgtkjni.so as separate artifact with type<br>
'so'? I think something like this could work:<br>
<div class="im"><br>
<dependency><br>
<groupId>org.gnome</groupId><br>
</div> <artifactId>libgtkjni</artifactId><br>
<div class="im"> <version>4.0.13</version><br>
</div> <type>so</type><br>
</dependency><br>
<br>
<br>
Stefan<br>
<br>
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<br>From: Leonardo <<a href="http://old.nabble.com/user/SendEmail.jtp?type=post&post=26364745&i=0" target="_top" rel="nofollow">sombriks@...</a>>
<br>Date: 2009/10/23
<br>Subject: Re: [java-gnome-hackers] Considering Trove
<br>To: Andrew Cowie <<a href="http://old.nabble.com/user/SendEmail.jtp?type=post&post=26364745&i=1" target="_top" rel="nofollow">andrew@...</a>>
<br><br><br>No Andrew,
<br><br>Avoid to add another dependency,
<br><br>See, java gnome is somewhat stable for some years in the java side,
<br>just adding dependencies in the gtk land.
<br><br>You will have a finite ammount of widgets, i don't believe that one
<br>could do some nasty and stupid application able to blow the memory
<br>just with buttons, :P
<br><br>if use primitives for keys still a good idea after fine tests don't
<br>add it as dependency, but extract it directly for java-gnome, and only
<br>that class.
<br><br>belive me when i say that add another jar is a lot bad.
<br><br>2009/10/23 Andrew Cowie <<a href="http://old.nabble.com/user/SendEmail.jtp?type=post&post=26364745&i=2" target="_top" rel="nofollow">andrew@...</a>>:
<div class='shrinkable-quote'><br>> I have for some time been very carefully watching the knownProxies
<br>> HashMap in [org.freedesktop.bindings] Plumbing.
<br>>
<br>> This is the heart of java-gnome, mapping between our strong Java object
<br>> Proxy instances, and instantiated GObjects on the native side. Every
<br>> object [Widget, etc] that is created is stored there, in a <long, Proxy>
<br>> map.
<br>>
<br>> Now, of course, Java's general utility collections require boxing of
<br>> keys which means every addition and every query into that table creates
<br>> a Long object wrapping the long [pointer address] as key. Lot of
<br>> allocations for nothing, really, not to mention all the Map.Entry
<br>> objects that get created.
<br>>
<br>> We have had memory pressure there before (which is why we split Proxy
<br>> into Proxy & Pointer, for example). And while it's not the largest
<br>> hotspot we have right now, essentially *every single code path* in
<br>> java-gnome goes through this table.
<br>>
<br>> As a result I have long speculated that we should replace the
<br>> [java.util] HashMap with something a bit smarter, preferably something
<br>> that takes long primitives as keys, not Long objects as keys.
<br>>
<br>> ++
<br>>
<br>> One possibility is the Trove project, a promising set of collections
<br>> that use different algorithms to the [java.util] ones, and which offer
<br>> sets and maps with native keys and/or values.
<br>> <a href="http://trove4j.sourceforge.net/" target="_top" rel="nofollow">http://trove4j.sourceforge.net/</a><br>>
<br>> I did some experimentation and came up with a branch that uses their
<br>> TLongObjectHashMap for the knownProxies map. I uploaded it to
<br>> 'hackers/andrew/trove-external' so you can have a play if you're
<br>> interested. It will configure and build if you're on Ubuntu Karmic.
<br>> bzr://research.operationaldynamics.com/bzr/java-gnome/hackers/andrew/trove-external/
<br>>
<br>> Works fine; I'm still trying to figure out if it's an improvement [or
<br>> degradation] profiling wise (we need some better tools for this sort of
<br>> thing); doing compartive studies of GUI application performance is
<br>> notoriously hard, of course.
<br>>
<br>> ++
<br>>
<br>> Anyway, there is a bigger question: should we use this, and if we do,
<br>> should we incur the cost of an external dependency?
<br>>
<br>> This is a non-trivial question. Not only would it mean "java-gnome build
<br>> depends on trove4j", but of course *also* would mean requiring people to
<br>> express the location of the trove jar when trying to run a program built
<br>> with java-gnome; ie just to run a demo program I had to go from
<br>>
<br>> java -classpath /home/andrew/workspace/java-gnome/tmp/gtk-4.0.jar Experiment
<br>>
<br>> to
<br>>
<br>> java -classpath /usr/share/java/trove-2.0.4.jar:/home/andrew/workspace/java-gnome/tmp/gtk-4.0.jar Experiment
<br>>
<br>> {sigh}
<br>>
<br>> [Java's design is so desperately lacking in this regard it's not even
<br>> funny; doing something about it is on my list of itches, but that's not
<br>> something any of us are going to fix overnight]
<br>>
<br>> There is an alternative, and that would be to import the necessary
<br>> [gnu.trove] classes (only) into java-gnome, placing it say in
<br>> lib/dependencies/. I'm *not*a huge fan of this idea; I've spent enough
<br>> time as a Gentoo Java person to know how much effort we usually have to
<br>> spend ripping out embedded junits, jaxens, etc and how horrible static
<br>> linking is, etc.
<br>>
<br>> Indeed, it's time Java people stopped being afraid of depending on each
<br>> other's code, so perhaps I should just bite the bullet, say "too bad"
<br>> and tell people that we now depend on this [or whichever] library. But
<br>> given that it is essentially just one single piece of Trove that we
<br>> would be depending on, it is almost tempting to just embed it in our
<br>> code base.
