■ PictureEdit 클래스에서 마우스를 사용해 올가미 밧줄(lasso) 사각형을 그리는 방법을 보여준다.
▶ MainForm.cs
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using System; using System.Drawing; using System.IO; using System.Windows.Forms; using DevExpress.XtraEditors; using DevExpress.XtraEditors.Controls; using DevExpress.XtraEditors.ViewInfo; namespace TestProject { /// <summary> /// 메인 폼 /// </summary> public partial class MainForm : Form { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// 소스 이미지 디렉토리 경로 /// </summary> private string sourceImageDirectoryPath = Directory.GetParent(Directory.GetCurrentDirectory()).Parent.FullName; /// <summary> /// 소스 이미지 /// </summary> private Image sourceImage; /// <summary> /// 마우스 DOWN 포인트 /// </summary> private Point mouseDownPoint = Point.Empty; /// <summary> /// 올가미 밧줄 사각형 /// </summary> private Rectangle lassoRectangle = Rectangle.Empty; /// <summary> /// 확대/축소 퍼센트 변경 여부 /// </summary> private bool zoomPercentChanged; /// <summary> /// 올가미 밧줄 펜 /// </summary> private Pen lassoPen = new Pen(Color.Red); #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - MainForm() /// <summary> /// 생성자 /// </summary> public MainForm() { InitializeComponent(); #region 소스 이미지를 설정한다. this.sourceImage = Image.FromFile(this.sourceImageDirectoryPath + @"\sample.jpg"); #endregion #region 소스 픽처 에디터를 설정한다. this.sourcePictureEdit.Properties.ShowZoomSubMenu = DevExpress.Utils.DefaultBoolean.True; this.sourcePictureEdit.Properties.ShowScrollBars = true; this.sourcePictureEdit.Properties.AllowScrollViaMouseDrag = false; this.sourcePictureEdit.EditValue = sourceImage; #endregion #region 그림 크기 모드 콤보 에디터를 설정한다. this.pictureSizeModeComboBoxEdit.Properties.Items.AddRange ( new PictureSizeMode[] { PictureSizeMode.Clip, PictureSizeMode.Squeeze, PictureSizeMode.Stretch, PictureSizeMode.StretchHorizontal, PictureSizeMode.StretchVertical, PictureSizeMode.Zoom } ); this.pictureSizeModeComboBoxEdit.SelectedIndex = 0; #endregion #region 이벤트를 설정한다. this.pictureSizeModeComboBoxEdit.EditValueChanged += pictureSizeModeComboBoxEdit_EditValueChanged; this.sourcePictureEdit.HScrollBar.ValueChanged += sourcePictureEdit_ScrollBar_ValueChanged; this.sourcePictureEdit.VScrollBar.ValueChanged += sourcePictureEdit_ScrollBar_ValueChanged; this.sourcePictureEdit.MouseDown += sourcePictureEdit_MouseDown; this.sourcePictureEdit.MouseMove += sourcePictureEdit_MouseMove; this.sourcePictureEdit.MouseUp += sourcePictureEdit_MouseUp; this.sourcePictureEdit.ZoomPercentChanged += sourcePictureEdit_ZoomPercentChanged; this.sourcePictureEdit.Paint += sourcePictureEdit_Paint; #endregion } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Private //////////////////////////////////////////////////////////////////////////////// Event #region 그림 크기 모드 콤보 에디터 편집 값 변경시 처리하기 - pictureSizeModeComboBoxEdit_EditValueChanged(sender, e) /// <summary> /// 그림 크기 모드 콤보 에디터 편집 값 변경시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void pictureSizeModeComboBoxEdit_EditValueChanged(object sender, EventArgs e) { ComboBoxEdit comboBoxEdit = sender as ComboBoxEdit; this.sourcePictureEdit.Properties.SizeMode = (PictureSizeMode)comboBoxEdit.EditValue; this.zoomPercentChanged = false; } #endregion #region 소스 픽처 에디터 스크롤바 값 변경시 처리하기 - sourcePictureEdit_ScrollBar_ValueChanged(sender, e) /// <summary> /// 소스 픽처 에디터 스크롤바 값 변경시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void sourcePictureEdit_ScrollBar_ValueChanged(object sender, EventArgs e) { ResetLassoRectangle(); } #endregion #region 소스 픽처 에디터 확대/축소 퍼센트 변경시 처리하기 - sourcePictureEdit_ZoomPercentChanged(sender, e) /// <summary> /// 소스 픽처 에디터 확대/축소 퍼센트 변경시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void sourcePictureEdit_ZoomPercentChanged(object sender, EventArgs e) { this.zoomPercentChanged = true; ResetLassoRectangle(); } #endregion #region 소스 픽처 에디터 마우스 DOWN 처리하기 - sourcePictureEdit_MouseDown(sender, e) /// <summary> /// 소스 픽처 에디터 마우스 DOWN 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void sourcePictureEdit_MouseDown(object sender, MouseEventArgs e) { if(e.Button != MouseButtons.Left) { return; } this.mouseDownPoint = e.Location; ResetLassoRectangle(); PictureEdit pictureEdit = sender as PictureEdit; pictureEdit.Refresh(); } #endregion #region 소스 픽처 에디터 마우스 이동시 처리하기 - sourcePictureEdit_MouseMove(object sender, MouseEventArgs e) /// <summary> /// 소스 픽처 에디터 마우스 