public HeaderPanel(Excel p_excel, SheetArea p_sheetArea)
{
Area = p_sheetArea;
Excel = p_excel;
CachedSpanGraph = new SpanGraph();
CellCache = new CellCachePool(GetDataContext());
_rows = new Dictionary <int, HeaderItem>();
_recycledRows = new List <HeaderItem>();
HorizontalAlignment = HorizontalAlignment.Left;
VerticalAlignment = VerticalAlignment.Top;
}
public CellsPanel(Excel p_excel)
{
Excel = p_excel;
_cachedSelectionLayout = new List <Rect>();
_cachedActiveSelectionLayout = Rect.Empty;
_cachedSelectionFrameLayout = new Rect();
_cachedFocusCellLayout = new Rect();
_editorBounds = new Rect();
_cachedDragFillRect = _rcEmpty;
_cellCachePool = new CellCachePool(Excel.ActiveSheet);
_cachedSpanGraph = new SpanGraph();
//--------------已移除 公式编辑层、图形层、数据校验层-------------------
// 1 行数据层
_rowsLayer = new RowsLayer(this);
Children.Add(_rowsLayer);
// 2 网格层，调整为只用在内容区域，行/列头不再使用
_borderLayer = new BorderLayer(this);
Children.Add(_borderLayer);
// 3 选择状态层
_selectionLayer = new SelectionLayer(this);
Children.Add(_selectionLayer);
// 4 拖拽复制层，点击右下角加号复制格内容
_dragFillLayer = CreateDragFillLayer();
Children.Add(_dragFillLayer);
// 5 新增修饰层，打印时页面边线
if (p_excel.ShowDecoration)
{
_decorationLayer = new DecorationLayer(this);
Children.Add(_decorationLayer);
}
// 6 编辑层
_editorLayer = new EditingLayer(this);
Children.Add(_editorLayer);
// 7 浮动对象层
_floatingLayer = new FloatingObjectLayer(this);
Children.Add(_floatingLayer);
// 8 浮动对象拖拽移动层
_floatingEditLayer = new FloatingObjectMovingLayer(this);
Children.Add(_floatingEditLayer);
HorizontalAlignment = HorizontalAlignment.Left;
VerticalAlignment = VerticalAlignment.Top;
}
//*** CellsPanel.Measure -> RowsLayer.Measure -> RowItem.UpdateChildren -> 行列改变时 CellItem.UpdateChildren -> RowItem.Measure -> CellItem.Measure ***//
public void UpdateChildren(bool p_updateAllCell)
{
// 频繁增删Children子元素会出现卡顿现象！
// Children = Cells + _recycledCells
ColumnLayoutModel colLayoutModel = GetColumnLayoutModel();
int less = colLayoutModel.Count - Children.Count + (_headingOverflowCell == null ? 0 : 1) + (_trailingOverflowCell == null ? 0 : 1);
if (less > 0)
{
for (int i = 0; i < less; i++)
{
var cell = new CellItem(this);
Children.Add(cell);
_recycledCells.Add(cell);
}
}
// 先回收不可见格
var cols = Cells.Values.ToList();
foreach (var cell in cols)
{
ColumnLayout layout = colLayoutModel.FindColumn(cell.Column);
if (layout == null || layout.Width <= 0.0)
{
PushRecycledCell(cell);
}
}
int updateCells = 0;
ContainsSpanCell = false;
SpanGraph cachedSpanGraph = OwnPanel.CachedSpanGraph;
for (int i = 0; i < colLayoutModel.Count; i++)
{
ColumnLayout colLayout = colLayoutModel[i];
if (colLayout.Width <= 0.0)
{
continue;
}
byte state = cachedSpanGraph.GetState(Row, colLayout.Column);
CellLayout layout = null;
if (state > 0)
{
CellLayoutModel cellLayoutModel = OwnPanel.GetCellLayoutModel();
if (cellLayoutModel != null)
{
layout = cellLayoutModel.FindCell(Row, colLayout.Column);
if (layout != null)
{
ContainsSpanCell = true;
}
}
}
