QgsPythonRunner Class Reference

Utility class for running python commands from various parts of QGIS. More...

#include <qgspythonrunner.h>

Collaboration diagram for QgsPythonRunner:

Static Public Member Functions
static bool	isValid ()
	returns true if the runner has an instance (and thus is able to run commands)
static bool	run (QString command, QString messageOnError=QString())
	execute a python statement
static bool	eval (QString command, QString &result)
	Eval a python statement.
static void	setInstance (QgsPythonRunner *runner)
	assign an instance of python runner so that run() can be used.

Protected Member Functions
	QgsPythonRunner ()
	protected constructor: can be instantiated only from children
virtual	~QgsPythonRunner ()
virtual bool	runCommand (QString command, QString messageOnError=QString())=0
virtual bool	evalCommand (QString command, QString &result)=0

Static Protected Attributes
static QgsPythonRunner *	mInstance = NULL

Detailed Description

Utility class for running python commands from various parts of QGIS.

There is no direct python support in the core library, so it is expected that application with python support creates a subclass that implements pure virtual function(s) during the initialization. The static methods will then work as expected.

Added in QGIS v?

Definition at line 29 of file qgspythonrunner.h.

Constructor & Destructor Documentation

QgsPythonRunner::QgsPythonRunner ( )

protected

protected constructor: can be instantiated only from children

Definition at line 64 of file qgspythonrunner.cpp.

QgsPythonRunner::~QgsPythonRunner ( )

protectedvirtual

Definition at line 68 of file qgspythonrunner.cpp.

Member Function Documentation

bool QgsPythonRunner::eval ( QString  command, QString &  result  )

static

Eval a python statement.

Definition at line 42 of file qgspythonrunner.cpp.

References evalCommand(), mInstance, and QgsDebugMsg.

virtual bool QgsPythonRunner::evalCommand ( QString  command, QString &  result  )

protectedpure virtual

Referenced by eval().

bool QgsPythonRunner::isValid ( )

static

returns true if the runner has an instance (and thus is able to run commands)

Definition at line 23 of file qgspythonrunner.cpp.

References mInstance.

bool QgsPythonRunner::run ( QString  command, QString  messageOnError = QString()  )

static

execute a python statement

Definition at line 28 of file qgspythonrunner.cpp.

References mInstance, QgsDebugMsg, and runCommand().

Referenced by QgsAttributeDialog::dialogDestroyed(), QgsAttributeDialog::init(), and QgsAttributeAction::runAction().

virtual bool QgsPythonRunner::runCommand ( QString  command, QString  messageOnError = QString()  )

protectedpure virtual

Referenced by run().

void QgsPythonRunner::setInstance ( QgsPythonRunner *  runner )

static

assign an instance of python runner so that run() can be used.

This method should be called during app initialization. Takes ownership of the object, deletes previous instance.

Definition at line 55 of file qgspythonrunner.cpp.

References mInstance.

Member Data Documentation

QgsPythonRunner * QgsPythonRunner::mInstance = NULL

staticprotected

Definition at line 57 of file qgspythonrunner.h.

Referenced by eval(), isValid(), run(), and setInstance().

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

• /tmp/buildd/qgis-2.2.0+wheezy1/src/core/qgspythonrunner.h
• /tmp/buildd/qgis-2.2.0+wheezy1/src/core/qgspythonrunner.cpp