bool LineAttributes::operator==( const LineAttributes& r ) const
{
return
missingValuesPolicy() == r.missingValuesPolicy() &&
displayArea() == r.displayArea() &&
transparency() == r.transparency() &&
areaBoundingDataset() == r.areaBoundingDataset();
}
void NormalLineDiagram::paint( PaintContext* ctx )
{
reverseMapper().clear();
Q_ASSERT( dynamic_cast<CartesianCoordinatePlane*>( ctx->coordinatePlane() ) );
CartesianCoordinatePlane* plane = static_cast<CartesianCoordinatePlane*>( ctx->coordinatePlane() );
const int columnCount = compressor().modelDataColumns();
const int rowCount = compressor().modelDataRows();
if ( columnCount == 0 || rowCount == 0 ) return; // maybe blank out the area?
// FIXME integrate column index retrieval to compressor:
// the compressor should only pass through visiblel columns
// int maxFound = 0;
// { // find the last column number that is not hidden
// for( int column = datasetDimension() - 1;
// column < columnCount;
// column += datasetDimension() )
// if( ! diagram()->isHidden( column ) )
// maxFound = column;
// }
// maxFound = columnCount;
// ^^^ temp
// Reverse order of data sets?
bool rev = diagram()->reverseDatasetOrder();
DataValueTextInfoList textInfoList;
LineAttributesInfoList lineList;
for( int column = rev ? columnCount - 1 : 0;
rev ? (column >= 0) : (column < columnCount);
rev ? --column : ++column ) {
LineAttributes laPreviousCell;
CartesianDiagramDataCompressor::DataPoint lastPoint;
qreal lastAreaBoundingValue = 0;
// Get min. y value, used as lower or upper bounding for area highlighting
const qreal minYValue = qMin(plane->visibleDataRange().bottom(), plane->visibleDataRange().top());
CartesianDiagramDataCompressor::CachePosition previousCellPosition;
for ( int row = 0; row < rowCount; ++row ) {
const CartesianDiagramDataCompressor::CachePosition position( row, column );
// get where to draw the line from:
CartesianDiagramDataCompressor::DataPoint point = compressor().data( position );
const QModelIndex sourceIndex = attributesModel()->mapToSource( point.index );
const LineAttributes laCell = diagram()->lineAttributes( sourceIndex );
const LineAttributes::MissingValuesPolicy policy = laCell.missingValuesPolicy();
// lower or upper bounding for the highlighted area
qreal areaBoundingValue;
if ( laCell.areaBoundingDataset() != -1 ) {
const CartesianDiagramDataCompressor::CachePosition areaBoundingCachePosition( row, laCell.areaBoundingDataset() );
areaBoundingValue = compressor().data( areaBoundingCachePosition ).value;
} else
// Use min. y value (i.e. zero line in most cases) if no bounding dataset is set
areaBoundingValue = minYValue;
if( ISNAN( point.value ) )
{
switch( policy )
{
case LineAttributes::MissingValuesAreBridged:
// we just bridge both values
continue;
case LineAttributes::MissingValuesShownAsZero:
// set it to zero
point.value = 0.0;
break;
case LineAttributes::MissingValuesHideSegments:
// they're just hidden
break;
default:
break;
// hm....
}
}
// area corners, a + b are the line ends:
const QPointF a( plane->translate( QPointF( diagram()->centerDataPoints() ? lastPoint.key + 0.5 : lastPoint.key, lastPoint.value ) ) );
const QPointF b( plane->translate( QPointF( diagram()->centerDataPoints() ? point.key + 0.5 : point.key, point.value ) ) );
const QPointF c( plane->translate( QPointF( diagram()->centerDataPoints() ? lastPoint.key + 0.5 : lastPoint.key, lastAreaBoundingValue ) ) );
const QPointF d( plane->translate( QPointF( diagram()->centerDataPoints() ? point.key + 0.5 : point.key, areaBoundingValue ) ) );
// add the line to the list:
// add data point labels:
const PositionPoints pts = PositionPoints( b, a, d, c );
// if necessary, add the area to the area list:
QList<QPolygonF> areas;
if ( !ISNAN( point.value ) && !ISNAN( lastPoint.value ) && laCell.displayArea() ) {
areas << ( QPolygonF() << a << b << d << c );//polygon;
}
// add the pieces to painting if this is not hidden:
if ( ! point.hidden && !ISNAN( point.value ) )
{
appendDataValueTextInfoToList( diagram(), textInfoList, sourceIndex, &position,
pts, Position::NorthWest, Position::SouthWest,
point.value );
paintAreas( ctx, attributesModel()->mapToSource( lastPoint.index ), areas, laCell.transparency() );
// position 0 is not really painted, since it takes two points to make a line :-)
if( row > 0 && !ISNAN( lastPoint.value ) )
lineList.append( LineAttributesInfo( sourceIndex, a, b ) );
}
// wrap it up:
previousCellPosition = position;
laPreviousCell = laCell;
lastAreaBoundingValue = areaBoundingValue;
lastPoint = point;
}
}
LineAttributes::MissingValuesPolicy policy = LineAttributes::MissingValuesAreBridged; //unused
paintElements( ctx, textInfoList, lineList, policy );
}
void NormalLineDiagram::paint( PaintContext* ctx )
{
reverseMapper().clear();
Q_ASSERT( dynamic_cast<CartesianCoordinatePlane*>( ctx->coordinatePlane() ) );
CartesianCoordinatePlane* plane = static_cast<CartesianCoordinatePlane*>( ctx->coordinatePlane() );
const int columnCount = compressor().modelDataColumns();
const int rowCount = compressor().modelDataRows();
if ( columnCount == 0 || rowCount == 0 ) return; // maybe blank out the area?