<br>>
<br>> ++
<br>>
<br>> Anyway, I'd welcome some discussion on all this, both on the topic of
<br>> the suitability of Trove's [gnu.trove] TLongObjectHashMap as a
<br>> replacement for Sun's [java.util] HashMap, and on the question of other
<br>> Java libraries as dependencies.
<br>>
<br>> I'd like to thank Rob Eden, the current Trove maintainer, for his
<br>> guidance and encouragement.
<br>>
<br>> AfC
<br>> Sydney
<br>>
<br>>
<br>> --
<br>> Andrew Frederick Cowie
<br>>
<br>> Operational Dynamics is an operations and engineering consultancy
<br>> focusing on IT strategy, organizational architecture, systems
<br>> review, and effective procedures for change management: enabling
<br>> successful deployment of mission critical information technology in
<br>> enterprises, worldwide.
<br>>
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<br>> Sydney New York Toronto London
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<br>> I added the dependency on the utility mentioned in this entry and
<br>> modified loadNativeCode() to attempt loading the .so directly from
<br>> the jar's META-INF/lib (which is how I deploy it in the Maven repo).
<br><br>Have you tried declaring the libgtkjni.so as separate artifact with type
<br>'so'? I think something like this could work:
<br><br><dependency>
<br> <groupId>org.gnome</groupId>
<br> <artifactId>libgtkjni</artifactId>
<br> <version>4.0.13</version>
<br> <type>so</type>
<br></dependency>
<br><br><br> Stefan
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<br><a href="http://old.nabble.com/user/SendEmail.jtp?type=post&post=26358337&i=0" target="_top" rel="nofollow">java-gnome-developer@...</a>
<br><a href="https://lists.sourceforge.net/lists/listinfo/java-gnome-developer" target="_top" rel="nofollow">https://lists.sourceforge.net/lists/listinfo/java-gnome-developer</a><br><p>From forum: <a href="http://old.nabble.com/Gnome---Java-Binding---General-f1288.html" embed="fixTarget[1288]" target="_top" >Gnome - Java Binding - General</a></p>tag:old.nabble.com,2006:post-26340790(Hacked) version of 4.0.13 in Maven repo2009-11-13T09:37:18Z2009-11-13T09:37:18ZJacekI wanted to try to deploy Java-GNOME 4.0.13 in a Maven repo, so that it could be easily used in Maven-based projects.<div><br></div><div>It turned out to be far more complicated than I thought, due to the native library issues.</div>
<div>In particular, the way Plumbing.loadNativeCode() works on startup.</div><div>It works well when Java-GNOME is installed a system lib, but not well when it's a Maven lib in a local Maven repository.</div><div><br>
</div><div>I found this interesting blog entry on how to Mavenize JARs with embedded JNI libraries in them:</div><div><a href="http://docs.codehaus.org/display/MAVENUSER/Projects+With+JNI" target="_top" rel="nofollow">http://docs.codehaus.org/display/MAVENUSER/Projects+With+JNI</a></div>
<div><br></div><div>I added the dependency on the utility mentioned in this entry and modified loadNativeCode() to attempt loading the .so </div><div>directly from the jar's META-INF/lib (which is how I deploy it in the Maven repo).</div>
<div><br></div><div><div> //attempt to load from JAR</div><div> try {</div><div> <span class="Apple-tab-span" style="white-space:pre"> </span>NativeLoader.loadLibrary("gtkjni-" + getVersion());</div>
<div> <span class="Apple-tab-span" style="white-space:pre"> </span>return;</div><div> } catch (Throwable ex) {</div><div> <span class="Apple-tab-span" style="white-space:pre"> </span>System.out.println("Failed to load from JAR: " + ex.getMessage());</div>
<div> <span class="Apple-tab-span" style="white-space:pre"> </span>//ignore</div><div> }</div><div><br></div><div>It works perfectly, but it is unfortunately a fork of the current logic.</div><div>However, this makes it very easy to use in maven projects, just add this to your pom.xml:</div>
<div><br></div><div>My Maven repo:</div><div><br></div><div><div><repositories> </div><div> <repository> </div><div> <id>javabuilders</id> </div><div> <url><a href="http://javabuilders.googlecode.com/svn/repo" target="_top" rel="nofollow">http://javabuilders.googlecode.com/svn/repo</a></url> </div>
<div> </repository> </div><div></repositories></div><div><br></div><div>The Java-GNOME dependency:</div><div><br></div><div><div> <dependencies></div><div> <dependency></div><div> <groupId>org.gnome</groupId></div>
<div> <artifactId>java-gnome-linux-x86</artifactId></div><div> <version>4.0.13</version></div><div> </dependency></div><div> </dependencies></div><div><br></div><div>That's all. Now you can just create Java-GNOME on Linux x86 apps and since the .so is embedded directly in the JAR itself it loads transparently.</div>
<div><br></div><div>The Maven project I use to deploy it is in my github repo:</div><div><a href="http://github.com/jacek99/java-gnome-maven" target="_top" rel="nofollow">http://github.com/jacek99/java-gnome-maven</a></div><div><br></div><div>Obviously, this is an experiment, but it seems to work very well and makes it easy to create Java-GNOME apps by removing the complications</div>
<div>related to the native shared library. Theoretically, we could even embed copies of it for all platforms (sort of a fat binary) and then intelligently</div><div>load the one we need based on the current platform.</div>
<div><br></div><div>I look forward to any feedback from the community: love it, hate it, etc.</div><div><br></div><div>Cheers,</div><div>Jacek</div><div><br></div><div><br></div></div></div></div>
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<br><a href="https://lists.sourceforge.net/lists/listinfo/java-gnome-developer" target="_top" rel="nofollow">https://lists.sourceforge.net/lists/listinfo/java-gnome-developer</a><br><p>From forum: <a href="http://old.nabble.com/Gnome---Java-Binding---General-f1288.html" embed="fixTarget[1288]" target="_top" >Gnome - Java Binding - General</a></p>tag:old.nabble.com,2006:post-26329938Superscripts2009-11-12T17:54:13Z2009-11-12T17:54:13ZAndrew CowieHave you ever written something where you put a footnote immediately
<br>after an exponent?
