■ Bitmap 클래스에서 마우스 휠을 사용해 특정 종횡비로 비트맵을 잘라내는 방법을 보여준다.
▶ GraphicsHelper.cs
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using System.Drawing; namespace TestProject { /// <summary> /// 그래픽스 헬퍼 /// </summary> public static class GraphicsHelper { //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Static //////////////////////////////////////////////////////////////////////////////// Public #region 사각형 그리기 - DrawRectangle(graphics, pen, rectangle) /// <summary> /// 사각형 그리기 /// </summary> /// <param name="graphics">그래픽스</param> /// <param name="pen">펜</param> /// <param name="rectangle">사각형</param> public static void DrawRectangle(Graphics graphics, Pen pen, RectangleF rectangle) { graphics.DrawRectangle(pen, rectangle.X, rectangle.Y, rectangle.Width, rectangle.Height); } #endregion #region 상자 그리기 - DrawBox(graphics, brush, pen, centerPoint, radius) /// <summary> /// 상자 그리기 /// </summary> /// <param name="graphics">그래픽스</param> /// <param name="brush">브러시</param> /// <param name="pen">펜</param> /// <param name="centerPoint">중심 포인트</param> /// <param name="radius">반경</param> public static void DrawBox(Graphics graphics, Brush brush, Pen pen, PointF centerPoint, float radius) { RectangleF rectangle = new RectangleF ( centerPoint.X - radius, centerPoint.Y - radius, 2 * radius, 2 * radius ); graphics.FillRectangle(brush, rectangle); GraphicsHelper.DrawRectangle(graphics, pen, rectangle); } #endregion } } |
▶ MainForm.cs
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using System; using System.Collections.Generic; using System.Drawing; using System.Drawing.Imaging; using System.IO; using System.Windows.Forms; namespace TestProject { /// <summary> /// 메인 폼 /// </summary> public partial class MainForm : Form { //////////////////////////////////////////////////////////////////////////////////////////////////// Enumeration ////////////////////////////////////////////////////////////////////////////////////////// Private #region 히트 타입 - HitType /// <summary> /// 히트 타입 /// </summary> private enum HitType { /// <summary> /// 해당 무 /// </summary> None, /// <summary> /// 몸체 /// </summary> Body, /// <summary> /// 좌측 모서리 /// </summary> LeftEdge, /// <summary> /// 우측 모서리 /// </summary> RightEdge, /// <summary> /// 상단 모서리 /// </summary> TopEdge, /// <summary> /// 하단 모서리 /// </summary> BottomEdge, /// <summary> /// 좌상단 코너 /// </summary> LeftUpperCorner, /// <summary> /// 우상단 코너 /// </summary> RightUpperCorner, /// <summary> /// 좌하단 코너 /// </summary> LeftBottomCorner, /// <summary> /// 우하단 코너 /// </summary> RightBottomCorner, }; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// 소스 비트맵 /// </summary> private Bitmap sourceBitmap = null; /// <summary> /// 타겟 비트맵 /// </summary> private Bitmap targetBitmap = null; /// <summary> /// 선택 사각형 /// </summary> private RectangleF selectionRectangle; /// <summary> /// 드래그 여부 /// </summary> private bool isDragging = false; /// <summary> /// 현재 히트 타입 /// </summary> private HitType currentHitType = HitType.None; /// <summary> /// 마지막 포인트 /// </summary> private Point lastPoint; /// <summary> /// 반대편 코너 /// </summary> private PointF oppositeCorner; /// <summary> /// 이미지 스케일 /// </summary> private float imageScale = 1f; /// <summary> /// 종횡비 너비 /// </summary> private float aspectRatioWidth = 1f; /// <summary> /// 종횡비 높이 /// </summary> private float aspectRatioHeight = 1f; /// <summary> /// 종횡비 /// </summary> private float aspectRatio = 1f; /// <summary> /// 사각형 너비 /// </summary> private float rectangleWidth = 1f; /// <summary> /// 사각형 높이 /// </summary> private float rectangleHeight = 1f; /// <summary> /// 텍스트 변경 무시 여부 /// </summary> private bool ignoreTextChanged = false; /// <summary> /// 반경 임계치 /// </summary> private const int