QAction* QgsLayerTreeViewDefaultActions::actionShowFeatureCount( QObject* parent )
{
QgsLayerTreeNode* node = mView->currentNode();
if ( !node )
return 0;
QAction* a = new QAction( tr( "Show Feature Count" ), parent );
connect( a, SIGNAL( triggered() ), this, SLOT( showFeatureCount() ) );
a->setCheckable( true );
a->setChecked( node->customProperty( "showFeatureCount", 0 ).toInt() );
return a;
}
QAction* QgsLayerTreeViewDefaultActions::actionShowInOverview( QObject* parent )
{
QgsLayerTreeNode* node = mView->currentNode();
if ( !node )
return nullptr;
QAction* a = new QAction( tr( "&Show in Overview" ), parent );
connect( a, SIGNAL( triggered() ), this, SLOT( showInOverview() ) );
a->setCheckable( true );
a->setChecked( node->customProperty( QStringLiteral( "overview" ), 0 ).toInt() );
return a;
}
QAction *QgsLayerTreeViewDefaultActions::actionShowFeatureCount( QObject *parent )
{
QgsLayerTreeNode *node = mView->currentNode();
if ( !node )
return nullptr;
QAction *a = new QAction( tr( "Show Feature Count" ), parent );
connect( a, &QAction::triggered, this, &QgsLayerTreeViewDefaultActions::showFeatureCount );
a->setCheckable( true );
a->setChecked( node->customProperty( QStringLiteral( "showFeatureCount" ), 0 ).toInt() );
return a;
}
QAction *QgsLayerTreeViewDefaultActions::actionShowInOverview( QObject *parent )
{
QgsLayerTreeNode *node = mView->currentNode();
if ( !node )
return nullptr;
QAction *a = new QAction( QgsApplication::getThemeIcon( QStringLiteral( "/mActionInOverview.svg" ) ), tr( "&Show in Overview" ), parent );
connect( a, &QAction::triggered, this, &QgsLayerTreeViewDefaultActions::showInOverview );
a->setCheckable( true );
a->setChecked( node->customProperty( QStringLiteral( "overview" ), 0 ).toInt() );
return a;
}
void QgsLayerTreeView::modelRowsInserted( const QModelIndex& index, int start, int end )
{
QgsLayerTreeNode* parentNode = layerTreeModel()->index2node( index );
if ( !parentNode )
return;
// Embedded widgets - replace placeholders in the model by actual widgets
if ( layerTreeModel()->testFlag( QgsLayerTreeModel::UseEmbeddedWidgets ) && QgsLayerTree::isLayer( parentNode ) )
{
QgsLayerTreeLayer* nodeLayer = QgsLayerTree::toLayer( parentNode );
if ( QgsMapLayer* layer = nodeLayer->layer() )
{
int widgetsCount = layer->customProperty( "embeddedWidgets/count", 0 ).toInt();
QList<QgsLayerTreeModelLegendNode*> legendNodes = layerTreeModel()->layerLegendNodes( nodeLayer );
for ( int i = 0; i < widgetsCount; ++i )
{
QString providerId = layer->customProperty( QString( "embeddedWidgets/%1/id" ).arg( i ) ).toString();
if ( QgsLayerTreeEmbeddedWidgetProvider* provider = QgsLayerTreeEmbeddedWidgetRegistry::instance()->provider( providerId ) )
{
QModelIndex index = layerTreeModel()->legendNode2index( legendNodes[i] );
setIndexWidget( index, provider->createWidget( layer, i ) );
}
}
}
}
if ( QgsLayerTree::isLayer( parentNode ) )
{
// if ShowLegendAsTree flag is enabled in model, we may need to expand some legend nodes
QStringList expandedNodeKeys = parentNode->customProperty( "expandedLegendNodes" ).toStringList();
if ( expandedNodeKeys.isEmpty() )
return;
Q_FOREACH ( QgsLayerTreeModelLegendNode* legendNode, layerTreeModel()->layerLegendNodes( QgsLayerTree::toLayer( parentNode ) ) )
{
QString ruleKey = legendNode->data( QgsLayerTreeModelLegendNode::RuleKeyRole ).toString();
