/// <summary>垂直方向時のExpanderの内部処理拡張メソッド</summary>
/// <param name="expander"></param>
/// <param name="mode"></param>
private static void AttachMode_Vertical(this Expander expander, GridSnapMode mode)
{
if (expander == null)
{
return;
}
// イベント解除
expander.Expanded -= Expanded_Vertical;
expander.Collapsed -= Collapsed_Vertical;
Grid targetGrid = expander.FindAncestor <Grid>();
if (targetGrid == null)
{
return;
}
// 対象となるGridの情報を取得していく
int gridRow = Grid.GetRow(expander);
RowDefinition targetRowDefinition = targetGrid.RowDefinitions[gridRow];
// プロパティ内に情報をセット
SetTargetRowDefinition(expander, targetRowDefinition);
SetLastGridLength(expander, targetRowDefinition.Height);
// GridSplitterを取得
GridSplitter gridSplitter = null;
if (mode == GridSnapMode.Auto)
{
gridSplitter = targetGrid.FindDescendant <GridSplitter>();
}
else
{
gridSplitter = GetTargetGridSplitter(expander);
}
if (mode == GridSnapMode.Explicit && gridSplitter == null)
{
// GridSplitterの移動をそのままにするのにGridSplitterがnullはあり得ない
throw new ArgumentException("Mode [explicit] requires [TargetGridSplitter]");
}
// Binding実行
gridSplitter.SetBinding(UIElement.VisibilityProperty, new Binding(nameof(Expander.IsExpanded))
{
Mode = BindingMode.OneWay,
Converter = BoolToVisibleConverter,
Source = expander
});
expander.Expanded += Expanded_Vertical;
expander.Collapsed += Collapsed_Vertical;
}
private static void AddGridSplitterBindings(GridSplitter gridSplitter, DisplayContainer previousContainer, DisplayContainer nextContainer)
{
MultiBinding multiBinding = new MultiBinding()
{
Converter = new BooleanAndConverter()
};
// A splitter is disabled if either the container above or below it has its content collapsed
var booleanToNotBooleanConverter = new BooleanToNotBooleanConverter();
multiBinding.Bindings.Add(new Binding(nameof(previousContainer.IsContentCollapsed))
{
Source = previousContainer, Converter = booleanToNotBooleanConverter
});
multiBinding.Bindings.Add(new Binding(nameof(nextContainer.IsContentCollapsed))
{
Source = nextContainer, Converter = booleanToNotBooleanConverter
});
gridSplitter.SetBinding(GridSplitter.IsEnabledProperty, multiBinding);
}
private static void AttachMode_Horizontal(this Expander expander, GridSnapMode mode)
{
if (expander == null)
{
return;
}
expander.Expanded -= Expanded_Horizontal;
expander.Collapsed -= Collapsed_Horizontal;
Grid targetGrid = expander.FindAncestor <Grid>();
if (targetGrid == null)
{
return;
}
if (mode == GridSnapMode.None)
{
return;
}
int gridColumn = Grid.GetColumn(expander);
ColumnDefinition columnDefinition = targetGrid.ColumnDefinitions[gridColumn];
SetTargetColumnDefinition(expander, columnDefinition);
// 初回にExpanderを開く際、開かれたGridのActualWidthをとれずに検索テキストボックスの幅が微小になってしまう
// そのため、exeを立ち上げて最初にExpanderを開く際のみMainWindowの比で強引に値を入れてやる
// Expanderを開く前はExpander側の幅を調節できないため、数値がおかしくなる心配はないと想定される
if (_isFirst)
{
SetFirstGridLength(expander);
}
else
{
SetLastGridLength(expander, columnDefinition.Width);
}
GridSplitter gridSplitter = null;
if (mode == GridSnapMode.Auto)
{
gridSplitter = targetGrid.FindDescendant <GridSplitter>();
}
else
{
gridSplitter = GetTargetGridSplitter(expander);
}
if (mode == GridSnapMode.Explicit && gridSplitter == null)
{
throw new ArgumentException("[Explicit] requires [TargetGridSplitter]");
}
gridSplitter.SetBinding(UIElement.VisibilityProperty, new Binding(nameof(Expander.IsExpanded))
{
Mode = BindingMode.OneWay,
Converter = BoolToVisibleConverter,
Source = expander,
});
expander.Expanded += Expanded_Horizontal;
expander.Collapsed += Collapsed_Horizontal;
}
//根据行数列数绘制表格
void DrawGrid()
{
ColumnDefinition columnDefinition;
RowDefinition rowDefinition;
GridSplitter gridSplitter;
Binding binding;
if (RowCount == 0 || ColumnCount == 0)
{
return;
}
base.ColumnDefinitions.Clear();
base.RowDefinitions.Clear();
base.Children.Clear();
for (int i = 0; i < RowCount; i++)
{
rowDefinition = new RowDefinition()
{
AllowDrop = true
};
base.RowDefinitions.Add(rowDefinition);
if (i < RowCount - 1)
{
base.RowDefinitions.Add(new RowDefinition()
{
Height = new GridLength(0, GridUnitType.Auto)
});
}
}
for (int i = 0; i < ColumnCount; i++)
{
columnDefinition = new ColumnDefinition()
{
AllowDrop = true
};
base.ColumnDefinitions.Add(columnDefinition);
if (i < ColumnCount - 1)
{
base.ColumnDefinitions.Add(new ColumnDefinition()
{
Width = new GridLength(0, GridUnitType.Auto)
});
}
}
for (int row = 0; row < base.RowDefinitions.Count; row += 2)
{
for (int column = 0; column < base.ColumnDefinitions.Count; column += 2)
{
base.Children.Add(GetTextBox(column, row));
}
}
for (int column = 1; column < base.ColumnDefinitions.Count; column += 2)
{
gridSplitter = new GridSplitter()
{
AllowDrop = false, Background = Brushes.Black, ShowsPreview = true, HorizontalAlignment = System.Windows.HorizontalAlignment.Center
};
binding = new Binding()
{
Source = this, Path = new PropertyPath("BorderWidth"), Mode = BindingMode.TwoWay, UpdateSourceTrigger = UpdateSourceTrigger.PropertyChanged
};
gridSplitter.SetBinding(GridSplitter.WidthProperty, binding);
Grid.SetColumn(gridSplitter, column);
Grid.SetRowSpan(gridSplitter, base.RowDefinitions.Count);
base.Children.Add(gridSplitter);
}
for (int row = 1; row < base.RowDefinitions.Count; row += 2)
{
gridSplitter = new GridSplitter()
{
AllowDrop = false, Background = Brushes.Black, ResizeDirection = GridResizeDirection.Rows, HorizontalAlignment = System.Windows.HorizontalAlignment.Stretch
};
binding = new Binding()
{
Source = this, Path = new PropertyPath("BorderWidth"), Mode = BindingMode.TwoWay, UpdateSourceTrigger = UpdateSourceTrigger.PropertyChanged
};
gridSplitter.SetBinding(GridSplitter.HeightProperty, binding);
Grid.SetRow(gridSplitter, row);
Grid.SetColumnSpan(gridSplitter, base.ColumnDefinitions.Count);
base.Children.Add(gridSplitter);
}
}