public override void Redo()
{
base.Redo();
if (ChangeOffset)
{
Row.Offset += Duration;
Row.OffsetValue = BeatCell.Add(Row.OffsetValue, BeatCodeDuration);
}
}
/// <summary>
/// Adds the cell to row below selection.
/// </summary>
protected void AddCellToRowBelowSelection()
{
Cell cell = new Cell(Row);
CellTreeNode cellNode = new CellTreeNode(cell);
cell.Position = FirstSelected.Cell.Position - DrawingView.Instance.GridSpacing * NumIntervals;
if (Row.Cells.Insert(cellNode))
{
Cell below = cellNode.Prev().Cell;
RightIndexBoundOfTransform = below.Index;
// add to applicable groups
AddToGroups(cell, below);
// see if the cell is being added to a rep group's LTM zone
Repeat repWithLtmToMod = null;
foreach (Repeat rg in below.RepeatGroups.Where(
x => x.ExclusiveCells.Last.Value == below && Position > below.Position + below.Duration))
{
repWithLtmToMod = rg;
}
// get new value string for below
StringBuilder val = new StringBuilder();
var sequence = cell.RepeatGroups
.Where(x => !FirstSelected.Cell.RepeatGroups.Contains(x) && x.Cells.First.Value != cell)
.Reverse()
.Select(x => x.Times);
int ltmFactor = sequence.Any() ? sequence.Aggregate((x, y) => x * y) : 1;
CellTreeNode c = cellNode;
while (c != FirstSelected)
{
if (!string.IsNullOrEmpty(c.Cell.Reference))
{
c = c.Next();
continue;
}
AddCellValueToAccumulator(c.Cell, cell, FirstSelected.Cell, val, ref ltmFactor);
c = c.Next();
}
val.Append('0').Append(BeatCell.MultiplyTerms(BeatCell.Invert(DrawingView.Instance.GridSpacingString), NumIntervals));
cell.Value = BeatCell.SimplifyValue(cell.GetValueDividedByMultFactors(BeatCell.Invert(val.ToString())));
string newValue = BeatCell.SimplifyValue(val.ToString());
if (repWithLtmToMod == null)
{
below.Value = below.GetValueDividedByMultFactors(BeatCell.Add(below.Value, newValue));//newValue);
below.Value = BeatCell.SimplifyValue(below.Value);
}
else
{
repWithLtmToMod.LastTermModifier =
repWithLtmToMod.GetValueDividedByMultFactor(
BeatCell.Subtract(repWithLtmToMod.LastTermModifier, newValue));
repWithLtmToMod.LastTermModifier = BeatCell.SimplifyValue(repWithLtmToMod.LastTermModifier);
}
}
}
/**
* In order to have mult group resizing:
* 1) Adding to a mult group from flat within that group,
* - the interval will need to be multiplied by the group factor
* - use the cell values that have said group's factor applied
*
* 2) adding from inside a mult group to outside that gorup
*
* 3) adding from before a mult group to after that group
*
* 4) adding from outside the group, into the group
* - like normal, use the actualValue inside of mult group. Multiply result by group factor to get
* base value.
*/
/**
* Add above row works like this:
* - if placed above all other cells, and above all rep group's LTMs,
* increase the previous last cell's or rep group LTM's duration
* * get the BPM value of the increment multiplied by how many ticks from last selected cell
* * to the new cell
* * Then subtract the accumulated value of all cells including rep groups from the total value.
* make new cell duration the increment value
*
* Add above selection, within row works like this:
* - Get the value of increment times # of ticks between last selected cell and new cell position
* - Subtract the accumulated values of all cells including rep groups to get the new value
* of the preceding cell OR a rep group's LTM if we are placing the cell inside of the LTM
* - The cells value is then the preceding cell's previous value minus it's new value.
*
* Add below row works like this:
* - Get the value of increment times # of ticks between first selected cell and new cell position
* - subtract the accumulated values of all cells and groups between selected cell and new cell
* to get the value of the new cell.
* - Subtract new cell value from row's offset to get the new offset
*
* add below section, within row works like this:
* - Get the increment * # of ticks value between the first selected cell and new cell postion
* - subtract the accumulated values of all cells and groups between selected cell and new cell
* to get the value of the new cell.
* - subtract new cell value from preceding cell / group LTM's old value to get value
*
*/
/**
* Test Cases:
*
* 1) Above row
* 2) Above row where last cell is in a repeat
* 3) Above row and within the duration of the last cell
* 4) Above selection and within row
* 5) ^ Where selection is in a repeat and new cell is not
* 6) ^ Where selection and new cell are in the same repeat
* 7) ^ Where new cell is in a repeat group
* 8) ^ Selection is in a repeat group that is nested
* 9) ^ new cell is in a repeat group that is nested
* 10) Below selection and within row
* 11) ^ Where selection is in a repeat and new cell is not
* 12) ^ Where selection and new cell are in the same repeat
* 13) ^ Where new cell is in a repeat group
* 14) ^ Selection is in a repeat group that is nested
* 15) ^ new cell is in a repeat group that is nested
* 16) Below the row, in offset area
* 17) ^ selection is in a repeat group
* 18) ^ there is a repeat group between the selection and the start
*/
/// <summary>
/// Adds the cell above row.
