void QgsOSMDownloadDialog::onCurrentLayerChanged( int index )
{
if ( index < 0 )
return;
QString layerId = cboLayers->itemData( index ).toString();
QgsMapLayer* layer = QgsMapLayerRegistry::instance()->mapLayer( layerId );
if ( !layer )
return;
QgsCoordinateReferenceSystem dst( GEOCRS_ID, QgsCoordinateReferenceSystem::InternalCrsId );
QgsCoordinateTransform ct( layer->crs(), dst );
QgsRectangle rect( ct.transformBoundingBox( layer->extent() ) );
if ( rect.isFinite() )
setRect( rect );
else
QMessageBox::information( this, tr( "OpenStreetMap download" ), tr( "Could not transform layer extent." ) );
}
void QgsMapRenderer::render( QPainter* painter, double* forceWidthScale )
{
//Lock render method for concurrent threads (e.g. from globe)
QMutexLocker renderLock( &mRenderMutex );
//flag to see if the render context has changed
//since the last time we rendered. If it hasnt changed we can
//take some shortcuts with rendering
bool mySameAsLastFlag = true;
QgsDebugMsg( "========== Rendering ==========" );
if ( mExtent.isEmpty() )
{
QgsDebugMsg( "empty extent... not rendering" );
return;
}
if ( mSize.width() == 1 && mSize.height() == 1 )
{
QgsDebugMsg( "size 1x1... not rendering" );
return;
}
QPaintDevice* thePaintDevice = painter->device();
if ( !thePaintDevice )
{
return;
}
// wait
if ( mDrawing )
{
QgsDebugMsg( "already rendering" );
QCoreApplication::processEvents();
}
if ( mDrawing )
{
QgsDebugMsg( "still rendering - skipping" );
return;
}
mDrawing = true;
const QgsCoordinateTransform *ct;
#ifdef QGISDEBUG
QgsDebugMsg( "Starting to render layer stack." );
QTime renderTime;
renderTime.start();
#endif
if ( mOverview )
mRenderContext.setDrawEditingInformation( !mOverview );
mRenderContext.setPainter( painter );
mRenderContext.setCoordinateTransform( 0 );
//this flag is only for stopping during the current rendering progress,
//so must be false at every new render operation
mRenderContext.setRenderingStopped( false );
// set selection color
QgsProject* prj = QgsProject::instance();
int myRed = prj->readNumEntry( "Gui", "/SelectionColorRedPart", 255 );
int myGreen = prj->readNumEntry( "Gui", "/SelectionColorGreenPart", 255 );
int myBlue = prj->readNumEntry( "Gui", "/SelectionColorBluePart", 0 );
int myAlpha = prj->readNumEntry( "Gui", "/SelectionColorAlphaPart", 255 );
mRenderContext.setSelectionColor( QColor( myRed, myGreen, myBlue, myAlpha ) );
//calculate scale factor
//use the specified dpi and not those from the paint device
//because sometimes QPainter units are in a local coord sys (e.g. in case of QGraphicsScene)
double sceneDpi = mScaleCalculator->dpi();
double scaleFactor = 1.0;
if ( mOutputUnits == QgsMapRenderer::Millimeters )
{
if ( forceWidthScale )
{
scaleFactor = *forceWidthScale;
}
else
{
scaleFactor = sceneDpi / 25.4;
}
}
double rasterScaleFactor = ( thePaintDevice->logicalDpiX() + thePaintDevice->logicalDpiY() ) / 2.0 / sceneDpi;
if ( mRenderContext.rasterScaleFactor() != rasterScaleFactor )
{
mRenderContext.setRasterScaleFactor( rasterScaleFactor );
mySameAsLastFlag = false;
}
if ( mRenderContext.scaleFactor() != scaleFactor )
{
mRenderContext.setScaleFactor( scaleFactor );
mySameAsLastFlag = false;
}
if ( mRenderContext.rendererScale() != mScale )
{
//add map scale to render context
mRenderContext.setRendererScale( mScale );
mySameAsLastFlag = false;
}
if ( mLastExtent != mExtent )
{
mLastExtent = mExtent;
mySameAsLastFlag = false;
}
mRenderContext.setLabelingEngine( mLabelingEngine );
if ( mLabelingEngine )
mLabelingEngine->init( this );
// know we know if this render is just a repeat of the last time, we
// can clear caches if it has changed
if ( !mySameAsLastFlag )
{
//clear the cache pixmap if we changed resolution / extent
QSettings mySettings;
if ( mySettings.value( "/qgis/enable_render_caching", false ).toBool() )
{
QgsMapLayerRegistry::instance()->clearAllLayerCaches();
}
}
// render all layers in the stack, starting at the base
QListIterator<QString> li( mLayerSet );
li.toBack();
QgsRectangle r1, r2;
while ( li.hasPrevious() )
{
if ( mRenderContext.renderingStopped() )
{
break;
}
// Store the painter in case we need to swap it out for the
// cache painter
QPainter * mypContextPainter = mRenderContext.painter();
// Flattened image for drawing when a blending mode is set
QImage * mypFlattenedImage = 0;
QString layerId = li.previous();
QgsDebugMsg( "Rendering at layer item " + layerId );
// This call is supposed to cause the progress bar to
// advance. However, it seems that updating the progress bar is
// incompatible with having a QPainter active (the one that is
// passed into this function), as Qt produces a number of errors
// when try to do so. I'm (Gavin) not sure how to fix this, but
// added these comments and debug statement to help others...
QgsDebugMsg( "If there is a QPaintEngine error here, it is caused by an emit call" );
//emit drawingProgress(myRenderCounter++, mLayerSet.size());
QgsMapLayer *ml = QgsMapLayerRegistry::instance()->mapLayer( layerId );
if ( !ml )
{
QgsDebugMsg( "Layer not found in registry!" );
continue;
}
QgsDebugMsg( QString( "layer %1: minscale:%2 maxscale:%3 scaledepvis:%4 extent:%5 blendmode:%6" )
.arg( ml->name() )
.arg( ml->minimumScale() )
.arg( ml->maximumScale() )
.arg( ml->hasScaleBasedVisibility() )
.arg( ml->extent().toString() )
.arg( ml->blendMode() )
);
if ( mRenderContext.useAdvancedEffects() )
{
// Set the QPainter composition mode so that this layer is rendered using
// the desired blending mode
mypContextPainter->setCompositionMode( ml->blendMode() );
}
if ( !ml->hasScaleBasedVisibility() || ( ml->minimumScale() <= mScale && mScale < ml->maximumScale() ) || mOverview )
{
connect( ml, SIGNAL( drawingProgress( int, int ) ), this, SLOT( onDrawingProgress( int, int ) ) );
//
// Now do the call to the layer that actually does
// the rendering work!
//
bool split = false;
if ( hasCrsTransformEnabled() )
{
r1 = mExtent;
split = splitLayersExtent( ml, r1, r2 );
ct = transformation( ml );
mRenderContext.setExtent( r1 );
QgsDebugMsg( " extent 1: " + r1.toString() );
QgsDebugMsg( " extent 2: " + r2.toString() );
if ( !r1.isFinite() || !r2.isFinite() ) //there was a problem transforming the extent. Skip the layer
{
continue;
}
}
else
{
ct = NULL;
}
mRenderContext.setCoordinateTransform( ct );
//decide if we have to scale the raster
//this is necessary in case QGraphicsScene is used
bool scaleRaster = false;
QgsMapToPixel rasterMapToPixel;
QgsMapToPixel bk_mapToPixel;
if ( ml->type() == QgsMapLayer::RasterLayer && qAbs( rasterScaleFactor - 1.0 ) > 0.000001 )
{
scaleRaster = true;
}
// Force render of layers that are being edited
// or if there's a labeling engine that needs the layer to register features
if ( ml->type() == QgsMapLayer::VectorLayer )
{
QgsVectorLayer* vl = qobject_cast<QgsVectorLayer *>( ml );
if ( vl->isEditable() ||
( mRenderContext.labelingEngine() && mRenderContext.labelingEngine()->willUseLayer( vl ) ) )
{
ml->setCacheImage( 0 );
}
}
QSettings mySettings;
bool useRenderCaching = false;
if ( ! split )//render caching does not yet cater for split extents
{
if ( mySettings.value( "/qgis/enable_render_caching", false ).toBool() )
{
useRenderCaching = true;
if ( !mySameAsLastFlag || ml->cacheImage() == 0 )
{
QgsDebugMsg( "Caching enabled but layer redraw forced by extent change or empty cache" );
QImage * mypImage = new QImage( mRenderContext.painter()->device()->width(),
mRenderContext.painter()->device()->height(), QImage::Format_ARGB32 );
if ( mypImage->isNull() )
{
QgsDebugMsg( "insufficient memory for image " + QString::number( mRenderContext.painter()->device()->width() ) + "x" + QString::number( mRenderContext.painter()->device()->height() ) );
emit drawError( ml );
painter->end(); // drawError is not caught by anyone, so we end painting to notify caller
return;
}
mypImage->fill( 0 );
ml->setCacheImage( mypImage ); //no need to delete the old one, maplayer does it for you
QPainter * mypPainter = new QPainter( ml->cacheImage() );
// Changed to enable anti aliasing by default in QGIS 1.7
if ( mySettings.value( "/qgis/enable_anti_aliasing", true ).toBool() )
{
mypPainter->setRenderHint( QPainter::Antialiasing );
}
mRenderContext.setPainter( mypPainter );
}
else if ( mySameAsLastFlag )
{
//draw from cached image
QgsDebugMsg( "Caching enabled --- drawing layer from cached image" );
mypContextPainter->drawImage( 0, 0, *( ml->cacheImage() ) );
disconnect( ml, SIGNAL( drawingProgress( int, int ) ), this, SLOT( onDrawingProgress( int, int ) ) );
//short circuit as there is nothing else to do...
