void QgsVectorLayerProperties::loadRows()
{
QObject::disconnect( tblAttributes, SIGNAL( cellChanged( int, int ) ), this, SLOT( on_tblAttributes_cellChanged( int, int ) ) );
const QgsFieldMap &fields = layer->pendingFields();
tblAttributes->clear();
tblAttributes->setColumnCount( attrColCount );
tblAttributes->setRowCount( fields.size() );
tblAttributes->setHorizontalHeaderItem( attrIdCol, new QTableWidgetItem( tr( "Id" ) ) );
tblAttributes->setHorizontalHeaderItem( attrNameCol, new QTableWidgetItem( tr( "Name" ) ) );
tblAttributes->setHorizontalHeaderItem( attrTypeCol, new QTableWidgetItem( tr( "Type" ) ) );
tblAttributes->setHorizontalHeaderItem( attrLengthCol, new QTableWidgetItem( tr( "Length" ) ) );
tblAttributes->setHorizontalHeaderItem( attrPrecCol, new QTableWidgetItem( tr( "Precision" ) ) );
tblAttributes->setHorizontalHeaderItem( attrCommentCol, new QTableWidgetItem( tr( "Comment" ) ) );
tblAttributes->setHorizontalHeaderItem( attrEditTypeCol, new QTableWidgetItem( tr( "Edit widget" ) ) );
tblAttributes->setHorizontalHeaderItem( attrAliasCol, new QTableWidgetItem( tr( "Alias" ) ) );
tblAttributes->horizontalHeader()->setResizeMode( 1, QHeaderView::Stretch );
tblAttributes->horizontalHeader()->setResizeMode( 7, QHeaderView::Stretch );
tblAttributes->setSelectionBehavior( QAbstractItemView::SelectRows );
tblAttributes->setSelectionMode( QAbstractItemView::ExtendedSelection );
tblAttributes->verticalHeader()->hide();
int row = 0;
for ( QgsFieldMap::const_iterator it = fields.begin(); it != fields.end(); it++, row++ )
setRow( row, it.key(), it.value() );
tblAttributes->resizeColumnsToContents();
QObject::connect( tblAttributes, SIGNAL( cellChanged( int, int ) ), this, SLOT( on_tblAttributes_cellChanged( int, int ) ) );
}
void QgsVectorLayerProperties::loadRows()
{
const QgsFieldMap &fields = layer->pendingFields();
tblAttributes->clear();
tblAttributes->setColumnCount( 8 );
tblAttributes->setRowCount( fields.size() );
tblAttributes->setHorizontalHeaderItem( 0, new QTableWidgetItem( tr( "id" ) ) );
tblAttributes->setHorizontalHeaderItem( 1, new QTableWidgetItem( tr( "name" ) ) );
tblAttributes->setHorizontalHeaderItem( 2, new QTableWidgetItem( tr( "type" ) ) );
tblAttributes->setHorizontalHeaderItem( 3, new QTableWidgetItem( tr( "length" ) ) );
tblAttributes->setHorizontalHeaderItem( 4, new QTableWidgetItem( tr( "precision" ) ) );
tblAttributes->setHorizontalHeaderItem( 5, new QTableWidgetItem( tr( "comment" ) ) );
tblAttributes->setHorizontalHeaderItem( 6, new QTableWidgetItem( tr( "edit widget" ) ) );
tblAttributes->setHorizontalHeaderItem( 7, new QTableWidgetItem( tr( "values" ) ) );
tblAttributes->setSelectionBehavior( QAbstractItemView::SelectRows );
tblAttributes->setSelectionMode( QAbstractItemView::MultiSelection );
int row = 0;
for ( QgsFieldMap::const_iterator it = fields.begin(); it != fields.end(); it++, row++ )
setRow( row, it.key(), it.value() );
tblAttributes->resizeColumnsToContents();
}
bool QgsZonalStatisticsDialog::prefixIsValid( const QString& prefix ) const
{
QgsVectorLayer* vl = polygonLayer();
if ( !vl )
{
return false;
}
QgsVectorDataProvider* dp = vl->dataProvider();
if ( !dp )
{
return false;
}
QgsFieldMap providerFieldMap = dp->fields();
QgsFieldMap::const_iterator it = providerFieldMap.constBegin();
QString currentFieldName;
for ( ; it != providerFieldMap.constEnd(); ++it )
{
currentFieldName = it.value().name();
if ( currentFieldName == ( prefix + "mean" ) || currentFieldName == ( prefix + "sum" ) || currentFieldName == ( prefix + "count" ) )
{
return false;
}
}
return true;
}
void RgLineVectorLayerSettingsWidget::on_mcbLayers_selectItem()
{
