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using System;
using EColor = ElmSharp.Color;
namespace Xamarin.Forms.Platform.Tizen
{
/// <summary>
/// Renderer of ContentPage.
/// </summary>
public class ContentPageRenderer : VisualElementRenderer<ContentPage>
{
/// <summary>
/// Native control which holds the contents.
/// </summary>
Native.ContentPage _page;
/// <summary>
/// Default constructor.
/// </summary>
public ContentPageRenderer()
{
RegisterPropertyHandler(Page.BackgroundImageProperty, UpdateBackgroundImage);
RegisterPropertyHandler(Page.TitleProperty, UpdateTitle);
}
protected override void OnElementChanged(ElementChangedEventArgs<ContentPage> e)
{
if (null == _page)
{
_page = new Native.ContentPage(Forms.Context.MainWindow);
_page.LayoutUpdated += new EventHandler<Native.LayoutEventArgs>(OnLayoutUpdated);
SetNativeControl(_page);
}
base.OnElementChanged(e);
}
protected override void UpdateBackgroundColor()
{
// base.UpdateBackgroundColor() is not called on purpose, we don't want the regular background setting
if (Element.BackgroundColor.IsDefault || Element.BackgroundColor.A == 0)
_page.Color = EColor.Transparent;
else
_page.Color = Element.BackgroundColor.ToNative();
}
void UpdateBackgroundImage()
{
if (string.IsNullOrWhiteSpace(Element.BackgroundImage))
_page.File = null;
else
_page.File = ResourcePath.GetPath(Element.BackgroundImage);
}
void UpdateTitle()
{
_page.Title = Element.Title;
}
void OnLayoutUpdated(object sender, Native.LayoutEventArgs e)
{
DoLayout(e);
}
}
}
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