2 * Copyright (c) 2016 Samsung Electronics Co., Ltd All Rights Reserved
4 * Licensed under the Apache License, Version 2.0 (the License);
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an AS IS BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
18 using System.Collections.Generic;
22 namespace ElmSharp.Wearable
25 /// The Rotary Selector is a widget to display a selector and multiple items surrounding the selector.
26 /// And an item can be selected by rotary event or user item click.
27 /// Inherits <see cref="Layout"/>.
29 public class RotarySelector : Layout
31 const string IconPartName = "selector,icon";
32 const string ContentPartName = "selector,content";
33 const string BgPartName = "selector,bg_image";
35 const string ItemSelectedEventName = "item,selected";
36 const string ItemClickedEventName = "item,clicked";
39 /// Selected will be triggered when selected an item.
41 public event EventHandler<RotarySelectorItemEventArgs> Selected;
44 /// Clicked will be triggered when selecting again the alredy selected item or selecting a selector.
46 public event EventHandler<RotarySelectorItemEventArgs> Clicked;
48 SmartEvent<PointerEventArgs> _selectedEvent;
49 SmartEvent<PointerEventArgs> _clickedEvent;
53 /// Gets the rotary selector item list of a rotary selector object.
55 public IList<RotarySelectorItem> Items { get; private set; }
58 /// Creates and initializes a new instance of the Rotary Selector class.
60 /// <param name="parent">The parent of new Rotary Selector instance</param>
61 public RotarySelector(EvasObject parent) : base(parent)
63 Items = new RotarySelectorList(this);
65 _selectedEvent = new SmartEvent<PointerEventArgs>(this, "item,selected", (d, o, info) => new PointerEventArgs { Pointer = info });
66 _clickedEvent = new SmartEvent<PointerEventArgs>(this, "item,clicked", (d, o, info) => new PointerEventArgs { Pointer = info });
67 _selectedEvent.On += (s, e) =>
69 RotarySelectorItem selected = Items.FirstOrDefault(i => i.Handle == e.Pointer);
70 Selected?.Invoke(this, new RotarySelectorItemEventArgs { Item = selected });
73 _clickedEvent.On += (s, e) =>
75 RotarySelectorItem selected = Items.FirstOrDefault(i => i.Handle == e.Pointer);
76 Clicked?.Invoke(this, new RotarySelectorItemEventArgs { Item = selected });
81 /// Sets or gets the selected item of a rotary selector object.
83 public RotarySelectorItem SelectedItem
87 IntPtr selectedPtr = Interop.Eext.eext_rotary_selector_selected_item_get(this);
88 if (selectedPtr == IntPtr.Zero) return null;
89 RotarySelectorItem item = Items.FirstOrDefault(i => i.Handle == selectedPtr);
95 if (!Items.Contains(value)) return;
96 Interop.Eext.eext_rotary_selector_selected_item_set(this, value.Handle);
100 void setPart(ref Image prop, string partName, State state, Image img)
102 if (prop == img) return;
106 Interop.Eext.eext_rotary_selector_part_content_set(this, partName, (int)state, prop);
109 void setPart(ref Color prop, string partName, State state, Color color)
111 if (prop == color) return;
114 Interop.Eext.eext_rotary_selector_part_color_set(this, partName, (int)state, color.R, color.G, color.B, color.A);
119 /// Sets or gets the background image of a rotary selector object.
121 public Image BackgroundImage { set => setPart(ref _normalBgImage, BgPartName, State.Normal, value); get => _normalBgImage; }
123 protected override IntPtr CreateHandle(EvasObject parent)
125 IntPtr ptr = Interop.Eext.eext_rotary_selector_add(parent);
126 Interop.Eext.eext_rotary_object_event_activated_set(ptr, true);