mcbDirection->clear();
mcbSpeed->clear();
mcbDirection->insertItem( 0, tr( "Always use default" ) );
mcbSpeed->insertItem( 0, tr( "Always use default" ) );
QgsVectorLayer* vl = selectedLayer();
if ( !vl )
return;
QgsVectorDataProvider* provider = vl->dataProvider();
if ( !provider )
return;
const QgsFieldMap& fields = provider->fields();
QgsFieldMap::const_iterator it;
for ( it = fields.constBegin(); it != fields.constEnd(); ++it )
{
QgsField currentField = it.value();
QVariant currentType = currentField.type();
if ( currentType == QVariant::Int || currentType == QVariant::String )
{
mcbDirection->insertItem( 1, currentField.name() );
}
if ( currentType == QVariant::Int || currentType == QVariant::Double )
{
mcbSpeed->insertItem( 1, currentField.name() );
}
}
} // RgDSettingsDlg::on_mcbLayers_selectItem()
void QgsLabelingGui::populateDataDefinedCombos( QgsPalLayerSettings& s )
{
QList<QComboBox*> comboList;
comboList << mSizeAttributeComboBox;
comboList << mColorAttributeComboBox;
comboList << mBoldAttributeComboBox;
comboList << mItalicAttributeComboBox;
comboList << mUnderlineAttributeComboBox;
comboList << mStrikeoutAttributeComboBox;
comboList << mFontFamilyAttributeComboBox;
comboList << mBufferSizeAttributeComboBox;
comboList << mBufferColorAttributeComboBox;
comboList << mXCoordinateComboBox;
comboList << mYCoordinateComboBox;
comboList << mHorizontalAlignmentComboBox;
comboList << mVerticalAlignmentComboBox;
comboList << mLabelDistanceComboBox;
comboList << mRotationComboBox;
QList<QComboBox*>::iterator comboIt = comboList.begin();
for ( ; comboIt != comboList.end(); ++comboIt )
{
( *comboIt )->addItem( "", QVariant() );
}
const QgsFieldMap& fields = mLayer->dataProvider()->fields();
for ( QgsFieldMap::const_iterator it = fields.constBegin(); it != fields.constEnd(); it++ )
{
for ( comboIt = comboList.begin(); comboIt != comboList.end(); ++comboIt )
{
( *comboIt )->addItem( it.value().name(), it.key() );
}
}
//set current combo boxes to already existing indices
setCurrentComboValue( mSizeAttributeComboBox, s, QgsPalLayerSettings::Size );
setCurrentComboValue( mColorAttributeComboBox, s, QgsPalLayerSettings::Color );
setCurrentComboValue( mBoldAttributeComboBox, s, QgsPalLayerSettings::Bold );
setCurrentComboValue( mItalicAttributeComboBox, s, QgsPalLayerSettings::Italic );
setCurrentComboValue( mUnderlineAttributeComboBox, s, QgsPalLayerSettings::Underline );
setCurrentComboValue( mStrikeoutAttributeComboBox, s, QgsPalLayerSettings::Strikeout );
setCurrentComboValue( mFontFamilyAttributeComboBox, s, QgsPalLayerSettings::Family );
setCurrentComboValue( mBufferSizeAttributeComboBox, s , QgsPalLayerSettings::BufferSize );
setCurrentComboValue( mBufferColorAttributeComboBox, s, QgsPalLayerSettings::BufferColor );
setCurrentComboValue( mXCoordinateComboBox, s, QgsPalLayerSettings::PositionX );
setCurrentComboValue( mYCoordinateComboBox, s, QgsPalLayerSettings::PositionY );
setCurrentComboValue( mHorizontalAlignmentComboBox, s, QgsPalLayerSettings::Hali );
setCurrentComboValue( mVerticalAlignmentComboBox, s, QgsPalLayerSettings::Vali );
setCurrentComboValue( mLabelDistanceComboBox, s, QgsPalLayerSettings::LabelDistance );
setCurrentComboValue( mRotationComboBox, s, QgsPalLayerSettings::Rotation );
}
QgsDelAttrDialog::QgsDelAttrDialog( const QgsVectorLayer* vl ): QDialog()
{
setupUi( this );
if ( vl )
{
listBox2->clear();
const QgsFieldMap layerAttributes = vl->pendingFields();
QgsFieldMap::const_iterator attIt = layerAttributes.constBegin();
for ( ; attIt != layerAttributes.constEnd(); ++attIt )
{
QListWidgetItem* item = new QListWidgetItem( attIt.value().name(), listBox2 );
