/
qgsprojectparser.cpp
2882 lines (2554 loc) · 88.7 KB
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qgsprojectparser.cpp
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/***************************************************************************
qgsprojectparser.cpp
--------------------
begin : May 27, 2010
copyright : (C) 2010 by Marco Hugentobler
email : marco dot hugentobler at sourcepole dot ch
***************************************************************************/
/***************************************************************************
* *
* 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. *
* *
***************************************************************************/
#include "qgsprojectparser.h"
#include "qgsconfigcache.h"
#include "qgscrscache.h"
#include "qgsdatasourceuri.h"
#include "qgsmslayercache.h"
#include "qgslogger.h"
#include "qgsmapserviceexception.h"
#include "qgsrasterlayer.h"
#include "qgsvectorlayer.h"
#include "qgsvectordataprovider.h"
#include "qgscomposition.h"
#include "qgscomposerarrow.h"
#include "qgscomposerattributetable.h"
#include "qgscomposerlabel.h"
#include "qgscomposerlegend.h"
#include "qgscomposermap.h"
#include "qgscomposerpicture.h"
#include "qgscomposerscalebar.h"
#include "qgscomposershape.h"
#include "QFileInfo"
#include <QSvgRenderer>
#include <QTextDocument>
#include "QTextStream"
#include <QUrl>
QgsProjectParser::QgsProjectParser( QDomDocument* xmlDoc, const QString& filePath ): QgsConfigParser(), mXMLDoc( xmlDoc ), mProjectPath( filePath )
{
mOutputUnits = QgsMapRenderer::Millimeters;
setLegendParametersFromProject();
setSelectionColor();
setMaxWidthHeight();
//accelerate the search for layers, groups and the creation of annotation items
if ( mXMLDoc )
{
QDomNodeList layerNodeList = mXMLDoc->elementsByTagName( "maplayer" );
QDomElement currentElement;
int nNodes = layerNodeList.size();
for ( int i = 0; i < nNodes; ++i )
{
currentElement = layerNodeList.at( i ).toElement();
mProjectLayerElements.push_back( currentElement );
mProjectLayerElementsByName.insert( layerName( currentElement ), currentElement );
mProjectLayerElementsById.insert( layerId( currentElement ), currentElement );
}
QDomElement legendElement = mXMLDoc->documentElement().firstChildElement( "legend" );
if ( !legendElement.isNull() )
{
QDomNodeList groupNodeList = legendElement.elementsByTagName( "legendgroup" );
for ( int i = 0; i < groupNodeList.size(); ++i )
{
mLegendGroupElements.push_back( groupNodeList.at( i ).toElement() );
}
}
mRestrictedLayers = restrictedLayers();
createTextAnnotationItems();
createSvgAnnotationItems();
}
}
QgsProjectParser::QgsProjectParser(): mXMLDoc( 0 )
{
}
QgsProjectParser::~QgsProjectParser()
{
delete mXMLDoc;
cleanupTextAnnotationItems();
cleanupSvgAnnotationItems();
}
int QgsProjectParser::numberOfLayers() const
{
return mProjectLayerElements.size();
}
void QgsProjectParser::layersAndStylesCapabilities( QDomElement& parentElement, QDomDocument& doc, const QString& version, bool fullProjectSettings ) const
{
QStringList nonIdentifiableLayers = identifyDisabledLayers();
if ( mProjectLayerElements.size() < 1 )
{
return;
}
if ( fullProjectSettings )
{
addDrawingOrder( parentElement, doc );
}
QMap<QString, QgsMapLayer *> layerMap;
projectLayerMap( layerMap );
//According to the WMS spec, there can be only one toplevel layer.
