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- using InABox.Core;
- using netDxf;
- using netDxf.Tables;
- using Svg;
- using Svg.Transforms;
- using Syncfusion.Pdf;
- using Syncfusion.Pdf.Graphics;
- using Syncfusion.Pdf.Parsing;
- using System;
- using System.Collections.Generic;
- using System.Drawing;
- using System.Drawing.Drawing2D;
- using System.Linq;
- using System.Numerics;
- using System.Text;
- using System.Threading.Tasks;
- using FontStyle = System.Drawing.FontStyle;
- using Vector2 = System.Numerics.Vector2;
- using Vector3 = System.Numerics.Vector3;
- using Vector4 = System.Numerics.Vector4;
- using SPdfGraphics = Syncfusion.Pdf.Graphics.PdfGraphics;
- using Syncfusion.Pdf.Tables;
- using netDxf.Entities;
- namespace InABox.Dxf;
- public enum TextAlignment
- {
- Left,
- Center,
- Right,
- Fit,
- Justify
- }
- public enum TextLineAlignment
- {
- Top,
- Center,
- Bottom,
- Baseline
- }
- public class TextFormat
- {
- public TextAlignment Alignment { get; set; } = TextAlignment.Left;
- public TextLineAlignment LineAlignment { get; set; } = TextLineAlignment.Top;
- }
- public class TransformData
- {
- public DxfData Data { get; set; }
- private Stack<Matrix4x4> MatrixStack = new();
- public Matrix4x4 Transform { get; private set; } = Matrix4x4.Identity;
- public void PushTransform()
- {
- MatrixStack.Push(Transform);
- }
- public void TransformBy(Matrix4x4 matrix)
- {
- Transform = matrix * Transform;
- }
- protected virtual void UpdateTransform()
- {
- }
- protected Matrix ProjectMatrix(Matrix4x4 matrix)
- {
- var elMatrix = new Matrix3x2();
- elMatrix.M11 = (float)matrix.M11;
- elMatrix.M12 = (float)matrix.M12;
- elMatrix.M21 = (float)matrix.M21;
- elMatrix.M22 = (float)matrix.M22;
- elMatrix.M31 = (float)matrix.M41;
- elMatrix.M32 = (float)matrix.M42;
- var newMatrix = new Matrix();
- newMatrix.MatrixElements = elMatrix;
- return newMatrix;
- }
- public void PopTransform()
- {
- Transform = MatrixStack.Pop();
- UpdateTransform();
- }
- public static Matrix4x4 ArbitraryAxisMatrix(Vector3 zAxis)
- {
- if (zAxis.Equals(Vector3.UnitZ))
- {
- return Matrix4x4.Identity;
- }
- var unitY = Vector3.UnitY;
- var unitZ = Vector3.UnitZ;
- var v = ((!(Math.Abs(zAxis.X) < 1.0 / 64.0) || !(Math.Abs(zAxis.Y) < 1.0 / 64.0)) ? Vector3.Cross(unitZ, zAxis) : Vector3.Cross(unitY, zAxis));
- v = Vector3.Normalize(v);
- var vector = Vector3.Cross(zAxis, v);
- vector = Vector3.Normalize(vector);
- return new Matrix4x4(v.X, vector.X, zAxis.X, 0, v.Y, vector.Y, zAxis.Y, 0, v.Z, vector.Z, zAxis.Z, 0, 0, 0, 0, 1);
- }
- public void ArbitraryAxis(netDxf.Vector3 zAxis)
- {
- Transform = ArbitraryAxisMatrix(new((float)zAxis.X, (float)zAxis.Y, (float)zAxis.Z)) * Transform;
- UpdateTransform();
- }
- public void ArbitraryAxis(Vector3 zAxis)
- {
- Transform = ArbitraryAxisMatrix(zAxis) * Transform;
- UpdateTransform();
- }
- public void Translate(float x, float y)
- {
- Transform = Transform.Translate(x, y, 0);
- UpdateTransform();
- }
- public void Translate(PointF point)
- {
- Transform = Transform.Translate(point.X, point.Y, 0);
- UpdateTransform();
- }
- public void Rotate(float angle)
- {
- Transform = Transform.Rotate(0, 0, 1, angle);
