■ Bitmap 클래스에서 스크롤 가능한 육각형 몽타주 비트맵을 사용하는 방법을 보여준다.
▶ HexagonHelper.cs
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using System; using System.Drawing; using System.Drawing.Drawing2D; namespace TestProject { /// <summary> /// 육각형 헬퍼 /// </summary> public static class HexagonHelper { //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Static //////////////////////////////////////////////////////////////////////////////// Public #region 육각형 너비 구하기 - GetHexgonWidth(height) /// <summary> /// 육각형 너비 구하기 /// </summary> /// <param name="height">높이</param> /// <returns>육각형 너비</returns> public static float GetHexgonWidth(float height) { return (float)(4 * (height / 2 / Math.Sqrt(3))); } #endregion #region 육각형 인덱스 설정하기 - SetHexgonIndex(x, y, height, row, column) /// <summary> /// 육각형 인덱스 설정하기 /// </summary> /// <param name="x">X</param> /// <param name="y">Y</param> /// <param name="height">육각형 높이</param> /// <param name="row">행</param> /// <param name="column">열</param> public static void SetHexgonIndex(float x, float y, float height, out int row, out int column) { float width = GetHexgonWidth(height); column = (int)(x / (width * 0.75f)); if(column % 2 == 0) { row = (int)Math.Floor(y / height); } else { row = (int)Math.Floor((y - height / 2) / height); } float testX = column * width * 0.75f; float testY = row * height; if(column % 2 != 0) { testY += height / 2; } bool isAbove = false; bool isBelow = false; float deltaX = x - testX; if(deltaX < width / 4) { float deltaY = y - (testY + height / 2); if(deltaX < 0.001) { if(deltaY < 0) { isAbove = true; } if(deltaY > 0) { isBelow = true; } } else if(deltaY < 0) { if(-deltaY / deltaX > Math.Sqrt(3)) { isAbove = true; } } else { if(deltaY / deltaX > Math.Sqrt(3)) { isBelow = true; } } } if(isAbove) { if(column % 2 == 0) { row--; } column--; } else if(isBelow) { if(column % 2 != 0) { row++; } column--; } } #endregion #region 포인트 배열 구하기 - GetPointArray(height, row, column, minimumX, minimumY) /// <summary> /// 포인트 배열 구하기 /// </summary> /// <param name="height">육각형 높이</param> /// <param name="row">행</param> /// <param name="column">열</param> /// <param name="minimumX">최소 X</param> /// <param name="minimumY">최소 Y</param> /// <returns>포인트 배열</returns> public static PointF[] GetPointArray(float height, float row, float column, float minimumX, float minimumY) { float width = GetHexgonWidth(height); float y = height / 2; float x = 0; y += row * height; if(column % 2 != 0) { y += height / 2; } x += column * (width * 0.75f); return new PointF[] { new PointF(minimumX + x , minimumY + y ), new PointF(minimumX + x + width * 0.25f, minimumY + y - height / 2), new PointF(minimumX + x + width * 0.75f, minimumY + y - height / 2), new PointF(minimumX + x + width , minimumY + y ), new PointF(minimumX + x + width * 0.75f, minimumY + y + height / 2), new PointF(minimumX + x + width * 0.25f, minimumY + y + height / 2) }; } #endregion #region 육각형 그리드 그리기 - DrawHexgonGrid(graphics, pen, minimumX, maximumX, minimumY, maximumY, height) /// <summary> /// 육각형 그리드 그리기 /// </summary> /// <param name="graphics">그래픽스</param> /// <param name="pen">펜</param> /// <param name="minimumX">최소 X</param> /// <param name="maximumX">최대 X</param> /// <param name="minimumY">최소 Y</param> /// <param name="maximumY">최대 Y</param> /// <param name="height">육각형 높이</param> public static void DrawHexgonGrid(Graphics graphics, Pen pen, float minimumX, float maximumX, float minimumY, float maximumY, float height) { for(int row = 0; ; row++) { PointF[] pointArray = HexagonHelper.GetPointArray(height, row, 0, minimumX, minimumY); if(pointArray[4].Y > maximumY) { break; } for(int column = 0; ; column++) { pointArray = HexagonHelper.GetPointArray(height, row, column, minimumX, minimumX); if(pointArray[3].X > maximumX) { break; } if(pointArray[4].Y <= maximumY) { graphics.DrawPolygon(pen, pointArray); } } } } #endregion #region 다각형 내에서 이미지 그리기 - DrawImageInPolygon(graphcis, pointArray, image) /// <summary> /// 다각형 내에서 이미지 그리기 /// </summary> /// <param name="graphcis">그래픽스</param> /// <param name="pointArray">포인트 배열</param> /// <param name="image">이미지</param> public static void DrawImageInPolygon(Graphics graphcis, PointF[] pointArray, Image image) { float