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83 lines
2.6 KiB
C++
83 lines
2.6 KiB
C++
/***************************************************************************
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qgsmaptoolrectangleextent.cpp - map tool for adding rectangle
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from extent
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---------------------
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begin : July 2017
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copyright : (C) 2017 by Loïc Bartoletti
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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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#include "qgsmaptoolrectangleextent.h"
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#include "qgsgeometryrubberband.h"
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#include "qgsgeometryutils.h"
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#include "qgsmapcanvas.h"
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#include "qgspoint.h"
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#include <QMouseEvent>
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#include <memory>
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QgsMapToolRectangleExtent::QgsMapToolRectangleExtent( QgsMapToolCapture *parentTool,
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QgsMapCanvas *canvas, CaptureMode mode )
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: QgsMapToolAddRectangle( parentTool, canvas, mode )
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{
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}
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void QgsMapToolRectangleExtent::cadCanvasReleaseEvent( QgsMapMouseEvent *e )
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{
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QgsPoint mapPoint( e->mapPoint() );
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if ( e->button() == Qt::LeftButton )
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{
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mPoints.append( mapPoint );
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if ( !mPoints.isEmpty() && !mTempRubberBand )
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{
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mTempRubberBand = createGeometryRubberBand( ( mode() == CapturePolygon ) ? QgsWkbTypes::PolygonGeometry : QgsWkbTypes::LineGeometry, true );
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mTempRubberBand->show();
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}
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}
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else if ( e->button() == Qt::RightButton )
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{
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deactivate();
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if ( mParentTool )
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{
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mParentTool->canvasReleaseEvent( e );
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}
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}
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}
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void QgsMapToolRectangleExtent::cadCanvasMoveEvent( QgsMapMouseEvent *e )
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{
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QgsPoint mapPoint( e->mapPoint() );
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if ( mTempRubberBand )
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{
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switch ( mPoints.size() )
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{
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case 1:
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{
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if ( qgsDoubleNear( mCanvas->rotation(), 0.0 ) )
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{
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mRectangle = QgsRectangle( mPoints.at( 0 ), mapPoint );
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mTempRubberBand->setGeometry( QgsMapToolAddRectangle::rectangleToPolygon( ) );
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}
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else
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{
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emit messageEmitted( tr( "Cannot use this tool when the map canvas is rotated" ), QgsMessageBar::WARNING );
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mPoints.clear();
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break;
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}
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}
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break;
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default:
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break;
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}
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}
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}
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