Base class for processing modules. More...

#include <qgsrasterpipe.h>

Public Types
enum	Role { UnknownRole = 0, ProviderRole = 1, RendererRole = 2, BrightnessRole = 3, ResamplerRole = 4, ProjectorRole = 5, NullerRole = 6, HueSaturationRole = 7 }

Public Member Functions
	QgsRasterPipe ()
	QgsRasterPipe (const QgsRasterPipe &thePipe)
	~QgsRasterPipe ()
bool	insert (int idx, QgsRasterInterface *theInterface)
	Try to insert interface at specified index and connect if connection would fail, the interface is not inserted and false is returned.
bool	replace (int idx, QgsRasterInterface *theInterface)
	Try to replace interface at specified index and connect if connection would fail, the interface is not inserted and false is returned.
bool	set (QgsRasterInterface *theInterface)
	Insert a new known interface in default place or replace interface of the same role if it already exists.
bool	remove (int idx)
	Remove and delete interface at given index if possible.
bool	remove (QgsRasterInterface *theInterface)
	Remove and delete interface from pipe if possible.
int	size () const
QgsRasterInterface *	at (int idx) const
QgsRasterInterface *	last () const
bool	setOn (int idx, bool on)
	Set interface at index on/off Returns true on success.
bool	canSetOn (int idx, bool on)
	Test if interface at index may be swithed on/off.
QgsRasterDataProvider *	provider () const
QgsRasterRenderer *	renderer () const
QgsRasterResampleFilter *	resampleFilter () const
QgsBrightnessContrastFilter *	brightnessFilter () const
QgsHueSaturationFilter *	hueSaturationFilter () const
QgsRasterProjector *	projector () const
QgsRasterNuller *	nuller () const

Private Member Functions
Role	interfaceRole (QgsRasterInterface *iface) const
	Get known parent type_info of interface parent.
void	setRole (QgsRasterInterface *theInterface, int idx)
void	unsetRole (QgsRasterInterface *theInterface)
bool	checkBounds (int idx) const
QgsRasterInterface *	interface (Role role) const
	Get known interface by role.
bool	connect (QVector< QgsRasterInterface * > theInterfaces)
	Try to connect interfaces in pipe and to the provider at beginning.

Private Attributes
QVector< QgsRasterInterface * >	mInterfaces
QMap< Role, int >	mRoleMap

Detailed Description

Base class for processing modules.

Definition at line 41 of file qgsrasterpipe.h.

Member Enumeration Documentation

enum QgsRasterPipe::Role

Enumerator:

UnknownRole
ProviderRole
RendererRole
BrightnessRole
ResamplerRole
ProjectorRole
NullerRole
HueSaturationRole

Definition at line 45 of file qgsrasterpipe.h.

Constructor & Destructor Documentation

QgsRasterPipe::QgsRasterPipe ( )

Definition at line 25 of file qgsrasterpipe.cpp.

QgsRasterPipe::QgsRasterPipe ( const QgsRasterPipe & thePipe )

Definition at line 29 of file qgsrasterpipe.cpp.

References QgsRasterInterface::clone(), interface(), interfaceRole(), mInterfaces, mRoleMap, QgsDebugMsg, size(), and UnknownRole.

QgsRasterPipe::~QgsRasterPipe ( )

Definition at line 50 of file qgsrasterpipe.cpp.

References interface(), and mInterfaces.

Member Function Documentation

QgsRasterInterface* QgsRasterPipe::at ( int idx ) const

inline

Definition at line 85 of file qgsrasterpipe.h.

QgsBrightnessContrastFilter * QgsRasterPipe::brightnessFilter ( ) const

Definition at line 239 of file qgsrasterpipe.cpp.

References BrightnessRole, and interface().

bool QgsRasterPipe::canSetOn	(	int	idx,
		bool	on
	)

Test if interface at index may be swithed on/off.

Definition at line 292 of file qgsrasterpipe.cpp.

References checkBounds(), connect(), mInterfaces, and QgsDebugMsg.

bool QgsRasterPipe::checkBounds ( int idx ) const

private

Definition at line 331 of file qgsrasterpipe.cpp.

References mInterfaces.

Referenced by canSetOn(), remove(), replace(), and setOn().

bool QgsRasterPipe::connect ( QVector< QgsRasterInterface * > theInterfaces )

private

Try to connect interfaces in pipe and to the provider at beginning.

Returns true if connected or false if connection failed

Definition at line 58 of file qgsrasterpipe.cpp.

References QgsDebugMsg.

Referenced by canSetOn(), insert(), remove(), replace(), and setOn().

