void QgsLabelingWidget::adaptToLayer()
{
if ( !mLayer )
return;
whileBlocking( mLabelModeComboBox )->setCurrentIndex( -1 );
// pick the right mode of the layer
if ( mLayer->labelsEnabled() && mLayer->labeling()->type() == QLatin1String( "rule-based" ) )
{
mLabelModeComboBox->setCurrentIndex( 2 );
}
else if ( mLayer->labelsEnabled() && mLayer->labeling()->type() == QLatin1String( "simple" ) )
{
QgsPalLayerSettings lyr = mLayer->labeling()->settings();
mLabelModeComboBox->setCurrentIndex( lyr.drawLabels ? 1 : 3 );
}
else
{
mLabelModeComboBox->setCurrentIndex( 0 );
}
QgsLabelingGui *lg = qobject_cast<QgsLabelingGui *>( mWidget );
if ( lg )
{
lg->updateUi();
}
}
void QgsLabelingWidget::labelModeChanged( int index )
{
if ( index < 0 )
return;
if ( index != 2 )
{
if ( QgsLabelingGui* widgetSimple = qobject_cast<QgsLabelingGui*>( mWidget ) )
{
// lighter variant - just change the mode of existing widget
if ( index == 3 )
widgetSimple->setLabelMode( QgsLabelingGui::ObstaclesOnly );
else
widgetSimple->setLabelMode( static_cast< QgsLabelingGui::LabelMode >( index ) );
return;
}
}
// in general case we need to recreate the widget
if ( mWidget )
mStackedWidget->removeWidget( mWidget );
delete mWidget;
mWidget = nullptr;
if ( index == 2 )
{
mWidget = new QgsRuleBasedLabelingWidget( mLayer, mCanvas, this );
}
else
{
QgsLabelingGui* w = new QgsLabelingGui( mLayer, mCanvas, nullptr, this );
if ( index == 3 )
w->setLabelMode( QgsLabelingGui::ObstaclesOnly );
else
w->setLabelMode( static_cast< QgsLabelingGui::LabelMode >( index ) );
w->init();
mWidget = w;
}
mStackedWidget->addWidget( mWidget );
mStackedWidget->setCurrentWidget( mWidget );
}
void QgsLabelingWidget::labelModeChanged( int index )
{
if ( mWidget )
mStackedWidget->removeWidget( mWidget );
delete mWidget;
mWidget = nullptr;
if ( index < 0 )
return;
if ( index == 2 )
{
QgsRuleBasedLabelingWidget *ruleWidget = new QgsRuleBasedLabelingWidget( mLayer, mCanvas, this );
ruleWidget->setDockMode( dockMode() );
connect( ruleWidget, &QgsPanelWidget::showPanel, this, &QgsPanelWidget::openPanel );
connect( ruleWidget, &QgsRuleBasedLabelingWidget::widgetChanged, this, &QgsLabelingWidget::widgetChanged );
mWidget = ruleWidget;
mStackedWidget->addWidget( mWidget );
mStackedWidget->setCurrentWidget( mWidget );
}
else if ( index == 1 || index == 3 )
{
if ( mLayer->labeling() && mLayer->labeling()->type() == QLatin1String( "simple" ) )
mSimpleSettings.reset( new QgsPalLayerSettings( mLayer->labeling()->settings() ) );
else
mSimpleSettings.reset( new QgsPalLayerSettings() );
QgsLabelingGui *simpleWidget = new QgsLabelingGui( mLayer, mCanvas, *mSimpleSettings, this );
simpleWidget->setDockMode( dockMode() );
connect( simpleWidget, &QgsTextFormatWidget::widgetChanged, this, &QgsLabelingWidget::widgetChanged );
if ( index == 3 )
simpleWidget->setLabelMode( QgsLabelingGui::ObstaclesOnly );
else
simpleWidget->setLabelMode( static_cast< QgsLabelingGui::LabelMode >( index ) );
mWidget = simpleWidget;
mStackedWidget->addWidget( mWidget );
mStackedWidget->setCurrentWidget( mWidget );
}
emit widgetChanged();
}
void QgsLabelingWidget::labelModeChanged( int index )
{
if ( mWidget )
mStackedWidget->removeWidget( mWidget );
delete mWidget;
mWidget = nullptr;
if ( index < 0 )
return;
if ( index == 2 )
{
// note - QgsRuleBasedLabelingWidget handles conversion of existing non-rule based labels to rule based
QgsRuleBasedLabelingWidget *ruleWidget = new QgsRuleBasedLabelingWidget( mLayer, mCanvas, this );
ruleWidget->setDockMode( dockMode() );
connect( ruleWidget, &QgsPanelWidget::showPanel, this, &QgsPanelWidget::openPanel );
connect( ruleWidget, &QgsRuleBasedLabelingWidget::widgetChanged, this, &QgsLabelingWidget::widgetChanged );
mWidget = ruleWidget;
mStackedWidget->addWidget( mWidget );
mStackedWidget->setCurrentWidget( mWidget );
}
else if ( index == 1 || index == 3 )
{
mSimpleSettings.reset();
if ( mLayer->labeling() && mLayer->labeling()->type() == QLatin1String( "simple" ) )
{
mSimpleSettings.reset( new QgsPalLayerSettings( mLayer->labeling()->settings() ) );
}
else if ( mLayer->labeling() && mLayer->labeling()->type() == QLatin1String( "rule-based" ) )
{
// changing from rule-based to simple labels... grab first rule, and copy settings
const QgsRuleBasedLabeling *rl = static_cast<const QgsRuleBasedLabeling *>( mLayer->labeling() );
if ( const QgsRuleBasedLabeling::Rule *rootRule = rl->rootRule() )
{
if ( const QgsRuleBasedLabeling::Rule *firstChild = rootRule->children().value( 0 ) )
{
if ( firstChild->settings() )
mSimpleSettings.reset( new QgsPalLayerSettings( *firstChild->settings() ) );
}
}
}
if ( !mSimpleSettings )
mSimpleSettings.reset( new QgsPalLayerSettings() );
QgsLabelingGui *simpleWidget = new QgsLabelingGui( mLayer, mCanvas, *mSimpleSettings, this );
simpleWidget->setDockMode( dockMode() );
connect( simpleWidget, &QgsTextFormatWidget::widgetChanged, this, &QgsLabelingWidget::widgetChanged );
connect( simpleWidget, &QgsLabelingGui::auxiliaryFieldCreated, this, &QgsLabelingWidget::auxiliaryFieldCreated );
if ( index == 3 )
simpleWidget->setLabelMode( QgsLabelingGui::ObstaclesOnly );
else
simpleWidget->setLabelMode( static_cast< QgsLabelingGui::LabelMode >( index ) );
mWidget = simpleWidget;
mStackedWidget->addWidget( mWidget );
mStackedWidget->setCurrentWidget( mWidget );
}
emit widgetChanged();
}
