qgswmsprovider.cpp

一个非常好的GIS开源新版本

  QgsDebugMsg("exiting.");
}


void QgsWmsProvider::parseCapability(QDomElement const & e, QgsWmsCapabilityProperty& capabilityProperty)
{
  QgsDebugMsg("entering.");

  QDomNode n1 = e.firstChild();
  while( !n1.isNull() ) {
      QDomElement e1 = n1.toElement(); // try to convert the node to an element.
      if( !e1.isNull() ) {
          //QgsDebugMsg("  "  + e1.tagName() ); // the node really is an element.
      
          if (e1.tagName() == "Request")
          {
            parseRequest(e1, capabilityProperty.request);
          }
          else if (e1.tagName() == "Layer")
          {
            parseLayer(e1, capabilityProperty.layer);
          }
      
      }
      n1 = n1.nextSibling();
  }    

  QgsDebugMsg("exiting.");
}


void QgsWmsProvider::parseContactPersonPrimary(QDomElement const & e, QgsWmsContactPersonPrimaryProperty& contactPersonPrimaryProperty)
{
  QgsDebugMsg("entering.");

  QDomNode n1 = e.firstChild();
  while( !n1.isNull() ) {
      QDomElement e1 = n1.toElement(); // try to convert the node to an element.
      if( !e1.isNull() ) {
          if      (e1.tagName() == "ContactPerson")
          {
            contactPersonPrimaryProperty.contactPerson = e1.text();
          }
          else if (e1.tagName() == "ContactOrganization")
          {
            contactPersonPrimaryProperty.contactOrganization = e1.text();
          }
      }
      n1 = n1.nextSibling();
  }

  QgsDebugMsg("exiting.");
}


void QgsWmsProvider::parseContactAddress(QDomElement const & e, QgsWmsContactAddressProperty& contactAddressProperty)
{
  QgsDebugMsg("entering.");

  QDomNode n1 = e.firstChild();
  while( !n1.isNull() ) {
      QDomElement e1 = n1.toElement(); // try to convert the node to an element.
      if( !e1.isNull() ) {
          if      (e1.tagName() == "AddressType")
          {
            contactAddressProperty.addressType = e1.text();
          }
          else if (e1.tagName() == "Address")
          {
            contactAddressProperty.address = e1.text();
          }
          else if (e1.tagName() == "City")
          {
            contactAddressProperty.city = e1.text();
          }
          else if (e1.tagName() == "StateOrProvince")
          {
            contactAddressProperty.stateOrProvince = e1.text();
          }
          else if (e1.tagName() == "PostCode")
          {
            contactAddressProperty.postCode = e1.text();
          }
          else if (e1.tagName() == "Country")
          {
            contactAddressProperty.country = e1.text();
          }
      }
      n1 = n1.nextSibling();
  }

  QgsDebugMsg("exiting.");
}


void QgsWmsProvider::parseContactInformation(QDomElement const & e, QgsWmsContactInformationProperty& contactInformationProperty)
{
  QgsDebugMsg("entering.");

  QDomNode n1 = e.firstChild();
  while( !n1.isNull() ) {
      QDomElement e1 = n1.toElement(); // try to convert the node to an element.
      if( !e1.isNull() ) {
          if      (e1.tagName() == "ContactPersonPrimary")
          {
            parseContactPersonPrimary(e1, contactInformationProperty.contactPersonPrimary);
          }
          else if (e1.tagName() == "ContactPosition")
          {
            contactInformationProperty.contactPosition = e1.text();
          }
          else if (e1.tagName() == "ContactAddress")
          {
            parseContactAddress(e1, contactInformationProperty.contactAddress);
          }
          else if (e1.tagName() == "ContactVoiceTelephone")
          {
            contactInformationProperty.contactVoiceTelephone = e1.text();
          }
          else if (e1.tagName() == "ContactFacsimileTelephone")
          {
            contactInformationProperty.contactFacsimileTelephone = e1.text();
          }
          else if (e1.tagName() == "ContactElectronicMailAddress")
          {
            contactInformationProperty.contactElectronicMailAddress = e1.text();
          }
      }
      n1 = n1.nextSibling();
  }

  QgsDebugMsg("exiting.");
}


void QgsWmsProvider::parseOnlineResource(QDomElement const & e, QgsWmsOnlineResourceAttribute& onlineResourceAttribute)
{
  QgsDebugMsg("entering.");

  onlineResourceAttribute.xlinkHref = e.attribute("xlink:href");

  QgsDebugMsg("exiting.");
}


void QgsWmsProvider::parseKeywordList(QDomElement  const & e, QStringList& keywordListProperty)
{
  QgsDebugMsg("entering.");