- UpdateTransform();
- }
- public void Scale(float scale)
- {
- Scale(scale, scale);
- }
- public void Scale(float scaleX, float scaleY)
- {
- Transform = Transform.Scale(scaleX, scaleY, 1);
- UpdateTransform();
- }
- public PointF TransformPoint(float x, float y)
- {
- var nVec = Vector4.Transform(new Vector4(x, y, 0, 1), Transform);
- return new(nVec.X, nVec.Y);
- }
- public PointF TransformPoint(PointF vec)
- {
- var nVec = Vector4.Transform(new Vector4(vec.X, vec.Y, 0, 1), Transform);
- return new(nVec.X, nVec.Y);
- }
- public PointF TransformPoint(netDxf.Vector2 vec)
- {
- var nVec = Vector4.Transform(new Vector4((float)vec.X, (float)vec.Y, 0, 1), Transform);
- return new(nVec.X, nVec.Y);
- }
- public PointF TransformPoint(netDxf.Vector3 vec)
- {
- var nVec = Vector4.Transform(new Vector4((float)vec.X, (float)vec.Y, (float)vec.Z, 1), Transform);
- return new(nVec.X, nVec.Y);
- }
- public PointF TransformVec(PointF vec)
- {
- var nVec = Vector4.Transform(new Vector4(vec.X, vec.Y, 0, 0), Transform);
- return new(nVec.X, nVec.Y);
- }
- public Vector2 TransformVec(Vector2 vec)
- {
- var nVec = Vector4.Transform(new Vector4(vec.X, vec.Y, 0, 0), Transform);
- return new(nVec.X, nVec.Y);
- }
- public float ScaleFactor()
- {
- return (TransformVec(new Vector2(1, 0))).Length();
- }
- public static PointF ConvertPoint(netDxf.Vector2 vec)
- {
- return new PointF((float)vec.X, (float)vec.Y);
- }
- public static PointF ConvertPoint(netDxf.Vector3 vec)
- {
- return new PointF((float)vec.X, (float)vec.Y);
- }
- }
- public class DrawData : TransformData
- {
- private IGraphics _graphics;
- public IGraphics Graphics
- {
- get => _graphics;
- set
- {
- _graphics = value;
- _graphics.DrawData = this;
- }
- }
- private Stack<Color> _blockColours = new();
- public Color BlockColour { get; set; } = Color.Black;
- public void PushBlockColour(AciColor colour, EntityObject? obj)
- {
- _blockColours.Push(BlockColour);
- BlockColour = ResolveColour(colour, obj);
- }
- public void PushBlockColour(Color colour)
- {
- _blockColours.Push(BlockColour);
- BlockColour = colour;
- }
- public void PopBlockColour()
- {
- BlockColour = _blockColours.Pop();
- }
- public Color ResolveColour(AciColor colour, EntityObject? obj)
- {
- if (colour.IsByBlock)
- {
- return _blockColours.Count > 0
- ? BlockColour
- : (obj?.Layer is null ? Color.Black : ResolveColour(obj.Layer.Color, null));
- }
- else if (colour.IsByLayer)
- {
- return obj?.Layer is null ? Color.Black : ResolveColour(obj.Layer.Color, null);
- }
- if(colour.Index == 7)
- {
- return Color.Black;
- }
- else
- {
- return colour.ToColor();
- }
- }
- protected override void UpdateTransform()
- {
- base.UpdateTransform();
- Graphics.SetTransform(ProjectMatrix(Transform));
- }
- }
- public interface IGraphics
- {
- DrawData DrawData { get; set; }
- void SetTransform(Matrix transform);
- void DrawLine(Color color, float thickness, params PointF[] points);
- void DrawPoint(Color color, float thickness, PointF point);
- void FillPolygon(Color color, params PointF[] points);
- /// <summary>
- /// Set the current font to be the default font at the given <paramref name="fontSize"/>.
