void QgsUniqueValueDialog::apply()
{
QgsDebugMsg( "called." );
QgsUniqueValueRenderer *renderer = new QgsUniqueValueRenderer( mVectorLayer->geometryType() );
//go through mValues and add the entries to the renderer
for ( QMap<QString, QgsSymbol*>::iterator it = mValues.begin(); it != mValues.end(); ++it )
{
QgsSymbol* symbol = it.value();
QgsSymbol* newsymbol = new QgsSymbol( mVectorLayer->geometryType(), symbol->lowerValue(), symbol->upperValue(), symbol->label() );
newsymbol->setPen( symbol->pen() );
newsymbol->setCustomTexture( symbol->customTexture() );
newsymbol->setBrush( symbol->brush() );
newsymbol->setNamedPointSymbol( symbol->pointSymbolName() );
newsymbol->setPointSize( symbol->pointSize() );
newsymbol->setPointSizeUnits( symbol->pointSizeUnits() );
newsymbol->setScaleClassificationField( symbol->scaleClassificationField() );
newsymbol->setRotationClassificationField( symbol->rotationClassificationField() );
renderer->insertValue( it.key(), newsymbol );
}
renderer->updateSymbolAttributes();
QgsVectorDataProvider *provider = dynamic_cast<QgsVectorDataProvider *>( mVectorLayer->dataProvider() );
if ( provider )
{
int fieldIndex = mClassificationComboBox->itemData( mClassificationComboBox->currentIndex() ).toInt();
if ( fieldIndex != -1 )
{
renderer->setClassificationField( fieldIndex );
mVectorLayer->setRenderer( renderer );
return;
}
}
delete renderer; //something went wrong
}
QgsUniqueValueDialog::QgsUniqueValueDialog( QgsVectorLayer* vl ): QDialog(), mVectorLayer( vl ), sydialog( vl, true )
{
setupUi( this );
setOrientation( Qt::Vertical );
//find out the fields of mVectorLayer
if ( mVectorLayer )
{
//we cannot use unique values for not-commited fields because QgsVectorLayer has no 'unique values' method...
QgsVectorDataProvider* provider = mVectorLayer->dataProvider();
if ( provider )
{
const QgsFieldMap & fields = provider->fields();
QString str;
for ( QgsFieldMap::const_iterator it = fields.begin(); it != fields.end(); ++it )
{
str = ( *it ).name();
str = mVectorLayer->attributeDisplayName( it.key() );
mClassificationComboBox->addItem( str, it.key() );
}
}
}
mClassListWidget->setSelectionMode( QAbstractItemView::ExtendedSelection );
mClassListWidget->setEditTriggers( QAbstractItemView::DoubleClicked | QAbstractItemView::EditKeyPressed | QAbstractItemView::AnyKeyPressed );
mClassListWidget->setSortingEnabled( true );
if ( mVectorLayer )
{
const QgsUniqueValueRenderer* renderer = dynamic_cast<const QgsUniqueValueRenderer *>( mVectorLayer->renderer() );
if ( renderer )
{
mClassListWidget->clear();
QString field = mVectorLayer->attributeDisplayName( renderer->classificationField() );
mOldClassificationAttribute = field;
mClassificationComboBox->setCurrentIndex( mClassificationComboBox->findText( field ) );
const QList<QgsSymbol*> list = renderer->symbols();
//fill the items of the renderer into mValues
for ( QList<QgsSymbol*>::const_iterator iter = list.begin(); iter != list.end(); ++iter )
{
QgsSymbol* symbol = *iter;
QString symbolvalue = symbol->lowerValue();
QgsSymbol* sym = new QgsSymbol( mVectorLayer->geometryType(), symbol->lowerValue(), symbol->upperValue(), symbol->label() );
sym->setPen( symbol->pen() );
sym->setCustomTexture( symbol->customTexture() );
sym->setBrush( symbol->brush() );
sym->setNamedPointSymbol( symbol->pointSymbolName() );
sym->setPointSize( symbol->pointSize() );
sym->setPointSizeUnits( symbol->pointSizeUnits() );
sym->setScaleClassificationField( symbol->scaleClassificationField() );
sym->setRotationClassificationField( symbol->rotationClassificationField() );
mValues.insert( symbolvalue, sym );
QListWidgetItem *item = new QListWidgetItem( symbolvalue );
mClassListWidget->addItem( item );
updateEntryIcon( symbol, item );
item->setFlags( Qt::ItemIsSelectable | Qt::ItemIsEditable | Qt::ItemIsEnabled );
item->setData( Qt::UserRole, symbol->lowerValue() );
item->setToolTip( symbol->label() );
}
}
}
mDeletePushButton->setEnabled( false );
connect( mClassifyButton, SIGNAL( clicked() ), this, SLOT( changeClassificationAttribute() ) );
connect( mAddButton, SIGNAL( clicked() ), this, SLOT( addClass() ) );
connect( mDeletePushButton, SIGNAL( clicked() ), this, SLOT( deleteSelectedClasses() ) );
connect( mRandomizeColors, SIGNAL( clicked() ), this, SLOT( randomizeColors() ) );
connect( mResetColors, SIGNAL( clicked() ), this, SLOT( resetColors() ) );
connect( mClassListWidget, SIGNAL( itemSelectionChanged() ), this, SLOT( selectionChanged() ) );
connect( mCommonPropertyLock, SIGNAL( clicked() ), this, SLOT( selectionChanged() ) );
connect( mClassListWidget, SIGNAL( itemChanged( QListWidgetItem * ) ), this, SLOT( itemChanged( QListWidgetItem * ) ) );
connect( &sydialog, SIGNAL( settingsChanged() ), this, SLOT( applySymbologyChanges() ) );
mSymbolWidgetStack->addWidget( &sydialog );
mSymbolWidgetStack->setCurrentWidget( &sydialog );
}