//So we create an artificial one here to be in accordance with the schema
QString projTitle = projectTitle();
QDomElement layerParentElem = doc.createElement( "Layer" );
layerParentElem.setAttribute( "queryable", "1" );
QDomElement layerParentNameElem = doc.createElement( "Name" );
QDomText layerParentNameText = doc.createTextNode( projTitle );
layerParentNameElem.appendChild( layerParentNameText );
layerParentElem.appendChild( layerParentNameElem );
QDomElement layerParentTitleElem = doc.createElement( "Title" );
QDomText layerParentTitleText = doc.createTextNode( projTitle );
layerParentTitleElem.appendChild( layerParentTitleText );
layerParentElem.appendChild( layerParentTitleElem );
QDomElement legendElem = mXMLDoc->documentElement().firstChildElement( "legend" );
addLayers( doc, layerParentElem, legendElem, layerMap, nonIdentifiableLayers, version, fullProjectSettings );
parentElement.appendChild( layerParentElem );
combineExtentAndCrsOfGroupChildren( layerParentElem, doc );
}
void QgsProjectParser::featureTypeList( QDomElement& parentElement, QDomDocument& doc ) const
{
QStringList wfsLayersId = wfsLayers();
QStringList wfstUpdateLayersId = wfstUpdateLayers();
QStringList wfstInsertLayersId = wfstInsertLayers();
QStringList wfstDeleteLayersId = wfstDeleteLayers();
if ( mProjectLayerElements.size() < 1 )
{
return;
}
QMap<QString, QgsMapLayer *> layerMap;
foreach ( const QDomElement &elem, mProjectLayerElements )
{
QString type = elem.attribute( "type" );
if ( type == "vector" )
{
//QgsMapLayer *layer = createLayerFromElement( *layerIt );
QgsMapLayer *layer = createLayerFromElement( elem );
if ( layer && wfsLayersId.contains( layer->id() ) )
{
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
QDomText nameText = doc.createTextNode( layer->name() );
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 );
//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 );
parentElement.appendChild( layerElem );
}
}
}
return;
}
void QgsProjectParser::describeFeatureType( const QString& aTypeName, QDomElement& parentElement, QDomDocument& doc ) const
{
if ( mProjectLayerElements.size() < 1 )
{
return;
}
QStringList wfsLayersId = wfsLayers();
QStringList typeNameList;
if ( aTypeName != "" )
{
QStringList typeNameSplit = aTypeName.split( "," );
foreach ( const QString &str, typeNameSplit )
{
if ( str.contains( ":" ) )
typeNameList << str.section( ":", 1, 1 );
else
typeNameList << str;
}
}
foreach ( const QDomElement &elem, mProjectLayerElements )
{
QString type = elem.attribute( "type" );
if ( type == "vector" )
{
QgsMapLayer *mLayer = createLayerFromElement( elem );
QgsVectorLayer* layer = dynamic_cast<QgsVectorLayer*>( mLayer );
QString typeName = layer->name();
typeName = typeName.replace( QString( " " ), QString( "_" ) );
if ( layer && wfsLayersId.contains( layer->id() ) && ( aTypeName == "" || typeNameList.contains( typeName ) ) )
{
//do a select with searchRect and go through all the features
QgsVectorDataProvider* provider = layer->dataProvider();
if ( !provider )
{
continue;
}
//hidden attributes for this layer
const QSet<QString>& layerExcludedAttributes = layer->excludeAttributesWFS();
//xsd:element
QDomElement elementElem = doc.createElement( "element"/*xsd:element*/ );
elementElem.setAttribute( "name", typeName );
elementElem.setAttribute( "type", "qgs:" + typeName + "Type" );
elementElem.setAttribute( "substitutionGroup", "gml:_Feature" );
parentElement.appendChild( elementElem );
//xsd:complexType
QDomElement complexTypeElem = doc.createElement( "complexType"/*xsd:complexType*/ );
complexTypeElem.setAttribute( "name", typeName + "Type" );
parentElement.appendChild( complexTypeElem );
//xsd:complexType
QDomElement complexContentElem = doc.createElement( "complexContent"/*xsd:complexContent*/ );
complexTypeElem.appendChild( complexContentElem );
//xsd:extension
QDomElement extensionElem = doc.createElement( "extension"/*xsd:extension*/ );
