CellRange ClipCellRange(CellRange source)
{
RowLayoutModel rowLayoutModel = OwnPanel.GetRowLayoutModel();
ColumnLayoutModel columnLayoutModel = GetColumnLayoutModel();
ICellsSupport dataContext = OwnPanel.GetDataContext();
int row = Math.Max(rowLayoutModel[0].Row, source.Row);
int num2 = Math.Min(rowLayoutModel[rowLayoutModel.Count - 1].Row, (source.Row + source.RowCount) - 1);
int column = Math.Max(columnLayoutModel[0].Column, source.Column);
int num4 = Math.Min(columnLayoutModel[columnLayoutModel.Count - 1].Column, (source.Column + source.ColumnCount) - 1);
for (int i = row; i <= num2; i++)
{
if (dataContext.Rows[i].ActualHeight > 0.0)
{
row = i;
break;
}
}
for (int j = column; j <= num4; j++)
{
if (dataContext.Columns[j].ActualWidth > 0.0)
{
column = j;
break;
}
}
return(new CellRange(row, column, (num2 - row) + 1, (num4 - column) + 1));
}
internal Rect GetCellBounds(int p_row, int p_column, bool p_ignoreMerged)
{
if (Excel == null)
{
return(new Rect());
}
// 包含合并情况
CellLayoutModel model = null;
if (!p_ignoreMerged)
{
model = Excel.GetCellLayoutModel(RowViewportIndex, ColumnViewportIndex, SheetArea.Cells);
}
CellLayout layout = (model == null) ? null : model.FindCell(p_row, p_column);
if (layout != null)
{
return(new Rect(layout.X, layout.Y, layout.Width, layout.Height));
}
RowLayoutModel rowLayoutModel = Excel.GetRowLayoutModel(RowViewportIndex, SheetArea.Cells);
ColumnLayoutModel columnLayoutModel = Excel.GetColumnLayoutModel(ColumnViewportIndex, SheetArea.Cells);
if (rowLayoutModel == null || columnLayoutModel == null)
{
return(new Rect());
}
RowLayout layout2 = rowLayoutModel.Find(p_row);
ColumnLayout layout3 = columnLayoutModel.Find(p_column);
double x = -1.0;
double y = -1.0;
double width = 0.0;
double height = 0.0;
if (layout2 != null)
{
y = layout2.Y;
height = layout2.Height;
}
if (layout3 != null)
{
x = layout3.X;
width = layout3.Width;
}
return(new Rect(x, y, width, height));
}
protected override Size ArrangeOverride(Size finalSize)
{
RowLayoutModel rowLayoutModel = _owner.GetRowLayoutModel();
double y = 0.0;
double rowWidth = 0.0;
foreach (RowLayout layout in rowLayoutModel)
{
if (layout.Height <= 0.0)
{
continue;
}
if (_rows.TryGetValue(layout.Row, out var rowItem))
{
// 一定按行的最大高度布局，否则当单元格占多行时在uno上只绘一行！
rowItem.Arrange(new Rect(0.0, y, finalSize.Width, rowItem.DesiredSize.Height));
if (rowWidth == 0.0)
{
rowWidth = rowItem.RowWidth;
}
}
y += layout.Height;
}
if (_recycledRows.Count > 0)
{
foreach (var rowItem in _recycledRows)
{
rowItem.Arrange(_rcEmpty);
}
}
rowWidth = Math.Min(_owner.GetViewportSize().Width, rowWidth);
Size size = new Size(rowWidth, y);
Clip = new RectangleGeometry {
Rect = new Rect(new Point(), size)
};
return(size);
}
protected override Size MeasureOverride(Size availableSize)
{
if (_owner.Excel.CanCellOverflow)
{
int viewportLeftColumn = _owner.Excel.GetViewportLeftColumn(_owner.ColumnViewportIndex);
_owner.CellOverflowLayoutBuildEngine.ViewportLeftColumn = viewportLeftColumn;
int viewportRightColumn = _owner.Excel.GetViewportRightColumn(_owner.ColumnViewportIndex);
