qgsmaptoolcapturerubberband.h

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/***************************************************************************
    qgsmaptoolcapturerubberband.h  -  map tool for capturing points, lines, polygons
    ---------------------
    begin                : January 2022
    copyright            : (C) Denis Rouzaud
    email                : denis@opengis.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 QGSMAPTOOLCAPTURERUBBERBAND_H
#define QGSMAPTOOLCAPTURERUBBERBAND_H
 
 
#include <memory>
 
#include "qgsgeometryrubberband.h"
 
#define SIP_NO_FILE
 
class QgsMapToolCaptureRubberBand;
class QgsRubberBand;
 


class GUI_EXPORT QgsMapToolCaptureRubberBand : public QgsGeometryRubberBand
{
  public:
    QgsMapToolCaptureRubberBand( QgsMapCanvas *mapCanvas, Qgis::GeometryType geomType = Qgis::GeometryType::Line );

    ~QgsMapToolCaptureRubberBand() override;

    QgsCurve *curve() SIP_FACTORY;

    bool curveIsComplete() const;

    void reset( Qgis::GeometryType geomType = Qgis::GeometryType::Line, Qgis::WkbType stringType = Qgis::WkbType::LineString, const QgsPoint &firstPolygonPoint = QgsPoint() );

    void setRubberBandGeometryType( Qgis::GeometryType geomType );

    void addPoint( const QgsPoint &point, bool doUpdate = true );

    void movePoint( const QgsPoint &point );

    void movePoint( int index, const QgsPoint &point );

    int pointsCount() const;

    Qgis::WkbType stringType() const;

    void setStringType( Qgis::WkbType type );

    QgsPoint lastPoint() const;

    QgsPoint pointFromEnd( int posFromEnd ) const;

    void removeLastPoint();

    double weight( int index ) const;

    bool setWeight( int index, double weight );

    const QVector<double> &weights() const { return mWeights; }
 
  private:
    Qgis::WkbType mStringType = Qgis::WkbType::LineString;
 
    void setGeometry( QgsAbstractGeometry *geom ) override;
    void updateCurve();
 
    QgsCurve *createLinearString();
    QgsCurve *createCircularString();
    QgsCurve *createNurbsCurve();
 
    QgsPointSequence mPoints;
    QVector<double> mWeights; 
    QgsPoint mFirstPolygonPoint;
    std::unique_ptr<QgsRubberBand> mControlPolygonRubberBand;
 
    void updateControlPolygon();
};

 
#endif