extensionElem.setAttribute( "base", "gml:AbstractFeatureType" );
complexContentElem.appendChild( extensionElem );
//xsd:sequence
QDomElement sequenceElem = doc.createElement( "sequence"/*xsd:sequence*/ );
extensionElem.appendChild( sequenceElem );
//xsd:element
QDomElement geomElem = doc.createElement( "element"/*xsd:element*/ );
geomElem.setAttribute( "name", "geometry" );
QGis::WkbType wkbType = layer->wkbType();
if ( wkbType != QGis::WKBNoGeometry )
{
switch ( wkbType )
{
case QGis::WKBPoint25D:
case QGis::WKBPoint:
geomElem.setAttribute( "type", "gml:PointPropertyType" );
break;
case QGis::WKBLineString25D:
case QGis::WKBLineString:
geomElem.setAttribute( "type", "gml:LineStringPropertyType" );
break;
case QGis::WKBPolygon25D:
case QGis::WKBPolygon:
geomElem.setAttribute( "type", "gml:PolygonPropertyType" );
break;
case QGis::WKBMultiPoint25D:
case QGis::WKBMultiPoint:
geomElem.setAttribute( "type", "gml:MultiPointPropertyType" );
break;
case QGis::WKBMultiLineString25D:
case QGis::WKBMultiLineString:
geomElem.setAttribute( "type", "gml:MultiLineStringPropertyType" );
break;
case QGis::WKBMultiPolygon25D:
case QGis::WKBMultiPolygon:
geomElem.setAttribute( "type", "gml:MultiPolygonPropertyType" );
break;
default:
geomElem.setAttribute( "type", "gml:GeometryPropertyType" );
break;
}
geomElem.setAttribute( "minOccurs", "0" );
geomElem.setAttribute( "maxOccurs", "1" );
sequenceElem.appendChild( geomElem );
}
const QgsFields& fields = provider->fields();
for ( int idx = 0; idx < fields.count(); ++idx )
{
QString attributeName = fields[idx].name();
//skip attribute if excluded from WFS publication
if ( layerExcludedAttributes.contains( attributeName ) )
{
continue;
}
//xsd:element
QDomElement geomElem = doc.createElement( "element"/*xsd:element*/ );
geomElem.setAttribute( "name", attributeName );
QVariant::Type attributeType = fields[idx].type();
if ( attributeType == QVariant::Int )
geomElem.setAttribute( "type", "integer" );
else if ( attributeType == QVariant::Double )
geomElem.setAttribute( "type", "double" );
else
geomElem.setAttribute( "type", "string" );
sequenceElem.appendChild( geomElem );
QString alias = layer->attributeAlias( idx );
if ( !alias.isEmpty() )
{
geomElem.setAttribute( "alias", alias );
}
}
}
}
}
return;
}
QList<QgsMapLayer*> QgsProjectParser::mapLayerFromTypeName( const QString& tName, bool useCache ) const
{
QList<QgsMapLayer*> layerList;
if ( mProjectLayerElements.size() < 1 )
{
return layerList;
}
QStringList wfsLayersId = wfsLayers();
foreach ( const QDomElement &elem, mProjectLayerElements )
{
QString type = elem.attribute( "type" );
if ( type == "vector" )
{
QgsMapLayer *mLayer = createLayerFromElement( elem, useCache );
QgsVectorLayer* layer = dynamic_cast<QgsVectorLayer*>( mLayer );
QString typeName = layer->name();
typeName = typeName.replace( QString( " " ), QString( "_" ) );
if ( tName == typeName )
{
layerList.push_back( mLayer );
return layerList;
}
}
}
return layerList;
}
void QgsProjectParser::addLayers( QDomDocument &doc,
QDomElement &parentElem,
const QDomElement &legendElem,
const QMap<QString, QgsMapLayer *> &layerMap,
const QStringList &nonIdentifiableLayers,
QString version,
bool fullProjectSettings ) 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 ( fullProjectSettings )
{
layerElem.setAttribute( "visible", !( currentChildElem.attribute( "checked" ) == "Qt::Unchecked" ) );
}
if ( currentChildElem.tagName() == "legendgroup" )
{
layerElem.setAttribute( "queryable", "1" );
QString name = currentChildElem.attribute( "name" );
if ( mRestrictedLayers.contains( name ) ) //unpublished group
{
continue;
}
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 ) );
QList<QDomElement> embeddedGroupElements = p->mLegendGroupElements;
if ( p )
{
QStringList pIdDisabled = p->identifyDisabledLayers();
QDomElement embeddedGroupElem;
foreach ( const QDomElement &elem, embeddedGroupElements )
{
