QGIS API Documentation
3.16.0-Hannover (43b64b13f3)
src
core
qgsfeaturefilterprovider.h
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/***************************************************************************
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qgsfeaturefilterprovider.h
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--------------------------
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begin : 22-05-2015
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copyright : (C) 2008 by Stéphane Brunner
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email : stephane dot brunner at camptocamp dot com
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***************************************************************************/
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/***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************/
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#ifndef QGSFEATUREFILTERPROVIDER_H
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#define QGSFEATUREFILTERPROVIDER_H
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#include <QtGlobal>
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#include "
qgis_sip.h
"
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#include "qgis_core.h"
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class
QString;
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class
QgsVectorLayer
;
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class
QgsFeatureRequest
;
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class
CORE_EXPORT
QgsFeatureFilterProvider
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{
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public
:
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#ifndef SIP_RUN
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QgsFeatureFilterProvider
() =
default
;
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virtual
~QgsFeatureFilterProvider
() =
default
;
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#endif
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virtual
void
filterFeatures
(
const
QgsVectorLayer
*layer,
QgsFeatureRequest
&featureRequest )
const
= 0;
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virtual
QgsFeatureFilterProvider
*
clone
()
const
= 0
SIP_FACTORY
;
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};
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#endif
SIP_FACTORY
#define SIP_FACTORY
Definition:
qgis_sip.h:76
QgsFeatureFilterProvider::QgsFeatureFilterProvider
QgsFeatureFilterProvider()=default
Constructor.
QgsFeatureRequest
This class wraps a request for features to a vector layer (or directly its vector data provider).
Definition:
qgsfeaturerequest.h:76
QgsFeatureFilterProvider::filterFeatures
virtual void filterFeatures(const QgsVectorLayer *layer, QgsFeatureRequest &featureRequest) const =0
Add additional filters to the feature request to further restrict the features returned by the reques...
qgis_sip.h
QgsFeatureFilterProvider::~QgsFeatureFilterProvider
virtual ~QgsFeatureFilterProvider()=default
QgsVectorLayer
Represents a vector layer which manages a vector based data sets.
Definition:
qgsvectorlayer.h:387
QgsFeatureFilterProvider::clone
virtual QgsFeatureFilterProvider * clone() const =0
Create a clone of the feature filter provider.
QgsFeatureFilterProvider
Abstract interface for use by classes that filter the features of a layer.
Definition:
qgsfeaturefilterprovider.h:41
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