_owner.CellOverflowLayoutBuildEngine.ViewportRightColumn = viewportRightColumn;
}
// 频繁增删Children子元素会出现卡顿现象！
// Children = _rows + _recycledRows
RowLayoutModel rowLayoutModel = _owner.GetRowLayoutModel();
int less = rowLayoutModel.Count - Children.Count;
if (less > 0)
{
for (int i = 0; i < less; i++)
{
RowItem rowItem = new RowItem(_owner);
Children.Add(rowItem);
_recycledRows.Add(rowItem);
}
}
// 先回收不可见行
List <RowItem> rows = _rows.Values.ToList();
foreach (var rowItem in rows)
{
RowLayout layout = rowLayoutModel.FindRow(rowItem.Row);
if (layout == null || layout.Height <= 0.0)
{
_recycledRows.Add(rowItem);
_rows.Remove(rowItem.Row);
rowItem.Row = -1;
rowItem.CleanUpBeforeDiscard();
}
}
double y = _owner.Location.Y;
double left = 0.0;
foreach (RowLayout layout in rowLayoutModel)
{
if (layout.Height <= 0.0)
{
continue;
}
bool updateAllCell = false;
RowItem rowItem = null;
if (!_rows.TryGetValue(layout.Row, out rowItem))
{
// 重新利用回收的行
rowItem = _recycledRows[0];
_recycledRows.RemoveAt(0);
rowItem.Row = layout.Row;
_rows.Add(layout.Row, rowItem);
updateAllCell = true;
}
rowItem.Location = new Point(_owner.Location.X, y);
rowItem.UpdateChildren(updateAllCell);
int z = rowItem.ContainsSpanCell ? _spanRowZIndexBase + rowItem.Row : _normalZIndexBase + rowItem.Row;
z = z % 0x7ffe;
Canvas.SetZIndex(rowItem, z);
// 测量尺寸足够大，否则当单元格占多行时在uno上只绘一行！
rowItem.Measure(availableSize);
y += layout.Height;
left = Math.Max(left, rowItem.DesiredSize.Width);
}
// 测量回收的行
if (_recycledRows.Count > 0)
{
foreach (var rowItem in _recycledRows)
{
rowItem.Measure(_szEmpty);
}
}
return(new Size(left + _owner.Location.X, y));
}
internal Rect GetRangeBounds(CellRange range, out bool isLeftVisible, out bool isRightVisible, out bool isTopVisible, out bool isBottomVisible)
{
isLeftVisible = true;
isRightVisible = true;
isTopVisible = true;
isBottomVisible = true;
RowLayoutModel rowLayoutModel = GetRowLayoutModel();
ColumnLayoutModel viewportColumnLayoutModel = Excel.GetViewportColumnLayoutModel(ColumnViewportIndex);
int row = (rowLayoutModel.Count > 0) ? rowLayoutModel[0].Row : -1;
int num2 = (rowLayoutModel.Count > 0) ? rowLayoutModel[rowLayoutModel.Count - 1].Row : -1;
int column = (viewportColumnLayoutModel.Count > 0) ? viewportColumnLayoutModel[0].Column : -1;
int num4 = (viewportColumnLayoutModel.Count > 0) ? viewportColumnLayoutModel[viewportColumnLayoutModel.Count - 1].Column : -1;
if (!range.Intersects(row, column, (num2 - row) + 1, (num4 - column) + 1))
{
return(Rect.Empty);
}
int index = Math.Max(range.Row, row);
int num6 = Math.Max(range.Column, column);
int num7 = Math.Min((range.Row + range.RowCount) - 1, num2);
int num8 = Math.Min((range.Column + range.ColumnCount) - 1, num4);
RowLayout layout = rowLayoutModel.Find(index);
RowLayout layout2 = rowLayoutModel.Find(num7);
ColumnLayout layout3 = viewportColumnLayoutModel.Find(num6);
ColumnLayout layout4 = viewportColumnLayoutModel.Find(num8);
double x = -1.0;
double y = -1.0;
double height = 0.0;
double width = 0.0;
if ((layout != null) && (layout2 != null))
{
y = layout.Y;
height = (layout2.Y + layout2.Height) - layout.Y;
}
