Hi Klemens, It sounds like we could benefit from each others efforts. I am not familiar with the changes Silvio made. Can you give me more details regarding this? We have taken the Sane wrapper code (the files listed under #2 below) and converted them into a package. We have also fixed a few bugs in the Sane.c code and that's as far as we've taken it. We have not contributed this back yet, because we need to resolve a few design issues with this community.
>From Henning's comments, it sounds like we're at liberty to morph this as needed and if we contribute something back that works, everyone is happy. At a minimum, I would suggest we separate the wrapper code from the example Swing apps. Let me know your thoughts and we'll go from there. Chris -----Original Message----- From: Klemens Dickbauer [mailto:[email protected]]=20 Sent: Sunday, November 02, 2003 3:37 PM To: [email protected] Subject: Re: [sane-devel] Java API (japi) Changes Hi Chris and Henning! I also started some work on the Java Api. My aim is to provide a scan-wrapper=20 that would also work under other OSes (like similar solutions in Java). Since=20 the Windows side (TWAIN) is not easy to handle when you want to stay pretty=20 close to OSS I started with some work on the SANE side. I would be pretty happy to coordinate myself with other people working on the=20 Sane Java-API. How far is work ongoing on your side? I started with the changes of Silvio=20 (thanks to him) already a few month ago but unfortunately had to back down=20 the last weeks because of a lot of work in my office... i hope i can contribute to the project, ~klemens Am Freitag, 31. Oktober 2003 10:58 schrieb Henning Meier-Geinitz: > Hi, > > sorry for the late response. I hoped someone else would answer :-) > > On Fri, Oct 24, 2003 at 03:08:58PM -0500, Chris Chesney wrote: > > We've created a beta version of a web-based document management > > system that we hope to provide as an open source solution if the > > product matures. > > Ah, sound nice. > > > The solution is Java based and our intent was to > > use the JNI wrappers provided in the japi directory as means to > > control the backend scanning. We're learning as we go, but this is > > what we've done so far: > > Thanks for the comments. Unfortunetely I don't know anything about > java and I'm not even able to run "make" in japi/. Well I am, but it > > doesn't work: > | javac Sane.java > | javah -jni Sane > | couldn't find class SaneOption > | couldn't find class SaneParameters > | make: *** [Sane.h] Fehler 1 > > After setting classpath to . : > | javac --classpath . Jscanimage.java > | Jscanimage.java:715: Warnung: Discouraged redundant use of public' > | modifier in declaration of abstract method setFromControl'. > | public void setFromControl(); // Ask SANE control for > | current value. > | ^ > | Jscanimage.java:68: error: Class or interface > | com.sun.java.swing.event.ChangeListener' not found in import. > | import com.sun.java.swing.event.ChangeListener; > | ^ > | Jscanimage.java:95: error: Type JButton' not found in declaration of > | field scanButton'. > | private JButton scanButton, previewButton; > | ^ > | Jscanimage.java:0: confused by earlier errors, bailing out > > Well, I'm using gcj et al, maybe that just doesn't work or I'm missing > something. > > > 1. Fixed a bug in Sane.c - Line 268 should be > > jclass stringClass =3D (*env)->FindClass(env, "java/lang/String"); > > *NOT* > > jclass stringClass =3D (*env)->FindClass(env, "String"); > > Ok. > > > 2. Added a package statement to the following 5 java classes. For > > our purposes, I called the package japi. It would be more > > appropriate to follow the typical package naming convention and would > > ask for a suggestion from you if you want this committed to the > > project. > > > > - SaneDevice.java > > - SaneOption.java > > - SaneParameters.java > > - SaneRange.java > > - Sane.java > > No idea. What is the "typical package naming convention"? The pacakge > containing the java api is called "sane-backends". Maybe we should > split the japi stuff from sane-backends anyway. > > > 3. By making these files part of a package, Sane.c requires an > > additional change to make the object references fully qualified. > > Well, as I said I have no idea about the details of Java. So I ask > anyone with some experiences with java to just send a patch (and an > update of the documentation) to get it working :-) > > > We haven't done anything with the Swing app that is included in the > > japi directory because we lack the experience in Swing and it isn't > > necessary for the project we're working on. If your interested in > > separating the wrapper code from the example java apps, we're almost > > there and would be happy to work with you to get it committed. > > That sounds reasonable. Patches are welcome. But that's stuff for > after the release of sane-backends 1.0.13. > > > if you were looking for more of a complete overhaul of the entire > > directory, we're probably not up for the challenge. > > I'd appreciate if I could just run "make" and everything would work > out-of-the-box. Well, maybe with the appropriate java development kit > installed it would... > > Bye, > Henning > > _______________________________________________ > sane-devel mailing list > [email protected] > http://lists.alioth.debian.org/mailman/listinfo/sane-devel --=20 Klemens Dickbauer, MSK Informatik GesmbH _______________________________________________ sane-devel mailing list [email protected] http://lists.alioth.debian.org/mailman/listinfo/sane-devel
