PythonQtPrivate Class Reference

internal PythonQt details More...

#include <PythonQt.h>

Inheritance diagram for PythonQtPrivate:

Public Types
enum	DecoratorTypes {   StaticDecorator = 1 , ConstructorDecorator = 2 , DestructorDecorator = 4 , InstanceDecorator = 8 ,   AllDecorators = 0xffff }

Public Member Functions
	PythonQtPrivate ()
	~PythonQtPrivate () override
void	setTaskDoneCallback (const PythonQtObjectPtr &callable)
PythonQtObjectPtr	checkAndRunCoroutine (const PythonQtObjectPtr &object)
	Runs the given coroutine (via asyncio), returns a scheduled task if it object is a coroutine.
PythonQtObjectPtr	createAsyncioFuture ()
	Creates a new asyncio.Future object.
const QStringList &	sharedLibrarySuffixes ()
	get the suffixes that are used for shared libraries
bool	isPythonQtObjectPtrMetaId (int id)
	returns if the id is the id for PythonQtObjectPtr
bool	isPythonQtSafeObjectPtrMetaId (int id)
	returns if the id is the id for PythonQtSafeObjectPtr
bool	isPythonQtAnyObjectPtrMetaId (int id)
	returns if the id is either PythonQtObjectPtr or PythonQtSafeObjectPtr
void	addWrapperPointer (void *obj, PythonQtInstanceWrapper *wrapper)
	add the wrapper pointer (for reuse if the same obj appears while wrapper still exists)
void	removeWrapperPointer (void *obj)
	remove the wrapper ptr again
void	shellClassDeleted (void *shellClass)
	called by destructor of shells to allow invalidation of the Python wrapper
void *	unwrapForeignWrapper (const QByteArray &classname, PyObject *obj)
	try to unwrap the given object to a C++ pointer using the foreign wrapper factories
bool	addParentClass (const char *typeName, const char *parentTypeName, int upcastingOffset)
	add parent class relation
void	addPolymorphicHandler (const char *typeName, PythonQtPolymorphicHandlerCB *cb)
	add a handler for polymorphic downcasting
PythonQtClassInfo *	lookupClassInfoAndCreateIfNotPresent (const char *typeName)
	lookup existing classinfo and return new if not yet present
void	removeSignalEmitter (QObject *obj)
	called when a signal emitting QObject is destroyed to remove the signal handler from the hash map
PyObject *	wrapQObject (QObject *obj)
	wrap the given QObject into a Python object (or return existing wrapper!)
PyObject *	wrapPtr (void *ptr, const QByteArray &name, bool passOwnership=false)
void	registerClass (const QMetaObject *metaobject, const char *package=nullptr, PythonQtQObjectCreatorFunctionCB *wrapperCreator=nullptr, PythonQtShellSetInstanceWrapperCB *shell=nullptr, PyObject *module=nullptr, int typeSlots=0)
	registers a QObject derived class to PythonQt (this is implicitly called by addObject as well)
void	registerCPPClass (const char *typeName, const char *parentTypeName=nullptr, const char *package=nullptr, PythonQtQObjectCreatorFunctionCB *wrapperCreator=nullptr, PythonQtShellSetInstanceWrapperCB *shell=nullptr, PyObject *module=nullptr, int typeSlots=0)
void	registerGlobalNamespace (const char *typeName, const char *package, PythonQtQObjectCreatorFunctionCB *wrapperCreator, const QMetaObject &metaObject, PyObject *module=nullptr)
