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IlvValueTypeClass Class Reference

Base class for value types. More...

#include <ilviews/base/value.h>

Inherited by IlvValueAntialiasingModeTypeClass, IlvValueAnyTypeClass, IlvValueArcModeTypeClass, IlvValueBitmapTypeClass, IlvValueBooleanTypeClass, IlvValueDirectionTypeClass, IlvValueDoubleTypeClass, IlvValueEnumTypeClass, IlvValueFillRuleTypeClass, IlvValueFillStyleTypeClass, IlvValueFloatArrayTypeClass, IlvValueFloatTypeClass, IlvValueInterfaceTypeClass, IlvValueIntTypeClass, IlvValueMethodTypeClass, IlvValueNoTypeClass, IlvValueNullTypeClass, IlvValuePointArrayTypeClass, IlvValueResourceTypeClass, IlvValueStringArrayTypeClass, IlvValueStringTypeClass, IlvValueTimeTypeClass, IlvValueUIntArrayTypeClass, and IlvValueUIntTypeClass.

Public Member Functions

virtual IlInt compareValues (const IlvValue &v1, const IlvValue &v2) const
 Compares two values. More...
 
virtual void copy (IlvValue &dest, const IlvValue &src) const
 Copies a value. More...
 
virtual IlvValuecreateValue (const char *name=0) const
 Creates a new value for this type. More...
 
virtual void deleteValue (IlvValue &value) const
 Deletes the internals of a value. More...
 
virtual IlBoolean fromString (IlvValue &value, const char *string, IlAny arg=0) const
 Converts a string to a value of this type. More...
 
virtual const char * name () const
 Retrieves the name of this type. More...
 
virtual const char * toString (const IlvValue &value) const
 Creates a textual representation of a value of this type. More...
 

Static Public Member Functions

static IlvValueTypeClassGet (const char *name)
 Get a type instance by name. More...
 
static IlvValueTypeClass ** GetAll (IlUInt &count)
 Get all registered types. More...
 

Detailed Description

Base class for value types.

Library: views

This class handles the types that instances of IlvValue can hold.
There are several predefined subtypes of IlvValueTypeClass that let you manipulate all the basic types regularly used in Rogue Wave Views.
There is a unique instance of a type, and this instance is shared by all instances of IlvValue that have this type.

Member Function Documentation

virtual IlInt IlvValueTypeClass::compareValues ( const IlvValue v1,
const IlvValue v2 
) const
virtual

Compares two values.

Both value must have the type this.

Parameters
v1The first value to compare.
v2The second value to compare.
Returns
IlTrue if v1 and v2 are identical from this type's perspective.
virtual void IlvValueTypeClass::copy ( IlvValue dest,
const IlvValue src 
) const
virtual

Copies a value.

Parameters
destThe destination value object that is set to a copy of src.
srcThe source value.
virtual IlvValue* IlvValueTypeClass::createValue ( const char *  name = 0) const
virtual

Creates a new value for this type.

Parameters
nameThe name of the value to be created.
Returns
A new instance of IlvValue with the indicated name.
virtual void IlvValueTypeClass::deleteValue ( IlvValue value) const
virtual

Deletes the internals of a value.

If this type has stored information that needs cleanup, this member function is meant to do the job.

virtual IlBoolean IlvValueTypeClass::fromString ( IlvValue value,
const char *  string,
IlAny  arg = 0 
) const
virtual

Converts a string to a value of this type.

Parameters
valueThe value that is set from a conversion of string.
stringThe input string to be converted.
argAn argument that may be necessary for the conversion to succeed.
static IlvValueTypeClass* IlvValueTypeClass::Get ( const char *  name)
static

Get a type instance by name.

Parameters
nameThe name of the type to retrieve.
Returns
The instance of the indicated type.
static IlvValueTypeClass** IlvValueTypeClass::GetAll ( IlUInt count)
static

Get all registered types.

Parameters
countIs set to the number of returned types.
Returns
An array of count type instances. You must never modify or delete this array. This array is managed by an IlPoolOf_ILVOPENPAR_Pointer_ILVCLOSEPAR_.
virtual const char* IlvValueTypeClass::name ( ) const
virtual

Retrieves the name of this type.

Returns
The name of this type. You must never delete or modify this string.
virtual const char* IlvValueTypeClass::toString ( const IlvValue value) const
virtual

Creates a textual representation of a value of this type.

Parameters
valueThe value whose textual representation is requested.
Returns
A textual representation of value. You must never delete or modify this string.

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