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qgswmsprovider.cpp
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qgswmsprovider.cpp
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/***************************************************************************
qgswmsprovider.cpp - QGIS Data provider for
OGC Web Map Service layers
-------------------
begin : 17 Mar, 2005
copyright : (C) 2005 by Brendan Morley
email : morb at ozemail dot com dot au
***************************************************************************/
/***************************************************************************
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
* the Free Software Foundation; either version 2 of the License, or *
* (at your option) any later version. *
* *
***************************************************************************/
/* $Id$ */
#include "qgslogger.h"
#include "qgswmsprovider.h"
#include <math.h>
#include "qgscoordinatetransform.h"
#include "qgsrectangle.h"
#include "qgscoordinatereferencesystem.h"
#include "qgshttptransaction.h"
#include <QUrl>
#include <QImage>
#include <QSet>
#include <QSettings>
#ifdef _MSC_VER
#include <float.h>
#define isfinite(x) _finite(x)
#endif
#ifdef QGISDEBUG
#include <QFile>
#endif
static QString WMS_KEY = "wms";
static QString WMS_DESCRIPTION = "OGC Web Map Service version 1.3 data provider";
static QString DEFAULT_LATLON_CRS = "CRS:84";
QgsWmsProvider::QgsWmsProvider( QString const & uri )
: QgsRasterDataProvider( uri ),
httpuri( uri ),
httpcapabilitiesresponse( 0 ),
imageCrs( DEFAULT_LATLON_CRS ),
cachedImage( 0 ),
cachedViewExtent( 0 ),
cachedPixelWidth( 0 ),
cachedPixelHeight( 0 ),
mCoordinateTransform( 0 ),
extentDirty( TRUE ),
mGetFeatureInfoUrlBase( 0 ),
mLayerCount( -1 )
{
QgsDebugMsg( "QgsWmsProvider: constructing with uri '" + uri + "'." );
// assume this is a valid layer until we determine otherwise
valid = true;
// URL can be in 3 forms:
// 1) http://xxx.xxx.xx/yyy/yyy
// 2) http://xxx.xxx.xx/yyy/yyy?
// 3) http://xxx.xxx.xx/yyy/yyy?zzz=www
baseUrl = prepareUri( httpuri );
QgsDebugMsg( "baseUrl = " + baseUrl );
// getServerCapabilities();
//httpuri = "http://www.ga.gov.au/bin/getmap.pl?dataset=national&Service=WMS&Version=1.1.0&Request=GetMap&"
// "BBox=130,-40,160,-10&CRS=EPSG:4326&Width=400&Height=400&Layers=railways&Format=image/png";
//httpuri = "http://www.ga.gov.au/bin/getmap.pl?dataset=national&";
/*
// 302-redirects to:
uri = "http://www.ga.gov.au/bin/mapserv40?"
"map=/public/http/www/docs/map/national/national.map&"
"map_logo_status=off&map_coast_status=off&Service=WMS&Version=1.1.0&"
"Request=GetMap&BBox=130,-40,160,-10&CRS=EPSG:4326&Width=800&"
"Height=800&Layers=railways&Format=image/png";
*/
// downloadMapURI(uri);
QgsDebugMsg( "QgsWmsProvider: exiting constructor." );
}
QString QgsWmsProvider::prepareUri( QString uri )
{
if ( !( uri.contains( "?" ) ) )
{
uri.append( "?" );
}
else if (
( uri.right( 1 ) != "?" ) &&
( uri.right( 1 ) != "&" )
)
{
uri.append( "&" );
}
return uri;
}
QgsWmsProvider::~QgsWmsProvider()
{
QgsDebugMsg( "QgsWmsProvider: deconstructing." );
// Dispose of any cached image as created by draw()
if ( cachedImage )
{
delete cachedImage;
}
if ( mCoordinateTransform )
{
delete mCoordinateTransform;
}
}
bool QgsWmsProvider::supportedLayers( QVector<QgsWmsLayerProperty> &layers )
{
QgsDebugMsg( "Entering." );
// Allow the provider to collect the capabilities first.
