void StockDiagram::Private::drawOHLCBar( int dataset, const CartesianDiagramDataCompressor::DataPoint &open,
const CartesianDiagramDataCompressor::DataPoint &high,
const CartesianDiagramDataCompressor::DataPoint &low,
const CartesianDiagramDataCompressor::DataPoint &close,
PaintContext *context )
{
// Note: A row in the model is a column in a StockDiagram
const int col = low.index.row();
StockBarAttributes attr = stockDiagram()->stockBarAttributes( col );
ThreeDBarAttributes threeDAttr = stockDiagram()->threeDBarAttributes( col );
const qreal tickLength = attr.tickLength();
const QPointF leftOpenPoint( open.key + 0.5 - tickLength, open.value );
const QPointF rightOpenPoint( open.key + 0.5, open.value );
const QPointF highPoint( high.key + 0.5, high.value );
const QPointF lowPoint( low.key + 0.5, low.value );
const QPointF leftClosePoint( close.key + 0.5, close.value );
const QPointF rightClosePoint( close.key + 0.5 + tickLength, close.value );
bool reversedOrder = false;
// If 3D mode is enabled, we have to make sure the z-order is right
if ( threeDAttr.isEnabled() ) {
const int angle = threeDAttr.angle();
// Z-order is from right to left
if ( ( angle >= 0 && angle < 90 ) || ( angle >= 180 && angle < 270 ) )
reversedOrder = true;
// Z-order is from left to right
if ( ( angle >= 90 && angle < 180 ) || ( angle >= 270 && angle < 0 ) )
reversedOrder = false;
}
if ( reversedOrder ) {
if ( !open.hidden )
drawLine( dataset, col, leftOpenPoint, rightOpenPoint, context ); // Open marker
if ( !low.hidden && !high.hidden )
drawLine( dataset, col, lowPoint, highPoint, context ); // Low-High line
if ( !close.hidden )
drawLine( dataset, col, leftClosePoint, rightClosePoint, context ); // Close marker
} else {
if ( !close.hidden )
drawLine( dataset, col, leftClosePoint, rightClosePoint, context ); // Close marker
if ( !low.hidden && !high.hidden )
drawLine( dataset, col, lowPoint, highPoint, context ); // Low-High line
if ( !open.hidden )
drawLine( dataset, col, leftOpenPoint, rightOpenPoint, context ); // Open marker
}
LabelPaintCache lpc;
if ( !open.hidden ) {
addLabel( &lpc, diagram->attributesModel()->mapToSource( open.index ), 0,
PositionPoints( leftOpenPoint ), Position::South, Position::South, open.value );
}
if ( !high.hidden ) {
addLabel( &lpc, diagram->attributesModel()->mapToSource( high.index ), 0,
PositionPoints( highPoint ), Position::South, Position::South, high.value );
}
if ( !low.hidden ) {
addLabel( &lpc, diagram->attributesModel()->mapToSource( low.index ), 0,
PositionPoints( lowPoint ), Position::South, Position::South, low.value );
}
if ( !close.hidden ) {
addLabel( &lpc, diagram->attributesModel()->mapToSource( close.index ), 0,
PositionPoints( rightClosePoint ), Position::South, Position::South, close.value );
}
paintDataValueTextsAndMarkers( context, lpc, false );
}
bool StockBarAttributes::operator==( const StockBarAttributes& r ) const
{
return candlestickWidth() == r.candlestickWidth() &&
tickLength() == r.tickLength();
}
