/usr/include/qgis/qgsvectorlayereditutils.h is in libqgis-dev 2.0.1-2build2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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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(); }
/** Insert a new vertex before the given vertex number,
* in the given ring, item (first number is index 0), and feature
* Not meaningful for Point geometries
*/
bool insertVertex( double x, double y, QgsFeatureId atFeatureId, int beforeVertex );
/** Moves the vertex at the given position number,
* ring and item (first number is index 0), and feature
* to the given coordinates
*/
bool moveVertex( double x, double y, QgsFeatureId atFeatureId, int atVertex );
/** Deletes a vertex from a feature
*/
bool deleteVertex( QgsFeatureId atFeatureId, int atVertex );
/** Adds a ring to polygon/multipolygon features
@return
0 in case of success,
1 problem with feature type,
2 ring not closed,
3 ring not valid,
4 ring crosses existing rings,
5 no feature found where ring can be inserted*/
int addRing( const QList<QgsPoint>& ring );
/** Adds a new part polygon to a multipart feature
@return
0 in case of success,
1 if selected feature is not multipart,
2 if ring is not a valid geometry,
3 if new polygon ring not disjoint with existing rings,
4 if no feature was selected,
5 if several features are selected,
6 if selected geometry not found*/
int addPart( const QList<QgsPoint>& ring, QgsFeatureId featureId );
/** Translates feature by dx, dy
@param featureId id of the feature to translate
@param dx translation of x-coordinate
@param dy translation of y-coordinate
@return 0 in case of success*/
int translateFeature( QgsFeatureId featureId, double dx, double dy );
/** Splits features cut by the given line
* @param splitLine line that splits the layer features
* @param topologicalEditing true if topological editing is enabled
* @return
* 0 in case of success,
* 4 if there is a selection but no feature split
*/
int splitFeatures( const QList<QgsPoint>& splitLine, bool topologicalEditing = false );
/** Adds topological points for every vertex of the geometry.
* @param geom the geometry where each vertex is added to segments of other features
* @note geom is not going to be modified by the function
* @return 0 in case of success
*/
int addTopologicalPoints( QgsGeometry* geom );
/** Adds a vertex to segments which intersect point p but don't
* already have a vertex there. If a feature already has a vertex at position p,
* no additional vertex is inserted. This method is useful for topological
* editing.
* @param p position of the vertex
* @return 0 in case of success
*/
int addTopologicalPoints( const QgsPoint& p );
/** Inserts vertices to the snapped segments.
* This is useful for topological editing if snap to segment is enabled.
* @param snapResults results collected from the snapping operation
* @return 0 in case of success
*/
int insertSegmentVerticesForSnap( const QList<QgsSnappingResult>& snapResults );
protected:
/** Little helper function that gives bounding box from a list of points.
@return 0 in case of success */
int boundingBoxFromPointList( const QList<QgsPoint>& list, double& xmin, double& ymin, double& xmax, double& ymax ) const;
QgsVectorLayer* L;
};
#endif // QGSVECTORLAYEREDITUTILS_H
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