QgsProviderCountCalcEvent Class Reference

A custom event that is designed to be fired when a layer count has been fully calculated. More...

#include <qgsprovidercountcalcevent.h>

Public Member Functions
	QgsProviderCountCalcEvent (long featuresCounted)
long	featuresCounted () const

Private Attributes
long	n

Detailed Description

A custom event that is designed to be fired when a layer count has been fully calculated.

Author

Brendan Morley

Date

March 2005

This custom QEvent is designed to be fired when the full item count of a layer has been calculated. It was initially included in QGIS to help the QgsPostgresProvider provide the asynchronous calculation of PostgreSQL layer counts.

Events are used instead of Qt signals/slots as events can be received asynchronously, which makes for better mutlithreading behaviour and less opportunity for programmer mishap.

Definition at line 41 of file qgsprovidercountcalcevent.h.

Constructor & Destructor Documentation

QgsProviderCountCalcEvent::QgsProviderCountCalcEvent

(

long

featuresCounted

)

Definition at line 22 of file qgsprovidercountcalcevent.cpp.

Member Function Documentation

long QgsProviderCountCalcEvent::featuresCounted

(

)

const

Definition at line 30 of file qgsprovidercountcalcevent.cpp.

References n.

Member Data Documentation

long QgsProviderCountCalcEvent::n

private

Definition at line 53 of file qgsprovidercountcalcevent.h.

Referenced by featuresCounted().

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

• /tmp/buildd/qgis-2.0.1/src/core/qgsprovidercountcalcevent.h
• /tmp/buildd/qgis-2.0.1/src/core/qgsprovidercountcalcevent.cpp