// Reverse order of data sets?
bool rev = diagram()->reverseDatasetOrder();
LabelPaintCache lpc;
LineAttributesInfoList lineList;
const int step = rev ? -1 : 1;
const int end = rev ? -1 : columnCount;
for ( int column = rev ? columnCount - 1 : 0; column != end; column += step ) {
LineAttributes laPreviousCell;
CartesianDiagramDataCompressor::DataPoint lastPoint;
qreal lastAreaBoundingValue = 0;
// Get min. y value, used as lower or upper bounding for area highlighting
const qreal minYValue = qMin(plane->visibleDataRange().bottom(), plane->visibleDataRange().top());
CartesianDiagramDataCompressor::CachePosition previousCellPosition;
for ( int row = 0; row < rowCount; ++row ) {
const CartesianDiagramDataCompressor::CachePosition position( row, column );
// get where to draw the line from:
CartesianDiagramDataCompressor::DataPoint point = compressor().data( position );
if ( point.hidden ) {
continue;
}
const QModelIndex sourceIndex = attributesModel()->mapToSource( point.index );
const LineAttributes laCell = diagram()->lineAttributes( sourceIndex );
const LineAttributes::MissingValuesPolicy policy = laCell.missingValuesPolicy();
// lower or upper bounding for the highlighted area
qreal areaBoundingValue;
if ( laCell.areaBoundingDataset() != -1 ) {
const CartesianDiagramDataCompressor::CachePosition areaBoundingCachePosition( row, laCell.areaBoundingDataset() );
areaBoundingValue = compressor().data( areaBoundingCachePosition ).value;
} else {
// Use min. y value (i.e. zero line in most cases) if no bounding dataset is set
areaBoundingValue = minYValue;
}
if ( ISNAN( point.value ) )
{
switch ( policy )
{
case LineAttributes::MissingValuesAreBridged:
// we just bridge both values
continue;
case LineAttributes::MissingValuesShownAsZero:
// set it to zero
point.value = 0.0;
break;
case LineAttributes::MissingValuesHideSegments:
// they're just hidden
break;
default:
break;
// hm....
}
}
if ( !ISNAN( point.value ) ) {
// area corners, a + b are the line ends:
const qreal offset = diagram()->centerDataPoints() ? 0.5 : 0;
const QPointF a( plane->translate( QPointF( lastPoint.key + offset, lastPoint.value ) ) );
const QPointF b( plane->translate( QPointF( point.key + offset, point.value ) ) );
const QPointF c( plane->translate( QPointF( lastPoint.key + offset, lastAreaBoundingValue ) ) );
const QPointF d( plane->translate( QPointF( point.key + offset, areaBoundingValue ) ) );
const PositionPoints pts = PositionPoints( b, a, d, c );
// add label
m_private->addLabel( &lpc, sourceIndex, &position, pts, Position::NorthWest,
Position::NorthWest, point.value );
// add line and area, if switched on and we have a current and previous value
if ( !ISNAN( lastPoint.value ) ) {
lineList.append( LineAttributesInfo( sourceIndex, a, b ) );
if ( laCell.displayArea() ) {
QList<QPolygonF> areas;
areas << ( QPolygonF() << a << b << d << c );
PaintingHelpers::paintAreas( m_private, ctx, attributesModel()->mapToSource( lastPoint.index ),
areas, laCell.transparency() );
}
}
}
previousCellPosition = position;
laPreviousCell = laCell;
lastAreaBoundingValue = areaBoundingValue;
lastPoint = point;
}
}
// paint the lines
PaintingHelpers::paintElements( m_private, ctx, lpc, lineList );
}