else if (rowLayoutModel.Count > 0)
{
y = rowLayoutModel[0].Y;
height = (rowLayoutModel[rowLayoutModel.Count - 1].Y + rowLayoutModel[rowLayoutModel.Count - 1].Height) - y;
}
if ((layout3 != null) && (layout4 != null))
{
x = layout3.X;
width = (layout4.X + layout4.Width) - layout3.X;
}
else if (viewportColumnLayoutModel.Count > 0)
{
x = viewportColumnLayoutModel[0].X;
width = (viewportColumnLayoutModel[viewportColumnLayoutModel.Count - 1].X + viewportColumnLayoutModel[viewportColumnLayoutModel.Count - 1].Width) - x;
}
if (range.Column < column)
{
isLeftVisible = false;
}
if (range.Row < row)
{
isTopVisible = false;
}
if ((num4 != -1) && (((range.Column + range.ColumnCount) - 1) > num4))
{
isRightVisible = false;
}
if ((num2 != -1) && (((range.Row + range.RowCount) - 1) > num2))
{
isBottomVisible = false;
}
return(new Rect(PointToClient(new Point(x, y)), new Size(width, height)));
}
internal Rect GetRangeBounds(CellRange range, SheetArea area)
{
SheetSpanModel spanModel = null;
if (Excel.ActiveSheet != null)
{
switch (area)
{
case SheetArea.Cells:
spanModel = Excel.ActiveSheet.SpanModel;
break;
case (SheetArea.CornerHeader | SheetArea.RowHeader):
spanModel = Excel.ActiveSheet.RowHeaderSpanModel;
break;
case SheetArea.ColumnHeader:
spanModel = Excel.ActiveSheet.ColumnHeaderSpanModel;
break;
}
}
if (spanModel != null)
{
CellRange range2 = spanModel.Find(range.Row, range.Column);
if (((range2 != null) && (range2.RowCount >= range.RowCount)) && (range2.ColumnCount >= range.ColumnCount))
{
range = range2;
}
}
RowLayoutModel rowLayoutModel = Excel.GetRowLayoutModel(RowViewportIndex, area);
ColumnLayoutModel columnLayoutModel = Excel.GetColumnLayoutModel(ColumnViewportIndex, area);
int row = (rowLayoutModel.Count > 0) ? rowLayoutModel[0].Row : -1;
int num2 = (rowLayoutModel.Count > 0) ? rowLayoutModel[rowLayoutModel.Count - 1].Row : -1;
int column = (columnLayoutModel.Count > 0) ? columnLayoutModel[0].Column : -1;
int num4 = (columnLayoutModel.Count > 0) ? columnLayoutModel[columnLayoutModel.Count - 1].Column : -1;
if (!range.Intersects(row, column, (num2 - row) + 1, (num4 - column) + 1))
{
return(Rect.Empty);
}
int index = Math.Max(range.Row, row);
int num6 = Math.Max(range.Column, column);
int num7 = Math.Min((range.Row + range.RowCount) - 1, num2);
int num8 = Math.Min((range.Column + range.ColumnCount) - 1, num4);
RowLayout layout = rowLayoutModel.Find(index);
RowLayout layout2 = rowLayoutModel.Find(num7);
ColumnLayout layout3 = columnLayoutModel.Find(num6);
ColumnLayout layout4 = columnLayoutModel.Find(num8);
double x = -1.0;
double y = -1.0;
double height = 0.0;
double width = 0.0;
if ((layout != null) && (layout2 != null))
{
y = layout.Y;
height = (layout2.Y + layout2.Height) - layout.Y;
}
else if (rowLayoutModel.Count > 0)
{
y = rowLayoutModel[0].Y;
height = (rowLayoutModel[rowLayoutModel.Count - 1].Y + rowLayoutModel[rowLayoutModel.Count - 1].Height) - y;
}
if ((layout3 != null) && (layout4 != null))
{
x = layout3.X;
width = (layout4.X + layout4.Width) - layout3.X;
}
else if (columnLayoutModel.Count > 0)
{
x = columnLayoutModel[0].X;