  QDomNode n1 = e.firstChild();
  while( !n1.isNull() ) {
      QDomElement e1 = n1.toElement(); // try to convert the node to an element.
      if( !e1.isNull() ) {
          if (e1.tagName() == "Keyword")
          {
            QgsDebugMsg("      Keyword."); 
            keywordListProperty += e1.text();
          }
      }
      n1 = n1.nextSibling();
  }

  QgsDebugMsg("exiting.");
}


void QgsWmsProvider::parseGet(QDomElement const & e, QgsWmsGetProperty& getProperty)
{
  QgsDebugMsg("entering.");

  QDomNode n1 = e.firstChild();
  while( !n1.isNull() ) {
      QDomElement e1 = n1.toElement(); // try to convert the node to an element.
      if( !e1.isNull() ) {
          if      (e1.tagName() == "OnlineResource")
          {
            QgsDebugMsg("      OnlineResource.");
            parseOnlineResource(e1, getProperty.onlineResource);
          }
      }
      n1 = n1.nextSibling();
  }

  QgsDebugMsg("exiting.");
}


void QgsWmsProvider::parsePost(QDomElement const & e, QgsWmsPostProperty& postProperty)
{
  QgsDebugMsg("entering.");

  QDomNode n1 = e.firstChild();
  while( !n1.isNull() ) {
      QDomElement e1 = n1.toElement(); // try to convert the node to an element.
      if( !e1.isNull() ) {
          if (e1.tagName() == "OnlineResource")
          {
            QgsDebugMsg("      OnlineResource.");
            parseOnlineResource(e1, postProperty.onlineResource);
          }
      }
      n1 = n1.nextSibling();
  }

  QgsDebugMsg("exiting.");
}


void QgsWmsProvider::parseHttp(QDomElement const & e, QgsWmsHttpProperty& httpProperty)
{
  QgsDebugMsg("entering.");

  QDomNode n1 = e.firstChild();
  while( !n1.isNull() ) {
      QDomElement e1 = n1.toElement(); // try to convert the node to an element.
      if( !e1.isNull() ) {
          if      (e1.tagName() == "Get")
          {
            QgsDebugMsg("      Get.");
            parseGet(e1, httpProperty.get);
          }
          else if (e1.tagName() == "Post")
          {
            QgsDebugMsg("      Post.");
            parsePost(e1, httpProperty.post);
          }
      }
      n1 = n1.nextSibling();
  }

  QgsDebugMsg("exiting.");
}


void QgsWmsProvider::parseDcpType(QDomElement const & e, QgsWmsDcpTypeProperty& dcpType)
{
  QgsDebugMsg("entering.");

  QDomNode n1 = e.firstChild();
  while( !n1.isNull() ) {
      QDomElement e1 = n1.toElement(); // try to convert the node to an element.
      if( !e1.isNull() ) {
          if (e1.tagName() == "HTTP")
          {
            QgsDebugMsg("      HTTP."); 
            parseHttp(e1, dcpType.http);
          }
      }
      n1 = n1.nextSibling();
  }

  QgsDebugMsg("exiting.");
}


void QgsWmsProvider::parseOperationType(QDomElement const & e, QgsWmsOperationType& operationType)
{
  QgsDebugMsg("entering.");

  QDomNode n1 = e.firstChild();
  while( !n1.isNull() ) {
      QDomElement e1 = n1.toElement(); // try to convert the node to an element.
      if( !e1.isNull() ) {
          if      (e1.tagName() == "Format")
          {
            QgsDebugMsg("      Format."); 
            operationType.format += e1.text();
          }
          else if (e1.tagName() == "DCPType")
          {
            QgsDebugMsg("      DCPType.");
            QgsWmsDcpTypeProperty dcp;
            parseDcpType(e1, dcp);
            operationType.dcpType.push_back(dcp);
          }
      }
      n1 = n1.nextSibling();
  }

  QgsDebugMsg("exiting.");
}


void QgsWmsProvider::parseRequest(QDomElement const & e, QgsWmsRequestProperty& requestProperty)
{
  QgsDebugMsg("entering.");

  QDomNode n1 = e.firstChild();
  while( !n1.isNull() ) {
      QDomElement e1 = n1.toElement(); // try to convert the node to an element.
      if( !e1.isNull() ) {
          if (e1.tagName() == "GetMap")
          {
            QgsDebugMsg("      GetMap."); 
            parseOperationType(e1, requestProperty.getMap);
          }
          else if (e1.tagName() == "GetFeatureInfo")
          {
            QgsDebugMsg("      GetFeatureInfo.");
            parseOperationType(e1, requestProperty.getFeatureInfo);
          }
      }
      n1 = n1.nextSibling();
  }

