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Add QgsSLDConfigParser and create calss QgsConfigParserUtils for parts which are common between project parser and sld parser
1 parent e490991 commit b4f21e2

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+1855
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lines changed

‎src/mapserver/CMakeLists.txt

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@@ -44,6 +44,8 @@ SET ( qgis_mapserv_SRCS
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qgswfsprojectparser.cpp
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qgswmsprojectparser.cpp
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qgsserverprojectparser.cpp
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qgssldconfigparser.cpp
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qgsconfigparserutils.cpp
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)
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# SET (qgis_mapserv_UIS

‎src/mapserver/qgsconfigparserutils.cpp

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/***************************************************************************
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qgsconfigparserutils.cpp
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------------------------
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begin : March 28, 2014
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copyright : (C) 2014 by Marco Hugentobler
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email : marco dot hugentobler at sourcepole dot ch
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***************************************************************************/
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/***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************/
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#include "qgsconfigparserutils.h"
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#include "qgsapplication.h"
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#include "qgscoordinatereferencesystem.h"
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#include "qgscoordinatetransform.h"
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#include "qgscrscache.h"
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#include "qgsmaplayer.h"
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#include "qgsrectangle.h"
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#include <QDomDocument>
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#include <QDomElement>
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#include <QString>
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#include <sqlite3.h>
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class QgsCoordinateReferenceSystem;
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class QgsRectangle;
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class QDomDocument;
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class QDomElement;
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class QString;
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class QStringList;
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void QgsConfigParserUtils::appendCRSElementsToLayer( QDomElement& layerElement, QDomDocument& doc,
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const QStringList &crsList, const QStringList& constrainedCrsList )
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{
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if ( layerElement.isNull() )
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{
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return;
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}
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//insert the CRS elements after the title element to be in accordance with the WMS 1.3 specification
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QDomElement titleElement = layerElement.firstChildElement( "Title" );
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QDomElement abstractElement = layerElement.firstChildElement( "Abstract" );
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QDomElement CRSPrecedingElement = abstractElement.isNull() ? titleElement : abstractElement; //last element before the CRS elements
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//In case the number of advertised CRS is constrained
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if ( constrainedCrsList.size() > 0 )
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{
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for ( int i = constrainedCrsList.size() - 1; i >= 0; --i )
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{
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appendCRSElementToLayer( layerElement, CRSPrecedingElement, constrainedCrsList.at( i ), doc );
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}
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}
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else //no crs constraint
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{
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foreach ( QString crs, crsList )
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{
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appendCRSElementToLayer( layerElement, CRSPrecedingElement, crs, doc );
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}
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}
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}
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void QgsConfigParserUtils::appendCRSElementToLayer( QDomElement& layerElement, const QDomElement& precedingElement,
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const QString& crsText, QDomDocument& doc )
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{
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QString version = doc.documentElement().attribute( "version" );
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QDomElement crsElement = doc.createElement( version == "1.1.1" ? "SRS" : "CRS" );
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QDomText crsTextNode = doc.createTextNode( crsText );
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crsElement.appendChild( crsTextNode );
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layerElement.insertAfter( crsElement, precedingElement );
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}
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void QgsConfigParserUtils::appendLayerBoundingBoxes( QDomElement& layerElem, QDomDocument& doc, const QgsRectangle& layerExtent,
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const QgsCoordinateReferenceSystem& layerCRS )
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{
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if ( layerElem.isNull() )
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{
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return;
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}
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const QgsCoordinateReferenceSystem& wgs84 = QgsCRSCache::instance()->crsByAuthId( GEO_EPSG_CRS_AUTHID );
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QString version = doc.documentElement().attribute( "version" );
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//Ex_GeographicBoundingBox
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QDomElement ExGeoBBoxElement;
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//transform the layers native CRS into WGS84
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QgsCoordinateTransform exGeoTransform( layerCRS, wgs84 );
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QgsRectangle wgs84BoundingRect = exGeoTransform.transformBoundingBox( layerExtent );
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if ( version == "1.1.1" ) // WMS Version 1.1.1
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{
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ExGeoBBoxElement = doc.createElement( "LatLonBoundingBox" );
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ExGeoBBoxElement.setAttribute( "minx", QString::number( wgs84BoundingRect.xMinimum() ) );
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ExGeoBBoxElement.setAttribute( "maxx", QString::number( wgs84BoundingRect.xMaximum() ) );
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ExGeoBBoxElement.setAttribute( "miny", QString::number( wgs84BoundingRect.yMinimum() ) );
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ExGeoBBoxElement.setAttribute( "maxy", QString::number( wgs84BoundingRect.yMaximum() ) );
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}
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else // WMS Version 1.3.0
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{
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ExGeoBBoxElement = doc.createElement( "EX_GeographicBoundingBox" );
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QDomElement wBoundLongitudeElement = doc.createElement( "westBoundLongitude" );
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QDomText wBoundLongitudeText = doc.createTextNode( QString::number( wgs84BoundingRect.xMinimum() ) );
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wBoundLongitudeElement.appendChild( wBoundLongitudeText );
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ExGeoBBoxElement.appendChild( wBoundLongitudeElement );
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QDomElement eBoundLongitudeElement = doc.createElement( "eastBoundLongitude" );
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QDomText eBoundLongitudeText = doc.createTextNode( QString::number( wgs84BoundingRect.xMaximum() ) );
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eBoundLongitudeElement.appendChild( eBoundLongitudeText );
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ExGeoBBoxElement.appendChild( eBoundLongitudeElement );
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QDomElement sBoundLatitudeElement = doc.createElement( "southBoundLatitude" );
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QDomText sBoundLatitudeText = doc.createTextNode( QString::number( wgs84BoundingRect.yMinimum() ) );
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sBoundLatitudeElement.appendChild( sBoundLatitudeText );
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ExGeoBBoxElement.appendChild( sBoundLatitudeElement );
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QDomElement nBoundLatitudeElement = doc.createElement( "northBoundLatitude" );
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QDomText nBoundLatitudeText = doc.createTextNode( QString::number( wgs84BoundingRect.yMaximum() ) );
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nBoundLatitudeElement.appendChild( nBoundLatitudeText );
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ExGeoBBoxElement.appendChild( nBoundLatitudeElement );
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}
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//BoundingBox element
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QDomElement bBoxElement = doc.createElement( "BoundingBox" );
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if ( layerCRS.isValid() )
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{
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bBoxElement.setAttribute( version == "1.1.1" ? "SRS" : "CRS", layerCRS.authid() );
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}
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QgsRectangle r( layerExtent );
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if ( version != "1.1.1" && layerCRS.axisInverted() )
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{
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r.invert();
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}
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bBoxElement.setAttribute( "minx", QString::number( r.xMinimum() ) );
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bBoxElement.setAttribute( "miny", QString::number( r.yMinimum() ) );
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bBoxElement.setAttribute( "maxx", QString::number( r.xMaximum() ) );
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bBoxElement.setAttribute( "maxy", QString::number( r.yMaximum() ) );
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QDomElement lastCRSElem = layerElem.lastChildElement( version == "1.1.1" ? "SRS" : "CRS" );
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if ( !lastCRSElem.isNull() )
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{
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layerElem.insertAfter( ExGeoBBoxElement, lastCRSElem );
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layerElem.insertAfter( bBoxElement, ExGeoBBoxElement );
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}
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else
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{
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layerElem.appendChild( ExGeoBBoxElement );
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layerElem.appendChild( bBoxElement );
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}
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}
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QStringList QgsConfigParserUtils::createCRSListForLayer( QgsMapLayer* theMapLayer )
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{
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QStringList crsNumbers;
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QString myDatabaseFileName = QgsApplication::srsDbFilePath();
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sqlite3 *myDatabase;
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const char *myTail;
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sqlite3_stmt *myPreparedStatement;
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int myResult;
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//check the db is available
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myResult = sqlite3_open( myDatabaseFileName.toLocal8Bit().data(), &myDatabase );
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if ( myResult && theMapLayer )
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{
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//if the database cannot be opened, add at least the epsg number of the source coordinate system
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crsNumbers.push_back( theMapLayer->crs().authid() );
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return crsNumbers;
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};
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QString mySql = "select upper(auth_name||':'||auth_id) from tbl_srs";
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myResult = sqlite3_prepare( myDatabase, mySql.toUtf8(), mySql.length(), &myPreparedStatement, &myTail );
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if ( myResult == SQLITE_OK )
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{
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while ( sqlite3_step( myPreparedStatement ) == SQLITE_ROW )
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{
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crsNumbers.push_back( QString::fromUtf8(( char * )sqlite3_column_text( myPreparedStatement, 0 ) ) );
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}
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}
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sqlite3_finalize( myPreparedStatement );
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sqlite3_close( myDatabase );
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return crsNumbers;
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}