width = (columnLayoutModel[columnLayoutModel.Count - 1].X + columnLayoutModel[columnLayoutModel.Count - 1].Width) - x;
}
return(new Rect(PointToClient(new Point(x, y)), new Size(width, height)));
}
void BuildSelection()
{
_cachedSelectionLayout.Clear();
_cachedFocusCellLayout = _rcEmpty;
_cachedSelectionFrameLayout = _rcEmpty;
_cachedActiveSelectionLayout = _rcEmpty;
_cachedActiveSelection = null;
_activeRow = Excel.ActiveSheet.ActiveRowIndex;
_activeCol = Excel.ActiveSheet.ActiveColumnIndex;
_selectionLayer.IsAnchorCellInSelection = false;
var indicator = _selectionLayer.FocusIndicator;
RowLayoutModel rowLayoutModel = GetRowLayoutModel();
ColumnLayoutModel colLayoutModel = Excel.GetViewportColumnLayoutModel(ColumnViewportIndex);
if (rowLayoutModel == null ||
rowLayoutModel.Count == 0 ||
colLayoutModel == null ||
colLayoutModel.Count == 0)
{
indicator.HideAll();
return;
}
CellRange activeCellRange = GetActiveCellRange();
List <CellRange> ranges = new List <CellRange>((IEnumerable <CellRange>)Excel.ActiveSheet.Selections);
if (ranges.Count == 0)
{
ranges.Add(activeCellRange);
}
int rangeCount = ranges.Count;
Size viewportSize = GetViewportSize();
Rect rectViewport = new Rect(0.0, 0.0, viewportSize.Width, viewportSize.Height);
int topRow = rowLayoutModel[0].Row;
int bottomRow = rowLayoutModel[rowLayoutModel.Count - 1].Row;
int leftCol = colLayoutModel[0].Column;
int rightCol = colLayoutModel[colLayoutModel.Count - 1].Column;
for (int i = 0; i < rangeCount; i++)
{
CellRange range = ranges[i];
if (range.Contains(_activeRow, _activeCol))
{
_selectionLayer.IsAnchorCellInSelection = true;
}
int num7 = (range.Row < 0) ? 0 : range.Row;
int num8 = (range.Column < 0) ? 0 : range.Column;
int rowCount = (range.RowCount < 0) ? Excel.ActiveSheet.RowCount : range.RowCount;
int columnCount = (range.ColumnCount < 0) ? Excel.ActiveSheet.ColumnCount : range.ColumnCount;
range = new CellRange(num7, num8, rowCount, columnCount);
Rect rect2 = GetRangeBounds(range);
rect2.Intersect(rectViewport);
if (rect2.IsEmpty)
{
continue;
}
_cachedSelectionLayout.Add(new Rect(rect2.Left + 1.0, rect2.Top + 1.0, Math.Max((double)0.0, (double)(rect2.Width - 3.0)), Math.Max((double)0.0, (double)(rect2.Height - 3.0))));
if (range.Contains(activeCellRange))
{
Rect rect3 = new Rect(rect2.Left + 1.0, rect2.Top + 1.0, Math.Max((double)0.0, (double)(rect2.Width - 3.0)), Math.Max((double)0.0, (double)(rect2.Height - 3.0)));
if (_cachedActiveSelectionLayout.IsEmpty || (rangeCount == 1))
{
_cachedActiveSelectionLayout = rect3;
_cachedActiveSelection = range;
}
else
{
Rect rect4 = new Rect(rect3.Left, rect3.Top, rect3.Width, rect3.Height);
rect4.Intersect(_cachedActiveSelectionLayout);
if (rect4.IsEmpty)
{
_cachedActiveSelectionLayout = rect3;
_cachedActiveSelection = range;
}
else if (ContainsRect(rect3, _cachedActiveSelectionLayout))
{
_cachedActiveSelectionLayout = rect3;
_cachedActiveSelection = range;
}
}
}
}
Rect rangeBounds = GetRangeBounds(activeCellRange);
if (!rangeBounds.IsEmpty)
{