continue;
}
}
}
// If we are drawing with an alternative blending mode then we need to render to a separate image
// before compositing this on the map. This effectively flattens the layer and prevents
// blending occuring between objects on the layer
// (this is not required for raster layers or when layer caching is enabled, since that has the same effect)
bool flattenedLayer = false;
if (( mRenderContext.useAdvancedEffects() ) && ( ml->type() == QgsMapLayer::VectorLayer ) )
{
QgsVectorLayer* vl = qobject_cast<QgsVectorLayer *>( ml );
if (( !useRenderCaching )
&& (( vl->blendMode() != QPainter::CompositionMode_SourceOver )
|| ( vl->featureBlendMode() != QPainter::CompositionMode_SourceOver )
|| ( vl->layerTransparency() != 0 ) ) )
{
flattenedLayer = true;
mypFlattenedImage = new QImage( mRenderContext.painter()->device()->width(),
mRenderContext.painter()->device()->height(), QImage::Format_ARGB32 );
if ( mypFlattenedImage->isNull() )
{
QgsDebugMsg( "insufficient memory for image " + QString::number( mRenderContext.painter()->device()->width() ) + "x" + QString::number( mRenderContext.painter()->device()->height() ) );
emit drawError( ml );
painter->end(); // drawError is not caught by anyone, so we end painting to notify caller
return;
}
mypFlattenedImage->fill( 0 );
QPainter * mypPainter = new QPainter( mypFlattenedImage );
if ( mySettings.value( "/qgis/enable_anti_aliasing", true ).toBool() )
{
mypPainter->setRenderHint( QPainter::Antialiasing );
}
mypPainter->scale( rasterScaleFactor, rasterScaleFactor );
mRenderContext.setPainter( mypPainter );
}
}
// Per feature blending mode
if (( mRenderContext.useAdvancedEffects() ) && ( ml->type() == QgsMapLayer::VectorLayer ) )
{
QgsVectorLayer* vl = qobject_cast<QgsVectorLayer *>( ml );
if ( vl->featureBlendMode() != QPainter::CompositionMode_SourceOver )
{
// set the painter to the feature blend mode, so that features drawn
// on this layer will interact and blend with each other
mRenderContext.painter()->setCompositionMode( vl->featureBlendMode() );
}
}
if ( scaleRaster )
{
bk_mapToPixel = mRenderContext.mapToPixel();
rasterMapToPixel = mRenderContext.mapToPixel();
rasterMapToPixel.setMapUnitsPerPixel( mRenderContext.mapToPixel().mapUnitsPerPixel() / rasterScaleFactor );
rasterMapToPixel.setYMaximum( mSize.height() * rasterScaleFactor );
mRenderContext.setMapToPixel( rasterMapToPixel );
mRenderContext.painter()->save();
mRenderContext.painter()->scale( 1.0 / rasterScaleFactor, 1.0 / rasterScaleFactor );
}
if ( !ml->draw( mRenderContext ) )
{
emit drawError( ml );
}
else
{
QgsDebugMsg( "Layer rendered without issues" );
}
if ( split )
{
mRenderContext.setExtent( r2 );
if ( !ml->draw( mRenderContext ) )
{
emit drawError( ml );
}
}
if ( scaleRaster )
{
mRenderContext.setMapToPixel( bk_mapToPixel );
mRenderContext.painter()->restore();
}
//apply layer transparency for vector layers
if (( mRenderContext.useAdvancedEffects() ) && ( ml->type() == QgsMapLayer::VectorLayer ) )
{
QgsVectorLayer* vl = qobject_cast<QgsVectorLayer *>( ml );
if ( vl->layerTransparency() != 0 )
{
// a layer transparency has been set, so update the alpha for the flattened layer
// by combining it with the layer transparency
QColor transparentFillColor = QColor( 0, 0, 0, 255 - ( 255 * vl->layerTransparency() / 100 ) );
// use destination in composition mode to merge source's alpha with destination
mRenderContext.painter()->setCompositionMode( QPainter::CompositionMode_DestinationIn );
mRenderContext.painter()->fillRect( 0, 0, mRenderContext.painter()->device()->width(),
mRenderContext.painter()->device()->height(), transparentFillColor );
}
}
if ( useRenderCaching )
{
// composite the cached image into our view and then clean up from caching
// by reinstating the painter as it was swapped out for caching renders
delete mRenderContext.painter();
mRenderContext.setPainter( mypContextPainter );
//draw from cached image that we created further up
if ( ml->cacheImage() )
mypContextPainter->drawImage( 0, 0, *( ml->cacheImage() ) );
}
else if ( flattenedLayer )
{
// If we flattened this layer for alternate blend modes, composite it now
delete mRenderContext.painter();
mRenderContext.setPainter( mypContextPainter );
mypContextPainter->save();
mypContextPainter->scale( 1.0 / rasterScaleFactor, 1.0 / rasterScaleFactor );
mypContextPainter->drawImage( 0, 0, *( mypFlattenedImage ) );
mypContextPainter->restore();
delete mypFlattenedImage;
mypFlattenedImage = 0;
}
disconnect( ml, SIGNAL( drawingProgress( int, int ) ), this, SLOT( onDrawingProgress( int, int ) ) );
}
void QgsWfsProjectParser::featureTypeList( QDomElement& parentElement, QDomDocument& doc ) const
{
const QList<QDomElement>& projectLayerElements = mProjectParser->projectLayerElements();
if ( projectLayerElements.size() < 1 )
{
return;
}
QStringList wfsLayersId = mProjectParser->wfsLayers();
QSet<QString> wfstUpdateLayersId = wfstUpdateLayers();
QSet<QString> wfstInsertLayersId = wfstInsertLayers();
QSet<QString> wfstDeleteLayersId = wfstDeleteLayers();
QMap<QString, QgsMapLayer *> layerMap;
Q_FOREACH ( const QDomElement &elem, projectLayerElements )
{
QString type = elem.attribute( "type" );
if ( type == "vector" )
{
QString layerId = mProjectParser->layerId( elem );
if ( !wfsLayersId.contains( layerId ) )
{
continue;
}
QgsMapLayer *layer = mProjectParser->createLayerFromElement( elem );
if ( !layer )
{
continue;
}
#ifdef HAVE_SERVER_PYTHON_PLUGINS
if ( !mAccessControl->layerReadPermission( layer ) )
{
continue;
}
#endif
QgsDebugMsg( QString( "add layer %1 to map" ).arg( layer->id() ) );
layerMap.insert( layer->id(), layer );
QDomElement layerElem = doc.createElement( "FeatureType" );
QDomElement nameElem = doc.createElement( "Name" );
//We use the layer name even though it might not be unique.
