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■ PngBitmapEncoder 클래스 : Save 메소드를 사용해 PNG 이미지 파일 저장하기

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TestProject.zip


MainWindow.xaml

 

 

<Window x:Class="TestProject.MainWindow"

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

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

    Width="800"

    Height="600"

    Title="PngBitmapEncoder 클래스 : Save 메소드를 사용해 PNG 이미지 파일 저장하기"

    FontFamily="나눔고딕코딩"

    FontSize="16">

    <Grid>

        <Image Name="image"

            HorizontalAlignment="Center"

            VerticalAlignment="Center"

            Stretch="None" />

    </Grid>

</Window>

 

 

MainWindow.xaml.cs

 

 

using System;

using System.Globalization;

using System.IO;

using System.Windows;

using System.Windows.Media;

using System.Windows.Media.Imaging;

 

namespace TestProject

{

    /// <summary>

    /// 메인 윈도우

    /// </summary>

    public partial class MainWindow : Window

    {

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

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

 

        #region 생성자 - MainWindow()

 

        /// <summary>

        /// 생성자

        /// </summary>

        public MainWindow()

        {

            InitializeComponent();

 

            Loaded += Window_Loaded;

        }

 

        #endregion

 

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

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

        //////////////////////////////////////////////////////////////////////////////// Event

 

        #region 윈도우 로드시 처리하기 - Window_Loaded(sender, e)

 

        /// <summary>

        /// 윈도우 로드시 처리하기

        /// </summary>

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

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

        private void Window_Loaded(object sender, RoutedEventArgs e)

        {

            BitmapImage bitmapImage = new BitmapImage();

 

            bitmapImage.BeginInit();

 

            bitmapImage.DecodePixelWidth = 300;

            bitmapImage.UriSource        = GetResourceURI(null, "IMAGE/sample.jpg");

 

            bitmapImage.EndInit();

 

            FormattedText formattedText = new FormattedText

            (

                "수련",

                new CultureInfo("ko-kr"),

                FlowDirection.LeftToRight,

                new Typeface

                (

                    FontFamily,

                    FontStyles.Normal,

                    FontWeights.Bold,

                    new FontStretch()

                ),

                32,

                Brushes.White

            );

 

            DrawingVisual drawingVisual = new DrawingVisual();

 

            DrawingContext drawingContext = drawingVisual.RenderOpen();

 

            drawingContext.DrawImage

            (

                bitmapImage,

                new Rect

                (

                    0,

                    0,

                    bitmapImage.Width,

                    bitmapImage.Height

                )

            );

 

            drawingContext.DrawText

            (

                formattedText,

                new Point((bitmapImage.Width - formattedText.Width) / 2 , 10)

            );

 

            drawingContext.Close();

 

            RenderTargetBitmap renderTargetBitmap = new RenderTargetBitmap

            (

                bitmapImage.PixelWidth,

                bitmapImage.PixelHeight,

                96,

                96,

                PixelFormats.Pbgra32

            );

 

            renderTargetBitmap.Render(drawingVisual);

 

            this.image.Source = renderTargetBitmap;

 

            PngBitmapEncoder pngBitmapEncoder = new PngBitmapEncoder();

            

            pngBitmapEncoder.Frames.Add(BitmapFrame.Create(renderTargetBitmap));

            

            using(Stream stream = File.Create("new.png"))

            {

                pngBitmapEncoder.Save(stream);

            }

        }

 

        #endregion

 

        //////////////////////////////////////////////////////////////////////////////// Function

 

        #region 리소스 URI 구하기 - GetResourceURI(assemblyName, resourcePath)

 

        /// <summary>

        /// 리소스 URI 구하기

        /// </summary>

        /// <param name="assemblyName">어셈블리명</param>

        /// <param name="resourcePath">리소스 경로</param>

        /// <returns>리소스 URI</returns>

        private Uri GetResourceURI(string assemblyName, string resourcePath)

        {

            if(string.IsNullOrEmpty(assemblyName))

            {

                return new Uri(string.Format("pack://application:,,,/{0}", resourcePath));

            }

            else

            {

                return new Uri(string.Format("pack://application:,,,/{0};component/{1}", assemblyName, resourcePath));

            }

        }

 

        #endregion

    }

}

 

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