rangeBounds = new Rect(rangeBounds.Left + 1.0, rangeBounds.Top + 1.0, Math.Max((double)0.0, (double)(rangeBounds.Width - 3.0)), Math.Max((double)0.0, (double)(rangeBounds.Height - 3.0)));
}
_cachedFocusCellLayout = rangeBounds;
// 只一个选择区域
if (rangeCount == 1)
{
CellRange range = ranges[0];
if (!_selectionLayer.IsAnchorCellInSelection)
{
range = activeCellRange;
}
Rect bounds = GetRangeBounds(range);
bounds.Intersect(rectViewport);
if (bounds.IsEmpty)
{
indicator.HideAll();
return;
}
if ((range.Row == -1) && (range.Column == -1))
{
// 全选
indicator.Thickness = 1.0;
_cachedSelectionFrameLayout = bounds;
}
else if (!_selectionLayer.IsAnchorCellInSelection)
{
indicator.Thickness = 1.0;
_cachedSelectionFrameLayout = new Rect(bounds.Left, bounds.Top, bounds.Width, bounds.Height);
}
else
{
indicator.Thickness = 3.0;
_cachedSelectionFrameLayout = new Rect(bounds.Left - 2.0, bounds.Top - 2.0, bounds.Width + 3.0, bounds.Height + 3.0);
}
if (!Excel.IsDraggingFill && range.Intersects(topRow, leftCol, rowLayoutModel.Count, colLayoutModel.Count))
{
if (range.Row == -1)
{
indicator.IsTopVisible = topRow == 0;
indicator.IsBottomVisible = bottomRow == (Excel.ActiveSheet.RowCount - 1);
}
else
{
indicator.IsTopVisible = (range.Row >= topRow) && (range.Row <= bottomRow);
int num11 = (range.Row + range.RowCount) - 1;
indicator.IsBottomVisible = (num11 >= topRow) && (num11 <= bottomRow);
}
if (range.Column == -1)
{
indicator.IsLeftVisible = leftCol == 0;
indicator.IsRightVisible = rightCol == (Excel.ActiveSheet.ColumnCount - 1);
}
else
{
indicator.IsLeftVisible = (range.Column >= leftCol) && (range.Column <= rightCol);
int num12 = (range.Column + range.ColumnCount) - 1;
indicator.IsRightVisible = (num12 >= leftCol) && (num12 <= rightCol);
}
}
else
{
indicator.IsTopVisible = false;
indicator.IsBottomVisible = false;
indicator.IsLeftVisible = false;
indicator.IsRightVisible = false;
}
if (Excel.CanUserDragFill)
{
if (!Excel.IsDraggingFill)
{
if (((bounds.Width == 0.0) || (bounds.Height == 0.0)) || (indicator.Thickness == 1.0))
{
indicator.IsFillIndicatorVisible = false;
}
else if ((range.Row != -1) && (range.Column != -1))
{
bool flag = indicator.IsRightVisible && indicator.IsBottomVisible;
if (Excel.InputDeviceType == InputDeviceType.Touch)
{
flag = false;
}
indicator.IsFillIndicatorVisible = flag;
if (flag)
{
indicator.FillIndicatorPosition = FillIndicatorPosition.BottomRight;
}
}
else if ((range.Row != -1) && (range.Column == -1))
{
ViewportInfo viewportInfo = Excel.GetViewportInfo();
bool flag2;
if (Excel.ActiveSheet.FrozenColumnCount == 0)
{
flag2 = (ColumnViewportIndex >= 0) && (ColumnViewportIndex < viewportInfo.ColumnViewportCount);
}
else
{
flag2 = (ColumnViewportIndex == -1) || ((ColumnViewportIndex >= 1) && (ColumnViewportIndex < viewportInfo.ColumnViewportCount));
}
flag2 = flag2 && indicator.IsBottomVisible;
if (Excel.InputDeviceType == InputDeviceType.Touch)
{
flag2 = false;
}
indicator.IsFillIndicatorVisible = flag2;
if (flag2)
{
indicator.FillIndicatorPosition = FillIndicatorPosition.BottomLeft;
}
}
else if ((range.Column != -1) && (range.Row == -1))
{
ViewportInfo info2 = Excel.GetViewportInfo();
bool flag3;
