GammaRay::VariantHandler Namespace Reference

Variant conversion functions, extendable by plugins. More...

Typedefs
typedef QString(*	GenericStringConverter) (const QVariant &value, bool *ok)
	Callback type for generic string converters.

Functions
QVariant	decoration (const QVariant &value)
	Returns a value representing value in a itemview decoration role. More...
QString	displayString (const QVariant &value)
	Returns a human readable string version of the QVariant value. More...
template<typename T >
QString	displayString (T value)
	Returns a human readable string version of the given value. More...
void	registerGenericStringConverter (GenericStringConverter converter)
	Register a generic string conversion function for various variant types. More...
template<typename T , typename FuncT >
void	registerStringConverter (FuncT f)
	Register a string conversion function for a variant type. More...
void	registerStringConverter (int type, Converter< QString > *converter)
	Register a string conversion functions for a variant type. More...
QVariant	serializableVariant (const QVariant &value)
	Converts the given variant into an variant of a different type that can be transferred to another process. More...

Detailed Description

Variant conversion functions, extendable by plugins.

Function Documentation

decoration()

QVariant GammaRay::VariantHandler::decoration

(

const QVariant &

value

)

Returns a value representing value in a itemview decoration role.

Parameters

value

is a QVariant.

Returns

a QVariant itemview decoration role.

displayString() [1/2]

QString GammaRay::VariantHandler::displayString

(

const QVariant &

value

)

Returns a human readable string version of the QVariant value.

Converts to the variant type and prints the string value accordingly.

Parameters

value

is a QVariant.

Returns

a QString containing the human readable string.

displayString() [2/2]

template<typename T >

QString GammaRay::VariantHandler::displayString ( T  value )

inline

Returns a human readable string version of the given value.

Thihs is a convenience overload of the QVariant-based version above.

Returns

a QString containing the human readable string.

registerGenericStringConverter()

void GammaRay::VariantHandler::registerGenericStringConverter

(

GenericStringConverter

converter

)

Register a generic string conversion function for various variant types.

This can be used when you have a converter that can dynamically check if it can handle a given variant, and the types it can handle aren't known at compile time (example: QQmlListProperty).

Parameters

converter

The converter function. It's second parameter is used to indicate if the value could be handled.

registerStringConverter() [1/2]

template<typename T , typename FuncT >

void GammaRay::VariantHandler::registerStringConverter ( FuncT  f )

inline

Register a string conversion function for a variant type.

Template Parameters

T	The type for which to use this converter function.

registerStringConverter() [2/2]

void GammaRay::VariantHandler::registerStringConverter	(	int	type,
		Converter< QString > *	converter
	)

Register a string conversion functions for a variant type.

serializableVariant()

QVariant GammaRay::VariantHandler::serializableVariant

(

const QVariant &

value

)

Converts the given variant into an variant of a different type that can be transferred to another process.

This is most prominently needed for pointer types, e.g. const QMatrix4x4* -> QMatrix4x4, primarily for the fancy display delegate on the client side.