/*!
Render the symbol to series of points
\param painter Qt painter
\param points Positions of the symbols
\param numPoints Number of points
*/
void QwtSymbol::renderSymbols( QPainter *painter,
const QPointF *points, int numPoints ) const
{
switch ( d_data->style )
{
case QwtSymbol::Ellipse:
{
qwtDrawEllipseSymbols( painter, points, numPoints, *this );
break;
}
case QwtSymbol::Rect:
{
qwtDrawRectSymbols( painter, points, numPoints, *this );
break;
}
case QwtSymbol::Diamond:
{
qwtDrawDiamondSymbols( painter, points, numPoints, *this );
break;
}
case QwtSymbol::Cross:
{
qwtDrawLineSymbols( painter, Qt::Horizontal | Qt::Vertical,
points, numPoints, *this );
break;
}
case QwtSymbol::XCross:
{
qwtDrawXCrossSymbols( painter, points, numPoints, *this );
break;
}
case QwtSymbol::Triangle:
case QwtSymbol::UTriangle:
{
qwtDrawTriangleSymbols( painter, QwtTriangle::Up,
points, numPoints, *this );
break;
}
case QwtSymbol::DTriangle:
{
qwtDrawTriangleSymbols( painter, QwtTriangle::Down,
points, numPoints, *this );
break;
}
case QwtSymbol::RTriangle:
{
qwtDrawTriangleSymbols( painter, QwtTriangle::Right,
points, numPoints, *this );
break;
}
case QwtSymbol::LTriangle:
{
qwtDrawTriangleSymbols( painter, QwtTriangle::Left,
points, numPoints, *this );
break;
}
case QwtSymbol::HLine:
{
qwtDrawLineSymbols( painter, Qt::Horizontal,
points, numPoints, *this );
break;
}
case QwtSymbol::VLine:
{
qwtDrawLineSymbols( painter, Qt::Vertical,
points, numPoints, *this );
break;
}
case QwtSymbol::Star1:
{
qwtDrawStar1Symbols( painter, points, numPoints, *this );
break;
}
case QwtSymbol::Star2:
{
qwtDrawStar2Symbols( painter, points, numPoints, *this );
break;
}
case QwtSymbol::Hexagon:
{
qwtDrawHexagonSymbols( painter, points, numPoints, *this );
break;
}
case QwtSymbol::Path:
{
if ( d_data->path.graphic.isNull() )
{
d_data->path.graphic = qwtPathGraphic( d_data->path.path,
d_data->pen, d_data->brush );
}
qwtDrawGraphicSymbols( painter, points, numPoints,
d_data->path.graphic, *this );
break;
}
case QwtSymbol::Pixmap:
{
qwtDrawPixmapSymbols( painter, points, numPoints, *this );
break;
}
case QwtSymbol::Graphic:
{
qwtDrawGraphicSymbols( painter, points, numPoints,
d_data->graphic.graphic, *this );
break;
}
case QwtSymbol::SvgDocument:
{
#ifndef QWT_NO_SVG
qwtDrawSvgSymbols( painter, points, numPoints,
d_data->svg.renderer, *this );
#endif
break;
}
default:;
}
}
/*!
Draw an array of symbols
Painting several symbols is more effective than drawing symbols
one by one, as a couple of layout calculations and setting of pen/brush
can be done once for the complete array.
\param painter Painter
\param points Array of points
\param numPoints Number of points
*/
void QwtSymbol::drawSymbols( QPainter *painter,
const QPointF *points, int numPoints ) const
{
if ( numPoints <= 0 )
return;
painter->save();
switch ( d_data->style )
{
case QwtSymbol::Ellipse:
{
qwtDrawEllipseSymbols( painter, points, numPoints, *this );
break;
}
case QwtSymbol::Rect:
{
qwtDrawRectSymbols( painter, points, numPoints, *this );
break;
}
case QwtSymbol::Diamond:
{
qwtDrawDiamondSymbols( painter, points, numPoints, *this );
break;
}
case QwtSymbol::Cross:
{
qwtDrawLineSymbols( painter, Qt::Horizontal | Qt::Vertical,
points, numPoints, *this );
break;
}
case QwtSymbol::XCross:
{
qwtDrawXCrossSymbols( painter, points, numPoints, *this );
break;
}
case QwtSymbol::Triangle:
case QwtSymbol::UTriangle:
{
qwtDrawTriangleSymbols( painter, QwtTriangle::Up,
points, numPoints, *this );
break;
}
case QwtSymbol::DTriangle:
{
qwtDrawTriangleSymbols( painter, QwtTriangle::Down,
points, numPoints, *this );
break;
}
case QwtSymbol::RTriangle:
{
qwtDrawTriangleSymbols( painter, QwtTriangle::Right,
points, numPoints, *this );
break;
}
case QwtSymbol::LTriangle:
{
qwtDrawTriangleSymbols( painter, QwtTriangle::Left,
points, numPoints, *this );
break;
}
case QwtSymbol::HLine:
{
qwtDrawLineSymbols( painter, Qt::Horizontal,
points, numPoints, *this );
break;
}
case QwtSymbol::VLine:
{
qwtDrawLineSymbols( painter, Qt::Vertical,
points, numPoints, *this );
break;
}
case QwtSymbol::Star1:
{
qwtDrawStar1Symbols( painter, points, numPoints, *this );
break;
}
case QwtSymbol::Star2:
{
qwtDrawStar2Symbols( painter, points, numPoints, *this );
break;
}
case QwtSymbol::Hexagon:
{
qwtDrawHexagonSymbols( painter, points, numPoints, *this );
break;
}
default:
;
}
painter->restore();
}