[C#/UWP] Image 엘리먼트 : Stretch 속성 사용하기

■ Image 엘리먼트의 Stretch 속성을 사용하는 방법을 보여준다.

▶ 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:muxc="using:Microsoft.UI.Xaml.Controls"
    Background="{ThemeResource ApplicationPageBackgroundThemeBrush}"
    FontFamily="나눔고딕코딩"
    FontSize="16">
    <Grid>
        <Grid
            HorizontalAlignment="Center"
            VerticalAlignment="Center">
            <Grid.ColumnDefinitions>
                <ColumnDefinition Width="Auto" />
                <ColumnDefinition Width="50"   />
                <ColumnDefinition Width="Auto" />
            </Grid.ColumnDefinitions>
            <Image Name="image" Grid.Column="0"
                Width="300"
                Height="300"
                Stretch="None"
                Source="/IMAGE/sample.png" />
            <muxc:RadioButtons Grid.Column="2"
                Header="이미지 Stretch 모드">
                <RadioButton
                    GroupName="Stretch"
                    Content="None"
                    Checked="stretchRadioButton_Checked"
                    IsChecked="True" />
                <RadioButton
                    GroupName="Stretch"
                    Content="Fill"
                    Checked="stretchRadioButton_Checked" />
                <RadioButton
                    GroupName="Stretch"
                    Content="Uniform"
                    Checked="stretchRadioButton_Checked" />
                <RadioButton
                    GroupName="Stretch"
                    Content="UniformToFill"
                    Checked="stretchRadioButton_Checked" />
            </muxc:RadioButtons>
        </Grid>
    </Grid>
</Page>

<Page x:Class="TestProject.MainPage"

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

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

xmlns:muxc="using:Microsoft.UI.Xaml.Controls"

Background="{ThemeResource ApplicationPageBackgroundThemeBrush}"

FontFamily="나눔고딕코딩"

FontSize="16">

<Grid>

<Grid

HorizontalAlignment="Center"

VerticalAlignment="Center">

<Grid.ColumnDefinitions>

</Grid.ColumnDefinitions>

<Image Name="image" Grid.Column="0"

Width="300"

Height="300"

Stretch="None"

Source="/IMAGE/sample.png" />

<muxc:RadioButtons Grid.Column="2"

Header="이미지 Stretch 모드">

<RadioButton

GroupName="Stretch"

Content="None"

Checked="stretchRadioButton_Checked"

IsChecked="True" />

<RadioButton

GroupName="Stretch"

Content="Fill"

Checked="stretchRadioButton_Checked" />

<RadioButton

GroupName="Stretch"

Content="Uniform"

Checked="stretchRadioButton_Checked" />

<RadioButton

GroupName="Stretch"

Content="UniformToFill"

Checked="stretchRadioButton_Checked" />

</muxc:RadioButtons>

</Grid>

</Page>

▶ MainPage.xaml.cs


using System;
using Windows.Foundation;
using Windows.Graphics.Display;
using Windows.UI.ViewManagement;
using Windows.UI.Xaml;
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();

            #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 = "Image 엘리먼트 : Stretch 속성 사용하기";

            #endregion
        }

        #endregion

        //////////////////////////////////////////////////////////////////////////////////////////////////// Method
        ////////////////////////////////////////////////////////////////////////////////////////// Private

        #region Stretch 라디오 버튼 체크시 처리하기 - stretchRadioButton_Checked(sender, e)

        /// <summary>
        /// Stretch 라디오 버튼 체크시 처리하기
        /// </summary>
        /// <param name="sender">이벤트 발생자</param>
        /// <param name="e">이벤트 인자</param>
        private void stretchRadioButton_Checked(object sender, RoutedEventArgs e)
        {
            if(this.image != null)
            {
                string stretchString = (sender as RadioButton).Content.ToString();

                Stretch stretch = (Stretch)Enum.Parse(typeof(Stretch), stretchString);

                this.image.Stretch = stretch;
            }
        }

        #endregion
    }
}

using System;

using Windows.Foundation;

using Windows.Graphics.Display;

using Windows.UI.ViewManagement;

using Windows.UI.Xaml;

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();

#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 = "Image 엘리먼트 : Stretch 속성 사용하기";

#endregion

}

#endregion

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

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

#region Stretch 라디오 버튼 체크시 처리하기 - stretchRadioButton_Checked(sender, e)

/// <summary>

/// Stretch 라디오 버튼 체크시 처리하기

/// </summary>

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

/// <param name="e">이벤트 인자</param>

private void stretchRadioButton_Checked(object sender, RoutedEventArgs e)

{

if(this.image != null)

{

string stretchString = (sender as RadioButton).Content.ToString();

Stretch stretch = (Stretch)Enum.Parse(typeof(Stretch), stretchString);

this.image.Stretch = stretch;

}

#endregion

}

TestProject.zip