I'm working on a project in Java where I need to display a powerpoint presentation complete with transitions and animations. The Apache POI library provides a nice method of viewing previews of different slides statically, but it seems that any animations or transitions need to be implemented separately which, looking at the library seems to be a fair bit of work.
I've no problem with hard work - but I'm somewhat surprised if this hasn't been done already (frantic Googling however hasn't brought up any results.) Does anyone know of a Java library for powerpoint that handles animations relatively easily?
Unless someone comes up with that PowerPoint Java library for you, you might want to check out PowerPoint Object Linking and Embedding (OLE).
You can use COM4J to have almost all the classes/interface of the namespace microsoft.office.interop.powerpoint , Its almost like your using it from C#. On the code samples from the download you have the package you need with all the interface/classes implemented for you.
Hope it helps you out :P
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I've learnt python recently and I want to make an app for android. But everywhere on the net, it seems Java and Eclipse are the only ones that can be used.
So, my question is:
1) Can I use python to make an android app?
2) What kind of platform should I use to make an app with python?
Thanks guys!
If you're just looking to run Python scripts, try QPython.
If you're looking to make your Python code run like a native app, or just something more robust than the above, try SL4A.
If you're looking to effectively use Python as a library, and compile an .apk with the Python library included, try Kivy: github.com/kivy/python-for-android.
That said, you'd likely get a lot of benefit from learning Java, and not just for programming natively in Android (which would give you access to a much wider feature set and make your app run more efficiently).
Check out the Scripting Layer For Android, aka SL4A.
Here is a blog for getting started. The blog promises more entries in the series but there don't seem to be any. Still, it is a great starting point. There's quite a few parts to pull together so be patient and check the bottom of that blog entry for dozens of useful links.
If you want to contain everything to the Android device, including the IDE (pretty slick), check this out.
Here's a book from APress that could help with more advanced concepts: Pro Android Python with SL4A
I'm looking for an easy to use Java library that provides some standard methods for enhancing existing images for colorblind people. I found some browser plugins and web sites that do these enhancements, but I found no corresponding Java library. Is there such a library, and if not, is there at least a good source of information how I can implement this functionality on my own?
I haven't found any color blind specific libraries but I did come across a very interesting document which explains how a Mozilla color blind add on was built. The addon uses the Java Advance Imaging (JAI) library to improve the readability. Below are the links to the document:
http://www.faer.ac.in/motorola/pdf/04_Mozilla%20Firefox%20Extension.pdf
Edit: the document says the code for the extension is open source.
If I have implemented a Java Library (that offers certain functionality), could I transform this into a JavaScript library, such that the same functionality can be offered?
I know this may be an ask, but, I was wondering if there are frameworks existing that help in this?
No, in general this is not possible, Java and JavaScript are more or less completely different languages.
However there are a couple of Java to JavaScript translators that you can try. Java2Script is one such tool. Apparently the Google Web Toolkit (GWT) does this as well. Source.
While you could probably do some sort of conversion, it's important to note that Java and JavaScript, while similarly named, are not at all related. Unfortunately, I think you'll be hard pressed to find a framework or system that does a good job converting one to the other. :(
Firstly there is an almost identical question but the answer is not really satisfactory.
Is there a Java or Ruby library for generating MOBI ebook documents?
The answer basically gives a link to amazon and discusses using command line tools which is not really satisfactory for a web app. I want a regular jar file w/ an api that i can invoke without any nasty process invocation.
Does anyone know of a FOSS library that provides this functionality ? I would rather simething like ITEXT that allows me to build the document and then writes the mobi file rather than something that converts an already ready PDF into the MOBI.
The best I've been able to find is a ruby library called KindleR. https://github.com/josh/kindler
I've only used it to convert basic HTML pages to mobi with pretty good success. I've never converted anything with more complicated formatting, so YMMV.
I am looking for a way to make a video out of a java JComponent. I found ways to save components as images, but ideally I would like to be able to have the component paint to the screen and to a video file. I am hoping to find a solution that does not require libraries outside of the core JDK, but lightweight libraries might be considered.
Thanks
I don't believe there are libraries that will do what you are asking. Indeed, it seems a rather strange approach. Could you explain what it is that you are trying to achieve.
I suspect that a more viable approach is to use a screen video capture tool like Camtasia to capture what the user is doing. It costs money, but they do have an evaluation download if your boss is a cheapskate.
The core Java JDK doesn't provide a way to write videos, but you can create videos from raw images using the Xuggler open-source project. See this source code for examples of creating a video from raw images that are snapshots of a desktop.
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