	Same as above, but all enums of the created wrapper will also be added to the given package and to the "Qt" package.
void	registerQObjectClassNames (const QStringList &names)
void	addDecorators (QObject *o, int decoTypes)
	add a decorator object
PythonQtClassWrapper *	createNewPythonQtClassWrapper (PythonQtClassInfo *info, PyObject *module, const QByteArray &pythonClassName)
	helper method that creates a PythonQtClassWrapper object (returns a new reference)
PythonQtInstanceWrapper *	createNewPythonQtInstanceWrapper (QObject *obj, PythonQtClassInfo *info, void *wrappedPtr=nullptr)
	helper method that creates a PythonQtInstanceWrapper object and registers it in the object map
PythonQtClassInfo *	getClassInfo (const QMetaObject *meta)
	get the class info for a meta object (if available)
PythonQtClassInfo *	getClassInfo (const QByteArray &className)
	get the class info for a meta object (if available)
void	registerLazyClass (const QByteArray &name, const QByteArray &moduleToImport)
PythonQtObjectPtr	createModule (const QString &name, PyObject *pycode)
	creates the new module from the given pycode
PythonQtClassInfo *	currentClassInfoForClassWrapperCreation ()
	get the current class info (for the next PythonQtClassWrapper that is created) and reset it to NULL again
void	handleVirtualOverloadReturnError (const char *signature, const PythonQtMethodInfo *methodInfo, PyObject *result)
	called by virtual overloads when a python return value can not be converted to the required Qt type
PythonQtObjectPtr	pythonQtModule () const
	get access to the PythonQt module
PythonQt::ProfilingCB *	profilingCB () const
	returns the profiling callback, which may be NULL
QString	getSignature (PyObject *object)
	determines the signature of the given callable object (similar as pydoc)
bool	isMethodDescriptor (PyObject *object) const
	returns true if the object is a method descriptor (same as inspect.ismethoddescriptor() in inspect.py)
const QMetaObject *	getDynamicMetaObject (PythonQtInstanceWrapper *wrapper, const QMetaObject *prototypeMetaObject)
	get the dynamic meta object for the given wrapper. It will contain the signals/slots that have been added in Python
const QMetaObject *	setupDynamicMetaObjectChain (PythonQtClassWrapper *type, const QMetaObject *prototypeMetaObject)
	recursively creates the dynamic meta object chain down to the Qt class wrapper.
const QMetaObject *	buildDynamicMetaObject (PythonQtClassWrapper *type, const QMetaObject *prototypeMetaObject)
	builds and returns the dynamic meta object for the given type, derived from prototypeMetaObject.
int	handleMetaCall (QObject *object, PythonQtInstanceWrapper *wrapper, QMetaObject::Call call, int id, void **args)
	redirected from shell classes, tries to call the given meta call on the Python wrapper.
void	callMethodInPython (QMetaMethod &method, PythonQtInstanceWrapper *wrapper, void **args)
	calls the given method on Python function with same name.

