ValueProxy Class Reference

Base class for value proxies. Value proxy allows to decouple the displayed value from the values accessed within the program. For example, one may want to display Fahrenheit while still working with Celsius. More...

#include <valueProxy.h>

List of all members.

Public Types
typedef QObject	Superclass
Public Slots
void	setValue (double newValue)
void	setProxyValue (double newProxyValue)
Signals
void	valueChanged (double)
void	proxyValueChanged (double)
void	proxyAboutToBeModified ()
void	proxyModified ()
Public Member Functions
	ValueProxy (QObject *parent=0)
virtual double	proxyValueFromValue (double value) const =0
virtual double	valueFromProxyValue (double proxyValue) const =0
double	value () const
virtual double	proxyValue () const
Protected Member Functions
void	updateProxyValue ()
void	updateValue ()
Protected Attributes
QScopedPointer< ValueProxyPrivate >	d_ptr
Properties
double	value
double	proxyValue
Private Member Functions
	Q_DECLARE_PRIVATE (ValueProxy)
	Q_DISABLE_COPY (ValueProxy)

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Detailed Description

Base class for value proxies. Value proxy allows to decouple the displayed value from the values accessed within the program. For example, one may want to display Fahrenheit while still working with Celsius.

A ValueProxy can be used by connecting signal/slots to the value and proxyValue properties or by using directly the valueFromProxyValue and proxyValueFromValue functions.

Subclasses should reimplement the function proxyValueFromValue() and valueFromProxyValue().

See also:

LinearValueProxy

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Member Function Documentation

void ValueProxy::updateProxyValue

(

)

[protected]

Utilities function for subclasses. Can be called to update the value/proxyValue from the proxyValue/value.

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Property Documentation

double ValueProxy::proxyValue [read, write]

The proxy value holds the value transformed. If the value proxy is considered as a function, then the proxy value is the result of this function applied to value. The proxy value is updated if the value is changed.

double ValueProxy::value [read, write]

The value holds the current value. If the value proxy is considered as a function, then this function applied to the value is the proxy value. The value is updated if the proxy value is changed.

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

• K:/git-itom/sources/itom/itomWidgets/valueProxy.h
• K:/git-itom/sources/itom/itomWidgets/valueProxy.cpp