CellItem cell = GetCell(colLayout.Column);
bool rangeChanged = false;
if (layout != null && layout.Width > 0.0 && layout.Height > 0.0)
{
CellRange range = ClipCellRange(layout.GetCellRange());
rangeChanged = (Row != range.Row) || (range.Column != colLayout.Column);
// 跨多列
if (layout.ColumnCount > 1)
{
// 移除跨度区域内的所有格
int maxCol = (layout.Column + layout.ColumnCount) - 1;
for (int j = i + 1; j < colLayoutModel.Count; j++)
{
int curCol = colLayoutModel[j].Column;
if (curCol > maxCol)
{
break;
}
i = j;
CellItem ci = GetCell(curCol);
if (ci != null)
{
PushRecycledCell(ci);
}
}
}
}
// 跨度不同不显示
if (rangeChanged)
{
if (cell != null)
{
PushRecycledCell(cell);
}
continue;
}
bool updated = false;
if (cell == null)
{
// 重新利用回收的格
cell = _recycledCells[0];
_recycledCells.RemoveAt(0);
cell.Column = colLayout.Column;
Cells.Add(colLayout.Column, cell);
updated = true;
}
cell.CellLayout = layout;
if (p_updateAllCell || updated)
{
cell.UpdateChildren();
updateCells++;
}
}
CellOverflowLayoutModel cellOverflowLayoutModel = OwnPanel.GetCellOverflowLayoutModel(Row);
if ((cellOverflowLayoutModel != null) && !cellOverflowLayoutModel.IsEmpty)
{
if (cellOverflowLayoutModel.HeadingOverflowlayout != null)
{
if (HeadingOverflowCell == null)
{
HeadingOverflowCell = new CellItem(this);
}
if (HeadingOverflowCell.Column != cellOverflowLayoutModel.HeadingOverflowlayout.Column)
{
HeadingOverflowCell.Column = cellOverflowLayoutModel.HeadingOverflowlayout.Column;
HeadingOverflowCell.UpdateChildren();
updateCells++;
}
}
else
{
HeadingOverflowCell = null;
}
if (cellOverflowLayoutModel.TrailingOverflowlayout != null)
{
if (TrailingOverflowCell == null)
{
TrailingOverflowCell = new CellItem(this);
}
if (TrailingOverflowCell.Column != cellOverflowLayoutModel.TrailingOverflowlayout.Column)
{
TrailingOverflowCell.Column = cellOverflowLayoutModel.TrailingOverflowlayout.Column;
TrailingOverflowCell.UpdateChildren();
updateCells++;
}
}
else
{
TrailingOverflowCell = null;
}
}
else
{
HeadingOverflowCell = null;
TrailingOverflowCell = null;
}
#if !IOS
// iOS在 MeasureOverride 内部调用子元素的 InvalidateMeasure 会造成死循环！
// 不重新测量会造成如：迷你图忽大忽小的情况
if (updateCells > 0)
{
InvalidateMeasure();
}
#endif
}
CellOverflowLayoutModel BuildCellOverflowLayoutModel(int rowIndex)
{
if (!Viewport.Excel.CanCellOverflow)
{
return(null);
}
ColumnLayoutModel viewportColumnLayoutModel = Viewport.Excel.GetViewportColumnLayoutModel(Viewport.ColumnViewportIndex);
if (viewportColumnLayoutModel == null)
{
return(null);
}
object textFormattingMode = null;
bool useLayoutRounding = Viewport.Excel.UseLayoutRounding;
SpanGraph cachedSpanGraph = Viewport.CachedSpanGraph;
CellOverflowLayoutModel result = new CellOverflowLayoutModel();
CellOverflowLayout layout = BuildHeadingCellOverflowLayoutModel(rowIndex, viewportColumnLayoutModel, textFormattingMode, useLayoutRounding);
result.HeadingOverflowlayout = layout;
for (int i = 0; i < viewportColumnLayoutModel.Count; i++)
{
Cell cachedCell;
CellOverflowLayout layout3;
CellOverflowLayout layout5;
