1 #ifndef __DALI_TYPE_INFO_H__
2 #define __DALI_TYPE_INFO_H__
5 * Copyright (c) 2014 Samsung Electronics Co., Ltd.
7 * Licensed under the Apache License, Version 2.0 (the "License");
8 * you may not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
11 * http://www.apache.org/licenses/LICENSE-2.0
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
23 #include <dali/public-api/object/base-handle.h>
28 class ConnectionTrackerInterface;
29 class FunctorDelegate;
31 namespace Internal DALI_INTERNAL
36 typedef std::vector<Property::Value> PropertyValueContainer;
37 typedef PropertyValueContainer::iterator PropertyValueIter; ///< Iterator for Dali::PropertyValueContainer
38 typedef PropertyValueContainer::const_iterator PropertyValueConstIter; ///< Const iterator for Dali::PropertyValueContainer
41 * @brief TypeInfo class for instantiation of registered types and introspection of
42 * their actions and signals.
44 * See TypeRegistry for methods of type registration and TypeInfo retrieval.
46 class DALI_IMPORT_API TypeInfo : public BaseHandle
49 typedef BaseHandle (*CreateFunction)(); ///< Function signature for creating an instance of the associated object type.
51 typedef bool (*ActionFunction)(BaseObject*, const std::string&, const PropertyValueContainer&); ///< Function signature for creating scriptable actions
54 * @brief Connects a callback function with the object's signals.
56 * @param[in] object The object providing the signal.
57 * @param[in] tracker Used to disconnect the signal.
58 * @param[in] signalName The signal to connect to.
59 * @param[in] functor A newly allocated FunctorDelegate.
60 * @return True if the signal was connected.
61 * @post If a signal was connected, ownership of functor was passed to CallbackBase. Otherwise the caller is responsible for deleting the unused functor.
63 typedef bool (*SignalConnectorFunctionV2)(BaseObject* object, ConnectionTrackerInterface* tracker, const std::string& signalName, FunctorDelegate* functor);
66 * @brief Callback to set an event-thread only property.
68 * @see PropertyRegistration.
69 * @param[in] object The object whose property should be set.
70 * @param[in] index The index of the property being set.
71 * @param[in] value The new value of the property for the object specified.
73 typedef void (*SetPropertyFunction)( BaseObject* object, Property::Index index, const Property::Value& value );
76 * @brief Callback to get the value of an event-thread only property.
78 * @see PropertyRegistration.
79 * @param[in] object The object whose property value is required.
80 * @param[in] index The index of the property required.
81 * @return The current value of the property for the object specified.
83 typedef Property::Value (*GetPropertyFunction)( BaseObject* object, Property::Index index );
85 typedef std::vector<std::string> NameContainer; ///< Container of names for signals and actions
88 * @brief Allows the creation of an empty TypeInfo handle.
95 * This is non-virtual since derived Handle types must not contain data or virtual methods.
100 * @brief This copy constructor is required for (smart) pointer semantics.
102 * @param [in] handle A reference to the copied handle
104 TypeInfo(const TypeInfo& handle);
107 * @brief This assignment operator is required for (smart) pointer semantics.
109 * @param [in] rhs A reference to the copied handle
110 * @return A reference to this
112 TypeInfo& operator=(const TypeInfo& rhs);
115 * @brief Retrieve the type name for this type.
117 * @return string name
119 const std::string& GetName() const;
122 * @brief Retrieve the base type name for this type.
124 * @return string of base name
126 const std::string& GetBaseName() const;
129 * @brief Create an object from this type.
131 * @return the BaseHandle for the newly created object
133 BaseHandle CreateInstance() const;
136 * @brief Retrieve the creator function for this type.
138 * @return the creator function
140 CreateFunction GetCreator() const;
143 * @brief Retrieve the actions for this type.
145 * @param[in] container of action names
147 void GetActions( NameContainer &container ) const;
150 * @brief Retrieve the signals for this type.
152 * @param[in] container of action names
154 void GetSignals( NameContainer &container ) const;
157 * @brief Retrieve the event side registered properties for this type.
159 * @param[in] container of action names
161 void GetProperties( NameContainer &container ) const;
166 * @brief Retrieve all the property indices for this type.
168 * @param[out] indices Container of property indices
169 * @note The container will be cleared
171 void GetPropertyIndices( Property::IndexContainer& indices ) const;
174 * @brief Given a property index, retrieve the property name associated with it.
176 * @param[in] index The property index.
177 * @return The name of the property at the given index.
179 const std::string& GetPropertyName( Property::Index index ) const;
181 public: // Not intended for application developers
184 * @brief This constructor is used by Dali Get() method.
186 * @param [in] typeInfo A pointer to a Dali resource
188 explicit DALI_INTERNAL TypeInfo(Internal::TypeInfo* typeInfo);
194 #endif // __DALI_TYPE_INFO_H__