if ( expandedNodeKeys.contains( ruleKey ) )
setExpanded( layerTreeModel()->legendNode2index( legendNode ), true );
}
return;
}
Qt::ItemFlags QgsLayerTreeModel::flags( const QModelIndex& index ) const
{
if ( !index.isValid() )
{
Qt::ItemFlags rootFlags = Qt::ItemIsEnabled | Qt::ItemIsSelectable;
if ( testFlag( AllowNodeReorder ) )
rootFlags |= Qt::ItemIsDropEnabled;
return rootFlags;
}
if ( QgsLayerTreeModelLegendNode* symn = index2symnode( index ) )
{
Qt::ItemFlags f = symn->flags();
if ( !testFlag( AllowSymbologyChangeState ) )
f &= ~Qt::ItemIsUserCheckable;
return f;
}
Qt::ItemFlags f = Qt::ItemIsEnabled | Qt::ItemIsSelectable;
if ( testFlag( AllowNodeRename ) )
f |= Qt::ItemIsEditable;
QgsLayerTreeNode* node = index2node( index );
bool isEmbedded = node->customProperty( "embedded" ).toInt();
if ( testFlag( AllowNodeReorder ) )
{
// only root embedded nodes can be reordered
if ( !isEmbedded || ( isEmbedded && node->parent() && !node->parent()->customProperty( "embedded" ).toInt() ) )
f |= Qt::ItemIsDragEnabled;
}
if ( testFlag( AllowNodeChangeVisibility ) && ( QgsLayerTree::isLayer( node ) || QgsLayerTree::isGroup( node ) ) )
f |= Qt::ItemIsUserCheckable;
if ( testFlag( AllowNodeReorder ) && QgsLayerTree::isGroup( node ) && !isEmbedded )
f |= Qt::ItemIsDropEnabled;
return f;
}
void QgsLayerTreeView::modelRowsInserted( const QModelIndex& index, int start, int end )
{
QgsLayerTreeNode* parentNode = layerTreeModel()->index2node( index );
if ( !parentNode )
return;
if ( QgsLayerTree::isLayer( parentNode ) )
{
// if ShowLegendAsTree flag is enabled in model, we may need to expand some legend nodes
QStringList expandedNodeKeys = parentNode->customProperty( "expandedLegendNodes" ).toStringList();
if ( expandedNodeKeys.isEmpty() )
return;
Q_FOREACH ( QgsLayerTreeModelLegendNode* legendNode, layerTreeModel()->layerLegendNodes( QgsLayerTree::toLayer( parentNode ) ) )
{
QString ruleKey = legendNode->data( QgsLayerTreeModelLegendNode::RuleKeyRole ).toString();
if ( expandedNodeKeys.contains( ruleKey ) )
setExpanded( layerTreeModel()->legendNode2index( legendNode ), true );
}
return;
}
QVariant QgsLayerTreeModel::data( const QModelIndex &index, int role ) const
{
if ( !index.isValid() )
return QVariant();
if ( QgsLayerTreeModelLegendNode* sym = index2symnode( index ) )
{
if ( role == Qt::CheckStateRole && !testFlag( AllowSymbologyChangeState ) )
return QVariant();
return sym->data( role );
}
QgsLayerTreeNode* node = index2node( index );
if ( role == Qt::DisplayRole || role == Qt::EditRole )
{
if ( QgsLayerTree::isGroup( node ) )
return QgsLayerTree::toGroup( node )->name();
else if ( QgsLayerTree::isLayer( node ) )
{
QgsLayerTreeLayer* nodeLayer = QgsLayerTree::toLayer( node );
QString name = nodeLayer->layerName();
if ( nodeLayer->customProperty( "showFeatureCount", 0 ).toInt() && role == Qt::DisplayRole )
{
QgsVectorLayer* vlayer = qobject_cast<QgsVectorLayer*>( nodeLayer->layer() );
if ( vlayer && vlayer->pendingFeatureCount() >= 0 )
name += QString( " [%1]" ).arg( vlayer->pendingFeatureCount() );
}
return name;
}
}
else if ( role == Qt::DecorationRole && index.column() == 0 )
{
if ( QgsLayerTree::isGroup( node ) )
return iconGroup();
else if ( QgsLayerTree::isLayer( node ) )
{
QgsLayerTreeLayer* nodeLayer = QgsLayerTree::toLayer( node );
// if there's just on legend entry that should be embedded in layer - do that!