‎src/mapserver/qgsconfigparserutils.h

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/***************************************************************************
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qgsconfigparserutils.h
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------------------------
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begin : March 28, 2014
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copyright : (C) 2014 by Marco Hugentobler
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email : marco dot hugentobler at sourcepole dot ch
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***************************************************************************/
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/***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************/
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#ifndef QGSCONFIGPARSERUTILS_H
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#define QGSCONFIGPARSERUTILS_H
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#include <QStringList>
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class QgsCoordinateReferenceSystem;
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class QgsMapLayer;
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class QgsRectangle;
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class QDomDocument;
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class QDomElement;
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class QString;
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class QgsConfigParserUtils
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{
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public:
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static void appendCRSElementsToLayer( QDomElement& layerElement, QDomDocument& doc, const QStringList &crsList,
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const QStringList& constrainedCrsList );
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static void appendCRSElementToLayer( QDomElement& layerElement, const QDomElement& precedingElement,
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const QString& crsText, QDomDocument& doc );
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static void appendLayerBoundingBoxes( QDomElement& layerElem, QDomDocument& doc, const QgsRectangle& layerExtent,
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const QgsCoordinateReferenceSystem& layerCRS );
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/**Returns a list of supported EPSG coordinate system numbers from a layer*/
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static QStringList createCRSListForLayer( QgsMapLayer* theMapLayer );
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};
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#endif // QGSCONFIGPARSERUTILS_H

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