if ( !retrieveServerCapabilities() )
{
return FALSE;
}
layers = layersSupported;
QgsDebugMsg( "Exiting." );
return TRUE;
}
QSet<QString> QgsWmsProvider::supportedCrsForLayers( QStringList const & layers )
{
QSet<QString> crsCandidates;
QStringList::const_iterator i;
for ( i = layers.constBegin(); i != layers.constEnd(); ++i )
{
QVector<QString> crsVector = crsForLayer[*i];
QSet<QString> crsSet;
// convert std::vector to std::set for set comparisons
for ( int j = 0; j < crsVector.size(); j++ )
{
crsSet.insert( crsVector[j] );
}
// first time through?
if ( i == layers.constBegin() )
{
// do initial population of set
crsCandidates = crsSet;
}
else
{
// do lowest common denominator (set intersection)
crsCandidates.intersect( crsSet );
}
}
return crsCandidates;
}
size_t QgsWmsProvider::layerCount() const
{
return 1; // XXX properly return actual number of layers
} // QgsWmsProvider::layerCount()
void QgsWmsProvider::addLayers( QStringList const &layers,
QStringList const &styles )
{
QgsDebugMsg( "Entering with layer list of " + layers.join( ", " )
+ " and style list of " + styles.join( ", " ) );
// TODO: Make activeSubLayers a std::map in order to avoid duplicates
activeSubLayers += layers;
activeSubStyles += styles;
// Set the visibility of these new layers on by default
for ( QStringList::const_iterator it = layers.begin();
it != layers.end();
++it )
{
activeSubLayerVisibility[*it] = TRUE;
QgsDebugMsg( "set visibility of layer '" + ( *it ) + "' to TRUE." );
}
// now that the layers have changed, the extent will as well.
extentDirty = TRUE;
QgsDebugMsg( "Exiting." );
}
void QgsWmsProvider::setLayerOrder( QStringList const &layers )
{
QgsDebugMsg( "Entering." );
activeSubLayers = layers;
QgsDebugMsg( "Exiting." );
}
void QgsWmsProvider::setSubLayerVisibility( QString const & name, bool vis )
{
activeSubLayerVisibility[name] = vis;
}
QString QgsWmsProvider::imageEncoding() const
{
return imageMimeType;
}
void QgsWmsProvider::setImageEncoding( QString const & mimeType )
{
QgsDebugMsg( "Setting image encoding to " + mimeType + "." );
imageMimeType = mimeType;
}
void QgsWmsProvider::setImageCrs( QString const & crs )
{
QgsDebugMsg( "Setting image CRS to " + crs + "." );
if (
( crs != imageCrs )
&&
( ! crs.isEmpty() )
)
{
// delete old coordinate transform as it is no longer valid
if ( mCoordinateTransform )
{
delete mCoordinateTransform;
}
extentDirty = TRUE;
imageCrs = crs;
}
}
QImage* QgsWmsProvider::draw( QgsRectangle const & viewExtent, int pixelWidth, int pixelHeight )
{
QgsDebugMsg( "Entering." );
QgsDebugMsg( "pixelWidth = " + QString::number( pixelWidth ) );
QgsDebugMsg( "pixelHeight = " + QString::number( pixelHeight ) );
QgsDebugMsg( "viewExtent: " + viewExtent.toString() );
// Can we reuse the previously cached image?
