#include <alpha.hxx>

Inheritance diagram for AlphaMask:

Collaboration diagram for AlphaMask:

Public Types
typedef vcl::ScopedBitmapAccess< BitmapReadAccess, AlphaMask, &AlphaMask::AcquireAlphaReadAccess >	ScopedReadAccess

Public Types inherited from Bitmap
typedef vcl::ScopedBitmapAccess< BitmapReadAccess, Bitmap, &Bitmap::AcquireReadAccess >	ScopedReadAccess

typedef vcl::ScopedBitmapAccess< BitmapInfoAccess, Bitmap, &Bitmap::AcquireInfoAccess >	ScopedInfoAccess

Public Member Functions
	AlphaMask ()

	AlphaMask (const Bitmap &rBitmap)

	AlphaMask (const AlphaMask &rAlphaMask)

	AlphaMask (AlphaMask &&rAlphaMask)

	AlphaMask (const Size &rSizePixel, const sal_uInt8 *pEraseTransparency=nullptr)

virtual	~AlphaMask () override

AlphaMask &	operator= (const Bitmap &rBitmap)

AlphaMask &	operator= (const AlphaMask &rAlphaMask)

AlphaMask &	operator= (AlphaMask &&rAlphaMask) noexcept

bool	operator== (const AlphaMask &rAlphaMask) const

bool	operator!= (const AlphaMask &rAlphaMask) const

Bitmap const &	GetBitmap () const

void	Erase (sal_uInt8 cTransparency)

void	BlendWith (const AlphaMask &rOther)

bool	hasAlpha () const

BitmapReadAccess *	AcquireAlphaReadAccess ()

BitmapWriteAccess *	AcquireAlphaWriteAccess ()

void	ReleaseAccess (BitmapReadAccess *pAccess)

bool	IsEmpty () const

Public Member Functions inherited from Bitmap
	Bitmap ()

	Bitmap (const Bitmap &rBitmap)

	Bitmap (const Size &rSizePixel, vcl::PixelFormat ePixelFormat, const BitmapPalette *pPal=nullptr)

	Bitmap (std::shared_ptr< SalBitmap > xSalBitmap)

virtual	~Bitmap ()

Bitmap &	operator= (const Bitmap &rBitmap)

Bitmap &	operator= (Bitmap &&rBitmap) noexcept

bool	operator== (const Bitmap &rBitmap) const

bool	operator!= (const Bitmap &rBitmap) const

bool	IsEmpty () const

void	SetEmpty ()

const MapMode &	GetPrefMapMode () const

void	SetPrefMapMode (const MapMode &rMapMode)

const Size &	GetPrefSize () const

void	SetPrefSize (const Size &rSize)

Size	GetSizePixel () const

vcl::PixelFormat	getPixelFormat () const

sal_Int64	GetSizeBytes () const

bool	HasGreyPalette8Bit () const

bool	HasGreyPaletteAny () const

bool	GetSystemData (BitmapSystemData &rData) const
	get system dependent bitmap data More...

BitmapChecksum	GetChecksum () const

Bitmap	CreateDisplayBitmap (OutputDevice *pDisplay) const

bool	Convert (BmpConversion eConversion)
	Convert bitmap format. More...

bool	Dither ()
	Apply a Floyd dither algorithm to the bitmap. More...

bool	Crop (const tools::Rectangle &rRectPixel)
	Crop the bitmap. More...

bool	Expand (sal_Int32 nDX, sal_Int32 nDY, const Color *pInitColor=nullptr)
	Expand the bitmap by pixel padding. More...

bool	CopyPixel (const tools::Rectangle &rRectDst, const tools::Rectangle &rRectSrc, const Bitmap *pBmpSrc=nullptr)
	Copy a rectangular area from another bitmap. More...

bool	CopyPixel_AlphaOptimized (const tools::Rectangle &rRectDst, const tools::Rectangle &rRectSrc, const Bitmap *pBmpSrc)

bool	CombineOr (const Bitmap &rMask)
	Perform boolean OR operation with another bitmap. More...

