All Questions
56 questions
276
votes
5
answers
268k
views
Auto-expanding layout with Qt-Designer
I'm using the Qt Designer.
I want to create a QVBoxLayout which will automatically expand to fill the whole window.
The layout of the QVBoxLayout remains fixed.
How can I cause the QVBoxLayout to ...
- 33.5k
58
votes
10
answers
58k
views
How to make a Qt widget invisible without changing the position of the other Qt widgets?
I've got a window full of QPushButtons and QLabels and various other fun QWidgets, all layed out dynamically using various QLayout objects... and what I'd like to do is occasionally make some of those ...
- 72.9k
41
votes
4
answers
94k
views
Qt Layout on QMainWindow
I designed a QMainWindow with QtCreator's designer. It consists of the default central widget (a QWidget) which contains a QVBoxLayout with all the other widgets in it. Now everything I want, is that ...
- 3,362
4
votes
3
answers
7k
views
How to remove Qt widget (with layout) space
I have written a program that uses widgets as container (for other widgets). Because the contents of the container varies along the program life, the container widget has a layout associated to it so ...
- 973
4
votes
3
answers
4k
views
Resize QMainWindow to minimal size after content of layout changes
I'm using a subclass of QMainWindow, in which I declared a central widget. This widget contains, among other things, a QGridLayout, which holds a set of buttons. The amount of buttons can grow or ...
- 4,239
23
votes
2
answers
75k
views
About deleting, removing widgets and layouts in Qt 4
(I use Qt 4.7, Windows 7, 64bit).
I created a custom table. Each row is a horizontal layout with widgets.
The rows are kept in a QList for easy access, and the children too. The rows are also added ...
- 2,543
20
votes
2
answers
39k
views
Setting text on a QLabel in a layout, doesn't resize
Using the designer in Qt creator I have created a dialog that contains various widgets in a vertical layout. One of the widgets is a QLabel with word wrap set to true. The text for the QLabel is set ...
- 27.6k
18
votes
2
answers
22k
views
QWidget::setLayout: Attempting to set QLayout "" on Widget "", which already has a layout
I'm trying to set the layout of a widget manually through code (not in Designer), but I'm doing something wrong, because I get this warning:
QWidget::setLayout: Attempting to set QLayout "" on ...
- 211
8
votes
1
answer
6k
views
Fix tab order after inserting widgets in a layout in QT
I have a custom list implementation (a subclass of QWidget) in QT 5.5. The elements of the list are organized using a QVBoxLayout. At runtime, elements (which are also QWidgets) can be dynamically ...
- 2,303
48
votes
10
answers
31k
views
Hiding Qt widget and keeping widget space
In a simple form I made a few buttons and put a horizontal layout. When mouse leaves the area one of the buttons, the last one, should be hidden. Using button->hide() it works, but all the buttons ...
- 481
13
votes
3
answers
18k
views
How to align children in a QHBoxLayout Left, Center and Right
I have a QHBoxlayout with children set up as follows:
QHBoxlayout h = new QHBoxlayout();
QLLabel leftLabel = new QLLabel("Left");
QLLabel centerLabel = new QLLabel("Center");
QHBoxlayout ...
- 6,624
12
votes
3
answers
13k
views
How do I overlay widgets?
I want to create some widgets and place them out-of-layout, but rather tweak their size and position when some other widget's geometry is changed.
Something like the buttons on the screenshot:
- 5,735
9
votes
3
answers
9k
views
Use the same widget in two different layouts in Qt
I would like to use the same widget in two different layouts in Qt. Here is my code:
QWidget *myWidget = new QWidget;
QFormLayout *layout1 = new QFormLayout;
layout1->addWidget(myWidget);
...
- 8,821
8
votes
1
answer
3k
views
Custom Layout in Qt Designer
Is there anyway that we can have Custom Layouts e.g. as defined at
https://doc.qt.io/archives/qt-4.7/examples-layouts.html
inside the Qt Designer ?
What would be the process to add such custom ...
- 397
4
votes
1
answer
11k
views
Qt layouts - Keep widget aspect ratio while resizing [duplicate]
I want to keep an aspect ratio of 16/9 on a QGroupBox (the one on the left on the screenshot below). For the tests I made a simple program with 4 groupboxes in a vertical layout, all in an horizontal ...
- 1,731