<br><br>I've got 6 × 10²⁴ in a document (note the use of U+2074 for the '⁴'
<br>character).
<br><br>Would you ever have a case where after the ⁴ there was a superscripted
<br>footnote, say 1 or † ?
<br><br>The question arises because, for exponents, one can use the unicode
<br>superscript numerals to good effect, whereas for the general
<br>superscripted footnote you can't get away with it (dagger being a good
<br>example why) and need to manually use a smaller font & set a rise, etc
<br><br>Doing this manually with java-gnome isn't a problem; when drawing with
<br>Pango you use a SizeAttribute and a RiseAttribute and you're on your
<br>way.
<br><a href="http://java-gnome.sourceforge.net/4.0/doc/api/org/gnome/pango/SizeAttribute.html" target="_top" rel="nofollow">http://java-gnome.sourceforge.net/4.0/doc/api/org/gnome/pango/SizeAttribute.html</a><br><a href="http://java-gnome.sourceforge.net/4.0/doc/api/org/gnome/pango/RiseAttribute.html" target="_top" rel="nofollow">http://java-gnome.sourceforge.net/4.0/doc/api/org/gnome/pango/RiseAttribute.html</a><br><br>(the caveats of
<br><a href="http://en.wikipedia.org/wiki/Subscript_and_superscript" target="_top" rel="nofollow">http://en.wikipedia.org/wiki/Subscript_and_superscript</a><br>notwithstanding; I don't know of any libre fonts that have proper
<br>typographic support for all upper and lower case latin characters (let
<br>alone any other language, so you're stuck with doing it yourself if you
<br>want other than 1-9 super or sub)
<br><br>As far as I can tell, footnotes and exponents are the only time one
<br>actually _uses_ superscript. And I've never seen a footnote beside an
<br>exponent in anything I've ever done.
<br><br>A screenshot with a whack of artificial footnotes & citations is at
<br><a href="http://research.operationaldynamics.com/files/andrew/FootnotesAndExponents.png" target="_top" rel="nofollow">http://research.operationaldynamics.com/files/andrew/FootnotesAndExponents.png</a><br>as you can see the only weird one is the footnote after the 10^24
<br>exponent. But other than that it all seems really sane (especially
<br>footnote #42, which was the original one when I was laying out the
<br>typography). The point is kinda to de-emphasize the notes markers,
<br>frankly, and that seems to be successful. The exponents, on the other
<br>hand, really does look good with the Unicode superscript characters.
<br><br>Anyway I thought I'd see if anyone cared to offer views on the topic.
<br><br>Cheers :)
<br><br>AfC
<br>Sydney
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<br><br>If you care about API additions, etc then grab current 'mainline' and
<br>do:
<br><br>$ bzr diff -r tag:v.4.0.13
<br><br>and of course:
<br><br>$ bzr log -r tag:v4.0.13..
<br><br>will tell you in gory detail :)
<br><br>++
<br><br>Srichand has alerted us to a really hair problem to do with some Java
<br>implementations being unable to differentiate between deprecated inner
<br>interface Button.CLICKED and the replacement Button.Clicked. This is
<br>mildly extraordinary.
<br><br>Since these deprecations have been in place for well over a year [and
<br>with assertions enabled you can't even use the code paths in question],
<br>I'm willing to see the old code removed. The discussion just before
<br>4.0.13 about API versions applies again, and although I was going to
<br>remove this code when we bumped to 4.1, I'm not otherwise that worried
<br>about it; no one with public code is using the old signatures and so I
<br>think we can stick with 4.0
<br><br>When we decide about this I'll cut a release candidate tarball.
<br><br>++
<br><br>If someone wants a bit of an easy challenge, maybe they could have a go
<br>on the 'deprecated-2.16' work? See:
<br><a href="http://article.gmane.org/gmane.comp.gnome.bindings.java.devel/1330" target="_top" rel="nofollow">http://article.gmane.org/gmane.comp.gnome.bindings.java.devel/1330</a><br><br>AfC
<br>Sydney
<br><br>--
<br>Andrew Frederick Cowie
<br><br>Operational Dynamics is an operations and engineering consultancy
<br>focusing on IT strategy, organizational architecture, systems
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<br><a href="https://lists.sourceforge.net/lists/listinfo/java-gnome-hackers" target="_top" rel="nofollow">https://lists.sourceforge.net/lists/listinfo/java-gnome-hackers</a><br><div class="small"><br/><img src="http://old.nabble.com/images/icon_attachment.gif" > <strong>signature.asc</strong> (204 bytes) <a href="http://old.nabble.com/attachment/26328871/0/signature.asc" target="_top">Download Attachment</a></div><p>From forum: <a href="http://old.nabble.com/Gnome---Java-Binding---Dev-f1289.html" embed="fixTarget[1289]" target="_top" >Gnome - Java Binding - Dev</a></p>tag:old.nabble.com,2006:post-26301158Re: GConf binding status2009-11-11T05:23:36Z2009-11-11T05:23:36ZhwiechersAndrew Cowie <andrew@...> writes:
<br><div class='shrinkable-quote'><br>>
<br>> On Mon, 2009-11-09 at 16:36 +1100, Andrew Cowie wrote:
<br>>
<br>> > Branch at
<br>>
<br>> (and I just looked and realized I have a large-ish patch sitting
<br>> uncommitted in a Working Tree from that Branch here. Clearly I wasn't
<br>> happy about the way things were working out, but that was a long time
<br>> ago. If someone really does want to work on this, I'll throw it into a
<br>> bundle and we can talk about it on the java-gnome-hackers mailing list)
<br>>
<br>> AfC
<br>> Cape Byron
<br>>
</div><br>I'm going to wait for GSettings stuff to land. I can live without
<br>those bindings at the moment.