bool	Blend (const AlphaMask &rAlpha, const Color &rBackgroundColor)
	Alpha-blend the given bitmap against a specified uniform background color. More...

bool	Erase (const Color &rFillColor)
	Fill the entire bitmap with the given color. More...

bool	Invert ()
	Perform the Invert operation on every pixel. More...

bool	Mirror (BmpMirrorFlags nMirrorFlags)
	Mirror the bitmap. More...

bool	Scale (const Size &rNewSize, BmpScaleFlag nScaleFlag=BmpScaleFlag::Default)
	Scale the bitmap. More...

bool	Scale (const double &rScaleX, const double &rScaleY, BmpScaleFlag nScaleFlag=BmpScaleFlag::Default)
	Scale the bitmap. More...

void	AdaptBitCount (Bitmap &rNew) const

bool	Rotate (Degree10 nAngle10, const Color &rFillColor)
	Rotate bitmap by the specified angle. More...

Bitmap	CreateMask (const Color &rTransColor) const
	Create on-off mask from bitmap. More...

Bitmap	CreateMask (const Color &rTransColor, sal_uInt8 nTol) const
	Create on-off mask from bitmap. More...

AlphaMask	CreateAlphaMask (const Color &rTransColor) const
	Create on-off alpha mask from bitmap. More...

AlphaMask	CreateAlphaMask (const Color &rTransColor, sal_uInt8 nTol) const
	Create on-off alpha mask from bitmap. More...

vcl::Region	CreateRegion (const Color &rColor, const tools::Rectangle &rRect) const
	Create region of similar colors in a given rectangle. More...

bool	Replace (const AlphaMask &rAlpha, const Color &rMergeColor)
	Merge bitmap with given background color according to specified alpha mask. More...

bool	Replace (const Color &rSearchColor, const Color &rReplaceColor, sal_uInt8 nTol=0)
	Replace all pixel having the search color with the specified color. More...

bool	Replace (const Color pSearchColors, const Color rReplaceColors, size_t nColorCount, sal_uInt8 const *pTols)
	Replace all pixel having one the search colors with the corresponding replace color. More...

void	Vectorize (GDIMetaFile &rMtf, sal_uInt8 cReduce, const Link< tools::Long, void > *pProgress)
	Convert the bitmap to a meta file. More...

bool	Adjust (short nLuminancePercent, short nContrastPercent=0, short nChannelRPercent=0, short nChannelGPercent=0, short nChannelBPercent=0, double fGamma=1.0, bool bInvert=false, bool msoBrightness=false)
	Change various global color characteristics. More...

void	RemoveBlendedStartColor (const Color &rColor, const AlphaMask &rAlphaMask)
	Remove existing blending against COL_WHITE based on given AlphaMask. More...

const basegfx::SystemDependentDataHolder *	accessSystemDependentDataHolder () const

SAL_DLLPRIVATE void	ReassignWithSize (const Bitmap &rBitmap)
	ReassignWithSize and recalculate bitmap. More...

SAL_DLLPRIVATE void	ImplMakeUnique ()

const std::shared_ptr< SalBitmap > &	ImplGetSalBitmap () const

SAL_DLLPRIVATE void	ImplSetSalBitmap (const std::shared_ptr< SalBitmap > &xImpBmp)

SAL_DLLPRIVATE bool	ImplMakeGreyscales ()

BitmapInfoAccess *	AcquireInfoAccess ()

BitmapReadAccess *	AcquireReadAccess ()

BitmapWriteAccess *	AcquireWriteAccess ()

Private Member Functions
SAL_DLLPRIVATE const Bitmap &	ImplGetBitmap () const

Friends
class	BitmapEx

class	::OutputDevice

bool VCL_DLLPUBLIC	ReadDIBBitmapEx (BitmapEx &rTarget, SvStream &rIStm, bool bFileHeader, bool bMSOFormat)

Additional Inherited Members
Static Public Member Functions inherited from Bitmap
static const BitmapPalette &	GetGreyPalette (int nEntries)

static bool	HasFastScale ()
	Returns true if bitmap scaling is considered to be fast. More...

static void	ReleaseAccess (BitmapInfoAccess *pAccess)

Detailed Description

Definition at line 32 of file alpha.hxx.

