本文整理汇总了C++中QBrush::matrix方法的典型用法代码示例。如果您正苦于以下问题：C++ QBrush::matrix方法的具体用法？C++ QBrush::matrix怎么用？C++ QBrush::matrix使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类QBrush的用法示例。
在下文中一共展示了QBrush::matrix方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: paintMarker
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 );
//.........这里部分代码省略.........