16 #ifndef QGSVALUEMAPFIELDKIT_H    17 #define QGSVALUEMAPFIELDKIT_H    19 #include "qgis_core.h"    54     QString 
id() 
const override;
    56     QString 
representValue( 
QgsVectorLayer *layer, 
int fieldIndex, 
const QVariantMap &config, 
const QVariant &cache, 
const QVariant &value ) 
const override;
    58     QVariant 
sortValue( 
QgsVectorLayer *layer, 
int fieldIndex, 
const QVariantMap &config, 
const QVariant &cache, 
const QVariant &value ) 
const override;
    61 #endif // QGSVALUEMAPFIELDKIT_H 
Represents a vector layer which manages a vector based data sets.