minimumX; float maximumX; float minimumY; float maximumY; SetPolygonBoundRectangle(pointArray, out minimumX, out maximumX, out minimumY, out maximumY); float width = maximumX - minimumX; float height = maximumY - minimumY; float centerX = (minimumX + maximumX) / 2f; float centerY = (minimumY + maximumY) / 2f; float scaleX = width / image.Width; float scaleY = height / image.Height; float scale = Math.Max(scaleX, scaleY); float scaledWdth = image.Width * scale; float scaledHeight = image.Height * scale; float radiusX = scaledWdth / 2f; float radiusY = scaledHeight / 2f; RectangleF sourceRectangle = new RectangleF(0, 0, image.Width, image.Height); PointF[] targetPointArray = { new PointF(centerX - radiusX, centerY - radiusY), new PointF(centerX + radiusX, centerY - radiusY), new PointF(centerX - radiusX, centerY + radiusY) }; GraphicsPath graphicsPath = new GraphicsPath(); graphicsPath.AddPolygon(pointArray); GraphicsState graphicsState = graphcis.Save(); graphcis.SetClip(graphicsPath); graphcis.DrawImage(image, targetPointArray, sourceRectangle, GraphicsUnit.Pixel); graphcis.Restore(graphicsState); } #endregion //////////////////////////////////////////////////////////////////////////////// Private #region 다각형 테두리 사각형 설정하기 - SetPolygonBoundRectangle(pointArray, minimumX, maximumX, minimumY, maximumY) /// <summary> /// 다각형 테두리 사각형 설정하기 /// </summary> /// <param name="pointArray">포인트 배열</param> /// <param name="minimumX">최소 X</param> /// <param name="maximumX">최대 X</param> /// <param name="minimumY">최소 Y</param> /// <param name="maximumY">최대 Y</param> private static void SetPolygonBoundRectangle(PointF[] pointArray, out float minimumX, out float maximumX, out float minimumY, out float maximumY) { minimumX = pointArray[0].X; maximumX = minimumX; minimumY = pointArray[0].Y; maximumY = minimumY; foreach(PointF point in pointArray) { if(minimumX > point.X) { minimumX = point.X; } if(maximumX < point.X) { maximumX = point.X; } if(minimumY > point.Y) { minimumY = point.Y; } if(maximumY < point.Y) { maximumY = point.Y; } } } #endregion } } |
▶ Hexagon.cs
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using System.Drawing; using System.IO; namespace TestProject { /// <summary> /// 육각형 /// </summary> public class Hexagon { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Public #region Field /// <summary> /// 행 /// </summary> public int Row; /// <summary> /// 열 /// </summary> public int Column; /// <summary> /// 비트맵 /// </summary> public Bitmap Bitmap; /// <summary> /// 파일 경로 /// </summary> public string FilePath; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - Hexagon(row, column, bitmap, filePath) /// <summary> /// 생성자 /// </summary> /// <param name="row">행</param> /// <param name="column">열</param> /// <param name="bitmap">비트맵</param> /// <param name="filePath">파일 경로</param> public Hexagon(int row, int column, Bitmap bitmap, string filePath) { Row = row; Column = column; Bitmap = bitmap; FileInfo fileInfo = new FileInfo(filePath); FilePath = fileInfo.Name; } #endregion } } |
▶ MainForm.cs
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using System; using System.Collections.Generic; using System.Drawing; using System.Drawing.Drawing2D; using System.Drawing.Imaging; using System.IO; using System.Windows.Forms; namespace TestProject { /// <summary> /// 메인 폼 /// </summary> public partial class MainForm : Form { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// 육각형 높이 /// </summary> private float hexgonHeight = 200; /// <summary> /// 테두리 두께 /// </summary> private float borderThickness = 5; /// <summary> /// 육각형 리스트 /// </summary> private List<Hexagon> hexagonList = new List<Hexagon>(); /// <summary> /// 행 수 /// </summary> private int rowCount = 1; /// <summary> /// 열 수 /// </summary> private int columnCount = 1; /// <summary> /// 비트맵 /// </summary> private Bitmap bitmap = null; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor ////////////////////////////////////////////////////////////////////////////////////////// Public #region 생성자 - MainForm() /// <summary> /// 생성자 /// </summary> public MainForm() { InitializeComponent(); this.openMenuItem.Click += openMenuItem_Click; this.saveAsMenuItem.Click += saveAsMenuItem_Click; this.exitMenuItem.Click += exitMenuItem_Click; this.hexagonHeightTextBox.TextChanged += hexagonHeightTextBox_TextChanged; this.borderThicknessTextBox.TextChanged += hexagonHeightTextBox_TextChanged; this.borderColorPictureBox.Click += borderColorPictureBox_Click; this.backgroundColorPictureBox.Click += backgroundColorPictureBox_Click; this.createButton.Click += createButton_Click; this.pictureBox.MouseMove += pictureBox_MouseMove; this.pictureBox.MouseClick += pictureBox_MouseClick; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Private //////////////////////////////////////////////////////////////////////////////// Event #region 디렉토리에서 파일 열기 메뉴 항목 클릭시 처리하기 - openMenuItem_Click(sender, e) /// <summary> /// 디렉토리에서 파일 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.openFileDialog1.ShowDialog() == DialogResult.OK) { FileInfo fileInfo1 = new FileInfo(this.openFileDialog1.FileName); DirectoryInfo directoryInfo = fileInfo1.Directory; List<FileInfo> fileInfoList = new List<FileInfo>(); foreach(FileInfo fileInfo2 in directoryInfo.GetFiles()) { string fileExtension = fileInfo2.Extension.ToLower().Replace(".", ""); if ( (fileExtension == "bmp" ) || (fileExtension == "png" ) || (fileExtension == "jpg" ) || (fileExtension == "jpeg") || (fileExtension == "gif" ) || (fileExtension == "tiff") ) { fileInfoList.Add(fileInfo2); } } int rowCount = (int)Math.Sqrt(fileInfoList.Count); int columnCount = rowCount; if(rowCount * columnCount < fileInfoList.Count) { columnCount++; } if(rowCount * columnCount < fileInfoList.Count) { rowCount++; } this.hexagonList = new List<Hexagon>(); int index = 0; for(int row = 0; row < rowCount; row++) { for(int column = 0; column < columnCount; column++) { string name = fileInfoList[index].Name; string filePath = fileInfoList[index].FullName; Bitmap bitmap = LoadBitmap(filePath); this.hexagonList.Add(new Hexagon(row, column, bitmap, name)); index++; if(index >= fileInfoList.Count) { break; } } if(index >= fileInfoList.Count) { break; } } MakeGrid(); } } #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) { SaveImage(this.bitmap, this.saveFileDialog.FileName); } } #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 육각형 높이 텍스트 박스 텍스트 변경시 처리하기 - hexagonHeightTextBox_TextChanged(sender, e) /// <summary> /// 육각형 높이 텍스트 박스 텍스트 변경시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void hexagonHeightTextBox_TextChanged(object sender, EventArgs e) { float height; float thickness; if(!float.TryParse(this.hexagonHeightTextBox.Text, out height) || height < 10) { return; } if(!float.TryParse(this.borderThicknessTextBox.Text, out thickness)) { return; } this.hexgonHeight = height; this.borderThickness = thickness; this.pictureBox.Refresh(); } #endregion #region 테두리 색상 픽처 박스 클릭시 처리하기 - borderColorPictureBox_Click(sender, e) /// <summary> /// 테두리 색상 픽처 박스 클릭시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void borderColorPictureBox_Click(object sender, EventArgs e) { this.colorDialog.Color = this.borderColorPictureBox.BackColor; if(this.colorDialog.ShowDialog() == DialogResult.OK) { this.borderColorPictureBox.BackColor = this.colorDialog.Color; this.pictureBox.Refresh(); } } #endregion #region 배경 색상 픽처 박스 클릭시 처리하기 - backgroundColorPictureBox_Click(sender, e) /// <summary> /// 배경 색상 픽처 박스 클릭시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void backgroundColorPictureBox_Click(object sender, EventArgs e) { this.colorDialog.Color = this.backgroundColorPictureBox.BackColor; if(this.colorDialog.ShowDialog() == DialogResult.OK) { this.backgroundColorPictureBox.BackColor = this.colorDialog.Color; this.pictureBox.Refresh(); } } #endregion #region 생성 버튼 클릭시 처리하기 - createButton_Click(sender, e) /// <summary> /// 생성 버튼 클릭시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void createButton_Click(object sender, EventArgs e) { MakeGrid(); this.pictureBox.Visible = 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) { int row; int column; HexagonHelper.SetHexgonIndex(e.X, e.Y, this.hexgonHeight, out row, out column); int index = FindHexagon(row, column); string indexString = "(" + row.ToString() + ", " + column.ToString() + ")"; if(index < 0) { Text = $"Bitmap 클래스 : 스크롤 가능한 육각형 몽타주 비트맵 사용하기 : {indexString}"; } else { string