[C#/MAUI/.NET6] DrawingView 클래스 : DrawingLineCompleted 이벤트를 사용해 선 그리기 완료시 처리하기

TestProject.zip

0.15MB

▶ MainPage.xaml

<?xml version="1.0" encoding="utf-8" ?>
<ContentPage x:Class="TestProject.MainPage"
    xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
    xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
    xmlns:toolkit="http://schemas.microsoft.com/dotnet/2022/maui/toolkit">
    <Grid
        Margin="10"
        RowDefinitions="*,10,*">
        <toolkit:DrawingView x:Name="drawingView" Grid.Row="0"
            Margin="10"
            Background="Beige"
            IsMultiLineModeEnabled="true"
            ShouldClearOnFinish="false"
            LineWidth="5"
            LineColor="Blue" />
        <Image x:Name="image" Grid.Row="2" />
    </Grid>
</ContentPage>

 

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▶ MainPage.xaml.cs

using System.Collections.ObjectModel;

using CommunityToolkit.Maui.Core;

namespace TestProject;

/// <summary>
/// 메인 페이지
/// </summary>
public partial class MainPage : ContentPage
{
    //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor
    ////////////////////////////////////////////////////////////////////////////////////////// Public

    #region 생성자 - MainPage()

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

        this.drawingView.Lines = new ObservableCollection<IDrawingLine>();

        this.drawingView.DrawingLineCompleted += drawingView_DrawingLineCompleted;
    }

    #endregion

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

    #region 드로잉 뷰 선 그리기 완료시 처리하기 - drawingView_DrawingLineCompleted(sender, e)

    /// <summary>
    /// 드로잉 뷰 선 그리기 완료시 처리하기
    /// </summary>
    /// <param name="sender">이벤트 발생자</param>
    /// <param name="e">이벤트 인자</param>
    private async void drawingView_DrawingLineCompleted(object sender, DrawingLineCompletedEventArgs e)
    {
        Stream stream = await e.LastDrawingLine.GetImageStream(this.image.Width, this.image.Height, Colors.Gray.AsPaint());

        this.image.Source = ImageSource.FromStream(() => stream);
    }

    #endregion
}

 

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▶ MauiProgram.cs

using CommunityToolkit.Maui;

namespace TestProject;

/// <summary>
/// MAUI 프로그램
/// </summary>
public static class MauiProgram
{
    //////////////////////////////////////////////////////////////////////////////////////////////////// Method
    ////////////////////////////////////////////////////////////////////////////////////////// Static
    //////////////////////////////////////////////////////////////////////////////// Public

    #region MAUI 앱 생성하기 - CreateMauiApp()

    /// <summary>
    /// MAUI 앱 생성하기
    /// </summary>
    /// <returns>MAUI 앱</returns>
    public static MauiApp CreateMauiApp()
    {
        MauiAppBuilder builder = MauiApp.CreateBuilder();

        builder
            .UseMauiApp<App>()
            .UseMauiCommunityToolkit()
            .ConfigureFonts
            (
                fontCollection =>
                {
                    fontCollection.AddFont("OpenSans-Regular.ttf" , "OpenSansRegular" );
                    fontCollection.AddFont("OpenSans-Semibold.ttf", "OpenSansSemibold");
                }
            );

        return builder.Build();
    }

    #endregion
}