QGIS API Documentation 3.28.0-Firenze (ed3ad0430f)
Go to the documentation of this file.
2 qgsalgorithmdifference.h
3 ---------------------
4 Date : April 2018
5 Copyright : (C) 2018 by Martin Dobias
6 Email : wonder dot sk at gmail dot com
7 ***************************************************************************
8 * *
9 * This program is free software; you can redistribute it and/or modify *
10 * it under the terms of the GNU General Public License as published by *
11 * the Free Software Foundation; either version 2 of the License, or *
12 * (at your option) any later version. *
13 * *
14 ***************************************************************************/
19#define SIP_NO_FILE
22#include "qgsapplication.h"
26class QgsDifferenceAlgorithm : public QgsProcessingAlgorithm
28 public:
29 QgsDifferenceAlgorithm() = default;
30 QIcon icon() const override { return QgsApplication::getThemeIcon( QStringLiteral( "/algorithms/mAlgorithmDifference.svg" ) ); }
31 QString svgIconPath() const override { return QgsApplication::iconPath( QStringLiteral( "/algorithms/mAlgorithmDifference.svg" ) ); }
32 QString name() const override;
33 QString displayName() const override;
34 QStringList tags() const override;
35 QString group() const override;
36 QString groupId() const override;
37 QString shortHelpString() const override;
38 bool supportInPlaceEdit( const QgsMapLayer *layer ) const override;
39 QgsProcessingAlgorithm::Flags flags() const override;
40 protected:
41 QgsProcessingAlgorithm *createInstance() const override;
42 void initAlgorithm( const QVariantMap &configuration = QVariantMap() ) override;
43 QVariantMap processAlgorithm( const QVariantMap &parameters, QgsProcessingContext &context, QgsProcessingFeedback *feedback ) override;
static QIcon getThemeIcon(const QString &name, const QColor &fillColor=QColor(), const QColor &strokeColor=QColor())
Helper to get a theme icon.
static QString iconPath(const QString &iconFile)
Returns path to the desired icon file.
Base class for all map layer types.
Definition: qgsmaplayer.h:73
Abstract base class for processing algorithms.
virtual QgsProcessingAlgorithm * createInstance() const =0
Creates a new instance of the algorithm class.
virtual QString group() const
Returns the name of the group this algorithm belongs to.
virtual QString groupId() const
Returns the unique ID of the group this algorithm belongs to.
virtual Flags flags() const
Returns the flags indicating how and when the algorithm operates and should be exposed to users.
virtual QIcon icon() const
Returns an icon for the algorithm.
virtual QString shortHelpString() const
Returns a localised short helper string for the algorithm.
virtual QVariantMap processAlgorithm(const QVariantMap &parameters, QgsProcessingContext &context, QgsProcessingFeedback *feedback) SIP_THROW(QgsProcessingException)=0
Runs the algorithm using the specified parameters.
virtual QString displayName() const =0
Returns the translated algorithm name, which should be used for any user-visible display of the algor...
virtual QStringList tags() const
Returns a list of tags which relate to the algorithm, and are used to assist users in searching for s...
virtual QString svgIconPath() const
Returns a path to an SVG version of the algorithm's icon.
virtual void initAlgorithm(const QVariantMap &configuration=QVariantMap())=0
Initializes the algorithm using the specified configuration.
virtual bool supportInPlaceEdit(const QgsMapLayer *layer) const
Checks whether this algorithm supports in-place editing on the given layer Default implementation ret...
virtual QString name() const =0
Returns the algorithm name, used for identifying the algorithm.
Contains information about the context in which a processing algorithm is executed.
Base class for providing feedback from a processing algorithm.