Dec 29, 2010 · Qt has a flexible and powerful layout mechanism to handle view of desktop application's windows. But it is so flexible, that it nearly cannot be understood, when something goes wrong and needs fine-tuning. And so powerful, that it can beat anyone in their tries to overwhelm Qt's opinion of how form should look.

Aug 28, 2020 · Find the grid layout and make the QLabel and QCheckBox both at the same grid, for example, row 0 and column 0. So you want me to put both widgets in a single cell of a (presumably) 1x1 QGridLayout , right?

Aug 16, 2010 · According to the documentation, there needs to be a top level layout set. A top level layout is necessary to ensure that your widgets will resize correctly when its window is resized. To check if you have set a top level layout, preview your widget and attempt to resize the window by dragging the size grip.

Jan 20, 2023 · A single layout vs. layout+layout or parent+dummy+layout. It's not a big difference in a form like this one, but when you build larger UIs it adds up quite a lot. Since you mentioned I assume that it is something important that you wanted to highlighted me.

May 25, 2012 · The layout respects the sizeHint() and minimalSizeHint() of its children (not their size()). So you should reimplement these two virtual methods and return the size you want to force. Whenever your size hint changes, you should call updateGeometry() on your own widget to trigger an update of the layout where the widget is placed in. See ...

Jun 1, 2015 · You can add a spacer item, either on the outside of your horizontal layout, or inside your horizontal layout. If you add the spacer item inside the horizontal layout, you have to make sure you add your label widgets before the spacer item. Use the insertWidget() function to add your labels in this case.

Jul 4, 2021 · You have to assign the layout to the widget holding the LineEdit. Often that is the form. or some other widget. Then the layout offers adjustment of the widgets it holds in relation to its parent. So right-click beside the LineEdit (on the form / window) and use the Layout menu to assign a layout. Then you can adjust layouts setting via its ...

Nov 1, 2010 · Getting Parent Layout in Qt. 0. Accessing a layout during runtime. 2. Qt parent of layout? 0.

May 23, 2015 · When a layout is set on a widget the layout is re-parented and the widget becomes the parent of the layout. Also, all the widgets added to that layout (either before or after) are re-parented and the parent widget of the layout becomes their parent too. Note that the layout itself does not become the parent of the widgets added to it.

Apr 24, 2020 · I put on the central widget QHBoxLayout in Qt Designer. Then I put 2 QVBoxLayout's in this QHBoxLayout. They occupy the space of equal width, as can be seen in the Picture. The question is: how to make them of different width? For example, 1:3 (left QVBoxLayout width : right QVBoxLayout width). And how to make it in Qt Designer and from …