18#include "moc_qgslayertreefilterproxymodel.cpp"
25 : QSortFilterProxyModel( parent )
38 mCheckedLayers = layers;
50 if ( idx.column() == 0 )
52 return Qt::ItemIsEnabled | Qt::ItemIsUserCheckable;
54 return Qt::NoItemFlags;
59 QModelIndex newIndex = QSortFilterProxyModel::index( row, 0,
parent );
63 return createIndex( row, column, newIndex.internalId() );
68 return QSortFilterProxyModel::parent( createIndex( child.row(), 0, child.internalId() ) );
73 const QModelIndex
parent = idx.parent();
80 if ( idx.column() == 0 )
82 node = mLayerTreeModel->
index2node( mapToSource( idx ) );
93 if ( filterText == mFilterText )
96 mFilterText = filterText;
102 return mLayerTreeModel;
113 return mShowPrivateLayers;
118 if ( showPrivate == mShowPrivateLayers )
121 mShowPrivateLayers = showPrivate;
139 return mCheckedLayers.contains( layer );
146 mCheckedLayers << layer;
150 mCheckedLayers.removeAll( layer );
154void QgsLayerTreeFilterProxyModel::setLayerCheckedPrivate(
QgsMapLayer *layer,
bool checked )
162 const QModelIndex
index = mapFromSource( mLayerTreeModel->
node2index( node ) );
169bool QgsLayerTreeFilterProxyModel::layerShown(
QgsMapLayer *layer )
const
181 const auto constChildren = node->
children();
196 if ( !mFilterText.isEmpty() && !layer->
name().contains( mFilterText, Qt::CaseInsensitive ) )
205 return layerShown( layer );
211 if ( idx.column() == 0 )
213 if ( role == Qt::CheckStateRole )
224 return Qt::Unchecked;
230 bool hasChecked =
false, hasUnchecked =
false;
232 for ( n = 0; !hasChecked || !hasUnchecked; n++ )
234 const QVariant v =
data(
index( n, 0, idx ), role );
240 case Qt::PartiallyChecked:
242 return Qt::PartiallyChecked;
256 return Qt::Unchecked;
259 if ( hasChecked && hasUnchecked )
260 return Qt::PartiallyChecked;
265 Q_ASSERT( hasUnchecked );
266 return Qt::Unchecked;
271 return mLayerTreeModel->
data( mapToSource( idx ), role );
279 if (
index.column() == 0 )
281 if ( role == Qt::CheckStateRole )
287 if ( !child.isValid() )
300 if ( value.toInt() == Qt::Checked )
301 setLayerCheckedPrivate( layer,
true );
302 else if ( value.toInt() == Qt::Unchecked )
303 setLayerCheckedPrivate( layer,
false );
311 return mLayerTreeModel->
setData( mapToSource(
index ), value, role );
QFlags< LayerFilter > LayerFilters
QModelIndex index(int row, int column, const QModelIndex &parent=QModelIndex()) const override
bool nodeShown(QgsLayerTreeNode *node) const
Returns true if the specified node will be shown in the model.
virtual void setLayerChecked(QgsMapLayer *layer, bool checked)
This will set if the layer is checked or not.
bool filterAcceptsRow(int sourceRow, const QModelIndex &sourceParent) const override
virtual bool setData(const QModelIndex &index, const QVariant &value, int role) override
void setFilters(Qgis::LayerFilters filters)
Defines the type layers (vector, raster, etc) shown in the tree If the list is empty,...
virtual int columnCount(const QModelIndex &parent) const override
QgsMapLayer * mapLayer(const QModelIndex &idx) const
Returns the map layer at a given index.
void setLayerTreeModel(QgsLayerTreeModel *layerTreeModel)
Sets the layer tree model.
virtual bool isLayerChecked(QgsMapLayer *layer) const
Returns if the layer is checked or not.
virtual void setFilterText(const QString &filterText=QString())
Sets the filter text to search for a layer in the tree.
void setCheckedLayers(const QList< QgsMapLayer * > layers)
Initialize the list of checked layers.
void setShowPrivateLayers(bool showPrivate)
Determines if private layers are shown.
QModelIndex sibling(int row, int column, const QModelIndex &idx) const override
QModelIndex parent(const QModelIndex &child) const override
virtual QVariant data(const QModelIndex &index, int role) const override
QgsLayerTreeFilterProxyModel(QObject *parent=nullptr)
Constructor.
virtual Qt::ItemFlags flags(const QModelIndex &idx) const override
bool showPrivateLayers() const
Returns if private layers are shown.
QgsLayerTreeModel * layerTreeModel() const
Rerturns the layer tree model.
QgsLayerTreeLayer * findLayer(QgsMapLayer *layer) const
Find layer node representing the map layer.
QgsMapLayer * layer() const
Returns the map layer associated with this node.
The QgsLayerTreeModel class is model implementation for Qt item views framework.
QModelIndex node2index(QgsLayerTreeNode *node) const
Returns index for a given node. If the node does not belong to the layer tree, the result is undefine...
bool setData(const QModelIndex &index, const QVariant &value, int role=Qt::EditRole) override
QVariant data(const QModelIndex &index, int role=Qt::DisplayRole) const override
QgsLayerTree * rootGroup() const
Returns pointer to the root node of the layer tree. Always a non nullptr value.
QgsLayerTreeNode * index2node(const QModelIndex &index) const
Returns layer tree node for given index.
QModelIndex index(int row, int column, const QModelIndex &parent=QModelIndex()) const override
This class is a base class for nodes in a layer tree.
@ NodeGroup
Container of other groups and layers.
QList< QgsLayerTreeNode * > children()
Gets list of children of the node. Children are owned by the parent.
NodeType nodeType() const
Find out about type of the node. It is usually shorter to use convenience functions from QgsLayerTree...
static QgsLayerTreeLayer * toLayer(QgsLayerTreeNode *node)
Cast node to a layer.
static bool isLayer(const QgsLayerTreeNode *node)
Check whether the node is a valid layer node.
static bool layerMatchesFilters(const QgsMapLayer *layer, const Qgis::LayerFilters &filters)
Returns if the layer matches the given filters.
Base class for all map layer types.
QgsMapLayer::LayerFlags flags() const
Returns the flags for this layer.
@ Private
Determines if the layer is meant to be exposed to the GUI, i.e. visible in the layer legend tree.
static QgsProject * instance()
Returns the QgsProject singleton instance.
void readProject(const QDomDocument &document)
Emitted when a project is being read.