//Because the id sometimes contains user/pw information and the name is more descriptive
QString typeName = layer->name();
if ( !layer->shortName().isEmpty() )
typeName = layer->shortName();
typeName = typeName.replace( " ", "_" );
QDomText nameText = doc.createTextNode( typeName );
nameElem.appendChild( nameText );
layerElem.appendChild( nameElem );
QDomElement titleElem = doc.createElement( "Title" );
QString titleName = layer->title();
if ( titleName.isEmpty() )
{
titleName = layer->name();
}
QDomText titleText = doc.createTextNode( titleName );
titleElem.appendChild( titleText );
layerElem.appendChild( titleElem );
QDomElement abstractElem = doc.createElement( "Abstract" );
QString abstractName = layer->abstract();
if ( abstractName.isEmpty() )
{
abstractName = "";
}
QDomText abstractText = doc.createTextNode( abstractName );
abstractElem.appendChild( abstractText );
layerElem.appendChild( abstractElem );
//keyword list
if ( !layer->keywordList().isEmpty() )
{
QDomElement keywordsElem = doc.createElement( "Keywords" );
QDomText keywordsText = doc.createTextNode( layer->keywordList() );
keywordsElem.appendChild( keywordsText );
layerElem.appendChild( keywordsElem );
}
//appendExGeographicBoundingBox( layerElem, doc, layer->extent(), layer->crs() );
QDomElement srsElem = doc.createElement( "SRS" );
QDomText srsText = doc.createTextNode( layer->crs().authid() );
srsElem.appendChild( srsText );
layerElem.appendChild( srsElem );
//wfs:Operations element
QDomElement operationsElement = doc.createElement( "Operations"/*wfs:Operations*/ );
//wfs:Query element
QDomElement queryElement = doc.createElement( "Query"/*wfs:Query*/ );
operationsElement.appendChild( queryElement );
QgsVectorLayer* vlayer = qobject_cast<QgsVectorLayer*>( layer );
QgsVectorDataProvider* provider = vlayer->dataProvider();
if (( provider->capabilities() & QgsVectorDataProvider::AddFeatures ) && wfstInsertLayersId.contains( layer->id() ) )
{
//wfs:Insert element
QDomElement insertElement = doc.createElement( "Insert"/*wfs:Insert*/ );
operationsElement.appendChild( insertElement );
}
if (( provider->capabilities() & QgsVectorDataProvider::ChangeAttributeValues ) &&
( provider->capabilities() & QgsVectorDataProvider::ChangeGeometries ) &&
wfstUpdateLayersId.contains( layer->id() ) )
{
//wfs:Update element
QDomElement updateElement = doc.createElement( "Update"/*wfs:Update*/ );
operationsElement.appendChild( updateElement );
}
if (( provider->capabilities() & QgsVectorDataProvider::DeleteFeatures ) && wfstDeleteLayersId.contains( layer->id() ) )
{
//wfs:Delete element
QDomElement deleteElement = doc.createElement( "Delete"/*wfs:Delete*/ );
operationsElement.appendChild( deleteElement );
}
layerElem.appendChild( operationsElement );
QgsRectangle layerExtent = layer->extent();
QDomElement bBoxElement = doc.createElement( "LatLongBoundingBox" );
bBoxElement.setAttribute( "minx", QString::number( layerExtent.xMinimum() ) );
bBoxElement.setAttribute( "miny", QString::number( layerExtent.yMinimum() ) );
bBoxElement.setAttribute( "maxx", QString::number( layerExtent.xMaximum() ) );
bBoxElement.setAttribute( "maxy", QString::number( layerExtent.yMaximum() ) );
layerElem.appendChild( bBoxElement );
// layer metadata URL
QString metadataUrl = layer->metadataUrl();
if ( !metadataUrl.isEmpty() )
{
QDomElement metaUrlElem = doc.createElement( "MetadataURL" );
QString metadataUrlType = layer->metadataUrlType();
metaUrlElem.setAttribute( "type", metadataUrlType );
QString metadataUrlFormat = layer->metadataUrlFormat();
if ( metadataUrlFormat == "text/xml" )
{
metaUrlElem.setAttribute( "format", "XML" );
}
else
{
metaUrlElem.setAttribute( "format", "TXT" );
}
QDomText metaUrlText = doc.createTextNode( metadataUrl );
metaUrlElem.appendChild( metaUrlText );
layerElem.appendChild( metaUrlElem );
}
parentElement.appendChild( layerElem );
}
}
QDomElement getFeatureTypeListElement( QDomDocument &doc, QgsServerInterface *serverIface, const QgsProject *project )
{
QgsAccessControl *accessControl = serverIface->accessControls();
//wfs:FeatureTypeList element
QDomElement featureTypeListElement = doc.createElement( QStringLiteral( "FeatureTypeList" )/*wfs:FeatureTypeList*/ );
//wfs:Operations element
QDomElement operationsElement = doc.createElement( QStringLiteral( "Operations" )/*wfs:Operations*/ );
featureTypeListElement.appendChild( operationsElement );
//wfs:Query element
QDomElement queryElement = doc.createElement( QStringLiteral( "Query" )/*wfs:Query*/ );
operationsElement.appendChild( queryElement );
QStringList wfsLayerIds = QgsServerProjectUtils::wfsLayerIds( *project );
QStringList wfstUpdateLayersId = QgsServerProjectUtils::wfstUpdateLayerIds( *project );
QStringList wfstInsertLayersId = QgsServerProjectUtils::wfstInsertLayerIds( *project );
QStringList wfstDeleteLayersId = QgsServerProjectUtils::wfstDeleteLayerIds( *project );
for ( int i = 0; i < wfsLayerIds.size(); ++i )
{
QgsMapLayer *layer = project->mapLayer( wfsLayerIds.at( i ) );
if ( layer->type() != QgsMapLayer::LayerType::VectorLayer )
{
continue;
}
if ( accessControl && !accessControl->layerReadPermission( layer ) )
{
continue;
}
QDomElement layerElem = doc.createElement( QStringLiteral( "FeatureType" ) );
//create Name
QDomElement nameElem = doc.createElement( QStringLiteral( "Name" ) );
QString typeName = layer->name();
if ( !layer->shortName().isEmpty() )
typeName = layer->shortName();
typeName = typeName.replace( QLatin1String( " " ), QLatin1String( "_" ) );
QDomText nameText = doc.createTextNode( typeName );
nameElem.appendChild( nameText );
layerElem.appendChild( nameElem );
//create Title
QDomElement titleElem = doc.createElement( QStringLiteral( "Title" ) );
QString title = layer->title();
if ( title.isEmpty() )
{
title = layer->name();
}
QDomText titleText = doc.createTextNode( title );
titleElem.appendChild( titleText );
layerElem.appendChild( titleElem );
//create Abstract
QString abstract = layer->abstract();
if ( !abstract.isEmpty() )
{
QDomElement abstractElem = doc.createElement( QStringLiteral( "Abstract" ) );
QDomText abstractText = doc.createTextNode( abstract );
abstractElem.appendChild( abstractText );
layerElem.appendChild( abstractElem );
}
//create keywords
QString keywords = layer->keywordList();
if ( !keywords.isEmpty() )
{
QDomElement keywordsElem = doc.createElement( QStringLiteral( "Keywords" ) );
QDomText keywordsText = doc.createTextNode( keywords );
keywordsElem.appendChild( keywordsText );
layerElem.appendChild( keywordsElem );
}
//create SRS
QDomElement srsElem = doc.createElement( QStringLiteral( "SRS" ) );
QDomText srsText = doc.createTextNode( layer->crs().authid() );
srsElem.appendChild( srsText );
layerElem.appendChild( srsElem );
//create LatLongBoundingBox
QgsRectangle layerExtent = layer->extent();
QDomElement bBoxElement = doc.createElement( QStringLiteral( "LatLongBoundingBox" ) );
bBoxElement.setAttribute( QStringLiteral( "minx" ), QString::number( layerExtent.xMinimum() ) );
bBoxElement.setAttribute( QStringLiteral( "miny" ), QString::number( layerExtent.yMinimum() ) );
bBoxElement.setAttribute( QStringLiteral( "maxx" ), QString::number( layerExtent.xMaximum() ) );
bBoxElement.setAttribute( QStringLiteral( "maxy" ), QString::number( layerExtent.yMaximum() ) );
layerElem.appendChild( bBoxElement );
// layer metadata URL
QString metadataUrl = layer->metadataUrl();
if ( !metadataUrl.isEmpty() )
{
QDomElement metaUrlElem = doc.createElement( QStringLiteral( "MetadataURL" ) );
QString metadataUrlType = layer->metadataUrlType();
metaUrlElem.setAttribute( QStringLiteral( "type" ), metadataUrlType );
