2 // Open Service Platform
3 // Copyright (c) 2012-2013 Samsung Electronics Co., Ltd.
5 // Licensed under the Apache License, Version 2.0 (the License);
6 // you may not use this file except in compliance with the License.
7 // You may obtain a copy of the License at
9 // http://www.apache.org/licenses/LICENSE-2.0/
11 // Unless required by applicable law or agreed to in writing, software
12 // distributed under the License is distributed on an "AS IS" BASIS,
13 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 // See the License for the specific language governing permissions and
15 // limitations under the License.
20 * @file FUiCtrlIGroupedListViewItemProviderF.h
21 * @brief This is the header file for the %IGroupedListViewItemProviderF interface.
23 * This header file contains the declarations of the %IGroupedListViewItemProviderF interface. @n
24 * If an event is generated, a method of this interface is called. @n
25 * Therefore, if an application performs jobs related to the item events, it uses the methods of this interface.
28 #ifndef _FUI_CTRL_IGROUPED_LIST_VIEW_ITEM_PROVIDERF_H_
29 #define _FUI_CTRL_IGROUPED_LIST_VIEW_ITEM_PROVIDERF_H_
31 #include <FUiCtrlGroupItem.h>
32 #include <FUiCtrlListItemBase.h>
34 namespace Tizen {namespace Ui { namespace Controls
38 * @interface IGroupedListViewItemProviderF
39 * @brief This interface implements the provider for the events generated by the %GroupedListView control.
43 * The %IGroupedListViewItemProviderF interface is the interface for handling GroupedListView items.
44 * The class that handles list items implements this interface, and the instance created using the GroupedListView::Construct() method.
46 * For more information on the class features, see <a href="../org.tizen.native.appprogramming/html/guide/ui/implementing_listviews.htm">ListViews</a>.
48 class _OSP_EXPORT_ IGroupedListViewItemProviderF
53 * This polymorphic destructor should be overridden if required. @n
54 * This way, the destructors of the derived classes are called
55 * when the destructor of this interface is called.
59 virtual ~IGroupedListViewItemProviderF(void) {}
62 * Gets the total number of groups.
66 * @return The total number of groups
67 * @remarks This method must be implemented so that it returns the total number of groups in the GroupedListView control.
69 virtual int GetGroupCount(void) = 0;
72 * Gets the total number of items in a specified group.
76 * @return The total number of items in the specified group
77 * @param[in] groupIndex The index of the group
78 * @remarks This method must be implemented so that it returns the total number of items for the specified group in the GroupedListView control.
80 virtual int GetItemCount(int groupIndex) = 0;
83 * Creates the group item for a specified index from the item provider.
87 * @return A group item of the GroupedListView control
88 * @param[in] groupIndex The index of the group
89 * @param[in] itemWidth The width of the item
91 * - An application that uses the GroupedListView control must implement this method. This method is expected to return a group item that is
92 * allocated on a heap memory.
93 * - Note that when the item is not required, the GroupedListView control calls IGroupedListViewItemProvider::DeleteGroupItem() and the
94 * application deallocates the item.
95 * - The returned item should not be a null pointer.
97 virtual Tizen::Ui::Controls::GroupItem* CreateGroupItem(int groupIndex, float itemWidth) = 0;
100 * Deletes a specified group item.
104 * @return @c true if the item is deallocated by this method, @n
106 * @param[in] groupIndex The index of the group
107 * @param[in] pItem The pointer to GroupItem to delete
108 * @param[in] itemWidth The width of the item
110 * - An application that uses the GroupedListView control must implement this method.
111 * - Using this method, an application can deallocate the item.
112 * - If an application deallocates the item, this method must return @c true. This notifies the %GroupedListView control not to release the
113 * item. Otherwise, the item is deallocated by the %GroupedListView control.
116 virtual bool DeleteGroupItem(int groupIndex, Tizen::Ui::Controls::GroupItem* pItem, float itemWidth) = 0;
119 * Creates a specified item.
123 * @return An item of the list
124 * @param[in] groupIndex The index of the group
125 * @param[in] itemIndex The index of the item
126 * @param[in] itemWidth The width of the item
128 * - An application that uses the GroupedListView control must implement this method.
129 * - This method is expected to return an item that is allocated on a heap memory.
130 * - The returned item can be a simple or custom item.
131 * - Note that when the item is not required, the %GroupedListView control calls IGroupedListViewItemProvider::DeleteItem() and the application
132 * deallocates the item.
135 virtual Tizen::Ui::Controls::ListItemBase* CreateItem(int groupIndex, int itemIndex, float itemWidth) = 0;
138 * Deletes a specified item.
142 * @return @c true if the item is deallocated by this method, @n
144 * @param[in] groupIndex The index of the group
145 * @param[in] itemIndex The index of the item
146 * @param[in] pItem The pointer to ListItemBase to delete
147 * @param[in] itemWidth The width of the item
149 * - An application that uses the GroupedListView control must implement this method.
150 * - Using this method, an application can deallocate the item.
151 * - If the application deallocates the item, this method must return @c true. This notifies the %GroupedListView control not to release the
152 * item. Otherwise, the item is deallocated by the %GroupedListView control.
155 virtual bool DeleteItem(int groupIndex, int itemIndex, Tizen::Ui::Controls::ListItemBase* pItem, float itemWidth) = 0;
158 * Checks whether the item can be reordered.
162 * @return @c true if the item can be reordered, @n
164 * @param[in] groupIndexFrom The source group index of the item
165 * @param[in] groupIndexTo The target group index of the item
167 virtual bool IsReorderable(int groupIndexFrom, int groupIndexTo);
171 // The following methods are reserved and may change its name at any time without prior notice.
173 virtual void IGroupedListViewItemProvider_Reserved1(void) {}
174 virtual void IGroupedListViewItemProvider_Reserved2(void) {}
175 virtual void IGroupedListViewItemProvider_Reserved3(void) {}
176 }; // IGroupedListViewItemProviderF
178 }}} // Tizen::Ui::Controls
180 #endif // _FUI_CTRL_IGROUPED_LIST_VIEW_ITEM_PROVIDERF_H_