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/**
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**
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** @RDE_HEADER@
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** Implementation of base class for rubberband frame handles
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** $Id$
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** $HeadURL$
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** $Author$
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**
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** -----------------------------------------------------------------------------------------------
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**
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** Hardware-Environment: Intel-PC
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** Software-Environment: Windows 7, Qt 5.4. ArcGIS 10.2.5
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**
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** Language ........: C++ 11
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**
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** -----------------------------------------------------------------------------------------------
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**
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** Author ...........: Jörg Turla, SPD G, Tel. 3132
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**
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** -----------------------------------------------------------------------------------------------
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**
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** Notes .........:
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**
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** 27.03.2015, JT : First edition for use with Qt5
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**
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** -----------------------------------------------------------------------------------------------
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*/
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#include "rubberband_frame_handle.h"
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#include <MathUtils/math_const.h>
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#include <arcgis/Map.h>
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#include <arcgis/MapGraphicsView.h>
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#include <QtWidgets/QGraphicsScene>
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namespace SituationMap { namespace RB
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{
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static QGraphicsPolygonItem * createFrameGraphic( QGraphicsScene * mapScene, qreal zBufferValue )
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{
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if (mapScene != nullptr)
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{
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QGraphicsPolygonItem * frameSymbol = new QGraphicsPolygonItem();
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frameSymbol -> setZValue( zBufferValue );
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frameSymbol -> setFlags( QGraphicsItem::ItemIgnoresTransformations );
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mapScene -> addItem( frameSymbol );
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return frameSymbol;
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}
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return nullptr;
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} /* createFrameGraphic */
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class FramePoint : public QPointF
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{
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public:
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Q_DECL_CONSTEXPR FramePoint(const QPointF &p) : QPointF(p) {}
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Q_DECL_CONSTEXPR FramePoint(qreal x, qreal y) : QPointF(x, y) {}
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FramePoint rotate(const QPointF ¢er, qreal sinA, qreal cosA) const
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{
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qreal cx = x() - center.x();
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qreal cy = y() - center.y();
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qreal px = cx*cosA - cy*sinA + center.x();
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qreal py = cy*cosA + cx*sinA + center.y();
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return FramePoint(px, py);
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} // rotate( const QPointF & center, qreal sin qreal cosA )
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FramePoint rotate(const RubberbandHandle::RubberbandCoordinate & center, qreal sinA, qreal cosA) const
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{
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return rotate(QPointF(center._mapCoordinate.x(), center._mapCoordinate.y()), sinA, cosA);
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} /* rotate */
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FramePoint rotate(qreal sinA, qreal cosA) const
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{
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return rotate(QPointF(), sinA, cosA);
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} // rotate( const QPointF & center, qreal sin qreal cosA )
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}; /* FramePoint */
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RubberbandFrameHandle::RubberbandFrameHandle( Esri::ArcGISRuntime::MapGraphicsView * mapView
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, QGraphicsScene * scene
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, qreal sceneMargin )
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: RubberbandHandle(mapView,scene)
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, _frameSymbol(nullptr)
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, _frameSceneMargin(sceneMargin)
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, _frameRotationSin(0)
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, _frameRotationCos(1)
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, _frameWidth(0)
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, _frameHeight(0)
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, _frameCenterCoordinate()
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, _mapRotateSin(0)
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, _mapRotateCos(1)
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, _drawDisabled(false)
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, _frameLineHandleList()
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{