if ( testFlag( ShowSymbology ) && mSymbologyNodes[nodeLayer].count() == 1 && mSymbologyNodes[nodeLayer][0]->isEmbeddedInParent() )
return mSymbologyNodes[nodeLayer][0]->data( Qt::DecorationRole );
QgsMapLayer* layer = QgsLayerTree::toLayer( node )->layer();
if ( !layer )
return QVariant();
if ( layer->type() == QgsMapLayer::RasterLayer )
{
if ( testFlag( ShowRasterPreviewIcon ) )
{
QgsRasterLayer* rlayer = qobject_cast<QgsRasterLayer *>( layer );
return QIcon( rlayer->previewAsPixmap( QSize( 32, 32 ) ) );
}
else
return QgsLayerItem::iconRaster();
}
else if ( layer->type() == QgsMapLayer::VectorLayer )
{
QgsVectorLayer* vlayer = static_cast<QgsVectorLayer*>( layer );
if ( vlayer->isEditable() )
{
if ( vlayer->isModified() )
return QIcon( QgsApplication::getThemePixmap( "/mIconEditableEdits.png" ) );
else
return QIcon( QgsApplication::getThemePixmap( "/mIconEditable.png" ) );
}
if ( vlayer->geometryType() == QGis::Point )
return QgsLayerItem::iconPoint();
else if ( vlayer->geometryType() == QGis::Line )
return QgsLayerItem::iconLine();
else if ( vlayer->geometryType() == QGis::Polygon )
return QgsLayerItem::iconPolygon();
else if ( vlayer->geometryType() == QGis::NoGeometry )
return QgsLayerItem::iconTable();
}
return QgsLayerItem::iconDefault();
}
}
else if ( role == Qt::CheckStateRole )
{
if ( !testFlag( AllowNodeChangeVisibility ) )
return QVariant();
if ( QgsLayerTree::isLayer( node ) )
{
QgsLayerTreeLayer* nodeLayer = QgsLayerTree::toLayer( node );
if ( nodeLayer->layer() && nodeLayer->layer()->type() == QgsMapLayer::VectorLayer )
{
if ( qobject_cast<QgsVectorLayer*>( nodeLayer->layer() )->geometryType() == QGis::NoGeometry )
return QVariant(); // do not show checkbox for non-spatial tables
}
return nodeLayer->isVisible();
}
else if ( QgsLayerTree::isGroup( node ) )
{
QgsLayerTreeGroup* nodeGroup = QgsLayerTree::toGroup( node );
return nodeGroup->isVisible();
}
}
else if ( role == Qt::FontRole )
{
QFont f( QgsLayerTree::isLayer( node ) ? mFontLayer : ( QgsLayerTree::isGroup( node ) ? mFontGroup : QFont() ) );
if ( node->customProperty( "embedded" ).toInt() )
f.setItalic( true );
if ( index == mCurrentIndex )
f.setUnderline( true );
return f;
}
else if ( role == Qt::ToolTipRole )
{
if ( QgsLayerTree::isLayer( node ) )
{
if ( QgsMapLayer* layer = QgsLayerTree::toLayer( node )->layer() )
return layer->publicSource();
}
}
return QVariant();
}
QVariant QgsLayerTreeModel::data( const QModelIndex &index, int role ) const
{
if ( !index.isValid() || index.column() > 1 )
return QVariant();
if ( QgsLayerTreeModelLegendNode* sym = index2legendNode( index ) )
return legendNodeData( sym, role );
QgsLayerTreeNode* node = index2node( index );
if ( role == Qt::DisplayRole || role == Qt::EditRole )
{
if ( QgsLayerTree::isGroup( node ) )
return QgsLayerTree::toGroup( node )->name();
if ( QgsLayerTree::isLayer( node ) )
{
QgsLayerTreeLayer* nodeLayer = QgsLayerTree::toLayer( node );
QString name = nodeLayer->layerName();
if ( nodeLayer->customProperty( "showFeatureCount", 0 ).toInt() && role == Qt::DisplayRole )
