C++ (Cpp) QgsRasterLayer::thumbnailAsPixmap Examples

Example #1

File: qgslegendlayer.cpp Project: RealworldSystems/Quantum-GIS

QPixmap QgsLegendLayer::getOriginalPixmap()
{
  QgsMapLayer* theLayer = layer();
  if ( theLayer )
  {

    if ( theLayer->type() == QgsMapLayer::VectorLayer )
    {
      QgsVectorLayer* vlayer = qobject_cast<QgsVectorLayer *>( theLayer );
      switch ( vlayer->geometryType() )
      {
        case QGis::Point:
          return QgisApp::getThemePixmap( "/mIconPointLayer.png" );
          break;
        case QGis::Line:
          return QgisApp::getThemePixmap( "/mIconLineLayer.png" );
          break;
        case QGis::Polygon:
          return QgisApp::getThemePixmap( "/mIconPolygonLayer.png" );
          break;
        case QGis::NoGeometry:
          return QgisApp::getThemePixmap( "/mIconTableLayer.png" );
        default:
          return QgisApp::getThemePixmap( "/mIconLayer.png" );
      }
    }
    else if ( theLayer->type() == QgsMapLayer::RasterLayer )
    {
      QSettings s;
      if ( s.value( "/qgis/createRasterLegendIcons", true ).toBool() )
      {
        QgsRasterLayer* rlayer = qobject_cast<QgsRasterLayer *>( theLayer );
        QPixmap myPixmap( 32, 32 );
        rlayer->thumbnailAsPixmap( &myPixmap );
        return myPixmap;
      }
      else
      {
        return QPixmap();
      }
    }
  }

  // undefined - should never reach this
  return QgisApp::getThemePixmap( "/mIconLayer.png" );
}