void AbstractDiagram::paintMarker( QPainter* painter, const MarkerAttributes& markerAttributes, const QBrush& brush, const QPen& pen, const QPointF& pos, const QSizeF& maSize ) { const QPen oldPen( painter->pen() ); // Pen is used to paint 4Pixels - 1 Pixel - Ring and FastCross types. // make sure to use the brush color - see above in those cases. const bool isFourPixels = (markerAttributes.markerStyle() == MarkerAttributes::Marker4Pixels); if( isFourPixels || (markerAttributes.markerStyle() == MarkerAttributes::Marker1Pixel) ){ // for high-performance point charts with tiny point markers: painter->setPen( PrintingParameters::scalePen( QPen( brush.color().light() ) ) ); if( isFourPixels ){ const qreal x = pos.x(); const qreal y = pos.y(); painter->drawLine( QPointF(x-1.0,y-1.0), QPointF(x+1.0,y-1.0) ); painter->drawLine( QPointF(x-1.0,y), QPointF(x+1.0,y) ); painter->drawLine( QPointF(x-1.0,y+1.0), QPointF(x+1.0,y+1.0) ); } painter->drawPoint( pos ); }else{ const PainterSaver painterSaver( painter ); // we only a solid line surrounding the markers QPen painterPen( pen ); painterPen.setStyle( Qt::SolidLine ); painter->setPen( PrintingParameters::scalePen( painterPen ) ); painter->setBrush( brush ); painter->setRenderHint ( QPainter::Antialiasing ); painter->translate( pos ); switch ( markerAttributes.markerStyle() ) { case MarkerAttributes::MarkerCircle: { if ( markerAttributes.threeD() ) { QRadialGradient grad; grad.setCoordinateMode( QGradient::ObjectBoundingMode ); QColor drawColor = brush.color(); grad.setCenter( 0.5, 0.5 ); grad.setRadius( 1.0 ); grad.setFocalPoint( 0.35, 0.35 ); grad.setColorAt( 0.00, drawColor.lighter( 150 ) ); grad.setColorAt( 0.20, drawColor ); grad.setColorAt( 0.50, drawColor.darker( 150 ) ); grad.setColorAt( 0.75, drawColor.darker( 200 ) ); grad.setColorAt( 0.95, drawColor.darker( 250 ) ); grad.setColorAt( 1.00, drawColor.darker( 200 ) ); QBrush newBrush( grad ); newBrush.setMatrix( brush.matrix() ); painter->setBrush( newBrush ); } painter->drawEllipse( QRectF( 0 - maSize.height()/2, 0 - maSize.width()/2, maSize.height(), maSize.width()) ); } break; case MarkerAttributes::MarkerSquare: { QRectF rect( 0 - maSize.width()/2, 0 - maSize.height()/2, maSize.width(), maSize.height() ); painter->drawRect( rect ); break; } case MarkerAttributes::MarkerDiamond: { QVector <QPointF > diamondPoints; QPointF top, left, bottom, right; top = QPointF( 0, 0 - maSize.height()/2 ); left = QPointF( 0 - maSize.width()/2, 0 ); bottom = QPointF( 0, maSize.height()/2 ); right = QPointF( maSize.width()/2, 0 ); diamondPoints << top << left << bottom << right; painter->drawPolygon( diamondPoints ); break; } // both handled on top of the method: case MarkerAttributes::Marker1Pixel: case MarkerAttributes::Marker4Pixels: break; case MarkerAttributes::MarkerRing: { painter->setPen( PrintingParameters::scalePen( QPen( brush.color() ) ) ); painter->setBrush( Qt::NoBrush ); painter->drawEllipse( QRectF( 0 - maSize.height()/2, 0 - maSize.width()/2, maSize.height(), maSize.width()) ); break; } case MarkerAttributes::MarkerCross: { // Note: Markers can have outline, // so just drawing two rects is NOT the solution here! const qreal w02 = maSize.width() * 0.2; const qreal w05 = maSize.width() * 0.5; const qreal h02 = maSize.height()* 0.2; const qreal h05 = maSize.height()* 0.5; QVector <QPointF > crossPoints; QPointF p[12]; p[ 0] = QPointF( -w02, -h05 ); p[ 1] = QPointF( w02, -h05 ); p[ 2] = QPointF( w02, -h02 ); p[ 3] = QPointF( w05, -h02 ); p[ 4] = QPointF( w05, h02 ); p[ 5] = QPointF( w02, h02 ); p[ 6] = QPointF( w02, h05 ); p[ 7] = QPointF( -w02, h05 ); p[ 8] = QPointF( -w02, h02 ); p[ 9] = QPointF( -w05, h02 ); p[10] = QPointF( -w05, -h02 ); p[11] = QPointF( -w02, -h02 ); for( int i=0; i<12; ++i ) crossPoints << p[i]; crossPoints << p[0]; painter->drawPolygon( crossPoints ); break; } case MarkerAttributes::MarkerFastCross: { QPointF left, right, top, bottom; left = QPointF( -maSize.width()/2, 0 ); right = QPointF( maSize.width()/2, 0 ); top = QPointF( 0, -maSize.height()/2 ); bottom= QPointF( 0, maSize.height()/2 ); painter->setPen( PrintingParameters::scalePen( QPen( brush.color() ) ) ); painter->drawLine( left, right ); painter->drawLine( top, bottom ); break; } case MarkerAttributes::NoMarker: break; default: Q_ASSERT_X ( false, "paintMarkers()", "Type item does not match a defined Marker Type." ); } } painter->setPen( oldPen ); }