basegfx::utils::B2DClipState Class Reference

This class provides an optimized, symbolic clip state for graphical output. More...

#include <b2dclipstate.hxx>

Collaboration diagram for basegfx::utils::B2DClipState:

Public Types
typedef o3tl::cow_wrapper< ImplB2DClipState >	ImplType

Public Member Functions
	B2DClipState ()
	Init clip, in 'cleared' state - everything is visible. More...
	~B2DClipState ()
	B2DClipState (const B2DClipState &)
	B2DClipState (B2DClipState &&)
	B2DClipState (const B2DPolyPolygon &)
B2DClipState &	operator= (const B2DClipState &)
B2DClipState &	operator= (B2DClipState &&)
void	makeNull ()
	Set clip to 'null' - nothing is visible. More...
bool	isCleared () const
	returns true when clip is 'cleared' - everything is visible More...
bool	operator== (const B2DClipState &) const
bool	operator!= (const B2DClipState &) const
void	unionRange (const B2DRange &)
void	unionPolyPolygon (const B2DPolyPolygon &)
void	intersectRange (const B2DRange &)
void	intersectPolyPolygon (const B2DPolyPolygon &)
void	subtractRange (const B2DRange &)
void	subtractPolyPolygon (const B2DPolyPolygon &)
void	xorRange (const B2DRange &)
void	xorPolyPolygon (const B2DPolyPolygon &)
void	transform (const B2DHomMatrix &)
B2DPolyPolygon const &	getClipPoly () const

Private Attributes
ImplType	mpImpl

Detailed Description

This class provides an optimized, symbolic clip state for graphical output.

Having a current 'clip' state is a common attribute of almost all graphic output APIs, most of which internally represent it via a list of rectangular bands. In contrast, this implementation purely uses symbolic clips, but in a quite efficient manner, deferring actual evaluation until a clip representation is requested, and using faster code paths for common special cases (like all-rectangle clips)

Definition at line 47 of file b2dclipstate.hxx.

Member Typedef Documentation

ImplType

typedef o3tl::cow_wrapper< ImplB2DClipState > basegfx::utils::B2DClipState::ImplType

Definition at line 50 of file b2dclipstate.hxx.

Constructor & Destructor Documentation

B2DClipState() [1/4]

basegfx::utils::B2DClipState::B2DClipState ( )

default

Init clip, in 'cleared' state - everything is visible.

~B2DClipState()

basegfx::utils::B2DClipState::~B2DClipState ( )

default

B2DClipState() [2/4]

basegfx::utils::B2DClipState::B2DClipState ( const B2DClipState &  )

default

B2DClipState() [3/4]

basegfx::utils::B2DClipState::B2DClipState ( B2DClipState &&  )

default

B2DClipState() [4/4]

basegfx::utils::B2DClipState::B2DClipState ( const B2DPolyPolygon &  rPolyPoly )

explicit

Definition at line 392 of file b2dclipstate.cxx.

Member Function Documentation

getClipPoly()

B2DPolyPolygon const & basegfx::utils::B2DClipState::getClipPoly

(

)

const

Definition at line 463 of file b2dclipstate.cxx.

References mpImpl.

intersectPolyPolygon()

void basegfx::utils::B2DClipState::intersectPolyPolygon

(

const B2DPolyPolygon &

rPolyPoly

)

Definition at line 438 of file b2dclipstate.cxx.

References mpImpl.

intersectRange()

void basegfx::utils::B2DClipState::intersectRange

(

const B2DRange &

rRange

)

Definition at line 433 of file b2dclipstate.cxx.

References mpImpl.

isCleared()

bool basegfx::utils::B2DClipState::isCleared

(

)

const

returns true when clip is 'cleared' - everything is visible

Definition at line 405 of file b2dclipstate.cxx.

References mpImpl.

makeNull()

void basegfx::utils::B2DClipState::makeNull

(

)

Set clip to 'null' - nothing is visible.

Definition at line 400 of file b2dclipstate.cxx.

References mpImpl.

operator!=()

bool basegfx::utils::B2DClipState::operator!=

(

const B2DClipState &

rRHS

)

const

Definition at line 418 of file b2dclipstate.cxx.

operator=() [1/2]

B2DClipState & basegfx::utils::B2DClipState::operator= ( B2DClipState &&  )

default

References operator!=(), and operator==().

operator=() [2/2]

B2DClipState & basegfx::utils::B2DClipState::operator= ( const B2DClipState &  )

default

operator==()

bool basegfx::utils::B2DClipState::operator==

(

const B2DClipState &

rRHS

)

const

Definition at line 410 of file b2dclipstate.cxx.

References mpImpl, and o3tl::cow_wrapper< typename T, class MTPolicy >::same_object().

subtractPolyPolygon()

void basegfx::utils::B2DClipState::subtractPolyPolygon

(

const B2DPolyPolygon &

rPolyPoly

)

Definition at line 448 of file b2dclipstate.cxx.

References mpImpl.

subtractRange()

void basegfx::utils::B2DClipState::subtractRange

(

const B2DRange &

rRange

)

Definition at line 443 of file b2dclipstate.cxx.

References mpImpl.

transform()

void basegfx::utils::B2DClipState::transform

(

const B2DHomMatrix &

rTranslate

)

Definition at line 468 of file b2dclipstate.cxx.

References mpImpl.

unionPolyPolygon()

void basegfx::utils::B2DClipState::unionPolyPolygon

(

const B2DPolyPolygon &

rPolyPoly

)

Definition at line 428 of file b2dclipstate.cxx.

References mpImpl.

unionRange()

void basegfx::utils::B2DClipState::unionRange

(

const B2DRange &

rRange

)

Definition at line 423 of file b2dclipstate.cxx.

References mpImpl.

xorPolyPolygon()

void basegfx::utils::B2DClipState::xorPolyPolygon

(

const B2DPolyPolygon &

rPolyPoly

)

Definition at line 458 of file b2dclipstate.cxx.

References mpImpl.

xorRange()

void basegfx::utils::B2DClipState::xorRange

(

const B2DRange &

rRange

)

Definition at line 453 of file b2dclipstate.cxx.

References mpImpl.

Member Data Documentation

mpImpl

ImplType basegfx::utils::B2DClipState::mpImpl

private

Definition at line 53 of file b2dclipstate.hxx.

Referenced by getClipPoly(), intersectPolyPolygon(), intersectRange(), isCleared(), makeNull(), operator==(), subtractPolyPolygon(), subtractRange(), transform(), unionPolyPolygon(), unionRange(), xorPolyPolygon(), and xorRange().

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

• b2dclipstate.hxx
• b2dclipstate.cxx