if (
( cachedImage ) &&
( cachedViewExtent == viewExtent ) &&
( cachedPixelWidth == pixelWidth ) &&
( cachedPixelHeight == pixelHeight )
)
{
return cachedImage;
}
// Bounding box in WMS format
QString bbox;
//according to the WMS spec for 1.3, the order of x - and y - coordinates is inverted for geographical CRS
bool changeXY = false;
if ( mCapabilities.version == "1.3.0" || mCapabilities.version == "1.3" )
{
//create CRS from string
bool conversionOk;
int epsgNr = imageCrs.section( ":", 1, 1 ).toInt( &conversionOk );
if ( conversionOk )
{
QgsCoordinateReferenceSystem theSrs;
theSrs.createFromEpsg( epsgNr );
if ( theSrs.geographicFlag() )
{
changeXY = true;
}
}
}
// Warning: does not work with scientific notation
if ( changeXY )
{
bbox = QString( "%1,%2,%3,%4" ).
arg( viewExtent.yMinimum(), 0, 'f' ).
arg( viewExtent.xMinimum(), 0, 'f' ).
arg( viewExtent.yMaximum(), 0, 'f' ).
arg( viewExtent.xMaximum(), 0, 'f' );
}
else
{
bbox = QString( "%1,%2,%3,%4" ).
arg( viewExtent.xMinimum(), 0, 'f' ).
arg( viewExtent.yMinimum(), 0, 'f' ).
arg( viewExtent.xMaximum(), 0, 'f' ).
arg( viewExtent.yMaximum(), 0, 'f' );
}
// Width in WMS format
QString width;
width = width.setNum( pixelWidth );
// Height in WMS format
QString height;
height = height.setNum( pixelHeight );
// Calculate active layers that are also visible.
QgsDebugMsg( "Active layer list of " + activeSubLayers.join( ", " )
+ " and style list of " + activeSubStyles.join( ", " ) );
QStringList visibleLayers = QStringList();
QStringList visibleStyles = QStringList();
QStringList::Iterator it2 = activeSubStyles.begin();
for ( QStringList::Iterator it = activeSubLayers.begin();
it != activeSubLayers.end();
++it )
{
if ( activeSubLayerVisibility.find( *it ).value() )
{
visibleLayers += *it;
visibleStyles += *it2;
}
++it2;
}
QgsDebugMsg( "Visible layer list of " + visibleLayers.join( ", " )
+ " and style list of " + visibleStyles.join( ", " ) );
QString layers = QUrl::toPercentEncoding( visibleLayers.join( "," ) );
QString styles = QUrl::toPercentEncoding( visibleStyles.join( "," ) );
// compose the URL query string for the WMS server.
QString crsKey = "SRS"; //SRS in 1.1.1 and CRS in 1.3.0
if ( mCapabilities.version == "1.3.0" || mCapabilities.version == "1.3" )
{
crsKey = "CRS";
}
QString url;
QVector<QgsWmsDcpTypeProperty> dcpType = mCapabilities.capability.request.getMap.dcpType;
if ( dcpType.size() < 1 )
{
url = baseUrl;
}
else
{
url = prepareUri( dcpType.front().http.get.onlineResource.xlinkHref );
}
url += "SERVICE=WMS";
url += "&";
url += "VERSION=" + mCapabilities.version;
url += "&";
url += "REQUEST=GetMap";
url += "&";
url += "BBOX=" + bbox;
url += "&";
url += crsKey + "=" + imageCrs;
url += "&";
url += "WIDTH=" + width;
url += "&";
url += "HEIGHT=" + height;
url += "&";
url += "LAYERS=" + layers;
url += "&";
url += "STYLES=" + styles;
url += "&";
url += "FORMAT=" + imageMimeType;
//MH: jpeg does not support transparency and some servers complain if jpg and transparent=true
if ( !imageMimeType.contains( "jpeg", Qt::CaseInsensitive ) && !imageMimeType.contains( "jpg", Qt::CaseInsensitive ) )
