Qt QML,它们确实有效,但在QML参考中没有智能感知。我可以实现智能感知吗?
pragma Singleton
import QtQuick 2.0
import QtQuick.Window 2.3
Item {
property int iMode: 0
property bool bSwapLeftRight: false
注册:
qmlRegisterSingletonType(QUrl(QLatin1String("qrc:/GlobalSettings.qml")), "ncs.global", 1, 0, "SingletonSettings" );
第二个例子;:
ctxt->setContextProperty("someModel", QVariant::fromValue(ownModel));
ctxt->setContextProperty("globalControl", QVariant::fromValue(globalControl.Get()));
首先,我使用QML实现IntelliSense,第二个是单身,我没有实现智能感知。计划通过这个枚举将一些c ++定义的枚举暴露给QML,但是当没有提供IntelliSense时会丢失值..
问题基本上是,Qt Quick和Creator是否支持单一类的IntelliSense?值得进一步调查吗?
添加更多细节,主要问题不是关于枚举,而是智能感知(自动完成):
A few snippets:
main.cpp:
//Regular Pointer
SomeModel* ownModel = new SomeModel();
//Custom Singleton implementation
GlobalControlSP globalControl = GlobalControl::GetInstance();
//I did not really want this line. GlobalControl should be singleton, how would this be threated?
qmlRegisterType<GlobalControl>("ncs.global", 1, 0, "Global");
//Registering a "Pragma Singleton" file, Intellisense do not work
qmlRegisterSingletonType(QUrl(QLatin1String("qrc:/GlobalSettings.qml")), "ncs.global", 1, 0, "SingletonSettings" );
QQmlApplicationEngine engine;
QQmlContext* ctxt = engine.rootContext();
//Regular context property, not singleton. Intellisense works
ctxt->setContextProperty("ownModel", QVariant::fromValue(ownModel));
//Registering the singleton as context property, Intellisense do not work
ctxt->setContextProperty("globalControl", QVariant::fromValue(globalControl.Get()));
engine.load(QUrl(QLatin1String("qrc:/main.qml")));
globalcontrol.h:
class GlobalControl : public QObject,
{
Q_OBJECT
Q_PROPERTY(QString backcolor READ backcolor NOTIFY backcolorChanged)
....
public:
GlobalControl(QObject *parent = nullptr);
QString backcolor() const { return m_backColor; }
....
enum EnButton
{
DEVICE_START,
DEVICE_IR,
.....
};
Q_ENUM(EnButton)
public slots:
void changeMode(int mode);
void buttonPressed(int button);
some qml file:
//This implementation works:
NcsButton {
property int valuent
id:ir
text: qsTr("IR")
width: 66 * widthScaling
Layout.row: 4
Layout.column: 1
fontColor: bIr ? valueColor : textColor
onClicked: {
globalControl.buttonPressed(Global.DEVICE_IR)
//This does not work:
NcsButton {
id:ir
text: qsTr("IR")
width: 66 * widthScaling
Layout.row: 4
Layout.column: 1
fontColor: bIr ? valueColor : textColor
onClicked: {
globalControl.buttonPressed(globalControl.DEVICE_IR)
答案 0 :(得分:0)
解决方案或解决方法:
对于QML定义的单例,将Qt编译器QML库添加到生成的文件
..\..\..\bin\qmlplugindump -relocatable ncs.global 1.0 > plugins.qmltypes
对于c ++注册的单身人士,制作一个&#34;假的&#34;普通类类型的指针。寄存器。要从同一个单例类中检索枚举,请创建一个UncreatableType:
GlobalControlSP globalControlOrig = GlobalControl::GetInstance();
GlobalControl* globalControl = globalControlOrig.Get();
ctxt->setContextProperty("globalControl", QVariant::fromValue(globalControl));
qmlRegisterUncreatableType<GlobalControl>("ncs.global", 1, 0, "Global", "Singleton");