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qgsmaptoolcirclecenterpoint.cpp
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qgsmaptoolcirclecenterpoint.cpp
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/***************************************************************************
qgmaptoolcirclecenterpoint.cpp - map tool for adding circle
from center and a point
---------------------
begin : July 2017
copyright : (C) 2017 by Loïc Bartoletti
email : lbartoletti at tuxfamily dot org
***************************************************************************
* *
* 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. *
* *
***************************************************************************/
#include "qgsmaptoolcirclecenterpoint.h"
#include "qgsgeometryrubberband.h"
#include "qgsmapcanvas.h"
#include "qgspoint.h"
#include "qgsmapmouseevent.h"
#include "qgssnapindicator.h"
QgsMapToolCircleCenterPoint::QgsMapToolCircleCenterPoint( QgsMapToolCapture *parentTool,
QgsMapCanvas *canvas, CaptureMode mode )
: QgsMapToolAddCircle( parentTool, canvas, mode )
{
}
void QgsMapToolCircleCenterPoint::cadCanvasReleaseEvent( QgsMapMouseEvent *e )
{
QgsPoint point = mapPoint( *e );
if ( !currentVectorLayer() )
{
notifyNotVectorLayer();
clean();
stopCapturing();
e->ignore();
return;
}
if ( e->button() == Qt::LeftButton )
{
if ( mPoints.empty() )
mPoints.append( point );
if ( !mTempRubberBand )
{
mTempRubberBand = createGeometryRubberBand( mLayerType, true );
mTempRubberBand->show();
}
}
else if ( e->button() == Qt::RightButton )
{
mPoints.append( point );
release( e );
}
}
void QgsMapToolCircleCenterPoint::cadCanvasMoveEvent( QgsMapMouseEvent *e )
{
QgsPoint point = mapPoint( *e );
mSnapIndicator->setMatch( e->mapPointMatch() );
if ( mTempRubberBand )
{
mCircle = QgsCircle().fromCenterPoint( mPoints.at( 0 ), point );
mTempRubberBand->setGeometry( mCircle.toCircularString( true ) );
}
}