void AbstractDiagram::paintMarker( QPainter* painter,
const DataValueAttributes& a,
const QModelIndex& index,
const QPointF& pos )
{
if ( !checkInvariants() || !a.isVisible() ) return;
const MarkerAttributes ma = a.markerAttributes();
if ( !ma.isVisible() ) return;
const PainterSaver painterSaver( painter );
QSizeF maSize = ma.markerSize();
const qreal diagramWidth = d->diagramSize.width();
const qreal diagramHeight = d->diagramSize.height();
switch( ma.markerSizeMode() ) {
case MarkerAttributes::AbsoluteSize:
// Unscaled, i.e. without the painter's "zoom"
maSize.rwidth() /= painter->matrix().m11();
maSize.rheight() /= painter->matrix().m22();
break;
case MarkerAttributes::AbsoluteSizeScaled:
// Keep maSize as is. It is specified directly in pixels and desired
// to be effected by the painter's "zoom".
break;
case MarkerAttributes::RelativeToDiagramWidth:
maSize *= diagramWidth;
break;
case MarkerAttributes::RelativeToDiagramHeight:
maSize *= diagramHeight;
break;
case MarkerAttributes::RelativeToDiagramWidthHeightMin:
maSize *= qMin( diagramWidth, diagramHeight );
break;
}
QBrush indexBrush( brush( index ) );
QPen indexPen( ma.pen() );
if ( ma.markerColor().isValid() )
indexBrush.setColor( ma.markerColor() );
paintMarker( painter, ma, indexBrush, indexPen, pos, maSize );
// workaround: BC cannot be changed, otherwise we would pass the
// index down to next-lower paintMarker function. So far, we
// basically save a circle of radius maSize at pos in the
// reverseMapper. This means that ^^^ this version of paintMarker
// needs to be called to reverse-map the marker.
d->reverseMapper.addCircle( index.row(), index.column(), pos, 2 * maSize );
}
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 KDChart::MarkerLayoutItem::paintIntoRect(
QPainter* painter,
const QRect& rect,
AbstractDiagram* diagram,
const MarkerAttributes& marker,
const QBrush& brush,
const QPen& pen )
{
if( ! rect.isValid() )
return;
// The layout management may assign a larger rect than what we
// wanted. We need to adjust the position.
const QSize siz = marker.markerSize().toSize();
QPointF pos = rect.topLeft();
pos += QPointF( static_cast<qreal>(( rect.width() - siz.width()) / 2.0 ),
static_cast<qreal>(( rect.height() - siz.height()) / 2.0 ) );
#ifdef DEBUG_ITEMS_PAINT
QPointF oldPos = pos;
#endif
// And finally, drawMarker() assumes the position to be the center
// of the marker, adjust again.
pos += QPointF( static_cast<qreal>( siz.width() ) / 2.0,
static_cast<qreal>( siz.height() )/ 2.0 );
diagram->paintMarker( painter, marker, brush, pen, pos.toPoint(), siz );
#ifdef DEBUG_ITEMS_PAINT
const QPen oldPen( painter->pen() );
painter->setPen( Qt::red );
painter->drawRect( QRect(oldPos.toPoint(), siz) );
painter->setPen( oldPen );
#endif
}
