qgsvectorlayereditutils.h

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/***************************************************************************
    qgsvectorlayereditutils.h
    ---------------------
    begin                : Dezember 2012
    copyright            : (C) 2012 by Martin Dobias
    email                : wonder dot sk at gmail dot com
 ***************************************************************************
 *                                                                         *
 *   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 QGSVECTORLAYEREDITUTILS_H
#define QGSVECTORLAYEREDITUTILS_H


#include "qgsfeature.h"

#include "qgsvectorlayer.h"

class QgsGeometryCache;

class CORE_EXPORT QgsVectorLayerEditUtils
{
  public:
    QgsVectorLayerEditUtils( QgsVectorLayer* layer );

    inline QgsGeometryCache* cache() { return L->cache(); }


    bool insertVertex( double x, double y, QgsFeatureId atFeatureId, int beforeVertex );

    bool moveVertex( double x, double y, QgsFeatureId atFeatureId, int atVertex );

    bool deleteVertex( QgsFeatureId atFeatureId, int atVertex );

    int addRing( const QList<QgsPoint>& ring, QgsFeatureId* featureId = 0 );

    int addPart( const QList<QgsPoint>& ring, QgsFeatureId featureId );

    int translateFeature( QgsFeatureId featureId, double dx, double dy );

    int splitParts( const QList<QgsPoint>& splitLine, bool topologicalEditing = false );

    int splitFeatures( const QList<QgsPoint>& splitLine, bool topologicalEditing = false );

    int addTopologicalPoints( QgsGeometry* geom );

    int addTopologicalPoints( const QgsPoint& p );

    int insertSegmentVerticesForSnap( const QList<QgsSnappingResult>& snapResults );

  protected:

    int boundingBoxFromPointList( const QList<QgsPoint>& list, double& xmin, double& ymin, double& xmax, double& ymax ) const;

    QgsVectorLayer* L;
};

#endif // QGSVECTORLAYEREDITUTILS_H