QENUM is used to register an enum type so that it can be used in QML. To use QENUM, you need to declare the enum in your C++ class using the Q_ENUM macro. For example:
class MyObject : public QObject
{
Q_OBJECT
Q_PROPERTY(MyEnum enumValue READ enumValue NOTIFY valueChanged)
Q_ENUM(MyEnum)
public:
enum MyEnum {
Option1,
Option2,
Option3
};
MyEnum enumValue() const { return m_enumValue; }
signals:
void valueChanged();
private:
MyEnum m_enumValue;
};
In this example, we have declared an enum class called MyEnum and registered it using the QENUM macro. We have also declared a property in our class called "enumValue" of type MyEnum and registered it using the QPROPERTY macro.
To use this enum in QML, we can simply import our C++ class and access the enum as follows:
import MyNamespace 1.0
...
Dropdown {
model: Object.Option
}
In this code, we are using the MyNamespace class that we have imported and accessing the enum values using the dot notation (Object.Option). Dropdown is an example of QML element that uses an enum as a model.
Note that if you change the values of your enum class, you need to recompile your code and rerun qmake for the changes to take effect.
Please start posting anonymously - your entry will be published after you log in or create a new account. This space is reserved only for answers. If you would like to engage in a discussion, please instead post a comment under the question or an answer that you would like to discuss
Asked: 2023-05-05 18:44:32 +0000
Seen: 13 times
Last updated: May 05 '23
What is the method to get a printable output of a C++11 time_point?
What is the process of redefining a c++ macro with fewer parameters?
How can a list be sorted alphabetically within a console application?
How can boost c++11 be used to resolve the symlinks of a file path?
What distinguishes the jsonlite and rjson packages from each other at their core?
How can the issue of accessing a member within an address that is misaligned be resolved at runtime?
Does a C++ constructor get passed down through inheritance?
What is the difference between deallocating memory in C and deallocating memory in C++?