void StartRowSplitting()
{
if (Workbook.Protect)
{
return;
}
HitTestInformation savedHitTestInformation = GetHitInfo();
SheetLayout layout = GetSheetLayout();
if (!IsTouching)
{
IsRowSplitting = true;
}
else
{
IsTouchRowSplitting = true;
}
IsWorking = true;
if (_rowSplittingTracker == null)
{
// 动态分割线，创建后始终在可视树，通过Opacity控制是否显示
_rowSplittingTracker = new Line();
_rowSplittingTracker.Stroke = BrushRes.BlackBrush;
_trackersPanel.Children.Add(_rowSplittingTracker);
}
int rowViewportIndex = savedHitTestInformation.RowViewportIndex;
_rowSplittingTracker.Opacity = 0.5;
switch (savedHitTestInformation.HitTestType)
{
case HitTestType.RowSplitBar:
case HitTestType.ColumnSplitBar:
_rowSplittingTracker.StrokeThickness = _defaultSplitBarSize;
_rowSplittingTracker.Y1 = layout.GetVerticalSplitBarY(rowViewportIndex) + (_defaultSplitBarSize / 2.0);
_rowSplittingTracker.X1 = layout.X;
_rowSplittingTracker.Y2 = _rowSplittingTracker.Y1;
_rowSplittingTracker.X2 = layout.X + _availableSize.Width;
return;
case HitTestType.RowSplitBox:
_rowSplittingTracker.StrokeThickness = _defaultSplitBarSize;
if (RowSplitBoxAlignment == SplitBoxAlignment.Leading)
{
_rowSplittingTracker.Y1 = layout.GetViewportY(rowViewportIndex) + (_defaultSplitBarSize / 2.0);
}
else
{
_rowSplittingTracker.Y1 = (layout.GetViewportY(rowViewportIndex) + layout.GetViewportHeight(rowViewportIndex)) - (_defaultSplitBarSize / 2.0);
}
_rowSplittingTracker.X1 = layout.X;
_rowSplittingTracker.Y2 = _rowSplittingTracker.Y1;
_rowSplittingTracker.X2 = layout.X + _availableSize.Width;
return;
}
}
void EndRowSplitting()
{
double num2;
HitTestInformation savedHitTestInformation = GetHitInfo();
SheetLayout layout = GetSheetLayout();
int rowViewportIndex = savedHitTestInformation.RowViewportIndex;
IsWorking = false;
IsRowSplitting = false;
IsTouchRowSplitting = false;
switch (savedHitTestInformation.HitTestType)
{
case HitTestType.RowSplitBar:
case HitTestType.ColumnSplitBar:
if (MousePosition.Y <= layout.GetVerticalSplitBarY(rowViewportIndex))
{
num2 = layout.GetVerticalSplitBarY(rowViewportIndex) - MousePosition.Y;
}
else
{
num2 = Math.Max(0.0, ((MousePosition.Y - layout.GetVerticalSplitBarY(rowViewportIndex)) - layout.GetVerticalSplitBarHeight(rowViewportIndex)));
}
if (num2 != 0.0)
{
double deltaViewportHeight = (_rowSplittingTracker.Y1 - layout.GetVerticalSplitBarY(rowViewportIndex)) - (layout.GetVerticalSplitBarHeight(rowViewportIndex) / 2.0);
int viewportIndex = savedHitTestInformation.RowViewportIndex;
if (!RaiseRowViewportHeightChanging(viewportIndex, deltaViewportHeight))
{
AdjustRowViewport(rowViewportIndex, deltaViewportHeight);
RaiseRowViewportHeightChanged(viewportIndex, deltaViewportHeight);
}
}
break;
case HitTestType.RowSplitBox:
if (RowSplitBoxAlignment == SplitBoxAlignment.Leading)
{
num2 = Math.Max(0.0, ((MousePosition.Y - layout.GetViewportY(rowViewportIndex)) - _defaultSplitBarSize));
}
else
{
num2 = Math.Max(0.0, (((layout.GetViewportY(rowViewportIndex) + layout.GetViewportHeight(rowViewportIndex)) - MousePosition.Y) - _defaultSplitBarSize));
}
if (num2 > 0.0)
{
double num3 = (_rowSplittingTracker.Y1 - layout.GetViewportY(rowViewportIndex)) - (_defaultSplitBarSize / 2.0);
int num4 = (RowSplitBoxAlignment == SplitBoxAlignment.Leading) ? 0 : (GetViewportInfo().RowViewportCount - 1);
if (!RaiseRowViewportHeightChanging(num4, num3))
{
AddRowViewport(rowViewportIndex, num3);
RaiseRowViewportHeightChanged(num4, num3);
ShowCell(GetActiveRowViewportIndex(), GetActiveColumnViewportIndex(), ActiveSheet.ActiveRowIndex, ActiveSheet.ActiveColumnIndex, VerticalPosition.Nearest, HorizontalPosition.Nearest);
}
}
break;
default:
break;
}
_rowSplittingTracker.Opacity = 0.0;
}
