Beispiel #1
0
QgsSymbolV2* QgsGraduatedSymbolRendererV2Widget::findSymbolForRange( double lowerBound, double upperBound, const QgsRangeList& ranges ) const
{
  for ( QgsRangeList::const_iterator it = ranges.begin(); it != ranges.end(); ++it )
  {
    //range string has been created with option 'f',4
    if ( doubleNear( lowerBound, it->lowerValue(), 0.0001 ) && doubleNear( upperBound, it->upperValue(), 0.0001 ) )
    {
      return it->symbol();
    }
  }
  return 0;
}
QgsSymbol *QgsGraduatedSymbolRendererWidget::findSymbolForRange( double lowerBound, double upperBound, const QgsRangeList &ranges ) const
{
  int decimalPlaces = mRenderer->labelFormat().precision() + 2;
  if ( decimalPlaces < 0 )
    decimalPlaces = 0;
  double precision = 1.0 / std::pow( 10, decimalPlaces );

  for ( QgsRangeList::const_iterator it = ranges.begin(); it != ranges.end(); ++it )
  {
    if ( qgsDoubleNear( lowerBound, it->lowerValue(), precision ) && qgsDoubleNear( upperBound, it->upperValue(), precision ) )
    {
      return it->symbol();
    }
  }
  return nullptr;
}
QgsLegendSymbolList QgsGraduatedSymbolRendererV2::legendSymbolItems()
{
  QSettings settings;
  bool showClassifiers = settings.value( "/qgis/showLegendClassifiers", false ).toBool();

  QgsLegendSymbolList lst;
  if ( showClassifiers )
  {
    lst << qMakePair( classAttribute(), ( QgsSymbolV2* )0 );
  }

  QgsRangeList::const_iterator rangeIt = mRanges.constBegin();
  for ( ; rangeIt != mRanges.constEnd(); ++rangeIt )
  {
    lst << qMakePair( rangeIt->label(), rangeIt->symbol() );
  }
  return lst;
}