protected override Size ArrangeOverride(Size finalSize)
{
IDefinitionBase[] currentRowDefinitions = RowDefinitions.Count == 0 ? defaultRowDefinitions : RowDefinitions.ToArray();
IDefinitionBase[] currentColumnDefinitions = ColumnDefinitions.Count == 0 ? defaultColumnDefinitions : ColumnDefinitions.ToArray();
if (currentRowDefinitions.Length == 1 && currentColumnDefinitions.Length == 1)
{
// optimization
return(ArrangeSingleCell(finalSize, currentColumnDefinitions[0], currentRowDefinitions[0]));
}
double[] rowsLength = currentRowDefinitions.Select(definitionBase => definitionBase.Length.IsAbsolute ? definitionBase.Length.Value : 0).ToArray();
double[] columnsLength = currentColumnDefinitions.Select(definitionBase => definitionBase.Length.IsAbsolute ? definitionBase.Length.Value : 0).ToArray();
int row;
int column;
int rowSpan;
int columnSpan;
foreach (FrameworkElement child in Children)
{
GetChildPosition(child, currentRowDefinitions.Length, currentColumnDefinitions.Length, out row, out column, out rowSpan, out columnSpan);
if (rowSpan == 1 && currentRowDefinitions[row].Length.IsAuto)
{
rowsLength[row] = Math.Max(rowsLength[row], child.DesiredSize.Height);
}
if (columnSpan == 1 && currentColumnDefinitions[column].Length.IsAuto)
{
columnsLength[column] = Math.Max(columnsLength[column], child.DesiredSize.Width);
}
}
double rowStarLength = GetStarLength(currentRowDefinitions, finalSize.Height - rowsLength.Sum());
double columnStarLength = GetStarLength(currentColumnDefinitions, finalSize.Width - columnsLength.Sum());
SetStarLengths(currentRowDefinitions, rowStarLength, ref rowsLength);
SetStarLengths(currentColumnDefinitions, columnStarLength, ref columnsLength);
SetBoundedValues(currentRowDefinitions, ref rowsLength);
SetBoundedValues(currentColumnDefinitions, ref columnsLength);
SetActualLength(currentRowDefinitions, rowsLength);
SetActualLength(currentColumnDefinitions, columnsLength);
foreach (FrameworkElement child in Children)
{
GetChildPosition(child, currentRowDefinitions.Length, currentColumnDefinitions.Length, out row, out column, out rowSpan, out columnSpan);
child.Arrange(new Rect(
columnsLength.Take(column).Sum(),
rowsLength.Take(row).Sum(),
columnsLength.Skip(column).Take(columnSpan).Sum(),
rowsLength.Skip(row).Take(rowSpan).Sum()));
}
return(finalSize);
}
protected override Size MeasureOverride(Size availableSize)
{
IDefinitionBase[] currentRowDefinitions = RowDefinitions.Count == 0 ? defaultRowDefinitions : RowDefinitions.ToArray();
IDefinitionBase[] currentColumnDefinitions = ColumnDefinitions.Count == 0 ? defaultColumnDefinitions : ColumnDefinitions.ToArray();
if (currentRowDefinitions.Length == 1 && currentColumnDefinitions.Length == 1)
{
// optimization
return(MeasureSingleCell(availableSize, currentColumnDefinitions[0].Length, currentRowDefinitions[0].Length));
}
double[] rowsLength = currentRowDefinitions.Select(definitionBase => definitionBase.Length.IsAbsolute ? definitionBase.Length.Value : 0).ToArray();
double[] columnsLength = currentColumnDefinitions.Select(definitionBase => definitionBase.Length.IsAbsolute ? definitionBase.Length.Value : 0).ToArray();
int row;
int column;
int rowSpan;
int columnSpan;
foreach (FrameworkElement child in Children)
{
GetChildPosition(child, currentRowDefinitions.Length, currentColumnDefinitions.Length, out row, out column, out rowSpan, out columnSpan);
child.Measure(new Size(
GetMeasureLength(currentColumnDefinitions, availableSize.Width, column, columnSpan),
GetMeasureLength(currentRowDefinitions, availableSize.Height, row, rowSpan)));
if (rowSpan == 1 && (currentRowDefinitions[row].Length.IsAuto || currentRowDefinitions[row].Length.IsStar))
{
rowsLength[row] = Math.Max(rowsLength[row], child.DesiredSize.Height);
}
if (columnSpan == 1 && (currentColumnDefinitions[column].Length.IsAuto || currentColumnDefinitions[column].Length.IsStar))
{
columnsLength[column] = Math.Max(columnsLength[column], child.DesiredSize.Width);
}
}
SetBoundedValues(currentRowDefinitions, ref rowsLength);
SetBoundedValues(currentColumnDefinitions, ref columnsLength);
return(new Size(columnsLength.Sum(), rowsLength.Sum()));
}
public void GridShaping()
{
//罫線の太さはここで指定。
var thickness = new GridLength(1);
// 罫線用の行・列を追加
var columns = ColumnDefinitions.ToArray();
ColumnDefinitions.Clear();
if (columns.Any())
{
foreach (var c in columns)
{
ColumnDefinitions.Add(new ColumnDefinition {
Width = thickness
});
ColumnDefinitions.Add(c);
}
}
else
{
ColumnDefinitions.Add(new ColumnDefinition {
Width = thickness
});
ColumnDefinitions.Add(new ColumnDefinition());
}
ColumnDefinitions.Add(new ColumnDefinition {
Width = new GridLength(0.5)
});
var rows = RowDefinitions.ToArray();
RowDefinitions.Clear();
if (rows.Any())
{
foreach (var r in rows)
{
RowDefinitions.Add(new RowDefinition {
Height = thickness
});
RowDefinitions.Add(r);
}
}
else
{
RowDefinitions.Add(new RowDefinition {
Height = thickness
});
RowDefinitions.Add(new RowDefinition());
}
RowDefinitions.Add(new RowDefinition {
Height = thickness
});
//行・列を追加した分、Column,Row,ColumnSpan,RowSpanがずれるのでその補正再設定
foreach (UIElement c in Children)
{
SetColumn(c, GetColumn(c) * 2 + 1);
SetColumnSpan(c, GetColumnSpan(c) * 2 - 1);
SetRow(c, GetRow(c) * 2 + 1);
SetRowSpan(c, GetRowSpan(c) * 2 - 1);
}
//罫線用に追加した行・列にRectangleを配置
for (var i = 0; i < ColumnDefinitions.Count; i += 2)
{
var rectangle = new Rectangle()
{
Fill = Brushes.Black
};
Children.Add(rectangle);
SetColumn(rectangle, i);
SetRowSpan(rectangle, RowDefinitions.Count);
SetZIndex(rectangle, int.MinValue);
}
for (var i = 0; i < RowDefinitions.Count; i += 2)
{
var rectangle = new Rectangle()
{
Fill = Brushes.Black
};
Children.Add(rectangle);
SetRow(rectangle, i);
SetColumnSpan(rectangle, ColumnDefinitions.Count);
SetZIndex(rectangle, int.MinValue);
}
}
