set dialog size to fit contents after dynamically add widjets

[hindy.ilan@gmail.com]

Hi,
I created a dialog using the Qt designer
In the dialog I have several widgets with size policy fixed
And in the middle I have an empty Vertical box layout
all the controls (and the empty box layout) are in vertical box layout
In the application itself I add a customized widget (made of one line of 4 controls) to the empty vertical box layout
When I activated the dialog I saw that the empty (which is now filled) occupy so that it fills the dialog (means that there is vertical space between the widgets I added dynamically)
I want to set the dialog to the size of it's contents
The following is the screen shot
NormilizeDialog.jpg

[d_stranz]

Playing with the "Iris" data set, I see...

Your problem is probably in the way you have specified the layouts for your dialog. Take a look at the Qt Extension example. Your dialog is basically the same as this - different widgets, but still the same solutions regarding the layouts.

[hindy.ilan@gmail.com]

I am new in Qt (actually PyQt) and still trying to take it step by step
I will make my question clear

I designed a dialog in the designer which looks like this :
NormilizeDialog_question2_start.jpg

In the initialization I added widgets to an empty vertical box layout found in the middle of the window
After I resize it (manually) it looks like this:
NormilizeDialog_question2_end.jpg

The code of the dynamically created widgets is

class NormalizeDialog(QDialog, Ui_NormalizeDialog):
    """description of class"""
    def __init__(self, parent, inputMatrix):
        QDialog.__init__(self, parent)
        self.setupUi(self)
        self.inputMatrix = inputMatrix
        self.initNormilizeInput()
        self.setLayout(self.verticalLayout_2)
        self.adjustSize()
 
    def initNormilizeInput(self):
        for fieldName in self.inputMatrix[0]:
            normalizeInput = NormalizeInput(self, fieldName)
            normalizeInput.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Ignored)
            self.verticalLayout.addWidget(normalizeInput)

class NormalizeDialog(QDialog, Ui_NormalizeDialog):
    """description of class"""
    def __init__(self, parent, inputMatrix):
        QDialog.__init__(self, parent)
        self.setupUi(self)
        self.inputMatrix = inputMatrix
        self.initNormilizeInput()
        self.setLayout(self.verticalLayout_2)
        self.adjustSize()

    def initNormilizeInput(self):
        for fieldName in self.inputMatrix[0]:
            normalizeInput = NormalizeInput(self, fieldName)
            normalizeInput.setSizePolicy(QSizePolicy.Expanding, QSizePolicy.Ignored)
            self.verticalLayout.addWidget(normalizeInput)

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So what I am looking for is the following functionality:
- Calculate the height of all the widgets
- activate resize with this height

The code used to create the dynamic widgets is

Second request
Where can I learn (video preffered) about size policy ?

Thank,
Ilan