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QWERTYkez.ExcelProcessor/Editors/CellAlign.cs
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223
QWERTYkez.ExcelProcessor/Editors/CellAlign.cs
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namespace QWERTYkez.ExcelProcessor.Editors;
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/// <summary>
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/// Определяет выравнивание содержимого ячейки: горизонтальное, вертикальное, перенос текста и уменьшение по размеру.
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/// Все свойства опциональны. Если свойство не задано, соответствующий аспект не изменяется.
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/// </summary>
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public readonly struct CellAlign : IEquatable<CellAlign>
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{
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/// <summary>Горизонтальное выравнивание.</summary>
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public CellAlignHorizontal? Horizontal { get; init; }
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/// <summary>Вертикальное выравнивание.</summary>
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public CellAlignVertical? Vertical { get; init; }
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/// <summary>Переносить ли текст по словам (многострочный режим).</summary>
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public bool? WrapText { get; init; }
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/// <summary>Уменьшать размер шрифта, чтобы текст поместился в ячейку.</summary>
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public bool? ShrinkToFit { get; init; }
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/// <summary>Преобразует горизонтальное выравнивание в тип Open XML.</summary>
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public bool TryGetExcelHorizontalAlignment(out HorizontalAlignmentValues value)
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{
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if (Horizontal.HasValue)
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{
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value = Horizontal.Value switch
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{
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CellAlignHorizontal.Left => HorizontalAlignmentValues.Left,
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CellAlignHorizontal.Center => HorizontalAlignmentValues.Center,
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CellAlignHorizontal.Right => HorizontalAlignmentValues.Right,
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CellAlignHorizontal.Fill => HorizontalAlignmentValues.Fill,
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CellAlignHorizontal.Justify => HorizontalAlignmentValues.Justify,
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CellAlignHorizontal.CenterContinuous => HorizontalAlignmentValues.CenterContinuous,
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CellAlignHorizontal.Distributed => HorizontalAlignmentValues.Distributed,
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_ => throw new NotSupportedException($"Unsupported horizontal alignment: {Horizontal.Value}")
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};
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return true;
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}
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value = default;
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return false;
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}
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/// <summary>Преобразует вертикальное выравнивание в тип Open XML.</summary>
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public bool TryGetExcelVerticalAlignment(out VerticalAlignmentValues value)
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{
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if (Vertical.HasValue)
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{
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value = Vertical.Value switch
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{
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CellAlignVertical.Top => VerticalAlignmentValues.Top,
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CellAlignVertical.Center => VerticalAlignmentValues.Center,
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CellAlignVertical.Bottom => VerticalAlignmentValues.Bottom,
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CellAlignVertical.Justify => VerticalAlignmentValues.Justify,
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CellAlignVertical.Distributed => VerticalAlignmentValues.Distributed,
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_ => throw new NotSupportedException($"Unsupported vertical alignment: {Vertical.Value}")
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};
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return true;
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}
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value = default;
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return false;
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}
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/// <summary>Создаёт элемент Alignment для Open XML.</summary>
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public Alignment? ToAlignment()
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{
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if (!Horizontal.HasValue && !Vertical.HasValue && !WrapText.HasValue && !ShrinkToFit.HasValue)
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return null;
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var align = new Alignment();
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if (TryGetExcelHorizontalAlignment(out var hAlign))
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align.Horizontal = hAlign;
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if (TryGetExcelVerticalAlignment(out var vAlign))
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align.Vertical = vAlign;
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if (WrapText.HasValue)
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align.WrapText = WrapText.Value;
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if (ShrinkToFit.HasValue)
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align.ShrinkToFit = ShrinkToFit.Value;
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return align;
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}
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/// <summary>Создаёт CellAlign из элемента Alignment Open XML.</summary>
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public static CellAlign FromAlignment(Alignment? alignment)
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{
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if (alignment == null)
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return default;
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var result = new CellAlign();
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if (alignment.Horizontal?.Value is { } horizontal)
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{
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result = result with { Horizontal = MapHorizontalFromExcel(horizontal) };
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}
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if (alignment.Vertical?.Value is { } vertical)
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{
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result = result with { Vertical = MapVerticalFromExcel(vertical) };
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}
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if (alignment.WrapText?.Value is { } wrapText)
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{
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result = result with { WrapText = wrapText };
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}
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if (alignment.ShrinkToFit?.Value is { } shrinkToFit)
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{
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result = result with { ShrinkToFit = shrinkToFit };
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}
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return result;
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}
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private static CellAlignHorizontal MapHorizontalFromExcel(HorizontalAlignmentValues value)