QString metadataUrlFormat = layer->metadataUrlFormat();
if ( metadataUrlFormat == QLatin1String( "text/xml" ) )
{
metaUrlElem.setAttribute( QStringLiteral( "format" ), QStringLiteral( "XML" ) );
}
else
{
metaUrlElem.setAttribute( QStringLiteral( "format" ), QStringLiteral( "TXT" ) );
}
QDomText metaUrlText = doc.createTextNode( metadataUrl );
metaUrlElem.appendChild( metaUrlText );
layerElem.appendChild( metaUrlElem );
}
//wfs:Operations element
QDomElement operationsElement = doc.createElement( QStringLiteral( "Operations" )/*wfs:Operations*/ );
//wfs:Query element
QDomElement queryElement = doc.createElement( QStringLiteral( "Query" )/*wfs:Query*/ );
operationsElement.appendChild( queryElement );
if ( wfstUpdateLayersId.contains( layer->id() ) ||
wfstInsertLayersId.contains( layer->id() ) ||
wfstDeleteLayersId.contains( layer->id() ) )
{
QgsVectorLayer *vlayer = qobject_cast<QgsVectorLayer *>( layer );
QgsVectorDataProvider *provider = vlayer->dataProvider();
if ( ( provider->capabilities() & QgsVectorDataProvider::AddFeatures ) && wfstInsertLayersId.contains( layer->id() ) )
{
//wfs:Insert element
QDomElement insertElement = doc.createElement( QStringLiteral( "Insert" )/*wfs:Insert*/ );
operationsElement.appendChild( insertElement );
}
if ( ( provider->capabilities() & QgsVectorDataProvider::ChangeAttributeValues ) &&
( provider->capabilities() & QgsVectorDataProvider::ChangeGeometries ) &&
wfstUpdateLayersId.contains( layer->id() ) )
{
//wfs:Update element
QDomElement updateElement = doc.createElement( QStringLiteral( "Update" )/*wfs:Update*/ );
operationsElement.appendChild( updateElement );
}
if ( ( provider->capabilities() & QgsVectorDataProvider::DeleteFeatures ) && wfstDeleteLayersId.contains( layer->id() ) )
{
//wfs:Delete element
QDomElement deleteElement = doc.createElement( QStringLiteral( "Delete" )/*wfs:Delete*/ );
operationsElement.appendChild( deleteElement );
}
}
layerElem.appendChild( operationsElement );
featureTypeListElement.appendChild( layerElem );
}
return featureTypeListElement;
}
LayerRenderJobs QgsMapRendererJob::prepareJobs( QPainter* painter, QgsPalLabeling* labelingEngine )
{
LayerRenderJobs layerJobs;
// render all layers in the stack, starting at the base
QListIterator<QString> li( mSettings.layers() );
li.toBack();
if ( mCache )
{
bool cacheValid = mCache->init( mSettings.visibleExtent(), mSettings.scale() );
QgsDebugMsg( QString( "CACHE VALID: %1" ).arg( cacheValid ) );
Q_UNUSED( cacheValid );
}
mGeometryCaches.clear();
while ( li.hasPrevious() )
{
QString layerId = li.previous();
QgsDebugMsg( "Rendering at layer item " + layerId );
QgsMapLayer *ml = QgsMapLayerRegistry::instance()->mapLayer( layerId );
if ( !ml )
{
mErrors.append( Error( layerId, "Layer not found in registry." ) );
continue;
}
QgsDebugMsg( QString( "layer %1: minscale:%2 maxscale:%3 scaledepvis:%4 extent:%5 blendmode:%6" )
.arg( ml->name() )
.arg( ml->minimumScale() )
.arg( ml->maximumScale() )
.arg( ml->hasScaleBasedVisibility() )
.arg( ml->extent().toString() )
.arg( ml->blendMode() )
);
if ( ml->hasScaleBasedVisibility() && ( mSettings.scale() < ml->minimumScale() || mSettings.scale() > ml->maximumScale() ) ) //|| mOverview )
{
QgsDebugMsg( "Layer not rendered because it is not within the defined visibility scale range" );
continue;
}
QgsRectangle r1 = mSettings.visibleExtent(), r2;
const QgsCoordinateTransform* ct = 0;
if ( mSettings.hasCrsTransformEnabled() )
{
ct = mSettings.layerTransfrom( ml );
if ( ct )
{
reprojectToLayerExtent( ct, ml->crs().geographicFlag(), r1, r2 );
}
QgsDebugMsg( "extent: " + r1.toString() );
if ( !r1.isFinite() || !r2.isFinite() )
{
mErrors.append( Error( layerId, "There was a problem transforming layer's' extent. Layer skipped." ) );
continue;
}
}
// Force render of layers that are being edited
// or if there's a labeling engine that needs the layer to register features
if ( mCache && ml->type() == QgsMapLayer::VectorLayer )
{
QgsVectorLayer* vl = qobject_cast<QgsVectorLayer *>( ml );
if ( vl->isEditable() || ( labelingEngine && labelingEngine->willUseLayer( vl ) ) )
mCache->clearCacheImage( ml->id() );
}
layerJobs.append( LayerRenderJob() );
LayerRenderJob& job = layerJobs.last();
job.cached = false;
job.img = 0;
job.blendMode = ml->blendMode();
job.layerId = ml->id();
job.context = QgsRenderContext::fromMapSettings( mSettings );
job.context.setPainter( painter );
job.context.setLabelingEngine( labelingEngine );
job.context.setCoordinateTransform( ct );
job.context.setExtent( r1 );
// if we can use the cache, let's do it and avoid rendering!
if ( mCache && !mCache->cacheImage( ml->id() ).isNull() )
{
job.cached = true;
job.img = new QImage( mCache->cacheImage( ml->id() ) );
job.renderer = 0;
job.context.setPainter( 0 );
continue;
}
// If we are drawing with an alternative blending mode then we need to render to a separate image
// before compositing this on the map. This effectively flattens the layer and prevents
// blending occuring between objects on the layer
if ( mCache || !painter || needTemporaryImage( ml ) )
{
// Flattened image for drawing when a blending mode is set
QImage * mypFlattenedImage = 0;
mypFlattenedImage = new QImage( mSettings.outputSize().width(),
mSettings.outputSize().height(),
mSettings.outputImageFormat() );
if ( mypFlattenedImage->isNull() )
{
mErrors.append( Error( layerId, "Insufficient memory for image " + QString::number( mSettings.outputSize().width() ) + "x" + QString::number( mSettings.outputSize().height() ) ) );
delete mypFlattenedImage;
layerJobs.removeLast();
continue;
}
mypFlattenedImage->fill( 0 );
job.img = mypFlattenedImage;
QPainter* mypPainter = new QPainter( job.img );
mypPainter->setRenderHint( QPainter::Antialiasing, mSettings.testFlag( QgsMapSettings::Antialiasing ) );
job.context.setPainter( mypPainter );
}
job.renderer = ml->createMapRenderer( job.context );
if ( mRequestedGeomCacheForLayers.contains( ml->id() ) )
{
if ( QgsVectorLayerRenderer* vlr = dynamic_cast<QgsVectorLayerRenderer*>( job.renderer ) )
{
vlr->setGeometryCachePointer( &mGeometryCaches[ ml->id()] );
}
}
} // while (li.hasPrevious())
return layerJobs;
}
QgsRectangle QgsMapSettings::fullExtent() const
{
QgsDebugMsg( "called." );
QgsMapLayerRegistry* registry = QgsMapLayerRegistry::instance();
// reset the map canvas extent since the extent may now be smaller
// We can't use a constructor since QgsRectangle normalizes the rectangle upon construction
QgsRectangle fullExtent;
fullExtent.setMinimal();
// iterate through the map layers and test each layers extent
// against the current min and max values
QStringList::const_iterator it = mLayers.begin();
QgsDebugMsg( QString( "Layer count: %1" ).arg( mLayers.count() ) );
while ( it != mLayers.end() )
{
QgsMapLayer * lyr = registry->mapLayer( *it );
if ( !lyr )
{
QgsDebugMsg( QString( "WARNING: layer '%1' not found in map layer registry!" ).arg( *it ) );
}
else
{
QgsDebugMsg( "Updating extent using " + lyr->name() );
QgsDebugMsg( "Input extent: " + lyr->extent().toString() );
if ( lyr->extent().isNull() )
{
++it;
continue;
}
// Layer extents are stored in the coordinate system (CS) of the
// layer. The extent must be projected to the canvas CS
QgsRectangle extent = layerExtentToOutputExtent( lyr, lyr->extent() );
QgsDebugMsg( "Output extent: " + extent.toString() );
fullExtent.unionRect( extent );
}
++it;
}
if ( fullExtent.width() == 0.0 || fullExtent.height() == 0.0 )
{
// If all of the features are at the one point, buffer the
// rectangle a bit. If they are all at zero, do something a bit
// more crude.
