void QgsDoubleBoxScaleBarRenderer::draw( QgsRenderContext &context, const QgsScaleBarSettings &settings, const ScaleBarContext &scaleContext ) const
{
if ( !context.painter() )
{
return;
}
QPainter *painter = context.painter();
double barTopPosition = QgsComposerUtils::fontAscentMM( settings.font() ) + settings.labelBarSpace() + settings.boxContentSpace();
double segmentHeight = settings.height() / 2;
painter->save();
if ( context.flags() & QgsRenderContext::Antialiasing )
painter->setRenderHint( QPainter::Antialiasing, true );
painter->setPen( settings.pen() );
bool useColor = true; //alternate brush color/white
double xOffset = firstLabelXOffset( settings );
QList<double> positions = segmentPositions( scaleContext, settings );
QList<double> widths = segmentWidths( scaleContext, settings );
for ( int i = 0; i < positions.size(); ++i )
{
//draw top half
if ( useColor )
{
painter->setBrush( settings.brush() );
}
else //secondary color
{
painter->setBrush( settings.brush2() );
}
QRectF segmentRectTop( positions.at( i ) + xOffset, barTopPosition, widths.at( i ), segmentHeight );
painter->drawRect( segmentRectTop );
//draw bottom half
if ( useColor )
{
//secondary color
painter->setBrush( settings.brush2() );
}
else //primary color
{
painter->setBrush( settings.brush() );
}
QRectF segmentRectBottom( positions.at( i ) + xOffset, barTopPosition + segmentHeight, widths.at( i ), segmentHeight );
painter->drawRect( segmentRectBottom );
useColor = !useColor;
}
painter->restore();
//draw labels using the default method
drawDefaultLabels( context, settings, scaleContext );
}
void QgsDoubleBoxScaleBarStyle::draw( QPainter* p, double xOffset ) const
{
if ( !mScaleBar )
{
return;
}
double barTopPosition = QgsComposerUtils::fontAscentMM( mScaleBar->font() ) + mScaleBar->labelBarSpace() + mScaleBar->boxContentSpace();
double segmentHeight = mScaleBar->height() / 2;
p->save();
//antialiasing on
p->setRenderHint( QPainter::Antialiasing, true );
p->setPen( mScaleBar->pen() );
QList<QPair<double, double> > segmentInfo;
mScaleBar->segmentPositions( segmentInfo );
bool useColor = true; //alternate brush color/white
QList<QPair<double, double> >::const_iterator segmentIt = segmentInfo.constBegin();
for ( ; segmentIt != segmentInfo.constEnd(); ++segmentIt )
{
//draw top half
if ( useColor )
{
p->setBrush( mScaleBar->brush() );
}
else //secondary color
{
p->setBrush( mScaleBar->brush2() );
}
QRectF segmentRectTop( segmentIt->first + xOffset, barTopPosition, segmentIt->second, segmentHeight );
p->drawRect( segmentRectTop );
//draw bottom half
if ( useColor )
{
//secondary color
p->setBrush( mScaleBar->brush2() );
}
else //primary color
{
p->setBrush( mScaleBar->brush() );
}
QRectF segmentRectBottom( segmentIt->first + xOffset, barTopPosition + segmentHeight, segmentIt->second, segmentHeight );
p->drawRect( segmentRectBottom );
useColor = !useColor;
}
p->restore();
//draw labels using the default method
drawLabels( p );
}