public Size GetViewportSize(Size availableSize)
{
SheetLayout sheetLayout = Excel.GetSheetLayout();
if (Area == SheetArea.ColumnHeader)
{
double viewportWidth = sheetLayout.GetViewportWidth(ColumnViewportIndex);
double headerHeight = sheetLayout.HeaderHeight;
viewportWidth = Math.Min(viewportWidth, availableSize.Width);
return(new Size(viewportWidth, Math.Min(headerHeight, availableSize.Height)));
}
double headerWidth = sheetLayout.HeaderWidth;
double viewportHeight = sheetLayout.GetViewportHeight(RowViewportIndex);
headerWidth = Math.Min(headerWidth, availableSize.Width);
return(new Size(headerWidth, Math.Min(viewportHeight, availableSize.Height)));
}
void ContinueColumnSplitting()
{
HitTestInformation savedHitTestInformation = GetHitInfo();
SheetLayout layout = GetSheetLayout();
int columnViewportIndex = savedHitTestInformation.ColumnViewportIndex;
switch (savedHitTestInformation.HitTestType)
{
case HitTestType.RowSplitBar:
case HitTestType.ColumnSplitBar:
if (MousePosition.X <= _columnSplittingTracker.X1)
{
_columnSplittingTracker.X1 = Math.Max(MousePosition.X, layout.GetViewportX(columnViewportIndex) + (layout.GetHorizontalSplitBarWidth(columnViewportIndex) / 2.0));
break;
}
_columnSplittingTracker.X1 = Math.Min(MousePosition.X, (layout.GetViewportX(columnViewportIndex + 1) + layout.GetViewportWidth(columnViewportIndex + 1)) - (layout.GetHorizontalSplitBarWidth(columnViewportIndex) / 2.0));
break;
case HitTestType.ColumnSplitBox:
if (MousePosition.X <= _columnSplittingTracker.X1)
{
_columnSplittingTracker.X1 = Math.Max(MousePosition.X, layout.GetViewportX(columnViewportIndex) + (_defaultSplitBarSize / 2.0));
break;
}
_columnSplittingTracker.X1 = Math.Min(MousePosition.X, (layout.GetViewportX(columnViewportIndex) + layout.GetViewportWidth(columnViewportIndex)) - (_defaultSplitBarSize / 2.0));
break;
}
_columnSplittingTracker.X2 = _columnSplittingTracker.X1;
}
void StartColumnSplitting()
{
if (Workbook.Protect)
{
return;
}
HitTestInformation savedHitTestInformation = GetHitInfo();
SheetLayout layout = GetSheetLayout();
if (!IsTouching)
{
IsColumnSplitting = true;
}
else
{
IsTouchColumnSplitting = true;
}
IsWorking = true;
if (_columnSplittingTracker == null)
{
// 动态分割线，创建后始终在可视树，通过Opacity控制是否显示
_columnSplittingTracker = new Line();
_columnSplittingTracker.Stroke = BrushRes.BlackBrush;
_trackersPanel.Children.Add(_columnSplittingTracker);
}
int columnViewportIndex = savedHitTestInformation.ColumnViewportIndex;
_columnSplittingTracker.Opacity = 0.5;
switch (savedHitTestInformation.HitTestType)
{
case HitTestType.RowSplitBar:
case HitTestType.ColumnSplitBar:
_columnSplittingTracker.StrokeThickness = _defaultSplitBarSize;
_columnSplittingTracker.X1 = layout.GetHorizontalSplitBarX(columnViewportIndex) + (_defaultSplitBarSize / 2.0);
_columnSplittingTracker.Y1 = layout.Y;
_columnSplittingTracker.X2 = _columnSplittingTracker.X1;
_columnSplittingTracker.Y2 = layout.HeaderY + _availableSize.Height;
return;
case HitTestType.RowSplitBox:
return;
case HitTestType.ColumnSplitBox:
