bool ValueTrackerAttributes::operator==( const ValueTrackerAttributes& r ) const
{
return ( pen() == r.pen() &&
areaBrush() == r.areaBrush() &&
markerSize() == r.markerSize() &&
isEnabled() == r.isEnabled() );
}
void paintElements( AbstractDiagram::Private *diagramPrivate, PaintContext* ctx,
const LabelPaintCache& lpc, const LineAttributesInfoList& lineList )
{
AbstractDiagram* diagram = diagramPrivate->diagram;
// paint all lines and their attributes
const PainterSaver painterSaver( ctx->painter() );
ctx->painter()->setRenderHint( QPainter::Antialiasing, diagram->antiAliasing() );
QBrush curBrush;
QPen curPen;
QPolygonF points;
KDAB_FOREACH ( const LineAttributesInfo& lineInfo, lineList ) {
const QModelIndex& index = lineInfo.index;
const ThreeDLineAttributes td = threeDLineAttributes( diagram, index );
if ( td.isEnabled() ) {
PaintingHelpers::paintThreeDLines( ctx, diagram, index, lineInfo.value,
lineInfo.nextValue, td, &diagramPrivate->reverseMapper );
} else {
const QBrush brush( diagram->brush( index ) );
const QPen pen( diagram->pen( index ) );
// line goes from lineInfo.value to lineInfo.nextValue
diagramPrivate->reverseMapper.addLine( lineInfo.index.row(), lineInfo.index.column(),
lineInfo.value, lineInfo.nextValue );
if ( points.count() && points.last() == lineInfo.value && curBrush == brush && curPen == pen ) {
// continue the current run of lines
} else {
// different painter settings or discontinuous line: start a new run of lines
if ( points.count() ) {
PaintingHelpers::paintPolyline( ctx, curBrush, curPen, points );
}
curBrush = brush;
curPen = pen;
points.clear();
points << lineInfo.value;
}
points << lineInfo.nextValue;
}
}
if ( points.count() ) {
// the last run of lines is yet to be painted - do it now
PaintingHelpers::paintPolyline( ctx, curBrush, curPen, points );
}
KDAB_FOREACH ( const LineAttributesInfo& lineInfo, lineList ) {
const ValueTrackerAttributes vt = valueTrackerAttributes( diagram, lineInfo.index );
if ( vt.isEnabled() ) {
PaintingHelpers::paintValueTracker( ctx, vt, lineInfo.nextValue );
}
}
// paint all data value texts and the point markers
diagramPrivate->paintDataValueTextsAndMarkers( ctx, lpc, true );
}
// this method is factored out from LineDiagram::paint, and contains
// the common parts of the method that previously implemented all
// chart types in one
void LineDiagram::LineDiagramType::paintElements(
PaintContext* ctx,
DataValueTextInfoList& list,
LineAttributesInfoList& lineList,
LineAttributes::MissingValuesPolicy policy )
{
Q_UNUSED( policy );
// paint all lines and their attributes
const PainterSaver painterSaver( ctx->painter() );
if ( diagram()->antiAliasing() )
ctx->painter()->setRenderHint ( QPainter::Antialiasing );
LineAttributesInfoListIterator itline ( lineList );
QBrush curBrush;
QPen curPen;
QPolygonF points;
while ( itline.hasNext() ) {
const LineAttributesInfo& lineInfo = itline.next();
const QModelIndex& index = lineInfo.index;
const ThreeDLineAttributes td = diagram()->threeDLineAttributes( index );
const ValueTrackerAttributes vt = diagram()->valueTrackerAttributes( index );
if( td.isEnabled() ){
paintThreeDLines( ctx, index, lineInfo.value, lineInfo.nextValue, td.depth() );
} else {
const QBrush br( diagram()->brush( index ) );
const QPen pn( diagram()->pen( index ) );
if( points.count() && points.last() == lineInfo.value && curBrush == br && curPen == pn ) {
// line goes from last value in points to lineInfo.nextValue
reverseMapper().addLine( lineInfo.index.row(), lineInfo.index.column(), points.last(), lineInfo.nextValue );
points << lineInfo.nextValue;
} else {
if( points.count() )
paintPolyline( ctx, curBrush, curPen, points );
curBrush = br;
curPen = pn;
points.clear();
// line goes from lineInfo.value to lineInfo,nextValue
reverseMapper().addLine( lineInfo.index.row(), lineInfo.index.column(), lineInfo.value, lineInfo.nextValue );
points << lineInfo.value << lineInfo.nextValue;
}
}
if( vt.isEnabled() )
paintValueTracker( ctx, vt, lineInfo.value );
}
if( points.count() )
paintPolyline( ctx, curBrush, curPen, points );
// paint all data value texts and the point markers
paintDataValueTextsAndMarkers( diagram(), ctx, list, true );
}