■ 스크롤 가능한 가계도를 만드는 방법을 보여준다.
▶ ITreeNode.cs
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using System.Drawing; namespace TestProject { /// <summary> /// 트리 노드 인터페이스 /// </summary> public interface ITreeNode { //////////////////////////////////////////////////////////////////////////////////////////////////// Method #region 크기 구하기 - GetSize(graphics, font) /// <summary> /// 크기 구하기 /// </summary> /// <param name="graphics">그래픽스</param> /// <param name="font">폰트</param> /// <returns>크기</returns> SizeF GetSize(Graphics graphics, Font font); #endregion #region 포인트 위치 여부 구하기 - IsAtPoint(graphics, font, centerPoint, targetPoint) /// <summary> /// 포인트 위치 여부 구하기 /// </summary> /// <param name="graphics">그래픽스</param> /// <param name="font">폰트</param> /// <param name="centerPoint">중심 포인트</param> /// <param name="targetPoint">타겟 포인트</param> /// <returns>포인트 위치 여부</returns> bool IsAtPoint(Graphics graphics, Font font, PointF centerPoint, PointF targetPoint); #endregion #region 그리기 - Draw(x, y, graphics, pen, backgroundBrush, textBrush, font) /// <summary> /// 그리기 /// </summary> /// <param name="x">X 좌표</param> /// <param name="y">Y 좌표</param> /// <param name="graphics">그래픽스</param> /// <param name="pen">펜</param> /// <param name="backgroundBrush">배경 브러시</param> /// <param name="textBrush">텍스트 브러시</param> /// <param name="font">폰트</param> void Draw(float x, float y, Graphics graphics, Pen pen, Brush backgroundBrush, Brush textBrush, Font font); #endregion } } |
▶ TreeNode.cs
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using System.Collections.Generic; using System.Drawing; namespace TestProject { /// <summary> /// 트리 노드 /// </summary> /// <typeparam name="TData">데이터 타입</typeparam> public class TreeNode<TData> where TData : ITreeNode { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Public #region Field /// <summary> /// 데이터 /// </summary> public TData Data; /// <summary> /// 자식 노드 리스트 /// </summary> public List<TreeNode<TData>> ChildNodeList = new List<TreeNode<TData>>(); /// <summary> /// 폰트 /// </summary> public Font Font = null; /// <summary> /// 펜 /// </summary> public Pen Pen = Pens.Black; /// <summary> /// 폰트 브러시 /// </summary> public Brush FontBrush = Brushes.Black; /// <summary> /// 배경 브러시 /// </summary> public Brush BackgroundBrush = Brushes.White; /// <summary> /// 중심 포인트 /// </summary> public PointF CenterPoint; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// 수평 오프셋 /// </summary> private const float HORIZONTAL_OFFSET = 30; /// <summary> /// 수직 오프셋 /// </summary> private const float VERTICAL_OFFSET = 20; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - TreeNode(data, font) /// <summary> /// 생성자 /// </summary> /// <param name="data">데이터</param> /// <param name="font">폰트</param> public TreeNode(TData data, Font font) { Data = data; Font = font; } #endregion #region 생성자 - TreeNode(data) /// <summary> /// 생성자 /// </summary> /// <param name="data">데이터</param> public TreeNode(TData data) : this(data, new Font("나눔고딕코딩", 12)) { Data = data; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Public #region 자식 추가하기 - AddChild(childNode) /// <summary> /// 자식 추가하기 /// </summary> /// <param name="childNode">자식 노드</param> public void AddChild(TreeNode<TData> childNode) { ChildNodeList.Add(childNode); } #endregion #region 배열하기 - Arrange(graphics, minimumX, minimumY) /// <summary> /// 배열하기 /// </summary> /// <param name="graphics">그래픽스</param> /// <param name="minimumX">X 최소값</param> /// <param name="minimumY">Y 최소값</param> public void Arrange(Graphics graphics, ref float minimumX, ref float minimumY) { SizeF dataSize = Data.GetSize(graphics, Font); float x = minimumX; float biggestMinimumY = minimumY + dataSize.Height; float childTreeMinimumY = minimumY + dataSize.Height + VERTICAL_OFFSET; foreach(TreeNode<TData> childNode in ChildNodeList) { float childMinimumY = childTreeMinimumY; childNode.Arrange(graphics, ref x, ref childMinimumY); if(biggestMinimumY < childMinimumY) { biggestMinimumY = childMinimumY; } x += HORIZONTAL_OFFSET; } if(ChildNodeList.Count > 0) { x -= HORIZONTAL_OFFSET; } float childTreeWidth = x - minimumX; if(dataSize.Width > childTreeWidth) { x = minimumX + (dataSize.Width - childTreeWidth) / 2; foreach(TreeNode<TData> childNode in ChildNodeList) { childNode.Arrange(graphics, ref x, ref childTreeMinimumY); x += HORIZONTAL_OFFSET; } childTreeWidth = dataSize.Width; } CenterPoint = new PointF ( minimumX + childTreeWidth / 2, minimumY + dataSize.Height / 2 ); minimumX += childTreeWidth; minimumY = biggestMinimumY; } #endregion #region 트리 그리기 - DrawTree(graphics) /// <summary> /// 트리 그리기 /// </summary> /// <param name="graphics">그래픽스</param> public void DrawTree(Graphics graphics) { DrawChildNodeLink(graphics); DrawChildNode(graphics); } #endregion #region 트리 그리기 - DrawTree(graphics, x, y) /// <summary> /// 트리 그리기 /// </summary> /// <param name="graphics">그래픽스</param> /// <param name="x">X 좌표</param> /// <param name="y">Y 좌표</param> public void DrawTree(Graphics graphics, ref float x, float y) { Arrange(graphics, ref x, ref y); DrawTree(graphics); } #endregion #region 노드 구하기 - GetNode(graphics, targetPoint) /// <summary> /// 노드 구하기 /// </summary> /// <param name="graphics">그래픽스</param> /// <param name="targetPoint">타겟 포인트</param> /// <returns>노드</returns> public TreeNode<TData> GetNode(Graphics graphics, PointF targetPoint) { if(Data.IsAtPoint(graphics, Font, CenterPoint, targetPoint)) { return this; } foreach(TreeNode<TData> childNode in ChildNodeList) { TreeNode<TData> hitNode = childNode.GetNode(graphics, targetPoint); if(hitNode != null) { return hitNode; } } return null; } #endregion #region 노드 삭제하기 - DeleteNode(targetNode) /// <summary> /// 노드 삭제하기 /// </summary> /// <param name="targetNode">타겟 노드</param> /// <returns>삭제 결과</returns> public bool DeleteNode(TreeNode<TData> targetNode) { foreach(TreeNode<TData> childNode in ChildNodeList) { if(childNode == targetNode) { ChildNodeList.Remove(childNode); return true; } if(childNode.DeleteNode(targetNode)) { return true; } } return false; } #endregion ////////////////////////////////////////////////////////////////////////////////////////// Private #region 자식 노드 링크 그리기 - DrawChildNodeLink(graphics) /// <summary> /// 자식 노드 링크 그리기 /// </summary> /// <param name="graphics">그래픽스</param> private void DrawChildNodeLink(Graphics graphics) { if(ChildNodeList.Count == 1) { graphics.DrawLine(Pen, CenterPoint, ChildNodeList[0].CenterPoint); } else if(ChildNodeList.Count > 1) { float minimumX = ChildNodeList[0].CenterPoint.X; float maximumX = ChildNodeList[ChildNodeList.Count - 1].CenterPoint.X; SizeF dataSize = Data.GetSize(graphics, Font); float y = CenterPoint.Y + dataSize.Height / 2 + VERTICAL_OFFSET / 2f; graphics.DrawLine(Pen, minimumX, y, maximumX, y); graphics.DrawLine(Pen, CenterPoint.X, CenterPoint.Y, CenterPoint.X, y); foreach(TreeNode<TData> childNode in ChildNodeList) { graphics.DrawLine ( Pen, childNode.CenterPoint.X, y, childNode.CenterPoint.X, childNode.CenterPoint.Y ); } } foreach(TreeNode<TData> childNode in ChildNodeList) { childNode.DrawChildNodeLink(graphics); } } #endregion #region 자식 노드 그리기 - DrawChildNode(graphics) /// <summary> /// 자식 노드 그리기 /// </summary> /// <param name="graphics">그래픽스</param> private void DrawChildNode(Graphics graphics) { Data.Draw(CenterPoint.X, CenterPoint.Y, graphics, Pen, BackgroundBrush, FontBrush, Font); foreach(TreeNode<TData> childNode in ChildNodeList) { childNode.DrawChildNode(graphics); } } #endregion } } |
▶ ImageNode.cs
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using System.Drawing; using System.Windows.Forms; namespace TestProject { /// <summary> /// 이미지 노드 /// </summary> public class ImageNode : ITreeNode { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Public #region Field /// <summary> /// 노드 크기 /// </summary> public SizeF NodeSize = new SizeF(100, 100); /// <summary> /// 설명 /// </summary> public string Description; /// <summary> /// 이미지 /// </summary> public Image Image = null; /// <summary> /// 선택 여부 /// </summary> public bool Selected = false; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - ImageNode(description, image) /// <summary> /// 생성자 /// </summary> /// <param name="description">설명</param> /// <param name="image">이미지</param> public ImageNode(string description, Image image) { Description = description; Image = image; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Public #region 크기 구하기 - GetSize(graphics, font) /// <summary> /// 크기 구하기 /// </summary> /// <param name="graphics">그래픽스</param> /// <param name="font">폰트</param> /// <returns>크기</returns> public SizeF GetSize(Graphics graphics, Font font) { return NodeSize; } #endregion #region 포인트 위치 여부 구하기 - IsAtPoint(graphics, font, centerPoint, targetPoint) /// <summary> /// 포인트 위치 여부 구하기 /// </summary> /// <param name="graphics">그래픽스</param> /// <param name="font">폰트</param> /// <param name="centerPoint">중심 포인트</param> /// <param name="targetPoint">타겟 포인트</param> /// <returns>포인트 위치 여부</returns> public bool IsAtPoint(Graphics graphics, Font font, PointF centerPoint, PointF targetPoint) { RectangleF rectangle = GetNodeRectangle(centerPoint); return rectangle.Contains(targetPoint); } #endregion #region 그리기 - Draw(x, y, graphics, pen, backgroundBrush, textBrush, font) /// <summary> /// 그리기 /// </summary> /// <param name="x">X 좌표</param> /// <param name="y">Y 좌표</param> /// <param name="graphics">그래픽스</param> /// <param name="pen">펜</param> /// <param name="backgroundBrush">배경 브러시</param> /// <param name="textBrush">텍스트 브러시</param> /// <param name="font">폰트</param> public void Draw(float x, float y, Graphics graphics, Pen pen, Brush backgroundBrush, Brush textBrush, Font font) { RectangleF nodeRectangle = GetNodeRectangle(new PointF(x, y)); Rectangle actualNodeRectangle = Rectangle.Round(nodeRectangle); if(Selected) { graphics.FillRectangle(Brushes.White, actualNodeRectangle); ControlPaint.DrawBorder3D ( graphics, actualNodeRectangle, Border3DStyle.Sunken ); } else { graphics.FillRectangle(Brushes.LightGray, actualNodeRectangle); ControlPaint.DrawBorder3D ( graphics, actualNodeRectangle, Border3DStyle.Raised ); } nodeRectangle.Inflate(-5, -5); nodeRectangle = GetImageRectangle(Image, nodeRectangle); graphics.DrawImage(Image, nodeRectangle); } #endregion ////////////////////////////////////////////////////////////////////////////////////////// Private #region 노드 사각형 구하기 - GetNodeRectangle(centerPoint) /// <summary> /// 노드 사각형 구하기 /// </summary> /// <param name="centerPoint">중심 포인트</param> /// <returns>노드 사각형</returns> private RectangleF GetNodeRectangle(PointF centerPoint) { return new RectangleF ( centerPoint.X - NodeSize.Width / 2, centerPoint.Y - NodeSize.Height / 2, NodeSize.Width, NodeSize.Height ); } #endregion #region 이미지 사각형 구하기 - GetImageRectangle(image, layoutRectangle) /// <summary> /// 이미지 사각형 구하기 /// </summary> /// <param name="image">이미지</param> /// <param name="layoutRectangle">레이아웃 사각형</param> /// <returns>이미지 사각형</returns> private RectangleF GetImageRectangle(Image image, RectangleF layoutRectangle) { float imageWidth = image.Width; float imageHeight = image.Height; float imageAspectRatio = imageWidth / imageHeight; float rectangleAspectRatio = layoutRectangle.Width / layoutRectangle.Height; float scale = 1; if(imageAspectRatio > rectangleAspectRatio) { scale = layoutRectangle.Width / imageWidth; } else { scale = layoutRectangle.Height / imageHeight; } imageWidth *= scale; imageHeight *= scale; RectangleF imageRectangle = new RectangleF ( layoutRectangle.X + (layoutRectangle.Width - imageWidth ) / 2, layoutRectangle.Y + (layoutRectangle.Height - imageHeight) / 2, imageWidth, imageHeight ); return imageRectangle; } #endregion } } |
▶ MainForm.cs
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using System; using System.Drawing; using System.Drawing.Drawing2D; using System.Drawing.Text; using System.Windows.Forms; namespace TestProject { /// <summary> /// 메인 폼 /// </summary> public partial class MainForm : Form { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// 루트 노드 /// </summary> private TreeNode<ImageNode> rootNode = new TreeNode<ImageNode> ( new ImageNode ( "Queen Elizabeth II && Prince Philip Duke of Edinburgh", Properties.Resources.Elizabeth_Philip ) ); /// <summary> /// 선택 노드 /// </summary> private TreeNode<ImageNode> selectedNode; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - MainForm() /// <summary> /// 생성자 /// </summary> public MainForm() { InitializeComponent(); #region 이벤트를 설정한다. Load += Form_Load; this.canvasPictureBox.MouseClick += canvasPictureBox_MouseClick; #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) { TreeNode<ImageNode> charlesNode = new TreeNode<ImageNode> ( new ImageNode ( "Prince Charles, Prince of Wales", Properties.Resources.Charles ) ); TreeNode<ImageNode> anneNode = new TreeNode<ImageNode> ( new ImageNode ( "Princess Anne", Properties.Resources.Anne ) ); TreeNode<ImageNode> andrewNode = new TreeNode<ImageNode> ( new ImageNode ( "Prince Andrew, Duke of York", Properties.Resources.Andrew ) ); TreeNode<ImageNode> edwardNode = new TreeNode<ImageNode> ( new ImageNode ( "Prince Edward, Earl of Wessex", Properties.Resources.Edward ) ); TreeNode<ImageNode> williamNode = new TreeNode<ImageNode> ( new ImageNode ( "Prince William", Properties.Resources.William ) ); TreeNode<ImageNode> harryNode = new TreeNode<ImageNode> ( new ImageNode ( "Prince Henry (Harry)", Properties.Resources.Harry ) ); TreeNode<ImageNode> peterNode = new TreeNode<ImageNode> ( new ImageNode ( "Peter Phillips", Properties.Resources.Peter ) ); TreeNode<ImageNode> zaraNode = new TreeNode<ImageNode> ( new ImageNode ( "Zara Phillips", Properties.Resources.Zara ) ); TreeNode<ImageNode> beatriceNode = new TreeNode<ImageNode> ( new ImageNode ( "Princess Beatrice", Properties.Resources.Beatrice ) ); TreeNode<ImageNode> eugenieNode = new TreeNode<ImageNode> ( new ImageNode ( "Princess Eugenie", Properties.Resources.Eugenie ) ); TreeNode<ImageNode> louiseNode = new TreeNode<ImageNode> ( new ImageNode ( "Lady Louise", Properties.Resources.Louise ) ); TreeNode<ImageNode> severnNode = new TreeNode<ImageNode> ( new ImageNode ( "Viscount Severn", Properties.Resources.Severn ) ); this.rootNode.AddChild(charlesNode); charlesNode.AddChild(williamNode); charlesNode.AddChild(harryNode); this.rootNode.AddChild(anneNode); anneNode.AddChild(peterNode); anneNode.AddChild(zaraNode); this.rootNode.AddChild(andrewNode); andrewNode.AddChild(beatriceNode); andrewNode.AddChild(eugenieNode); this.rootNode.AddChild(edwardNode); edwardNode.AddChild(louiseNode); edwardNode.AddChild(severnNode); this.contentPanel.AutoScroll = true; this.canvasPictureBox.Location = new Point(0, 0); this.canvasPictureBox.SizeMode = PictureBoxSizeMode.AutoSize; this.canvasPictureBox.Image = DrawTree(rootNode, 5); } #endregion #region 캔버스 픽처 박스 마우스 클릭시 처리하기 - canvasPictureBox_MouseClick(sender, e) /// <summary> /// 캔버스 픽처 박스 마우스 클릭시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void canvasPictureBox_MouseClick(object sender, MouseEventArgs e) { FindNodeUnderMouse(e.Location); } #endregion //////////////////////////////////////////////////////////////////////////////// Function #region 트리 그리기 - DrawTree(rootNode, margin) /// <summary> /// 트리 그리기 /// </summary> /// <param name="rootNode">루트 노드</param> /// <param name="margin">마진</param> /// <returns>비트맵</returns> private Bitmap DrawTree(TreeNode<ImageNode> rootNode, int margin) { float minimumX = margin; float minimumY = margin; using(Bitmap sourceBitmap = new Bitmap(10, 10)) { using(Graphics sourceGraphics = Graphics.FromImage(sourceBitmap)) { rootNode.Arrange(sourceGraphics, ref minimumX, ref minimumY); } } int width = (int)minimumX + margin; int height = (int)minimumY + margin; Bitmap targetBitmap = new Bitmap(width, height); using(Graphics tragetBitmap = Graphics.FromImage(targetBitmap)) { tragetBitmap.SmoothingMode = SmoothingMode.AntiAlias; tragetBitmap.TextRenderingHint = TextRenderingHint.AntiAliasGridFit; rootNode.DrawTree(tragetBitmap); } return targetBitmap; } #endregion #region 마우스 아래 노드 찾기 - FindNodeUnderMouse(point) /// <summary> /// 마우스 아래 노드 찾기 /// </summary> /// <param name="point">포인트</param> private void FindNodeUnderMouse(PointF point) { if(selectedNode != null) { this.selectedNode.Data.Selected = false; this.statusLabel.Text = string.Empty; } using(Graphics graphics = this.canvasPictureBox.CreateGraphics()) { this.selectedNode = this.rootNode.GetNode(graphics, point); } if(this.selectedNode != null) { this.selectedNode.Data.Selected = true; this.statusLabel.Text = this.selectedNode.Data.Description; } this.canvasPictureBox.Refresh(); } #endregion } } |