ColumnLayout layout2 = viewportColumnLayoutModel[i];
if (layout2.Width > 0.0)
{
cachedCell = Viewport.CellCache.GetCachedCell(rowIndex, layout2.Column);
if ((((cachedCell != null) && !string.IsNullOrEmpty(cachedCell.Text)) && (!cachedCell.ActualWordWrap && !cachedCell.ActualShrinkToFit)) && (cachedSpanGraph.GetState(rowIndex, layout2.Column) == 0))
{
switch (cachedCell.ToHorizontalAlignment())
{
case HorizontalAlignment.Left:
case HorizontalAlignment.Stretch:
{
int deadColumnIndex = Enumerable.Last <ColumnLayout>((IEnumerable <ColumnLayout>)viewportColumnLayoutModel).Column + 1;
CellOverflowLayout item = BuildCellOverflowLayoutModelForLeft(cachedCell, rowIndex, false, deadColumnIndex, textFormattingMode, useLayoutRounding);
if (item != null)
{
result.Add(item);
int index = viewportColumnLayoutModel.IndexOf(viewportColumnLayoutModel.FindColumn(item.EndingColumn));
if (index > -1)
{
i = index;
}
}
break;
}
case HorizontalAlignment.Center:
{
layout3 = new CellOverflowLayout(layout2.Column, 0.0);
int num3 = Enumerable.Last <ColumnLayout>((IEnumerable <ColumnLayout>)viewportColumnLayoutModel).Column + 1;
CellOverflowLayout layout4 = BuildCellOverflowLayoutModelForLeft(cachedCell, rowIndex, true, num3, textFormattingMode, useLayoutRounding);
num3 = viewportColumnLayoutModel[0].Column - 1;
layout5 = BuildCellOverflowLayoutModelForRight(cachedCell, rowIndex, result, true, num3, textFormattingMode, useLayoutRounding);
if (layout4 == null)
{
goto Label_01C1;
}
layout3.EndingColumn = layout4.EndingColumn;
layout3.BackgroundWidth += layout4.BackgroundWidth;
layout3.RightBackgroundWidth = layout4.RightBackgroundWidth;
goto Label_01E0;
}
case HorizontalAlignment.Right:
{
int num6 = viewportColumnLayoutModel[0].Column - 1;
CellOverflowLayout layout7 = BuildCellOverflowLayoutModelForRight(cachedCell, rowIndex, result, false, num6, textFormattingMode, useLayoutRounding);
if (layout7 != null)
{
result.Add(layout7);
}
break;
}
}
}
}
continue;
Label_01C1:
layout3.BackgroundWidth += layout2.Width / 2.0;
Label_01E0:
if (layout5 != null)
{
layout3.StartingColumn = layout5.StartingColumn;
layout3.BackgroundWidth += layout5.BackgroundWidth;
layout3.LeftBackgroundWidth = layout5.LeftBackgroundWidth;
}
else
{
layout3.BackgroundWidth += layout2.Width / 2.0;
}
if (layout3.BackgroundWidth > layout2.Width)
{
Size textSize = MeasureHelper.MeasureTextInCell(cachedCell, new Size(double.PositiveInfinity, double.PositiveInfinity), (double)Viewport.Excel.ZoomFactor, null, textFormattingMode, useLayoutRounding);
layout3.ContentWidth = MeasureHelper.ConvertTextSizeToExcelCellSize(textSize, (double)Viewport.Excel.ZoomFactor).Width;
result.Add(layout3);
}
}
result.TrailingOverflowlayout = BuildTrailingCellOverflowLayoutModel(rowIndex, viewportColumnLayoutModel, result, textFormattingMode, useLayoutRounding);
if (((result.Count <= 0) && (result.HeadingOverflowlayout == null)) && (result.TrailingOverflowlayout == null))
{
return(null);
}
return(result);
}