IlvDoubleMatrixItem Class Reference

Matrix item class. More...

#include <ilviews/gadgets/matrix.h>

Inheritance diagram for IlvDoubleMatrixItem:

List of all members.

Public Member Functions
	IlvDoubleMatrixItem (IlDouble value)
	Constructor.
virtual IlvAbstractMatrixItem *	copy () const
	Copies this object.
IlDouble	getDouble () const
	Returns the double-precision floating-point value stored in the matrix item.
virtual const char *	getFormat () const
	Returns the format used to display the double-precision floating-point value.
virtual const char *	getLabel () const
	Returns the label that identifies this matrix item.
void	setDouble (IlDouble value)
	Sets the double-precision floating-point value stored in the matrix item.
virtual void	setLabel (const char *, IlBoolean copy=IlTrue)
	Sets the label of the matrix item.
virtual void	write (IlvOutputFile &) const
	Writes an object description to a file.
Static Public Member Functions
static IlvAbstractMatrixItem *	readItem (IlvInputFile &, IlvDisplay *)
	Reads an object description from a file.

---

Detailed Description

Matrix item class.

Library: ilvadvgdt

Use this class to define a matrix item as a double-precision floating-point value.

See also:

IlvFilledDoubleMatrixItem, IlvMatrix

---

Constructor & Destructor Documentation

IlvDoubleMatrixItem::IlvDoubleMatrixItem

(

IlDouble

value

)

Constructor.

Initializes a new instance of the class IlvDoubleMatrixItem.

Parameters:

value

The double-precision floating-point value encapsulated by the item.

---

Member Function Documentation

virtual IlvAbstractMatrixItem* IlvDoubleMatrixItem::copy

(

)

const [virtual]

Copies this object.

Allocates and returns a copy of this object.

Returns:

A copy of the object.

See also:

IlvPredefinedMatrixItemIOMembers.

Reimplemented from IlvAbstractMatrixItem.

Reimplemented in IlvFilledDoubleMatrixItem.

IlDouble IlvDoubleMatrixItem::getDouble

(

)

const

Returns the double-precision floating-point value stored in the matrix item.

Returns:

The double-precision floating-point value stored in this matrix item.

See also:

setDouble

virtual const char* IlvDoubleMatrixItem::getFormat

(

)

const [virtual]

Returns the format used to display the double-precision floating-point value.

The default implementation returns f. You can override this member function in a subclass to modify the format.

Returns:

The format used to display the double-precision floating-point value of the matrix item.

virtual const char* IlvDoubleMatrixItem::getLabel

(

)

const [virtual]

Returns the label that identifies this matrix item.

Returns:

The label that identifies this matrix item. The returned string must not be deleted or modified.

See also:

setLabel

Reimplemented from IlvAbstractMatrixItem.

Reimplemented in IlvFilledDoubleMatrixItem.

static IlvAbstractMatrixItem* IlvDoubleMatrixItem::readItem	(	IlvInputFile &	file,
		IlvDisplay *	display
	)			[static]

Reads an object description from a file.

Reads an object description from the file input. It reads the information that was saved by the member function write to be able to create a new instance of this object. Usually, because of the availability of the constructor that expects an IlvInputFile, readItem should be equivalent to :

 IlvAbstractMatrixItem*
 MyClass::readItem(IlvInputFile& file, IlvDisplay* display)
 {
     return new MyClass(file, display);
 }

Parameters:

	file	The file to be read from.
	display	The display used to create the object.

See also:

DeclareMatrixItemInfoRO, DeclareMatrixItemInfo, IlvPredefinedMatrixItemIOMembers.

Warning:

[note] The readItem method is not capitalized like other static methods so that it is consistent with the write method.

Reimplemented from IlvAbstractMatrixItem.

Reimplemented in IlvFilledDoubleMatrixItem.

void IlvDoubleMatrixItem::setDouble

(

IlDouble

value

)

Sets the double-precision floating-point value stored in the matrix item.

Parameters:

value

The new double-precision floating-point value.

See also:

getDouble

virtual void IlvDoubleMatrixItem::setLabel	(	const char *	label,
		IlBoolean	copy = IlTrue
	)			[virtual]

Sets the label of the matrix item.

Parameters:

	label	The label of the matrix item.
	copy	A Boolean value specifying whether a label should be copied. If the value is IlFalse, then you must allocate some memory for the label because in any case the label characters are deleted from the memory by the IlvAbstractMatrixItem.

See also:

getLabel

Reimplemented from IlvAbstractMatrixItem.

Reimplemented in IlvFilledDoubleMatrixItem.

virtual void IlvDoubleMatrixItem::write

(

IlvOutputFile &

file

)

const [virtual]

Writes an object description to a file.

Writes out, in a file, the object description. This description contains all the information necessary to create an exact copy of this object by means of the member function readItem.

Parameters:

file

The name of the file to be written to.

See also:

DeclareMatrixItemInfoRO, DeclareMatrixItemInfo, IlvPredefinedMatrixItemIOMembers.

Reimplemented from IlvAbstractMatrixItem.

Reimplemented in IlvFilledDoubleMatrixItem.