QgsHueSaturationFilter * QgsRasterPipe::hueSaturationFilter ( ) const

Definition at line 244 of file qgsrasterpipe.cpp.

References HueSaturationRole, and interface().

bool QgsRasterPipe::insert	(	int	idx,
		QgsRasterInterface *	theInterface
	)

Try to insert interface at specified index and connect if connection would fail, the interface is not inserted and false is returned.

Definition at line 72 of file qgsrasterpipe.cpp.

References connect(), mInterfaces, QgsDebugMsg, and setRole().

Referenced by set().

QgsRasterInterface * QgsRasterPipe::interface ( Role role ) const

private

Get known interface by role.

Definition at line 214 of file qgsrasterpipe.cpp.

References mInterfaces, mRoleMap, and QgsDebugMsg.

Referenced by brightnessFilter(), hueSaturationFilter(), nuller(), projector(), provider(), QgsRasterPipe(), renderer(), resampleFilter(), and ~QgsRasterPipe().

QgsRasterPipe::Role QgsRasterPipe::interfaceRole ( QgsRasterInterface * iface ) const

private

Get known parent type_info of interface parent.

Definition at line 124 of file qgsrasterpipe.cpp.

References BrightnessRole, HueSaturationRole, NullerRole, ProjectorRole, ProviderRole, QgsDebugMsg, RendererRole, ResamplerRole, and UnknownRole.

Referenced by QgsRasterPipe(), set(), setRole(), and unsetRole().

QgsRasterInterface* QgsRasterPipe::last ( ) const

inline

Definition at line 86 of file qgsrasterpipe.h.

Referenced by QgsRasterLayer::draw(), QgsRasterFileWriter::writeDataRaster(), and QgsRasterFileWriter::writeRaster().

QgsRasterNuller * QgsRasterPipe::nuller ( ) const

Definition at line 254 of file qgsrasterpipe.cpp.

References interface(), and NullerRole.

Referenced by QgsRasterFileWriter::writeDataRaster().

QgsRasterProjector * QgsRasterPipe::projector ( ) const

Definition at line 249 of file qgsrasterpipe.cpp.

References interface(), and ProjectorRole.

Referenced by QgsRasterLayer::draw(), and QgsRasterFileWriter::writeDataRaster().

QgsRasterDataProvider * QgsRasterPipe::provider ( ) const

Definition at line 224 of file qgsrasterpipe.cpp.

References interface(), and ProviderRole.

bool QgsRasterPipe::remove ( int idx )

Remove and delete interface at given index if possible.

Definition at line 259 of file qgsrasterpipe.cpp.

References checkBounds(), connect(), mInterfaces, QgsDebugMsg, and unsetRole().

Referenced by QgsRasterLayer::closeDataProvider(), and QgsRasterLayer::setDataProvider().

bool QgsRasterPipe::remove ( QgsRasterInterface * theInterface )

Remove and delete interface from pipe if possible.

Definition at line 285 of file qgsrasterpipe.cpp.

References mInterfaces.

QgsRasterRenderer * QgsRasterPipe::renderer ( ) const

Definition at line 229 of file qgsrasterpipe.cpp.

References interface(), and RendererRole.

Referenced by QgsRasterLayer::legendSymbologyItems(), QgsRasterLayer::setContrastEnhancement(), and QgsRasterLayer::setDataProvider().

bool QgsRasterPipe::replace	(	int	idx,
		QgsRasterInterface *	theInterface
	)

Try to replace interface at specified index and connect if connection would fail, the interface is not inserted and false is returned.

Definition at line 98 of file qgsrasterpipe.cpp.

References checkBounds(), connect(), mInterfaces, QgsDebugMsg, and setRole().

Referenced by set().

QgsRasterResampleFilter * QgsRasterPipe::resampleFilter ( ) const

Definition at line 234 of file qgsrasterpipe.cpp.

References interface(), and ResamplerRole.

bool QgsRasterPipe::set ( QgsRasterInterface * theInterface )

Insert a new known interface in default place or replace interface of the same role if it already exists.

Known interfaces are: QgsRasterDataProvider, QgsRasterRenderer, QgsRasterResampleFilter, QgsRasterProjector and their subclasses. For unknown interfaces it mus be explicitly specified position where it should be inserted using insert() method.

Definition at line 153 of file qgsrasterpipe.cpp.

References BrightnessRole, HueSaturationRole, insert(), interfaceRole(), mRoleMap, ProjectorRole, ProviderRole, QgsDebugMsg, RendererRole, replace(), ResamplerRole, and UnknownRole.