void QgsGraduatedSymbolRendererWidget::changeRangeSymbol( int rangeIdx )
{
const QgsRendererRange &range = mRenderer->ranges()[rangeIdx];
std::unique_ptr< QgsSymbol > newSymbol( range.symbol()->clone() );
QgsPanelWidget *panel = QgsPanelWidget::findParentPanel( this );
if ( panel && panel->dockMode() )
{
// bit tricky here - the widget doesn't take ownership of the symbol. So we need it to last for the duration of the
// panel's existence. Accordingly, just kinda give it ownership here, and clean up in cleanUpSymbolSelector
QgsSymbolSelectorWidget *dlg = new QgsSymbolSelectorWidget( newSymbol.release(), mStyle, mLayer, panel );
dlg->setContext( mContext );
dlg->setPanelTitle( range.label() );
connect( dlg, &QgsPanelWidget::widgetChanged, this, &QgsGraduatedSymbolRendererWidget::updateSymbolsFromWidget );
connect( dlg, &QgsPanelWidget::panelAccepted, this, &QgsGraduatedSymbolRendererWidget::cleanUpSymbolSelector );
openPanel( dlg );
}
else
{
QgsSymbolSelectorDialog dlg( newSymbol.get(), mStyle, mLayer, panel );
dlg.setContext( mContext );
if ( !dlg.exec() || !newSymbol )
{
return;
}
mGraduatedSymbol = std::move( newSymbol );
applyChangeToSymbol();
}
}
void QgsPointDisplacementRendererWidget::on_mCenterSymbolPushButton_clicked()
{
if ( !mRenderer || !mRenderer->centerSymbol() )
{
return;
}
QgsMarkerSymbol* markerSymbol = mRenderer->centerSymbol()->clone();
QgsSymbolSelectorWidget* dlg = new QgsSymbolSelectorWidget( markerSymbol, QgsStyle::defaultStyle(), mLayer, this );
dlg->setPanelTitle( tr( "Center symbol" ) );
QgsSymbolWidgetContext context = mContext;
QgsExpressionContextScope scope;
scope.addVariable( QgsExpressionContextScope::StaticVariable( QgsExpressionContext::EXPR_CLUSTER_COLOR, "", true ) );
scope.addVariable( QgsExpressionContextScope::StaticVariable( QgsExpressionContext::EXPR_CLUSTER_SIZE, 0, true ) );
QList< QgsExpressionContextScope > scopes = context.additionalExpressionContextScopes();
scopes << scope;
context.setAdditionalExpressionContextScopes( scopes );
dlg->setContext( context );
connect( dlg, SIGNAL( widgetChanged() ), this, SLOT( updateCenterSymbolFromWidget() ) );
connect( dlg, SIGNAL( panelAccepted( QgsPanelWidget* ) ), this, SLOT( cleanUpSymbolSelector( QgsPanelWidget* ) ) );
openPanel( dlg );
}
