get updated value of a UI qt widget?

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Rudi Hammad

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Mar 14, 2016, 12:17:28 PM3/14/16
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hello everyone,
so I have built this ui using qtDesigner and pyside . I launch the main window and I am trying to retrieve the values of my widgets, but it seems that they are not updated.
They remain with the values the have when the window open.
After a google search i saw in forum people saying to use .repaint() or .update() but it is not working for me.
For example I have  a widget named fingerLinks_spinBox, and I am trying the following:

controlMainWindow.ui.fingerLinks_spinBox.update()
controlMainWindow.ui.fingerLinks_spinBox.value()

(it is only 2 lines, so I didn´t use pasteBin, i hope it is ok)

the value is not updated. what I am doing wrong?

thanks




Marcus Ottosson

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Mar 14, 2016, 12:51:10 PM3/14/16
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Could you post a small example of the problem?

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Rudi Hammad

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Mar 14, 2016, 1:36:08 PM3/14/16
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sure. I have this code that create my UI

ui code

I want to query the value of the spine box jntNumber = self.ui.joints_spnBox.value()
so, having my environment setup okey, I try the following in the maya python interpreter :

import setupTools_UIs.createRibbon_UI as crUI; reload(crUI)
controlMainWindow = crUI.ControlMainWindow()
controlMainWindow.ui.joints_spnBox.update()
controlMainWindow.ui.joints_spnBox.value()

but the value that I get is now the one that I put in the ui spinebox. it is always the same.
I was trying to update the joints_spnBox, thinking that i would get the new value, but it doesn´t

Rudi Hammad

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Mar 14, 2016, 1:39:43 PM3/14/16
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sorry,I meant he value that I get is NOT the one that I put in the ui spinebox

Justin Israel

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Mar 14, 2016, 2:20:40 PM3/14/16
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So you are saying that when you click the link button, the value from the spinbox is never the one shown in the actual UI? I can understand how that could happen other than you querying a different object that the one you are editing.
You should not need to call update or repaint. Simply changing the value visually should allow you to pull the new value, programmatically.


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Rudi Hammad

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Mar 14, 2016, 3:18:22 PM3/14/16
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no,I mean that, I launch my UI. And then, what I want is to query the value of the spinbox of thatsame  UI I just opened. So I execute the following line in the script editor:
controlMainWindow.ui.joints_spnBox.value()


El lunes, 14 de marzo de 2016, 19:20:40 (UTC+1), Justin Israel escribió:

So you are saying that when you click the link button, the value from the spinbox is never the one shown in the actual UI? I can understand how that could happen other than you querying a different object that the one you are editing.
You should not need to call update or repaint. Simply changing the value visually should allow you to pull the new value, programmatically.


On Tue, 15 Mar 2016 6:39 AM Rudi Hammad <rudih...@gmail.com> wrote:
sorry,I meant he value that I get is NOT the one that I put in the ui spinebox


El lunes, 14 de marzo de 2016, 18:36:08 (UTC+1), Rudi Hammad escribió:
sure. I have this code that create my UI

ui code

I want to query the value of the spine box jntNumber = self.ui.joints_spnBox.value()
so, having my environment setup okey, I try the following in the maya python interpreter :

import setupTools_UIs.createRibbon_UI as crUI; reload(crUI)
controlMainWindow = crUI.ControlMainWindow()
controlMainWindow.ui.joints_spnBox.update()
controlMainWindow.ui.joints_spnBox.value()

but the value that I get is now the one that I put in the ui spinebox. it is always the same.
I was trying to update the joints_spnBox, thinking that i would get the new value, but it doesn´t

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Justin Israel

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Mar 14, 2016, 3:27:47 PM3/14/16
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Then I have no explanation for this behaviour. If you really are querying the same instance of the UI that is visually launched, you should get the currently displayed value.


On Tue, 15 Mar 2016 8:18 AM Rudi Hammad <rudih...@gmail.com> wrote:
no,I mean that, I launch my UI. And then, what I want is to query the value of the spinbox of thatsame  UI I just opened. So I execute the following line in the script editor:
controlMainWindow.ui.joints_spnBox.value()


El lunes, 14 de marzo de 2016, 19:20:40 (UTC+1), Justin Israel escribió:

So you are saying that when you click the link button, the value from the spinbox is never the one shown in the actual UI? I can understand how that could happen other than you querying a different object that the one you are editing.
You should not need to call update or repaint. Simply changing the value visually should allow you to pull the new value, programmatically.


On Tue, 15 Mar 2016 6:39 AM Rudi Hammad <rudih...@gmail.com> wrote:
sorry,I meant he value that I get is NOT the one that I put in the ui spinebox


El lunes, 14 de marzo de 2016, 18:36:08 (UTC+1), Rudi Hammad escribió:
sure. I have this code that create my UI

ui code

I want to query the value of the spine box jntNumber = self.ui.joints_spnBox.value()
so, having my environment setup okey, I try the following in the maya python interpreter :

import setupTools_UIs.createRibbon_UI as crUI; reload(crUI)
controlMainWindow = crUI.ControlMainWindow()
controlMainWindow.ui.joints_spnBox.update()
controlMainWindow.ui.joints_spnBox.value()

but the value that I get is now the one that I put in the ui spinebox. it is always the same.
I was trying to update the joints_spnBox, thinking that i would get the new value, but it doesn´t

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Marcus Ottosson

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Mar 14, 2016, 3:36:47 PM3/14/16
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I can't run your code with imports of your own personal modules.

If you make a small example, only containing this problem and nothing else, I can take a closer look.

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Rudi Hammad

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Mar 14, 2016, 4:13:25 PM3/14/16
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ok, I thought you just wanted to read it to cacht if something is weird in the code.
I hope you can run this

http://pastebin.com/32zXAMdR

by the way, my workflow is doing all in qtDesigner and the do the compileUi. So don´t really code the ui in pyside, I just generate the code doing the compileUi. It muuch easier, and I have many other thing to work one before getting in depth with pyside,
Am I loosing a lot pysde "power" using qtDesigner? should I forget about the qtDesigner and code the ui myself?
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Marcus Ottosson

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Mar 14, 2016, 4:26:04 PM3/14/16
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Thanks, that works.

The problem isn’t happening here. Running your code, and adding this to the bottom, works as expected.

myWin.ui.joints_spnBox.setValue(6)
assert myWin.ui.joints_spnBox.value() == 6

It sets the GUI to show the value 6, and retrieves it correctly. I’m on Windows, running Maya 2015.

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Rudi Hammad

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Mar 14, 2016, 5:04:47 PM3/14/16
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Thanks Marcus.it works. I was doing

controlMainWindow = ControlMainWindow()
controlMainWindow.ui.joints_spnBox.value()

so I wasn´t asking the value of the actual window widget as Justin said. I was querying the object ."joints_spnBox" inside of the...wait wait...what? I am confuse agian. why mine isn´t working?
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