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61 lines
2.3 KiB
C++
61 lines
2.3 KiB
C++
/***************************************************************************
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qgsmaptoolrotatelabel.h
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-----------------------
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begin : 2010-11-09
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copyright : (C) 2010 by Marco Hugentobler
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email : marco dot hugentobler at sourcepole dot ch
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***************************************************************************/
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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 QGSMAPTOOLROTATELABEL_H
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#define QGSMAPTOOLROTATELABEL_H
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#include "qgsmaptoollabel.h"
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#include "qgis_app.h"
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class QgsPointRotationItem;
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class APP_EXPORT QgsMapToolRotateLabel: public QgsMapToolLabel
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{
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Q_OBJECT
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public:
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QgsMapToolRotateLabel( QgsMapCanvas *canvas );
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~QgsMapToolRotateLabel() override;
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void canvasMoveEvent( QgsMapMouseEvent *e ) override;
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void canvasPressEvent( QgsMapMouseEvent *e ) override;
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void keyReleaseEvent( QKeyEvent *e ) override;
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protected:
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static int roundTo15Degrees( double n );
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//! Converts azimuth value so that 0 is corresponds to East
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static double convertAzimuth( double a );
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QgsRubberBand *createRotationPreviewBox();
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void setRotationPreviewBox( double rotation );
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//! Rotates input point clockwise around centerPoint
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QgsPointXY rotatePointClockwise( const QgsPointXY &input, const QgsPointXY ¢erPoint, double degrees ) const;
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double mStartRotation; //rotation value prior to start rotating
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double mCurrentRotation;
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double mCurrentMouseAzimuth;
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QgsPointXY mRotationPoint;
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QgsPointRotationItem *mRotationItem = nullptr;
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QgsRubberBand *mRotationPreviewBox = nullptr;
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//! True if ctrl was pressed during the last mouse move event
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bool mCtrlPressed;
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};
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#endif // QGSMAPTOOLROTATELABEL_H
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