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/** \ingroup MapComposer
* A model that provides group, layer and classification items.
*/
class QgsLegendModel : QStandardItemModel
{
%TypeHeaderCode
#include <qgslegendmodel.h>
%End
public:
enum ItemType
{
GroupItem,
LayerItem,
ClassificationItem
};
QgsLegendModel();
~QgsLegendModel();
/**Sets layer set and groups*/
void setLayerSetAndGroups( const QStringList& layerIds, const QList< QPair< QString, QList<QString> > >& groupInfo );
void setLayerSet( const QStringList& layerIds, double scaleDenominator = -1, QString rule = "" );
/**Adds a group
@param text name of group (defaults to translation of "Group")
@param position insertion position (toplevel position (or -1 if it should be placed at the end of the legend).
@returns a pointer to the added group
*/
QStandardItem *addGroup( QString text = QString::null, int position = -1 );
/**Tries to automatically update a model entry (e.g. a whole layer or only a single item)*/
void updateItem( QStandardItem* item );
/**Updates the whole symbology of a layer*/
void updateLayer( QStandardItem* layerItem );
/**Tries to update a single classification item*/
void updateVectorV2ClassificationItem( QStandardItem* classificationItem, QgsSymbolV2* symbol, QString itemText );
void updateRasterClassificationItem( QStandardItem* classificationItem );
/** Update single item text using item userText and other properties like showFeatureCount */
void updateItemText( QStandardItem* item );
bool writeXML( QDomElement& composerLegendElem, QDomDocument& doc ) const;
bool readXML( const QDomElement& legendModelElem, const QDomDocument& doc );
Qt::DropActions supportedDropActions() const;
Qt::ItemFlags flags( const QModelIndex &index ) const;
/**Implemented to support drag operations*/
virtual bool removeRows( int row, int count, const QModelIndex & parent = QModelIndex() );
/**For the drag operation*/
QMimeData* mimeData( const QModelIndexList &indexes ) const;
QStringList mimeTypes() const;
/**Implements the drop operation*/
bool dropMimeData( const QMimeData *data, Qt::DropAction action, int row, int column, const QModelIndex &parent );
void setAutoUpdate( bool autoUpdate );
bool autoUpdate();
public slots:
void removeLayer( const QString& layerId );
void addLayer( QgsMapLayer* theMapLayer, double scaleDenominator = -1, QString rule = "" );
signals:
void layersChanged();
};
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