100 lines
2.3 KiB
C#
100 lines
2.3 KiB
C#
using System;
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namespace CPF.ReoGrid.Formula
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{
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internal struct FormulaValue
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{
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public FormulaValue(FormulaValueType type, object value)
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{
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this.type = type;
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this.value = value;
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}
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public override string ToString()
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{
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return string.Format("Value[{0}: {1}]", this.type, this.value);
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}
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public static implicit operator string(FormulaValue value)
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{
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return Convert.ToString(value.value);
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}
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public static implicit operator FormulaValue(string text)
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{
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return new FormulaValue(FormulaValueType.String, text);
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}
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public static implicit operator double(FormulaValue value)
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{
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return (value.type != FormulaValueType.Number) ? 0.0 : ((double)value.value);
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}
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public static implicit operator FormulaValue(double num)
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{
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return new FormulaValue(FormulaValueType.Number, num);
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}
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public static implicit operator bool(FormulaValue value)
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{
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return value.type == FormulaValueType.Boolean && (bool)value.value;
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}
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public static implicit operator FormulaValue(bool b)
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{
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return new FormulaValue(FormulaValueType.Boolean, b);
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}
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public static implicit operator DateTime(FormulaValue value)
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{
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return (value.type != FormulaValueType.DateTime) ? new DateTime(1900, 1, 1) : ((DateTime)value.value);
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}
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public static implicit operator FormulaValue(DateTime b)
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{
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return new FormulaValue(FormulaValueType.DateTime, b);
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}
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public static implicit operator CellPosition(FormulaValue value)
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{
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return (value.type != FormulaValueType.Cell) ? CellPosition.Empty : ((CellPosition)value.value);
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}
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public static implicit operator FormulaValue(CellPosition pos)
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{
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return new FormulaValue(FormulaValueType.Cell, pos);
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}
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public static implicit operator RangePosition(FormulaValue value)
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{
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return (value.type != FormulaValueType.Range) ? RangePosition.Empty : ((RangePosition)value.value);
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}
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public static implicit operator FormulaValue(RangePosition range)
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{
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return new FormulaValue(FormulaValueType.Range, range);
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}
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public FormulaValueType type;
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public object value;
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public static FormulaValue Nil = new FormulaValue
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{
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type = FormulaValueType.Nil
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};
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public static FormulaValue True = new FormulaValue
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{
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type = FormulaValueType.Boolean,
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value = true
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};
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public static FormulaValue False = new FormulaValue
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{
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type = FormulaValueType.Boolean,
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value = false
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};
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}
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}
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