{
url += "&";
url += "TRANSPARENT=TRUE";
}
dcpType = mCapabilities.capability.request.getFeatureInfo.dcpType;
if ( dcpType.size() < 1 )
{
mGetFeatureInfoUrlBase = baseUrl;
}
else
{
mGetFeatureInfoUrlBase = prepareUri( dcpType.front().http.get.onlineResource.xlinkHref );
}
// cache some details for if the user wants to do an identifyAsHtml() later
mGetFeatureInfoUrlBase += "SERVICE=WMS";
mGetFeatureInfoUrlBase += "&";
mGetFeatureInfoUrlBase += "VERSION=" + mCapabilities.version;
mGetFeatureInfoUrlBase += "&";
mGetFeatureInfoUrlBase += "REQUEST=GetFeatureInfo";
mGetFeatureInfoUrlBase += "&";
mGetFeatureInfoUrlBase += "BBOX=" + bbox;
mGetFeatureInfoUrlBase += "&";
mGetFeatureInfoUrlBase += crsKey + "=" + imageCrs;
mGetFeatureInfoUrlBase += "&";
mGetFeatureInfoUrlBase += "WIDTH=" + width;
mGetFeatureInfoUrlBase += "&";
mGetFeatureInfoUrlBase += "HEIGHT=" + height;
mGetFeatureInfoUrlBase += "&";
mGetFeatureInfoUrlBase += "LAYERS=" + layers;
mGetFeatureInfoUrlBase += "&";
mGetFeatureInfoUrlBase += "STYLES=" + styles;
mGetFeatureInfoUrlBase += "&";
mGetFeatureInfoUrlBase += "FORMAT=" + imageMimeType;
if ( !imageMimeType.contains( "jpeg", Qt::CaseInsensitive ) && !imageMimeType.contains( "jpg", Qt::CaseInsensitive ) )
{
mGetFeatureInfoUrlBase += "&";
mGetFeatureInfoUrlBase += "TRANSPARENT=TRUE";
}
QByteArray imagesource;
imagesource = retrieveUrl( url );
if ( imagesource.isEmpty() )
{
return 0;
}
#if 0
QgsHttpTransaction http( url, httpproxyhost, httpproxyport );
// Do a passthrough for the status bar text
connect(
&http, SIGNAL( statusChanged( QString ) ),
this, SLOT( showStatusMessage( QString ) )
);
bool httpOk;
httpOk = http.getSynchronously( imagesource );
if ( !httpOk )
{
// We had an HTTP exception
mErrorCaption = tr( "HTTP Exception" );
mError = http.errorString();
mError += "\n" + tr( "Tried URL: " ) + url;
return 0;
}
if ( http.responseContentType() == "application/vnd.ogc.se_xml" )
{
// We had a Service Exception from the WMS
QgsDebugMsg( "got Service Exception as:\n" + QString( imagesource ) );
mErrorCaption = tr( "WMS Service Exception" );
// set mError with the following:
parseServiceExceptionReportDom( imagesource );
mError += "\n" + tr( "Tried URL: " ) + url;
QgsDebugMsg( "composed error message '" + mError + "'." );
return 0;
}
#endif
QgsDebugMsg( "Response received." );
#ifdef QGISDEBUG
//QFile file( "/tmp/qgis-wmsprovider-draw-raw.png" );
//if ( file.open( QIODevice::WriteOnly ) )
//{
// file.writeBlock(imagesource);
// file.close();
//}
#endif
// Load into the final QImage.
//bool success = i.loadFromData(imagesource);
if ( cachedImage )
{
delete cachedImage;
}
//Create a local image from source then convert it to RGBA, so we can set the transparency later
QImage myLocalImage = QImage::fromData( imagesource );
cachedImage = new QImage( myLocalImage.convertToFormat( QImage::Format_ARGB32 ) );
// Remember settings for useful caching next time.
cachedViewExtent = viewExtent;
cachedPixelWidth = pixelWidth;
cachedPixelHeight = pixelHeight;
#ifdef QGISDEBUG
// Get what we can support
// Commented out for now, causes segfaults.
