juce::ValueTreePropertyWithDefault Class Reference

Detailed Description

This class acts as a wrapper around a property inside a ValueTree.

If the property inside the ValueTree is missing it will return a default value, which can be specified in the constructor or by calling setDefault().

Inheritance diagram for juce::ValueTreePropertyWithDefault:

Public Member Functions
	ValueTreePropertyWithDefault ()=default
	Creates an uninitialised ValueTreePropertyWithDefault object.
	ValueTreePropertyWithDefault (ValueTree &tree, const Identifier &propertyID, UndoManager *um)
	Creates a ValueTreePropertyWithDefault object for the specified property.
	ValueTreePropertyWithDefault (ValueTree &tree, const Identifier &propertyID, UndoManager *um, var defaultToUse)
	Creates an ValueTreePropertyWithDefault object for the specified property.
	ValueTreePropertyWithDefault (ValueTree &tree, const Identifier &propertyID, UndoManager *um, var defaultToUse, StringRef arrayDelimiter)
	Creates a ValueTreePropertyWithDefault object for the specified property.
	ValueTreePropertyWithDefault (const ValueTreePropertyWithDefault &other)
	Creates a ValueTreePropertyWithDefault object from another ValueTreePropertyWithDefault object.
	~ValueTreePropertyWithDefault () override
	Destructor.
var	get () const noexcept
	Returns the current value of the property.
Value	getPropertyAsValue ()
	Returns the current property as a Value object.
var	getDefault () const
	Returns the current default value.
void	setDefault (const var &newDefault)
	Sets the default value to a new var.
bool	isUsingDefault () const
	Returns true if the property does not exist in the referenced ValueTree.
void	resetToDefault () noexcept
	Removes the property from the referenced ValueTree.
ValueTreePropertyWithDefault &	operator= (const var &newValue)
	Sets the property and returns the new ValueTreePropertyWithDefault.
void	setValue (const var &newValue, UndoManager *undoManagerToUse)
	Sets the property.
void	referTo (ValueTree tree, const Identifier &property, UndoManager *um)
	Makes the ValueTreePropertyWithDefault refer to the specified property inside the given ValueTree.
void	referTo (ValueTree tree, const Identifier &property, UndoManager *um, var defaultVal)
	Makes the ValueTreePropertyWithDefault refer to the specified property inside the given ValueTree.
void	referTo (ValueTree tree, const Identifier &property, UndoManager *um, var defaultVal, StringRef arrayDelimiter)
	Makes the ValueTreePropertyWithDefault refer to the specified property inside the given ValueTree.
ValueTree &	getValueTree () noexcept
	Returns a reference to the ValueTree containing the referenced property.
Identifier &	getPropertyID () noexcept
	Returns the property ID of the referenced property.
const Identifier &	getPropertyID () const noexcept
	Returns the property ID of the referenced property.
UndoManager *	getUndoManager () noexcept
	Returns the UndoManager that is being used.
ValueTreePropertyWithDefault &	operator= (const ValueTreePropertyWithDefault &other)

Public Attributes
std::function< void()>	onDefaultChange
	You can assign a lambda to this callback and it will called when the default value is changed.

Constructors and Destructors

ValueTreePropertyWithDefault() [1/5]

juce::ValueTreePropertyWithDefault::ValueTreePropertyWithDefault ( )

default

Creates an uninitialised ValueTreePropertyWithDefault object.

Initialise it using one of the referTo() methods.

Referenced by operator=(), operator=(), and ValueTreePropertyWithDefault().

ValueTreePropertyWithDefault() [2/5]

juce::ValueTreePropertyWithDefault::ValueTreePropertyWithDefault	(	ValueTree &	tree,
		const Identifier &	propertyID,
		UndoManager *	um )

Creates a ValueTreePropertyWithDefault object for the specified property.

The default value will be an empty var.

References referTo(), and juce::tree.

ValueTreePropertyWithDefault() [3/5]

juce::ValueTreePropertyWithDefault::ValueTreePropertyWithDefault	(	ValueTree &	tree,
		const Identifier &	propertyID,
		UndoManager *	um,
		var	defaultToUse )

Creates an ValueTreePropertyWithDefault object for the specified property.

The default value will be defaultToUse.

References referTo(), and juce::tree.

ValueTreePropertyWithDefault() [4/5]

juce::ValueTreePropertyWithDefault::ValueTreePropertyWithDefault	(	ValueTree &	tree,
		const Identifier &	propertyID,
		UndoManager *	um,
		var	defaultToUse,
		StringRef	arrayDelimiter )

Creates a ValueTreePropertyWithDefault object for the specified property.

