public override BoundaryInfo GetBoundary(IGraphics g) { SizeF valueSize = g.MeasureString(Value); if (!HasArguments) { return new BoundaryInfo { Size = valueSize, BaseLine = valueSize.Height }; } // TODO: poprawic, po zrobione UnitElement unit = (UnitElement)Arguments[0]; BoundaryInfo unitBounds = unit.GetBoundary(g); float totalWidth = valueSize.Width + unitBounds.Width; float totalHeight = Math.Max(valueSize.Height, unitBounds.Height); return new BoundaryInfo { Size = new SizeF(totalWidth, totalHeight), BaseLine = valueSize.Height }; }
public override void Paint(IGraphics g, PointF point) { g.DrawString(Value, point); if (!HasArguments) { return; } SizeF valueSize = g.MeasureString(Value); UnitElement unit = (UnitElement)Arguments.First(); BoundaryInfo unitBounds = unit.GetBoundary(g); PointF unitPoint = new PointF(point.X + valueSize.Width, point.Y); unit.Paint(g, unitPoint); }
public Element Convert(FormulaItem item) { Element element = null; if (item is ValueItem) { ValueItem i = (ValueItem)item; ValueElement e = new ValueElement(); e.Value = i.Value.ToString(); element = e; } if (item is SymbolItem) { SymbolItem i = (SymbolItem)item; SymbolElement e = new SymbolElement(); if (!string.IsNullOrEmpty(i.Symbol)) { string[] splited = i.Symbol.Split('.'); e.Symbol = splited[0]; if (splited.Length == 2) { e.Suffix = splited[1]; } } element = e; } if (item is UnitItem) { UnitItem u = (UnitItem)item; UnitElement e = new UnitElement(); e.Unit = u.Unit; element = e; } if (item is FunctionSum) { FunctionSum sum = (FunctionSum)item; SumElement sumElem = new SumElement(); for (int i = 0; i < sum.Coeffs.Count; ++i) { if (i == 0) { sumElem.Signs.Add(string.Empty); continue; } double coeff = sum.Coeffs[i]; string sign = (coeff > 0) ? "+" : "-"; sumElem.Signs.Add(sign); } element = sumElem; } if (item is FunctionMultiply) { FunctionMultiply multi = (FunctionMultiply)item; if (multi.Arguments.Count == 2 && multi.Flags[1] == false) { FractionElement fraction = new FractionElement(); element = fraction; } else { SumElement sumElem = new SumElement(); for (int i = 0; i < multi.Flags.Count; ++i) { if (i == 0) { sumElem.Signs.Add(string.Empty); continue; } bool flag = multi.Flags[i]; string sign = flag ? "x" : "/"; sumElem.Signs.Add(sign); } element = sumElem; } } if (item is FunctionSqrt) { element = new SqrtElement(); } if (item is FunctionPow) { element = new PowElement(); } if (item is FunctionMax) { element = createElement("max"); } if (item is FunctionMin) { element = createElement("min"); } if (item is FunctionSin) { element = createElement("sin"); } if (item is FunctionCos) { element = createElement("cos"); } if (item is FunctionTan) { element = createElement("tan"); } if (item is BracketItem) { element = createElement(""); } if (item is FunctionItem) { FunctionItem function = (FunctionItem)item; foreach (FormulaItem arg in function.Arguments) { Element argElement = Convert(arg); element.Arguments.Add(argElement); } } return(element); }