  QgsDebugMsg("exiting.");
}


void QgsWmsProvider::parseLegendUrl(QDomElement const & e, QgsWmsLegendUrlProperty& legendUrlProperty)
{
  QgsDebugMsg("entering.");

  legendUrlProperty.width  = e.attribute("width").toUInt();
  legendUrlProperty.height = e.attribute("height").toUInt();

  QDomNode n1 = e.firstChild();
  while( !n1.isNull() ) {
      QDomElement e1 = n1.toElement(); // try to convert the node to an element.
      if( !e1.isNull() ) {
          if      (e1.tagName() == "Format")
          {
            legendUrlProperty.format = e1.text();
          }
          else if (e1.tagName() == "OnlineResource")
          {
            parseOnlineResource(e1, legendUrlProperty.onlineResource);
          }
      }
      n1 = n1.nextSibling();
  }

  QgsDebugMsg("exiting.");
}


void QgsWmsProvider::parseStyle(QDomElement const & e, QgsWmsStyleProperty& styleProperty)
{
//  QgsDebugMsg("entering.");

  QDomNode n1 = e.firstChild();
  while( !n1.isNull() ) {
      QDomElement e1 = n1.toElement(); // try to convert the node to an element.
      if( !e1.isNull() ) {
          if (e1.tagName() == "Name")
          {
            styleProperty.name = e1.text();
          }
          else if (e1.tagName() == "Title")
          {
            styleProperty.title = e1.text();
          }
          else if (e1.tagName() == "Abstract")
          {
            styleProperty.abstract = e1.text();
          }
          else if (e1.tagName() == "LegendURL")
          {
            // TODO
          }
          else if (e1.tagName() == "StyleSheetURL")
          {
            // TODO
          }
          else if (e1.tagName() == "StyleURL")
          {
            // TODO
          }
      }
      n1 = n1.nextSibling();
  }

//  QgsDebugMsg("exiting.");
}


void QgsWmsProvider::parseLayer(QDomElement const & e, QgsWmsLayerProperty& layerProperty,
                                QgsWmsLayerProperty *parentProperty)
{
//  QgsDebugMsg("entering.");

// TODO: Delete this stanza completely, depending on success of "Inherit things into the sublayer" below.
//  // enforce WMS non-inheritance rules
//  layerProperty.name =        QString::null;
//  layerProperty.title =       QString::null;
//  layerProperty.abstract =    QString::null;
//  layerProperty.keywordList.clear();

  // assume true until we find a child layer
  bool atleaf = TRUE;

  layerProperty.queryable   = e.attribute("queryable").toUInt();
  layerProperty.cascaded    = e.attribute("cascaded").toUInt();
  layerProperty.opaque      = e.attribute("opaque").toUInt();
  layerProperty.noSubsets   = e.attribute("noSubsets").toUInt();
  layerProperty.fixedWidth  = e.attribute("fixedWidth").toUInt();
  layerProperty.fixedHeight = e.attribute("fixedHeight").toUInt();

  QDomNode n1 = e.firstChild();
  while( !n1.isNull() ) {
      QDomElement e1 = n1.toElement(); // try to convert the node to an element.
      if( !e1.isNull() ) {
          //QgsDebugMsg("    "  + e1.tagName() ); // the node really is an element.

          if      (e1.tagName() == "Layer")
          {
//            QgsDebugMsg("      Nested layer."); 

            QgsWmsLayerProperty subLayerProperty;

            // Inherit things into the sublayer
            //   Ref: 7.2.4.8 Inheritance of layer properties
            subLayerProperty.style                    = layerProperty.style;
            subLayerProperty.crs                      = layerProperty.crs;
            subLayerProperty.boundingBox              = layerProperty.boundingBox;
            subLayerProperty.ex_GeographicBoundingBox = layerProperty.ex_GeographicBoundingBox;
            // TODO

            parseLayer(e1, subLayerProperty, &layerProperty );

            layerProperty.layer.push_back(subLayerProperty);

            atleaf = FALSE;
          }
          else if (e1.tagName() == "Name")
          {
            layerProperty.name = e1.text();
          }
          else if (e1.tagName() == "Title")
          {
            layerProperty.title = e1.text();
          }
          else if (e1.tagName() == "Abstract")
          {
            layerProperty.abstract = e1.text();
          }
          else if (e1.tagName() == "KeywordList")
          {
            parseKeywordList(e1, layerProperty.keywordList);
          }
          else if (e1.tagName() == "CRS")
          {
            layerProperty.crs.push_back(e1.text());
          }
          else if (e1.tagName() == "SRS")        // legacy from earlier versions of WMS
          {
            // SRS can contain several definitions separated by whitespace