I am running Qt 5.11.0
under Windows (I understand that it is very old but I cannot upgrade that embedded system).
For some reason, QML Menu
from QtQuickControls1
ignores its style
if app is a QGuiApplication
, but works if it is a QApplication
(from QtWidgets).
I also noticed that QApplication
uses Desktop
style by default, whereas QGuiApplication
uses Base
style instead and cannot load Desktop
style at all.
Is QtWidgets
dependency required to load QtQuickControls1
styles correctly, or am I missing something?
Why does QApplication
change QML styling at all?
main.cpp
#include <QtQml/qqmlapplicationengine.h>
#include <QtQml/qqmlcomponent.h>
#include <QtWidgets/QApplication>
int main(int argc, char ** argv) {
//QGuiApplication* app = new QApplication(argc, argv); //works
QGuiApplication* app = new QGuiApplication(argc, argv); //does not work
QQmlApplicationEngine engine;
engine.load(QUrl("file:///C:/main.qml"));
app->exec();
delete app;
return 0;
}
main.qml
import QtQuick 2.11
import QtQuick.Window 2.11
import QtQuick.Controls 1.4
import QtQuick.Controls.Styles 1.4
Window {
visible: true
Column{
CheckBox { text: "checkbox"}
ComboBox { model: ["combobox"] }
Button { text: "button"}
Button {
text: "custom"
menu: Menu {
style: MenuStyle { frame: Rectangle { color: "yellow" } }
MenuItem{text: "menuitem"}
}
}
}
}
Expected results:
- Menu should have yellow background.
Actual results:
CodePudding user response:
I tried your code with 5.15.7 and was able to see the yellow rectangle whether I used QApplication or QGuiApplication. So it may be a bug in version 5.11.