if (Excel.ActiveSheet.FrozenRowCount == 0)
{
flag3 = (RowViewportIndex >= 0) && (RowViewportIndex < info2.RowViewportCount);
}
else
{
flag3 = (RowViewportIndex == -1) || ((RowViewportIndex >= 1) && (RowViewportIndex < info2.RowViewportCount));
}
flag3 = flag3 && indicator.IsRightVisible;
if (Excel.InputDeviceType == InputDeviceType.Touch)
{
flag3 = false;
}
indicator.IsFillIndicatorVisible = flag3;
if (flag3)
{
indicator.FillIndicatorPosition = FillIndicatorPosition.TopRight;
}
}
else
{
indicator.IsFillIndicatorVisible = false;
}
}
}
else
{
indicator.IsFillIndicatorVisible = false;
}
return;
}
// 多个选择区域
Rect rect7 = GetRangeBounds(activeCellRange);
if (!rect7.IsEmpty)
{
indicator.Thickness = 1.0;
_cachedSelectionFrameLayout = rect7;
_cachedSelectionFrameLayout.Width = Math.Max((double)0.0, (double)(_cachedSelectionFrameLayout.Width - 1.0));
_cachedSelectionFrameLayout.Height = Math.Max((double)0.0, (double)(_cachedSelectionFrameLayout.Height - 1.0));
int num13 = 0;
int num14 = 0;
int num15 = 0;
int num16 = 0;
for (int j = 0; j < rangeCount; j++)
{
CellRange range4 = ranges[j];
if (range4 != null)
{
if (activeCellRange.Row == range4.Row)
{
num14 = 1;
}
if (activeCellRange.Column == range4.Column)
{
num13 = 1;
}
if (activeCellRange.Row == ((range4.Row + range4.RowCount) - 1))
{
num16 = 1;
}
if (activeCellRange.Column == ((range4.Column + range4.ColumnCount) - 1))
{
num15 = 1;
}
}
}
_cachedSelectionFrameLayout.Y += num14;
_cachedSelectionFrameLayout.Height = Math.Max((double)0.0, (double)(_cachedSelectionFrameLayout.Height - (num14 + num16)));
_cachedSelectionFrameLayout.X += num13;
_cachedSelectionFrameLayout.Width = Math.Max((double)0.0, (double)(_cachedSelectionFrameLayout.Width - (num13 + num15)));
}
indicator.IsBottomVisible = true;
indicator.IsTopVisible = true;
indicator.IsLeftVisible = true;
indicator.IsRightVisible = true;
indicator.IsFillIndicatorVisible = false;
}
void ArrangeRowGroups(double buttonSize)
{
double num4;
double y;
double num3 = Math.Max((double)0.0, (double)((buttonSize - 6.0) / 2.0)) + 2.0;
_excel.GetSheetLayout();
RowLayoutModel rowLayoutModel = _excel.GetRowLayoutModel(ViewportIndex, SheetArea.Cells);
foreach (GroupDotInfo info in _groupDotInfos)
{
RowLayout layout = rowLayoutModel.Find(info.Index);
if ((layout != null) && (layout.Height >= 2.0))
{
num4 = (base.Location.X + (info.Level * buttonSize)) + num3;
y = layout.Y + Math.Max((double)0.0, (double)((layout.Height - 2.0) / 2.0));
info.Dot.Arrange(new Rect(base.PointToClient(new Point(num4, y)), _dotSize));
}
}
RangeGroupDirection direction = _excel.ActiveSheet.RowRangeGroup.Direction;
foreach (GroupLineInfo info2 in _groupLineInfos)
{
RowLayout layout2 = rowLayoutModel.FindRow(info2.Start);
RowLayout layout3 = rowLayoutModel.FindRow(info2.End);
if ((layout2 != null) && (layout3 != null))
{
Rectangle line = info2.Line;
num4 = (base.Location.X + (info2.Level * buttonSize)) + num3;
y = layout2.Y;
switch (direction)
{
case RangeGroupDirection.Forward:
y++;
break;
case RangeGroupDirection.Backward:
y--;
break;
}
double num8 = 2.0;
