/* static */
void AbstractAreaBase::paintBackgroundAttributes( QPainter& painter, const QRect& rect,
const KChart::BackgroundAttributes& attributes )
{
if ( !attributes.isVisible() ) return;
/* first draw the brush (may contain a pixmap)*/
if ( Qt::NoBrush != attributes.brush().style() ) {
KChart::PainterSaver painterSaver( &painter );
painter.setPen( Qt::NoPen );
const QPointF newTopLeft( painter.deviceMatrix().map( rect.topLeft() ) );
painter.setBrushOrigin( newTopLeft );
painter.setBrush( attributes.brush() );
painter.drawRect( rect.adjusted( 0, 0, -1, -1 ) );
}
/* next draw the backPixmap over the brush */
if ( !attributes.pixmap().isNull() &&
attributes.pixmapMode() != BackgroundAttributes::BackgroundPixmapModeNone ) {
QPointF ol = rect.topLeft();
if ( BackgroundAttributes::BackgroundPixmapModeCentered == attributes.pixmapMode() )
{
ol.setX( rect.center().x() - attributes.pixmap().width() / 2 );
ol.setY( rect.center().y() - attributes.pixmap().height()/ 2 );
painter.drawPixmap( ol, attributes.pixmap() );
} else {
QMatrix m;
qreal zW = (qreal)rect.width() / (qreal)attributes.pixmap().width();
qreal zH = (qreal)rect.height() / (qreal)attributes.pixmap().height();
switch ( attributes.pixmapMode() ) {
case BackgroundAttributes::BackgroundPixmapModeScaled:
{
qreal z;
z = qMin( zW, zH );
m.scale( z, z );
}
break;
case BackgroundAttributes::BackgroundPixmapModeStretched:
m.scale( zW, zH );
break;
default:
; // Cannot happen, previously checked
}
QPixmap pm = attributes.pixmap().transformed( m );
ol.setX( rect.center().x() - pm.width() / 2 );
ol.setY( rect.center().y() - pm.height()/ 2 );
painter.drawPixmap( ol, pm );
}
}
}
QDebug operator<<(QDebug dbg, const KChart::BackgroundAttributes& ba)
{
dbg << "KChart::BackgroundAttributes("
<< "visible="<<ba.isVisible()
<< "brush="<<ba.brush()
<< "pixmapmode="<<ba.pixmapMode()
<< "pixmap="<<ba.pixmap().cacheKey()
<< ")";
return dbg;
}