_columnSplittingTracker.StrokeThickness = _defaultSplitBarSize;
if (ColumnSplitBoxAlignment == SplitBoxAlignment.Leading)
{
_columnSplittingTracker.X1 = layout.GetViewportX(columnViewportIndex) + (_defaultSplitBarSize / 2.0);
}
else
{
_columnSplittingTracker.X1 = (layout.GetViewportX(columnViewportIndex) + layout.GetViewportWidth(columnViewportIndex)) - (_defaultSplitBarSize / 2.0);
}
_columnSplittingTracker.Y1 = layout.Y;
_columnSplittingTracker.X2 = _columnSplittingTracker.X1;
_columnSplittingTracker.Y2 = layout.HeaderY + _availableSize.Height;
return;
}
}
void EndColumnSplitting()
{
double num2;
HitTestInformation savedHitTestInformation = GetHitInfo();
SheetLayout layout = GetSheetLayout();
int columnViewportIndex = savedHitTestInformation.ColumnViewportIndex;
IsWorking = false;
IsTouchColumnSplitting = false;
IsColumnSplitting = false;
switch (savedHitTestInformation.HitTestType)
{
case HitTestType.RowSplitBar:
case HitTestType.ColumnSplitBar:
if (MousePosition.X <= layout.GetHorizontalSplitBarX(savedHitTestInformation.ColumnViewportIndex))
{
num2 = layout.GetHorizontalSplitBarX(savedHitTestInformation.ColumnViewportIndex) - MousePosition.X;
}
else
{
num2 = Math.Max((double)0.0, (double)((MousePosition.X - layout.GetHorizontalSplitBarX(savedHitTestInformation.ColumnViewportIndex)) - layout.GetHorizontalSplitBarWidth(savedHitTestInformation.ColumnViewportIndex)));
}
if (num2 != 0.0)
{
double deltaViewportWidth = (_columnSplittingTracker.X1 - layout.GetHorizontalSplitBarX(savedHitTestInformation.ColumnViewportIndex)) - (layout.GetHorizontalSplitBarWidth(savedHitTestInformation.ColumnViewportIndex) / 2.0);
int viewportIndex = savedHitTestInformation.ColumnViewportIndex;
if (!RaiseColumnViewportWidthChanging(viewportIndex, deltaViewportWidth))
{
AdjustColumnViewport(columnViewportIndex, deltaViewportWidth);
RaiseColumnViewportWidthChanged(viewportIndex, deltaViewportWidth);
}
}
break;
case HitTestType.ColumnSplitBox:
if (ColumnSplitBoxAlignment == SplitBoxAlignment.Leading)
{
num2 = Math.Max(0.0, MousePosition.X - layout.GetViewportX(savedHitTestInformation.ColumnViewportIndex) - _defaultSplitBarSize);
}
else
{
num2 = Math.Max(0.0, layout.GetViewportX(savedHitTestInformation.ColumnViewportIndex) + layout.GetViewportWidth(savedHitTestInformation.ColumnViewportIndex) - MousePosition.X - _defaultSplitBarSize);
}
if (num2 > 0.0)
{
double num3 = (_columnSplittingTracker.X1 - layout.GetViewportX(columnViewportIndex)) - (_defaultSplitBarSize / 2.0);
int num4 = (ColumnSplitBoxAlignment == SplitBoxAlignment.Leading) ? 0 : (GetViewportInfo().ColumnViewportCount - 1);
if (!RaiseColumnViewportWidthChanging(num4, num3))
{
AddColumnViewport(columnViewportIndex, num3);
RaiseColumnViewportWidthChanged(num4, num3);
ShowCell(GetActiveRowViewportIndex(), GetActiveColumnViewportIndex(), ActiveSheet.ActiveRowIndex, ActiveSheet.ActiveColumnIndex, VerticalPosition.Nearest, HorizontalPosition.Nearest);
}
}
break;
default:
break;
}
_columnSplittingTracker.Opacity = 0.0;
}