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-rw-r--r--include/ingen/shared/ResourceImpl.hpp28
1 files changed, 19 insertions, 9 deletions
diff --git a/include/ingen/shared/ResourceImpl.hpp b/include/ingen/shared/ResourceImpl.hpp
index 13f1bd8f..fea21023 100644
--- a/include/ingen/shared/ResourceImpl.hpp
+++ b/include/ingen/shared/ResourceImpl.hpp
@@ -47,15 +47,25 @@ public:
Properties properties(Resource::Graph ctx) const;
const Raul::Atom& get_property(const Raul::URI& uri) const;
- const Raul::Atom& set_property(const Raul::URI& uri, const Raul::Atom& value,
- Resource::Graph ctx=Resource::DEFAULT);
- void remove_property(const Raul::URI& uri, const Raul::Atom& value);
- bool has_property(const Raul::URI& uri, const Raul::Atom& value) const;
- void add_property(const Raul::URI& uri, const Raul::Atom& value,
- Graph ctx=DEFAULT);
- void set_properties(const Properties& p);
- void add_properties(const Properties& p);
- void remove_properties(const Properties& p);
+
+ const Raul::Atom& set_property(const Raul::URI& uri,
+ const Raul::Atom& value,
+ Resource::Graph ctx=Resource::DEFAULT);
+
+ /** Hook called whenever a property is added.
+ * This can be used by derived classes to implement special behaviour for
+ * particular properties (e.g. ingen:value for ports).
+ */
+ virtual void on_property(const Raul::URI& uri, const Raul::Atom& value) {}
+
+ void remove_property(const Raul::URI& uri, const Raul::Atom& value);
+ bool has_property(const Raul::URI& uri, const Raul::Atom& value) const;
+ void add_property(const Raul::URI& uri,
+ const Raul::Atom& value,
+ Graph ctx = DEFAULT);
+ void set_properties(const Properties& p);
+ void add_properties(const Properties& p);
+ void remove_properties(const Properties& p);
void dump(std::ostream& os) const;