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add qgsEnumMap to list all entries (int, string) of enums

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This commit is contained in:
Denis Rouzaud 2018-09-12 09:30:38 -04:00
parent 827cfbc4df
commit 3b1b41f391
2 changed files with 21 additions and 0 deletions
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1
python/core/auto_generated/qgis.sip.in
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@ -132,6 +132,7 @@ Returns a double ``number``, rounded (as close as possible) to the specified num
double qgsPermissiveToDouble( QString string, bool &ok );
%Docstring
Converts a string to a double in a permissive way, e.g., allowing for incorrect

20
src/core/qgis.h
View File

@ -22,6 +22,8 @@
#include <QString>
#include <QRegExp>
#include <QMetaType>
#include <QMap>
#include <QMetaEnum>
#include <QVariant>
#include <QDateTime>
#include <QDate>
@ -387,6 +389,24 @@ namespace qgis
///@endcond
#endif
/**
* Returns a map of all enum entries.
* The map has the enum values (int) as keys and the enum keys (QString) as values.
* The enum must have been declared using Q_ENUM or Q_FLAG.
*/
template<class T> CORE_EXPORT const QMap<T, QString> qgsEnumMap() SIP_SKIP
{
QMetaEnum metaEnum = QMetaEnum::fromType<T>();
Q_ASSERT( metaEnum.isValid() );
QMap<T, QString> enumMap;
for ( int idx = 0; idx < metaEnum.keyCount(); ++idx )
{
const char *enumKey = metaEnum.key( idx );
enumMap.insert( static_cast<T>( metaEnum.keyToValue( enumKey ) ), QString( enumKey ) );
}
return enumMap;
};
/**
* Converts a string to a double in a permissive way, e.g., allowing for incorrect
* numbers of digits between thousand separators