if ( elem.attribute( "name" ) == embeddedGroupName )
{
embeddedGroupElem = elem;
break;
}
}
QMap<QString, QgsMapLayer *> pLayerMap;
QList<QDomElement> embeddedProjectLayerElements = p->mProjectLayerElements;
foreach ( const QDomElement &elem, embeddedProjectLayerElements )
{
pLayerMap.insert( layerId( elem ), p->createLayerFromElement( elem ) );
}
p->addLayers( doc, layerElem, embeddedGroupElem, pLayerMap, pIdDisabled, version, fullProjectSettings );
}
}
else //normal (not embedded) legend group
{
addLayers( doc, layerElem, currentChildElem, layerMap, nonIdentifiableLayers, version, fullProjectSettings );
}
// 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 ( mRestrictedLayers.contains( currentLayer->name() ) ) //unpublished layer
{
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" );
QString titleName = currentLayer->title();
if ( titleName.isEmpty() )
{
titleName = currentLayer->name();
}
QDomText titleText = doc.createTextNode( titleName );
titleElem.appendChild( titleText );
layerElem.appendChild( titleElem );
QString abstract = currentLayer->abstract();
if ( !abstract.isEmpty() )
{
QDomElement abstractElem = doc.createElement( "Abstract" );
QDomText abstractText = doc.createTextNode( abstract );
abstractElem.appendChild( abstractText );
layerElem.appendChild( abstractElem );
}
//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 );
//min/max scale denominatormScaleBasedVisibility
if ( currentLayer->hasScaleBasedVisibility() )
{
QString minScaleString = QString::number( currentLayer->minimumScale() );
QString maxScaleString = QString::number( currentLayer->maximumScale() );
if ( version == "1.1.1" )
{
QDomElement scaleHintElem = doc.createElement( "ScaleHint" );
scaleHintElem.setAttribute( "min", minScaleString );
scaleHintElem.setAttribute( "max", maxScaleString );
layerElem.appendChild( scaleHintElem );
}
else
{
QDomElement minScaleElem = doc.createElement( "MinScaleDenominator" );
QDomText minScaleText = doc.createTextNode( minScaleString );
minScaleElem.appendChild( minScaleText );
layerElem.appendChild( minScaleElem );
QDomElement maxScaleElem = doc.createElement( "MaxScaleDenominator" );
QDomText maxScaleText = doc.createTextNode( maxScaleString );
maxScaleElem.appendChild( maxScaleText );
layerElem.appendChild( maxScaleElem );
}
}
if ( fullProjectSettings )
{
addLayerProjectSettings( layerElem, doc, currentLayer );
}
}
else
{
QgsDebugMsg( "unexpected child element" );
continue;
}
parentElem.appendChild( layerElem );
}
}
void QgsProjectParser::addLayerProjectSettings( QDomElement& layerElem, QDomDocument& doc, QgsMapLayer* currentLayer )
{
if ( !currentLayer )
{
return;
}
if ( currentLayer->type() == QgsMapLayer::VectorLayer )
{
QgsVectorLayer* vLayer = static_cast<QgsVectorLayer*>( currentLayer );
const QSet<QString>& excludedAttributes = vLayer->excludeAttributesWMS();
//displayfield
layerElem.setAttribute( "displayField", vLayer->displayField() );
//attributes
QDomElement attributesElem = doc.createElement( "Attributes" );
const QgsFields& layerFields = vLayer->pendingFields();
for ( int idx = 0; idx < layerFields.count(); ++idx )
{
const QgsField& field = layerFields[idx];
if ( excludedAttributes.contains( field.name() ) )
{
continue;
}
QDomElement attributeElem = doc.createElement( "Attribute" );
attributeElem.setAttribute( "name", vLayer->attributeDisplayName( idx ) );
attributeElem.setAttribute( "type", QVariant::typeToName( field.type() ) );
//edit type to text
QgsVectorLayer::EditType typeEnum = vLayer->editType( idx );
attributeElem.setAttribute( "editType", editTypeString( typeEnum ) );
attributeElem.setAttribute( "comment", field.comment() );
attributeElem.setAttribute( "length", field.length() );
attributeElem.setAttribute( "precision", field.precision() );
attributesElem.appendChild( attributeElem );
}
layerElem.appendChild( attributesElem );
}
}
//not very nice, needs to be kept in sync with QgsVectorLayer class...