<br><br>Thanks,
<br>Henri
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<br><br>> Branch at
<br><br>(and I just looked and realized I have a large-ish patch sitting
<br>uncommitted in a Working Tree from that Branch here. Clearly I wasn't
<br>happy about the way things were working out, but that was a long time
<br>ago. If someone really does want to work on this, I'll throw it into a
<br>bundle and we can talk about it on the java-gnome-hackers mailing list)
<br><br>AfC
<br>Cape Byron
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<br>> Hi,
<br>>
<br>> What the status of the GConf bindings? Is it in java-gnome 4.0?
<br><br>Very quickly [because I have 3.5 minutes of time left in the internet
<br>cafe I'm in :)]
<br><br>I started trying to get a GConf binding together oh, about a year ago.
<br>It wasn't as easy as I would have liked; type safety was elusive.
<br><br>Branch at
<br><a href="http://research.operationaldynamics.com/bzr/java-gnome/hackers/andrew/gconf/" target="_top" rel="nofollow">http://research.operationaldynamics.com/bzr/java-gnome/hackers/andrew/gconf/</a><br><br>*BUT*
<br><br>The GNOME community is on the cusp of replacing GConf with dconf +
<br>GSettings [see desktop-devel-list] so maybe we should just wait-out on
<br>this. Hard to say.
<br><br>AfC
<br>Cape Byron
<br><br><br><br>--
<br>Andrew Frederick Cowie
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<br><br>What the status of the GConf bindings? Is it in java-gnome 4.0?
<br><br>Thanks,
<br>Henri Wiechers
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<br>> I am writing a dialog, in which the "close" button is aligned to the
<br>> left, like other gtk+ applications.
<br><br>It's a HIG requirement.
<br><br>More accurately, dialogs in GNOME user interfaces all have their common
<br>case, go forward action being the right-most, while which button is set
<br>as default (ie, what happens if you press Enter) depends on the
<br>severity.
<br><br>Anyway,
<br><br>> But I haven't found a way how to do it.
<br><br>Sounds like you want MessageDialog. It's easy enough to drive, but we
<br>have some useful subclasses which make it even easier to Do The Right
<br>Thing.
<br><br>Have a look at QuestionMessageDialog:
<br><a href="http://java-gnome.sourceforge.net/4.0/doc/api/org/gnome/gtk/QuestionMessageDialog.html" target="_top" rel="nofollow">http://java-gnome.sourceforge.net/4.0/doc/api/org/gnome/gtk/QuestionMessageDialog.html</a><br><br>or more likely WarningMessageDialog:
<br><a href="http://java-gnome.sourceforge.net/4.0/doc/api/org/gnome/gtk/WarningMessageDialog.html" target="_top" rel="nofollow">http://java-gnome.sourceforge.net/4.0/doc/api/org/gnome/gtk/WarningMessageDialog.html</a><br>[hm, that needs a screenshot. Anyone want to contribute?]
<br><br>should do the trick for you.
<br><br>Good luck!
<br><br>AfC
<br>Sydney
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<br><br>> I know mixing swing&awt with java-gnome is supported
<br><br>That's right. You can't have two different toolkits both trying to drive
<br>GTK.
<br><br>If you use java-gnome to write your UI in GTK, then you won't have any
<br>problems. Then you can use our libnotify package.
<br><br>AfC
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So maybe its a bug in the x64 build of java-gnome?</div><div><br></div><div><br></div><div><br></div><div><div>Greetings</div><div><br></div><div>Patrick von Reth</div><br><div class="gmail_quote">2009/10/31 Patrick von Reth <span dir="ltr"><<a href="http://old.nabble.com/user/SendEmail.jtp?type=post&post=26142993&i=0" target="_top" rel="nofollow">patrick@...</a>></span><br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">Hi,<div>I'm developing the <a href="http://code.google.com/p/jweatherwatch/" target="_blank" rel="nofollow">jWeatherWatch</a> watch in my free time and a view weeks ago I discovered java-gnome which supports an easy way to use libnotify.</div>
<div>I know mixing swing&awt with java-gnome is not official supported but it works almost great.</div>
<div>After I solved a Gthread error when I initialized java-gnome after a TrayIcon notification the only unsolved issue is </div><div><br></div><div><div><i>"The program 'jWeatherWatch' received an X Window System error.</i></div>
<div><i>This probably reflects a bug in the program.</i></div><div><i>The error was 'BadMatch (invalid parameter attributes)'.</i></div><div><i> (Details: serial 2493 error_code 8 request_code 146 minor_code 4)</i></div>
<div><i> (Note to programmers: normally, X errors are reported asynchronously;</i></div><div><i> that is, you will receive the error a while after causing it.</i></div><div><i> To debug your program, run it with the --sync command line</i></div>
<div><i> option to change this behavior. You can then get a meaningful</i></div><div><i> backtrace from your debugger if you break on the gdk_x_error() function.)".</i></div><div><i><br></i></div><div>It always appears in the settings dialog, clicking on "OK", "Apply", or switching to the "MinimalView" tab. Is this a bug or just a incompatibility of java-gnome and swing/awt?</div>
