C++ (Cpp) QgsScaleBarSettings::font Examples

Example #1

File: qgsdoubleboxscalebarrenderer.cpp Project: enzogis/QGIS

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 );
}