[C#/UWP] ExpressionAnimation 클래스 사용하기

TestProject.zip

0.02MB

▶ DoubleToThicknessConverter.cs

using System;
using Windows.UI.Xaml;
using Windows.UI.Xaml.Data;

namespace TestProject
{
    /// <summary>
    /// 실수→두께 변환자
    /// </summary>
    public class DoubleToThicknessConverter : IValueConverter
    {
        //////////////////////////////////////////////////////////////////////////////////////////////////// Method
        ////////////////////////////////////////////////////////////////////////////////////////// Public

        #region 변환하기 - Convert(sourceValue, targetType, parameter, language)

        /// <summary>
        /// 변환하기
        /// </summary>
        /// <param name="sourceValue">소스 값</param>
        /// <param name="targetType">타겟 타입</param>
        /// <param name="parameter">매개 변수</param>
        /// <param name="language">언어</param>
        /// <returns>변환 값</returns>
        public object Convert(object sourceValue, Type targetType, object parameter, string language)
        {
            if(sourceValue is double?)
            {
                return new Thickness((double)sourceValue);
            }

            return false;
        }

        #endregion
        #region 역변환하기 - ConvertBack(sourceValue, targetType, parameter, language)

        /// <summary>
        /// 역변환하기
        /// </summary>
        /// <param name="sourceValue">소스 값</param>
        /// <param name="targetType">타겟 타입</param>
        /// <param name="parameter">매개 변수</param>
        /// <param name="language">언어</param>
        /// <returns>역변환 값</returns>
        public object ConvertBack(object sourceValue, Type targetType, object parameter, string language)
        {
            throw new NotImplementedException();
        }

        #endregion
    }
}

 

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▶ 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"
    xmlns:local="using:TestProject"
    Background="{ThemeResource ApplicationPageBackgroundThemeBrush}"
    FontFamily="나눔고딕코딩"
    FontSize="16">
    <Page.Resources>
        <local:DoubleToThicknessConverter x:Key="DoubleToThicknessConverterKey" />
    </Page.Resources>
    <Grid
        Margin="50"
        Loaded="grid_Loaded">
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="*"    />
            <ColumnDefinition Width="50"   />
            <ColumnDefinition Width="Auto" />
        </Grid.ColumnDefinitions>
        <StackPanel Grid.Column="0">
            <Grid HorizontalAlignment="Left">
                <TextBlock Name="textBlock"
                    Margin="{x:Bind marginSlider.Value, Converter={StaticResource DoubleToThicknessConverterKey}, Mode=OneWay}"
                    Width="300"
                    TextWrapping="WrapWholeWords"
                    FontSize="{x:Bind fontSizeSlider.Value, Mode=OneWay}">
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                </TextBlock>
                <Popup Name="popup"
                    Margin="5">
                    <Grid
                        MinWidth="50"
                        MaxWidth="200"
                        MinHeight="50"
                        BorderThickness="2"
                        BorderBrush="{ThemeResource SystemControlForegroundChromeGrayBrush}"
                        Background="{ThemeResource FlyoutBackgroundThemeBrush}">
                        <TextBlock
                            Style="{ThemeResource CaptionTextBlockStyle}"
                            VerticalAlignment="Center"
                            Margin="5"
                            TextWrapping="WrapWholeWords"
                            Text="I am always right aligned center to the target." />
                    </Grid>
                </Popup>
            </Grid>
        </StackPanel>
        <StackPanel Grid.Column="2"
            MinWidth="150">
            <Slider Name="fontSizeSlider"
                Header="Change font size"
                Minimum="12"
                Maximum="24"
                Value="12" />
            <Slider Name="marginSlider"
                Header="Change text margin"
                Minimum="0"
                Maximum="100"
                Value="0" />
        </StackPanel>
    </Grid>
</Page>

 

▶ MainPage.xaml.cs

using Windows.Foundation;
using Windows.Foundation.Metadata;
using Windows.Graphics.Display;
using Windows.UI.Composition;
using Windows.UI.ViewManagement;
using Windows.UI.Xaml;
using Windows.UI.Xaml.Controls;

namespace TestProject
{
    /// <summary>
    /// 메인 페이지
    /// </summary>
    public sealed partial class MainPage : Page
    {
        //////////////////////////////////////////////////////////////////////////////////////////////////// Field
        ////////////////////////////////////////////////////////////////////////////////////////// Private

        #region Field

        /// <summary>
        /// 작성자
        /// </summary>
        private Compositor compositor = Window.Current.Compositor;

        #endregion

        //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor
        ////////////////////////////////////////////////////////////////////////////////////////// Public

        #region 생성자 - MainPage()

        /// <summary>
        /// 생성자
        /// </summary>
        public MainPage()
        {
            InitializeComponent();

            #region 윈도우 크기를 설정한다.

            double width  = 800d;
            double height = 600d;

            double dpi = (double)DisplayInformation.GetForCurrentView().LogicalDpi;

            ApplicationView.PreferredLaunchWindowingMode = ApplicationViewWindowingMode.PreferredLaunchViewSize;

            Size windowSize = new Size(width * 96d / dpi, height * 96d / dpi);

            ApplicationView.PreferredLaunchViewSize = windowSize;

            Window.Current.Activate();

            ApplicationView.GetForCurrentView().TryResizeView(windowSize);

            #endregion
            #region 윈도우 제목을 설정한다.

            ApplicationView.GetForCurrentView().Title = "ExpressionAnimation 클래스 사용하기";

            #endregion
        }

        #endregion

        //////////////////////////////////////////////////////////////////////////////////////////////////// Method
        ////////////////////////////////////////////////////////////////////////////////////////// Private
        //////////////////////////////////////////////////////////////////////////////// Event

        #region 그리드 로드시 처리하기 - grid_Loaded(sender, e)

        /// <summary>
        /// 그리드 로드시 처리하기
        /// </summary>
        /// <param name="sender">이벤트 발생자</param>
        /// <param name="e">이벤트 인자</param>
        private void grid_Loaded(object sender, RoutedEventArgs e)
        {
            if(!ApiInformation.IsApiContractPresent("Windows.Foundation.UniversalApiContract", 8))
            {
                return;
            }

            ExpressionAnimation animation = this.compositor.CreateExpressionAnimation();

            animation.Expression = "Vector3(textBlock.ActualOffset.X + textBlock.ActualSize.X, textBlock.ActualOffset.Y + textBlock.ActualSize.Y / 2 - 25, 0)";
            animation.Target     = "Translation";

            animation.SetExpressionReferenceParameter("textBlock", this.textBlock);

            this.popup.StartAnimation(animation);

            this.popup.IsOpen = true;
        }

        #endregion
    }
}