/usr/include/qgis/qgsoptionalexpression.h is in libqgis-dev 2.18.17+dfsg-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 | /***************************************************************************
qgsoptionalexpression.h - QgsOptionalExpression
---------------------
begin : 8.9.2016
copyright : (C) 2016 by Matthias Kuhn
email : matthias@opengis.ch
***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
#ifndef QGSOPTIONALEXPRESSION_H
#define QGSOPTIONALEXPRESSION_H
#include "qgsoptional.h"
#include "qgsexpression.h"
/**
* \ingroup core
*
* An expression with an additional enabled flag.
*
* This can be used for configuration options where an expression can be enabled
* or diabled but when disabled it shouldn't lose it's information for the case
* it gets re-enabled later on and a user shouldn't be force to redo the configuration.
*
* @note Added in QGIS 2.18
*/
class CORE_EXPORT QgsOptionalExpression : public QgsOptional<QgsExpression>
{
public:
/**
* Construct a default optional expression.
* It will be disabled and with an empty expression.
*/
QgsOptionalExpression();
/**
* Construct an optional expression with the provided expression.
* It will be enabled.
*/
QgsOptionalExpression( const QgsExpression& expression );
/**
* Construct an optional expression with the provided expression and enabled state.
*/
QgsOptionalExpression( const QgsExpression& expression, bool enabled );
/**
* Save the optional expression to the provided QDomElement.
*
* The caller is responsible to pass an empty QDomElement and to append it to
* a parent element.
*
* @note Added in QGIS 2.18
*/
void writeXml( QDomElement& element );
/**
* Read the optional expression from the provided QDomElement.
*
* @note Added in QGIS 2.18
*/
void readXml( const QDomElement& element );
};
#if defined(Q_OS_WIN)
template CORE_EXPORT QgsOptional<QgsExpression>;
#endif
#endif // QGSOPTIONALEXPRESSION_H
|