item->setData( Qt::UserRole, attIt.key() );
}
}
}
void QgsFieldCalculator::populateFields()
{
if ( !mVectorLayer )
return;
const QgsFieldMap fieldMap = mVectorLayer->pendingFields();
QgsFieldMap::const_iterator fieldIt = fieldMap.constBegin();
for ( ; fieldIt != fieldMap.constEnd(); ++fieldIt )
{
QString fieldName = fieldIt.value().name();
//insert into field list and field combo box
mFieldMap.insert( fieldName, fieldIt.key() );
mExistingFieldComboBox->addItem( fieldName );
}
}
QgsVectorFieldSymbolLayerWidget::QgsVectorFieldSymbolLayerWidget( const QgsVectorLayer* vl, QWidget* parent ): QgsSymbolLayerV2Widget( parent, vl ), mLayer( 0 )
{
setupUi( this );
if ( mVectorLayer )
{
const QgsFieldMap& fm = mVectorLayer->pendingFields();
QgsFieldMap::const_iterator fieldIt = fm.constBegin();
mXAttributeComboBox->addItem( "" );
mYAttributeComboBox->addItem( "" );
for ( ; fieldIt != fm.constEnd(); ++fieldIt )
{
QString fieldName = fieldIt.value().name();
mXAttributeComboBox->addItem( fieldName );
mYAttributeComboBox->addItem( fieldName );
}
}
}
QMap<int, QString> QgsComposerAttributeTable::getHeaderLabels() const
{
QMap<int, QString> header;
if ( mVectorLayer )
{
QgsFieldMap vectorFields = mVectorLayer->pendingFields();
QgsFieldMap::const_iterator fieldIt = vectorFields.constBegin();
for ( ; fieldIt != vectorFields.constEnd(); ++fieldIt )
{
if ( mDisplayAttributes.size() > 0 && !mDisplayAttributes.contains( fieldIt.key() ) )
{
continue;
}
header.insert( fieldIt.key(), attributeDisplayName( fieldIt.key(), fieldIt.value().name() ) );
}
}
return header;
}
void QgsFieldCalculator::accept()
{
// Set up QgsDistanceArea each time we (re-)calculate
QgsDistanceArea myDa;
myDa.setSourceCrs( mVectorLayer->crs().srsid() );
myDa.setEllipsoidalMode( QgisApp::instance()->mapCanvas()->mapRenderer()->hasCrsTransformEnabled() );
myDa.setEllipsoid( QgsProject::instance()->readEntry( "Measure", "/Ellipsoid", GEO_NONE ) );
QString calcString = builder->expressionText();
QgsExpression exp( calcString );
if ( !mVectorLayer || !mVectorLayer->isEditable() )
return;
if ( ! exp.prepare( mVectorLayer->pendingFields() ) )
{
QMessageBox::critical( 0, tr( "Evaluation error" ), exp.evalErrorString() );
return;
}
mVectorLayer->beginEditCommand( "Field calculator" );
//update existing field
if ( mUpdateExistingGroupBox->isChecked() || !mNewFieldGroupBox->isEnabled() )
{
QMap<QString, int>::const_iterator fieldIt = mFieldMap.find( mExistingFieldComboBox->currentText() );
if ( fieldIt != mFieldMap.end() )
{
mAttributeId = fieldIt.value();
}
}
else
{
//create new field
QgsField newField( mOutputFieldNameLineEdit->text(),
( QVariant::Type ) mOutputFieldTypeComboBox->itemData( mOutputFieldTypeComboBox->currentIndex(), Qt::UserRole ).toInt(),
mOutputFieldTypeComboBox->itemData( mOutputFieldTypeComboBox->currentIndex(), Qt::UserRole + 1 ).toString(),
mOutputFieldWidthSpinBox->value(),
mOutputFieldPrecisionSpinBox->value() );
if ( !mVectorLayer->addAttribute( newField ) )
{
QMessageBox::critical( 0, tr( "Provider error" ), tr( "Could not add the new field to the provider." ) );
mVectorLayer->destroyEditCommand();
return;
}
//get index of the new field
const QgsFieldMap fieldList = mVectorLayer->pendingFields();
QgsFieldMap::const_iterator it = fieldList.constBegin();
for ( ; it != fieldList.constEnd(); ++it )
{
if ( it.value().name() == mOutputFieldNameLineEdit->text() )
{
mAttributeId = it.key();
break;
}
}
}
if ( mAttributeId == -1 )
{
mVectorLayer->destroyEditCommand();
return;
}
//go through all the features and change the new attribute
QgsFeature feature;
bool calculationSuccess = true;
QString error;
bool onlySelected = mOnlyUpdateSelectedCheckBox->isChecked();
