qgsgeometrygapcheck.h

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/***************************************************************************
    qgsgeometrygapcheck.h
    ---------------------
    begin                : September 2015
    copyright            : (C) 2014 by Sandro Mani / Sourcepole AG
    email                : smani at sourcepole dot 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 QGS_GEOMETRY_GAP_CHECK_H
#define QGS_GEOMETRY_GAP_CHECK_H
 
#include "qgsfeatureid.h"
#include "qgsgeometrycheck.h"
#include "qgsgeometrycheckerror.h"
 
#define SIP_NO_FILE

class ANALYSIS_EXPORT QgsGeometryGapCheckError : public QgsGeometryCheckError
{
  public:
    QgsGeometryGapCheckError(
      const QgsGeometryCheck *check, const QString &layerId, const QgsGeometry &geometry, const QMap<QString, QgsFeatureIds> &neighbors, double area, const QgsRectangle &gapAreaBBox, const QgsRectangle &contextArea
    )
      : QgsGeometryCheckError( check, layerId, FID_NULL, geometry, geometry.constGet()->centroid(), QgsVertexId(), area, ValueArea )
      , mNeighbors( neighbors )
      , mGapAreaBBox( gapAreaBBox )
      , mContextBoundingBox( contextArea )
    {}
 
    QgsRectangle contextBoundingBox() const override;

    const QMap<QString, QgsFeatureIds> &neighbors() const { return mNeighbors; }
 
    bool isEqual( QgsGeometryCheckError *other ) const override;
 
    bool closeMatch( QgsGeometryCheckError *other ) const override;
 
    void update( const QgsGeometryCheckError *other ) override;
 
    bool handleChanges( const QgsGeometryCheck::Changes & /*changes*/ ) override;
 
    QgsRectangle affectedAreaBBox() const override;
 
    QMap<QString, QgsFeatureIds> involvedFeatures() const override;
 
    QIcon icon() const override;
 
  private:
    QMap<QString, QgsFeatureIds> mNeighbors;
    QgsRectangle mGapAreaBBox;
    QgsRectangle mContextBoundingBox;
};
 

class ANALYSIS_EXPORT QgsGeometryGapCheck : public QgsGeometryCheck
{
    Q_GADGET
    Q_DECLARE_TR_FUNCTIONS( QgsGeometryGapCheck )
 
  public:
    enum ResolutionMethod
    {
      MergeLongestEdge, 
      NoChange,         
      AddToAllowedGaps, 
      CreateNewFeature, 
      MergeLargestArea, 
    };
    Q_ENUM( ResolutionMethod )
 
    
    explicit QgsGeometryGapCheck( const QgsGeometryCheckContext *context, const QVariantMap &configuration );
 
    void prepare( const QgsGeometryCheckContext *context, const QVariantMap &configuration ) override;
 
    QList<Qgis::GeometryType> compatibleGeometryTypes() const override { return factoryCompatibleGeometryTypes(); }
    QgsGeometryCheck::Result collectErrors(
      const QMap<QString, QgsFeaturePool *> &featurePools, QList<QgsGeometryCheckError *> &errors, QStringList &messages, QgsFeedback *feedback, const LayerFeatureIds &ids = LayerFeatureIds()
    ) const override;
    void fixError( const QMap<QString, QgsFeaturePool *> &featurePools, QgsGeometryCheckError *error, int method, const QMap<QString, int> &mergeAttributeIndices, Changes &changes ) const override;
    Q_DECL_DEPRECATED QStringList resolutionMethods() const override;
 
    QList<QgsGeometryCheckResolutionMethod> availableResolutionMethods() const override;
 
    QString description() const override;
    QString id() const override;
    QgsGeometryCheck::Flags flags() const override;
    QgsGeometryCheck::CheckType checkType() const override { return factoryCheckType(); }

    static QString factoryDescription() SIP_SKIP;
    static QString factoryId() SIP_SKIP;
    static QgsGeometryCheck::Flags factoryFlags() SIP_SKIP;
    static QList<Qgis::GeometryType> factoryCompatibleGeometryTypes() SIP_SKIP;
    static bool factoryIsCompatible( QgsVectorLayer *layer ) SIP_SKIP;
    static QgsGeometryCheck::CheckType factoryCheckType() SIP_SKIP;
 
  private:
    enum Condition
    {
      LongestSharedEdge,
      LargestArea
    };
 
    bool mergeWithNeighbor( const QMap<QString, QgsFeaturePool *> &featurePools, QgsGeometryGapCheckError *err, Changes &changes, QString &errMsg, Condition condition ) const;
 
    const double mGapThresholdMapUnits;
    QgsWeakMapLayerPointer mAllowedGapsLayer;
    std::unique_ptr<QgsVectorLayerFeatureSource> mAllowedGapsSource;
    double mAllowedGapsBuffer = 0;
};
 
#endif // QGS_GEOMETRY_GAP_CHECK_H