Member Typedef Documentation

◆ ScopedReadAccess

typedef vcl::ScopedBitmapAccess<BitmapReadAccess, AlphaMask, &AlphaMask::AcquireAlphaReadAccess> AlphaMask::ScopedReadAccess

Definition at line 62 of file alpha.hxx.

Constructor & Destructor Documentation

◆ AlphaMask() [1/5]

AlphaMask::AlphaMask ( )

default

◆ AlphaMask() [2/5]

AlphaMask::AlphaMask ( const Bitmap & rBitmap )

explicit

Definition at line 31 of file alpha.cxx.

References Bitmap::Convert(), Bitmap::getPixelFormat(), Bitmap::HasGreyPalette8Bit(), IsEmpty(), Bitmap::IsEmpty(), vcl::N8_BPP, and N8BitNoConversion.

◆ AlphaMask() [3/5]

AlphaMask::AlphaMask ( const AlphaMask & rAlphaMask )

default

◆ AlphaMask() [4/5]

AlphaMask::AlphaMask ( AlphaMask && rAlphaMask )

default

◆ AlphaMask() [5/5]

AlphaMask::AlphaMask	(	const Size &	rSizePixel,
		const sal_uInt8 *	pEraseTransparency = `nullptr`
	)

explicit

Definition at line 45 of file alpha.cxx.

References COL_ALPHA_OPAQUE(), and Bitmap::Erase().

◆ ~AlphaMask()

AlphaMask::~AlphaMask ( )

overridevirtualdefault

Member Function Documentation

◆ AcquireAlphaReadAccess()

BitmapReadAccess * AlphaMask::AcquireAlphaReadAccess ( )

inline

Definition at line 57 of file alpha.hxx.

References Bitmap::AcquireReadAccess().

◆ AcquireAlphaWriteAccess()

BitmapWriteAccess * AlphaMask::AcquireAlphaWriteAccess ( )

inline

Definition at line 58 of file alpha.hxx.

References Bitmap::AcquireWriteAccess().

◆ BlendWith()

void AlphaMask::BlendWith ( const AlphaMask & rOther )

Definition at line 88 of file alpha.cxx.

References BitmapInfoAccess::GetBitCount(), Bitmap::getPixelFormat(), BitmapReadAccess::GetScanline(), Bitmap::HasGreyPalette8Bit(), BitmapInfoAccess::Height(), Bitmap::ImplGetSalBitmap(), ImplGetSVData(), Bitmap::ImplSetSalBitmap(), vcl::N8_BPP, vcl::ScopedBitmapAccess< Access, Bitmap, Acquire >::reset(), SAL_WARN, BitmapInfoAccess::Width(), x, and y.

Referenced by OutputDevice::DrawTransformedBitmapEx(), OutputDevice::DrawTransparent(), and vcl::PDFWriterImpl::playMetafile().

◆ Erase()

void AlphaMask::Erase ( sal_uInt8 cTransparency )

Definition at line 82 of file alpha.cxx.

References Bitmap::Erase().

Referenced by OutputDevice::DrawTransformBitmapExDirect(), OutputDevice::DrawTransformedBitmapEx(), BitmapEx::Erase(), Printer::ImplPrintTransparent(), GraphicObject::ImplTransformBitmap(), vcl::PageSyncData::PlaySyncPageAct(), and BitmapEx::Rotate().

◆ GetBitmap()

Bitmap const & AlphaMask::GetBitmap ( ) const

Definition at line 77 of file alpha.cxx.

References ImplGetBitmap().