QgsFeatureIds selectedIds = mVectorLayer->selectedFeaturesIds();
// block layerModified signals (that would trigger table update)
mVectorLayer->blockSignals( true );
bool useGeometry = exp.needsGeometry();
int rownum = 1;
mVectorLayer->select( mVectorLayer->pendingAllAttributesList(), QgsRectangle(), useGeometry, false );
while ( mVectorLayer->nextFeature( feature ) )
{
if ( onlySelected )
{
if ( !selectedIds.contains( feature.id() ) )
{
continue;
}
}
exp.setCurrentRowNumber( rownum );
exp.setGeomCalculator( myDa );
QVariant value = exp.evaluate( &feature );
if ( exp.hasEvalError() )
{
calculationSuccess = false;
error = exp.evalErrorString();
break;
}
else
{
mVectorLayer->changeAttributeValue( feature.id(), mAttributeId, value, false );
}
rownum++;
}
// stop blocking layerModified signals and make sure that one layerModified signal is emitted
mVectorLayer->blockSignals( false );
mVectorLayer->setModified( true, false );
if ( !calculationSuccess )
{
QMessageBox::critical( 0, tr( "Error" ), tr( "An error occured while evaluating the calculation string:\n%1" ).arg( error ) );
mVectorLayer->destroyEditCommand();
return;
}
mVectorLayer->endEditCommand();
QDialog::accept();
}
QgsPointDisplacementRendererWidget::QgsPointDisplacementRendererWidget( QgsVectorLayer* layer, QgsStyleV2* style, QgsFeatureRendererV2* renderer ): \
QgsRendererV2Widget( layer, style ), mEmbeddedRendererWidget( 0 )
{
if ( !layer )
{
return;
}
//the renderer only applies to point vector layers
if ( layer->wkbType() != QGis::WKBPoint && layer->wkbType() != QGis::WKBPoint25D )
{
//setup blank dialog
mRenderer = 0;
setupBlankUi( layer->name() );
return;
}
setupUi( this );
if ( renderer && renderer->type() == "pointDisplacement" )
{
mRenderer = dynamic_cast<QgsPointDisplacementRenderer*>( renderer->clone() );
}
else
{
mRenderer = new QgsPointDisplacementRenderer();
}
blockAllSignals( true );
//insert attributes into combo box
if ( layer )
{
const QgsFieldMap layerAttributes = layer->pendingFields();
QgsFieldMap::const_iterator it = layerAttributes.constBegin();
for ( ; it != layerAttributes.constEnd(); ++it )
{
mLabelFieldComboBox->addItem( it.value().name() );
}
mLabelFieldComboBox->addItem( tr( "None" ) );
QString currentLabelAttribute = mRenderer->labelAttributeName();
if ( !currentLabelAttribute.isEmpty() )
{
mLabelFieldComboBox->setCurrentIndex( mLabelFieldComboBox->findText( currentLabelAttribute ) );
}
else
{
mLabelFieldComboBox->setCurrentIndex( mLabelFieldComboBox->findText( tr( "None" ) ) );
}
}
//insert possible renderer types
QStringList rendererList = QgsRendererV2Registry::instance()->renderersList();
QStringList::const_iterator it = rendererList.constBegin();
for ( ; it != rendererList.constEnd(); ++it )
{
if ( *it != "pointDisplacement" )
{
QgsRendererV2AbstractMetadata* m = QgsRendererV2Registry::instance()->rendererMetadata( *it );
mRendererComboBox->addItem( m->icon(), m->visibleName(), *it );
}
}
mCircleWidthSpinBox->setValue( mRenderer->circleWidth() );
mCircleColorButton->setColor( mRenderer->circleColor() );
mLabelColorButton->setColor( mRenderer->labelColor() );
mCircleModificationSpinBox->setValue( mRenderer->circleRadiusAddition() );
mDistanceSpinBox->setValue( mRenderer->tolerance() );
//scale dependent labelling
mMaxScaleDenominatorEdit->setText( QString::number( mRenderer->maxLabelScaleDenominator() ) );
mMaxScaleDenominatorEdit->setValidator( new QDoubleValidator( mMaxScaleDenominatorEdit ) );
if ( mRenderer->maxLabelScaleDenominator() > 0 )
{
mScaleDependentLabelsCheckBox->setCheckState( Qt::Checked );
}
else
{
mScaleDependentLabelsCheckBox->setCheckState( Qt::Unchecked );
