Re: [Interest] QVariant compare operator
On Friday, 17 April 2020 19:15:56 -03 evilruff wrote: > Hi,Recently I was debugging one of my project and ended up with something > which really surprise me.Are there any special reasons why QVariant compare Relational comparisons with QVariant are deprecated in 5.15 and will be removed because they are a misfeaure. Redesign your code so your question does not need to be asked. -- Thiago Macieira - thiago.macieira (AT) intel.com Software Architect - Intel System Software Products ___ Interest mailing list Interest@qt-project.org https://lists.qt-project.org/listinfo/interest
[Interest] QVariant compare operator
Hi,Recently I was debugging one of my project and ended up with something which really surprise me.Are there any special reasons why QVariant compare < not fully cover appropriate operators from other Qt classes.For example QByteArray has own operator < but within QVariant switch QByteArray type just defaults to toString() which for QByteArray is toUtf8() leads to fact that if you have:QByteArray a,b;Knowning that a < b is true, QVariant(a) < QVariant(b) may be false..Thats really really inconvinient especially working with ModelView concept which is QVariant based..Sort of workaround might be to allow toString custom replacing for Qt classes but still I will really appreceate if somebody explains me reasons for such strange concept to implement own comparasion within QVariant rather then using already existing operators.RegardsYuriОтправлено со смартфона Samsung Galaxy.___ Interest mailing list Interest@qt-project.org https://lists.qt-project.org/listinfo/interest
Re: [Interest] Getting source url of QML composite component from C++
Hi all,
I am working on a tool to generate C# bindings for QML components defined
in .qml files,
and have hit a snag: How do I determine the source URL of a QML component
that is
used as the type of a QML property.
Example.qml:
import "./dirwithqmldir"
Item {
// Comes from "dirwithqmldir/OtherQmlItem.qml"
property OtherQmlItem myprop
}
When I inspect the QMetaObject that gets generated for an instance of this
Item,
the "myprop" property will have a UserType that is named
"OtherQmlItem_QMLTYPE2".
The registered Qt meta type has no meta object itself.
I am desperately trying to get at the source url of the underlying QML
component,
but haven't found a working way.
I see that the QQMLEnginePrivate has the following field, which would have
what I need,
but it's even private in there:
QHash m_compositeTypes;
Are there any other ways of getting the source url given a meta type id
(and associated QQMLEngine, if needed)?
Best Regards
Sebastian
___
Interest mailing list
Interest@qt-project.org
https://lists.qt-project.org/listinfo/interest
Re: [Interest] Qt3D performance, and development resources
Thanks to all for the interesting C++ Qt3D links! I long wanted to play with Qt3D in C++. RHI supporting all major 3D APIs makes it really attractive. Christoph Feck ___ Interest mailing list Interest@qt-project.org https://lists.qt-project.org/listinfo/interest