{
QgsVectorLayer* vlayer = qobject_cast<QgsVectorLayer*>( nodeLayer->layer() );
if ( vlayer && vlayer->featureCount() >= 0 )
name += QString( " [%1]" ).arg( vlayer->featureCount() );
}
return name;
}
}
else if ( role == Qt::DecorationRole && index.column() == 0 )
{
if ( QgsLayerTree::isGroup( node ) )
return iconGroup();
if ( QgsLayerTree::isLayer( node ) )
{
QgsLayerTreeLayer *nodeLayer = QgsLayerTree::toLayer( node );
QgsMapLayer *layer = nodeLayer->layer();
if ( !layer )
return QVariant();
// icons possibly overriding default icon
if ( layer->type() == QgsMapLayer::RasterLayer )
{
if ( testFlag( ShowRasterPreviewIcon ) )
{
QgsRasterLayer* rlayer = qobject_cast<QgsRasterLayer *>( layer );
return QIcon( QPixmap::fromImage( rlayer->previewAsImage( QSize( 32, 32 ) ) ) );
}
else
{
return QgsLayerItem::iconRaster();
}
}
QgsVectorLayer *vlayer = dynamic_cast<QgsVectorLayer*>( layer );
QIcon icon;
// if there's just on legend entry that should be embedded in layer - do that!
if ( testFlag( ShowLegend ) && legendEmbeddedInParent( nodeLayer ) )
{
icon = legendIconEmbeddedInParent( nodeLayer );
}
else if ( vlayer && layer->type() == QgsMapLayer::VectorLayer )
{
if ( vlayer->geometryType() == QGis::Point )
icon = QgsLayerItem::iconPoint();
else if ( vlayer->geometryType() == QGis::Line )
icon = QgsLayerItem::iconLine();
else if ( vlayer->geometryType() == QGis::Polygon )
icon = QgsLayerItem::iconPolygon();
else if ( vlayer->geometryType() == QGis::NoGeometry )
icon = QgsLayerItem::iconTable();
else
icon = QgsLayerItem::iconDefault();
}
if ( vlayer && vlayer->isEditable() )
{
QPixmap pixmap( icon.pixmap( 16, 16 ) );
QPainter painter( &pixmap );
painter.drawPixmap( 0, 0, 16, 16, QgsApplication::getThemePixmap( vlayer->isModified() ? "/mIconEditableEdits.png" : "/mIconEditable.png" ) );
painter.end();
icon = QIcon( pixmap );
}
return icon;
}
}
else if ( role == Qt::CheckStateRole )
{
if ( !testFlag( AllowNodeChangeVisibility ) )
return QVariant();
if ( QgsLayerTree::isLayer( node ) )
{
QgsLayerTreeLayer* nodeLayer = QgsLayerTree::toLayer( node );
if ( nodeLayer->layer() && nodeLayer->layer()->type() == QgsMapLayer::VectorLayer )
{
if ( qobject_cast<QgsVectorLayer*>( nodeLayer->layer() )->geometryType() == QGis::NoGeometry )
return QVariant(); // do not show checkbox for non-spatial tables
}
return nodeLayer->isVisible();
}
else if ( QgsLayerTree::isGroup( node ) )
{
QgsLayerTreeGroup* nodeGroup = QgsLayerTree::toGroup( node );
return nodeGroup->isVisible();
}
}
else if ( role == Qt::FontRole )
{
QFont f( QgsLayerTree::isLayer( node ) ? mFontLayer : ( QgsLayerTree::isGroup( node ) ? mFontGroup : QFont() ) );
if ( node->customProperty( "embedded" ).toInt() )
f.setItalic( true );
if ( index == mCurrentIndex )
f.setUnderline( true );
return f;
}
else if ( role == Qt::ToolTipRole )
{
if ( QgsLayerTree::isLayer( node ) )
{
if ( QgsMapLayer* layer = QgsLayerTree::toLayer( node )->layer() )
return layer->publicSource();
}
}
return QVariant();
}