The default value will be defaultToUse.

Use this constructor if the underlying var object being controlled is an array and it will handle the conversion to/from a delimited String that can be written to XML format.

References referTo(), and juce::tree.

ValueTreePropertyWithDefault() [5/5]

juce::ValueTreePropertyWithDefault::ValueTreePropertyWithDefault

(

const ValueTreePropertyWithDefault &

other

)

Creates a ValueTreePropertyWithDefault object from another ValueTreePropertyWithDefault object.

References ValueTreePropertyWithDefault().

~ValueTreePropertyWithDefault()

juce::ValueTreePropertyWithDefault::~ValueTreePropertyWithDefault ( )

override

Destructor.

Member Functions

get()

var juce::ValueTreePropertyWithDefault::get ( ) const

noexcept

Returns the current value of the property.

If the property does not exist this returns the default value.

References isUsingDefault().

getPropertyAsValue()

Value juce::ValueTreePropertyWithDefault::getPropertyAsValue

(

)

Returns the current property as a Value object.

getDefault()

var juce::ValueTreePropertyWithDefault::getDefault

(

)

const

Returns the current default value.

setDefault()

void juce::ValueTreePropertyWithDefault::setDefault

(

const var &

newDefault

)

Sets the default value to a new var.

isUsingDefault()

bool juce::ValueTreePropertyWithDefault::isUsingDefault

(

)

const

Returns true if the property does not exist in the referenced ValueTree.

Referenced by get().

resetToDefault()

void juce::ValueTreePropertyWithDefault::resetToDefault ( )

noexcept

Removes the property from the referenced ValueTree.

operator=() [1/2]

ValueTreePropertyWithDefault & juce::ValueTreePropertyWithDefault::operator=

(

const var &

newValue

)

Sets the property and returns the new ValueTreePropertyWithDefault.

This will modify the property in the referenced ValueTree.

References setValue(), and ValueTreePropertyWithDefault().

setValue()

void juce::ValueTreePropertyWithDefault::setValue	(	const var &	newValue,
		UndoManager *	undoManagerToUse )

Sets the property.

This will modify the property in the referenced ValueTree.

References juce::var::getArray().

Referenced by operator=().

referTo() [1/3]

void juce::ValueTreePropertyWithDefault::referTo	(	ValueTree	tree,
		const Identifier &	property,
		UndoManager *	um )

Makes the ValueTreePropertyWithDefault refer to the specified property inside the given ValueTree.

The default value will be an empty var.

References juce::tree.

Referenced by ValueTreePropertyWithDefault(), ValueTreePropertyWithDefault(), and ValueTreePropertyWithDefault().

referTo() [2/3]

void juce::ValueTreePropertyWithDefault::referTo	(	ValueTree	tree,
		const Identifier &	property,
		UndoManager *	um,
		var	defaultVal )

Makes the ValueTreePropertyWithDefault refer to the specified property inside the given ValueTree.

The default value will be defaultVal.

References juce::tree.

referTo() [3/3]

void juce::ValueTreePropertyWithDefault::referTo	(	ValueTree	tree,
		const Identifier &	property,
		UndoManager *	um,
		var	defaultVal,
		StringRef	arrayDelimiter )

Makes the ValueTreePropertyWithDefault refer to the specified property inside the given ValueTree.

The default value will be defaultVal.

References juce::tree.

getValueTree()

ValueTree & juce::ValueTreePropertyWithDefault::getValueTree ( )

noexcept

Returns a reference to the ValueTree containing the referenced property.

getPropertyID() [1/2]

Identifier & juce::ValueTreePropertyWithDefault::getPropertyID ( )

noexcept

Returns the property ID of the referenced property.

getPropertyID() [2/2]

const Identifier & juce::ValueTreePropertyWithDefault::getPropertyID ( ) const

noexcept

Returns the property ID of the referenced property.

getUndoManager()

UndoManager * juce::ValueTreePropertyWithDefault::getUndoManager ( )

noexcept

Returns the UndoManager that is being used.

operator=() [2/2]

ValueTreePropertyWithDefault & juce::ValueTreePropertyWithDefault::operator=

(

const ValueTreePropertyWithDefault &

other

)

References ValueTreePropertyWithDefault().

Member Data Documentation

onDefaultChange

std::function<void()> juce::ValueTreePropertyWithDefault::onDefaultChange

You can assign a lambda to this callback and it will called when the default value is changed.

See also

setDefault