|
| 1 | + |
| 2 | +/** \ingroup gui |
| 3 | + * \class QgsLayerTreeEmbeddedWidgetProvider |
| 4 | + * Provider interface to be implemented in order to introduce new kinds of embedded widgets for use in layer tree. |
| 5 | + * Embedded widgets are assigned per individual map layers and they are shown before any legend entries. |
| 6 | + * @see QgsLayerTreeEmbeddedWidgetRegistry |
| 7 | + * @note introduced in QGIS 2.16 |
| 8 | + */ |
| 9 | +class QgsLayerTreeEmbeddedWidgetProvider |
| 10 | +{ |
| 11 | +%TypeHeaderCode |
| 12 | +#include <qgslayertreeembeddedwidgetregistry.h> |
| 13 | +%End |
| 14 | + |
| 15 | + public: |
| 16 | + virtual ~QgsLayerTreeEmbeddedWidgetProvider(); |
| 17 | + |
| 18 | + //! Unique name of the provider (among other providers) |
| 19 | + virtual QString id() const = 0; |
| 20 | + |
| 21 | + //! Human readable name - may be translatable with tr() |
| 22 | + virtual QString name() const = 0; |
| 23 | + |
| 24 | + //! Factory to create widgets. The returned widget is owned by the caller. |
| 25 | + //! The widgetIndex argument may be used to identify which widget is being |
| 26 | + //! created (useful when using multiple widgets from the same provider for one layer). |
| 27 | + virtual QWidget* createWidget( QgsMapLayer* layer, int widgetIndex ) = 0 /Factory/; |
| 28 | + |
| 29 | + //! Whether it makes sense to use this widget for a particular layer |
| 30 | + virtual bool supportsLayer( QgsMapLayer* layer ) = 0; |
| 31 | +}; |
| 32 | + |
| 33 | +/** \ingroup gui |
| 34 | + * \class QgsLayerTreeEmbeddedWidgetRegistry |
| 35 | + * Registry of widgets that may be embedded into layer tree view. |
| 36 | + * Embedded widgets are assigned per individual map layers and they are shown before any legend entries. |
| 37 | + * Layer tree must have UseEmbeddedWidgets flag enabled in order to show assigned widgets. |
| 38 | + * |
| 39 | + * @see QgsLayerTreeEmbeddedWidgetRegistry |
| 40 | + * @note introduced in QGIS 2.16 |
| 41 | + */ |
| 42 | +class QgsLayerTreeEmbeddedWidgetRegistry |
| 43 | +{ |
| 44 | +%TypeHeaderCode |
| 45 | +#include <qgslayertreeembeddedwidgetregistry.h> |
| 46 | +%End |
| 47 | + |
| 48 | + public: |
| 49 | + |
| 50 | + /** Means of accessing canonical single instance */ |
| 51 | + static QgsLayerTreeEmbeddedWidgetRegistry* instance(); |
| 52 | + |
| 53 | + ~QgsLayerTreeEmbeddedWidgetRegistry(); |
| 54 | + |
| 55 | + /** Return list of all registered providers */ |
| 56 | + QStringList providers() const; |
| 57 | + |
| 58 | + /** Get provider object from the provider's ID */ |
| 59 | + QgsLayerTreeEmbeddedWidgetProvider* provider( const QString& providerId ) const; |
| 60 | + |
| 61 | + /** Register a provider, takes ownership of the object. |
| 62 | + * Returns true on success, false if the provider is already registered. */ |
| 63 | + bool addProvider( QgsLayerTreeEmbeddedWidgetProvider* provider /Transfer/ ); |
| 64 | + |
| 65 | + /** Unregister a provider, the provider object is deleted. |
| 66 | + * Returns true on success, false if the provider was not registered. */ |
| 67 | + bool removeProvider( const QString& providerId ); |
| 68 | + |
| 69 | + protected: |
| 70 | + //! Protected constructor - use instance() to access the registry. |
| 71 | + QgsLayerTreeEmbeddedWidgetRegistry(); |
| 72 | +}; |
0 commit comments