QString QgsProjectParser::editTypeString( QgsVectorLayer::EditType type )
{
switch ( type )
{
case QgsVectorLayer::LineEdit:
return "LineEdit";
case QgsVectorLayer::UniqueValues:
return "UniqueValues";
case QgsVectorLayer::UniqueValuesEditable:
return "UniqueValuesEditable";
case QgsVectorLayer::ValueMap:
return "ValueMap";
case QgsVectorLayer::Classification:
return "Classification";
case QgsVectorLayer::EditRange:
return "EditRange";
case QgsVectorLayer::SliderRange:
return "SliderRange";
case QgsVectorLayer::CheckBox:
return "CheckBox";
case QgsVectorLayer::FileName:
return "FileName";
case QgsVectorLayer::Enumeration:
return "Enumeration";
case QgsVectorLayer::Immutable:
return "Immutable";
case QgsVectorLayer::Hidden:
return "Hidden";
case QgsVectorLayer::TextEdit:
return "TextEdit";
case QgsVectorLayer::Calendar:
return "Calendar";
case QgsVectorLayer::DialRange:
return "DialRange";
case QgsVectorLayer::ValueRelation:
return "ValueRelation";
case QgsVectorLayer::UuidGenerator:
return "UuidGenerator";
default:
return "Unknown";
}
}
void QgsProjectParser::combineExtentAndCrsOfGroupChildren( QDomElement& groupElem, QDomDocument& doc ) const
{
QgsRectangle combinedBBox;
QSet<QString> combinedCRSSet;
bool firstBBox = true;
bool firstCRSSet = true;
QDomNodeList layerChildren = groupElem.childNodes();
for ( int j = 0; j < layerChildren.size(); ++j )
{
QDomElement childElem = layerChildren.at( j ).toElement();
if ( childElem.tagName() != "Layer" )
continue;
QgsRectangle bbox = layerBoundingBoxInProjectCRS( childElem, doc );
if ( !bbox.isEmpty() )
{
if ( firstBBox )
{
combinedBBox = bbox;
firstBBox = false;
}
else
{
combinedBBox.combineExtentWith( &bbox );
}
}
//combine crs set
QSet<QString> crsSet;
if ( crsSetForLayer( childElem, crsSet ) )
{
if ( firstCRSSet )
{
combinedCRSSet = crsSet;
firstCRSSet = false;
}
else
{
combinedCRSSet.intersect( crsSet );
}
}
}
appendCRSElementsToLayer( groupElem, doc, combinedCRSSet.toList() );
const QgsCoordinateReferenceSystem& groupCRS = projectCRS();
appendLayerBoundingBoxes( groupElem, doc, combinedBBox, groupCRS );
}
QList<QgsMapLayer*> QgsProjectParser::mapLayerFromStyle( const QString& lName, const QString& styleName, bool useCache ) const
{
Q_UNUSED( styleName );
QList<QgsMapLayer*> layerList;
//first check if the layer name refers an unpublished layer / group
if ( mRestrictedLayers.contains( lName ) )
{
return layerList;
}
if ( !mXMLDoc )
{
return layerList;
}
//does lName refer to a leaf layer
QHash< QString, QDomElement >::const_iterator layerElemIt = mProjectLayerElementsByName.find( lName );
if ( layerElemIt != mProjectLayerElementsByName.constEnd() )
{
QgsMapLayer* layer = createLayerFromElement( layerElemIt.value(), useCache );
if ( layer )
{
layerList.push_back( layer );
return layerList;
}
}
//group or project name
QDomElement groupElement;
if ( lName == projectTitle() )
{
groupElement = mXMLDoc->documentElement().firstChildElement( "legend" );
}
else
{
QList<QDomElement>::const_iterator groupIt = mLegendGroupElements.constBegin();