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qreal mapRotatePhi = _mapView->mapRotation() * MathConst::pi / 180.0;
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_mapRotateSin = sin(mapRotatePhi);
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_mapRotateCos = cos(mapRotatePhi);
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zBufferPlane( ZBufferPlane::FrameHandle );
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_frameSymbol = createFrameGraphic( _scene, _zBufferValue );
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if (_drawDisabled) _frameSymbol->hide();
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updateGraphic();
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} /* RubberbandFrameHandle::RubberbandFrameHandle */
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RubberbandFrameHandle::~RubberbandFrameHandle()
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{
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if (_scene)
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{
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if (_frameSymbol)
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{
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_scene->removeItem(_frameSymbol);
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delete _frameSymbol;
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}
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}
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_frameSymbol = nullptr;
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} /* RubberbandFrameHandle::~RubberbandFrameHandle */
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void RubberbandFrameHandle::buildFrameVertexCoordinates()
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{
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auto length = [](qreal x, qreal y) -> qreal { return sqrt(x*x+y*y); };
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QPointF center( _frameCenterCoordinate._mapCoordinate.x(), _frameCenterCoordinate._mapCoordinate.y());
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RubberbandCoordinate marginP( _mapView, _frameCenterCoordinate._sceneCoordinate+QPointF(_frameSceneMargin,0) );
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qreal margin = length( marginP._mapCoordinate.x()-center.x(), marginP._mapCoordinate.y()-center.y() );
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QPointF vertex[4];
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qreal frameWidth2 = _frameWidth * 0.5;
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qreal frameHeight2 = _frameHeight * 0.5;
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vertex[0] = QPointF( center.x() - frameWidth2 - margin, center.y() - frameHeight2 - margin );
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vertex[1] = QPointF( center.x() + frameWidth2 + margin, center.y() - frameHeight2 - margin );
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vertex[2] = QPointF( center.x() + frameWidth2 + margin, center.y() + frameHeight2 + margin );
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vertex[3] = QPointF( center.x() - frameWidth2 - margin, center.y() + frameHeight2 + margin );
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for (int i = 0; i < 4; ++i)
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{
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const FramePoint & v = FramePoint(vertex[i]).rotate(_frameCenterCoordinate, -_frameRotationSin, _frameRotationCos );
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_frameVertexCoordinate[i] = RubberbandCoordinate(_mapView, convert(v, _mapView->map()->spatialReference()));
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}
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// Now we have the vertex coordinates in map coordinate system
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} /* RubberbandFrameHandle::buildFrameVertexCoordinates */
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void RubberbandFrameHandle::adjustCoordinates()
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{
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qreal mapRotatePhi = _mapView->mapRotation() * MathConst::pi / 180.0;
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_mapRotateSin = sin(mapRotatePhi);
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_mapRotateCos = cos(mapRotatePhi);
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_frameCenterCoordinate.mapToScene(_mapView);
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buildFrameVertexCoordinates();
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updateFramePolygonItem();
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emit adjusted();
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} /* RubberbandFrameHandle::adjustCoordinates */
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void RubberbandFrameHandle::adjustWindow( const QRectF& )
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{
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onDo_adjustCoordinates();
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} /* RubberbandFrameHandle::adjustWindow */
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void RubberbandFrameHandle::updateFrameShape( const QVector<RubberbandCoordinate> & vertexList, qreal sinA, qreal cosA )
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{
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DEBUG_LOG(_logger) << LOGFUNCTION << "( const QVector<RubberbandCoordinate> & vertexList, qreal sinA, qreal cosA )";
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qreal sinPhi = sinA * _mapRotateCos - cosA * _mapRotateSin; // Addition-Theorem get rotation of the frame without map rotation
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qreal cosPhi = cosA * _mapRotateCos + sinA * _mapRotateSin;
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qreal minX = std::numeric_limits<qreal>::infinity();
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qreal maxX = -std::numeric_limits<qreal>::infinity();
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qreal minY = std::numeric_limits<qreal>::infinity();
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qreal maxY = -std::numeric_limits<qreal>::infinity();
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for (const RubberbandCoordinate & vertex : vertexList)
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{
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// eliminate rotation from vertex scene coordinate
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FramePoint xy = FramePoint(vertex._sceneCoordinate.x(),vertex._sceneCoordinate.y()).rotate( -sinPhi, cosPhi );
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qreal x = xy.x();
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qreal y = xy.y();
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if (minX > x) minX = x;
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if (minY > y) minY = y;
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if (maxX < x) maxX = x;
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if (maxY < y) maxY = y;
