IlvStyleSheet Class Reference

Holds a style sheet. More...

#include <ilviews/base/stylesheet.h>

Public Member Functions
	IlvStyleSheet (const char *name)
	Initializes a new instance of the IlvStyleSheet class. More...
virtual	~IlvStyleSheet ()
	Destructor. More...
virtual const char *	getName () const
	Returns the name of this style sheet. More...
virtual const char *	getStylingTechnology () const =0
	Returns a string that identifies the styling technology of the current style sheet. More...
void	lock ()
	Increments the reference count by 1.
virtual IlBoolean	read (std::istream &stream)=0
	Reads a style sheet content from the specified input stream. More...
virtual IlBoolean	setContent (const char *content)=0
	Sets the content of this style sheet. More...
void	unLock ()
	Decrements the reference count by 1. More...

Detailed Description

Holds a style sheet.

Library: xviews or winviews or mviews (mutually exclusive)

A style sheet can be attached to one or several IlvStylist in order to impact the aspect of the IlvStylable objects they control. Typically, an application will attach a style sheet to a IlvGadgetContainer to provide a style to the controls it stores.

A style sheet holds a set of Styles. A style is a set of graphical resources that impact a set of objects called Stylable.

Note that IlvStyleSheet are tracked with reference counting: a counter is increased when this style sheet is attached to a IlvStylist. This counter is decreased when the style sheet is detached from the stylist. If the object's reference count reaches zero, the style sheet is destroyed.

See also

IlvStylist::addStyleSheet().

Constructor & Destructor Documentation

IlvStyleSheet()

IlvStyleSheet::IlvStyleSheet

(

const char *

name

)

Initializes a new instance of the IlvStyleSheet class.

Parameters

name	The name of this style sheet. If the implementation of this class for a given styling technology (such as CSS) uses it, this string is copied. Otherwise, this parameter is ignored.

See also

getName().

~IlvStyleSheet()

virtual IlvStyleSheet::~IlvStyleSheet ( )

virtual

Destructor.

Releases all the memory referenced by this instance.

Member Function Documentation

getName()

virtual const char* IlvStyleSheet::getName ( ) const

virtual

Returns the name of this style sheet.

Returns

The name of this style sheet as it was provided in the constructor, or 0 if it has none, or if the styling technology does not care for style sheet names. If a valid value is returned, it must not be modified or deleted.
The default implementation return 0.

getStylingTechnology()

virtual const char* IlvStyleSheet::getStylingTechnology ( ) const

pure virtual

Returns a string that identifies the styling technology of the current style sheet.

Returns

The name of the styling technology implemented bu this style sheet. The returned value must not be modified or deleted.

read()

virtual IlBoolean IlvStyleSheet::read ( std::istream &  stream )

pure virtual

Reads a style sheet content from the specified input stream.

Parameters

stream

The input stream to read the style from.

Returns

IlTrue on success, and IlFalse if the operation fails.

setContent()

virtual IlBoolean IlvStyleSheet::setContent ( const char *  content )

pure virtual

Sets the content of this style sheet.

Parameters

content

The content to set to this style sheet.

Returns

IlTrue on success, and IlFalse if the operation fails.

unLock()

void IlvStyleSheet::unLock

(

)

Decrements the reference count by 1.

If the counter reaches 0, this style sheet is deleted.