/// </summary>
protected void AddCellAboveRow()
{
Cell cell = new Cell(Row);
if (cell != null)
{
cell.Value = BeatCell.SimplifyValue(DrawingView.Instance.GridSpacingString);
cell.Position = LastSelected.Cell.Position + DrawingView.Instance.GridSpacing * NumIntervals;
// set new duration of previous cell
Cell below = Row.Cells.Max.Cell;
// if add above a reference, just drop it in and exit.
if (below.IsReference)
{
Row.Cells.Insert(cell);
return;
}
// find the value string
StringBuilder val = new StringBuilder();
int ltmFactor = LastSelected.Cell.RepeatGroups.Any() ?
LastSelected.Cell.RepeatGroups
.Reverse()
.Select(x => x.Times)
.Aggregate((x, y) => x * y) : 1;
CellTreeNode c = LastSelected;
while (c != null)
{
if (!string.IsNullOrEmpty(c.Cell.Reference))
{
c = c.Next();
continue;
}
AddCellValueToAccumulator(c.Cell, LastSelected.Cell, cell, val, ref ltmFactor);
c = c.Next();
}
val.Append('0').Append(BeatCell.MultiplyTerms(BeatCell.Invert(DrawingView.Instance.GridSpacingString), NumIntervals));
string valToAdd = BeatCell.Invert(BeatCell.SimplifyValue(val.ToString()));
// if last cell is in a rep group, we need to increase the LTM for that group
if (below.RepeatGroups.Any())
{
var rg = below.RepeatGroups.First.Value;
// add to the bottom repeat group's LTM
rg.LastTermModifier = BeatCell.SimplifyValue(rg.GetValueDividedByMultFactor(valToAdd));
}
else
{
// add to last cell's duration
below.Value = BeatCell.Add(below.GetValueDividedByMultFactors(valToAdd), below.Value);
}
Row.Cells.Insert(cell);
ChangesViewWidth = true;
}
}
protected override void Transformation()
{
string value = BeatCell.MultiplyTerms(Increment, Math.Abs(Times));
Cell last = Cells[Cells.Length - 1];
Cell first = Cells[0];
if (Row.Cells.Min.Cell == Cells[0])
{
// selection is at start of row, offset will be changed
if (ShiftingRight)
{
// add to offset
if (string.IsNullOrEmpty(Row.OffsetValue))
{
Row.OffsetValue = "0";
}
Row.OffsetValue = BeatCell.Add(Row.OffsetValue, first.GetValueDividedByMultFactors(value));
// subtract from last cell's value if not last cell of row
if (last != Row.Cells.Max.Cell)
{
last.Value = BeatCell.Subtract(last.Value, last.GetValueDividedByMultFactors(value));
}
}
else
{
// subtract from offset
Row.OffsetValue = BeatCell.Subtract(Row.OffsetValue, first.GetValueDividedByMultFactors(value));
// zero becomes an empty string, make it zero.
if (string.IsNullOrEmpty(Row.OffsetValue))
{
Row.OffsetValue = "0";
}
// add to last cell's value if not last cell of row
if (last != Row.Cells.Max.Cell)
{
last.Value = BeatCell.Add(last.Value, last.GetValueDividedByMultFactors(value));
}
}
}
else
{
Cell below = Row.Cells.LookupIndex(Cells[0].Index - 1).Cell;
// if below is last cell of a repeat group, we instead operate on that group's LTM
Repeat leftGroup = below.RepeatGroups.Where(x => x.ExclusiveCells.Last.Value == below).FirstOrDefault();
bool useLeftGroup = leftGroup != default(Repeat);
// if last cell in selection is last of a repeat group, operate on it's LTM
Repeat rightGroup = last.RepeatGroups.Where(x => x.ExclusiveCells.Last.Value == last).FirstOrDefault();
bool useRightGroup = rightGroup != default(Repeat);
if (ShiftingRight)
{
if (Cells.Last() == Row.Cells.Max.Cell)
{
ChangesViewWidth = true;
}
if (useLeftGroup)
{
// add to LTM
leftGroup.LastTermModifier = BeatCell.Add(leftGroup.LastTermModifier, leftGroup.GetValueDividedByMultFactor(value));
}
else
{
// add to below cell's value
below.Value = BeatCell.Add(below.Value, below.GetValueDividedByMultFactors(value));
}
// subtract from last cell's value if not last of row
if (last != Row.Cells.Max.Cell)
{
if (useRightGroup)
{
// subtract from LTM
rightGroup.LastTermModifier = BeatCell.Subtract(rightGroup.LastTermModifier, rightGroup.GetValueDividedByMultFactor(value));
}
else
{
last.Value = BeatCell.Subtract(last.Value, last.GetValueDividedByMultFactors(value));
