QGIS API Documentation  3.17.0-Master (8af46bc54f)
qgsrelationcontext.cpp
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1 /***************************************************************************
2  qgsrelationcontext.cpp
3  --------------------------------------
4  Date : 20.12.2019
5  Copyright : (C) 2019 David Marteau
6  Email : dmarteau at 3liz 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  ***************************************************************************/
15 #include "qgsproject.h"
16 #include "qgsrelationcontext.h"
17 
19  : mProject( project )
20 {
21 }
22 
24 
26  : mProject( other.mProject )
27 {
28 }
29 
31 {
32  mProject = other.mProject;
33  return *this;
34 }
35 
37 {
38  if ( mProject )
39  {
40  return mProject;
41  }
42 
43  // Fallback to qgis instance
44  return QgsProject::instance();
45 }
46 
const QgsProject * project() const
Gets the associated project.
QgsRelationContext & operator=(const QgsRelationContext &other)
Assignment operator.
Context for relations.
Encapsulates a QGIS project, including sets of map layers and their styles, layouts, annotations, canvases, etc.
Definition: qgsproject.h:94
static QgsProject * instance()
Returns the QgsProject singleton instance.
Definition: qgsproject.cpp:469
QgsRelationContext(QgsProject *project=nullptr)
Constructor for QgsRelationContext.