if ( fullExtent.xMinimum() == 0.0 && fullExtent.xMaximum() == 0.0 &&
fullExtent.yMinimum() == 0.0 && fullExtent.yMaximum() == 0.0 )
{
fullExtent.set( -1.0, -1.0, 1.0, 1.0 );
}
else
{
const double padFactor = 1e-8;
double widthPad = fullExtent.xMinimum() * padFactor;
double heightPad = fullExtent.yMinimum() * padFactor;
double xmin = fullExtent.xMinimum() - widthPad;
double xmax = fullExtent.xMaximum() + widthPad;
double ymin = fullExtent.yMinimum() - heightPad;
double ymax = fullExtent.yMaximum() + heightPad;
fullExtent.set( xmin, ymin, xmax, ymax );
}
}
QgsDebugMsg( "Full extent: " + fullExtent.toString() );
return fullExtent;
}
void QgsWCSProjectParser::wcsContentMetadata( QDomElement& parentElement, QDomDocument& doc ) const
{
const QList<QDomElement>& projectLayerElements = mProjectParser.projectLayerElements();
if ( projectLayerElements.size() < 1 )
{
return;
}
QStringList wcsLayersId = wcsLayers();
QMap<QString, QgsMapLayer *> layerMap;
foreach ( const QDomElement &elem, projectLayerElements )
{
QString type = elem.attribute( "type" );
if ( type == "raster" )
{
QgsMapLayer *layer = mProjectParser.createLayerFromElement( elem );
if ( layer && wcsLayersId.contains( layer->id() ) )
{
QgsDebugMsg( QString( "add layer %1 to map" ).arg( layer->id() ) );
layerMap.insert( layer->id(), layer );
QDomElement layerElem = doc.createElement( "CoverageOfferingBrief" );
QDomElement nameElem = doc.createElement( "name" );
//We use the layer name even though it might not be unique.
//Because the id sometimes contains user/pw information and the name is more descriptive
QString typeName = layer->name();
typeName = typeName.replace( " ", "_" );
QDomText nameText = doc.createTextNode( typeName );
nameElem.appendChild( nameText );
layerElem.appendChild( nameElem );
QDomElement labelElem = doc.createElement( "label" );
QString titleName = layer->title();
if ( titleName.isEmpty() )
{
titleName = layer->name();
}
QDomText labelText = doc.createTextNode( titleName );
labelElem.appendChild( labelText );
layerElem.appendChild( labelElem );
QDomElement descriptionElem = doc.createElement( "description" );
QString abstractName = layer->abstract();
if ( abstractName.isEmpty() )
{
abstractName = "";
}
QDomText descriptionText = doc.createTextNode( abstractName );
descriptionElem.appendChild( descriptionText );
layerElem.appendChild( descriptionElem );
//lonLatEnvelope
const QgsCoordinateReferenceSystem& layerCrs = layer->crs();
QgsCoordinateTransform t( layerCrs, QgsCoordinateReferenceSystem( 4326 ) );
//transform
QgsRectangle BBox = t.transformBoundingBox( layer->extent() );
QDomElement lonLatElem = doc.createElement( "lonLatEnvelope" );
lonLatElem.setAttribute( "srsName", "urn:ogc:def:crs:OGC:1.3:CRS84" );
QDomElement lowerPosElem = doc.createElement( "gml:pos" );
QDomText lowerPosText = doc.createTextNode( QString::number( BBox.xMinimum() ) + " " + QString::number( BBox.yMinimum() ) );
lowerPosElem.appendChild( lowerPosText );
lonLatElem.appendChild( lowerPosElem );
QDomElement upperPosElem = doc.createElement( "gml:pos" );
QDomText upperPosText = doc.createTextNode( QString::number( BBox.xMaximum() ) + " " + QString::number( BBox.yMaximum() ) );
upperPosElem.appendChild( upperPosText );
lonLatElem.appendChild( upperPosElem );
layerElem.appendChild( lonLatElem );
parentElement.appendChild( layerElem );
}
}
}
void QgsMapRenderer::render( QPainter* painter )
{
//flag to see if the render context has changed
//since the last time we rendered. If it hasnt changed we can
//take some shortcuts with rendering
bool mySameAsLastFlag = true;
QgsDebugMsg( "========== Rendering ==========" );
if ( mExtent.isEmpty() )
{
QgsDebugMsg( "empty extent... not rendering" );
return;
}
if ( mSize.width() == 1 && mSize.height() == 1 )
{
QgsDebugMsg( "size 1x1... not rendering" );
return;
}
QPaintDevice* thePaintDevice = painter->device();
if ( !thePaintDevice )
{
return;
}
// wait
if ( mDrawing )
{
QgsDebugMsg( "already rendering" );
QCoreApplication::processEvents();
}
if ( mDrawing )
{
QgsDebugMsg( "still rendering - skipping" );
return;
}
mDrawing = true;
QgsCoordinateTransform* ct;
#ifdef QGISDEBUG
QgsDebugMsg( "Starting to render layer stack." );
QTime renderTime;
renderTime.start();
#endif
if ( mOverview )
mRenderContext.setDrawEditingInformation( !mOverview );
mRenderContext.setPainter( painter );
mRenderContext.setCoordinateTransform( 0 );
//this flag is only for stopping during the current rendering progress,
//so must be false at every new render operation
mRenderContext.setRenderingStopped( false );
//calculate scale factor
//use the specified dpi and not those from the paint device
//because sometimes QPainter units are in a local coord sys (e.g. in case of QGraphicsScene)
double sceneDpi = mScaleCalculator->dpi();
double scaleFactor = 1.0;
if ( mOutputUnits == QgsMapRenderer::Millimeters )
{
scaleFactor = sceneDpi / 25.4;
}
double rasterScaleFactor = ( thePaintDevice->logicalDpiX() + thePaintDevice->logicalDpiY() ) / 2.0 / sceneDpi;
if ( mRenderContext.rasterScaleFactor() != rasterScaleFactor )
{
mRenderContext.setRasterScaleFactor( rasterScaleFactor );
mySameAsLastFlag = false;
}
if ( mRenderContext.scaleFactor() != scaleFactor )
{
mRenderContext.setScaleFactor( scaleFactor );
mySameAsLastFlag = false;
}
if ( mRenderContext.rendererScale() != mScale )
{
//add map scale to render context
mRenderContext.setRendererScale( mScale );
mySameAsLastFlag = false;
}
if ( mLastExtent != mExtent )
{
mLastExtent = mExtent;
mySameAsLastFlag = false;
}
mRenderContext.setLabelingEngine( mLabelingEngine );
if ( mLabelingEngine )
mLabelingEngine->init( this );
// know we know if this render is just a repeat of the last time, we
// can clear caches if it has changed
if ( !mySameAsLastFlag )
{
//clear the cache pixmap if we changed resolution / extent
QSettings mySettings;
if ( mySettings.value( "/qgis/enable_render_caching", false ).toBool() )
{
QgsMapLayerRegistry::instance()->clearAllLayerCaches();
}
}
QgsOverlayObjectPositionManager* overlayManager = overlayManagerFromSettings();
QList<QgsVectorOverlay*> allOverlayList; //list of all overlays, used to draw them after layers have been rendered
// render all layers in the stack, starting at the base
QListIterator<QString> li( mLayerSet );
li.toBack();
QgsRectangle r1, r2;
while ( li.hasPrevious() )
{
if ( mRenderContext.renderingStopped() )
{
break;
}
// Store the painter in case we need to swap it out for the
// cache painter
QPainter * mypContextPainter = mRenderContext.painter();
QString layerId = li.previous();
QgsDebugMsg( "Rendering at layer item " + layerId );
// This call is supposed to cause the progress bar to
// advance. However, it seems that updating the progress bar is
// incompatible with having a QPainter active (the one that is
// passed into this function), as Qt produces a number of errors
// when try to do so. I'm (Gavin) not sure how to fix this, but
// added these comments and debug statement to help others...
