/*
* 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
{
///
/// The Background is a widget that use for setting (solid) background decorations to a window (unless it has transparency enabled)
/// or to any container object.
///
public class Background : Layout
{
///
/// Creates and initializes a new instance of the Background class.
///
/// The EvasObject to which the new Background will be attached as a child.
public Background(EvasObject parent) : base(parent)
{
Style = "transparent";
}
///
/// Sets or gets color to Background.
///
public override Color Color
{
get
{
int r = 0;
int g = 0;
int b = 0;
int a = 0;
var swallowContent = GetPartContent("elm.swallow.rectangle");
if (swallowContent != IntPtr.Zero)
{
Interop.Evas.evas_object_color_get(swallowContent, out r, out g, out b, out a);
}
return new Color(r, g, b, a);
}
set
{
var swallowContent = GetPartContent("elm.swallow.rectangle");
if (swallowContent == IntPtr.Zero)
{
Interop.Elementary.elm_bg_color_set(RealHandle, value.R, value.G, value.B);
swallowContent = GetPartContent("elm.swallow.rectangle");
}
Interop.Evas.evas_object_color_set(swallowContent, value.R, value.G, value.B, value.A);
}
}
///
/// Sets or gets image to Background.
///
public string File
{
get
{
return Interop.Elementary.BackgroundFileGet(RealHandle);
}
set
{
Interop.Elementary.elm_bg_file_set(RealHandle, value, IntPtr.Zero);
}
}
///
/// Sets or gets the mode of display for a given background widget's image.
///
///
/// This sets how the background widget will display its image.
/// This will only work if the File was previously set with an image file on obj.
/// The image can be display tiled, scaled, centered or stretched. scaled by default.
///
public BackgroundOptions BackgroundOption
{
get
{
return (BackgroundOptions)Interop.Elementary.elm_bg_option_get(RealHandle);
}
set
{
Interop.Elementary.elm_bg_option_set(RealHandle, (Interop.Elementary.BackgroundOptions)value);
}
}
protected override IntPtr CreateHandle(EvasObject parent)
{
IntPtr handle = Interop.Elementary.elm_layout_add(parent.Handle);
Interop.Elementary.elm_layout_theme_set(handle, "layout", "elm_widget", "default");
RealHandle = Interop.Elementary.elm_bg_add(handle);
Interop.Elementary.elm_object_part_content_set(handle, "elm.swallow.content", RealHandle);
return handle;
}
}
///
/// Enumeration for the background type.
///
public enum BackgroundOptions
{
///
/// Centers the background image
///
Center,
///
/// Scales the background image, retaining the aspect ratio
///
Scale,
///
/// Stretches the background image to fill the UI component's area.
///
Stretch,
///
/// Tiles the background image at its original size
///
Tile
}
}