// supportedFormats();
#endif
QgsDebugMsg( "Exiting." );
// TODO: bit depth conversion to the client's expectation
// return *(i.convertDepth(32));
return cachedImage;
}
#if 0
void QgsWmsProvider::getServerCapabilities()
{
QgsDebugMsg( "entering." );
retrieveServerCapabilities();
// TODO: Return generic server capabilities here
QgsDebugMsg( "exiting." );
}
#endif
bool QgsWmsProvider::retrieveServerCapabilities( bool forceRefresh )
{
QgsDebugMsg( "entering." );
if ( httpcapabilitiesresponse.isNull() ||
forceRefresh )
{
QString url = baseUrl + "SERVICE=WMS&REQUEST=GetCapabilities";
httpcapabilitiesresponse = retrieveUrl( url );
if ( httpcapabilitiesresponse.isEmpty() )
{
return FALSE;
}
#if 0
QgsHttpTransaction http( url, httpproxyhost, httpproxyport );
// Do a passthrough for the status bar text
connect(
&http, SIGNAL( statusChanged( QString ) ),
this, SLOT( showStatusMessage( QString ) )
);
bool httpOk;
httpOk = http.getSynchronously( httpcapabilitiesresponse );
if ( !httpOk )
{
// We had an HTTP exception
mErrorCaption = tr( "HTTP Exception" );
mError = http.errorString();
mError += "\n" + tr( "Tried URL: " ) + url;
QgsDebugMsg( "!httpOK: " + mError );
return FALSE;
}
#endif
QgsDebugMsg( "Converting to Dom." );
bool domOK;
domOK = parseCapabilitiesDom( httpcapabilitiesresponse, mCapabilities );
if ( !domOK )
{
// We had an Dom exception -
// mErrorCaption and mError are pre-filled by parseCapabilitiesDom
mError += tr( "\nTried URL: %1" ).arg( url );
QgsDebugMsg( "!domOK: " + mError );
return FALSE;
}
}
QgsDebugMsg( "exiting." );
return TRUE;
}
QByteArray QgsWmsProvider::retrieveUrl( QString url )
{
QgsDebugMsg( "WMS request Url: " + url );
QgsHttpTransaction http( url );
// Do a passthrough for the status bar text
connect(
&http, SIGNAL( statusChanged( QString ) ),
this, SLOT( showStatusMessage( QString ) )
);
QByteArray httpResponse;
bool httpOk;
httpOk = http.getSynchronously( httpResponse );
if ( !httpOk )
{
// We had an HTTP exception
mErrorCaption = tr( "HTTP Exception" );
mError = http.errorString();
mError += tr( "\nTried URL: %1" ).arg( url );
return QByteArray( "" );
}
if ( http.responseContentType() == "application/vnd.ogc.se_xml" )
{
// We had a Service Exception from the WMS
QgsDebugMsg( "got Service Exception as:\n" + httpResponse );
mErrorCaption = tr( "WMS Service Exception" );
// set mError with the following:
parseServiceExceptionReportDom( httpResponse );
mError += tr( "\nTried URL: %1" ).arg( url );
QgsDebugMsg( "composed error message '" + mError + "'." );
return QByteArray( "" );
}
return httpResponse;
}
bool QgsWmsProvider::parseCapabilitiesDom( QByteArray const & xml, QgsWmsCapabilitiesProperty& capabilitiesProperty )
{
QgsDebugMsg( "entering." );
#ifdef QGISDEBUG
//test the content of the QByteArray.
// There is a bug in Qt4.1.2, due for fixing in 4.2.0, where
// QString(QByteArray) uses strlen to find the length of the
// QByteArray. However, there are no guarantees that the QByteArray
// has a terminating \0, and hence this can cause a crash, so we supply
// the qbytearray to qstring in a way that ensures that there is a
// terminating \0, and just to be safe, we also give it the actual
// size.
// Also, the Qt qWarning() function has a limit of 8192 bytes per
// message, which can easily be exceeded by wms capability
// documents, so we use the qgs logger stuff instead which doesn't
// have that limitation.
