QgsDataDefinedSymbolDialog::QgsDataDefinedSymbolDialog( const QMap< QString, QPair< QString, QString > >& properties, const QgsVectorLayer* vl,
QWidget* parent, Qt::WindowFlags f ): QDialog( parent, f ), mVectorLayer( vl )
{
setupUi( this );
QgsFields attributeFields;
if ( mVectorLayer )
{
attributeFields = mVectorLayer->pendingFields();
}
mTableWidget->setRowCount( properties.size() );
int i = 0;
QMap< QString, QPair< QString, QString > >::const_iterator it = properties.constBegin();
for ( ; it != properties.constEnd(); ++it )
{
//check box
QCheckBox* cb = new QCheckBox( this );
cb->setChecked( !it.value().second.isEmpty() );
mTableWidget->setCellWidget( i, 0, cb );
mTableWidget->setColumnWidth( 0, cb->width() );
//property name
QTableWidgetItem* propertyItem = new QTableWidgetItem( it.value().first );
propertyItem->setData( Qt::UserRole, it.key() );
mTableWidget->setItem( i, 1, propertyItem );
//attribute list
QString expressionString = it.value().second;
QComboBox* attributeComboBox = new QComboBox( this );
attributeComboBox->addItem( QString() );
for ( int j = 0; j < attributeFields.count(); ++j )
{
attributeComboBox->addItem( attributeFields.at( j ).name() );
}
int attrComboIndex = comboIndexForExpressionString( expressionString, attributeComboBox );
if ( attrComboIndex >= 0 )
{
attributeComboBox->setCurrentIndex( attrComboIndex );
}
else
{
attributeComboBox->setItemText( 0, expressionString );
}
mTableWidget->setCellWidget( i, 2, attributeComboBox );
//expression button
QPushButton* expressionButton = new QPushButton( "...", this );
QObject::connect( expressionButton, SIGNAL( clicked() ), this, SLOT( expressionButtonClicked() ) );
mTableWidget->setCellWidget( i, 3, expressionButton );
++i;
}
}
void QgsDataDefinedSymbolDialog::expressionButtonClicked()
{
QgsDebugMsg( "Expression button clicked" );
//find out row
QObject* senderObj = sender();
int row = 0;
for ( ; row < mTableWidget->rowCount(); ++row )
{
if ( senderObj == mTableWidget->cellWidget( row, 3 ) )
{
break;
}
}
QComboBox* attributeCombo = qobject_cast<QComboBox*>( mTableWidget->cellWidget( row, 2 ) );
if ( !attributeCombo )
{
return;
}
QString previousText = attributeCombo->itemText( attributeCombo->currentIndex() );
if ( attributeCombo->currentIndex() > 0 )
{
previousText.prepend( "\"" ).append( "\"" );
}
QgsExpressionBuilderDialog d( const_cast<QgsVectorLayer*>( mVectorLayer ), previousText );
if ( d.exec() == QDialog::Accepted )
{
QString expressionString = d.expressionText();
int comboIndex = comboIndexForExpressionString( d.expressionText(), attributeCombo );
if ( comboIndex == -1 )
{
attributeCombo->setItemText( 0, d.expressionText() );
attributeCombo->setCurrentIndex( 0 );
Q_ASSERT( d.expressionText() == attributeCombo->currentText() );
}
else
{
if ( comboIndex != 0 )
{
attributeCombo->setItemText( 0, QString() );
}
attributeCombo->setCurrentIndex( comboIndex );
}
}
}
QgsDataDefinedSymbolDialog::QgsDataDefinedSymbolDialog( const QList< DataDefinedSymbolEntry >& entries, const QgsVectorLayer* vl, QWidget * parent, Qt::WindowFlags f )
: QDialog( parent, f )
, mVectorLayer( vl )
{
setupUi( this );
QgsFields attributeFields;
if ( mVectorLayer )
{
attributeFields = mVectorLayer->pendingFields();
}
mTableWidget->setRowCount( entries.size() );
int i = 0;
QList< DataDefinedSymbolEntry >::const_iterator entryIt = entries.constBegin();
for ( ; entryIt != entries.constEnd(); ++entryIt )
{
//check box
QCheckBox* cb = new QCheckBox( this );
cb->setChecked( !entryIt->initialValue.isEmpty() );
mTableWidget->setCellWidget( i, 0, cb );
mTableWidget->setColumnWidth( 0, cb->width() );
//property name
QTableWidgetItem* propertyItem = new QTableWidgetItem( entryIt->title );
propertyItem->setData( Qt::UserRole, entryIt->property );
mTableWidget->setItem( i, 1, propertyItem );
//attribute list
QString expressionString = entryIt->initialValue;
QComboBox* attributeComboBox = new QComboBox( this );
attributeComboBox->addItem( QString() );
for ( int j = 0; j < attributeFields.count(); ++j )
{
attributeComboBox->addItem( attributeFields.at( j ).name() );
}
int attrComboIndex = comboIndexForExpressionString( expressionString, attributeComboBox );
if ( attrComboIndex >= 0 )
{
attributeComboBox->setCurrentIndex( attrComboIndex );
}
else
{
attributeComboBox->setItemText( 0, expressionString );
}
mTableWidget->setCellWidget( i, 2, attributeComboBox );
//expression button
QPushButton* expressionButton = new QPushButton( "...", this );
QObject::connect( expressionButton, SIGNAL( clicked() ), this, SLOT( expressionButtonClicked() ) );
mTableWidget->setCellWidget( i, 3, expressionButton );
//help text
QTableWidgetItem* helpItem = new QTableWidgetItem( entryIt->helpText );
mTableWidget->setItem( i, 4, helpItem );
++i;
}
}