for ( ; groupIt != mLegendGroupElements.constEnd(); ++groupIt )
{
if ( groupIt->attribute( "name" ) == lName )
{
groupElement = *groupIt;
break;
}
}
}
if ( !groupElement.isNull() )
{
//embedded group has no children in this project file
if ( groupElement.attribute( "embedded" ) == "1" )
{
addLayersFromGroup( groupElement, layerList, useCache );
return layerList;
}
//group element found, iterate children and call addLayersFromGroup / addLayerFromLegendLayer for each
QDomNodeList childList = groupElement.childNodes();
for ( uint i = 0; i < childList.length(); ++i )
{
QDomElement childElem = childList.at( i ).toElement();
if ( childElem.tagName() == "legendgroup" )
{
addLayersFromGroup( childElem, layerList, useCache );
}
else if ( childElem.tagName() == "legendlayer" )
{
addLayerFromLegendLayer( childElem, layerList, useCache );
}
}
return layerList;
}
//still not found. Check if it is a single embedded layer (embedded layers are not contained in mProjectLayerElementsByName)
QDomElement legendElement = mXMLDoc->documentElement().firstChildElement( "legend" );
QDomNodeList legendLayerList = legendElement.elementsByTagName( "legendlayer" );
for ( int i = 0; i < legendLayerList.size(); ++i )
{
QDomElement legendLayerElem = legendLayerList.at( i ).toElement();
if ( legendLayerElem.attribute( "name" ) == lName )
{
addLayerFromLegendLayer( legendLayerElem, layerList, useCache );
}
}
//Still not found. Probably it is a layer or a subgroup in an embedded group
//go through all groups
//check if they are embedded
//if yes, request leaf layers and groups from project parser
QList<QDomElement>::const_iterator legendIt = mLegendGroupElements.constBegin();
for ( ; legendIt != mLegendGroupElements.constEnd(); ++legendIt )
{
if ( legendIt->attribute( "embedded" ) == "1" )
{
QString project = convertToAbsolutePath( legendIt->attribute( "project" ) );
QgsProjectParser* p = dynamic_cast<QgsProjectParser*>( QgsConfigCache::instance()->searchConfiguration( project ) );
if ( p )
{
const QHash< QString, QDomElement >& pLayerByName = p->mProjectLayerElementsByName;
QHash< QString, QDomElement >::const_iterator pLayerNameIt = pLayerByName.find( lName );
if ( pLayerNameIt != pLayerByName.constEnd() )
{
layerList.push_back( p->createLayerFromElement( pLayerNameIt.value(), useCache ) );
break;
}
QList<QDomElement>::const_iterator pLegendGroupIt = p->mLegendGroupElements.constBegin();
for ( ; pLegendGroupIt != p->mLegendGroupElements.constEnd(); ++pLegendGroupIt )
{
if ( pLegendGroupIt->attribute( "name" ) == lName )
{
p->addLayersFromGroup( *pLegendGroupIt, layerList, useCache );
break;
}
}
}
}
}
return layerList;
}
void QgsProjectParser::addLayersFromGroup( const QDomElement& legendGroupElem, QList<QgsMapLayer*>& layerList, bool useCache ) const
{
if ( legendGroupElem.attribute( "embedded" ) == "1" ) //embedded group
{
//get project parser
//get group elements from project parser, find the group
//iterate over layers and add them (embedding in embedded groups does not work)
QString groupName = legendGroupElem.attribute( "name" );