<div><br></div><div>Src of <a href="http://code.google.com/p/jweatherwatch/source/browse/trunk/src/gui/settings/SettingsDialog.java" target="_blank" rel="nofollow">SettingsDialog</a></div><div><br></div><div><br></div><div><br></div><div>
Greetings</div>
<div><br></div><div>Patrick von Reth</div><div><br></div><div><br></div></div>
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<div>After I solved a Gthread error when I initialized java-gnome after a TrayIcon notification the only unsolved issue is </div><div><br></div><div><div><i>"The program 'jWeatherWatch' received an X Window System error.</i></div>
<div><i>This probably reflects a bug in the program.</i></div><div><i>The error was 'BadMatch (invalid parameter attributes)'.</i></div><div><i> (Details: serial 2493 error_code 8 request_code 146 minor_code 4)</i></div>
<div><i> (Note to programmers: normally, X errors are reported asynchronously;</i></div><div><i> that is, you will receive the error a while after causing it.</i></div><div><i> To debug your program, run it with the --sync command line</i></div>
<div><i> option to change this behavior. You can then get a meaningful</i></div><div><i> backtrace from your debugger if you break on the gdk_x_error() function.)".</i></div><div><i><br></i></div><div>It always appears in the settings dialog, clicking on "OK", "Apply", or switching to the "MinimalView" tab. Is this a bug or just a incompatibility of java-gnome and swing/awt?</div>
<div><br></div><div>Src of <a href="http://code.google.com/p/jweatherwatch/source/browse/trunk/src/gui/settings/SettingsDialog.java" target="_top" rel="nofollow">SettingsDialog</a></div><div><br></div><div><br></div><div><br></div><div>Greetings</div>
<div><br></div><div>Patrick von Reth</div><div><br></div><div><br></div></div>
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<br>Thanks!<p>From forum: <a href="http://old.nabble.com/Gnome---Java-Binding---General-f1288.html" embed="fixTarget[1288]" target="_top" >Gnome - Java Binding - General</a></p>tag:old.nabble.com,2006:post-26048399Re: GtkWindow XID2009-10-25T08:23:54Z2009-10-25T08:23:54ZGoundyEmmanuel Rodriguez wrote:
<br>>
<br>> Edit the file jni/bindings_java.h and add the following include after
<br>> the other ones already there:
<br>> #include <gdk/gdkx.h>
<br>>
<br>>
<br>> --
<br>> Emmanuel Rodriguez
<br>Emmanuel, You nailed it !
<br>That worked \o/
<br><br>Bad damn, I've been spending too much time for nothing... X is still
<br>giving a BadWindow...
<br>Anyway I better digg a bit arround this :)
<br><br>Thanks for help emmanuel ;)
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<div class='shrinkable-quote'><br>> Emmanuel Rodriguez wrote:
<br>>> On Sun, Oct 25, 2009 at 2:57 PM, Goundy <<a href="http://old.nabble.com/user/SendEmail.jtp?type=post&post=26048684&i=0" target="_top" rel="nofollow">goundy@...</a>
<br>>> <mailto:<a href="http://old.nabble.com/user/SendEmail.jtp?type=post&post=26048684&i=1" target="_top" rel="nofollow">goundy@...</a>>> wrote:
<br>>>
<br>>> Emmanuel Rodriguez wrote:
<br>>>
<br>>>
<br>>> Are you sure then that eclipse is picking up the right
<br>>> gtkjini.so file?
<br>>> Did you install your new bindings?
<br>>>
<br>>>
<br>>> Oh my! when I rebuild my branch, actually my method is being
<br>>> erased as the GdkDrawable file gets replace by the new generated
<br>>> one which doesn't contain my method.
<br>>> I guess I have to edit the source .def file to keep my method
<br>>> right ?
<br>>>
<br>>> I think so, I haven't used the java-gnome bindings in a long time.
<br>>> I wish that someone else that's using the bindings could help you :(
<br>>>
<br>>> --
<br>>> Emmanuel Rodriguez
<br>> Okay thank you Emmanuel, you helped a lot :P
<br>>
<br>> Well, the generator is giving me:
<br>>
<br>> static final FIXME getXid(Drawable self) throws
<br>> BlacklistedMethodError {
<br>> throw new BlacklistedMethodError("long");
<br>> }
<br>>
<br>> and I have the following code in GdkDrawable.defs:
<br>>
<br>> (define-method get_xid
<br>> (of-object "GdkDrawable")
<br>> (c-name "gdk_x11_drawable_get_xid")
<br>> (caller-owns-return #t)
<br>> (return-type "long")
<br>> )
<br>>
<br>> Am I missing something here ?
<br>> Thanks
<br>>
</div>Oh I get the correct one :P
<br>(define-method get_xid
<br> (of-object "GdkDrawable")
<br> (c-name "gdk_x11_drawable_get_xid")
<br> (caller-owns-return #t)
<br> (return-type "gulong")
<br>)
<br>Is fine, it gives:
<br><br> static final long getXid(Drawable self) {
<br> long result;
<br><br> if (self == null) {
<br> throw new IllegalArgumentException("self can't be null");
<br> }
<br><br> synchronized (lock) {
<br> result = gdk_x11_drawable_get_xid(pointerOf(self));
<br><br> return result;
<br> }
<br> }
<br><br> private static native final long gdk_x11_drawable_get_xid(long self);
<br><br>But when I build java-gnome I get:
<br>generated/bindings/org/gnome/gdk/GdkDrawable.c: In function
<br>'Java_org_gnome_gdk_GdkDrawable_gdk_1x11_1drawable_1get_1xid':
<br>generated/bindings/org/gnome/gdk/GdkDrawable.c:1044: error: implicit
<br>declaration of function 'gdk_x11_drawable_get_xid'
<br>compilation terminated due to -Wfatal-errors.