- /// </summary>
- /// <param name="fontSize">Size of the new font.</param>
- void SetFont(float fontSize, FontStyle fontStyle = FontStyle.Regular);
- void SetFont(string fontName, float fontSize, FontStyle fontStyle = FontStyle.Regular);
- void DrawText(string text, Color color, PointF position, float rotation, TextFormat format);
- void DrawText(string text, Color color, PointF position, float rotation, float width, PointF scale);
- void DrawText(string text, Color color, PointF position, float rotation, SizeF size, PointF scale);
- void Clear(Color color);
- void Finish();
- }
- public class GdiGraphics : IGraphics
- {
- public Graphics Graphics { get; set; }
- private Font Font { get; set; }
- public DrawData DrawData { get; set; }
- public GdiGraphics(Graphics graphics)
- {
- Graphics = graphics;
- }
- // public float ConvertThickness(float thickness)
- // {
- // return thickness == 0 ? 1f / ScaleFactor() : thickness;
- // }
- public void DrawLine(Color color, float thickness, params PointF[] points)
- {
- if(points.Length == 2)
- {
- Graphics.DrawLine(new Pen(color, thickness), points[0], points[1]);
- }
- else
- {
- Graphics.DrawLines(new Pen(color, thickness), points);
- }
- }
- public void DrawPoint(Color color, float thickness, PointF point)
- {
- Graphics.FillEllipse(new SolidBrush(color), point.X - thickness / 2, point.Y - thickness / 2, point.X + thickness / 2, point.Y + thickness / 2);
- }
- private void TransformTextVertical(string text, Font font, PointF position, float rotation, TextFormat format)
- {
- DrawData.Translate(position);
- DrawData.Rotate(rotation);
- DrawData.Scale(1, -1);
- var ascentRatio = (float)font.FontFamily.GetCellAscent(font.Style) / font.FontFamily.GetLineSpacing(font.Style);
- var size = Graphics.MeasureString(text, font, new PointF(), StringFormat.GenericTypographic);
- var scaleFactor = ascentRatio * font.Height / size.Height;
- DrawData.Scale(scaleFactor, scaleFactor);
- switch (format.LineAlignment)
- {
- case TextLineAlignment.Center:
- DrawData.Translate(new PointF(0, -size.Height / 2));
- break;
- case TextLineAlignment.Bottom:
- DrawData.Translate(new PointF(0, -size.Height));
- break;
- case TextLineAlignment.Baseline:
- var baseline = ascentRatio * font.Height;
- DrawData.Translate(new PointF(0, -baseline));
- break;
- case TextLineAlignment.Top:
- baseline = ascentRatio * font.Height;
- var lineSpace = font.FontFamily.GetLineSpacing(font.Style);
- var ratio = font.GetHeight(Graphics) / lineSpace;
- DrawData.Translate(new PointF(0, -baseline + font.FontFamily.GetCellAscent(font.Style) * ratio));
- break;
- }
- }
- public void DrawText(string text, Color color, PointF position, float rotation, TextFormat format)
- {
- if (text.IsNullOrWhiteSpace())
- {
- return;
- }
- DrawData.PushTransform();
- TransformTextVertical(text, Font, position, rotation, format);
- var pos = 0;
- foreach(var line in text.Split(new char[] { '\n', '\r' }, StringSplitOptions.RemoveEmptyEntries | StringSplitOptions.TrimEntries))
- {
- DrawData.PushTransform();
- DrawData.Translate(0, pos * Font.Height);
- var size = Graphics.MeasureString(line, Font);
- switch (format.Alignment)
- {
- case TextAlignment.Left:
- break;
- case TextAlignment.Center:
- DrawData.Translate(new PointF(-(float)size.Width / 2, 0));
- break;
- case TextAlignment.Right:
- DrawData.Translate(new PointF(-(float)size.Width, 0));
- break;
- }
- Graphics.DrawString(line, Font, new SolidBrush(color), new PointF(0, 0), StringFormat.GenericTypographic);
- DrawData.PopTransform();
- ++pos;
- }
- DrawData.PopTransform();
- }
- public void DrawText(string text, Color color, PointF position, float rotation, float width, PointF scale)
- {
- var size = Graphics.MeasureString(text, Font, new PointF(), StringFormat.GenericTypographic);
- DrawText(text, color, position, rotation, new SizeF(width, size.Height * width / size.Width), scale);
- }
- public void DrawText(string text, Color color, PointF position, float rotation, SizeF size, PointF scale)
- {
- DrawData.PushTransform();
- DrawData.Translate(position);
- DrawData.Rotate(rotation);
- DrawData.Scale(1, -1);
- var (width, height) = (size.Width, size.Height);
- DrawData.Translate(width / 2, height / 2);
- DrawData.Scale(scale.X, scale.Y);
