On 28 April 2020 at 12:05:54, Jonathan Purol (cont...@folling.de
<mailto:cont...@folling.de>) wrote:
Yesterday however I put my hands on trying to implement my first
custom widget.
The item in question is what I would describe as a "Tag Textfield".
[…]
The last approach seemed rather clever, and it worked pretty well. I
could put widgets into the textfield and align them at the left.
First I tried to do this manually, then I opted for an HBoxLayout.
Sorry, I don’t really have a solution for Qt Widgets. But is
QHBoxLayout really the best pick there? I would go for a “flow”
layout, like the QML ‘Flow’ positioner (but you’d have to make it
yourself). In this way your tags can wrap correctly according to
widget’s width.
In fact this is what I did in my QML Tag Edit widget
(https://github.com/fferri/QtQuick-TagsEditItem) maybe this is the
shoddy one you said you already found :-D
I didn’t put too much effort in it, and it has some minor issues, as
it can be seen from the screenshot. But the implementation is very
simple, so one can easily pick up from that and extend it. Maybe also
fixing those positioning issues is a one-liner fix (if anyone wants to
contribute a fix… PRs are welcome).
Maybe you can copy and adapt the implementation to Qt Widgets.
Cheers,
Federico Ferri
Hi Jonathon,
For some reason, I didn't receive your original post.
As a starting point, I agree with Federico and suggest using the flow
layout given in the Qt Layout examples
qthelp://org.qt-project.qtwidgets.5127/qtwidgets/qtwidgets-layouts-flowlayout-example.html
Use a separate QLabel for each tag, and a single QLineEdit with
clearButtonEnabled=true that is initially hidden. In each label's
onClick, hide the label and insert the edit with the same text
immediately after it in the layout. When the focus leaves the edit, if
there is text in the edit, put the text back into the adjacent hidden
label and show the label, otherwise delete the label. Then hide the
edit box. Ensure there is always an empty label to click on at the end.
Regards, Tony
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