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{
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if (value == HorizontalAlignmentValues.Left)
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{
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return CellAlignHorizontal.Left;
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}
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else if (value == HorizontalAlignmentValues.Center)
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{
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return CellAlignHorizontal.Center;
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}
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else if (value == HorizontalAlignmentValues.Right)
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{
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return CellAlignHorizontal.Right;
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}
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else if (value == HorizontalAlignmentValues.Fill)
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{
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return CellAlignHorizontal.Fill;
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}
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else if (value == HorizontalAlignmentValues.Justify)
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{
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return CellAlignHorizontal.Justify;
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}
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else if (value == HorizontalAlignmentValues.CenterContinuous)
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{
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return CellAlignHorizontal.CenterContinuous;
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}
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else if (value == HorizontalAlignmentValues.Distributed)
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{
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return CellAlignHorizontal.Distributed;
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}
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else throw new NotSupportedException($"Unsupported horizontal alignment: {value}");
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}
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private static CellAlignVertical MapVerticalFromExcel(VerticalAlignmentValues value)
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{
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if (value == VerticalAlignmentValues.Top)
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{
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return CellAlignVertical.Top;
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}
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else if (value == VerticalAlignmentValues.Center)
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{
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return CellAlignVertical.Center;
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}
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else if (value == VerticalAlignmentValues.Bottom)
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{
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return CellAlignVertical.Bottom;
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}
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else if (value == VerticalAlignmentValues.Justify)
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{
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return CellAlignVertical.Justify;
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}
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else if (value == VerticalAlignmentValues.Distributed)
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{
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return CellAlignVertical.Distributed;
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}
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else throw new NotSupportedException($"Unsupported vertical alignment: {value}");
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}
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public override bool Equals(object? obj) => obj is CellAlign other && Equals(other);
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public bool Equals(CellAlign other) => this == other;
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public static bool operator ==(CellAlign left, CellAlign right) =>
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left.Horizontal == right.Horizontal &&
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left.Vertical == right.Vertical &&
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left.WrapText == right.WrapText &&
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left.ShrinkToFit == right.ShrinkToFit;
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public static bool operator !=(CellAlign left, CellAlign right) => !(left == right);
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public override int GetHashCode()
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{
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unchecked
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{
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int hash = 17;
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hash = hash * 31 + (Horizontal?.GetHashCode() ?? 0);
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hash = hash * 31 + (Vertical?.GetHashCode() ?? 0);
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hash = hash * 31 + (WrapText?.GetHashCode() ?? 0);
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hash = hash * 31 + (ShrinkToFit?.GetHashCode() ?? 0);
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return hash;
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}
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}
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}
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/// <summary>Горизонтальное выравнивание содержимого ячейки.</summary>
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public enum CellAlignHorizontal
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{
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/// <summary>По левому краю.</summary>
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Left,
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/// <summary>По центру.</summary>
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Center,
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/// <summary>По правому краю.</summary>
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Right,
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/// <summary>Заполнение (повтор содержимого для заполнения ширины).</summary>
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Fill,
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/// <summary>По ширине (для многострочного текста).</summary>
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Justify,
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/// <summary>Центрирование по выделенным ячейкам (визуально, без объединения).</summary>
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CenterContinuous,
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/// <summary>Распределённый (выравнивание по ширине с пробелами).</summary>
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Distributed,
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}
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/// <summary>Вертикальное выравнивание содержимого ячейки.</summary>
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public enum CellAlignVertical
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{
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/// <summary>По верхнему краю.</summary>
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Top,
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/// <summary>По центру.</summary>
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Center,
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/// <summary>По нижнему краю (значение по умолчанию).</summary>
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Bottom,
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/// <summary>По высоте (для многострочного текста).</summary>
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Justify,
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/// <summary>Распределённый по вертикали.</summary>
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Distributed,
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}
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