<br>make: *** [build-java] Error 1
<br><br>Which is really weird...
<br>Ideas are welcome :)
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<br><a href="https://lists.sourceforge.net/lists/listinfo/java-gnome-hackers" target="_top" rel="nofollow">https://lists.sourceforge.net/lists/listinfo/java-gnome-hackers</a><br><p>From forum: <a href="http://old.nabble.com/Gnome---Java-Binding---Dev-f1289.html" embed="fixTarget[1289]" target="_top" >Gnome - Java Binding - Dev</a></p>tag:old.nabble.com,2006:post-26048438Re: GtkWindow XID2009-10-25T07:43:25Z2009-10-25T07:43:25ZGoundyEmmanuel Rodriguez wrote:
<div class='shrinkable-quote'><br>> On Sun, Oct 25, 2009 at 2:57 PM, Goundy <<a href="http://old.nabble.com/user/SendEmail.jtp?type=post&post=26048438&i=0" target="_top" rel="nofollow">goundy@...</a>
<br>> <mailto:<a href="http://old.nabble.com/user/SendEmail.jtp?type=post&post=26048438&i=1" target="_top" rel="nofollow">goundy@...</a>>> wrote:
<br>>
<br>> Emmanuel Rodriguez wrote:
<br>>
<br>>
<br>> Are you sure then that eclipse is picking up the right
<br>> gtkjini.so file?
<br>> Did you install your new bindings?
<br>>
<br>>
<br>> Oh my! when I rebuild my branch, actually my method is being
<br>> erased as the GdkDrawable file gets replace by the new generated
<br>> one which doesn't contain my method.
<br>> I guess I have to edit the source .def file to keep my method right ?
<br>>
<br>> I think so, I haven't used the java-gnome bindings in a long time.
<br>> I wish that someone else that's using the bindings could help you :(
<br>>
<br>> --
<br>> Emmanuel Rodriguez
</div>Okay thank you Emmanuel, you helped a lot :P
<br><br>Well, the generator is giving me:
<br><br> static final FIXME getXid(Drawable self) throws BlacklistedMethodError {
<br> throw new BlacklistedMethodError("long");
<br> }
<br><br>and I have the following code in GdkDrawable.defs:
<br><br>(define-method get_xid
<br> (of-object "GdkDrawable")
<br> (c-name "gdk_x11_drawable_get_xid")
<br> (caller-owns-return #t)
<br> (return-type "long")
<br>)
<br><br>Am I missing something here ?
<br>Thanks
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<br><a href="https://lists.sourceforge.net/lists/listinfo/java-gnome-hackers" target="_top" rel="nofollow">https://lists.sourceforge.net/lists/listinfo/java-gnome-hackers</a><br><p>From forum: <a href="http://old.nabble.com/Gnome---Java-Binding---Dev-f1289.html" embed="fixTarget[1289]" target="_top" >Gnome - Java Binding - Dev</a></p>tag:old.nabble.com,2006:post-26048398Re: GtkWindow XID2009-10-25T07:12:28Z2009-10-25T07:12:28ZEmmanuel Rodriguez<br><br><div class="gmail_quote">On Sun, Oct 25, 2009 at 3:59 PM, Goundy <span dir="ltr"><<a href="http://old.nabble.com/user/SendEmail.jtp?type=post&post=26048398&i=0" target="_top" rel="nofollow">goundy@...</a>></span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div><div></div><div class="h5">Goundy wrote:<br>
> and I have the following code in GdkDrawable.defs:<br>
><br>
> (define-method get_xid<br>
> (of-object "GdkDrawable")<br>
> (c-name "gdk_x11_drawable_get_xid")<br>
> (caller-owns-return #t)<br>
> (return-type "long")<br>
> )<br>
><br></div></div></blockquote><div><br><br></div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"><div><div class="h5">
> Am I missing something here ?<br>
> Thanks<br>
><br>
</div></div>Oh I get the correct one :P<br>
<div class="im">(define-method get_xid<br>
(of-object "GdkDrawable")<br>
(c-name "gdk_x11_drawable_get_xid")<br>
(caller-owns-return #t)<br>
</div> (return-type "gulong")<br>
)<br></blockquote><div>That fix the first problem: the function is now generated.<br> <br></div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
Is fine, it gives:<br>
<br>
static final long getXid(Drawable self) {<br>
<div class="im"> long result;<br>
<br>
if (self == null) {<br>
throw new IllegalArgumentException("self can't be null");<br>
}<br>
<br>
synchronized (lock) {<br>
</div> result = gdk_x11_drawable_get_xid(pointerOf(self));<br>
<br>
return result;<br>
}<br>
}<br>
<br>
private static native final long gdk_x11_drawable_get_xid(long self);<br>
<br>
But when I build java-gnome I get:<br>
generated/bindings/org/gnome/gdk/GdkDrawable.c: In function<br>
'Java_org_gnome_gdk_GdkDrawable_gdk_1x11_1drawable_1get_1xid':<br>
generated/bindings/org/gnome/gdk/GdkDrawable.c:1044: error: implicit<br>
declaration of function 'gdk_x11_drawable_get_xid'<br>
compilation terminated due to -Wfatal-errors.<br>
make: *** [build-java] Error 1<br>
<br>
Which is really weird...<br>
Ideas are welcome :)<br>
<br></blockquote><div>Edit the file jni/bindings_java.h and add the following include after the other ones already there:<br>#include <gdk/gdkx.h><br><br><br></div></div>-- <br>Emmanuel Rodriguez<br>
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<div class="im">Emmanuel Rodriguez wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<br>
Are you sure then that eclipse is picking up the right gtkjini.so file?<br>
Did you install your new bindings?<br>
<br>
</blockquote>
<br></div>
Oh my! when I rebuild my branch, actually my method is being erased as the GdkDrawable file gets replace by the new generated one which doesn't contain my method.<br>
I guess I have to edit the source .def file to keep my method right ?<br>
</blockquote></div>I think so, I haven't used the java-gnome bindings in a long time.<br>I wish that someone else that's using the bindings could help you :(<br><br>-- <br>Emmanuel Rodriguez<br>
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<br>>
<br>> Are you sure then that eclipse is picking up the right gtkjini.so file?
