qgsrubberband3d.h

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/***************************************************************************
  qgsrubberband3d.h
  --------------------------------------
  Date                 : June 2021
  Copyright            : (C) 2021 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 QGSRUBBERBAND3D_H
#define QGSRUBBERBAND3D_H
 
#include "qgis_3d.h"
 
#include <QColor>
 
#define SIP_NO_FILE
 
 
//
//  W A R N I N G
//  -------------
//
// This file is not part of the QGIS API.  It exists purely as an
// implementation detail.  This header file may change from version to
// version without notice, or even be removed.
//
 
#include "qgslinestring.h"
 
class QgsWindow3DEngine;
class QgsLineMaterial;
class Qgs3DMapSettings;
class QgsBillboardGeometry;
class QgsMarkerSymbol;
class QgsPoint3DBillboardMaterial;
 
namespace Qt3DCore
{
  class QEntity;
#if QT_VERSION >= QT_VERSION_CHECK( 6, 0, 0 )
  class QBuffer;
  class QGeometry;
  class QAttribute;
#endif
} // namespace Qt3DCore
 
namespace Qt3DRender
{
#if QT_VERSION < QT_VERSION_CHECK( 6, 0, 0 )
  class QBuffer;
  class QGeometry;
  class QAttribute;
#endif
  class QGeometryRenderer;
} // namespace Qt3DRender
 
class _3D_EXPORT QgsRubberBand3D
{
  public:
    enum MarkerType
    {
 
      Square,
 
      Circle
    };
 
    QgsRubberBand3D( Qgs3DMapSettings &map, QgsWindow3DEngine *engine, Qt3DCore::QEntity *parentEntity, Qgis::GeometryType geometryType = Qgis::GeometryType::Line );
    ~QgsRubberBand3D();
 
    float width() const;
 
    void setWidth( float width );
 
    QColor color() const;
 
    void setColor( QColor color );
 
    void setMarkerType( MarkerType marker );
 
    MarkerType markerType() const;
 
    void reset();
 
    void addPoint( const QgsPoint &pt );
 
    void setPoints( const QgsLineString &points );
 
    void removeLastPoint();
 
    void moveLastPoint( const QgsPoint &pt );
 
    void setHideLastMarker( bool hide ) { mHideLastMarker = hide; }
 
    bool isEmpty() const { return mLineString.isEmpty(); }
 
  private:
    void updateGeometry();
    void updateMarkerMaterial();
 
  private:
    QgsLineString mLineString;
    bool mHideLastMarker = false;
 
    Qgs3DMapSettings *mMapSettings = nullptr; // not owned
    QgsWindow3DEngine *mEngine = nullptr;
    Qgis::GeometryType mGeometryType = Qgis::GeometryType::Line;
 
    MarkerType mMarkerType = Circle;
    float mWidth = 3.f;
    QColor mColor = Qt::red;
 
    Qt3DCore::QEntity *mLineEntity = nullptr;   // owned by parentEntity (from constructor)
    Qt3DCore::QEntity *mMarkerEntity = nullptr; // owned by parentEntity (from constructor)
 
    // all these are owned by mLineEntity
    Qt3DRender::QGeometryRenderer *mLineGeomRenderer = nullptr;
#if QT_VERSION < QT_VERSION_CHECK( 6, 0, 0 )
    Qt3DRender::QGeometry *mGeometry = nullptr;
    Qt3DRender::QAttribute *mPositionAttribute = nullptr;
    Qt3DRender::QAttribute *mIndexAttribute = nullptr;
#else
    Qt3DCore::QGeometry *mGeometry = nullptr;
    Qt3DCore::QAttribute *mPositionAttribute = nullptr;
    Qt3DCore::QAttribute *mIndexAttribute = nullptr;
#endif
    QgsLineMaterial *mLineMaterial = nullptr;
 
    // and these are owned by mMarkerEntity
    Qt3DRender::QGeometryRenderer *mMarkerGeometryRenderer = nullptr;
    QgsBillboardGeometry *mMarkerGeometry = nullptr;
    QgsPoint3DBillboardMaterial *mMarkerMaterial = nullptr;
 
    std::unique_ptr<QgsMarkerSymbol> mMarkerSymbol;
 
    // Disable copying as we have pointer members.
    QgsRubberBand3D( const QgsRubberBand3D & ) = delete;
    QgsRubberBand3D &operator=( const QgsRubberBand3D & ) = delete;
};
 
 
#endif // QGSRUBBERBAND3D_H