Adding IntOrExpression

MatterControlLib/DesignTools/Sheets/SheetData.cs

@@ -0,0 +1,258 @@
+/*
+Copyright (c) 2019, Lars Brubaker, John Lewin
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice, this
+   list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright notice,
+   this list of conditions and the following disclaimer in the documentation
+   and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
+ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+The views and conclusions contained in the software and documentation are those
+of the authors and should not be interpreted as representing official policies,
+either expressed or implied, of the FreeBSD Project.
+*/
+
+using System.Collections.Generic;
+using org.mariuszgromada.math.mxparser;
+using Newtonsoft.Json;
+using System.Linq;
+
+namespace MatterHackers.MatterControl.DesignTools
+{
+	public class SheetData
+	{
+		public SheetData()
+		{
+		}
+
+		public SheetData(int width, int height)
+		{
+			this.Rows = new List<RowData>(height);
+			for (int i = 0; i < height; i++)
+			{
+				Rows.Add(new RowData(width));
+			}
+		}
+
+		public string EvaluateExpression(string expression)
+		{
+			if (!tabelCalculated)
+			{
+				Recalculate();
+			}
+
+			var evaluator = new Expression(expression);
+			AddConstants(evaluator);
+			var value = evaluator.calculate();
+
+			return value.ToString();
+		}
+
+		public string CellId(int x, int y)
+		{
+			return $"{(char)('A' + x)}{y + 1}";
+		}
+
+		public TableCell this[int x, int y]
+		{
+			get
+			{
+				return this[CellId(x, y)];
+			}
+
+			set
+			{
+				this[CellId(x, y)] = value;
+			}
+		}
+
+		public TableCell this[string cellId]
+		{
+			get
+			{
+				if (cellId.Length == 2)
+				{
+					var x = cellId.Substring(0, 1).ToUpper()[0] - 'A';
+					var y = cellId.Substring(1, 1)[0] - '1';
+					return Rows[y].Cells[x];
+				}
+				else
+				{
+					foreach (var row in Rows)
+					{
+						foreach(var cell in row.Cells)
+						{
+							if (cell.Name == cellId)
+							{
+								return cell;
+							}
+						}
+					}
+				}
+
+				return null;
+			}
+
+			set
+			{
+				if (cellId.Length == 2)
+				{
+					var x = cellId.Substring(0, 1).ToUpper()[0] - 'A';
+					var y = cellId.Substring(1, 1)[0] - '1';
+					Rows[y].Cells[x] = value;
+				}
+				else
+				{
+					foreach (var row in Rows)
+					{
+						for (int i = 0; i < row.Cells.Count; i++)
+						{
+							if (row.Cells[i].Name == cellId)
+							{
+								row.Cells[i] = value;
+							}
+						}
+					}
+				}
+			}
+		}
+
+		[JsonIgnore]
+		public int Width => Rows.Count;
+
+		[JsonIgnore]
+		public int Height => Rows[0].Cells.Count;
+
+		public class CellFormat
+		{
+			public enum DataTypes
+			{
+				String,
+				Number,
+				Curency,
+				DateTime,
+			}
+
+			public int DecimalPlaces = 10;
+			public DataTypes DataType;
+			public Agg.Font.Justification Justification;
+			public bool Bold;
+		}
+
+		public class TableCell
+		{
+			/// <summary>
+			/// The user override id for this cell
+			/// </summary>
+			public string Name;
+
+			/// <summary>
+			/// The actual content typed into the cell
+			/// </summary>
+			public string Expression = "";
+
+			/// <summary>
+			/// How to format this data in the display
+			/// </summary>
+			public CellFormat Format;
+
+			public override string ToString()
+			{
+				return Expression;
+			}
+		}
+
+		public class RowData
+		{
+			public List<TableCell> Cells = new List<TableCell>();
+
+			public RowData()
+			{
+			}
+
+			public RowData(int numItems)
+			{
+				Cells = new List<TableCell>(numItems);
+				for (int i = 0; i < numItems; i++)
+				{
+					Cells.Add(new TableCell());
+				}
+			}
+		}
+
+		public List<RowData> Rows = new List<RowData>();
+
+		Dictionary<string, double> constants = new Dictionary<string, double>();
+		private bool tabelCalculated;
+
+		private IEnumerable<(int x, int y, TableCell cell)> EnumerateCells()
+		{
+			for (int y = 0; y < Rows.Count; y++)
+			{
+				for (int x = 0; x < Rows[y].Cells.Count; x++)
+				{
+					yield return (x, y, this[x, y]);
+				}
+			}
+		}
+
+		public void Recalculate()
+		{
+			constants.Clear();
+
+			// WIP: sort the cell by reference (needs to be DAG)
+			var list = EnumerateCells().OrderByDescending(i => i.cell.Expression).ToList();
+			foreach (var xyc in list)
+			{
+				var expression = xyc.cell.Expression;
+				if (expression.StartsWith("="))
+				{
+					expression = expression.Substring(1);
+				}
+				if (expression.StartsWith("."))
+				{
+					expression = "0" + expression;
+				}
+				var evaluator = new Expression(expression);
+				AddConstants(evaluator);
+				var value = evaluator.calculate();
+				if (double.IsNaN(value)
+					|| double.IsInfinity(value))
+				{
+					value = 0;
+				}
+
+				constants.Add(CellId(xyc.x, xyc.y), value);
+				if (!string.IsNullOrEmpty(xyc.cell.Name))
+				{
+					constants.Add(xyc.cell.Name, value);
+				}
+			}
+
+			tabelCalculated = true;
+		}
+
+		private void AddConstants(Expression evaluator)
+		{
+			foreach(var kvp in constants)
+			{
+				evaluator.defineConstant(kvp.Key, kvp.Value);
+			}
+		}
+	}
+}