QgsDebugMsg( "If there is a QPaintEngine error here, it is caused by an emit call" );
//emit drawingProgress(myRenderCounter++, mLayerSet.size());
QgsMapLayer *ml = QgsMapLayerRegistry::instance()->mapLayer( layerId );
if ( !ml )
{
QgsDebugMsg( "Layer not found in registry!" );
continue;
}
QgsDebugMsg( "Rendering layer " + ml->name() );
QgsDebugMsg( " Layer minscale " + QString( "%1" ).arg( ml->minimumScale() ) );
QgsDebugMsg( " Layer maxscale " + QString( "%1" ).arg( ml->maximumScale() ) );
QgsDebugMsg( " Scale dep. visibility enabled? " + QString( "%1" ).arg( ml->hasScaleBasedVisibility() ) );
QgsDebugMsg( " Input extent: " + ml->extent().toString() );
if ( !ml->hasScaleBasedVisibility() || ( ml->minimumScale() < mScale && mScale < ml->maximumScale() ) || mOverview )
{
connect( ml, SIGNAL( drawingProgress( int, int ) ), this, SLOT( onDrawingProgress( int, int ) ) );
//
// Now do the call to the layer that actually does
// the rendering work!
//
bool split = false;
if ( hasCrsTransformEnabled() )
{
r1 = mExtent;
split = splitLayersExtent( ml, r1, r2 );
ct = new QgsCoordinateTransform( ml->crs(), *mDestCRS );
mRenderContext.setExtent( r1 );
QgsDebugMsg( " extent 1: " + r1.toString() );
QgsDebugMsg( " extent 2: " + r2.toString() );
if ( !r1.isFinite() || !r2.isFinite() ) //there was a problem transforming the extent. Skip the layer
{
continue;
}
}
else
{
ct = NULL;
}
mRenderContext.setCoordinateTransform( ct );
//decide if we have to scale the raster
//this is necessary in case QGraphicsScene is used
bool scaleRaster = false;
QgsMapToPixel rasterMapToPixel;
QgsMapToPixel bk_mapToPixel;
if ( ml->type() == QgsMapLayer::RasterLayer && qAbs( rasterScaleFactor - 1.0 ) > 0.000001 )
{
scaleRaster = true;
}
//create overlay objects for features within the view extent
if ( ml->type() == QgsMapLayer::VectorLayer && overlayManager )
{
QgsVectorLayer* vl = qobject_cast<QgsVectorLayer *>( ml );
if ( vl )
{
QList<QgsVectorOverlay*> thisLayerOverlayList;
vl->vectorOverlays( thisLayerOverlayList );
QList<QgsVectorOverlay*>::iterator overlayIt = thisLayerOverlayList.begin();
for ( ; overlayIt != thisLayerOverlayList.end(); ++overlayIt )
{
if (( *overlayIt )->displayFlag() )
{
( *overlayIt )->createOverlayObjects( mRenderContext );
allOverlayList.push_back( *overlayIt );
}
}
overlayManager->addLayer( vl, thisLayerOverlayList );
}
}
// Force render of layers that are being edited
// or if there's a labeling engine that needs the layer to register features
if ( ml->type() == QgsMapLayer::VectorLayer )
{
QgsVectorLayer* vl = qobject_cast<QgsVectorLayer *>( ml );
if ( vl->isEditable() ||
( mRenderContext.labelingEngine() && mRenderContext.labelingEngine()->willUseLayer( vl ) ) )
{
ml->setCacheImage( 0 );
}
}
QSettings mySettings;
if ( ! split )//render caching does not yet cater for split extents
{
if ( mySettings.value( "/qgis/enable_render_caching", false ).toBool() )
{
if ( !mySameAsLastFlag || ml->cacheImage() == 0 )
{
QgsDebugMsg( "\n\n\nCaching enabled but layer redraw forced by extent change or empty cache\n\n\n" );
QImage * mypImage = new QImage( mRenderContext.painter()->device()->width(),
mRenderContext.painter()->device()->height(), QImage::Format_ARGB32 );
mypImage->fill( 0 );
ml->setCacheImage( mypImage ); //no need to delete the old one, maplayer does it for you
QPainter * mypPainter = new QPainter( ml->cacheImage() );
// Changed to enable anti aliasing by default in QGIS 1.7
if ( mySettings.value( "/qgis/enable_anti_aliasing", true ).toBool() )
{
mypPainter->setRenderHint( QPainter::Antialiasing );
}
mRenderContext.setPainter( mypPainter );
}
else if ( mySameAsLastFlag )
{
//draw from cached image
QgsDebugMsg( "\n\n\nCaching enabled --- drawing layer from cached image\n\n\n" );
mypContextPainter->drawImage( 0, 0, *( ml->cacheImage() ) );
disconnect( ml, SIGNAL( drawingProgress( int, int ) ), this, SLOT( onDrawingProgress( int, int ) ) );
//short circuit as there is nothing else to do...
continue;
}
}
}
if ( scaleRaster )
{
bk_mapToPixel = mRenderContext.mapToPixel();
rasterMapToPixel = mRenderContext.mapToPixel();
rasterMapToPixel.setMapUnitsPerPixel( mRenderContext.mapToPixel().mapUnitsPerPixel() / rasterScaleFactor );
rasterMapToPixel.setYMaximum( mSize.height() * rasterScaleFactor );
mRenderContext.setMapToPixel( rasterMapToPixel );
mRenderContext.painter()->save();
mRenderContext.painter()->scale( 1.0 / rasterScaleFactor, 1.0 / rasterScaleFactor );
}
if ( !ml->draw( mRenderContext ) )
{
emit drawError( ml );
}
else
{
QgsDebugMsg( "Layer rendered without issues" );
}
if ( split )
{
mRenderContext.setExtent( r2 );
if ( !ml->draw( mRenderContext ) )
{
emit drawError( ml );
}
}
if ( scaleRaster )
{
mRenderContext.setMapToPixel( bk_mapToPixel );
mRenderContext.painter()->restore();
}
if ( mySettings.value( "/qgis/enable_render_caching", false ).toBool() )
{
if ( !split )
{
// composite the cached image into our view and then clean up from caching
// by reinstating the painter as it was swapped out for caching renders
delete mRenderContext.painter();
mRenderContext.setPainter( mypContextPainter );
//draw from cached image that we created further up
mypContextPainter->drawImage( 0, 0, *( ml->cacheImage() ) );
}
}
disconnect( ml, SIGNAL( drawingProgress( int, int ) ), this, SLOT( onDrawingProgress( int, int ) ) );
}
else // layer not visible due to scale
{
void QgsProjectParser::addLayers( QDomDocument &doc,
QDomElement &parentElem,
const QDomElement &legendElem,
const QMap<QString, QgsMapLayer *> &layerMap,
const QStringList &nonIdentifiableLayers ) const
{
QDomNodeList legendChildren = legendElem.childNodes();
for ( int i = 0; i < legendChildren.size(); ++i )
{
QDomElement currentChildElem = legendChildren.at( i ).toElement();
QDomElement layerElem = doc.createElement( "Layer" );
if ( currentChildElem.tagName() == "legendgroup" )
{
layerElem.setAttribute( "queryable", "1" );
QString name = currentChildElem.attribute( "name" );
QDomElement nameElem = doc.createElement( "Name" );
QDomText nameText = doc.createTextNode( name );
nameElem.appendChild( nameText );
layerElem.appendChild( nameElem );
QDomElement titleElem = doc.createElement( "Title" );
QDomText titleText = doc.createTextNode( name );
titleElem.appendChild( titleText );
layerElem.appendChild( titleElem );
if ( currentChildElem.attribute( "embedded" ) == "1" )
{
//add layers from other project files and embed into this group
QString project = convertToAbsolutePath( currentChildElem.attribute( "project" ) );
QgsDebugMsg( QString( "Project path: %1" ).arg( project ) );
QString embeddedGroupName = currentChildElem.attribute( "name" );
QgsProjectParser* p = dynamic_cast<QgsProjectParser*>( QgsConfigCache::instance()->searchConfiguration( project ) );
if ( p )
{
QStringList pIdDisabled = p->identifyDisabledLayers();
QDomElement embeddedGroupElem;
QList<QDomElement> pLegendElems = p->legendGroupElements();
QList<QDomElement>::const_iterator pLegendIt = pLegendElems.constBegin();
for ( ; pLegendIt != pLegendElems.constEnd(); ++pLegendIt )
{
if ( pLegendIt->attribute( "name" ) == embeddedGroupName )
{
embeddedGroupElem = *pLegendIt;
break;
}
}
QList<QDomElement> pLayerElems = p->projectLayerElements();
QMap<QString, QgsMapLayer *> pLayerMap;
QList<QDomElement>::const_iterator pLayerIt = pLayerElems.constBegin();
for ( ; pLayerIt != pLayerElems.constEnd(); ++pLayerIt )
{
pLayerMap.insert( layerId( *pLayerIt ), p->createLayerFromElement( *pLayerIt ) );
}
p->addLayers( doc, layerElem, embeddedGroupElem, pLayerMap, pIdDisabled );
}
}
else //normal (not embedded) legend group
{
addLayers( doc, layerElem, currentChildElem, layerMap, nonIdentifiableLayers );
}
// combine bounding boxes of children (groups/layers)
combineExtentAndCrsOfGroupChildren( layerElem, doc );
}
else if ( currentChildElem.tagName() == "legendlayer" )
{
QString id = layerIdFromLegendLayer( currentChildElem );
if ( !layerMap.contains( id ) )
{
QgsDebugMsg( QString( "layer %1 not found in map - layer cache to small?" ).arg( id ) );
continue;
}
QgsMapLayer *currentLayer = layerMap[ id ];
if ( !currentLayer )
{
QgsDebugMsg( QString( "layer %1 not found" ).arg( id ) );
continue;
}
if ( nonIdentifiableLayers.contains( currentLayer->id() ) )
{
layerElem.setAttribute( "queryable", "0" );
}
else
{
layerElem.setAttribute( "queryable", "1" );
}
QDomElement nameElem = doc.createElement( "Name" );
//We use the layer name even though it might not be unique.
