void QgsRelationReferenceWidget::setRelation( const QgsRelation& relation, bool allowNullValue )
{
mAllowNull = allowNullValue;
mRemoveFKButton->setVisible( allowNullValue && mReadOnlySelector );
if ( relation.isValid() )
{
mInvalidLabel->hide();
mRelation = relation;
mReferencingLayer = relation.referencingLayer();
mRelationName = relation.name();
mReferencedLayer = relation.referencedLayer();
mReferencedFieldIdx = mReferencedLayer->fields().lookupField( relation.fieldPairs().at( 0 ).second );
mReferencingFieldIdx = mReferencingLayer->fields().lookupField( relation.fieldPairs().at( 0 ).first );
mAttributeEditorFrame->setObjectName( QStringLiteral( "referencing/" ) + relation.name() );
QgsAttributeEditorContext context( mEditorContext, relation, QgsAttributeEditorContext::Single, QgsAttributeEditorContext::Embed );
if ( mEmbedForm )
{
mAttributeEditorFrame->setTitle( mReferencedLayer->name() );
mReferencedAttributeForm = new QgsAttributeForm( relation.referencedLayer(), QgsFeature(), context, this );
mAttributeEditorLayout->addWidget( mReferencedAttributeForm );
}
connect( mReferencedLayer, SIGNAL( editingStarted() ), this, SLOT( updateAddEntryButton() ) );
connect( mReferencedLayer, SIGNAL( editingStopped() ), this, SLOT( updateAddEntryButton() ) );
updateAddEntryButton();
}
else
{
mInvalidLabel->show();
}
if ( mShown && isVisible() )
{
init();
}
}
QgsRelationReferenceWidget::QgsRelationReferenceWidget( QWidget* parent )
: QWidget( parent )
, mEditorContext( QgsAttributeEditorContext() )
, mCanvas( nullptr )
, mMessageBar( nullptr )
, mForeignKey( QVariant() )
, mReferencedFieldIdx( -1 )
, mReferencingFieldIdx( -1 )
, mAllowNull( true )
, mHighlight( nullptr )
, mMapTool( nullptr )
, mMessageBarItem( nullptr )
, mRelationName( QLatin1String( "" ) )
, mReferencedAttributeForm( nullptr )
, mReferencedLayer( nullptr )
, mReferencingLayer( nullptr )
, mMasterModel( nullptr )
, mFilterModel( nullptr )
, mFeatureListModel( nullptr )
, mWindowWidget( nullptr )
, mShown( false )
, mIsEditable( true )
, mEmbedForm( false )
, mReadOnlySelector( false )
, mAllowMapIdentification( false )
, mOrderByValue( false )
, mOpenFormButtonVisible( true )
, mChainFilters( false )
, mAllowAddFeatures( false )
{
mTopLayout = new QVBoxLayout( this );
mTopLayout->setContentsMargins( 0, 0, 0, 0 );
setSizePolicy( sizePolicy().horizontalPolicy(), QSizePolicy::Fixed );
setLayout( mTopLayout );
QHBoxLayout* editLayout = new QHBoxLayout();
editLayout->setContentsMargins( 0, 0, 0, 0 );
editLayout->setSpacing( 2 );
// Prepare the container and layout for the filter comboboxes
mChooserContainer = new QWidget;
editLayout->addWidget( mChooserContainer );
QHBoxLayout* chooserLayout = new QHBoxLayout;
chooserLayout->setContentsMargins( 0, 0, 0, 0 );
mFilterLayout = new QHBoxLayout;
mFilterLayout->setContentsMargins( 0, 0, 0, 0 );
mFilterContainer = new QWidget;
mFilterContainer->setLayout( mFilterLayout );
mChooserContainer->setLayout( chooserLayout );
chooserLayout->addWidget( mFilterContainer );
// combobox (for non-geometric relation)
mComboBox = new QComboBox();
mChooserContainer->layout()->addWidget( mComboBox );
// read-only line edit
mLineEdit = new QLineEdit();
mLineEdit->setReadOnly( true );
editLayout->addWidget( mLineEdit );
// open form button
mOpenFormButton = new QToolButton();
mOpenFormButton->setIcon( QgsApplication::getThemeIcon( QStringLiteral( "/mActionPropertyItem.svg" ) ) );
mOpenFormButton->setText( tr( "Open related feature form" ) );
editLayout->addWidget( mOpenFormButton );
