QDebug operator<<( QDebug dbg, const MarkerAttributes & ma ) {
return dbg << "KDChart::MarkerAttributes("
<< "visible=" << ma.isVisible()
<< "markerStylesMap=" << ma.markerStylesMap()
<< "markerStyle=" << ma.markerStyle()
<< "markerColor=" << ma.markerColor()
<< "pen=" << ma.pen()
<< ")";
}
bool MarkerAttributes::operator==( const MarkerAttributes& r ) const
{
/*
qDebug() << "MarkerAttributes::operator== finds"
<< "b" << (isVisible() == r.isVisible())
<< "c" << (markerStylesMap() == r.markerStylesMap())
<< "d" << (markerStyle() == r.markerStyle()) << markerStyle() <<r.markerStyle()
<< "e" << (markerSize() == r.markerSize())
<< "f" << (markerColor() == r.markerColor())
<< "g" << (pen() == r.pen())
<< "h" << (markerColor() == r.markerColor()) << markerColor() << r.markerColor();
*/
return ( isVisible() == r.isVisible() &&
markerStylesMap() == r.markerStylesMap() &&
markerStyle() == r.markerStyle() &&
markerSize() == r.markerSize() &&
markerColor() == r.markerColor() &&
pen() == r.pen() );
}
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 );
}
