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WMTS/WMS updates:
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- larger precision in BBOX (WMS/WMS-C)
- keep GetCapabilities request or document for GetCapabilities request (WMTS)
- parse multiple image format and infoFormat elements in GetCapabilities response
- support diffent nestings of TileMatrixSetLink/TileMatrixSet
- case insesitive parsing of ResourceURL attributes
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@jef-n
jef-n committed May 7, 2012
1 parent c819bf1 commit 8cde0d3
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Showing 3 changed files with 115 additions and 78 deletions.
138 changes: 84 additions & 54 deletions src/providers/wms/qgswmsprovider.cpp
View file
Expand Up @@ -234,6 +234,11 @@ void QgsWmsProvider::parseUri( QString uri )

QString QgsWmsProvider::prepareUri( QString uri ) const
{
if ( uri.contains( "SERVICE=WMTS" ) || uri.contains( "/WMTSCapabilities.xml" ) )
{
return uri;
}

if ( !uri.contains( "?" ) )
{
uri.append( "?" );
Expand Down Expand Up @@ -548,10 +553,10 @@ QImage *QgsWmsProvider::draw( QgsRectangle const &viewExtent, int pixelWidth, i

// Bounding box in WMS format (Warning: does not work with scientific notation)
QString bbox = QString( changeXY ? "%2,%1,%4,%3" : "%1,%2,%3,%4" )
.arg( viewExtent.xMinimum(), 0, 'f' )
.arg( viewExtent.yMinimum(), 0, 'f' )
.arg( viewExtent.xMaximum(), 0, 'f' )
.arg( viewExtent.yMaximum(), 0, 'f' );
.arg( viewExtent.xMinimum(), 0, 'f', 16 )
.arg( viewExtent.yMinimum(), 0, 'f', 16 )
.arg( viewExtent.xMaximum(), 0, 'f', 16 )
.arg( viewExtent.yMaximum(), 0, 'f', 16 );

mCachedImage = new QImage( pixelWidth, pixelHeight, QImage::Format_ARGB32 );
mCachedImage->fill( 0 );
Expand Down Expand Up @@ -702,7 +707,6 @@ QImage *QgsWmsProvider::draw( QgsRectangle const &viewExtent, int pixelWidth, i
double thMap = tm->tileHeight * tres;
QgsDebugMsg( QString( "tile map size: %1,%2" ).arg( twMap, 0, 'f' ).arg( thMap, 0, 'f' ) );


int minTileCol = 0;
int maxTileCol = tm->matrixWidth - 1;
int minTileRow = 0;
Expand Down Expand Up @@ -759,10 +763,10 @@ QImage *QgsWmsProvider::draw( QgsRectangle const &viewExtent, int pixelWidth, i
QString turl;
turl += url.toString();
turl += QString( changeXY ? "&BBOX=%2,%1,%4,%3" : "&BBOX=%1,%2,%3,%4" )
.arg( tm->topLeft.x() + col * twMap, 0, 'f' )
.arg( tm->topLeft.y() - ( row + 1 ) * thMap, 0, 'f' )
.arg( tm->topLeft.x() + ( col + 1 ) * twMap, 0, 'f' )
.arg( tm->topLeft.y() - row * thMap, 0, 'f' );
.arg( tm->topLeft.x() + col * twMap /* + twMap * 0.001 */, 0, 'f', 16 )
.arg( tm->topLeft.y() - ( row + 1 ) * thMap /* - thMap * 0.001 */, 0, 'f', 16 )
.arg( tm->topLeft.x() + ( col + 1 ) * twMap /* - twMap * 0.001 */, 0, 'f', 16 )
.arg( tm->topLeft.y() - row * thMap /* + thMap * 0.001 */, 0, 'f', 16 );

QNetworkRequest request( turl );
setAuthorization( request );
Expand Down Expand Up @@ -964,17 +968,19 @@ void QgsWmsProvider::tileReplyFinished()
QRectF r = reply->request().attribute( static_cast<QNetworkRequest::Attribute>( QNetworkRequest::User + 2 ) ).toRectF();

