■ CompositionTarget 클래스 : Rendering 정적 이벤트 사용하기

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TestProject.zip


MainPage.xaml

 

 

<Page x:Class="TestProject.MainPage"

    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">

    <Grid>

        <Grid.Background>

            <SolidColorBrush x:Name="gridBackgroundBrush" />

        </Grid.Background>

        <TextBlock

            HorizontalAlignment="Center"

            VerticalAlignment="Center"

            FontFamily="나눔고딕코딩"

            FontSize="96"

            FontWeight="Bold"

            Text="안녕하세요">

            <TextBlock.Foreground>

                <SolidColorBrush x:Name="textBlockBackgroundBrush" />

            </TextBlock.Foreground>

        </TextBlock>

    </Grid>

</Page>

 

 

MainPage.xaml.cs

 

 

using Windows.UI;

using Windows.UI.Xaml.Controls;

using Windows.UI.Xaml.Media;

 

namespace TestProject

{

    /// <summary>

    /// 메인 페이지

    /// </summary>

    public sealed partial class MainPage : Page

    {

        //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor

        ////////////////////////////////////////////////////////////////////////////////////////// Public

 

        #region 생성자 - MainPage()

 

        /// <summary>

        /// 생성자

        /// </summary>

        public MainPage()

        {

            InitializeComponent();

 

            CompositionTarget.Rendering += CompositionTarget_Rendering;

        }

 

        #endregion

 

        //////////////////////////////////////////////////////////////////////////////////////////////////// Method

        ////////////////////////////////////////////////////////////////////////////////////////// Private

 

        #region 구성 타겟 렌더링시 처리하기 - CompositionTarget_Rendering(sender, e)

 

        /// <summary>

        /// 구성 타겟 렌더링시 처리하기

        /// </summary>

        /// <param name="sender">이벤트 발생자</param>

        /// <param name="e">이벤트 인자</param>

        private void CompositionTarget_Rendering(object sender, object e)

        {

            RenderingEventArgs renderingEventArgs = e as RenderingEventArgs;

 

            double t = (0.25 * renderingEventArgs.RenderingTime.TotalSeconds) % 1;

 

            t = t < 0.5 ? 2 * t : 2 - 2 * t;

 

            // 배경색

            byte backgroundGrayscale = (byte)(255 * t);

 

            this.gridBackgroundBrush.Color = Color.FromArgb(255, backgroundGrayscale, backgroundGrayscale, backgroundGrayscale);

 

            // 전경색

            byte foregroundGrayscale = (byte)(255 - backgroundGrayscale);

 

            this.textBlockBackgroundBrush.Color = Color.FromArgb(255, foregroundGrayscale, foregroundGrayscale, foregroundGrayscale);

        }

 

        #endregion

    }

}

 

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Posted by 사용자 icodebroker