Break Layout broken ?
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Hi,
Probably newcomer naivety. But I find that if I have say a QDialog, comprising 3 horizontal layouts, and I right-click the last, and choose Break Layout, so that I can add an additional element, then formatting of the other 2 horizontal layouts, breaks, in Qt Creator.
When I say breaks, formally the other 2 occupied the full width of the QDialog. But after, they shrink horizontally, to take up on-screen, just the space needed by their content.
I've tried WinMerge compare of the .UI file, before and after, to try and understand what Qt Creator has done, so I can undo it, but cannot fathom the changes.
I'm using the latest Qt, 5.10, downloaded and installed just a few days ago. I've searched the forum and google on this issue, and not mentioned, per se.
Best regards,
David
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Hi,
An update. After trying many options, I have managed to prevent the 2 horizontal layouts shrinking when I do a Break Layout on the third horizontal layout.
I don't know if my solution is an approved way, but for each widget in the 2 horizontal layouts, I have set minimumSize width and height to the actual values shown in geometry, rather than 0.
And, I have set maximumSize width and height to the same, rather than 16777215.
But now, another problem. I'll log that as Break Layout broken 2 ?
Best regards,
David
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Hi
Breaking a layouts always made contained layouts rescale to much smaller size for me when not a boxgrid.Are you sure it used to work differently ?
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Hi mrjj,
Thank you very much for your reply, much appreciated.
Well, I'm really new to Qt, just a few days, so I can't really say about matters working differently in the past.
I've only every seen the behaviour as described in my 2 posts to this thread.
Sounds like I need to give boxgrids a try.
I also have a related issue, per my 'Break Layout broken 2' post. Would you have any insights on that maybe ?
Must admit, I find the Qt requirement to have to 'Break Layout' to add elements a bit frustration. But maybe layout managers in other products are similar.
Best regards,
David
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@David-King said in Break Layout broken ?:
I find the Qt requirement to have to 'Break Layout' to add elements a bit frustration.
You don't need to break a layout to add a new item.
Just drag the new item onto your existing layout, and the item will be inserted into the layout.
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Ah, but only for 'leaf' items, within a layout.
But which I mean, I can copy Widget 2, and paste onto Horz Layout fine:
Horz Layout
Widget 1
Widget 2I then get:
Horz Layout
Widget 1
Widget 2
Widget 2_2But if I have eg the following, I can't copy Vert Layout, and paste onto Horz Layout:
Horz Layout
Vert Layout
Widget 1
Widget 2So I can't get the following.
Horz Layout
Vert Layout
Widget 1
Widget 2
Vert Layout_2
Widget 1_2
Widget 2_2At least, not without doing a Break Layout on Horz Layout first, to give me:
Vert Layout
Widget 1
Widget 2I can then copy-paste Vert Layout, to give me:
Vert Layout_2
Widget 1_2
Widget 2_2I can then multi-select Vert Layout, and Vert Layout_2, and choose layout horizontally, to reinstate the layout.
Problem is, after doing the above, my layout is broken, with all my Horz Layouts (I have 4 so far), laying on top of one other, all at the top of the QDialog.
How do I know that Break Layout is needed in the scenario described ?
Because Qt tells me so, via a dialogue it displays, saying that I need to do a Break Layout as described
On my list, to give boxgrids a try, to see if I get better mileage with..
Best regards,
David
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Hi
If you want to clone existing layouts ( to get more)
Hold down CTRL and drag to clone the selection. (layout and all) -
Ah, the forum has removed my indenting. Hope makes sense still. Intention was eg:
Horz Layout
indent Vert Layout
indent indent Widget 1
indent indent Widget 2Ie, nested layouts
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Hi
You can drag the layouts with CTRL
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Yo !
Thank you so much mrjj for CTRL drag !
I had to be careful I dropped in the right place, but it worked :-)
I'm sure CTRL drag mention is somewhere in the excellent Qt documentation -
@David-King
One thing i was like 2 years to discover.
You can drag a selection from the Form to the Widget list.
And then you can have it there as template. ( in the left side list, bottom) -
Thanks for the tip !
So is this post SOLVED I wonder ?
Well it's worked around, for sure, with CTRL-dragStill seems buggish that the layout is broken by a Break Layout, then a reversing of that
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@David-King
Well, depending on what you put in layout and kind of stuff will happen
when you break it.
It could be a bug but it does sounds normal to me.
The red layouts might become the size of what ever is it them and its minimumsize etc.