#if QT_VERSION >= 0x40500
QgsDebugMsg( QString( "tile reply %1 (%2) tile:%3 rect:%4,%5 %6x%7) fromcache:%8 error:%9" )
QgsDebugMsg( QString( "tile reply %1 (%2) tile:%3 rect:%4,%5 %6x%7) fromcache:%8 error:%9 url:%10" )
.arg( tileReqNo ).arg( mTileReqNo ).arg( tileNo )
.arg( r.left(), 0, 'f' ).arg( r.bottom(), 0, 'f' ).arg( r.width(), 0, 'f' ).arg( r.height(), 0, 'f' )
.arg( fromCache )
.arg( reply->errorString() )
.arg( reply->url().toString() )
);
#else
QgsDebugMsg( QString( "tile reply %1 (%2) tile:%3 rect:%4,%5 %6x%7) error:%8" )
QgsDebugMsg( QString( "tile reply %1 (%2) tile:%3 rect:%4,%5 %6x%7) error:%8 url:%9" )
.arg( tileReqNo ).arg( mTileReqNo ).arg( tileNo )
.arg( r.left(), 0, 'f' ).arg( r.bottom(), 0, 'f' ).arg( r.width(), 0, 'f' ).arg( r.height(), 0, 'f' )
.arg( reply->errorString() )
.arg( reply->url().toString() )
);
#endif

Expand Down Expand Up @@ -1202,7 +1208,12 @@ bool QgsWmsProvider::retrieveServerCapabilities( bool forceRefresh )

if ( mHttpCapabilitiesResponse.isNull() || forceRefresh )
{
QString url = mBaseUrl + "SERVICE=WMS&REQUEST=GetCapabilities";
QString url = mBaseUrl;
if ( !url.contains( "SERVICE=WMTS" ) &&
!url.contains( "/WMTSCapabilities.xml" ) )
{
url += "SERVICE=WMS&REQUEST=GetCapabilities";
}

mError = "";

Expand Down Expand Up @@ -2317,7 +2328,7 @@ void QgsWmsProvider::parseTileSetProfile( QDomElement const &e )
}
else if ( tagName == "Format" )
{
l.format = e1.text();
l.formats << e1.text();
}
else if ( tagName == "BoundingBox" )
{
Expand Down Expand Up @@ -2574,12 +2585,17 @@ void QgsWmsProvider::parseWMTSContents( QDomElement const &e )
l.defaultStyle = s.identifier;
}

l.format = e0.firstChildElement( "Format" ).text();
l.infoFormat = e0.firstChildElement( "InfoFormat" ).text();
for ( QDomElement e1 = e0.firstChildElement( "Format" ); !e1.isNull(); e1 = e1.nextSiblingElement( "Format" ) )
{
l.formats << e1.text();
}

for ( QDomElement e1 = e0.firstChildElement( "InfoFormat" ); !e1.isNull(); e1 = e1.nextSiblingElement( "InfoFormat" ) )
{
l.infoFormats << e1.text();
}

for ( QDomElement e1 = e0.firstChildElement( "Dimension" );
!e1.isNull();
e1 = e1.nextSiblingElement( "Dimension" ) )
for ( QDomElement e1 = e0.firstChildElement( "Dimension" ); !e1.isNull(); e1 = e1.nextSiblingElement( "Dimension" ) )
{
QgsWmtsDimension d;

Expand All @@ -2603,49 +2619,49 @@ void QgsWmsProvider::parseWMTSContents( QDomElement const &e )
l.dimensions.insert( d.identifier, d );
}

for ( QDomElement e1 = e0.firstChildElement( "TileMatrixSetLink" ).firstChildElement( "TileMatrixSet" );
!e1.isNull();
e1 = e1.nextSiblingElement( "TileMatrixSet" ) )
for ( QDomElement e1 = e0.firstChildElement( "TileMatrixSetLink" ); !e1.isNull(); e1 = e1.nextSiblingElement( "TileMatrixSetLink" ) )
{
QgsWmtsTileMatrixSetLink sl;

sl.tileMatrixSet = e1.text();
if ( !mTileMatrixSets.contains( sl.tileMatrixSet ) )
for ( QDomElement e2 = e1.firstChildElement( "TileMatrixSet" ); !e2.isNull(); e2 = e2.nextSiblingElement( "TileMatrixSet" ) )
{
QgsDebugMsg( QString( "tileMatrixSet %1 not found." ).arg( id ) );
continue;
}
QgsWmtsTileMatrixSetLink sl;

for ( QDomElement e2 = e1.firstChildElement( "TileMatrixSetLimits" ).firstChildElement( "TileMatrixLimits" );
!e2.isNull();
e2 = e2.nextSiblingElement( "TileMatrixLimits" ) )
{
QgsWmtsTileMatrixLimits limit;
sl.tileMatrixSet = e2.text();
if ( !mTileMatrixSets.contains( sl.tileMatrixSet ) )
{
QgsDebugMsg( QString( "tileMatrixSet %1 not found." ).arg( id ) );
continue;
}

