Class: TNullStyleFilter

Declaration: StyleRunIterator.h

Taxonomy Categories:

Member Functions:

Interface Category:

API.

Inherits From:

TStyleFilter

Inherited By:

None.

Purpose:

TNullStyleFilter, derived from TStyleFilter, is the default filter. It iterates through each run as they exist in the text object, without analyzing them for any particular conditions.

Instantiation:

Allocate on the heap or the stack.

Deriving Classes:

This class is not designed for deriving.

Concurrency:

Not multithread safe.

Resource Use:

No special requirements.

Member Function: TNullStyleFilter::TNullStyleFilter

TNullStyleFilter ()
TNullStyleFilter (const TNullStyleFilter & toCopy)

Interface Category:

API.

Purpose:

Default constructor.
Copy constructor.

Calling Context:

Called by the stream-in operators and to instantiate this class.
Called to copy an object.

Parameters:

Takes no parameters.
const TNullStyleFilter & toCopy -The object to copy.

Return Value:

None.

Exceptions:

Throws no exceptions, passes all exceptions through.

Concurrency:

Not multithread safe.

Other Considerations:

None.

Member Function: TNullStyleFilter::operator=

TNullStyleFilter & operator =(const TNullStyleFilter & toCopy)

Interface Category:

API.

Purpose:

Assignment operator.

Calling Context:

Called when an object is assigned to another compatible object.

Parameters:

const TNullStyleFilter & toCopy -The source object for the assignment.

Return Value:

A non-const reference to the left-hand side object.

Exceptions:

Throws no exceptions, passes all exceptions through.

Concurrency:

Not multithread safe.

Other Considerations:

None.

Member Function: TNullStyleFilter::~TNullStyleFilter

virtual ~ TNullStyleFilter ()

Interface Category:

API.

Purpose:

Destructor.

Calling Context:

Called to destroy an object.

Parameters:

Takes no parameters.

Return Value:

None.

Exceptions:

Throws no exceptions, passes all exceptions through.

Concurrency:

Not multithread safe.

Other Considerations:

None.

Member Function: TNullStyleFilter::CheckForFirstRun

virtual FilterAction CheckForFirstRun (const TStyleSet * set)

Interface Category:

API.

Purpose:

Iterates through style runs until a run matching the filter conditions is found.

Calling Context:

Called while it returns excludeAndContinue; that is, until it returns includeAndContinue or includeAndStop. If it is a stop, the iterator stops and returns a single run. Otherwise, it calls CheckForContinuedRun to determine the extent of the range. It must never return excludeAndStop.

Parameters:

const TStyleSet * set -The style set defining the filter.

Return Value:

The FilterAction value specifying the action required by the first located run.

Exceptions:

Throws no exceptions, passes all exceptions through.

Concurrency:

Not multithread safe.

Other Considerations:

None.

Member Function: TNullStyleFilter::CheckForContinuedRun

virtual FilterAction CheckForContinuedRun (const TStyleSet * set)

Interface Category:

API.

Purpose:

Iterates through additional runs to determine if any need to be concatenated to the first located run.

Calling Context:

Called after a run matching the specified conditions is found; that is, after CheckForFirstRun returns includeAndContinue. This function is then called as long as it returns includeAndContinue.

Parameters:

const TStyleSet * set -The style set defining the filter.

Return Value:

The FilterAction value specifying the action required by the first located run.

Exceptions:

Throws no exceptions, passes all exceptions through.

Concurrency:

Not multithread safe.

Other Considerations:

None.

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