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RotarySelector.cs
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RotarySelector.cs
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/*
* Copyright (c) 2016 Samsung Electronics Co., Ltd All Rights Reserved
*
* Licensed under the Apache License, Version 2.0 (the License);
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an AS IS BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace ElmSharp.Wearable
{
/// <summary>
/// The RotarySelector is a widget to display a selector and multiple items surrounding the selector.
/// An item can be selected by the Rotary event or user item click.
/// Inherits <see cref="Layout"/>.
/// </summary>
/// <since_tizen> preview </since_tizen>
public class RotarySelector : Layout
{
const string IconPartName = "selector,icon";
const string ContentPartName = "selector,content";
const string BgPartName = "selector,bg_image";
const string ItemSelectedEventName = "item,selected";
const string ItemClickedEventName = "item,clicked";
/// <summary>
/// Selected will be triggered when selecting an item.
/// </summary>
/// <since_tizen> preview </since_tizen>
public event EventHandler<RotarySelectorItemEventArgs> Selected;
/// <summary>
/// Clicked will be triggered when selecting again the already selected item or selecting a selector.
/// </summary>
/// <since_tizen> preview </since_tizen>
public event EventHandler<RotarySelectorItemEventArgs> Clicked;
SmartEvent<PointerEventArgs> _selectedEvent;
SmartEvent<PointerEventArgs> _clickedEvent;
Image _normalBgImage;
/// <summary>
/// Gets the rotary selector item list of a rotary selector object.
/// </summary>
/// <since_tizen> preview </since_tizen>
public IList<RotarySelectorItem> Items { get; private set; }
/// <summary>
/// Creates and initializes a new instance of the Rotary Selector class.
/// </summary>
/// <param name="parent">The parent of the new Rotary Selector instance.</param>
/// <since_tizen> preview </since_tizen>
public RotarySelector(EvasObject parent) : base(parent)
{
Items = new RotarySelectorList(this);
_selectedEvent = new SmartEvent<PointerEventArgs>(this, "item,selected", (d, o, info) => new PointerEventArgs { Pointer = info });
_clickedEvent = new SmartEvent<PointerEventArgs>(this, "item,clicked", (d, o, info) => new PointerEventArgs { Pointer = info });
_selectedEvent.On += (s, e) =>
{
RotarySelectorItem selected = Items.FirstOrDefault(i => i.Handle == e.Pointer);
Selected?.Invoke(this, new RotarySelectorItemEventArgs { Item = selected });
};
_clickedEvent.On += (s, e) =>
{
RotarySelectorItem selected = Items.FirstOrDefault(i => i.Handle == e.Pointer);
Clicked?.Invoke(this, new RotarySelectorItemEventArgs { Item = selected });
};
}
/// <summary>
/// Sets or gets the selected item of a rotary selector object.
/// </summary>
/// <since_tizen> preview </since_tizen>
public RotarySelectorItem SelectedItem
{
get
{
IntPtr selectedPtr = Interop.Eext.eext_rotary_selector_selected_item_get(this);
if (selectedPtr == IntPtr.Zero) return null;
RotarySelectorItem item = Items.FirstOrDefault(i => i.Handle == selectedPtr);
return item;
}
set
{
if (!Items.Contains(value)) return;
Interop.Eext.eext_rotary_selector_selected_item_set(this, value.Handle);
}
}
void setPart(ref Image prop, string partName, State state, Image img)
{
if (prop == img) return;
prop = img;
if (this != null)
{
Interop.Eext.eext_rotary_selector_part_content_set(this, partName, (int)state, prop);
}
}
void setPart(ref Color prop, string partName, State state, Color color)
{
if (prop == color) return;
if (this != null)
{
Interop.Eext.eext_rotary_selector_part_color_set(this, partName, (int)state, color.R, color.G, color.B, color.A);
}
}
/// <summary>
/// Sets or gets the background image of a rotary selector object.
/// </summary>
/// <since_tizen> preview </since_tizen>
public Image BackgroundImage { set => setPart(ref _normalBgImage, BgPartName, State.Normal, value); get => _normalBgImage; }
/// <summary>
/// Creates a widget handle.
/// </summary>
/// <param name="parent">Parent EvasObject.</param>
/// <returns>Handle IntPtr.</returns>
/// <since_tizen> preview </since_tizen>
protected override IntPtr CreateHandle(EvasObject parent)
{
IntPtr ptr = Interop.Eext.eext_rotary_selector_add(parent);
Interop.Eext.eext_rotary_object_event_activated_set(ptr, true);
return ptr;
}
internal enum State
{
Normal,
Pressed
}
}
}