- DrawData.Translate(-width / 2, -height / 2);
- DrawData.Scale(width / size.Width, height / size.Height);
- Graphics.DrawString(text, Font, new SolidBrush(color), new PointF(0, 0), StringFormat.GenericTypographic);
- DrawData.PopTransform();
- }
- public void FillPolygon(Color color, params PointF[] points)
- {
- Graphics.FillPolygon(new SolidBrush(color), points);
- }
- public void SetFont(string fontName, float fontSize, FontStyle fontStyle)
- {
- var fontFamily = new FontFamily(fontName);
- var font = new Font(fontFamily, fontSize, fontStyle);
- Font = font;
- }
- public void SetFont(float fontSize, FontStyle fontStyle)
- {
- var fontFamily = SystemFonts.DefaultFont.FontFamily;
- var font = new Font(fontFamily, fontSize, fontStyle);
- Font = font;
- }
- public void SetTransform(Matrix transform)
- {
- Graphics.Transform = transform;
- }
- public void Clear(Color color)
- {
- Graphics.Clear(color);
- }
- public void Finish()
- {
- }
- }
- public class PdfGraphics : IGraphics
- {
- public DrawData DrawData { get; set; }
- private SPdfGraphics Graphics { get; set; }
- private Matrix _transform = new();
- private PdfFont _font = new PdfStandardFont(PdfFontFamily.Helvetica, 12, PdfFontStyle.Regular);
- private float _ascentRatio = 0;
- public PdfGraphics(SPdfGraphics graphics)
- {
- Graphics = graphics;
- }
- public void Clear(Color color)
- {
- }
- public void SetTransform(Matrix transform)
- {
- _transform = transform;
- }
- public void DrawLine(Color color, float thickness, params PointF[] points)
- {
- _transform.TransformPoints(points);
- var pen = new PdfPen(color, thickness);
- for(int i = 0; i < points.Length - 1; ++i)
- {
- Graphics.DrawLine(pen, points[i], points[i + 1]);
- }
- }
- public void DrawPoint(Color color, float thickness, PointF point)
- {
- var transformed = _transform.Transform(point);
- var brush = new PdfSolidBrush(color);
- Graphics.DrawEllipse(brush, transformed.X - thickness / 2, transformed.Y - thickness / 2, transformed.X + thickness / 2, transformed.Y + thickness / 2);
- }
- public void SetFont(float fontSize, FontStyle fontStyle = FontStyle.Regular)
- {
- var font = new Font(SystemFonts.DefaultFont.FontFamily, fontSize);
- _ascentRatio = (float)font.FontFamily.GetCellAscent(font.Style) / (float)font.FontFamily.GetLineSpacing(font.Style);
- _font = new PdfTrueTypeFont(font);
- }
- public void SetFont(string fontName, float fontSize, FontStyle fontStyle = FontStyle.Regular)
- {
- var font = new Font(fontName, fontSize);
- _ascentRatio = (float)font.FontFamily.GetCellAscent(font.Style) / (float)font.FontFamily.GetLineSpacing(font.Style);
- _font = new PdfTrueTypeFont(new Font(fontName, fontSize));
- }
- public void DrawText(string text, Color color, PointF position, float rotation, TextFormat format)
- {
- var fmt = new PdfStringFormat();
- fmt.Alignment = format.Alignment switch
- {
- TextAlignment.Center => PdfTextAlignment.Center,
- TextAlignment.Right => PdfTextAlignment.Right,
- TextAlignment.Justify => PdfTextAlignment.Justify,
- _ => PdfTextAlignment.Left,
- };
- fmt.LineAlignment = format.LineAlignment switch
- {
- TextLineAlignment.Center => PdfVerticalAlignment.Middle,
- TextLineAlignment.Bottom => PdfVerticalAlignment.Bottom,
- TextLineAlignment.Baseline => PdfVerticalAlignment.Bottom,
- _ => PdfVerticalAlignment.Top
- };
- if(format.LineAlignment == TextLineAlignment.Baseline)
- {
- fmt.EnableBaseline = true;
- }
- Graphics.Save();
- var point = _transform.Transform(position);
- Graphics.TranslateTransform(point.X, point.Y);
- Graphics.RotateTransform(_transform.GetRotation() - rotation);
- var scaled = _transform.GetScale();
- Graphics.ScaleTransform(scaled / _ascentRatio, scaled / _ascentRatio);
- Graphics.DrawString(text, _font, new PdfSolidBrush(color), new PointF(), fmt);
- Graphics.Restore();
- }
- public void DrawText(string text, Color color, PointF position, float rotation, float width, PointF scale)
- {
- Graphics.Save();
- var point = _transform.Transform(position);
- Graphics.TranslateTransform(point.X, point.Y);
- Graphics.RotateTransform(_transform.GetRotation() - rotation);
- var scaleFactor = (_font.Height / _font.Size) * _transform.GetScale();
- Graphics.ScaleTransform(scaleFactor, scaleFactor * scale.Y);
- if(scale.X != 1)
- {
- Graphics.TranslateTransform(width / 2, 0);