QString id = e2.firstChildElement( "TileMatrix" ).text();
for ( QDomElement e3 = e2.firstChildElement( "TileMatrixSetLimits" ); !e3.isNull(); e3 = e3.nextSiblingElement( "TileMatrixSetLimits" ) )
{
for ( QDomElement e4 = e3.firstChildElement( "TileMatrixLimits" ); !e4.isNull(); e4 = e4.nextSiblingElement( "TileMatrixLimits" ) )
{
QgsWmtsTileMatrixLimits limit;

limit.minTileRow = e2.firstChildElement( "MinTileRow" ).text().toInt();
limit.maxTileRow = e2.firstChildElement( "MaxTileRow" ).text().toInt();
limit.minTileCol = e2.firstChildElement( "MinTileCol" ).text().toInt();
limit.maxTileCol = e2.firstChildElement( "MaxTileCol" ).text().toInt();
QString id = e4.firstChildElement( "TileMatrix" ).text();

sl.limits.insert( id, limit );
}
limit.minTileRow = e4.firstChildElement( "MinTileRow" ).text().toInt();
limit.maxTileRow = e4.firstChildElement( "MaxTileRow" ).text().toInt();
limit.minTileCol = e4.firstChildElement( "MinTileCol" ).text().toInt();
limit.maxTileCol = e4.firstChildElement( "MaxTileCol" ).text().toInt();

l.setLinks.insert( id, sl );
sl.limits.insert( id, limit );
}
}

l.setLinks.insert( sl.tileMatrixSet, sl );
}
}

for ( QDomElement e1 = e0.firstChildElement( "ResourceURL" );
!e1.isNull();
e1 = e1.nextSiblingElement( "ResourceURL" ) )
for ( QDomElement e1 = e0.firstChildElement( "ResourceURL" ); !e1.isNull(); e1 = e1.nextSiblingElement( "ResourceURL" ) )
{
QString format = e1.attribute( "format" );
QString resourceType = e1.attribute( "resourceType" );
QString tmpl = e1.attribute( "template" );
QString format = nodeAttribute( e1, "format" );
QString resourceType = nodeAttribute( e1, "resourceType" );
QString tmpl = nodeAttribute( e1, "template" );

if ( format.isEmpty() || resourceType.isEmpty() || tmpl.isEmpty() )
{
QgsDebugMsg( QString( "SKIPPING ResourcURL format=%1 resourceType=%2 template=%3" )
QgsDebugMsg( QString( "SKIPPING ResourceURL format=%1 resourceType=%2 template=%3" )
.arg( format )
.arg( resourceType )
.arg( tmpl ) ) ;
Expand Down Expand Up @@ -3614,10 +3630,10 @@ QStringList QgsWmsProvider::identifyAs( const QgsPoint& point, QString format )

// Compose request to WMS server
QString bbox = QString( changeXY ? "%2,%1,%4,%3" : "%1,%2,%3,%4" )
.arg( mCachedViewExtent.xMinimum(), 0, 'f' )
.arg( mCachedViewExtent.yMinimum(), 0, 'f' )
.arg( mCachedViewExtent.xMaximum(), 0, 'f' )
.arg( mCachedViewExtent.yMaximum(), 0, 'f' );
.arg( mCachedViewExtent.xMinimum(), 0, 'f', 16 )
.arg( mCachedViewExtent.yMinimum(), 0, 'f', 16 )
.arg( mCachedViewExtent.xMaximum(), 0, 'f', 16 )
.arg( mCachedViewExtent.yMaximum(), 0, 'f', 16 );

// Test for which layers are suitable for querying with
for ( QStringList::const_iterator
Expand Down Expand Up @@ -3819,7 +3835,6 @@ QVector<QgsWmsSupportedFormat> QgsWmsProvider::supportedFormats()
QVector<QgsWmsSupportedFormat> formats;
QStringList mFormats, mLabels;


QList<QByteArray> supportedFormats = QImageReader::supportedImageFormats();

if ( supportedFormats.contains( "png" ) )
Expand Down Expand Up @@ -3855,6 +3870,22 @@ QVector<QgsWmsSupportedFormat> QgsWmsProvider::supportedFormats()
return formats;
}

QString QgsWmsProvider::nodeAttribute( const QDomElement &e, QString name, QString defValue )
{
if ( e.hasAttribute( name ) )
return e.attribute( name );

QDomNamedNodeMap map( e.attributes() );
for ( int i = 0; i < map.size(); i++ )
{
QDomAttr attr( map.item( i ).toElement().toAttr() );
if ( attr.name().compare( name, Qt::CaseInsensitive ) == 0 )
return attr.value();
}

return defValue;
}

void QgsWmsProvider::showMessageBox( const QString& title, const QString& text )
{
QgsMessageOutput *message = QgsMessageOutput::createMessageOutput();
Expand Down Expand Up @@ -3892,4 +3923,3 @@ QGISEXTERN bool isProvider()
{
return true;
}

