QgsProviderExtentCalcEvent Class Reference
[Core]

#include <qgsproviderextentcalcevent.h>

Collaboration diagram for QgsProviderExtentCalcEvent:

[legend]List of all members.

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Detailed Description

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

Author:

Brendan Morley

Date:

March 2005

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

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 43 of file qgsproviderextentcalcevent.h.

Public Member Functions
	QgsProviderExtentCalcEvent (QgsRectangle *layerExtent)
QgsRectangle *	layerExtent () const
Private Attributes
QgsRectangle *	le

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Constructor & Destructor Documentation

QgsProviderExtentCalcEvent::QgsProviderExtentCalcEvent

(

QgsRectangle *

layerExtent

)

Definition at line 23 of file qgsproviderextentcalcevent.cpp.

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Member Function Documentation

QgsRectangle * QgsProviderExtentCalcEvent::layerExtent

(

)

const

Definition at line 31 of file qgsproviderextentcalcevent.cpp.

References le.

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Member Data Documentation

QgsRectangle* QgsProviderExtentCalcEvent::le [private]

Definition at line 55 of file qgsproviderextentcalcevent.h.

Referenced by layerExtent().

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

• src/core/qgsproviderextentcalcevent.h
• src/core/qgsproviderextentcalcevent.cpp

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