RADIUS_THRESHOLD = 4; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - MainForm() /// <summary> /// 생성자 /// </summary> public MainForm() { InitializeComponent(); this.Load += Form_Load; this.openMenuItem.Click += openMenuItem_Click; this.saveAsMenuItem.Click += saveAsMenuItem_Click; this.exitMenuItem.Click += exitMenuItem_Click; this.scale100MenuItem.Click += scaleMenuItem_Click; this.scale75MenuItem.Click += scaleMenuItem_Click; this.scale66MenuItem.Click += scaleMenuItem_Click; this.scale50MenuItem.Click += scaleMenuItem_Click; this.scale25MenuItem.Click += scaleMenuItem_Click; this.scale15MenuItem.Click += scaleMenuItem_Click; this.resetMenuItem.Click += resetMenuItem_Click; this.aspectRatioTextBox.TextChanged += aspectRatioTextBox_TextChanged; this.widthTextBox.TextChanged += widthTextBox_TextChanged; this.heightTextBox.TextChanged += heightTextBox_TextChanged; this.pictureBox.MouseDown += pictureBox_MouseDown; this.pictureBox.MouseMove += pictureBox_MouseMove; this.pictureBox.MouseUp += pictureBox_MouseUp; this.pictureBox.Paint += pictureBox_Paint; } #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) { float.TryParse(this.widthTextBox.Text , out this.rectangleWidth ); float.TryParse(this.heightTextBox.Text, out this.rectangleHeight); SetAspectRatio(); this.selectionRectangle.X = 10; this.selectionRectangle.Y = 10; MouseWheel += Form_MouseWheel; } #endregion #region 폼 마우스 휠 처리하기 - Form_MouseWheel(sender, e) /// <summary> /// 폼 마우스 휠 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void Form_MouseWheel(object sender, MouseEventArgs e) { if(this.sourceBitmap == null) { return; } int scale = (int)(this.imageScale * 100); ToolStripMenuItem[] menuItemArray = { this.scale100MenuItem, this.scale75MenuItem, this.scale66MenuItem, this.scale50MenuItem, this.scale25MenuItem, this.scale15MenuItem, }; List<int> scaleList = new List<int>() { 100, 75, 66, 50, 25, 15 }; int index = scaleList.IndexOf(scale); if(e.Delta < 0) { index++; } else { index--; } if((index >= 0) && (index < menuItemArray.Length)) { SetScale(menuItemArray[index]); } } #endregion #region 열기 메뉴 항목 클릭시 처리하기 - openMenuItem_Click(sender, e) /// <summary> /// 열기 메뉴 항목 클릭시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void openMenuItem_Click(object sender, EventArgs e) { if(this.openFileDialog.ShowDialog() == DialogResult.OK) { try { this.sourceBitmap = LoadBitmap(this.openFileDialog.FileName); ShowTargetBitmap(); this.saveAsMenuItem.Enabled = true; } catch(Exception exception) { MessageBox.Show(exception.Message); } } } #endregion #region 다른 이름으로 저장 메뉴 항목 클릭시 처리하기 - saveAsMenuItem_Click(sender, e) /// <summary> /// 다른 이름으로 저장 메뉴 항목 클릭시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void saveAsMenuItem_Click(object sender, EventArgs e) { if(this.saveFileDialog.ShowDialog() == DialogResult.OK) { try { Bitmap bitmap = new Bitmap ( (int)this.selectionRectangle.Width, (int)this.selectionRectangle.Height ); using(Graphics graphics = Graphics.FromImage(bitmap)) { graphics.DrawImage ( this.sourceBitmap, 0, 0, this.selectionRectangle, GraphicsUnit.Pixel ); } SaveImage(bitmap, this.saveFileDialog.FileName); } catch(Exception exception) { MessageBox.Show(exception.Message); } } } #endregion #region 종료 메뉴 항목 클릭시 처리하기 - exitMenuItem_Click(sender, e) /// <summary> /// 종료 메뉴 항목 클릭시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void exitMenuItem_Click(object sender, EventArgs e) { Close(); } #endregion #region 스케일 메뉴 항목 클릭시 처리하기 - scaleMenuItem_Click(sender, e) /// <summary> /// 스케일 메뉴 항목 클릭시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void scaleMenuItem_Click(object sender, EventArgs e) { SetScale(sender as ToolStripMenuItem); } #endregion #region 재설정 메뉴 항목 클릭시 처리하기 - resetMenuItem_Click(sender, e) /// <summary> /// 재설정 메뉴 항목 클릭시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void resetMenuItem_Click(object sender, EventArgs e) { this.selectionRectangle.X = 10; this.selectionRectangle.Y = 10; this.pictureBox.Refresh(); } #endregion #region 종횡비 텍스트 박스 텍스트 변경시 처리하기 - aspectRatioTextBox_TextChanged(sender, e) /// <summary> /// 종횡비 텍스트 박스 텍스트 변경시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void aspectRatioTextBox_TextChanged(object sender, EventArgs e) { SetAspectRatio(); } #endregion #region 너비 텍스트 박스 텍스트 변경시 처리하기 - widthTextBox_TextChanged(sender, e) /// <summary> /// 너비 텍스트 박스 텍스트 변경시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void widthTextBox_TextChanged(object sender, EventArgs e) { if(this.ignoreTextChanged) { return; } if(!float.TryParse(this.widthTextBox.Text, out this.rectangleWidth)) { return; } SetRectangleHeight(this.rectangleWidth); } #endregion #region 높이 텍스트 박스 텍스트 변경시 처리하기 - heightTextBox_TextChanged(sender, e) /// <summary> /// 높이 텍스트 박스 텍스트 변경시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void heightTextBox_TextChanged(object sender, EventArgs e) { if(this.ignoreTextChanged) { return; } if(!float.TryParse(this.heightTextBox.Text, out this.rectangleHeight)) { return; } SetRectangleWidth(this.rectangleHeight); } #endregion #region 픽처 박스 마우스 DOWN 처리하기 - pictureBox_MouseDown(sender, e) /// <summary> /// 픽처 박스 마우스 DOWN 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void pictureBox_MouseDown(object sender, MouseEventArgs e) { this.currentHitType = FindHitType(e.Location); if(this.currentHitType == HitType.None) { return; } this.lastPoint = e.Location; switch(this.currentHitType) { case HitType.None : break; case HitType.LeftUpperCorner : case HitType.TopEdge : case HitType.LeftEdge : this.oppositeCorner = new PointF ( this.selectionRectangle.Right, this.selectionRectangle.Bottom ); break; case HitType.RightUpperCorner : this.oppositeCorner = new PointF ( this.selectionRectangle.Left, this.selectionRectangle.Bottom ); break; case HitType.RightBottomCorner : case HitType.BottomEdge : case HitType.RightEdge : this.oppositeCorner = new PointF ( this.selectionRectangle.Left, this.selectionRectangle.Top ); break; case HitType.LeftBottomCorner : this.oppositeCorner = new PointF ( this.selectionRectangle.Right, this.selectionRectangle.Top ); break; } this.isDragging = true; } #endregion #region 픽처 박스 마우스 이동시 처리하기 - pictureBox_MouseMove(sender, e) /// <summary> /// 픽처 박스 마우스 이동시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void pictureBox_MouseMove(object sender, MouseEventArgs e) { Point point = e.Location; if(!this.isDragging) { Cursor newCursor = Cursors.Default; this.currentHitType = FindHitType(point); switch(this.currentHitType) { case HitType.LeftUpperCorner : case HitType.RightBottomCorner : newCursor = Cursors.SizeNWSE; break; case HitType.RightUpperCorner : case HitType.LeftBottomCorner : newCursor = Cursors.SizeNESW; break; case HitType.LeftEdge : case HitType.RightEdge : newCursor = Cursors.SizeWE; break; case HitType.TopEdge : case HitType.BottomEdge : newCursor = Cursors.SizeNS; break; case HitType.Body : newCursor = Cursors.SizeAll; break; } if(this.pictureBox.Cursor != newCursor) { this.pictureBox.Cursor = newCursor; } } else { float cornerWidth = Math.Abs(this.oppositeCorner.X - point.X / this.imageScale); float cornerHeight = Math.Abs(this.oppositeCorner.Y - point.Y / this.imageScale); SizeF cornerSize = GetReducedSize(cornerWidth, cornerHeight); SizeF edgeSize = new SizeF(); if((this.currentHitType == HitType.TopEdge) || (this.currentHitType == HitType.BottomEdge)) { edgeSize = GetEnlargedSize(0, cornerHeight); } else if((this.currentHitType == HitType.LeftEdge) || (this.currentHitType == HitType.RightEdge)) { edgeSize = GetEnlargedSize(cornerWidth, 0); } float centerX = this.selectionRectangle.X + this.selectionRectangle.Width / 2f; float centerY = this.selectionRectangle.Y + this.selectionRectangle.Height / 2f; switch(this.currentHitType) { case HitType.LeftUpperCorner : this.selectionRectangle = new RectangleF ( this.selectionRectangle.Right - cornerSize.Width, this.selectionRectangle.Bottom - cornerSize.Height, cornerSize.Width, cornerSize.Height ); break; case HitType.RightUpperCorner : this.selectionRectangle = new RectangleF ( this.selectionRectangle.Left, this.selectionRectangle.Bottom - cornerSize.Height, cornerSize.Width, cornerSize.Height ); break; case HitType.RightBottomCorner : this.selectionRectangle = new RectangleF ( this.selectionRectangle.X, this.selectionRectangle.Y, cornerSize.Width, cornerSize.Height ); break; case HitType.LeftBottomCorner : this.selectionRectangle = new RectangleF ( this.selectionRectangle.Right - cornerSize.Width, this.selectionRectangle.Top, cornerSize.Width, cornerSize.Height ); break; case HitType.TopEdge : this.selectionRectangle = new RectangleF ( centerX - edgeSize.Width / 2f, this.selectionRectangle.Bottom - edgeSize.Height, edgeSize.Width, edgeSize.Height ); break; case HitType.RightEdge : this.selectionRectangle = new RectangleF ( this.selectionRectangle.Left, centerY - edgeSize.Height / 2f, edgeSize.Width, edgeSize.Height ); break; case HitType.BottomEdge : this.selectionRectangle = new RectangleF ( centerX - edgeSize.Width / 2f, this.selectionRectangle.Top, edgeSize.Width, edgeSize.Height ); break; case HitType.LeftEdge : this.selectionRectangle = new RectangleF ( this.selectionRectangle.Right - edgeSize.Width, centerY - edgeSize.Height / 2f, edgeSize.Width, edgeSize.Height ); break; case HitType.Body : int deltaX = (int)((point.X - this.lastPoint.X) / this.imageScale); int deltaY = (int)((point.Y - this.lastPoint.Y) / this.imageScale); this.selectionRectangle.X += deltaX; this.selectionRectangle.Y += deltaY; break; } this.lastPoint = point; this.pictureBox.Refresh(); ShowWidthAndHeight(); } } #endregion #region 픽처 박스 마우스 UP 처리하기 - pictureBox_MouseUp(sender, e) /// <summary> /// 픽처 박스 마우스 UP 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void pictureBox_MouseUp(object sender, MouseEventArgs e) { this.isDragging = false; } #endregion #region 픽처 박스 페인트시 처리하기 - pictureBox_Paint(sender, e) /// <summary> /// 픽처 박스 페인트시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void pictureBox_Paint(object sender, PaintEventArgs e) { try { RectangleF scaledSelectionRectangle = GetScaledSelectionRectangle(); using(Pen pen = new Pen(Color.Red, 2)) { GraphicsHelper.DrawRectangle(e.Graphics, pen, scaledSelectionRectangle); pen.Color = Color.Yellow; pen.DashPattern = new float[] { 5, 5 }; GraphicsHelper.DrawRectangle(e.Graphics, pen, scaledSelectionRectangle); } PointF[] cornerPointArray = { new PointF(scaledSelectionRectangle.Left, scaledSelectionRectangle.Top), new PointF(scaledSelectionRectangle.Right, scaledSelectionRectangle.Top), new PointF(scaledSelectionRectangle.Left, scaledSelectionRectangle.Bottom), new PointF(scaledSelectionRectangle.Right, scaledSelectionRectangle.Bottom), }; foreach(PointF point in cornerPointArray) { GraphicsHelper.DrawBox(e.Graphics, Brushes.White, Pens.Black, point, RADIUS_THRESHOLD); } } catch { } } #endregion //////////////////////////////////////////////////////////////////////////////// Function #region 선택 사각형 설정하기 - SetSelectionRectangle() /// <summary> /// 선택 사각형 설정하기 /// </summary> private void SetSelectionRectangle() { float centerX = this.selectionRectangle.X + this.selectionRectangle.Width / 2f; float centerY = this.selectionRectangle.Y + this.selectionRectangle.Height / 2f; this.selectionRectangle = new Rectangle ( (int)(centerX - this.rectangleWidth / 2f), (int)(centerY - this.rectangleHeight / 2f), (int)this.rectangleWidth, (int)this.rectangleHeight ); this.pictureBox.Refresh(); } #endregion #region 사각형 높이 설정하기 - SetRectangleHeight(width) /// <summary> /// 사각형 높이 설정하기 /// </summary> /// <param name="width">너비</param> private void SetRectangleHeight(float width) { this.rectangleHeight = (float)(width / this.aspectRatio); this.ignoreTextChanged = true; this.heightTextBox.Text = this.rectangleHeight.ToString(); this.ignoreTextChanged = false; SetSelectionRectangle(); } #endregion #region 사각형 너비 설정하기 - SetRectangleWidth(height) /// <summary> /// 사각형 너비 설정하기 /// </summary> /// <param name="height">높이</param> private void SetRectangleWidth(float height) { this.rectangleWidth = (float)(height * this.aspectRatio); this.ignoreTextChanged = true; this.widthTextBox.Text = this.rectangleWidth.ToString(); this.ignoreTextChanged = false; SetSelectionRectangle(); } #endregion #region 종횡비 설정하기 - SetAspectRatio() /// <summary> /// 종횡비 설정하기 /// </summary> private void SetAspectRatio() { string[] fieldStringArray = this.aspectRatioTextBox.Text.Split(':'); if(fieldStringArray.Length < 2) { return; } if(!float.TryParse(fieldStringArray[0], out this.aspectRatioWidth)) { return; } if(!float.TryParse(fieldStringArray[1], out this.aspectRatioHeight)) { return; } this.aspectRatio = (float)this.aspectRatioWidth / (float)this.aspectRatioHeight; SetRectangleHeight(this.rectangleWidth); } #endregion #region 타겟 비트맵 표시하기 - ShowTargetBitmap() /// <summary> /// 타겟 비트맵 표시하기 /// </summary> private void ShowTargetBitmap() { if(this.sourceBitmap == null) { return; } int targetWidth = (int)(this.sourceBitmap.Width * this.imageScale); int targetHeight = (int)(this.sourceBitmap.Height * this.imageScale); this.targetBitmap = new Bitmap(targetWidth, targetHeight); using(Graphics graphics = Graphics.FromImage(this.targetBitmap)) { Point[] targetPointArray = { new Point(0, 0), new Point(targetWidth - 1, 0), new Point(0, targetHeight - 1), }; Rectangle sourceRectangle = new Rectangle ( 0, 0, this.sourceBitmap.Width - 1, this.sourceBitmap.Height - 1 ); graphics.DrawImage(this.sourceBitmap, targetPointArray, sourceRectangle, GraphicsUnit.Pixel); } this.pictureBox.Image = this.targetBitmap; this.pictureBox.Visible = true; this.pictureBox.Refresh(); } #endregion #region 스케일 설정하기 - SetScale(menuItem) /// <summary> /// 스케일 설정하기 /// </summary> /// <param name="menuItem">메뉴 항목</param> private void SetScale(ToolStripMenuItem menuItem) { string scaleText = menuItem.Text.Replace("&", "").Replace("%", ""); this.imageScale = float.Parse(scaleText) / 100f; ShowTargetBitmap(); this.scaleMenuItem.Text = "스케일(&S) (" + menuItem.Text.Replace("&", "") + ")"; foreach(ToolStripMenuItem scaleChildMenuItem in scaleMenuItem.DropDownItems) { scaleChildMenuItem.Checked = (scaleChildMenuItem == menuItem); } } #endregion #region 비트맵 로드하기 - LoadBitmap(filePath) /// <summary> /// 비트맵 로드하기 /// </summary> /// <param name="filePath">파일 경로</param> /// <returns>비트맵</returns> private Bitmap LoadBitmap(string filePath) { using(Bitmap bitmap = new Bitmap(filePath)) { return new Bitmap(bitmap); } } #endregion #region 이미지 저장하기 - SaveImage(image, filePath) /// <summary> /// 이미지 저장하기 /// </summary> /// <param name="image">이미지</param> /// <param name="filePath">파일 경로</param> private void SaveImage(Image image, string filePath) { string fileExtension = Path.GetExtension(filePath); switch(fileExtension.ToLower()) { case ".bmp" : image.Save(filePath, ImageFormat.Bmp ); break; case ".exif" : image.Save(filePath, ImageFormat.Exif); break; case ".gif" : image.Save(filePath, ImageFormat.Gif ); break; case ".jpg" : case ".jpeg" : image.Save(filePath, ImageFormat.Jpeg); break; case ".png" : image.Save(filePath, ImageFormat.Png ); break; case ".tif" : case ".tiff" : image.Save(filePath, ImageFormat.Tiff); break; default : throw new NotSupportedException($"알 수 없는 파일 확장자 : {fileExtension}"); } } #endregion #region 스케일 선택 사각형 구하기 - GetScaledSelectionRectangle() /// <summary> /// 스케일 선택 사각형 구하기 /// </summary> /// <returns>스케일 선택 사각형</returns> private RectangleF GetScaledSelectionRectangle() { float x = this.imageScale * this.selectionRectangle.X; float y = this.imageScale * this.selectionRectangle.Y; float width = this.imageScale * this.selectionRectangle.Width; float height = this.imageScale * this.selectionRectangle.Height; return new RectangleF(x, y, width, height); } #endregion #region 히트 타입 찾기 - FindHitType(point) /// <summary> /// 히트 타입 찾기 /// </summary> /// <param name="point">포인트</param> /// <returns>히트 타입</returns> private HitType FindHitType(Point point) { RectangleF scaledSelectionRectangle = GetScaledSelectionRectangle(); bool hitLeft; bool hitRight; bool hitTop; bool hitBottom; hitLeft = ((point.X >= scaledSelectionRectangle.Left - RADIUS_THRESHOLD) && (point.X <= scaledSelectionRectangle.Left + RADIUS_THRESHOLD)); hitRight = ((point.X >= scaledSelectionRectangle.Right - RADIUS_THRESHOLD) && (point.X <= scaledSelectionRectangle.Right + RADIUS_THRESHOLD)); hitTop = ((point.Y >= scaledSelectionRectangle.Top - RADIUS_THRESHOLD) && (point.Y <= scaledSelectionRectangle.Top + RADIUS_THRESHOLD)); hitBottom = ((point.Y >= scaledSelectionRectangle.Bottom - RADIUS_THRESHOLD) && (point.Y <= scaledSelectionRectangle.Bottom + RADIUS_THRESHOLD)); if(hitLeft && hitTop ) return HitType.LeftUpperCorner; if(hitRight && hitTop ) return HitType.RightUpperCorner; if(hitLeft && hitBottom) return HitType.LeftBottomCorner; if(hitRight && hitBottom) return HitType.RightBottomCorner; if(hitLeft ) return HitType.LeftEdge; if(hitRight ) return HitType.RightEdge; if(hitTop ) return HitType.TopEdge; if(hitBottom) return HitType.BottomEdge; if ( (point.X >= scaledSelectionRectangle.Left) && (point.X <= scaledSelectionRectangle.Right ) && (point.Y >= scaledSelectionRectangle.Top ) && (point.Y <= scaledSelectionRectangle.Bottom) ) { return HitType.Body; } return HitType.None; } #endregion #region 축소 크기 구하기 - GetReducedSize(newWidth, newHeight) /// <summary> /// 축소 크기 구하기 /// </summary> /// <param name="newWidth">신규 너비</param> /// <param name="newHeight">신규 높이</param> /// <returns>감소 크기</returns> private SizeF GetReducedSize(float newWidth, float newHeight) { if(newWidth < 10) { newWidth = 10; } if(newHeight < 10) { newHeight = 10; } if(newWidth / newHeight > this.aspectRatio) { newWidth = newHeight * this.aspectRatio; } else { newHeight = newWidth / this.aspectRatio; } return new SizeF(newWidth, newHeight); } #endregion #region 확장 크기 구하기 - GetEnlargedSize(newWidth, newHeight) /// <summary> /// 확장 크기 구하기 /// </summary> /// <param name="newWidth">신규 너비</param> /// <param name="newHeight">신규 높이</param> /// <returns>확장 크기</returns> private SizeF GetEnlargedSize(float newWidth, float newHeight) { if(newWidth < 10) { newWidth = 10; } if(newHeight < 10) { newHeight = 10; } if(newWidth / newHeight > this.aspectRatio) { newHeight = newWidth / this.aspectRatio; } else { newWidth = newHeight * this.aspectRatio; } return new SizeF(newWidth, newHeight); } #endregion #region 너비/높이 표시하기 - ShowWidthAndHeight() /// <summary> /// 너비/높이 표시하기 /// </summary> private void ShowWidthAndHeight() { this.ignoreTextChanged = true; this.widthTextBox.Text = this.selectionRectangle.Width.ToString(); this.heightTextBox.Text = this.selectionRectangle.Height.ToString(); this.ignoreTextChanged = false; } #endregion } } |
