Screen resolution and scalability
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Hi all,
I'm new here and very excited to join you guys, i wanted to know if there is a way to scale or set aspect ratios to scale my window with
different screen sizes like the 15, 10 and 7 inches screens without having to write one for each size of screens??
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@Edward_Abdelsayed
Hi and welcome :)
To make widgets automatically adjust size , you use layouts.
http://doc.qt.io/qt-5/layout.htmlYou can do it visually in Designer
http://doc.qt.io/qt-5/designer-layouts.htmlOverall, you define how they should scale. like minimum size and max size etc.
It takes a little bit to learn, but then you get scaling almost free.
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Thank you @mrjj is there a way to do it in Qt 4
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@Edward_Abdelsayed
Hi
Yes its 100% the same :)
http://doc.qt.io/qt-4.8/designer-layouts.html1Please use the Topic Tools button to mark as Solved and
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postimage.org can be used for screenshots.1 Replies
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@mrjj Is this solution applicable in the following context?
I made a Qt C++ Desktop application for Windows 10 (Visual Studio 2015): on the initial computer (2880x1800) the layout is very nice but for the second (1680x1050) all is wonky:- spacing between widgets is all wrong
- tables put lots of extra white space after columns (only 3 input columns)
- buttons at bottom of window no longer show-up...
Thanks.!
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@RingAndReed
Yes, sounds like you need a layout.
Did you use any layout?Update:
for the table , there is a function to make it use all space for the cells. its not layout related.view->horizontalHeader()->setStretchLastSection(true) to make the last column expand to free space.
view->horizontalHeader()->setResizeMode(QHeaderView::Stretch) to give columns the same width.2Please use the Topic Tools button to mark as Solved and
Upvote the answer(s) that helped you to solve the issue
postimage.org can be used for screenshots.
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@mrjj : no I did not ... I am very new to Qt C++.
I think, you answered before I edited my question (added 2 screenshots).
I will try the layouts as you suggest. Right now, I did not even account for scrollbars etc.
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@RingAndReed
Then you surely need at least one to make them fit mainwindow.
Also note the update regarding the table.Note2: in Designer, it shows layouts with the buttons/widgets in the left side.
Those are not the ones to use :)Right click and use the layout menu to apply layout.
Its a little bit hard at first so prepare to practice a bit.
There are many videos of using them.Note3:
To control if stuff get to small or too big,, you use
the MinimumSize and MaximumSize. Layout respect that.
You can also set policy telling if u want to be small as possible, use all space or how it should be.