name = this.hexagonList[index].FilePath; int position = name.IndexOf('.'); Text = $"{indexString} {name.Substring(0, position)}"; } } #endregion #region 픽처 박스 마우스 클릭시 처리하기 - pictureBox_MouseClick(sender, e) /// <summary> /// 픽처 박스 마우스 클릭시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void pictureBox_MouseClick(object sender, MouseEventArgs e) { int row; int column; HexagonHelper.SetHexgonIndex(e.X, e.Y, this.hexgonHeight, out row, out column); RemoveHexagon(row, column); if(this.openFileDialog2.ShowDialog() == DialogResult.OK) { Bitmap bitmap = LoadBitmap(openFileDialog2.FileName); this.hexagonList.Add(new Hexagon(row, column, bitmap, openFileDialog2.FileName)); } MakeGrid(); } #endregion //////////////////////////////////////////////////////////////////////////////// Function #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 그리드 테두리 사각형 찾기 - FindGridBoundRectangle(maximumX, maximumY) /// <summary> /// 그리드 테두리 사각형 찾기 /// </summary> /// <param name="maximumX">최대 X</param> /// <param name="maximumY">최대 Y</param> private void FindGridBoundRectangle(out float maximumX, out float maximumY) { maximumX = 0; maximumY = 0; float minimumX = this.borderThickness / 2f; PointF[] pointArray; pointArray = HexagonHelper.GetPointArray ( this.hexgonHeight, this.rowCount - 1, this.columnCount - 1, minimumX, minimumX ); if(maximumX < pointArray[3].X) { maximumX = pointArray[3].X; } if(maximumY < pointArray[4].Y) { maximumY = pointArray[4].Y; } pointArray = HexagonHelper.GetPointArray ( this.hexgonHeight, this.rowCount - 1, this.columnCount - 1, minimumX, minimumX ); if(maximumX < pointArray[3].X) { maximumX = pointArray[3].X; } if(maximumY < pointArray[4].Y) { maximumY = pointArray[4].Y; } maximumX += minimumX; maximumY += minimumX; } #endregion #region 그리드 그리기 - DrawGrid(graphics, maximumX, maximumY) /// <summary> /// 그리드 그리기 /// </summary> /// <param name="graphics">그래픽스</param> /// <param name="maximumX">최대 X</param> /// <param name="maximumY">최대 Y</param> private void DrawGrid(Graphics graphics, int maximumX, int maximumY) { graphics.Clear(this.backgroundColorPictureBox.BackColor); graphics.SmoothingMode = SmoothingMode.AntiAlias; float minimumX = this.borderThickness / 2f; foreach(Hexagon hexagon in this.hexagonList) { PointF[] pointArray = HexagonHelper.GetPointArray ( this.hexgonHeight, hexagon.Row, hexagon.Column, minimumX, minimumX ); if(pointArray[3].X > maximumX) { continue; } if(pointArray[4].Y > maximumY) { continue; } HexagonHelper.DrawImageInPolygon ( graphics, HexagonHelper.GetPointArray ( this.hexgonHeight, hexagon.Row, hexagon.Column, minimumX, minimumX ), hexagon.Bitmap ); } using(Pen pen = new Pen(this.borderColorPictureBox.BackColor, this.borderThickness)) { HexagonHelper.DrawHexgonGrid ( graphics, pen, minimumX, maximumX, minimumX, maximumY, this.hexgonHeight ); } } #endregion #region 그리드 만들기 - MakeGrid() /// <summary> /// 그리드 만들기 /// </summary> private void MakeGrid() { if(!int.TryParse(this.rowCountTextBox.Text, out this.rowCount)) { return; } if(!int.TryParse(this.columnCountTextBox.Text, out this.columnCount)) { return; } float maximumX; float maximumY; FindGridBoundRectangle(out maximumX, out maximumY); int width = (int)maximumX + 1; int height = (int)maximumY + 1; this.bitmap = new Bitmap(width, height); using(Graphics graphics = Graphics.FromImage(this.bitmap)) { DrawGrid(graphics, width, height); } this.pictureBox.Image = this.bitmap; this.saveAsMenuItem.Enabled = true; } #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 육각형 찾기 - FindHexagon(row, column) /// <summary> /// 육각형 찾기 /// </summary> /// <param name="row">행</param> /// <param name="column">열</param> /// <returns>인덱스</returns> private int FindHexagon(int row, int column) { for (int i = this.hexagonList.Count - 1; i >= 0; i--) { if((this.hexagonList[i].Row == row) && (this.hexagonList[i].Column == column)) { return i; } } return -1; } #endregion #region 육각형 제거하기 - RemoveHexagon(row, column) /// <summary> /// 육각형 제거하기 /// </summary> /// <param name="row">행</param> /// <param name="column">열</param> private void RemoveHexagon(int row, int column) { int index = FindHexagon(row,column); if(index >= 0) { this.hexagonList.RemoveAt(index); } } #endregion } } |