- Graphics.ScaleTransform(scale.X, 1);
- Graphics.TranslateTransform(-width / 2, 0);
- }
- Graphics.DrawString(text, _font, new PdfSolidBrush(color), new RectangleF(0, 0, width, float.MaxValue), new PdfStringFormat
- {
- Alignment = PdfTextAlignment.Justify,
- LineAlignment = PdfVerticalAlignment.Top,
- EnableBaseline = true
- });
- Graphics.Restore();
- }
- public void DrawText(string text, Color color, PointF position, float rotation, SizeF size, PointF scale)
- {
- Graphics.Save();
- var point = _transform.Transform(position);
- Graphics.TranslateTransform(point.X, point.Y);
- Graphics.RotateTransform(_transform.GetRotation() - rotation);
- var scaleFactor = (_font.Height / _font.Size) * _transform.GetScale();
- Graphics.ScaleTransform(scaleFactor, scaleFactor * scale.Y);
- if(scale.X != 1 || scale.Y != 1)
- {
- Graphics.TranslateTransform(size.Width / 2, size.Height / 2);
- Graphics.ScaleTransform(scale.X, 1);
- Graphics.TranslateTransform(-size.Width / 2, size.Height / 2);
- }
- Graphics.DrawString(text, _font, new PdfSolidBrush(color), new RectangleF(0, 0, size.Width, size.Height), new PdfStringFormat
- {
- Alignment = PdfTextAlignment.Justify,
- LineAlignment = PdfVerticalAlignment.Top,
- EnableBaseline = true
- });
- Graphics.Restore();
- }
- public void FillPolygon(Color color, params PointF[] points)
- {
- _transform.TransformPoints(points);
- var brush = new PdfSolidBrush(color);
- Graphics.DrawPolygon(brush, points);
- }
- public void Finish()
- {
- }
- }
- public class SvgGraphics : IGraphics
- {
- public DrawData DrawData { get; set; }
- public SvgDocument Document { get; set; }
- private SvgMatrix _transform = new(new Matrix().Elements.ToList());
- private SvgGroup _group;
- private Matrix _groupTransform = new();
- private static string[][] _groupProps = new[]
- {
- new[] { "stroke-width", "style" },
- new[] { "vector-effect" }
- };
- public SvgGraphics(SvgDocument document)
- {
- Document = document;
- _group = new SvgGroup();
- Document.Stroke = new SvgColourServer(Color.Black);
- }
- private void PushGroup()
- {
- if(_group.Children.Count > 0)
- {
- Document.Children.Add(_group);
- }
- }
- private void AddChild(SvgElement item)
- {
- var transMat = _transform.Matrix;
- if(!Equals(transMat, _groupTransform))
- {
- PushGroup();
- _group = new();
- _group.Transforms = new() { _transform };
- _groupTransform = transMat;
- }
- _group.Children.Add(item);
- }
- public void SetTransform(Matrix transform)
- {
- _transform = new(transform.Elements.ToList());
- }
- public void DrawLine(Color color, float thickness, params PointF[] points)
- {
- if(points.Length == 2)
- {
- var line = new SvgLine
- {
- StartX = points[0].X,
- StartY = points[0].Y,
- EndX = points[1].X,
- EndY = points[1].Y
- };
- if(color != Color.Black)
- {
- line.Stroke = new SvgColourServer(color);
- }
- if(thickness == 0)
- {
- line.StrokeWidth = 1;
- line.CustomAttributes.Add("vector-effect", "non-scaling-stroke");
- }
- else
- {
- line.StrokeWidth = thickness;
- }
- AddChild(line);
- }
- else
- {
- var line = new SvgPolyline();
- if(color != Color.Black)
- {
- line.Stroke = new SvgColourServer(color);
- }
- foreach(var point in points)
- {
- line.Points.Add(point.X);
- line.Points.Add(point.Y);
- }
- if(thickness == 0)
- {
- line.StrokeWidth = 1;
- line.CustomAttributes.Add("vector-effect", "non-scaling-stroke");
- }
- else
- {
- line.StrokeWidth = thickness;
- }
- AddChild(line);
- }
- }
- public void DrawPoint(Color color, float thickness, PointF point)
- {
- }
- public void FillPolygon(Color color, params PointF[] points)
- {
- }
- public void SetFont(float fontSize, FontStyle fontStyle = FontStyle.Regular)
- {
- }
- public void SetFont(string fontName, float fontSize, FontStyle fontStyle = FontStyle.Regular)
- {
- }
- public void DrawText(string text, Color color, PointF position, float rotation, TextFormat format)
- {
- }
- public void Clear(Color color)
- {
- }
- public void Finish()
- {
- PushGroup();
- }
- public void DrawText(string text, Color color, PointF position, float rotation, float width, PointF scale)
- {
- }
- public void DrawText(string text, Color color, PointF position, float rotation, SizeF size, PointF scale)
- {
- }
- }
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