//Because the id sometimes contains user/pw information and the name is more descriptive
QDomText nameText = doc.createTextNode( currentLayer->name() );
nameElem.appendChild( nameText );
layerElem.appendChild( nameElem );
QDomElement titleElem = doc.createElement( "Title" );
QDomText titleText = doc.createTextNode( currentLayer->name() );
titleElem.appendChild( titleText );
layerElem.appendChild( titleElem );
//CRS
QStringList crsList = createCRSListForLayer( currentLayer );
appendCRSElementsToLayer( layerElem, doc, crsList );
//Ex_GeographicBoundingBox
appendLayerBoundingBoxes( layerElem, doc, currentLayer->extent(), currentLayer->crs() );
//only one default style in project file mode
QDomElement styleElem = doc.createElement( "Style" );
QDomElement styleNameElem = doc.createElement( "Name" );
QDomText styleNameText = doc.createTextNode( "default" );
styleNameElem.appendChild( styleNameText );
QDomElement styleTitleElem = doc.createElement( "Title" );
QDomText styleTitleText = doc.createTextNode( "default" );
styleTitleElem.appendChild( styleTitleText );
styleElem.appendChild( styleNameElem );
styleElem.appendChild( styleTitleElem );
layerElem.appendChild( styleElem );
}
else
{
QgsDebugMsg( "unexpected child element" );
continue;
}
parentElem.appendChild( layerElem );
}
}
QList< layerDef > getWmtsLayerList( QgsServerInterface *serverIface, const QgsProject *project )
{
QList< layerDef > wmtsLayers;
#ifdef HAVE_SERVER_PYTHON_PLUGINS
QgsAccessControl *accessControl = serverIface->accessControls();
#else
( void )serverIface;
#endif
// WMTS Project configuration
bool wmtsProject = project->readBoolEntry( QStringLiteral( "WMTSLayers" ), QStringLiteral( "Project" ) );
// Root Layer name
QString rootLayerName = QgsServerProjectUtils::wmsRootName( *project );
if ( rootLayerName.isEmpty() && !project->title().isEmpty() )
{
rootLayerName = project->title();
}
if ( wmtsProject && !rootLayerName.isEmpty() )
{
layerDef pLayer;
pLayer.id = rootLayerName;
if ( !project->title().isEmpty() )
{
pLayer.title = project->title();
pLayer.abstract = project->title();
}
//transform the project native CRS into WGS84
QgsRectangle projRect = QgsServerProjectUtils::wmsExtent( *project );
QgsCoordinateReferenceSystem projCrs = project->crs();
QgsCoordinateTransform exGeoTransform( projCrs, wgs84, project );
try
{
pLayer.wgs84BoundingRect = exGeoTransform.transformBoundingBox( projRect );
}
catch ( const QgsCsException & )
{
pLayer.wgs84BoundingRect = QgsRectangle( -180, -90, 180, 90 );
}
// Formats
bool wmtsPngProject = project->readBoolEntry( QStringLiteral( "WMTSPngLayers" ), QStringLiteral( "Project" ) );
if ( wmtsPngProject )
pLayer.formats << QStringLiteral( "image/png" );
bool wmtsJpegProject = project->readBoolEntry( QStringLiteral( "WMTSJpegLayers" ), QStringLiteral( "Project" ) );
if ( wmtsJpegProject )
pLayer.formats << QStringLiteral( "image/jpeg" );
// Project is not queryable in WMS
//pLayer.queryable = ( nonIdentifiableLayers.count() != project->count() );
pLayer.queryable = false;
wmtsLayers.append( pLayer );
}
QStringList wmtsGroupNameList = project->readListEntry( QStringLiteral( "WMTSLayers" ), QStringLiteral( "Group" ) );
if ( !wmtsGroupNameList.isEmpty() )
{
QgsLayerTreeGroup *treeRoot = project->layerTreeRoot();
QStringList wmtsPngGroupNameList = project->readListEntry( QStringLiteral( "WMTSPngLayers" ), QStringLiteral( "Group" ) );
QStringList wmtsJpegGroupNameList = project->readListEntry( QStringLiteral( "WMTSJpegLayers" ), QStringLiteral( "Group" ) );
for ( const QString &gName : wmtsGroupNameList )
{
QgsLayerTreeGroup *treeGroup = treeRoot->findGroup( gName );
if ( !treeGroup )
{
continue;
}
layerDef pLayer;
pLayer.id = treeGroup->customProperty( QStringLiteral( "wmsShortName" ) ).toString();
if ( pLayer.id.isEmpty() )
pLayer.id = gName;
pLayer.title = treeGroup->customProperty( QStringLiteral( "wmsTitle" ) ).toString();
if ( pLayer.title.isEmpty() )
pLayer.title = gName;
pLayer.abstract = treeGroup->customProperty( QStringLiteral( "wmsAbstract" ) ).toString();
QgsRectangle wgs84BoundingRect;
bool queryable = false;
double maxScale = 0.0;
double minScale = 0.0;
for ( QgsLayerTreeLayer *layer : treeGroup->findLayers() )
{
QgsMapLayer *l = layer->layer();
if ( !l )
{
continue;
}
//transform the layer native CRS into WGS84
QgsCoordinateReferenceSystem layerCrs = l->crs();
QgsCoordinateTransform exGeoTransform( layerCrs, wgs84, project );
try
{
wgs84BoundingRect.combineExtentWith( exGeoTransform.transformBoundingBox( l->extent() ) );
}
catch ( const QgsCsException & )
{
wgs84BoundingRect.combineExtentWith( QgsRectangle( -180, -90, 180, 90 ) );
}
if ( !queryable && l->flags().testFlag( QgsMapLayer::Identifiable ) )
{
queryable = true;
}
if ( l->hasScaleBasedVisibility() )
{
double lMaxScale = l->maximumScale();
if ( lMaxScale > 0.0 && lMaxScale > maxScale )
{
maxScale = lMaxScale;
}
double lMinScale = l->minimumScale();
if ( lMinScale > 0.0 && ( minScale == 0.0 || lMinScale < minScale ) )
{
minScale = lMinScale;
}
}
}
pLayer.wgs84BoundingRect = wgs84BoundingRect;
pLayer.queryable = queryable;
pLayer.maxScale = maxScale;
pLayer.minScale = minScale;
// Formats
if ( wmtsPngGroupNameList.contains( gName ) )
pLayer.formats << QStringLiteral( "image/png" );
if ( wmtsJpegGroupNameList.contains( gName ) )
pLayer.formats << QStringLiteral( "image/jpeg" );
wmtsLayers.append( pLayer );
}
}
QStringList wmtsLayerIdList = project->readListEntry( QStringLiteral( "WMTSLayers" ), QStringLiteral( "Layer" ) );
QStringList wmtsPngLayerIdList = project->readListEntry( QStringLiteral( "WMTSPngLayers" ), QStringLiteral( "Layer" ) );
QStringList wmtsJpegLayerIdList = project->readListEntry( QStringLiteral( "WMTSJpegLayers" ), QStringLiteral( "Layer" ) );
for ( const QString &lId : wmtsLayerIdList )
{
QgsMapLayer *l = project->mapLayer( lId );
if ( !l )
{
continue;
}
#ifdef HAVE_SERVER_PYTHON_PLUGINS
if ( !accessControl->layerReadPermission( l ) )
{
continue;
}
#endif
layerDef pLayer;
pLayer.id = l->name();
if ( !l->shortName().isEmpty() )
