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64 lines
2.2 KiB
C++
64 lines
2.2 KiB
C++
/***************************************************************************
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qgsmaptooladdcircle.h - map tool for adding circle
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---------------------
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begin : July 2017
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copyright : (C) 2017
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email : lbartoletti at tuxfamily dot org
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***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************/
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#ifndef QGSMAPTOOLADDCIRCLE_H
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#define QGSMAPTOOLADDCIRCLE_H
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#include "qgsmaptoolcapture.h"
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#include "qgscircle.h"
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class QgsGeometryRubberBand;
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struct EdgesOnlyFilter : public QgsPointLocator::MatchFilter
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{
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bool acceptMatch( const QgsPointLocator::Match &m ) override { return m.hasEdge(); }
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};
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class QgsMapToolAddCircle: public QgsMapToolCapture
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{
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Q_OBJECT
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public:
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QgsMapToolAddCircle( QgsMapToolCapture *parentTool, QgsMapCanvas *canvas, CaptureMode mode = CaptureLine );
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~QgsMapToolAddCircle();
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void keyPressEvent( QKeyEvent *e ) override;
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void keyReleaseEvent( QKeyEvent *e ) override;
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void deactivate() override;
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void activate() override;
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protected:
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explicit QgsMapToolAddCircle( QgsMapCanvas *canvas ) = delete; //forbidden
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/**
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* The parent map tool, e.g. the add feature tool.
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* Completed circle will be added to this tool by calling its addCurve() method.
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**/
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QgsMapToolCapture *mParentTool = nullptr;
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//! Circle points (in map coordinates)
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QgsPointSequence mPoints;
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//! The rubberband to show the circular string currently working on
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QgsGeometryRubberBand *mTempRubberBand = nullptr;
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//! Circle
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QgsCircle mCircle;
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private:
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//! convenient method to clean members
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void clean();
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};
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#endif // QGSMAPTOOLADDCIRCLE_H
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