mAddEntryButton = new QToolButton();
mAddEntryButton->setIcon( QgsApplication::getThemeIcon( QStringLiteral( "/mActionAdd.svg" ) ) );
mAddEntryButton->setText( tr( "Add new entry" ) );
editLayout->addWidget( mAddEntryButton );
// highlight button
mHighlightFeatureButton = new QToolButton( this );
mHighlightFeatureButton->setPopupMode( QToolButton::MenuButtonPopup );
mHighlightFeatureAction = new QAction( QgsApplication::getThemeIcon( QStringLiteral( "/mActionHighlightFeature.svg" ) ), tr( "Highlight feature" ), this );
mScaleHighlightFeatureAction = new QAction( QgsApplication::getThemeIcon( QStringLiteral( "/mActionScaleHighlightFeature.svg" ) ), tr( "Scale and highlight feature" ), this );
mPanHighlightFeatureAction = new QAction( QgsApplication::getThemeIcon( QStringLiteral( "/mActionPanHighlightFeature.svg" ) ), tr( "Pan and highlight feature" ), this );
mHighlightFeatureButton->addAction( mHighlightFeatureAction );
mHighlightFeatureButton->addAction( mScaleHighlightFeatureAction );
mHighlightFeatureButton->addAction( mPanHighlightFeatureAction );
mHighlightFeatureButton->setDefaultAction( mHighlightFeatureAction );
editLayout->addWidget( mHighlightFeatureButton );
// map identification button
mMapIdentificationButton = new QToolButton( this );
mMapIdentificationButton->setIcon( QgsApplication::getThemeIcon( QStringLiteral( "/mActionMapIdentification.svg" ) ) );
mMapIdentificationButton->setText( tr( "Select on map" ) );
mMapIdentificationButton->setCheckable( true );
editLayout->addWidget( mMapIdentificationButton );
// remove foreign key button
mRemoveFKButton = new QToolButton( this );
mRemoveFKButton->setIcon( QgsApplication::getThemeIcon( QStringLiteral( "/mActionRemove.svg" ) ) );
mRemoveFKButton->setText( tr( "No selection" ) );
editLayout->addWidget( mRemoveFKButton );
// add line to top layout
mTopLayout->addLayout( editLayout );
// embed form
mAttributeEditorFrame = new QgsCollapsibleGroupBox( this );
mAttributeEditorLayout = new QVBoxLayout( mAttributeEditorFrame );
mAttributeEditorFrame->setLayout( mAttributeEditorLayout );
mAttributeEditorFrame->setSizePolicy( mAttributeEditorFrame->sizePolicy().horizontalPolicy(), QSizePolicy::Expanding );
mTopLayout->addWidget( mAttributeEditorFrame );
// invalid label
mInvalidLabel = new QLabel( tr( "The relation is not valid. Please make sure your relation definitions are ok." ) );
mInvalidLabel->setWordWrap( true );
QFont font = mInvalidLabel->font();
font.setItalic( true );
mInvalidLabel->setStyleSheet( QStringLiteral( "QLabel { color: red; } " ) );
mInvalidLabel->setFont( font );
mTopLayout->addWidget( mInvalidLabel );
// default mode is combobox, no geometric relation and no embed form
mLineEdit->hide();
mMapIdentificationButton->hide();
mHighlightFeatureButton->hide();
mAttributeEditorFrame->hide();
mInvalidLabel->hide();
// connect buttons
connect( mOpenFormButton, SIGNAL( clicked() ), this, SLOT( openForm() ) );
connect( mHighlightFeatureButton, SIGNAL( triggered( QAction* ) ), this, SLOT( highlightActionTriggered( QAction* ) ) );
connect( mMapIdentificationButton, SIGNAL( clicked() ), this, SLOT( mapIdentification() ) );
connect( mRemoveFKButton, SIGNAL( clicked() ), this, SLOT( deleteForeignKey() ) );
connect( mAddEntryButton, SIGNAL( clicked( bool ) ), this, SLOT( addEntry() ) );
connect( mComboBox, SIGNAL( editTextChanged( QString ) ), this, SLOT( updateAddEntryButton() ) );
}
void QgsRelationReferenceWidget::setAllowAddFeatures( bool allowAddFeatures )
{
mAllowAddFeatures = allowAddFeatures;
updateAddEntryButton();
}
