■ PictureBox 클래스를 사용해 사용자 그리기 및 확대/축소하는 방법을 보여준다.
▶ Polyline.cs
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using System.Collections.Generic; using System.Drawing; using System.Drawing.Drawing2D; using System.Xml.Serialization; namespace TestProject { /// <summary> /// 다각선 /// </summary> public class Polyline { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Public #region Field /// <summary> /// 색상 /// </summary> [XmlIgnore] public Color Color = Color.Black; /// <summary> /// 두께 /// </summary> public int Thickness = 1; /// <summary> /// 대시 스타일 /// </summary> public DashStyle DashStyle = DashStyle.Solid; /// <summary> /// 포인트 리스트 /// </summary> public List<Point> PointList = new List<Point>(); #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Property ////////////////////////////////////////////////////////////////////////////////////////// Public #region ARGB - ARGB /// <summary> /// ARGB /// </summary> public int ARGB { get { return Color.ToArgb(); } set { Color = Color.FromArgb(value); } } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Public #region 그리기 - Draw(graphics) /// <summary> /// 그리기 /// </summary> /// <param name="graphics">그래픽스</param> public void Draw(Graphics graphics) { using(Pen pen = new Pen(Color, Thickness)) { pen.DashStyle = DashStyle; if(DashStyle == DashStyle.Custom) { pen.DashPattern = new float[] { 10, 2 }; } graphics.DrawLines(pen, PointList.ToArray()); } } #endregion } } |
▶ MainForm.cs
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using System; using System.Collections.Generic; using System.Drawing; using System.Drawing.Drawing2D; using System.IO; using System.Windows.Forms; using System.Xml.Serialization; namespace TestProject { /// <summary> /// 메인 폼 /// </summary> public partial class MainForm : Form { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// 다각선 리스트 /// </summary> private List<Polyline> polylineList = new List<Polyline>(); /// <summary> /// 신규 다각선 /// </summary> private Polyline newPolyline = null; /// <summary> /// 그리기 색상 /// </summary> private Color drawingColor = Color.Black; /// <summary> /// 그리기 두께 /// </summary> private int drawingThickness = 1; /// <summary> /// 그리기 대시 스타일 /// </summary> private DashStyle drawingDashStyle = DashStyle.Solid; /// <summary> /// 자동 저장 파일 경로 /// </summary> private string autoSaveFilePath = Path.GetTempPath() + "scribble.tmp"; /// <summary> /// 월드 너비 /// </summary> private const int WORLD_WIDTH = 200; /// <summary> /// 월드 높이 /// </summary> private const int WORLD_HEIGHT = 200; /// <summary> /// 그림 스케일 /// </summary> private float pictureScale = 1.0f; /// <summary> /// 역 변환 /// </summary> private Matrix inverseTransform = new Matrix(); /// <summary> /// UNDO 스택 /// </summary> private Stack<string> undoStack = new Stack<string>(); /// <summary> /// REDO 스택 /// </summary> private Stack<string> redoStack = new Stack<string>(); #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - MainForm() /// <summary> /// 생성자 /// </summary> public MainForm() { InitializeComponent(); Load += Form_Load; FormClosing += Form_FormClosing; this.newMenuitem.Click += newMenuitem_Click; this.openMenuItem.Click += openMenuItem_Click; this.saveAsMenuItem.Click += saveAsMenuItem_Click; this.exitMenuItem.Click += exitMenuItem_Click; this.undoMenuitem.Click += undoMenuitem_Click; this.redoMenuItem.Click += redoMenuItem_Click; this.blackMenuItem.Click += colorMenuItem_Click; this.redMenuItem.Click += colorMenuItem_Click; this.greenMenuItem.Click += colorMenuItem_Click; this.blueMenuItem.Click += colorMenuItem_Click; this.orangeMenuItem.Click += colorMenuItem_Click; this.yellowMenuItem.Click += colorMenuItem_Click; this.limeMenuItem.Click += colorMenuItem_Click; this.thickness1MenuItem.Click += thicknessMenuItem_Click; this.thickness2MenuItem.Click += thicknessMenuItem_Click; this.thickness3MenuItem.Click += thicknessMenuItem_Click; this.thickness4MenuItem.Click += thicknessMenuItem_Click; this.thickness5MenuItem.Click += thicknessMenuItem_Click; this.solidMenuItem.Click += styleMenuItem_Click; this.dashMenuItem.Click += styleMenuItem_Click; this.dotMenuItem.Click += styleMenuItem_Click; this.customMenuItem.Click += styleMenuItem_Click; this.scaleComboBox.SelectedIndexChanged += scaleComboBox_SelectedIndexChanged; this.canvasPictureBox.Paint += canvasPictureBox_Paint; this.canvasPictureBox.MouseDown += canvasPictureBox_MouseDown; this.canvasPictureBox.MouseMove += canvasPictureBox_MouseMove; this.canvasPictureBox.MouseUp += canvasPictureBox_MouseUp; } #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.scaleComboBox.SelectedIndex = 2; if(File.Exists(this.autoSaveFilePath)) { DialogResult result = MessageBox.Show ( "An auto-save file exists. Do you want to load it?", "Restore?", MessageBoxButtons.YesNo, MessageBoxIcon.Question ); if(result == DialogResult.Yes) { LoadFile(this.autoSaveFilePath); } } CreateTestData(); this.canvasPictureBox.Refresh(); } #endregion #region 폼을 닫을 경우 처리하기 - Form_FormClosing(sender, e) /// <summary> /// 폼을 닫을 경우 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void Form_FormClosing(object sender, FormClosingEventArgs e) { if(File.Exists(this.autoSaveFilePath)) { File.Delete(this.autoSaveFilePath); } } #endregion #region New 메뉴 항목 클릭시 처리하기 - newMenuitem_Click(sender, e) /// <summary> /// New 메뉴 항목 클릭시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void newMenuitem_Click(object sender, EventArgs e) { this.polylineList = new List<Polyline>(); this.canvasPictureBox.Refresh(); this.undoStack = new Stack<string>(); this.redoStack = new Stack<string>(); } #endregion #region Open 메뉴 항목 클릭시 처리하기 - openMenuItem_Click(sender, e) /// <summary> /// Open 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) { LoadFile(this.openFileDialog.FileName); } } #endregion #region Save As 메뉴 항목 클릭시 처리하기 - saveAsMenuItem_Click(sender, e) /// <summary> /// Save As 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) { SaveFile(this.saveFileDialog.FileName); } } #endregion #region Exit 메뉴 항목 클릭시 처리하기 - exitMenuItem_Click(sender, e) /// <summary> /// Exit 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 Undo 메뉴 항목 클릭시 처리하기 - undoMenuitem_Click(sender, e) /// <summary> /// Undo 메뉴 항목 클릭시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void undoMenuitem_Click(object sender, EventArgs e) { this.redoStack.Push(this.undoStack.Pop()); RestoreTopUndoItem(); EnableUndo(); } #endregion #region REDO 메뉴 항목 클릭시 처리하기 - redoMenuItem_Click(sender, e) /// <summary> /// REDO 메뉴 항목 클릭시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void redoMenuItem_Click(object sender, EventArgs e) { this.undoStack.Push(this.redoStack.Pop()); RestoreTopUndoItem(); EnableUndo(); } #endregion #region 색상 메뉴 항목 클릭시 처리하기 - colorMenuItem_Click(sender, e) /// <summary> /// 색상 메뉴 항목 클릭시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void colorMenuItem_Click(object sender, EventArgs e) { ToolStripMenuItem menuItem = sender as ToolStripMenuItem; this.colorButton.Image = menuItem.Image; this.drawingColor = menuItem.ForeColor; } #endregion #region 두께 메뉴 항목 클릭시 처리하기 - thicknessMenuItem_Click(sender, e) /// <summary> /// 두께 메뉴 항목 클릭시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void thicknessMenuItem_Click(object sender, EventArgs e) { ToolStripMenuItem menuItem = sender as ToolStripMenuItem; this.thicknessButton.Image = menuItem.Image; this.drawingThickness = int.Parse(menuItem.Text); } #endregion #region 스타일 메뉴 항목 클릭시 처리하기 - styleMenuItem_Click(sender, e) /// <summary> /// 스타일 메뉴 항목 클릭시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void styleMenuItem_Click(object