JasperReports viewer

[Werner Lehmann]

I am thinking about using FXGraphics2D in order to show Jasper reports. Except for exporting to PDF (using a PDF viewer) the tyical option here is to use the Swing based JRViewer component included with the Jasper library. Internally it renders using either an image or graphics2d. I need to run a few tests but in theory this might be workable. If somebody knows in practice I'd like to hear about it Otherwise I'll post my findings if/when I get to this. Thx.

[david.gilbert]

That sounds great. I don't know the internals of the Jasper Reports viewer component, but if it uses the Graphics2D class for rendering then there shouldn't be any major technical hurdles (although I guess perhaps there might be some subtle font handling issues, since precise text layout is pretty important for a reporting library). I'm looking forward to hearing how it goes and if you have any questions I'll do my best to help.

[Werner Lehmann]

Yes, fonts worry me the most (along with two TODOs left in your code At any rate I have a proof-of-concept now, takes just a few lines of code because Jasper can already export to graphics2d - that's what it uses anyway for its own swing jrviewer component. Different fonts worked well so far, also tested transparency / opacity.

[david.gilbert]

Sounds great. The TODOs shouldn't give you much trouble, and I have some code that I will get committed soon that removes them anyway (for the 1.2 release).

[Werner Lehmann]

Hi David,

here's some feedback. Thanks to your work it was more or less simple to create this JasperReports viewer with JavaFX. It was actually quite fun to do. So far I had not a single issue with FXGraphics2D and performance is quite good. Of course there was not much testing. I might be able to open-source this thing at a later time. Until then I can share a screenshot if you are interested. I am not posting it here though because of possible legal issues.

So thanks again, without this I'd be stuck with SwingNode

Werner

[david.gilbert]

Great! It would be super cool if you could get some or all of your JasperReports viewer code into open source.