void paintAreas( AbstractDiagram::Private* diagramPrivate, PaintContext* ctx, const QModelIndex& index,
const QList< QPolygonF >& areas, uint opacity )
{
AbstractDiagram* diagram = diagramPrivate->diagram;
QPainterPath path;
for ( int i = 0; i < areas.count(); ++i )
{
const QPolygonF& p = areas[ i ];
path.addPolygon( p );
diagramPrivate->reverseMapper.addPolygon( index.row(), index.column(), p );
path.closeSubpath();
}
ThreeDLineAttributes threeDAttrs = threeDLineAttributes( diagram, index );
QBrush trans = diagram->brush( index );
if ( threeDAttrs.isEnabled() ) {
trans = threeDAttrs.threeDBrush( trans, path.boundingRect() );
}
QColor transColor = trans.color();
transColor.setAlpha( opacity );
trans.setColor(transColor);
QPen indexPen = diagram->pen(index);
indexPen.setBrush( trans );
const PainterSaver painterSaver( ctx->painter() );
ctx->painter()->setRenderHint( QPainter::Antialiasing, diagram->antiAliasing() );
ctx->painter()->setPen( PrintingParameters::scalePen( indexPen ) );
ctx->painter()->setBrush( trans );
ctx->painter()->drawPath( path );
}
void paintThreeDLines( PaintContext* ctx, AbstractDiagram *diagram, const QModelIndex& index,
const QPointF& from, const QPointF& to, const ThreeDLineAttributes& tdAttributes,
ReverseMapper* reverseMapper )
{
const QPointF topLeft = project( from, tdAttributes );
const QPointF topRight = project ( to, tdAttributes );
const QPolygonF segment = QPolygonF() << from << topLeft << topRight << to;
QBrush indexBrush( diagram->brush( index ) );
indexBrush = tdAttributes.threeDBrush( indexBrush, QRectF(topLeft, topRight) );
const PainterSaver painterSaver( ctx->painter() );
ctx->painter()->setRenderHint( QPainter::Antialiasing, diagram->antiAliasing() );
ctx->painter()->setBrush( indexBrush );
ctx->painter()->setPen( PrintingParameters::scalePen( diagram->pen( index ) ) );
reverseMapper->addPolygon( index.row(), index.column(), segment );
ctx->painter()->drawPolygon( segment );
}