Static Public Member Functions
static PyObject *	wrapMemoryAsBuffer (const void *data, Py_ssize_t size)
	create a read-only buffer object from the given memory
static PyObject *	wrapMemoryAsBuffer (void *data, Py_ssize_t size)
	create a read-write buffer object from the given memory
static PyObject *	createEnumValueInstance (PyObject *enumType, unsigned int enumValue)
	create a new instance of the given enum type with given value (returns a new reference)
static PyObject *	createNewPythonQtEnumWrapper (const char *enumName, PyObject *parentObject)
	helper that creates a new int derived class that represents the enum of the given name (returns a new reference)
static PyObject *	dummyTuple ()
	the dummy tuple (which is empty and may be used to detected that a wrapper is called from internal wrapper creation

Friends
class	PythonQt

Detailed Description

internal PythonQt details

Definition at line 657 of file PythonQt.h.

Member Enumeration Documentation

DecoratorTypes

enum PythonQtPrivate::DecoratorTypes

Enumerator
StaticDecorator
ConstructorDecorator
DestructorDecorator
InstanceDecorator
AllDecorators

Definition at line 665 of file PythonQt.h.

                      {
    StaticDecorator = 1,
    ConstructorDecorator = 2,
    DestructorDecorator = 4,
    InstanceDecorator = 8,
    AllDecorators = 0xffff
  };

Constructor & Destructor Documentation

PythonQtPrivate()

PythonQtPrivate::PythonQtPrivate

(

)

~PythonQtPrivate()

PythonQtPrivate::~PythonQtPrivate ( )

override

Member Function Documentation

addDecorators()

void PythonQtPrivate::addDecorators	(	QObject *	o,
		int	decoTypes
	)

add a decorator object

addParentClass()

bool PythonQtPrivate::addParentClass	(	const char *	typeName,
		const char *	parentTypeName,
		int	upcastingOffset
	)

add parent class relation

addPolymorphicHandler()

void PythonQtPrivate::addPolymorphicHandler	(	const char *	typeName,
		PythonQtPolymorphicHandlerCB *	cb
	)

add a handler for polymorphic downcasting

addWrapperPointer()

void PythonQtPrivate::addWrapperPointer	(	void *	obj,
		PythonQtInstanceWrapper *	wrapper
	)

add the wrapper pointer (for reuse if the same obj appears while wrapper still exists)

buildDynamicMetaObject()

const QMetaObject * PythonQtPrivate::buildDynamicMetaObject	(	PythonQtClassWrapper *	type,
		const QMetaObject *	prototypeMetaObject
	)

builds and returns the dynamic meta object for the given type, derived from prototypeMetaObject.

callMethodInPython()

void PythonQtPrivate::callMethodInPython	(	QMetaMethod &	method,
		PythonQtInstanceWrapper *	wrapper,
		void **	args
	)

calls the given method on Python function with same name.

checkAndRunCoroutine()

PythonQtObjectPtr PythonQtPrivate::checkAndRunCoroutine

(

const PythonQtObjectPtr &

object

)

Runs the given coroutine (via asyncio), returns a scheduled task if it object is a coroutine.

createAsyncioFuture()

PythonQtObjectPtr PythonQtPrivate::createAsyncioFuture

(

)

Creates a new asyncio.Future object.

createEnumValueInstance()

static PyObject * PythonQtPrivate::createEnumValueInstance ( PyObject *  enumType, unsigned int  enumValue  )

static

create a new instance of the given enum type with given value (returns a new reference)

createModule()

PythonQtObjectPtr PythonQtPrivate::createModule	(	const QString &	name,
		PyObject *	pycode
	)

creates the new module from the given pycode

createNewPythonQtClassWrapper()

PythonQtClassWrapper * PythonQtPrivate::createNewPythonQtClassWrapper	(	PythonQtClassInfo *	info,
		PyObject *	module,
		const QByteArray &	pythonClassName
	)

helper method that creates a PythonQtClassWrapper object (returns a new reference)

createNewPythonQtEnumWrapper()

static PyObject * PythonQtPrivate::createNewPythonQtEnumWrapper ( const char *  enumName, PyObject *  parentObject  )

static

helper that creates a new int derived class that represents the enum of the given name (returns a new reference)

createNewPythonQtInstanceWrapper()

PythonQtInstanceWrapper * PythonQtPrivate::createNewPythonQtInstanceWrapper	(	QObject *	obj,
		PythonQtClassInfo *	info,
		void *	wrappedPtr = nullptr
	)

helper method that creates a PythonQtInstanceWrapper object and registers it in the object map

currentClassInfoForClassWrapperCreation()

PythonQtClassInfo * PythonQtPrivate::currentClassInfoForClassWrapperCreation

(

)

get the current class info (for the next PythonQtClassWrapper that is created) and reset it to NULL again

dummyTuple()

static PyObject * PythonQtPrivate::dummyTuple ( )

static

the dummy tuple (which is empty and may be used to detected that a wrapper is called from internal wrapper creation

getClassInfo() [1/2]

PythonQtClassInfo * PythonQtPrivate::getClassInfo

(

const QByteArray &

className

)

get the class info for a meta object (if available)

getClassInfo() [2/2]

PythonQtClassInfo * PythonQtPrivate::getClassInfo

(

const QMetaObject *

meta

)

get the class info for a meta object (if available)

Referenced by PythonQtConvertListOfKnownClassToPythonList(), and PythonQtConvertPythonListToListOfKnownClass().

