1 #ifndef __DALI_TOOLKIT_ITEM_FACTORY_H__
2 #define __DALI_TOOLKIT_ITEM_FACTORY_H__
5 * Copyright (c) 2015 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.
22 #include <dali/public-api/actors/actor.h>
30 * @addtogroup dali_toolkit_controls_item_view
35 * @brief ItemFactory is for providing actors to ItemView.
37 * Each actor is identified by a unique ID, and has a linear order from 0 to GetNumberOfItems()-1.
44 class Extension; ///< Forward declare future extension interface
47 * @brief Virtual destructor.
50 DALI_EXPORT_API virtual ~ItemFactory() {};
53 * @brief Query the number of items available from the factory.
55 * The maximum available item has an ID of GetNumberOfItems() - 1.
57 * @return the number of items
59 virtual unsigned int GetNumberOfItems() = 0;
62 * @brief Create an Actor to represent a visible item.
65 * @param[in] itemId The ID of the newly visible item.
66 * @return An actor, or an uninitialized pointer if the ID is out of range.
68 virtual Actor NewItem(unsigned int itemId) = 0;
71 * @brief Notify the factory the actor representing the item is removed from ItemView.
74 * @param[in] itemId The ID of the released item.
75 * @param[in] actor The actor that represents the released item.
77 virtual void ItemReleased(unsigned int itemId, Actor actor) {};
80 * @brief Retrieve the extension for this control.
83 * @return The extension if available, NULL otherwise
85 virtual Extension* GetExtension()
94 } // namespace Toolkit
98 #endif // __DALI_TOOLKIT_ITEM_FACTORY_H__