qqmlglobal_p.h File Reference

(3f57095a30743159ceace0ec39822795092540c7)

#include <private/qmetaobject_p.h>
#include <private/qqmlmetaobject_p.h>
#include <private/qqmltype_p.h>
#include <private/qtqmlglobal_p.h>
#include <QtQml/qqml.h>
#include <QtCore/qobject.h>

Include dependency graph for qqmlglobal_p.h:

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Go to the source code of this file.

Classes
class	QQmlValueTypeProvider
class	QQmlColorProvider
class	QQmlGuiProvider
class	QQmlApplication
class	QQmlApplicationPrivate
struct	QQmlSourceLocation

Macros
#define	DEFINE_BOOL_CONFIG_OPTION(name, var)
#define	qmlobject_connect(Sender, SenderType, Signal, Receiver, ReceiverType, Method)
	Connect Signal of Sender to Method of Receiver.
#define	qmlobject_disconnect(Sender, SenderType, Signal, Receiver, ReceiverType, Method)
	Disconnect Signal of Sender from Method of Receiver.
#define	IS_SIGNAL_CONNECTED(Sender, SenderType, Name, Arguments)

Functions
QT_BEGIN_NAMESPACE bool	qmlConvertBoolConfigOption (const char *v)
template<typename T, T(*)(const char *) Convert>
T	qmlGetConfigOption (const char *var)
Q_QML_EXPORT bool	qmlobject_can_cpp_cast (QObject *object, const QMetaObject *mo)
Q_QML_EXPORT bool	qmlobject_can_qml_cast (QObject *object, const QQmlType &type)
template<class T>
T	qmlobject_cast (QObject *object)
	This method is identical to qobject_cast<T>() except that it does not require lazy QMetaObjects to be built, so should be preferred in all QML code that might interact with QML built objects.
template<>
QQuickItem *	qmlobject_cast< QQuickItem * > (QObject *object)
void	QQml_setParent_noEvent (QObject *object, QObject *parent)
	Makes the object a child of parent.
Q_QML_EXPORT QQmlColorProvider *	QQml_setColorProvider (QQmlColorProvider *)
Q_QML_EXPORT QQmlColorProvider *	QQml_colorProvider ()
Q_QML_EXPORT QQmlGuiProvider *	QQml_setGuiProvider (QQmlGuiProvider *)
Q_AUTOTEST_EXPORT QQmlGuiProvider *	QQml_guiProvider ()

Macro Definition Documentation

DEFINE_BOOL_CONFIG_OPTION

#define DEFINE_BOOL_CONFIG_OPTION	(		name,
			var )

Value:

static bool name() \
{ \
    static const bool result = qmlGetConfigOption<bool, qmlConvertBoolConfigOption>(#var); \
    return result; \
}

Definition at line 42 of file qqmlglobal_p.h.

IS_SIGNAL_CONNECTED

#define IS_SIGNAL_CONNECTED	(		Sender,
			SenderType,
			Name,
			Arguments )

Value:

do { \
    QObject *sender = (Sender); \
    void (SenderType::*signal)Arguments = &SenderType::Name; \
    static QMetaMethod method = QMetaMethod::fromSignal(signal); \
    static int signalIdx = QMetaObjectPrivate::signalIndex(method); \
    return QObjectPrivate::get(sender)->isSignalConnected(signalIdx); \
} while (0)

Definition at line 164 of file qqmlglobal_p.h.

qmlobject_connect

#define qmlobject_connect	(		Sender,
			SenderType,
			Signal,
			Receiver,
			ReceiverType,
			Method )

Value:

do { \
    SenderType *sender = (Sender); \
    ReceiverType *receiver = (Receiver); \
    const char *signal = (Signal); \
    const char *method = (Method); \
    static int signalIdx = -1; \
    static int methodIdx = -1; \
    if (signalIdx < 0) { \
        Q_ASSERT((int(*signal) - '0') == QSIGNAL_CODE); \
        signalIdx = SenderType::staticMetaObject.indexOfSignal(signal+1); \
    } \
    if (methodIdx < 0) { \
        int code = (int(*method) - '0'); \
        Q_ASSERT(code == QSLOT_CODE || code == QSIGNAL_CODE); \
        if (code == QSLOT_CODE) \
            methodIdx = ReceiverType::staticMetaObject.indexOfSlot(method+1); \
        else \
            methodIdx = ReceiverType::staticMetaObject.indexOfSignal(method+1); \
    } \
    Q_ASSERT(signalIdx != -1 && methodIdx != -1); \
    QMetaObject::connect(sender, signalIdx, receiver, methodIdx, Qt::DirectConnection); \
} while (0)

Connect Signal of Sender to Method of Receiver.

Signal must be of type SenderType and Receiver of type ReceiverType.

Unlike QObject::connect(), this macro caches the lookup of the signal and method indexes. It also does not require lazy QMetaObjects to be built so should be preferred in all QML code that might interact with QML built objects.