getDynamicMetaObject()

const QMetaObject * PythonQtPrivate::getDynamicMetaObject	(	PythonQtInstanceWrapper *	wrapper,
		const QMetaObject *	prototypeMetaObject
	)

get the dynamic meta object for the given wrapper. It will contain the signals/slots that have been added in Python

getSignature()

QString PythonQtPrivate::getSignature

(

PyObject *

object

)

determines the signature of the given callable object (similar as pydoc)

handleMetaCall()

int PythonQtPrivate::handleMetaCall	(	QObject *	object,
		PythonQtInstanceWrapper *	wrapper,
		QMetaObject::Call	call,
		int	id,
		void **	args
	)

redirected from shell classes, tries to call the given meta call on the Python wrapper.

handleVirtualOverloadReturnError()

void PythonQtPrivate::handleVirtualOverloadReturnError	(	const char *	signature,
		const PythonQtMethodInfo *	methodInfo,
		PyObject *	result
	)

called by virtual overloads when a python return value can not be converted to the required Qt type

isMethodDescriptor()

bool PythonQtPrivate::isMethodDescriptor

(

PyObject *

object

)

const

returns true if the object is a method descriptor (same as inspect.ismethoddescriptor() in inspect.py)

isPythonQtAnyObjectPtrMetaId()

bool PythonQtPrivate::isPythonQtAnyObjectPtrMetaId ( int  id )

inline

returns if the id is either PythonQtObjectPtr or PythonQtSafeObjectPtr

Definition at line 691 of file PythonQt.h.

{ return _PythonQtObjectPtr_metaId == id || _PythonQtSafeObjectPtr_metaId == id; }

isPythonQtObjectPtrMetaId()

bool PythonQtPrivate::isPythonQtObjectPtrMetaId ( int  id )

inline

returns if the id is the id for PythonQtObjectPtr

Definition at line 687 of file PythonQt.h.

{ return _PythonQtObjectPtr_metaId == id; }

isPythonQtSafeObjectPtrMetaId()

bool PythonQtPrivate::isPythonQtSafeObjectPtrMetaId ( int  id )

inline

returns if the id is the id for PythonQtSafeObjectPtr

Definition at line 689 of file PythonQt.h.

{ return _PythonQtSafeObjectPtr_metaId == id; }

lookupClassInfoAndCreateIfNotPresent()

PythonQtClassInfo * PythonQtPrivate::lookupClassInfoAndCreateIfNotPresent

(

const char *

typeName

)

lookup existing classinfo and return new if not yet present

profilingCB()

PythonQt::ProfilingCB * PythonQtPrivate::profilingCB ( ) const

inline

returns the profiling callback, which may be NULL

Definition at line 793 of file PythonQt.h.

{ return _profilingCB; }

pythonQtModule()

PythonQtObjectPtr PythonQtPrivate::pythonQtModule ( ) const

inline

get access to the PythonQt module

Definition at line 790 of file PythonQt.h.

{ return _pythonQtModule; }

registerClass()

void PythonQtPrivate::registerClass	(	const QMetaObject *	metaobject,
		const char *	package = nullptr,
		PythonQtQObjectCreatorFunctionCB *	wrapperCreator = nullptr,
		PythonQtShellSetInstanceWrapperCB *	shell = nullptr,
		PyObject *	module = nullptr,
		int	typeSlots = 0
	)

registers a QObject derived class to PythonQt (this is implicitly called by addObject as well)

registerCPPClass()

void PythonQtPrivate::registerCPPClass	(	const char *	typeName,
		const char *	parentTypeName = nullptr,
		const char *	package = nullptr,
		PythonQtQObjectCreatorFunctionCB *	wrapperCreator = nullptr,
		PythonQtShellSetInstanceWrapperCB *	shell = nullptr,
		PyObject *	module = nullptr,
		int	typeSlots = 0
	)

add a wrapper object for the given QMetaType typeName, also does an addClassDecorators() to add constructors for variants (ownership of wrapper is passed to PythonQt)

Make sure that you have done a qRegisterMetaType first, if typeName is a user type!

