Vision: Best way to get the Window's rootContainer object from a component

Ignition
1

Say I have a reference to a component:
obj = self.source #let self be a PMIEasyChart

What’s an efficient way to get the containing Window’s rootContainer object from this?
I can just do a recursive getParent, but I’m hoping there’s a better way

2 
from com.inductiveautomation.ignition.client.util.gui import IgnitionSwingUtilities
from com.inductiveautomation.vision.api.client.components.model import TopLevelContainer

IgnitionSwingUtilities.getAncestorOfClass(TopLevelContainer, obj)

That’s exactly the method used internally.

1 Like
3

Is there any way to get this to work from a template? It seems to only traverse to the top-level of that template, but not to the root container of the window

4

Replace TopLevelContainer (and the import) with com.inductiveautomation.factorypmi.application.FPMIWindow.

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5

Thanks Paul! Always so helpful, much appreciated.

6

You can also use:
system.gui.getParentWindow(event).rootContainer
to get the Window’s root container from within a template from an event action.

7

Hmm, I’m trying to use this to get some custom properties defined on a window root container, but for the life of me I can’t work out what’s going wrong…

I have this:

from com.inductiveautomation.ignition.client.util.gui import IgnitionSwingUtilities
from com.inductiveautomation.vision.api.client.components.model import TopLevelContainer

RC = IgnitionSwingUtilities.getAncestorOfClass(TopLevelContainer, obj).rootContainer

print RC.mY

But I get an error saying that mY is not an attribute of RC.

Yet, I’ve used this to successfully read the value in:

RC2 = event.source.parent
print RC2.mY

This may show my lack of understanding of Python, but I also tried this which resulted in TRUE:
print RC == RC2

So I can’t see what the issue is…

8

You are encountering Ignition's spotty application of its PyComponentWrapper, which is responsible for making custom properties act like regular properties. For more details, see this thread:

TL/DR: Install a current version of my Simulation Aids module.

1 Like
9

Thanks Phil, I’ve downloaded your Simulation Aids and installed it, and now it’s working :slight_smile: Cheers!