void QgsComposerUtils::readDataDefinedProperty( const QgsComposerObject::DataDefinedProperty property, const QDomElement &ddElem, QMap<QgsComposerObject::DataDefinedProperty, QgsDataDefined *> *dataDefinedProperties )
{
if ( property == QgsComposerObject::AllProperties || property == QgsComposerObject::NoProperty )
{
//invalid property
return;
}
QMap< QgsComposerObject::DataDefinedProperty, QgsDataDefined* >::const_iterator it = dataDefinedProperties->constFind( property );
QgsDataDefined* dd = 0;
if ( it != dataDefinedProperties->constEnd() )
{
dd = it.value();
}
else
{
//QgsDataDefined for property doesn't currently exist, need to add new
dd = new QgsDataDefined();
dataDefinedProperties->insert( property, dd );
}
//set values for QgsDataDefined
QString active = ddElem.attribute( "active" );
if ( active.compare( "true", Qt::CaseInsensitive ) == 0 )
{
dd->setActive( true );
}
else
{
dd->setActive( false );
}
dd->setField( ddElem.attribute( "field" ) );
dd->setExpressionString( ddElem.attribute( "expr" ) );
QString useExpr = ddElem.attribute( "useExpr" );
if ( useExpr.compare( "true", Qt::CaseInsensitive ) == 0 )
{
dd->setUseExpression( true );
}
else
{
dd->setUseExpression( false );
}
}
void TestQgsDataDefined::gettersSetters()
{
QgsDataDefined dd;
dd.setActive( false );
QVERIFY( !dd.isActive() );
dd.setActive( true );
QVERIFY( dd.isActive() );
dd.setUseExpression( false );
QVERIFY( !dd.useExpression() );
dd.setUseExpression( true );
QVERIFY( dd.useExpression() );
dd.setExpressionString( QString( "expression" ) );
QCOMPARE( dd.expressionString(), QString( "expression" ) );
dd.setField( QString( "field" ) );
QCOMPARE( dd.field(), QString( "field" ) );
}
void TestQgsDataDefined::assignment()
{
QgsDataDefined original( true, true, QString( "sqrt(2)" ), QString( "field" ) );
QgsDataDefined copy;
copy = original;
QVERIFY( copy == original );
copy.setActive( false );
QVERIFY( original.isActive() );
QVERIFY( copy != original );
}
void TestQgsDataDefined::expressionOrString()
{
QgsDataDefined dd;
dd.setActive( true );
dd.setField( "field" );
dd.setExpressionString( "1+col1+col2" );
dd.setUseExpression( true );
QCOMPARE( dd.expressionOrField(), QString( "1+col1+col2" ) );
dd.setUseExpression( false );
QCOMPARE( dd.expressionOrField(), QString( "\"field\"" ) );
}
void TestQgsDataDefined::referencedColumns()
{
QgsDataDefined dd;
dd.setActive( true );
dd.setUseExpression( true );
QStringList cols = dd.referencedColumns();
QVERIFY( cols.isEmpty() );
//set as expression
dd.setExpressionString( "1+col1+col2" );
cols = dd.referencedColumns();
QCOMPARE( cols.length(), 2 );
QVERIFY( cols.contains( QString( "col1" ) ) );
QVERIFY( cols.contains( QString( "col2" ) ) );
//alter expression and check that referenced columns is updated
dd.setExpressionString( "1+col1+col2+col3" );
cols = dd.referencedColumns();
QCOMPARE( cols.length(), 3 );
QVERIFY( cols.contains( QString( "col1" ) ) );
QVERIFY( cols.contains( QString( "col2" ) ) );
QVERIFY( cols.contains( QString( "col3" ) ) );
//switch to field
dd.setUseExpression( false );
cols = dd.referencedColumns();
QVERIFY( cols.isEmpty() );
dd.setField( "field" );
cols = dd.referencedColumns();
QCOMPARE( cols.length(), 1 );
QVERIFY( cols.contains( QString( "field" ) ) );
//switch back to expression
dd.setUseExpression( true );
cols = dd.referencedColumns();
QCOMPARE( cols.length(), 3 );
QVERIFY( cols.contains( QString( "col1" ) ) );
QVERIFY( cols.contains( QString( "col2" ) ) );
QVERIFY( cols.contains( QString( "col3" ) ) );
}
void TestQgsDataDefined::defaultValues()
{
QgsDataDefined* dd = new QgsDataDefined();
QVERIFY( dd->hasDefaultValues() );
dd->setActive( true );
QVERIFY( !dd->hasDefaultValues() );
delete dd;
dd = new QgsDataDefined();
dd->setUseExpression( true );
QVERIFY( !dd->hasDefaultValues() );
delete dd;
dd = new QgsDataDefined();
dd->setExpressionString( QString( "expression" ) );
QVERIFY( !dd->hasDefaultValues() );
delete dd;
dd = new QgsDataDefined();
dd->setField( QString( "field" ) );
QVERIFY( !dd->hasDefaultValues() );
delete dd;
}