mMaxScaleDenominatorEdit->setEnabled( false );
}
blockAllSignals( false );
//set the appropriate renderer dialog
if ( mRenderer && mRenderer->embeddedRenderer() )
{
QString rendererName = mRenderer->embeddedRenderer()->type();
int rendererIndex = mRendererComboBox->findData( rendererName );
if ( rendererIndex != -1 )
{
mRendererComboBox->setCurrentIndex( rendererIndex );
on_mRendererComboBox_currentIndexChanged( rendererIndex );
}
}
updateCenterIcon();
}
QDomDocument QgsWFSServer::describeFeatureType()
{
QgsDebugMsg( "Entering." );
QDomDocument doc;
//xsd:schema
QDomElement schemaElement = doc.createElement( "schema"/*xsd:schema*/ );
schemaElement.setAttribute( "xmlns", "http://www.w3.org/2001/XMLSchema" );
schemaElement.setAttribute( "xmlns:xsd", "http://www.w3.org/2001/XMLSchema" );
schemaElement.setAttribute( "xmlns:ogc", "http://www.opengis.net/ogc" );
schemaElement.setAttribute( "xmlns:gml", "http://www.opengis.net/gml" );
schemaElement.setAttribute( "xmlns:qgs", "http://www.qgis.org/gml" );
schemaElement.setAttribute( "targetNamespace", "http://www.qgis.org/gml" );
doc.appendChild( schemaElement );
//xsd:import
QDomElement importElement = doc.createElement( "import"/*xsd:import*/ );
importElement.setAttribute( "namespace", "http://www.opengis.net/gml" );
importElement.setAttribute( "schemaLocation", "http://schemas.opengis.net/gml/2.1.2/feature.xsd" );
schemaElement.appendChild( importElement );
//read TYPENAME
QString typeName;
QMap<QString, QString>::const_iterator type_name_it = mParameterMap.find( "TYPENAME" );
if ( type_name_it != mParameterMap.end() )
{
typeName = type_name_it.value();
}
else
{
return doc;
}
QStringList wfsLayersId = mConfigParser->wfsLayers();
QMap< QString, QMap< int, QString > > aliasInfo = mConfigParser->layerAliasInfo();
QMap< QString, QSet<QString> > hiddenAttributes = mConfigParser->hiddenAttributes();
QList<QgsMapLayer*> layerList;
QgsMapLayer* currentLayer = 0;
layerList = mConfigParser->mapLayerFromStyle( typeName, "" );
currentLayer = layerList.at( 0 );
QgsVectorLayer* layer = dynamic_cast<QgsVectorLayer*>( currentLayer );
if ( layer && wfsLayersId.contains( layer->id() ) )
{
//is there alias info for this vector layer?
QMap< int, QString > layerAliasInfo;
QMap< QString, QMap< int, QString > >::const_iterator aliasIt = aliasInfo.find( currentLayer->id() );
if ( aliasIt != aliasInfo.constEnd() )
{
layerAliasInfo = aliasIt.value();
}
//hidden attributes for this layer
QSet<QString> layerHiddenAttributes;
QMap< QString, QSet<QString> >::const_iterator hiddenIt = hiddenAttributes.find( currentLayer->id() );
if ( hiddenIt != hiddenAttributes.constEnd() )
{
layerHiddenAttributes = hiddenIt.value();
}
//do a select with searchRect and go through all the features
QgsVectorDataProvider* provider = layer->dataProvider();
if ( !provider )
{
return doc;
}
typeName = typeName.replace( QString( " " ), QString( "_" ) );
//xsd:element
QDomElement elementElem = doc.createElement( "element"/*xsd:element*/ );
elementElem.setAttribute( "name", typeName );
elementElem.setAttribute( "type", "qgs:" + typeName + "Type" );
elementElem.setAttribute( "substitutionGroup", "gml:_Feature" );
schemaElement.appendChild( elementElem );
//xsd:complexType
QDomElement complexTypeElem = doc.createElement( "complexType"/*xsd:complexType*/ );
complexTypeElem.setAttribute( "name", typeName + "Type" );
schemaElement.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" );
geomElem.setAttribute( "type", "gml:GeometryPropertyType" );
geomElem.setAttribute( "minOccurs", "0" );
geomElem.setAttribute( "maxOccurs", "1" );
sequenceElem.appendChild( geomElem );