<br>> Did you install your new bindings?
<br>>
<br><br>Oh my! when I rebuild my branch, actually my method is being erased as
<br>the GdkDrawable file gets replace by the new generated one which doesn't
<br>contain my method.
<br>I guess I have to edit the source .def file to keep my method right ?
<br><br>------------------------------------------------------------------------------
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<div><div></div><div class="h5">Emmanuel Rodriguez wrote:<br>
<blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
No exactly, this just means that you have the libraries installed, but java-gnome might not be using them (linked).<br>
<br>
Check with ldd if the java-gnome .so is linked with gdk-x11<br>
ldd tmp/libgtkjni-*.so | grep gdk-x11-2.0<br>
<br>
If ldd doesn't show the file then it isn't linked. Try to link it your self by hand:<br>
rm tmp/libgtkjni-*.so<br>
LDFLAGS=`pkg-config --libs gdk-x11-2.0` build/faster<br>
<br>
If ldd shows the file in the dependency list then there's something strange going on.<br>
<br>
</blockquote></div></div><font color="#888888">
goundy@localhost ~/java-gnome/working/tmp $ ldd <a href="http://libgtkjni-4.0.12-dev.so" target="_blank" rel="nofollow">libgtkjni-4.0.12-dev.so</a> | grep gdk-x11<br>
libgdk-x11-2.0.so.0 => /usr/lib/libgdk-x11-2.0.so.0 (0xb78ec000)<br>
that's odd :°)<br>
Btw, I haven't modified any .def file yet, I just added the new accessor in GdkDrawable.java and then linked (in eclipse) the java-gnome project to my testing project.<br></font></blockquote><div>Are you sure then that eclipse is picking up the right gtkjini.so file?<br>
Did you install your new bindings? <br></div></div><br>-- <br>Emmanuel Rodriguez<br>
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<div class='shrinkable-quote'><br>> No exactly, this just means that you have the libraries installed, but
<br>> java-gnome might not be using them (linked).
<br>>
<br>> Check with ldd if the java-gnome .so is linked with gdk-x11
<br>> ldd tmp/libgtkjni-*.so | grep gdk-x11-2.0
<br>>
<br>> If ldd doesn't show the file then it isn't linked. Try to link it your
<br>> self by hand:
<br>> rm tmp/libgtkjni-*.so
<br>> LDFLAGS=`pkg-config --libs gdk-x11-2.0` build/faster
<br>>
<br>> If ldd shows the file in the dependency list then there's something
<br>> strange going on.
<br>>
</div>goundy@localhost ~/java-gnome/working/tmp $ ldd libgtkjni-4.0.12-dev.so
<br>| grep gdk-x11
<br> libgdk-x11-2.0.so.0 => /usr/lib/libgdk-x11-2.0.so.0 (0xb78ec000)
<br>that's odd :°)
<br>Btw, I haven't modified any .def file yet, I just added the new accessor
<br>in GdkDrawable.java and then linked (in eclipse) the java-gnome project
<br>to my testing project.
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Morning,<br>
<div class="im"><br>
Emmanuel Rodriguez wrote:<br>
><br>
><br>
> java-gnome is probably not linking against gdk-x11<br>
> Try to see if you can link it with gdk-x11-2.0 from pkg-config<br>
><br>
> You can find the exact linker flags by running:<br>
><br>
> pkg-config --libs gdk-x11-2.0<br>
><br>
><br>
</div>Actually it is, I've:<br>
goundy@localhost ~ $ pkg-config --libs gdk-x11-2.0<br>
-lgdk-x11-2.0 -lgdk_pixbuf-2.0 -lpangocairo-1.0 -lpango-1.0 -lcairo<br>
-lgobject-2.0 -lgmodule-2.0 -lglib-2.0<br>
<br>
That's kinda weird.<br></blockquote><div>No exactly, this just means that you have the libraries installed, but java-gnome might not be using them (linked).<br><br>Check with ldd if the java-gnome .so is linked with gdk-x11</div>
</div> ldd tmp/libgtkjni-*.so | grep gdk-x11-2.0<br><br>If ldd doesn't show the file then it isn't linked. Try to link it your self by hand:<br> rm tmp/libgtkjni-*.so<br clear="all"> LDFLAGS=`pkg-config --libs gdk-x11-2.0` build/faster<br>
<br>If ldd shows the file in the dependency list then there's something strange going on.<br><br>-- <br>Emmanuel Rodriguez<br>
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<br><br>Emmanuel Rodriguez wrote:
<div class='shrinkable-quote'><br>>
<br>>
<br>> java-gnome is probably not linking against gdk-x11
<br>> Try to see if you can link it with gdk-x11-2.0 from pkg-config
<br>>
<br>> You can find the exact linker flags by running:
<br>>
<br>> pkg-config --libs gdk-x11-2.0
<br>>
<br>>
</div>Actually it is, I've:
<br>goundy@localhost ~ $ pkg-config --libs gdk-x11-2.0
<br>-lgdk-x11-2.0 -lgdk_pixbuf-2.0 -lpangocairo-1.0 -lpango-1.0 -lcairo
<br>-lgobject-2.0 -lgmodule-2.0 -lglib-2.0
<br><br>That's kinda weird.
