public AbstractBeatCodeAction(Row row, string headerText)
{
Row = row;
if (!row.BeatCodeIsCurrent)
{
row.UpdateBeatCode();
}
BeforeBeatCode = row.BeatCode;
BeforeOffset = row.OffsetValue;
HeaderText = headerText;
// Find the right index
CellTree selectedCells = EditorViewController.Instance.DView.SelectedCells;
// get current selection range if it's in this row
//int selectionStart = -1;
//int rowLengthBefore = Row.Cells.Count;
// get selection indexes if there is a selection in the action's row
if (selectedCells.Root != null && selectedCells.Root.Cell.Row == Row)
{
// find index of first selected cell
//selectionStart = 0;
//foreach (Cell c in Row.Cells)
//{
// if (c.IsSelected) break;
// selectionStart++;
//}
RightIndexBoundOfTransform = selectedCells.Min.Cell.Index + selectedCells.Count - 1;
}
}
public virtual void Undo()
{
// if no change, don't do anything
if (AfterBeatCode == BeforeBeatCode)
{
return;
}
CellTree selectedCells = EditorViewController.Instance.DView.SelectedCells;
// get current selection range if it's in this row
int selectionStart = -1;
int selectionEnd = -1;
// get selection indexes if there is a selection in the action's row
if (selectedCells.Root != null && selectedCells.Root.Cell.Row == Row)
{
// find index of first selected cell
selectionStart = selectedCells.Min.Cell.Index;
selectionEnd = selectedCells.Max.Cell.Index;
}
bool selectFromBack = selectionEnd > RightIndexBoundOfTransform;
if (selectFromBack)
{
// get index from back of list
selectionStart = Row.Cells.Count - selectionStart;
selectionEnd = Row.Cells.Count - selectionEnd;
}
Row.FillFromBeatCode(BeforeBeatCode);
if (BeforeOffset != AfterOffset)
{
Row.OffsetValue = BeforeOffset;
Row.Offset = BeatCell.Parse(BeforeOffset);
}
if (ChangesViewWidth)
{
double maxDur = DrawingView.Instance.Rows.Max(x => x.Duration);
DrawingView.Instance.ResizeFrame(maxDur, false);
}
else
{
EditorViewController.Instance.DView.QueueRowToDraw(Row);
RedrawReferencers();
}
EditorViewController.Instance.DView.ChangesApplied = false;
// would be nice to only draw individual rows, but seems to be a problem
//DrawingView.Instance.NeedsDisplay = true;
if (selectionStart > -1)
{
if (selectFromBack)
{
// convert back to forward indexed
selectionStart = Row.Cells.Count - selectionStart;
selectionEnd = Row.Cells.Count - selectionEnd;
}
if (selectionStart < 0)
{
selectionStart = 0;
}
if (selectionEnd >= Row.Cells.Count)
{
selectionEnd = Row.Cells.Count - 1;
}
// make new selection
CellTreeNode startNode = Row.Cells.LookupIndex(selectionStart);
CellTreeNode endNode = Row.Cells.LookupIndex(selectionEnd);
EditorViewController.Instance.DView.SelectCell(startNode.Cell);
if (startNode != endNode)
{
EditorViewController.Instance.DView.SelectCell(endNode.Cell, true);
}
}
}
public virtual void Redo()
{
CellTree selectedCells = EditorViewController.Instance.DView.SelectedCells;
// get current selection range if it's in this row
int selectionStart = -1;
int selectionEnd = -1;
int rowLengthBefore = Row.Cells.Count;
// get selection indexes if there is a selection in the action's row
if (selectedCells.Root != null && selectedCells.Root.Cell.Row == Row)
{
// find index of first selected cell
selectionStart = selectedCells.Min.Cell.Index;
selectionEnd = selectedCells.Max.Cell.Index;
}
if (string.IsNullOrEmpty(AfterBeatCode))
{
// perform the transform and get the new beat code
Transformation();
AfterBeatCode = Row.Stringify();
AfterOffset = Row.OffsetValue;
}
bool selectFromBack = selectionEnd > RightIndexBoundOfTransform;
if (selectFromBack)
{
// get index from back of list
selectionStart = rowLengthBefore - selectionStart;
selectionEnd = rowLengthBefore - selectionEnd;
}
Row.FillFromBeatCode(AfterBeatCode);
if (BeforeOffset != AfterOffset)
{
Row.OffsetValue = AfterOffset;
Row.Offset = BeatCell.Parse(AfterOffset);
}
if (ChangesViewWidth)
{
double maxDur = DrawingView.Instance.Rows.Max(x => x.Duration);
// change the view's width
//var curFrame = DrawingView.Instance.Frame;
//curFrame.Width = (System.nfloat)(maxDur * DrawingView.ScalingFactor + 550);
//DrawingView.Instance.Frame = curFrame;
// need to draw the end portion of other rows
if (maxDur == Row.Duration)
{
DrawingView.Instance.ResizeFrame(maxDur);
}
else
{
ChangesViewWidth = false;
}
}
DrawingView.Instance.QueueRowToDraw(Row);
DrawingView.Instance.ChangesApplied = false;
RedrawReferencers();
if (selectionStart > -1)
{
if (selectFromBack)
{
// convert back to forward indexed
selectionStart = Row.Cells.Count - selectionStart;
selectionEnd = Row.Cells.Count - selectionEnd;
}
if (selectionStart < 0)
{
selectionStart = 0;
}
if (selectionEnd >= Row.Cells.Count)
{
selectionEnd = Row.Cells.Count - 1;
}
// make new selection
CellTreeNode startNode = Row.Cells.LookupIndex(selectionStart);
CellTreeNode endNode = Row.Cells.LookupIndex(selectionEnd);
if (startNode != null && endNode != null)
{
EditorViewController.Instance.DView.SelectCell(startNode.Cell);
if (startNode != endNode)
{
EditorViewController.Instance.DView.SelectCell(endNode.Cell, true);
}
}
}
}