QQuickTextControl *control;
QQuickTextEdit *textEdit;
qmlobject_connect(control, QQuickTextControl, SIGNAL(updateRequest(QRectF)),
                  textEdit, QQuickTextEdit, SLOT(updateDocument()));

Definition at line 64 of file qqmlglobal_p.h.

qmlobject_disconnect

#define qmlobject_disconnect	(		Sender,
			SenderType,
			Signal,
			Receiver,
			ReceiverType,
			Method )

Value:

do { \
    SenderType *sender = (Sender); \
    ReceiverType *receiver = (Receiver); \
    const char *signal = (Signal); \
    const char *method = (Method); \
    static int signalIdx = -1; \
    static int methodIdx = -1; \
    if (signalIdx < 0) { \
        Q_ASSERT((int(*signal) - '0') == QSIGNAL_CODE); \
        signalIdx = SenderType::staticMetaObject.indexOfSignal(signal+1); \
    } \
    if (methodIdx < 0) { \
        int code = (int(*method) - '0'); \
        Q_ASSERT(code == QSLOT_CODE || code == QSIGNAL_CODE); \
        if (code == QSLOT_CODE) \
            methodIdx = ReceiverType::staticMetaObject.indexOfSlot(method+1); \
        else \
            methodIdx = ReceiverType::staticMetaObject.indexOfSignal(method+1); \
    } \
    Q_ASSERT(signalIdx != -1 && methodIdx != -1); \
    QMetaObject::disconnect(sender, signalIdx, receiver, methodIdx); \
} while (0)

Disconnect Signal of Sender from Method of Receiver.

Signal must be of type SenderType and Receiver of type ReceiverType.

Unlike QObject::disconnect(), this macro caches the lookup of the signal and method indexes. It also does not require lazy QMetaObjects to be built so should be preferred in all QML code that might interact with QML built objects.

QQuickTextControl *control;
QQuickTextEdit *textEdit;
qmlobject_disconnect(control, QQuickTextControl, SIGNAL(updateRequest(QRectF)),
                     textEdit, QQuickTextEdit, SLOT(updateDocument()));

Definition at line 103 of file qqmlglobal_p.h.

Function Documentation

qmlConvertBoolConfigOption()

QT_BEGIN_NAMESPACE bool qmlConvertBoolConfigOption ( const char * v )

inline

Definition at line 29 of file qqmlglobal_p.h.

qmlGetConfigOption()

template<typename T, T(*)(const char *) Convert>

T qmlGetConfigOption

(

const char *

var

)

Definition at line 35 of file qqmlglobal_p.h.

qmlobject_can_cpp_cast()

bool qmlobject_can_cpp_cast	(	QObject *	object,
		const QMetaObject *	mo )

Definition at line 1100 of file qqmlglobal.cpp.

qmlobject_can_qml_cast()

bool qmlobject_can_qml_cast	(	QObject *	object,
		const QQmlType &	type )

Definition at line 1108 of file qqmlglobal.cpp.

qmlobject_cast()

template<class T>

T qmlobject_cast

(

QObject *

object

)

This method is identical to qobject_cast<T>() except that it does not require lazy QMetaObjects to be built, so should be preferred in all QML code that might interact with QML built objects.

QObject *object;
if (QQuickTextEdit *textEdit = qmlobject_cast<QQuickTextEdit *>(object)) {
    // ...Do something...
}

Definition at line 143 of file qqmlglobal_p.h.

qmlobject_cast< QQuickItem * >()

template<>

QQuickItem * qmlobject_cast< QQuickItem * > ( QObject * object )

inline

Definition at line 155 of file qqmlglobal_p.h.

QQml_colorProvider()

Q_AUTOTEST_EXPORT QQmlColorProvider * QQml_colorProvider

(

void

)

Definition at line 963 of file qqmlglobal.cpp.

QQml_guiProvider()

Q_AUTOTEST_EXPORT QQmlGuiProvider * QQml_guiProvider

(

void

)

Definition at line 1016 of file qqmlglobal.cpp.

QQml_setColorProvider()

Q_QML_EXPORT QQmlColorProvider * QQml_setColorProvider

(

QQmlColorProvider *

newProvider

)

Definition at line 945 of file qqmlglobal.cpp.

QQml_setGuiProvider()

Q_QML_EXPORT QQmlGuiProvider * QQml_setGuiProvider

(

QQmlGuiProvider *

newProvider

)

Definition at line 999 of file qqmlglobal.cpp.

QQml_setParent_noEvent()

void QQml_setParent_noEvent ( QObject * object, QObject * parent )

inline

Makes the object a child of parent.

Note that when using this method, neither parent nor the object's previous parent (if it had one) will receive ChildRemoved or ChildAdded events.

Definition at line 178 of file qqmlglobal_p.h.