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}
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_frameRotationSin = sinA;
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_frameRotationCos = cosA;
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// calculate rotated coordinates (map rotation) of (minX,minY), (maxX,maxY) and frame scene center
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FramePoint frameSceneV0 = FramePoint( minX , minY ).rotate( sinPhi, cosPhi );
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FramePoint frameSceneVW = FramePoint( maxX , minY ).rotate( sinPhi, cosPhi );
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FramePoint frameSceneVH = FramePoint( minX , maxY ).rotate( sinPhi, cosPhi );
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FramePoint frameSceneCenter = FramePoint( (minX+maxX)*0.5, (minY+maxY)*0.5 ).rotate( sinPhi, cosPhi );
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_frameCenterCoordinate.updateSceneCoordinate( _mapView, frameSceneCenter );
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// Calculate map coordinates of bounding rectangle
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RubberbandCoordinate frameV0( _mapView, QPointF(frameSceneV0.x(),frameSceneV0.y()) );
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RubberbandCoordinate frameVW( _mapView, QPointF(frameSceneVW.x(),frameSceneVW.y()) );
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RubberbandCoordinate frameVH( _mapView, QPointF(frameSceneVH.x(),frameSceneVH.y()) );
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auto length = []( qreal x1, qreal y1, qreal x2, qreal y2 ) -> qreal
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{
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qreal dx = x2-x1;
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qreal dy = y2-y1;
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return sqrt(dx*dx+dy*dy);
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};
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// get frame width and height in map coordinates
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_frameWidth = length( frameV0._mapCoordinate.x(), frameV0._mapCoordinate.y(), frameVW._mapCoordinate.x(), frameVW._mapCoordinate.y() );
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_frameHeight = length( frameV0._mapCoordinate.x(), frameV0._mapCoordinate.y(), frameVH._mapCoordinate.x(), frameVH._mapCoordinate.y() );
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buildFrameVertexCoordinates();
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updateFramePolygonItem();
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} /* RubberbandFrameHandle::updateFrameShape */
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void RubberbandFrameHandle::updateFrameShape()
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{
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DEBUG_LOG(_logger) << LOGFUNCTION;
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buildFrameVertexCoordinates();
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updateFramePolygonItem();
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} /* RubberbandFrameHandle::updateFrameShape */
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void RubberbandFrameHandle::updateFramePolygonItem()
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{
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QPolygonF framePolygon;
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framePolygon.reserve( 4 );
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for (auto vertex : _frameVertexCoordinate)
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{
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framePolygon.append(vertex.mapToScene(_mapView));
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}
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framePolygon.append(_frameVertexCoordinate[0]._sceneCoordinate);
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_frameSymbol->setPolygon(framePolygon);
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} /* RubberbandFrameHandle::updateFramePolygonItem */
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void RubberbandFrameHandle::updateGraphic()
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{
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if (_frameSymbol)
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{
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_frameSymbol -> setPen( QPen(QColor("black"),1,Qt::PenStyle::DashDotLine) );
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_frameSymbol -> setVisible( _isVisible );
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if (isSelected())
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_frameSymbol -> setBrush( QBrush(_selectionColor) );
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else
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_frameSymbol -> setBrush( QBrush(_fillColor) );
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}
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} /* RubberbandFrameHandle::updateGraphic */
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void RubberbandFrameHandle::updateCoordinate(const QPointF & scenePosition)
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{
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_frameCenterCoordinate.updateSceneCoordinate( _mapView, scenePosition );
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updateFrameShape();
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} /* RubberbandFrameHandle::updateCoordinate */
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void RubberbandFrameHandle::moveCoordinate(const QPointF & sceneDelta)
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{
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_frameCenterCoordinate.updateSceneCoordinate( _mapView, _frameCenterCoordinate._sceneCoordinate+sceneDelta );
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updateFrameShape();
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} /* RubberbandFrameHandle::moveCoordinate */
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RubberbandHandle::RubberbandCoordinate RubberbandFrameHandle::getCoordinate() const { return _frameCenterCoordinate; }
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bool RubberbandFrameHandle::isPositionInside( const QPointF & scenePosition ) const
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{
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if (_frameSymbol)
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{
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return _frameSymbol->contains( scenePosition );
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}
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return false;
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} /* RubberbandFrameHandle::isPositionInside */
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} } /* namespace SituationMap::RB */
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