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48 lines
1.7 KiB
48 lines
1.7 KiB
/**************************************************************************** |
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* |
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* (c) 2009-2020 QGROUNDCONTROL PROJECT <http://www.qgroundcontrol.org> |
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* |
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* QGroundControl is licensed according to the terms in the file |
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* COPYING.md in the root of the source code directory. |
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* |
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****************************************************************************/ |
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#pragma once |
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#include <QObject> |
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#include <QList> |
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#include <QGeoCoordinate> |
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#include <QVariant> |
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/// Routines for loading polygons or polylines from KML or SHP files. |
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class ShapeFileHelper : public QObject |
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{ |
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Q_OBJECT |
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public: |
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enum ShapeType { |
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Polygon, |
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Polyline, |
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Error |
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}; |
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Q_ENUM(ShapeType) |
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Q_PROPERTY(QStringList fileDialogKMLFilters READ fileDialogKMLFilters CONSTANT) ///< File filter list for load/save KML file dialogs |
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Q_PROPERTY(QStringList fileDialogKMLOrSHPFilters READ fileDialogKMLOrSHPFilters CONSTANT) ///< File filter list for load/save shape file dialogs |
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/// Loads the file and returns shape type and error string in a variant array. |
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/// ShapeType is in index 0, error string is in index 1. |
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Q_INVOKABLE static QVariantList determineShapeType(const QString& file); |
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QStringList fileDialogKMLFilters (void) const; |
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QStringList fileDialogKMLOrSHPFilters (void) const; |
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static ShapeType determineShapeType(const QString& file, QString& errorString); |
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static bool loadPolygonFromFile(const QString& file, QList<QGeoCoordinate>& vertices, QString& errorString); |
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static bool loadPolylineFromFile(const QString& file, QList<QGeoCoordinate>& coords, QString& errorString); |
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private: |
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static bool _fileIsKML(const QString& file, QString& errorString); |
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static const char* _errorPrefix; |
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};
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