이동시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void sourcePictureEdit_MouseMove(object sender, MouseEventArgs e) { if(this.mouseDownPoint.IsEmpty) { return; } if(e.Button != MouseButtons.Left) { return; } Point mouseMovePoint = e.Location; if(CheckBoundRectangle(mouseMovePoint.X, mouseMovePoint.Y)) { this.lassoRectangle = new Rectangle ( mouseDownPoint.X, mouseDownPoint.Y, mouseMovePoint.X - mouseDownPoint.X, mouseMovePoint.Y - mouseDownPoint.Y ); PictureEdit pictureEdit = sender as PictureEdit; pictureEdit.Refresh(); } } #endregion #region 소스 픽처 에디터 마우스 UP 처리하기 - sourcePictureEdit_MouseUp(sender, e) /// <summary> /// 소스 픽처 에디터 마우스 UP 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void sourcePictureEdit_MouseUp(object sender, MouseEventArgs e) { PictureEdit pictureEdit = sender as PictureEdit; Point startPoint = ConvertPoint(pictureEdit, lassoRectangle.Location); Point endPoint = ConvertPoint(pictureEdit , new Point(lassoRectangle.Right, lassoRectangle.Bottom)); Rectangle selectedImageRectangle = new Rectangle ( startPoint.X, startPoint.Y, endPoint.X - startPoint.X, endPoint.Y - startPoint.Y ); if(selectedImageRectangle.Size.Width <= 0 || selectedImageRectangle.Size.Height <= 0) { return; } Bitmap selectedImage = new Bitmap(sourceImage); this.targetPictureEdit.EditValue = selectedImage.Clone(selectedImageRectangle, selectedImage.PixelFormat); } #endregion #region 소스 픽처 에디터 페인트시 처리하기 - sourcePictureEdit_Paint(sender, e) /// <summary> /// 소스 픽처 에디터 페인트시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void sourcePictureEdit_Paint(object sender, PaintEventArgs e) { e.Graphics.DrawRectangle(this.lassoPen, this.lassoRectangle); } #endregion //////////////////////////////////////////////////////////////////////////////// Function #region 올가미 밧줄 사각형 리셋하기 - ResetLassoRectangle() /// <summary> /// 올가미 밧줄 사각형 리셋하기 /// </summary> private void ResetLassoRectangle() { this.lassoRectangle = Rectangle.Empty; } #endregion #region 테두리 사각형 체크하기 - CheckBoundRectangle(x, y) /// <summary> /// 테두리 사각형 체크하기 /// </summary> /// <param name="x">X 좌표</param> /// <param name="y">Y 좌표</param> /// <returns>체크 결과</returns> private bool CheckBoundRectangle(int x, int y) { return x >= 0 && x < this.sourcePictureEdit.Image.Width && y >= 0 && y < this.sourcePictureEdit.Image.Height; } #endregion #region 포인트 변환하기 - ConvertPoint(pictureEdit, sourcePoint) /// <summary> /// 포인트 변환하기 /// </summary> /// <param name="pictureEdit">픽처 에디터</param> /// <param name="sourcePoint">소스 포인트</param> /// <returns>변환 포인트</returns> private Point ConvertPoint(PictureEdit pictureEdit, Point sourcePoint) { Point targetPoint = Point.Empty; if(pictureEdit.Image != null) { PictureEditViewInfo viewInfo = pictureEdit.GetViewInfo() as PictureEditViewInfo; double zoomX = 1.0; double zoomY = 1.0; if(this.zoomPercentChanged && pictureEdit.Properties.SizeMode != PictureSizeMode.Squeeze) { zoomX = zoomY = Convert.ToDouble(pictureEdit.Properties.ZoomPercent) / 100; } else { switch(pictureEdit.Properties.SizeMode) { case PictureSizeMode.Zoom : case PictureSizeMode.Squeeze : zoomX = zoomY = Convert.ToDouble(viewInfo.PictureScreenBounds.Width / pictureEdit.Image.Size.Width); break; case PictureSizeMode.Stretch : zoomX = Convert.ToDouble(viewInfo.PictureScreenBounds.Width / pictureEdit.Image.Size.Width ); zoomY = Convert.ToDouble(viewInfo.PictureScreenBounds.Height / pictureEdit.Image.Size.Height); break; case PictureSizeMode.StretchHorizontal : zoomX = Convert.ToDouble(viewInfo.PictureScreenBounds.Width / pictureEdit.Image.Size.Width); break; case PictureSizeMode.StretchVertical : zoomY = zoomY = Convert.ToDouble(viewInfo.PictureScreenBounds.Height / pictureEdit.Image.Size.Height); break; } } int scrollX = (pictureEdit.Controls[1] as DevExpress.XtraEditors.HScrollBar).Value; int scrollY = (pictureEdit.Controls[0] as DevExpress.XtraEditors.VScrollBar).Value; int x, y; if(pictureEdit.Controls[1].Visible == true) { x = (int)((sourcePoint.X + scrollX - viewInfo.PictureScreenBounds.X) / zoomX); } else { x = (int)((sourcePoint.X - viewInfo.PictureScreenBounds.X) / zoomX); } if(pictureEdit.Controls[0].Visible == true) { y = (int)((sourcePoint.Y + scrollY - viewInfo.PictureScreenBounds.Y) / zoomY); } else { y = (int)((sourcePoint.Y - viewInfo.PictureScreenBounds.Y) / zoomY); } targetPoint = new Point(x, y); } return targetPoint; } #endregion } } |