pLayer.id = l->shortName();
pLayer.id = pLayer.id.replace( ' ', '_' );
pLayer.title = l->title();
pLayer.abstract = l->abstract();
//transform the layer native CRS into WGS84
QgsCoordinateReferenceSystem layerCrs = l->crs();
QgsCoordinateTransform exGeoTransform( layerCrs, wgs84, project );
try
{
pLayer.wgs84BoundingRect = exGeoTransform.transformBoundingBox( l->extent() );
}
catch ( const QgsCsException & )
{
pLayer.wgs84BoundingRect = QgsRectangle( -180, -90, 180, 90 );
}
// Formats
if ( wmtsPngLayerIdList.contains( lId ) )
pLayer.formats << QStringLiteral( "image/png" );
if ( wmtsJpegLayerIdList.contains( lId ) )
pLayer.formats << QStringLiteral( "image/jpeg" );
pLayer.queryable = ( l->flags().testFlag( QgsMapLayer::Identifiable ) );
if ( l->hasScaleBasedVisibility() )
{
pLayer.maxScale = l->maximumScale();
pLayer.minScale = l->minimumScale();
}
else
{
pLayer.maxScale = 0.0;
pLayer.minScale = 0.0;
}
wmtsLayers.append( pLayer );
}
return wmtsLayers;
}
void QgsSLDConfigParser::layersAndStylesCapabilities( QDomElement& parentElement, QDomDocument& doc, const QString& version, bool fullProjectSettings ) const
{
Q_UNUSED( version );
Q_UNUSED( fullProjectSettings );
//iterate over all <UserLayer> nodes
if ( mXMLDoc )
{
QDomNode sldNode = mXMLDoc->documentElement();
if ( !sldNode.isNull() )
{
//create wgs84 to reproject the layer bounding boxes
//QgsCoordinateReferenceSystem wgs84;
//wgs84.createFromEpsg(4326);
QDomNodeList layerNodeList = sldNode.toElement().elementsByTagName( QStringLiteral( "UserLayer" ) );
for ( int i = 0; i < layerNodeList.size(); ++i )
{
QDomElement layerElement = doc.createElement( QStringLiteral( "Layer" ) );
layerElement.setAttribute( QStringLiteral( "queryable" ), QStringLiteral( "1" ) ); //support GetFeatureInfo for all layers
parentElement.appendChild( layerElement );
//add name
QDomNodeList nameList = layerNodeList.item( i ).toElement().elementsByTagName( QStringLiteral( "Name" ) );
if ( !nameList.isEmpty() )
{
//layer name
QDomElement layerNameElement = doc.createElement( QStringLiteral( "Name" ) );
QDomText layerNameText = doc.createTextNode( nameList.item( 0 ).toElement().text() );
layerNameElement.appendChild( layerNameText );
layerElement.appendChild( layerNameElement );
}
//add title
QDomNodeList titleList = layerNodeList.item( i ).toElement().elementsByTagName( QStringLiteral( "Title" ) );
if ( !titleList.isEmpty() )
{
QDomElement layerTitleElement = doc.createElement( QStringLiteral( "Title" ) );
QDomText layerTitleText = doc.createTextNode( titleList.item( 0 ).toElement().text() );
layerTitleElement.appendChild( layerTitleText );
layerElement.appendChild( layerTitleElement );
}
//add abstract
QDomNodeList abstractList = layerNodeList.item( i ).toElement().elementsByTagName( QStringLiteral( "Abstract" ) );
if ( !abstractList.isEmpty() )
{
QDomElement layerAbstractElement = doc.createElement( QStringLiteral( "Abstract" ) );
QDomText layerAbstractText = doc.createTextNode( abstractList.item( 0 ).toElement().text() );
layerAbstractElement.appendChild( layerAbstractText );
layerElement.appendChild( layerAbstractElement );
}
//get QgsMapLayer object to add Ex_GeographicalBoundingBox, Bounding Box
QList<QgsMapLayer*> layerList = mapLayerFromStyle( nameList.item( 0 ).toElement().text(), QLatin1String( "" ) );
if ( layerList.size() < 1 )//error while generating the layer
{
QgsDebugMsg( "Error, no maplayer in layer list" );
continue;
}
//get only the first layer since we don't want to have the other ones in the capabilities document
QgsMapLayer* theMapLayer = layerList.at( 0 );
if ( !theMapLayer )//error while generating the layer
{
QgsDebugMsg( "Error, QgsMapLayer object is 0" );
continue;
}
//append geographic bbox and the CRS elements
QStringList crsNumbers = QgsConfigParserUtils::createCrsListForLayer( theMapLayer );
QStringList crsRestriction; //no crs restrictions in SLD parser
QgsConfigParserUtils::appendCrsElementsToLayer( layerElement, doc, crsNumbers, crsRestriction );
QgsConfigParserUtils::appendLayerBoundingBoxes( layerElement, doc, theMapLayer->extent(), theMapLayer->crs(), crsNumbers, crsRestriction );
//iterate over all <UserStyle> nodes within a user layer
QDomNodeList userStyleList = layerNodeList.item( i ).toElement().elementsByTagName( QStringLiteral( "UserStyle" ) );
for ( int j = 0; j < userStyleList.size(); ++j )
{
QDomElement styleElement = doc.createElement( QStringLiteral( "Style" ) );
layerElement.appendChild( styleElement );
//Name
QDomNodeList nameList = userStyleList.item( j ).toElement().elementsByTagName( QStringLiteral( "Name" ) );
if ( !nameList.isEmpty() )
{
QDomElement styleNameElement = doc.createElement( QStringLiteral( "Name" ) );
QDomText styleNameText = doc.createTextNode( nameList.item( 0 ).toElement().text() );
styleNameElement.appendChild( styleNameText );
styleElement.appendChild( styleNameElement );
QDomElement styleTitleElement = doc.createElement( QStringLiteral( "Title" ) );
QDomText styleTitleText = doc.createTextNode( nameList.item( 0 ).toElement().text() );
styleTitleElement.appendChild( styleTitleText );
styleElement.appendChild( styleTitleElement );
}
//Title
QDomNodeList titleList = userStyleList.item( j ).toElement().elementsByTagName( QStringLiteral( "Title" ) );
if ( !titleList.isEmpty() )
{
QDomElement styleTitleElement = doc.createElement( QStringLiteral( "Title" ) );
QDomText styleTitleText = doc.createTextNode( titleList.item( 0 ).toElement().text() );
styleTitleElement.appendChild( styleTitleText );
styleElement.appendChild( styleTitleElement );
}
//Abstract
QDomNodeList abstractList = userStyleList.item( j ).toElement().elementsByTagName( QStringLiteral( "Abstract" ) );
if ( !abstractList.isEmpty() )
{
QDomElement styleAbstractElement = doc.createElement( QStringLiteral( "Abstract" ) );
QDomText styleAbstractText = doc.createTextNode( abstractList.item( 0 ).toElement().text() );
styleAbstractElement.appendChild( styleAbstractText );
styleElement.appendChild( styleAbstractElement );
}
}
}
}
}
}