QString project = convertToAbsolutePath( legendGroupElem.attribute( "project" ) );
QgsProjectParser* p = dynamic_cast<QgsProjectParser*>( QgsConfigCache::instance()->searchConfiguration( project ) );
if ( !p )
{
return;
}
QList<QDomElement> pLegendGroupElems = p->mLegendGroupElements;
QList<QDomElement>::const_iterator pGroupIt = pLegendGroupElems.constBegin();
for ( ; pGroupIt != pLegendGroupElems.constEnd(); ++pGroupIt )
{
if ( pGroupIt->attribute( "name" ) == groupName )
{
p->addLayersFromGroup( *pGroupIt, layerList, useCache );
return;
}
}
}
else //normal group
{
QDomNodeList groupElemChildren = legendGroupElem.childNodes();
for ( int i = 0; i < groupElemChildren.size(); ++i )
{
QDomElement elem = groupElemChildren.at( i ).toElement();
if ( elem.tagName() == "legendgroup" )
{
addLayersFromGroup( elem, layerList, useCache );
}
else if ( elem.tagName() == "legendlayer" )
{
addLayerFromLegendLayer( elem, layerList, useCache );
}
}
}
}
void QgsProjectParser::addLayerFromLegendLayer( const QDomElement& legendLayerElem, QList<QgsMapLayer*>& layerList, bool useCache ) const
{
//get layer id
//search dom element for <maplayer> element
//call createLayerFromElement()
QString id = legendLayerElem.firstChild().firstChild().toElement().attribute( "layerid" );
QHash< QString, QDomElement >::const_iterator layerIt = mProjectLayerElementsById.find( id );
if ( layerIt != mProjectLayerElementsById.constEnd() )
{
QgsMapLayer* layer = createLayerFromElement( layerIt.value(), useCache );
if ( layer )
{
layerList.append( layer );
}
}
}
int QgsProjectParser::layersAndStyles( QStringList& layers, QStringList& styles ) const
{
layers.clear();
styles.clear();
QList<QDomElement>::const_iterator elemIt = mProjectLayerElements.constBegin();
QString currentLayerName;
for ( ; elemIt != mProjectLayerElements.constEnd(); ++elemIt )
{
currentLayerName = layerName( *elemIt );
if ( !currentLayerName.isNull() )
{
layers << currentLayerName;
styles << "default";
}
}
return 0;
}
QDomDocument QgsProjectParser::getStyle( const QString& styleName, const QString& layerName ) const
{
Q_UNUSED( styleName );
Q_UNUSED( layerName );
return QDomDocument();
}
QgsMapRenderer::OutputUnits QgsProjectParser::outputUnits() const
{
return QgsMapRenderer::Millimeters;
}
QStringList QgsProjectParser::identifyDisabledLayers() const
{
QStringList disabledList;
if ( !mXMLDoc )
{
return disabledList;
}
QDomElement qgisElem = mXMLDoc->documentElement();
if ( qgisElem.isNull() )
{
return disabledList;
}
QDomElement propertiesElem = qgisElem.firstChildElement( "properties" );
if ( propertiesElem.isNull() )
{
return disabledList;
}
QDomElement identifyElem = propertiesElem.firstChildElement( "Identify" );
if ( identifyElem.isNull() )
{
return disabledList;
}
QDomElement disabledLayersElem = identifyElem.firstChildElement( "disabledLayers" );
if ( disabledLayersElem.isNull() )
{
return disabledList;
}
QDomNodeList valueList = disabledLayersElem.elementsByTagName( "value" );
for ( int i = 0; i < valueList.size(); ++i )
{
disabledList << valueList.at( i ).toElement().text();
}
return disabledList;