const QgsFieldMap& fields = provider->fields();
for ( QgsFieldMap::const_iterator it = fields.begin(); it != fields.end(); ++it )
{
QString attributeName = it.value().name();
//skip attribute if it has edit type 'hidden'
if ( layerHiddenAttributes.contains( attributeName ) )
{
continue;
}
//xsd:element
QDomElement geomElem = doc.createElement( "element"/*xsd:element*/ );
geomElem.setAttribute( "name", attributeName );
if ( it.value().type() == 2 )
geomElem.setAttribute( "type", "integer" );
else if ( it.value().type() == 6 )
geomElem.setAttribute( "type", "double" );
else
geomElem.setAttribute( "type", "string" );
sequenceElem.appendChild( geomElem );
//check if the attribute name should be replaced with an alias
QMap<int, QString>::const_iterator aliasIt = layerAliasInfo.find( it.key() );
if ( aliasIt != layerAliasInfo.constEnd() )
{
geomElem.setAttribute( "alias", aliasIt.value() );
}
}
}
return doc;
}
void QgsMergeAttributesDialog::createTableWidgetContents()
{
//get information about attributes from vector layer
if ( !mVectorLayer )
{
return;
}
//combo box row, attributes titles, feature values and current merge results
mTableWidget->setRowCount( mFeatureList.size() + 2 );
//create combo boxes and insert attribute names
const QgsFieldMap& fieldMap = mVectorLayer->pendingFields();
int col = 0;
for ( QgsFieldMap::const_iterator fieldIt = fieldMap.constBegin();
fieldIt != fieldMap.constEnd();
++fieldIt )
{
if ( mVectorLayer->editType( fieldIt.key() ) == QgsVectorLayer::Hidden ||
mVectorLayer->editType( fieldIt.key() ) == QgsVectorLayer::Immutable )
continue;
mTableWidget->setColumnCount( col + 1 );
mTableWidget->setCellWidget( 0, col, createMergeComboBox( fieldIt->type() ) );
QTableWidgetItem *item = new QTableWidgetItem( fieldIt.value().name() );
item->setData( Qt::UserRole, fieldIt.key() );
mTableWidget->setHorizontalHeaderItem( col++, item );
}
//insert the attribute values
QStringList verticalHeaderLabels; //the id column is in the
verticalHeaderLabels << tr( "Id" );
for ( int i = 0; i < mFeatureList.size(); ++i )
{
verticalHeaderLabels << QString::number( mFeatureList[i].id() );
const QgsAttributeMap &attrs = mFeatureList[i].attributeMap();
for ( int j = 0; j < mTableWidget->columnCount(); j++ )
{
int idx = mTableWidget->horizontalHeaderItem( j )->data( Qt::UserRole ).toInt();
QTableWidgetItem* attributeValItem = new QTableWidgetItem( attrs[idx].toString() );
attributeValItem->setFlags( Qt::ItemIsEnabled | Qt::ItemIsSelectable );
mTableWidget->setItem( i + 1, j, attributeValItem );
mTableWidget->setCellWidget( i + 1, j, QgsAttributeEditor::createAttributeEditor( mTableWidget, NULL, mVectorLayer, idx, attrs[idx] ) );
}
}
//merge
verticalHeaderLabels << tr( "Merge" );
mTableWidget->setVerticalHeaderLabels( verticalHeaderLabels );
//insert currently merged values
for ( int i = 0; i < mTableWidget->columnCount(); ++i )
{
refreshMergedValue( i );
}
}
void QgsFieldCalculator::accept()
{
if ( mVectorLayer && mVectorLayer->isEditable() )
{
QString calcString = mExpressionTextEdit->toPlainText();
//create QgsExpression
QgsExpression exp( calcString );
if ( exp.hasParserError() )
{
//expression not valid
QMessageBox::critical( 0, tr( "Syntax error" ), tr( QString( "Invalid expression syntax. The error message of the parser is: '" + exp.parserErrorString() + "'" ).toLocal8Bit().data() ) );
return;
}
if ( ! exp.prepare( mVectorLayer->pendingFields() ) )
{
QMessageBox::critical( 0, tr( "Evaluation error" ), exp.evalErrorString() );
return;
}
mVectorLayer->beginEditCommand( "Field calculator" );
//update existing field
if ( mUpdateExistingFieldCheckBox->checkState() == Qt::Checked )
{