7 changes: 5 additions & 2 deletions src/providers/wms/qgswmsprovider.h
View file
Expand Up @@ -392,8 +392,8 @@ struct QgsWmtsTileLayer
QString title, abstract;
QStringList keywords;
QgsWmsBoundingBoxProperty boundingBox;
QString format;
QString infoFormat;
QStringList formats;
QStringList infoFormats;
QString defaultStyle;
QHash<QString, QgsWmtsDimension> dimensions;
QHash<QString, QgsWmtsStyle> styles;
Expand Down Expand Up @@ -772,6 +772,9 @@ class QgsWmsProvider : public QgsRasterDataProvider
private:
void showMessageBox( const QString& title, const QString& text );

// case insensitive attribute value lookup
static QString nodeAttribute( const QDomElement &e, QString name, QString defValue = QString::null );

/**
* \brief Retrieve and parse the (cached) Capabilities document from the server
*
Expand Down
48 changes: 26 additions & 22 deletions src/providers/wms/qgswmssourceselect.cpp
View file
Expand Up @@ -362,30 +362,34 @@ bool QgsWMSSourceSelect::populateLayerList( QgsWmsProvider *wmsProvider )
{
foreach( const QgsWmtsTileMatrixSetLink &setLink, l.setLinks )
{
QTableWidgetItem *item = new QTableWidgetItem( l.identifier );
item->setData( Qt::UserRole + 0, l.identifier );
item->setData( Qt::UserRole + 1, l.format );
item->setData( Qt::UserRole + 2, style.identifier );
item->setData( Qt::UserRole + 3, setLink.tileMatrixSet );
item->setData( Qt::UserRole + 4, tileMatrixSets[ setLink.tileMatrixSet ].crs );

lstTilesets->setItem( row, 0, item );
lstTilesets->setItem( row, 1, new QTableWidgetItem( l.format ) );
lstTilesets->setItem( row, 2, new QTableWidgetItem( style.identifier ) );
QTableWidgetItem *styleItem = new QTableWidgetItem( l.title );
if ( !l.abstract.isEmpty() )
styleItem->setToolTip( "<p>" + l.abstract + "</p>" );
lstTilesets->setItem( row, 3, styleItem );
lstTilesets->setItem( row, 4, new QTableWidgetItem( setLink.tileMatrixSet ) );
lstTilesets->setItem( row, 5, new QTableWidgetItem( tileMatrixSets[ setLink.tileMatrixSet ].crs ) );

if ( !mMimeMap.contains( l.format ) )
foreach( QString format, l.formats )
{
for ( int i = 0; i < lstTilesets->columnCount(); i++ )
QTableWidgetItem *item = new QTableWidgetItem( l.identifier );
item->setData( Qt::UserRole + 0, l.identifier );

item->setData( Qt::UserRole + 1, format );
item->setData( Qt::UserRole + 2, style.identifier );
item->setData( Qt::UserRole + 3, setLink.tileMatrixSet );
item->setData( Qt::UserRole + 4, tileMatrixSets[ setLink.tileMatrixSet ].crs );

lstTilesets->setItem( row, 0, item );
lstTilesets->setItem( row, 1, new QTableWidgetItem( format ) );
lstTilesets->setItem( row, 2, new QTableWidgetItem( style.identifier ) );
QTableWidgetItem *styleItem = new QTableWidgetItem( l.title );
if ( !l.abstract.isEmpty() )
styleItem->setToolTip( "<p>" + l.abstract + "</p>" );
lstTilesets->setItem( row, 3, styleItem );
lstTilesets->setItem( row, 4, new QTableWidgetItem( setLink.tileMatrixSet ) );
lstTilesets->setItem( row, 5, new QTableWidgetItem( tileMatrixSets[ setLink.tileMatrixSet ].crs ) );

if ( !mMimeMap.contains( format ) )
{
QTableWidgetItem *item = lstTilesets->item( row, i );
item->setFlags( item->flags() & ~Qt::ItemIsEnabled );
item->setToolTip( tr( "encoding %1 not supported." ).arg( l.format ) );
for ( int i = 0; i < lstTilesets->columnCount(); i++ )
{
QTableWidgetItem *item = lstTilesets->item( row, i );
item->setFlags( item->flags() & ~Qt::ItemIsEnabled );
item->setToolTip( tr( "encoding %1 not supported." ).arg( format ) );
}
}
}

Expand Down

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