A button allows to collapse/fold vertically the content, so only the button is visible, all the contained layout is invisible. The previous button allows to expand/unfold it again to the size of the layout content. The expanding/collapsing is based on sizes (not on show/hide) to allows animation. Usable in QDesigner.
After creating your QVBoxLayout in Qt Designer, right-click on the background of your widget/dialog/window (not the QVBoxLayout, but the parent widget) and select Lay Out -> Lay Out in a Grid from the bottom of the context-menu. The QVBoxLayout should now stretch to fit the window and will resize automatically when the entire window is resized.
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A value of Qt::Horizontal or Qt::Vertical means that the widget can grow horizontally or vertically (i.e.
the horizontal or vertical policy is Expanding or MinimumExpanding ), whereas Qt::Horizontal | Qt::Vertical means that it can grow in both dimensions. See also horizontalPolicy () and verticalPolicy ().
10/6/2017 · …my app has a QPlainTextBox in a QHBoxLayout (in a QWidget). I’d like it to grow vertically with the Widget . I’ve read the Layout Management page, and I don’t see what I’m missing — vertical policy is Expanding , and maximum size is arbitrarily large.
Layout Management | Qt Widgets 5.15.2, Layout Management | Qt Widgets 5.15.2, Auto-expanding layout with Qt-Designer – Stack Overflow, Layout Management | Qt Widgets 5.15.2, Once you have add your layout with at least one widget in it, select your window and click the Update button of QtDesigner. The interface will be resized at the most optimized size and your layout will fit the whole window. Then when resizing the window, the layout will be.
There is something called the Widget Box in the Qt Designer. It contains a list of widgets separated by categories. Each category button can be clicked in order to expand and collapse the list below the button. You might want something like the Widget Box for one reason or another, to display your own collapsible list of items. Tree Widget, @SGaist. Thanks for the suggestion. In terms of the layouts and widgets I used in my example, it was a stripped down version of something I have already in my app framework – stripped down to try make a MCVE.. What I actually have is something like a building block which I use to create custom settings dialogs for various different applications.. I have a central window with a …