This will add a wrapper object that is used to make calls to the given classname typeName. All slots that take a pointer to typeName as the first argument will be callable from Python on a variant object that contains such a type.

registerGlobalNamespace()

void PythonQtPrivate::registerGlobalNamespace	(	const char *	typeName,
		const char *	package,
		PythonQtQObjectCreatorFunctionCB *	wrapperCreator,
		const QMetaObject &	metaObject,
		PyObject *	module = nullptr
	)

Same as above, but all enums of the created wrapper will also be added to the given package and to the "Qt" package.

registerLazyClass()

void PythonQtPrivate::registerLazyClass	(	const QByteArray &	name,
		const QByteArray &	moduleToImport
	)

register a class name that causes lazy loading of the moduleToImport when PythonQt encounters the type

registerQObjectClassNames()

void PythonQtPrivate::registerQObjectClassNames

(

const QStringList &

names

)

as an alternative to registerClass, you can tell PythonQt the names of QObject derived classes and it will register the classes when it first sees a pointer to such a derived class

removeSignalEmitter()

void PythonQtPrivate::removeSignalEmitter

(

QObject *

obj

)

called when a signal emitting QObject is destroyed to remove the signal handler from the hash map

removeWrapperPointer()

void PythonQtPrivate::removeWrapperPointer

(

void *

obj

)

remove the wrapper ptr again

setTaskDoneCallback()

void PythonQtPrivate::setTaskDoneCallback

(

const PythonQtObjectPtr &

callable

)

Set a callable that is used as the argument for the add_done_callback for the Task created by checkAndRunCoroutine

setupDynamicMetaObjectChain()

const QMetaObject * PythonQtPrivate::setupDynamicMetaObjectChain	(	PythonQtClassWrapper *	type,
		const QMetaObject *	prototypeMetaObject
	)

recursively creates the dynamic meta object chain down to the Qt class wrapper.

sharedLibrarySuffixes()

const QStringList & PythonQtPrivate::sharedLibrarySuffixes ( )

inline

get the suffixes that are used for shared libraries

Definition at line 684 of file PythonQt.h.

{ return _sharedLibrarySuffixes; }

shellClassDeleted()

void PythonQtPrivate::shellClassDeleted

(

void *

shellClass

)

called by destructor of shells to allow invalidation of the Python wrapper

unwrapForeignWrapper()

void * PythonQtPrivate::unwrapForeignWrapper	(	const QByteArray &	classname,
		PyObject *	obj
	)

try to unwrap the given object to a C++ pointer using the foreign wrapper factories

wrapMemoryAsBuffer() [1/2]

static PyObject * PythonQtPrivate::wrapMemoryAsBuffer ( const void *  data, Py_ssize_t  size  )

static

create a read-only buffer object from the given memory

wrapMemoryAsBuffer() [2/2]

static PyObject * PythonQtPrivate::wrapMemoryAsBuffer ( void *  data, Py_ssize_t  size  )

static

create a read-write buffer object from the given memory

wrapPtr()

PyObject * PythonQtPrivate::wrapPtr	(	void *	ptr,
		const QByteArray &	name,
		bool	passOwnership = false
	)

wrap the given ptr into a Python object (or return existing wrapper!) if there is a known QObject of that name or a known wrapper in the factory. If passOwnership == true, the ownership is passed to PythonQt, so the object will be deleted by PythonQt when the Python wrapper goes away.

Referenced by PythonQtConvertListOfKnownClassToPythonList().

wrapQObject()

PyObject * PythonQtPrivate::wrapQObject

(

QObject *

obj

)

wrap the given QObject into a Python object (or return existing wrapper!)

Friends And Related Symbol Documentation

PythonQt

friend class PythonQt

friend

Definition at line 891 of file PythonQt.h.

---

The documentation for this class was generated from the following file:

• PythonQt.h