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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;
namespace ElmSharp
{
/// <summary>
/// This is a container widget that takes a standard Edje design file and wraps it very thinly in a widget.
/// Inherits Widget
/// </summary>
public class Layout : Widget
{
SmartEvent _languageChanged;
SmartEvent _themeChanged;
IntPtr _edjeHandle;
/// <summary>
/// Creates and initializes a new instance of Layout class.
/// </summary>
/// <param name="parent">The parent is a given container which will be attached by Layout as a child. It's <see cref="EvasObject"/> type.</param>
public Layout(EvasObject parent) : base(parent)
{
_languageChanged = new SmartEvent(this, this.RealHandle, "language,changed");
_languageChanged.On += (s, e) =>
{
LanguageChanged?.Invoke(this, EventArgs.Empty);
};
_themeChanged = new SmartEvent(this, this.RealHandle, "theme,changed");
_themeChanged.On += (s, e) =>
{
ThemeChanged?.Invoke(this, EventArgs.Empty);
};
}
/// <summary>
/// LanguageChanged will be triggered when the program's language is changed.
/// </summary>
public event EventHandler LanguageChanged;
/// <summary>
/// ThemeChanged will be triggered when the theme is changed.
/// </summary>
public event EventHandler ThemeChanged;
/// <summary>
/// Gets the edje layout.
/// </summary>
public EdjeObject EdjeObject
{
get
{
if (_edjeHandle == IntPtr.Zero)
_edjeHandle = Interop.Elementary.elm_layout_edje_get(RealHandle);
return new EdjeObject(_edjeHandle);
}
}
/// <summary>
/// Sets the edje group from the elementary theme that is used as a layout.
/// </summary>
/// <param name="klass">The class of the group</param>
/// <param name="group">The group</param>
/// <param name="style">The style to use</param>
public void SetTheme(string klass, string group, string style)
{
Interop.Elementary.elm_layout_theme_set(RealHandle, klass, group, style);
}
/// <summary>
/// Sets the file that is used as a layout.
/// </summary>
/// <param name="file">The path to the file (edj) that is used as a layout</param>
/// <param name="group">The group that the layout belongs to in the edje file</param>
public void SetFile(string file, string group)
{
Interop.Elementary.elm_layout_file_set(RealHandle, file, group);
}
/// <summary>
/// Sets the back ground color of layout
/// </summary>
public override Color BackgroundColor
{
set
{
if (value.IsDefault)
{
string part = ClassName.ToLower().Replace("elm_", "") + "/" + "bg";
EdjeObject.DeleteColorClass(part);
}
else
{
SetPartColor("bg", value);
}
_backgroundColor = value;
}
}
/// <summary>
/// Sets the vertical text alignment of layout's text part
/// </summary>
/// <remarks>
/// API, elm_layout_text_valign_set, is an internal API only in Tizen. Avalilable since Tizen_4.0.
/// </remarks>
public virtual void SetVerticalTextAlignment(string part, double valign)
{
Interop.Elementary.elm_layout_text_valign_set(RealHandle, part, valign);
}
/// <summary>
/// Gets the vertical text alignment of layout's text part
/// </summary>
/// <remarks>
/// API, elm_layout_text_valign_get, is internal API only in Tizen. Avalilable since Tizen_4.0.
/// </remarks>
public virtual double GetVerticalTextAlignment(string part)
{
return Interop.Elementary.elm_layout_text_valign_get(RealHandle, part);
}
/// <summary>
/// Sets the content at a part of a given container widget.
/// </summary>
/// <param name="parent">The parent is a given container which will be attached by Layout as a child. It's <see cref="EvasObject"/> type.</param>
/// <returns>The new object, otherwise null if it cannot be created</returns>
protected override IntPtr CreateHandle(EvasObject parent)
{
return Interop.Elementary.elm_layout_add(parent.Handle);
}
}
}
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