QMap<QString, int>::const_iterator fieldIt = mFieldMap.find( mExistingFieldComboBox->currentText() );
if ( fieldIt != mFieldMap.end() )
{
mAttributeId = fieldIt.value();
}
}
//create new field
else
{
//create new field
QgsField newField( mOutputFieldNameLineEdit->text(),
( QVariant::Type ) mOutputFieldTypeComboBox->itemData( mOutputFieldTypeComboBox->currentIndex(), Qt::UserRole ).toInt(),
mOutputFieldTypeComboBox->itemData( mOutputFieldTypeComboBox->currentIndex(), Qt::UserRole + 1 ).toString(),
mOuputFieldWidthSpinBox->value(),
mOutputFieldPrecisionSpinBox->value() );
if ( !mVectorLayer->addAttribute( newField ) )
{
QMessageBox::critical( 0, tr( "Provider error" ), tr( "Could not add the new field to the provider." ) );
mVectorLayer->destroyEditCommand();
return;
}
//get index of the new field
const QgsFieldMap fieldList = mVectorLayer->pendingFields();
QgsFieldMap::const_iterator it = fieldList.constBegin();
for ( ; it != fieldList.constEnd(); ++it )
{
if ( it.value().name() == mOutputFieldNameLineEdit->text() )
{
mAttributeId = it.key();
break;
}
}
}
if ( mAttributeId == -1 )
{
mVectorLayer->destroyEditCommand();
return;
}
//go through all the features and change the new attribute
QgsFeature feature;
bool calculationSuccess = true;
QString error;
bool onlySelected = ( mOnlyUpdateSelectedCheckBox->checkState() == Qt::Checked );
QgsFeatureIds selectedIds = mVectorLayer->selectedFeaturesIds();
// block layerModified signals (that would trigger table update)
mVectorLayer->blockSignals( true );
bool useGeometry = exp.needsGeometry();
int rownum = 1;
mVectorLayer->select( mVectorLayer->pendingAllAttributesList(), QgsRectangle(), useGeometry, false );
while ( mVectorLayer->nextFeature( feature ) )
{
if ( onlySelected )
{
if ( !selectedIds.contains( feature.id() ) )
{
continue;
}
}
exp.setCurrentRowNumber( rownum );
QVariant value = exp.evaluate( &feature );
if ( exp.hasEvalError() )
{
calculationSuccess = false;
error = exp.evalErrorString();
break;
}
else
{
mVectorLayer->changeAttributeValue( feature.id(), mAttributeId, value, false );
}
rownum++;
}
// stop blocking layerModified signals and make sure that one layerModified signal is emitted
mVectorLayer->blockSignals( false );
mVectorLayer->setModified( true, false );
if ( !calculationSuccess )
{
QMessageBox::critical( 0, tr( "Error" ), tr( "An error occured while evaluating the calculation string:\n%1" ).arg( error ) );
mVectorLayer->destroyEditCommand();
return;
}
mVectorLayer->endEditCommand();
}
QDialog::accept();
}
void QgsOfflineEditing::copyVectorLayer( QgsVectorLayer* layer, sqlite3* db, const QString& offlineDbPath )
{
if ( layer == NULL )
{
return;
}
QString tableName = layer->name();
// create table
QString sql = QString( "CREATE TABLE '%1' (" ).arg( tableName );
QString delim = "";
const QgsFieldMap& fields = layer->dataProvider()->fields();
for ( QgsFieldMap::const_iterator it = fields.begin(); it != fields.end() ; ++it )
{
QString dataType = "";
QVariant::Type type = it.value().type();
if ( type == QVariant::Int )
{
dataType = "INTEGER";
}
else if ( type == QVariant::Double )
{
dataType = "REAL";
}
else if ( type == QVariant::String )
{
dataType = "TEXT";
}
else
{
showWarning( tr( "Unknown data type %1" ).arg( type ) );
}
sql += delim + QString( "'%1' %2" ).arg( it.value().name() ).arg( dataType );
delim = ",";
}
sql += ")";
// add geometry column
QString geomType = "";
switch ( layer->wkbType() )
{
case QGis::WKBPoint:
geomType = "POINT";
break;
case QGis::WKBMultiPoint:
geomType = "MULTIPOINT";
break;
case QGis::WKBLineString:
geomType = "LINESTRING";
break;
case QGis::WKBMultiLineString:
geomType = "MULTILINESTRING";
break;
case QGis::WKBPolygon:
geomType = "POLYGON";
break;
case QGis::WKBMultiPolygon:
geomType = "MULTIPOLYGON";
break;
default:
showWarning( tr( "QGIS wkbType %1 not supported" ).arg( layer->wkbType() ) );
break;
};
QString sqlAddGeom = QString( "SELECT AddGeometryColumn('%1', 'Geometry', %2, '%3', 2)" )
.arg( tableName )
.arg( layer->crs().authid().startsWith( "EPSG:", Qt::CaseInsensitive ) ? layer->crs().authid().mid( 5 ).toLong() : 0 )
.arg( geomType );
// create spatial index
QString sqlCreateIndex = QString( "SELECT CreateSpatialIndex('%1', 'Geometry')" ).arg( tableName );
int rc = sqlExec( db, sql );
if ( rc == SQLITE_OK )
{
rc = sqlExec( db, sqlAddGeom );
if ( rc == SQLITE_OK )
{
rc = sqlExec( db, sqlCreateIndex );
}
}
if ( rc == SQLITE_OK )
{
// add new layer
QgsVectorLayer* newLayer = new QgsVectorLayer( QString( "dbname='%1' table='%2'(Geometry) sql=" )
.arg( offlineDbPath ).arg( tableName ), tableName + " (offline)", "spatialite" );
if ( newLayer->isValid() )
{
// mark as offline layer
newLayer->setCustomProperty( CUSTOM_PROPERTY_IS_OFFLINE_EDITABLE, true );
// store original layer source
newLayer->setCustomProperty( CUSTOM_PROPERTY_REMOTE_SOURCE, layer->source() );
newLayer->setCustomProperty( CUSTOM_PROPERTY_REMOTE_PROVIDER, layer->providerType() );
// copy style
bool hasLabels = layer->hasLabelsEnabled();
if ( !hasLabels )
{
// NOTE: copy symbology before adding the layer so it is displayed correctly
copySymbology( layer, newLayer );
}
// register this layer with the central layers registry
QgsMapLayerRegistry::instance()->addMapLayer( newLayer );
if ( hasLabels )
{
// NOTE: copy symbology of layers with labels enabled after adding to project, as it will crash otherwise (WORKAROUND)
copySymbology( layer, newLayer );
}
// TODO: layer order
// copy features
newLayer->startEditing();
QgsFeature f;
// NOTE: force feature recount for PostGIS layer, else only visible features are counted, before iterating over all features (WORKAROUND)
layer->setSubsetString( "" );
layer->select( layer->pendingAllAttributesList(), QgsRectangle(), true, false );
mProgressDialog->setupProgressBar( tr( "%v / %m features copied" ), layer->featureCount() );
int featureCount = 1;
QList<int> remoteFeatureIds;
while ( layer->nextFeature( f ) )
{
remoteFeatureIds << f.id();
// NOTE: Spatialite provider ignores position of geometry column
// fill gap in QgsAttributeMap if geometry column is not last (WORKAROUND)
int column = 0;
QgsAttributeMap newAttrMap;
QgsAttributeMap attrMap = f.attributeMap();
for ( QgsAttributeMap::const_iterator it = attrMap.begin(); it != attrMap.end(); ++it )
{
newAttrMap.insert( column++, it.value() );
}
f.setAttributeMap( newAttrMap );
newLayer->addFeature( f, false );
mProgressDialog->setProgressValue( featureCount++ );
}
if ( newLayer->commitChanges() )
{
mProgressDialog->setupProgressBar( tr( "%v / %m features processed" ), layer->featureCount() );
featureCount = 1;
// update feature id lookup
int layerId = getOrCreateLayerId( db, newLayer->id() );
QList<int> offlineFeatureIds;
newLayer->select( QgsAttributeList(), QgsRectangle(), false, false );
while ( newLayer->nextFeature( f ) )
{
offlineFeatureIds << f.id();
}
// NOTE: insert fids in this loop, as the db is locked during newLayer->nextFeature()
sqlExec( db, "BEGIN" );
for ( int i = 0; i < remoteFeatureIds.size(); i++ )
{
addFidLookup( db, layerId, offlineFeatureIds.at( i ), remoteFeatureIds.at( i ) );
mProgressDialog->setProgressValue( featureCount++ );
}
sqlExec( db, "COMMIT" );
}
else
{
showWarning( newLayer->commitErrors().join( "\n" ) );
}
// remove remote layer
QgsMapLayerRegistry::instance()->removeMapLayer( layer->id() );
}
}
}