How to embed in java

[AdhTri001]

Hey sir, I am a student working on making a graph plotting gui application with java. I am still a learner and have used Qt with python. I m assuming this project helps ous to render math equations. Can I embed this on my java app (swing). How to use this? I mean whats the syntax for typing the equation? or if your answer is no then is there any book/guide that will help me reimplement this in java? Thanks in advance :)

[JohnDTill]

I don't think there are any easy ways to use QWidgets in Java/swing. If you just want to render equations, there are several MathML and TeX libraries for Java. If you want interactive what-you-see-is-what-you-get editing, you might need to roll your own solution. Honestly I wouldn't recommend that approach for a student project, unless you really want to do it and aren't under deadline pressure.

[JohnDTill]

There are a few WYSIWYG Java equation editors, but they look to be predominately commercial. Maybe using a swing web browser component and incorporating mathquill (http://mathquill.com/) would be your best route. But I think even that is likely too much work, depending on your project.

[AdhTri001]

I m not working on my school project, I m just a programming geek inspired from people like you, to do something that will make my skills just better. I love to do programming and so I always keep myself busy in some projects. I have used qt framework in python and know a bit of c++ so I will try to go through your project and see how everything works. Any help with where to start understanding this project? I really like your work sir. Thanks :)

[JohnDTill]

Great! It is a fun project to tackle at your leisure, and you can learn a lot by implementing it. I've written a little about it in the YAWYSIWYGEE wiki (https://github.com/JohnDTill/YAWYSIWYGEE/wiki/Design). The 'A' section is fairly complete, but beyond that descriptions of interaction are scant.

Actually MathBran and YAWYSIWYGEE have some fundamental limitations which make them not great:

• MathBran was designed with QChar in mind, which represents 2-byte characters. Most string implementations have 1-byte characters, so implementing MathBran without Qt would involve looking at multiple chars, which is overly complicated.
• YAWYISWYGEE deeply depends on Qt. The drawing is implemented using a QGraphicsScene. This means some features require hacks, like drawing the cursor selection and using a const discarding cast to mutate commands in the QUndoStack! Other features are completely impossible. It would be better to achieve framework independence except for low-level drawing and event handling.
• The parallel document elements are connected as an intrusive linked list. This has the advantage of fast insertion/deletion, but these operations depend on user input, which will be relatively infrequent. The linked list is more error prone than a vector implementation.

I'd say don't pay too much mind the code. Look at the wiki to start thinking about the data structures you would use, and I've got some more recent code I can upload in the next couple weeks if you want to dig into the details. The newer stuff has some design issues too, but is generally a lot better.

[AdhTri001]

Thanks! I will surely go through it.