sender, EventArgs e) { ToolStripMenuItem menuItem = sender as ToolStripMenuItem; this.styleButton.Image = menuItem.Image; switch(menuItem.Text) { case "Solid" : this.drawingDashStyle = DashStyle.Solid; break; case "Dash" : this.drawingDashStyle = DashStyle.Dash; break; case "Dot" : this.drawingDashStyle = DashStyle.Dot; break; case "Custom" : this.drawingDashStyle = DashStyle.Custom; break; } } #endregion #region 스케일 콤보 박스 선택 인덱스 변경시 처리하기 - scaleComboBox_SelectedIndexChanged(sender, e) /// <summary> /// 스케일 콤보 박스 선택 인덱스 변경시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void scaleComboBox_SelectedIndexChanged(object sender, EventArgs e) { switch(this.scaleComboBox.Text) { case "x 1/4" : SetScale(0.25f); break; case "x 1/2" : SetScale(0.5f); break; case "x 1" : SetScale(1.0f); break; case "x 2" : SetScale(2.0f); break; case "x 4" : SetScale(4.0f); break; case "x 8" : SetScale(8.0f); break; } } #endregion #region 캔버스 픽처 박스 페인트시 처리하기 - canvasPictureBox_Paint(sender, e) /// <summary> /// 캔버스 픽처 박스 페인트시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void canvasPictureBox_Paint(object sender, PaintEventArgs e) { e.Graphics.SmoothingMode = SmoothingMode.AntiAlias; e.Graphics.Clear(Color.White); e.Graphics.ScaleTransform(this.pictureScale, this.pictureScale); foreach(Polyline polyline in this.polylineList) { polyline.Draw(e.Graphics); } } #endregion #region 캔버스 픽처 박스 마우스 DOWN 처리하기 - canvasPictureBox_MouseDown(sender, e) /// <summary> /// 캔버스 픽처 박스 마우스 DOWN 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void canvasPictureBox_MouseDown(object sender, MouseEventArgs e) { this.newPolyline = new Polyline(); this.newPolyline.Color = this.drawingColor; this.newPolyline.Thickness = this.drawingThickness; this.newPolyline.DashStyle = this.drawingDashStyle; this.polylineList.Add(this.newPolyline); Point[] pointArray = { e.Location }; this.inverseTransform.TransformPoints(pointArray); this.newPolyline.PointList.Add(pointArray[0]); } #endregion #region 캔버스 픽처 박스 마우스 이동시 처리하기 - canvasPictureBox_MouseMove(sender, e) /// <summary> /// 캔버스 픽처 박스 마우스 이동시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void canvasPictureBox_MouseMove(object sender, MouseEventArgs e) { if(this.newPolyline == null) { return; } Point[] pointArray = { e.Location }; this.inverseTransform.TransformPoints(pointArray); this.newPolyline.PointList.Add(pointArray[0]); this.canvasPictureBox.Refresh(); } #endregion #region 캔버스 픽처 박스 마우스 UP 처리하기 - canvasPictureBox_MouseUp(sender, e) /// <summary> /// 캔버스 픽처 박스 마우스 UP 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void canvasPictureBox_MouseUp(object sender, MouseEventArgs e) { if(this.newPolyline == null) { return; } if(this.newPolyline.PointList.Count < 2) { this.polylineList.RemoveAt(this.polylineList.Count - 1); } this.newPolyline = null; this.canvasPictureBox.Refresh(); SaveSnapshot(true); } #endregion //////////////////////////////////////////////////////////////////////////////// Function #region 원 그리기 - DrawCircle(centerX, centerY, radius, lineCount) /// <summary> /// 원 그리기 /// </summary> /// <param name="centerX">중심점 X</param> /// <param name="centerY">중심점 Y</param> /// <param name="radius">반경</param> /// <param name="lineCount">라인 카운트</param> /// <returns>다각선</returns> private Polyline DrawCircle(int centerX, int centerY, int radius, int lineCount) { Polyline polyline = new Polyline(); float theta = 0; float deltaTheta = (float)(2 * Math.PI / lineCount); for(int i = 0; i <= lineCount; i++) { int x = (int)(centerX + radius * Math.Cos(theta)); int y = (int)(centerY + radius * Math.Sin(theta)); theta += deltaTheta; polyline.PointList.Add(new Point(x, y)); } return polyline; } #endregion #region 테스트 데이터 생성하기 - CreateTestData() /// <summary> /// 테스트 데이터 생성하기 /// </summary> private void CreateTestData() { Color[] colorArray = { Color.Black, Color.Red, Color.Green, Color.Blue, Color.Lime, Color.Cyan, Color.Orange, Color.Yellow }; DashStyle[] dashStyleArray = { DashStyle.Solid, DashStyle.Solid, DashStyle.Solid, DashStyle.Dash, DashStyle.DashDot }; Random random = new Random(); for(int i = 0; i < 10; i++) { int centerX = random.Next(30, WORLD_WIDTH - 30); int centerY = random.Next(30, WORLD_HEIGHT - 30); int radius = random.Next(10, 100 ); Polyline polyline = DrawCircle(centerX, centerY, radius, 100); polyline.Color = colorArray[random.Next(0, colorArray.Length)]; polyline.DashStyle = dashStyleArray[random.Next(0, dashStyleArray.Length)]; polyline.Thickness = random.Next(1, 6); this.polylineList.Add(polyline); } } #endregion #region 파일 로드하기 - LoadFile(filePath) /// <summary> /// 파일 로드하기 /// </summary> /// <param name="filePath">파일 경로</param> private void LoadFile(string filePath) { try { XmlSerializer serializer = new XmlSerializer(this.polylineList.GetType()); using(FileStream stream = new FileStream(filePath, FileMode.Open)) { List<Polyline> newPolylineList = (List<Polyline>)serializer.Deserialize(stream); this.polylineList = newPolylineList; this.canvasPictureBox.Refresh(); this.undoStack = new Stack<string>(); this.redoStack = new Stack<string>(); SaveSnapshot(false); } } catch(Exception exception) { MessageBox.Show(exception.Message); } } #endregion #region 파일 저장하기 - SaveFile(filePath) /// <summary> /// 파일 저장하기 /// </summary> /// <param name="filePath">파일 경로</param> private void SaveFile(string filePath) { XmlSerializer serializer = new XmlSerializer(this.polylineList.GetType()); using(StreamWriter writer = new StreamWriter(filePath)) { serializer.Serialize(writer, polylineList); writer.Close(); } } #endregion #region 자동 저장하기 - AutoSave() /// <summary> /// 자동 저장하기 /// </summary> private void AutoSave() { SaveFile(this.autoSaveFilePath); } #endregion #region 최상휘 UNDO 항목 복구하기 - RestoreTopUndoItem() /// <summary> /// 최상휘 UNDO 항목 복구하기 /// </summary> private void RestoreTopUndoItem() { if(this.undoStack.Count == 0) { this.polylineList = new List<Polyline>(); } else { XmlSerializer serializer = new XmlSerializer(this.polylineList.GetType()); using(StringReader reader = new StringReader(this.undoStack.Peek())) { List<Polyline> newPolylineList = (List<Polyline>)serializer.Deserialize(reader); this.polylineList = newPolylineList; } } this.canvasPictureBox.Refresh(); AutoSave(); } #endregion #region UNDO 이용 가능하게 하기 - EnableUndo() /// <summary> /// UNDO 이용 가능하게 하기 /// </summary> private void EnableUndo() { this.undoMenuitem.Enabled = (this.undoStack.Count > 0); this.redoMenuItem.Enabled = (this.redoStack.Count > 0); } #endregion #region 스케일 설정하기 - SetScale(scale) /// <summary> /// 스케일 설정하기 /// </summary> /// <param name="scale">스케일</param> private void SetScale(float scale) { this.pictureScale = scale; this.canvasPictureBox.ClientSize = new Size ( (int)(WORLD_WIDTH * this.pictureScale), (int)(WORLD_HEIGHT * this.pictureScale) ); this.inverseTransform = new Matrix(); this.inverseTransform.Scale(1.0f / scale, 1.0f / scale); this.canvasPictureBox.Refresh(); } #endregion #region 스냅샷 구하기 - GetSnapshot() /// <summary> /// 스냅샷 구하기 /// </summary> /// <returns>스냅샷</returns> private string GetSnapshot() { XmlSerializer serializer = new XmlSerializer(this.polylineList.GetType()); using(StringWriter writer = new StringWriter()) { serializer.Serialize(writer, this.polylineList); return writer.ToString(); } } #endregion #region 스냅샷 저장하기 - SaveSnapshot(autoSave) /// <summary> /// 스냅샷 저장하기 /// </summary> /// <param name="autoSave">자동 저장 여부</param> private void SaveSnapshot(bool autoSave) { this.undoStack.Push(GetSnapshot()); if(this.redoStack.Count > 0) { this.redoStack = new Stack<string>(); } EnableUndo(); if(autoSave) { AutoSave(); } } #endregion } } |
