QgsProviderCountCalcEvent Class Reference
[QGIS core library]

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

#include <qgsprovidercountcalcevent.h>

List of all members.

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 42 of file qgsprovidercountcalcevent.h.

---

Constructor & Destructor Documentation

QgsProviderCountCalcEvent::QgsProviderCountCalcEvent

(

long

featuresCounted

)

Definition at line 23 of file qgsprovidercountcalcevent.cpp.

---

Member Function Documentation

long QgsProviderCountCalcEvent::featuresCounted

(

)

const

Definition at line 31 of file qgsprovidercountcalcevent.cpp.

References n.

---

Member Data Documentation

long QgsProviderCountCalcEvent::n [private]

Definition at line 54 of file qgsprovidercountcalcevent.h.

Referenced by featuresCounted().

---

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

• src/core/qgsprovidercountcalcevent.h
• src/core/qgsprovidercountcalcevent.cpp