double num9 = Math.Max((double)0.0, (double)(((layout3.Y + layout3.Height) - layout2.Y) - 1.0));
line.Arrange(new Rect(base.PointToClient(new Point(num4, y)), new Size(num8, num9)));
Rectangle startLine = info2.StartLine;
if (startLine != null)
{
double num10 = Math.Min((double)6.0, (double)(buttonSize - 2.0));
if (num10 > 0.0)
{
if (direction == RangeGroupDirection.Backward)
{
y = (y + num9) - 2.0;
}
if ((y >= layout2.Y) && (y < (layout3.Y + layout3.Height)))
{
startLine.Arrange(new Rect(base.PointToClient(new Point(num4, y)), new Size(num10, 2.0)));
}
}
}
}
}
foreach (GroupButtonInfo info3 in _groupButtonInfos)
{
RowLayout layout4 = rowLayoutModel.FindRow(info3.Button.Index);
if (layout4 != null)
{
GroupButton button = info3.Button;
double num11 = Math.Max((double)0.0, (double)((layout4.Height - buttonSize) / 2.0));
num4 = (base.Location.X + (button.Level * buttonSize)) + 2.0;
y = layout4.Y + num11;
double num12 = buttonSize;
double num13 = Math.Min(buttonSize, layout4.Height);
button.Arrange(new Rect(base.PointToClient(new Point(num4, y)), new Size(num12, num13)));
Rectangle rectangle3 = info3.Line;
if ((rectangle3 != null) && (num13 < layout4.Height))
{
num4 = (base.Location.X + (button.Level * buttonSize)) + num3;
y = layout4.Y;
double num14 = 2.0;
double num15 = num11;
if (info3.LineDirection == RangeGroupDirection.Backward)
{
y += num11 + num13;
num15 = (layout4.Height - num13) - num11;
}
rectangle3.Arrange(new Rect(base.PointToClient(new Point(num4, y)), new Size(num14, num15)));
}
}
}
}
protected override Size MeasureOverride(Size availableSize)
{
BuildSpanGraph();
// 频繁增删Children子元素会出现卡顿现象！
// Children = _rows + _recycledRows
RowLayoutModel rowLayoutModel = GetRowLayoutModel();
int less = rowLayoutModel.Count - Children.Count;
if (less > 0)
{
for (int i = 0; i < less; i++)
{
HeaderItem rowItem = new HeaderItem(this);
Children.Add(rowItem);
_recycledRows.Add(rowItem);
}
}
// 先回收不可见行
List <HeaderItem> rows = _rows.Values.ToList();
foreach (var rowItem in rows)
{
RowLayout layout = rowLayoutModel.FindRow(rowItem.Row);
if (layout == null || layout.Height <= 0.0)
{
_recycledRows.Add(rowItem);
_rows.Remove(rowItem.Row);
rowItem.Row = -1;
}
}
double x = Location.X;
double y = Location.Y;
double maxWidth = 0.0;
foreach (RowLayout layout in rowLayoutModel)
{
if (layout.Height <= 0.0)
{
continue;
}
bool updateAllCell = false;
HeaderItem rowItem = null;
if (!_rows.TryGetValue(layout.Row, out rowItem))
{
// 重新利用回收的行
rowItem = _recycledRows[0];
_recycledRows.RemoveAt(0);
rowItem.Row = layout.Row;
_rows.Add(layout.Row, rowItem);
updateAllCell = true;
}
rowItem.UpdateChildren(updateAllCell);
int z = rowItem.ContainsSpanCell ? _spanRowZIndexBase + rowItem.Row : _normalZIndexBase + rowItem.Row;
z = z % 0x7ffe;
Canvas.SetZIndex(rowItem, z);
rowItem.Location = new Point(x, y);
// 测量尺寸足够大，否则当单元格占多行时在uno上只绘一行！
rowItem.Measure(availableSize);
y += layout.Height;
maxWidth = Math.Max(maxWidth, rowItem.DesiredSize.Width);
}
// 测量回收的行
if (_recycledRows.Count > 0)
{
foreach (var rowItem in _recycledRows)
{
rowItem.Measure(_szEmpty);
}
}
return(new Size(maxWidth + Location.X, y));
}