Referenced by vcl::bitmap::CanvasExtractBitmapData(), vcl::bitmap::CanvasTransformBitmap(), Image::Draw(), vcl::drawmode::GetBitmapEx(), vcl::bitmap::GetMaskDIB(), vcl::unotools::VclCanvasBitmap::VclCanvasBitmap(), and vcl::PDFWriterImpl::writeBitmapObject().

◆ hasAlpha()

bool AlphaMask::hasAlpha ( ) const

Definition at line 132 of file alpha.cxx.

References IsEmpty(), x, and y.

◆ ImplGetBitmap()

const Bitmap & AlphaMask::ImplGetBitmap ( ) const

private

Definition at line 72 of file alpha.cxx.

Referenced by BitmapEx::BitmapEx(), BitmapEx::CopyPixel(), and GetBitmap().

◆ IsEmpty()

bool Bitmap::IsEmpty ( ) const

inline

◆ operator!=()

bool AlphaMask::operator!= ( const AlphaMask & rAlphaMask ) const

inline

Definition at line 47 of file alpha.hxx.

References Bitmap::operator!=().

◆ operator=() [1/3]

AlphaMask & AlphaMask::operator= ( AlphaMask && rAlphaMask )

inlinenoexcept

Definition at line 45 of file alpha.hxx.

References Bitmap::operator=().

◆ operator=() [2/3]

AlphaMask & AlphaMask::operator= ( const AlphaMask & rAlphaMask )

inline

Definition at line 44 of file alpha.hxx.

References Bitmap::operator=().

◆ operator=() [3/3]

AlphaMask & AlphaMask::operator= ( const Bitmap & rBitmap )

Definition at line 59 of file alpha.cxx.

References Bitmap::Convert(), Bitmap::getPixelFormat(), Bitmap::HasGreyPalette8Bit(), Bitmap::IsEmpty(), vcl::N8_BPP, and N8BitNoConversion.

◆ operator==()

bool AlphaMask::operator== ( const AlphaMask & rAlphaMask ) const

inline

Definition at line 46 of file alpha.hxx.

References Bitmap::operator==().

◆ ReleaseAccess()

void AlphaMask::ReleaseAccess ( BitmapReadAccess * pAccess )

Definition at line 160 of file alpha.cxx.

References Bitmap::Convert(), Bitmap::getPixelFormat(), Bitmap::HasGreyPalette8Bit(), vcl::N8_BPP, N8BitNoConversion, and Bitmap::ReleaseAccess().

Referenced by vcl::bitmap::CanvasCairoExtractBitmapData().

Friends And Related Function Documentation

◆ ::OutputDevice

friend class ::OutputDevice

friend

Definition at line 68 of file alpha.hxx.

◆ BitmapEx

friend class BitmapEx

friend

Definition at line 67 of file alpha.hxx.

◆ ReadDIBBitmapEx

bool VCL_DLLPUBLIC ReadDIBBitmapEx	(	BitmapEx &	rTarget,
		SvStream &	rIStm,
		bool	bFileHeader,
		bool	bMSOFormat
	)

friend

Definition at line 1623 of file dibtools.cxx.

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

Public Types

Public Member Functions

Private Member Functions

Friends

Additional Inherited Members

Detailed Description

Member Typedef Documentation

◆ ScopedReadAccess

Constructor & Destructor Documentation

◆ AlphaMask() [1/5]

◆ AlphaMask() [2/5]

◆ AlphaMask() [3/5]

◆ AlphaMask() [4/5]

◆ AlphaMask() [5/5]

◆ ~AlphaMask()

Member Function Documentation

◆ AcquireAlphaReadAccess()

◆ AcquireAlphaWriteAccess()

◆ BlendWith()

◆ Erase()

◆ GetBitmap()

◆ hasAlpha()

◆ ImplGetBitmap()

◆ IsEmpty()

◆ operator!=()

◆ operator=() [1/3]

◆ operator=() [2/3]

◆ operator=() [3/3]

◆ operator==()

◆ ReleaseAccess()

Friends And Related Function Documentation

◆ ::OutputDevice

◆ BitmapEx

◆ ReadDIBBitmapEx