public static void Clear(DataGridView dataGridView)
{
if (dataGridView.TopLeftHeaderCell.Tag == null)
{
dataGridView.TopLeftHeaderCell.Tag = new DataGridViewGenericData();
}
if (dataGridView.TopLeftHeaderCell.Tag.GetType() != typeof(DataGridViewGenericData))
{
return;
}
DataGridViewGenericData dataGridViewGenericData = (DataGridViewGenericData)dataGridView.TopLeftHeaderCell.Tag;
dataGridViewGenericData.RedoCellsStack.Clear();
dataGridViewGenericData.UndoCellsStack.Clear();
}
public static void UndoDataGridView(DataGridView dataGridView)
{
if (IsDoingUndoRedo)
{
return;
}
if (dataGridView.CurrentCell == null)
{
return;
}
CellLocation currentCell = DataGridViewHandler.GetCurrentCellLocation(dataGridView.CurrentCell);
if (dataGridView.TopLeftHeaderCell.Tag == null)
{
return;
}
if (dataGridView.TopLeftHeaderCell.Tag.GetType() != typeof(DataGridViewGenericData))
{
return;
}
DataGridViewGenericData undoAndRedo = (DataGridViewGenericData)dataGridView.TopLeftHeaderCell.Tag;
if (undoAndRedo.UndoCellsStack.Count > 0)
{
Dictionary <CellLocation, DataGridViewGenericCell> undoCells = undoAndRedo.UndoCellsStack.Pop();
Dictionary <CellLocation, DataGridViewGenericCell> redoCells = GetCellsFromStack(dataGridView, undoCells);
PushToRedoStack(dataGridView, redoCells);
IsDoingUndoRedo = true; //needs to be after PushToRedoStack or it will return
NuberOfItemsToEdit = undoCells.Count;
IsClipboardActive = true;
foreach (var cell in undoCells)
{
DataGridViewHandler.SetCellDataGridViewGenericCell(dataGridView, cell.Key.ColumnIndex, cell.Key.RowIndex, cell.Value, true);
}
NuberOfItemsToEdit = 0;
IsClipboardActive = false;
}
DataGridViewHandler.SetCurrentCellLocation(dataGridView, currentCell);
IsDoingUndoRedo = false;
}
public static bool CancelPushUndoStackIfNoChanges(DataGridView dataGridView)
{
if (IsDoingUndoRedo)
{
return(true);
}
if (dataGridView.TopLeftHeaderCell.Tag == null)
{
dataGridView.TopLeftHeaderCell.Tag = new DataGridViewGenericData();
}
if (dataGridView.TopLeftHeaderCell.Tag.GetType() != typeof(DataGridViewGenericData))
{
return(true);
}
DataGridViewGenericData undoAndRedo = (DataGridViewGenericData)dataGridView.TopLeftHeaderCell.Tag;
Dictionary <CellLocation, DataGridViewGenericCell> peekCells = undoAndRedo.UndoCellsStack.Count == 0 ? null : undoAndRedo.UndoCellsStack.Peek();
bool isEqual = true;
if (peekCells == null)
{
isEqual = false;
}
if (isEqual)
{
foreach (CellLocation cellLocation in peekCells.Keys)
{
DataGridViewGenericCell dataGridViewGenericCell =
DataGridViewHandler.CopyCellDataGridViewGenericCell(dataGridView, cellLocation.ColumnIndex, cellLocation.RowIndex);
if (peekCells[cellLocation] != dataGridViewGenericCell)
{
isEqual = false;
break;
}
}
}
if (isEqual)
{
undoAndRedo.UndoCellsStack.Pop();
}
return(isEqual);
}
public static Dictionary <CellLocation, DataGridViewGenericCell> PeekUndoStack(DataGridView dataGridView)
{
if (IsDoingUndoRedo)
{
return(null);
}
if (dataGridView.TopLeftHeaderCell.Tag == null)
{
dataGridView.TopLeftHeaderCell.Tag = new DataGridViewGenericData();
}
if (dataGridView.TopLeftHeaderCell.Tag.GetType() != typeof(DataGridViewGenericData))
{
return(null);
}
DataGridViewGenericData undoAndRedo = (DataGridViewGenericData)dataGridView.TopLeftHeaderCell.Tag;
return(undoAndRedo.UndoCellsStack.Count == 0 ? null : undoAndRedo.UndoCellsStack.Peek());
}
private static void PushToRedoStack(DataGridView dataGridView, Dictionary <CellLocation, DataGridViewGenericCell> cells)
{
if (IsDoingUndoRedo)
{
return;
}
if (dataGridView.TopLeftHeaderCell.Tag == null)
{
dataGridView.TopLeftHeaderCell.Tag = new DataGridViewGenericData();
}
if (dataGridView.TopLeftHeaderCell.Tag.GetType() != typeof(DataGridViewGenericData))
{
return;
}
DataGridViewGenericData undoAndRedo = (DataGridViewGenericData)dataGridView.TopLeftHeaderCell.Tag;
undoAndRedo.RedoCellsStack.Push(cells);
}
public static void PushToUndoStack(DataGridView dataGridView, Dictionary <CellLocation, DataGridViewGenericCell> cells)
{
if (IsDoingUndoRedo)
{
return;
}
if (dataGridView.TopLeftHeaderCell.Tag == null)
{
dataGridView.TopLeftHeaderCell.Tag = new DataGridViewGenericData();
}
if (dataGridView.TopLeftHeaderCell.Tag.GetType() != typeof(DataGridViewGenericData))
{
return;
}
DataGridViewGenericData undoAndRedo = (DataGridViewGenericData)dataGridView.TopLeftHeaderCell.Tag;
Dictionary <CellLocation, DataGridViewGenericCell> peekCells = undoAndRedo.UndoCellsStack.Count == 0 ? null : undoAndRedo.UndoCellsStack.Peek();
undoAndRedo.UndoCellsStack.Push(cells);
}