Roadmap

[ufechner7]

This issue is for discussing the road map.
QML.jl is already working nice for me. I would suggest:

1. Announce what we have once more on the mailing list. Ask people, to try it out and to create feature request tickets for what is missing.
2. When someone is found, who has more time, then try to implement the features of the Ruby wrapper as documented here: http://www.rubydoc.info/github/seanchas116/ruby-qml/master/frames

From my point of view you need multi-threading for a good GUI application. This might become available with the 0.5 version of Julia. Until then I want to experiment with the multi tasking features of Julia.

[barche]

Thanks for the suggestions! This was mostly intended as a proof-of-concept, but I'm having fun with it so far.

Note that d5883dd adds context properties. Setting these from Julia would notify the GUI to update. I was thinking of using that to run a simulation in the background and have the GUI update when new results are available, but that does indeed require threading. I'm now looking at QTimer to "break in" in the event loop. Maybe this can be combined with a spawned process somehow to accomplish GUI control of a background task.

[ufechner7]

It is interesting to read how the Ruby wrapper is doing it:
http://seanchas116.github.io/ruby-qml/
A kind of "cooperative" multitasking should already be possible.

Another helpful resource is the documentation of the Python bindings:
http://pyqt.sourceforge.net/Docs/PyQt5/qml.html

[barche]

I will start working on image support next, with the objective of displaying a plot in a QML element

[barche]

OK, there is now an interactive plot example, see:
https://github.com/barche/QML.jl/blob/master/example/plot.jl

[tbreloff]

Plots and QML? 💯

[barche]

Well, I'm not sure my use of Plots.jl is optimal, so any tips are welcome :)

Also, the image is transferred using writemime with PNG data (the QML item acts as a Julia Display), which is very general, but for a plot it would be better to draw directly to the pixel buffer somehow. Anyway, the example works in a satisfactory way, following window resizing and changing function parameters with sliders.

[tbreloff]

Maybe not optimal, but a great start! If I find time to add/improve, I
will.

On Friday, April 15, 2016, Bart Janssens [email protected] wrote:

Well, I'm not sure my use of Plots.jl is optimal, so any tips are welcome
:)

Also, the image is transferred using writemime with PNG data (the QML item
acts as a Julia Display), which is very general, but for a plot it would be
better to draw directly to the pixel buffer somehow. Anyway, the example
works in a satisfactory way, following window resizing and changing
function parameters with sliders.

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#7 (comment)

[ufechner7]

Now that QML 0.8 is released we might need a new roadmap...