QGIS API Documentation
3.4.15-Madeira (e83d02e274)
Main Page
Related Pages
Modules
Namespaces
Classes
Files
File List
File Members
src
core
qgsexpressioncontextgenerator.h
Go to the documentation of this file.
1
/***************************************************************************
2
qgsexpressioncontextgenerator.h - QgsExpressionContextGenerator
3
4
---------------------
5
begin : 1.8.2016
6
copyright : (C) 2016 by Matthias Kuhn
7
email :
[email protected]
8
***************************************************************************
9
* *
10
* This program is free software; you can redistribute it and/or modify *
11
* it under the terms of the GNU General Public License as published by *
12
* the Free Software Foundation; either version 2 of the License, or *
13
* (at your option) any later version. *
14
* *
15
***************************************************************************/
16
#ifndef QGSEXPRESSIONCONTEXTGENERATOR_H
17
#define QGSEXPRESSIONCONTEXTGENERATOR_H
18
19
#include "
qgsexpressioncontext.h
"
20
36
class
CORE_EXPORT
QgsExpressionContextGenerator
37
{
38
public
:
39
46
virtual
QgsExpressionContext
createExpressionContext()
const
= 0;
47
48
virtual
~
QgsExpressionContextGenerator
() =
default
;
49
};
50
51
#endif // QGSEXPRESSIONCONTEXTGENERATOR_H
qgsexpressioncontext.h
QgsExpressionContext
Expression contexts are used to encapsulate the parameters around which a QgsExpression should be eva...
Definition:
qgsexpressioncontext.h:375
QgsExpressionContextGenerator
Abstract interface for generating an expression context.
Definition:
qgsexpressioncontextgenerator.h:36
Generated on Sun Jan 19 2020 15:27:13 for QGIS API Documentation by
1.8.11