QString responsestring( QString::fromAscii( xml.constData(), xml.size() ) );
QgsLogger::debug( "QgsWmsProvider::parseCapabilitiesDom, received the following data: " + responsestring );
//QFile file( "/tmp/qgis-wmsprovider-capabilities.xml" );
//if ( file.open( QIODevice::WriteOnly ) )
//{
// file.writeBlock(xml);
// file.close();
//}
#endif
// Convert completed document into a Dom
QString errorMsg;
int errorLine;
int errorColumn;
bool contentSuccess = capabilitiesDom.setContent( xml, false, &errorMsg, &errorLine, &errorColumn );
if ( !contentSuccess )
{
mErrorCaption = tr( "Dom Exception" );
mError = tr( "Could not get WMS capabilities: %1 at line %2 column %3\n" )
.arg( errorMsg ).arg( errorLine ).arg( errorColumn )
+ tr( "This is probably due to an incorrect WMS Server URL." );
QgsLogger::debug( "Dom Exception: " + mError );
return FALSE;
}
QDomElement docElem = capabilitiesDom.documentElement();
// Assert that the DTD is what we expected (i.e. a WMS Capabilities document)
QgsDebugMsg( "testing tagName " + docElem.tagName() );
if ( !
(
( docElem.tagName() == "WMS_Capabilities" ) // (1.3 vintage)
||
( docElem.tagName() == "WMT_MS_Capabilities" ) // (1.1.1 vintage)
)
)
{
mErrorCaption = tr( "Dom Exception" );
mError = tr( "Could not get WMS capabilities in the "
"expected format (DTD): no %1 or %2 found\n" )
.arg( "WMS_Capabilities" ).arg( "WMT_MS_Capabilities" )
+ tr( "This is probably due to an incorrect WMS Server URL." );
QgsLogger::debug( "Dom Exception: " + mError );
return FALSE;
}
capabilitiesProperty.version = docElem.attribute( "version" );
// Start walking through XML.
QDomNode n = docElem.firstChild();
while ( !n.isNull() )
{
QDomElement e = n.toElement(); // try to convert the node to an element.
if ( !e.isNull() )
{
//QgsDebugMsg(e.tagName() ); // the node really is an element.
if ( e.tagName() == "Service" )
{
QgsDebugMsg( " Service." );
parseService( e, capabilitiesProperty.service );
}
else if ( e.tagName() == "Capability" )
{
QgsDebugMsg( " Capability." );
parseCapability( e, capabilitiesProperty.capability );
}
}
n = n.nextSibling();
}
QgsDebugMsg( "exiting." );
return TRUE;
}
void QgsWmsProvider::parseService( QDomElement const & e, QgsWmsServiceProperty& serviceProperty )
{
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() == "Title" )
{
serviceProperty.title = e1.text();
}
else if ( e1.tagName() == "Abstract" )
{
serviceProperty.abstract = e1.text();
}
else if ( e1.tagName() == "KeywordList" )
{
parseKeywordList( e1, serviceProperty.keywordList );
}
else if ( e1.tagName() == "OnlineResource" )
{
parseOnlineResource( e1, serviceProperty.onlineResource );
}
else if ( e1.tagName() == "ContactInformation" )
{
parseContactInformation( e1, serviceProperty.contactInformation );
}
else if ( e1.tagName() == "Fees" )
{
serviceProperty.fees = e1.text();
}
else if ( e1.tagName() == "AccessConstraints" )
{
serviceProperty.accessConstraints = e1.text();
}
else if ( e1.tagName() == "LayerLimit" )
{
serviceProperty.layerLimit = e1.text().toUInt();
}
else if ( e1.tagName() == "MaxWidth" )
{
serviceProperty.maxWidth = e1.text().toUInt();
}
else if ( e1.tagName() == "MaxHeight" )
{
serviceProperty.maxHeight = e1.text().toUInt();
}
}
n1 = n1.nextSibling();
}
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." );
}