QGIS API Documentation: QgsProcessingMultiStepFeedback Class Reference

QGIS API Documentation 3.4.15-Madeira (e83d02e274)

Processing feedback object for multi-step operations. More...

#include <qgsprocessingfeedback.h>

Inheritance diagram for QgsProcessingMultiStepFeedback:

Inheritance graph

[legend]

Public Member Functions
	QgsProcessingMultiStepFeedback (int steps, QgsProcessingFeedback *feedback)
	Constructor for QgsProcessingMultiStepFeedback, for a process with the specified number of steps. More...

void	pushCommandInfo (const QString &info) override
	Pushes an informational message containing a command from the algorithm. More...

void	pushConsoleInfo (const QString &info) override
	Pushes a console feedback message from the algorithm. More...

void	pushDebugInfo (const QString &info) override
	Pushes an informational message containing debugging helpers from the algorithm. More...

void	pushInfo (const QString &info) override
	Pushes a general informational message from the algorithm. More...

void	reportError (const QString &error, bool fatalError) override
	Reports that the algorithm encountered an error while executing. More...

void	setCurrentStep (int step)
	Sets the step which is being executed. More...

void	setProgressText (const QString &text) override
	Sets a progress report text string. More...

Public Member Functions inherited from QgsFeedback
	QgsFeedback (QObject *parent=nullptr)
	Construct a feedback object. More...

bool	isCanceled () const
	Tells whether the operation has been canceled already. More...

double	progress () const
	Returns the current progress reported by the feedback object. More...

void	setProgress (double progress)
	Sets the current progress for the feedback object. More...

Additional Inherited Members
Public Slots inherited from QgsFeedback
void	cancel ()
	Tells the internal routines that the current operation should be canceled. This should be run by the main thread. More...

Signals inherited from QgsFeedback
void	canceled ()
	Internal routines can connect to this signal if they use event loop. More...

void	progressChanged (double progress)
	Emitted when the feedback object reports a progress change. More...

Detailed Description

Processing feedback object for multi-step operations.

A processing feedback object which proxies its calls to an underlying feedback object, but scales overall progress reports to account for a number of child steps which each report their own feedback.

Since: QGIS 3.0

Definition at line 109 of file qgsprocessingfeedback.h.

Constructor & Destructor Documentation

QgsProcessingMultiStepFeedback::QgsProcessingMultiStepFeedback	(	int	steps,
		QgsProcessingFeedback *	feedback
	)

Constructor for QgsProcessingMultiStepFeedback, for a process with the specified number of steps.

This feedback object will proxy calls to the specified feedback object.

Definition at line 20 of file qgsprocessingfeedback.cpp.

Member Function Documentation

void QgsProcessingMultiStepFeedback::pushCommandInfo ( const QString & info )

overridevirtual

Pushes an informational message containing a command from the algorithm.

This is usually used to report commands which are executed in an external application or as subprocesses.

See also: pushInfo(); pushDebugInfo(); pushConsoleInfo()

Reimplemented from QgsProcessingFeedback.

Definition at line 49 of file qgsprocessingfeedback.cpp.

void QgsProcessingMultiStepFeedback::pushConsoleInfo ( const QString & info )

overridevirtual

Pushes a console feedback message from the algorithm.

This is used to report the output from executing an external command or subprocess.

See also: pushInfo(); pushDebugInfo(); pushCommandInfo()

Reimplemented from QgsProcessingFeedback.

Definition at line 59 of file qgsprocessingfeedback.cpp.

void QgsProcessingMultiStepFeedback::pushDebugInfo ( const QString & info )

overridevirtual

Pushes an informational message containing debugging helpers from the algorithm.

See also: pushInfo(); pushCommandInfo(); pushConsoleInfo()

Reimplemented from QgsProcessingFeedback.

Definition at line 54 of file qgsprocessingfeedback.cpp.

void QgsProcessingMultiStepFeedback::pushInfo ( const QString & info )

overridevirtual

Pushes a general informational message from the algorithm.

This can be used to report feedback which is neither a status report or an error, such as "Found 47 matching features".

See also: pushCommandInfo(); pushDebugInfo(); pushConsoleInfo()

Reimplemented from QgsProcessingFeedback.

Definition at line 44 of file qgsprocessingfeedback.cpp.

void QgsProcessingMultiStepFeedback::reportError	(	const QString &	error,
		bool	fatalError
	)

overridevirtual

Reports that the algorithm encountered an error while executing.

If fatalError is true then the error prevented the algorithm from executing.

Reimplemented from QgsProcessingFeedback.

Definition at line 39 of file qgsprocessingfeedback.cpp.

void QgsProcessingMultiStepFeedback::setCurrentStep ( int step )

Sets the step which is being executed.

This is used to scale the current progress to account for progress through the overall process.

Definition at line 28 of file qgsprocessingfeedback.cpp.

void QgsProcessingMultiStepFeedback::setProgressText ( const QString & text )

overridevirtual

Sets a progress report text string.

This can be used in conjunction with setProgress() to provide detailed progress reports, such as "Transformed 4 of 5 layers".

See also: setProgress()

Reimplemented from QgsProcessingFeedback.

Definition at line 34 of file qgsprocessingfeedback.cpp.

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

/build/qgis-3.4.15+24xenial/src/core/processing/qgsprocessingfeedback.h
/build/qgis-3.4.15+24xenial/src/core/processing/qgsprocessingfeedback.cpp