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<br>java-gnome-hackers mailing list
<br><a href="http://old.nabble.com/user/SendEmail.jtp?type=post&post=26046646&i=0" target="_top" rel="nofollow">java-gnome-hackers@...</a>
<br><a href="https://lists.sourceforge.net/lists/listinfo/java-gnome-hackers" target="_top" rel="nofollow">https://lists.sourceforge.net/lists/listinfo/java-gnome-hackers</a><br><p>From forum: <a href="http://old.nabble.com/Gnome---Java-Binding---Dev-f1289.html" embed="fixTarget[1289]" target="_top" >Gnome - Java Binding - Dev</a></p>tag:old.nabble.com,2006:post-26040992Re: GtkWindow XID2009-10-24T10:00:57Z2009-10-24T10:00:57ZEmmanuel Rodriguez<br><br><div class="gmail_quote">On Sat, Oct 24, 2009 at 4:22 PM, Goundy <span dir="ltr"><<a href="http://old.nabble.com/user/SendEmail.jtp?type=post&post=26040992&i=0" target="_top" rel="nofollow">goundy@...</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
Emmanuel Rodriguez thank you very much, you helped lot<br>
<div class="im"><br>
Emmanuel Rodriguez wrote:<br>
><br>
><br>
> the XID has to be taken from GdkDrawable, from which GdkWindow<br>
> inherits. You used a GtkWindow, instead of GdkWindow. I've checked the<br>
> doc of GdkDrawable [1] and it is missing the accessor for xid wich in<br>
> C is provide by the function gdk_x11_drawable_get_xid [2]. Without<br>
> that accesor you will not be able to take the XID of a window.<br>
><br>
><br>
><br>
</div>> --<br>
> Emmanuel Rodriguez<br>
The only problem now is that I'm getting:<br>
Exception in thread "main" java.lang.UnsatisfiedLinkError:<br>
org.gnome.gdk.GdkDrawable.gdk_x11_drawable_get_xid(J)I<br>
at org.gnome.gdk.GdkDrawable.gdk_x11_drawable_get_xid(Native Method)<br>
at org.gnome.gdk.GdkDrawable.getXID(GdkDrawable.java:508)<br></blockquote><div>java-gnome is probably not linking against gdk-x11</div><div>Try to see if you can link it with gdk-x11-2.0 from pkg-config</div><div><br>
</div><div>You can find the exact linker flags by running:</div><div><br></div><div>pkg-config --libs gdk-x11-2.0</div><div><br></div></div>-- <br>Emmanuel Rodriguez<br>
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<br><a href="http://old.nabble.com/user/SendEmail.jtp?type=post&post=26040992&i=1" target="_top" rel="nofollow">java-gnome-hackers@...</a>
<br><a href="https://lists.sourceforge.net/lists/listinfo/java-gnome-hackers" target="_top" rel="nofollow">https://lists.sourceforge.net/lists/listinfo/java-gnome-hackers</a><br><p>From forum: <a href="http://old.nabble.com/Gnome---Java-Binding---Dev-f1289.html" embed="fixTarget[1289]" target="_top" >Gnome - Java Binding - Dev</a></p>tag:old.nabble.com,2006:post-26039466Re: GtkWindow XID2009-10-24T07:23:48Z2009-10-24T07:23:48ZGoundyGoundy wrote:
<div class='shrinkable-quote'><br>> Emmanuel Rodriguez thank you very much, you helped lot
<br>>
<br>> Emmanuel Rodriguez wrote:
<br>>>
<br>>>
<br>>> the XID has to be taken from GdkDrawable, from which GdkWindow
<br>>> inherits. You used a GtkWindow, instead of GdkWindow. I've checked
<br>>> the doc of GdkDrawable [1] and it is missing the accessor for xid
<br>>> wich in C is provide by the function gdk_x11_drawable_get_xid [2].
<br>>> Without that accesor you will not be able to take the XID of a window.
<br>>>
<br>>>
<br>>>
<br>>> --
<br>>> Emmanuel Rodriguez
<br>> The only problem now is that I'm getting:
<br>> Exception in thread "main" java.lang.UnsatisfiedLinkError:
<br>> org.gnome.gdk.GdkDrawable.gdk_x11_drawable_get_xid(J)I
<br>> at org.gnome.gdk.GdkDrawable.gdk_x11_drawable_get_xid(Native Method)
<br>> at org.gnome.gdk.GdkDrawable.getXID(GdkDrawable.java:508)
<br>>
<br>> And I added a call to that native function as:
<br>>
<br>> GdkWindow.java:
<br>>
<br>> static final long getXID(Drawable self) {
<br>> long result;
<br>>
<br>> if (self == null) {
<br>> throw new IllegalArgumentException("self can't be null");
<br>> }
<br>>
<br>> synchronized (lock) {
<br>> result = gdk_x11_drawable_get_xid(pointerOf(self));
<br>>
<br>> return result;
<br>> }
<br>> }
<br>>
<br>> Any ideas ?
<br>> Thanks
<br>>
</div>Oh Sorry, I meant GdkDrawable.java *
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