■ Graphics 클래스의 PixelOffsetMode 속성을 사용하는 방법을 보여준다.
▶ MainForm.cs
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using System; using System.Drawing; using System.Drawing.Drawing2D; using System.Windows.Forms; namespace TestProject { /// <summary> /// 메인 폼 /// </summary> public partial class MainForm : Form { //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - MainForm() /// <summary> /// 생성자 /// </summary> public MainForm() { InitializeComponent(); #region 이벤트를 설정한다. Load += Form_Load; this.modeComboBox.SelectedIndexChanged += modeComboBox_SelectedIndexChanged; #endregion } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Private //////////////////////////////////////////////////////////////////////////////// Event #region 폼 로드시 처리하기 - Form_Load(sender, e) /// <summary> /// 폼 로드시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void Form_Load(object sender, EventArgs e) { this.modeComboBox.SelectedIndex = 0; } #endregion #region 픽셀 오프셋 모드 콤보 박스 선택 인덱스 변경시 처리하기 - modeComboBox_SelectedIndexChanged(sender, e) /// <summary> /// 픽셀 오프셋 모드 콤보 박스 선택 인덱스 변경시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void modeComboBox_SelectedIndexChanged(object sender, EventArgs e) { PixelOffsetMode mode = PixelOffsetMode.Default; switch(this.modeComboBox.Text) { case "Half" : mode = PixelOffsetMode.Half; break; case "HighQuality" : mode = PixelOffsetMode.HighQuality; break; case "HighSpeed" : mode = PixelOffsetMode.HighSpeed; break; case "None" : mode = PixelOffsetMode.None; break; } this.targetPictureBox.Image = GetBitmap(this.sourcePictureBox.Image, 20, mode); } #endregion //////////////////////////////////////////////////////////////////////////////// Function #region 비트맵 구하기 - GetBitmap(sourceImage, scale, mode) /// <summary> /// 비트맵 구하기 /// </summary> /// <param name="sourceImage"소스 이미지></param> /// <param name="scale">스케일</param> /// <param name="mode">픽셀 오프셋 모드</param> /// <returns>비트맵</returns> private Bitmap GetBitmap(Image sourceImage, int scale, PixelOffsetMode mode) { int width = scale * sourceImage.Width; int height = scale * sourceImage.Height; Bitmap bitmap = new Bitmap(width, height); using(Graphics graphics = Graphics.FromImage(bitmap)) { graphics.Clear(Color.Yellow); Rectangle sourceRectangle = new Rectangle(0, 0, sourceImage.Width, sourceImage.Height); Rectangle targetRectangle = new Rectangle(0, 0, width, height); graphics.PixelOffsetMode = mode; graphics.InterpolationMode = InterpolationMode.NearestNeighbor; graphics.DrawImage(sourceImage, targetRectangle, sourceRectangle, GraphicsUnit.Pixel); } return bitmap; } #endregion } } |
