/// <summary>
/// Saves undo information.
/// </summary>
public void SaveState()
{
object[] objArray = null;
object[] objArray2 = null;
if ((sheet != null) && (rows != null))
{
int num = columnHeader ? sheet.ColumnHeader.RowCount : sheet.RowCount;
objArray = new object[rows.Length];
objArray2 = new object[rows.Length];
for (int i = 0; i < rows.Length; i++)
{
RowResizeExtent extent = rows[i];
objArray[i] = new double[(extent.LastRow - extent.FirstRow) + 1];
objArray2[i] = new bool[(extent.LastRow - extent.FirstRow) + 1];
for (int j = extent.FirstRow; j <= extent.LastRow; j++)
{
if ((0 <= j) && (j < num))
{
((double[])objArray[i])[j - extent.FirstRow] = columnHeader ? sheet.GetRowHeight(j, SheetArea.ColumnHeader) : sheet.GetRowHeight(j, SheetArea.Cells);
((bool[])objArray2[i])[j - extent.FirstRow] = columnHeader ? sheet.GetRowVisible(j, SheetArea.ColumnHeader) : sheet.GetRowVisible(j, SheetArea.Cells);
}
else
{
((double[])objArray[i])[j - extent.FirstRow] = -1.0;
((bool[])objArray2[i])[j - extent.FirstRow] = false;
}
}
}
}
oldVisibles = objArray2;
oldsizes = objArray;
}
/// <summary>
/// Performs the row resize action.
/// </summary>
/// <param name="sender">Object on which the action occurred.</param>
public override void Execute(object sender)
{
if (((sheet != null) && (rows != null)) && CanExecute(sender))
{
Excel view = sender as Excel;
int[] rowsResized = GetRowsResized(rows);
base.SuspendInvalidate(sender);
try
{
if ((view != null) && view.RaiseRowHeightChanging(rowsResized, columnHeader))
{
return;
}
SaveState();
ViewportInfo viewportInfo = sheet.GetViewportInfo();
int[] numArray2 = new int[viewportInfo.TopRows.Length];
for (int i = 0; i < viewportInfo.TopRows.Length; i++)
{
int num2 = viewportInfo.TopRows[i];
numArray2[i] = num2;
for (int k = num2 - 1; k >= sheet.FrozenRowCount; k--)
{
if (sheet.GetActualRowHeight(k, SheetArea.Cells) > 0.0)
{
break;
}
if (sheet.Rows[k].CanUserResize)
{
numArray2[i] = k;
}
}
}
int num4 = columnHeader ? sheet.ColumnHeader.RowCount : sheet.RowCount;
int num5 = 0x7fffffff;
for (int j = 0; j < rows.Length; j++)
{
RowResizeExtent extent = rows[j];
for (int m = extent.FirstRow; m <= extent.LastRow; m++)
{
if ((0 <= m) && (m < num4))
{
if ((columnHeader && sheet.GetRowResizable(m, SheetArea.ColumnHeader)) && (size != sheet.GetRowHeight(m, SheetArea.ColumnHeader)))
{
sheet.SetRowHeight(m, SheetArea.ColumnHeader, size);
}
else if (sheet.GetRowResizable(m, SheetArea.Cells) && (size != sheet.GetRowHeight(m, SheetArea.Cells)))
{
sheet.SetRowHeight(m, SheetArea.Cells, size);
}
num5 = Math.Min(m, num5);
}
}
}
if (num5 != 0x7fffffff)
{
for (int n = 0; n < viewportInfo.TopRows.Length; n++)
{
int num9 = viewportInfo.TopRows[n];
int num10 = numArray2[n];
if ((num5 <= num9) && (num9 != num10))
{
viewportInfo.TopRows[n] = num10;
}
}
}
}
finally
{
base.ResumeInvalidate(sender);
}
if (view != null)
{
view.InvalidateLayout();
view.InvalidateViewportHorizontalArrangement(-2);
view.InvalidateHeaderHorizontalArrangement();
view.InvalidateMeasure();
view.RefreshRange(-1, -1, -1, -1, SheetArea.Cells | SheetArea.ColumnHeader | SheetArea.RowHeader);
view.RefreshFloatingObjects();
view.RaiseRowHeightChanged(rowsResized, columnHeader);
}
}
}
/// <summary>
/// Undoes the row resizing action.
/// </summary>
/// <param name="sender">Object on which the action occurred.</param>
/// <returns><c>true</c> if successful; otherwise, <c>false</c>.</returns>
public bool Undo(object sender)
{
bool flag = false;
if ((sheet != null) && (rows != null))
{
Excel view = sender as Excel;
int[] rowsResized = GetRowsResized(rows);
base.SuspendInvalidate(sender);
try
{
if ((view != null) && view.RaiseRowHeightChanging(rowsResized, columnHeader))
{
return(true);
}
int num = columnHeader ? sheet.ColumnHeader.RowCount : sheet.RowCount;
for (int i = 0; i < rows.Length; i++)
{
RowResizeExtent extent = rows[i];
for (int j = extent.FirstRow; j <= extent.LastRow; j++)
{
double height = ((double[])oldsizes[i])[j - extent.FirstRow];
bool flag3 = ((bool[])oldVisibles[i])[j - extent.FirstRow];
if (((0 <= j) && (j < num)) && (height != -1.0))
{
if (columnHeader && sheet.GetRowResizable(j, SheetArea.ColumnHeader))
{
sheet.SetRowHeight(j, SheetArea.ColumnHeader, height);
flag = true;
}
else if (sheet.GetRowResizable(j, SheetArea.Cells))
{
sheet.SetRowHeight(j, SheetArea.Cells, height);
flag = true;
}
if (columnHeader && (sheet.GetRowVisible(j, SheetArea.ColumnHeader) != flag3))
{
sheet.SetRowVisible(j, SheetArea.ColumnHeader, flag3);
flag = true;
}
else if (sheet.GetRowVisible(j, SheetArea.Cells) != flag3)
{
sheet.SetRowVisible(j, SheetArea.Cells, flag3);
flag = true;
}
}
}
}
}
finally
{
base.ResumeInvalidate(sender);
}
if (view != null)
{
view.InvalidateLayout();
view.InvalidateViewportHorizontalArrangement(-2);
view.InvalidateHeaderHorizontalArrangement();
view.InvalidateMeasure();
view.RefreshRange(-1, -1, -1, -1, SheetArea.Cells | SheetArea.RowHeader);
view.RefreshFloatingObjects();
view.RaiseRowHeightChanged(rowsResized, columnHeader);
}
}
return(flag);
}