}
}
}
else
{
if (useLeftGroup)
{
// subtract from LTM
leftGroup.LastTermModifier = BeatCell.Subtract(leftGroup.LastTermModifier, leftGroup.GetValueDividedByMultFactor(value));
}
else
{
// subtract from below cell's value
below.Value = BeatCell.Subtract(below.Value, below.GetValueDividedByMultFactors(value));
}
// add to last cell's value if not last in row
if (last != Row.Cells.Max.Cell)
{
if (useRightGroup)
{
rightGroup.LastTermModifier = BeatCell.Add(rightGroup.LastTermModifier, rightGroup.GetValueDividedByMultFactor(value));
}
else
{
last.Value = BeatCell.Add(last.Value, last.GetValueDividedByMultFactors(value));
}
}
}
}
Cells = null;
}
public RemoveCells(CellTree cells) : base(cells.Root.Cell.Row, cells.Count > 1 ? "Remove Cells" : "Remove Cell")
{
Cells = cells;
//Row = cells.Root.Cell.Row;
//PreviousCellValue = previousCellValue;
//Index = cells[0].Row.Cells.IndexOf(cells[0]);
StartNode = Row.Cells.LookupIndex(cells.Min.Cell.Index);
EndNode = Row.Cells.LookupIndex(cells.Max.Cell.Index);
StringBuilder duration = new StringBuilder();
// find all groups that are encompassed by the selection
HashSet <AbstractGroup> touchedGroups = new HashSet <AbstractGroup>();
Repeat groupBeingAppendedTo = null; // a group who's LTM is actively being augmented
Queue <Repeat> rgToAppendTo = new Queue <Repeat>(); // RGs that may need to have their LTM added to
//LinkedList<AbstractGroup> openedGroups = new LinkedList<AbstractGroup>();
//LinkedList<AbstractGroup> closedGroups = new LinkedList<AbstractGroup>();
foreach (Cell c in Cells)
{
//if (!string.IsNullOrEmpty(c.Reference)) continue;
foreach ((bool begun, AbstractGroup group) in c.GroupActions)
{
if (begun)
{
OpenedGroups.AddFirst(group);
}
else
{
ClosedGroups.AddFirst(group);
}
}
// add to the LTM of groups with a previous cell in the selection but not this cell
if (rgToAppendTo.Any() && !c.RepeatGroups.Contains(rgToAppendTo.Peek()))
{
groupBeingAppendedTo = rgToAppendTo.Dequeue();
}
if (groupBeingAppendedTo != null)
{
groupBeingAppendedTo.LastTermModifier = BeatCell.Add(groupBeingAppendedTo.LastTermModifier, c.Value);
}
int times = 1; // times this cell gets repeated
// track the times that each RG's LTM gets repeated
Dictionary <Repeat, int> lcmTimes = new Dictionary <Repeat, int>();
foreach (Repeat rg in c.RepeatGroups.Reverse())
{
// remove cell from group
rg.ExclusiveCells.Remove(c);
rg.Cells.Remove(c);
// remove break cells
if (rg.BreakCell == c)
{
rg.BreakCell = null;
}
if (touchedGroups.Contains(rg))
{
continue;
}
rgToAppendTo.Enqueue(rg);
touchedGroups.Add(rg);
if (
(StartNode.Cell == rg.ExclusiveCells.First?.Value || rg.Position > StartNode.Cell.Position) &&
(EndNode.Cell == rg.ExclusiveCells.Last?.Value || rg.Position + rg.Length < EndNode.Cell.Position))
{
RepGroups.Add(rg);
bool cellAboveBreak = rg.BreakCell != null && c.Position > rg.BreakCell.Position;
times *= rg.Times - (cellAboveBreak ? 1 : 0);
// multiply all nested rgs' LTMs by this groups repeat times.
foreach (KeyValuePair <Repeat, int> kv in lcmTimes)
{
bool aboveBreak = rg.BreakCell != null && kv.Key.Position > rg.BreakCell.Position;
lcmTimes[kv.Key] *= rg.Times - (aboveBreak ? 1 : 0);
}
lcmTimes.Add(rg, 1);
}
}
foreach (Multiply mg in c.MultGroups)
{
// remove cell from group
mg.ExclusiveCells.Remove(c);
if (touchedGroups.Contains(mg))
{
continue;
}
touchedGroups.Add(mg);
if (
(StartNode.Cell == mg.ExclusiveCells.First.Value || mg.Position > StartNode.Cell.Position) &&
(EndNode.Cell == mg.ExclusiveCells.Last.Value || mg.Position + mg.Length < EndNode.Cell.Position + EndNode.Cell.Duration))
{
MultGroups.Add(mg);
}
}
// get the double version of duration
Duration += c.Duration * times;
// get the string version of duration
// add cell's repeat durations if this cell is in the same scope as the first cell.
if ((!c.RepeatGroups.Any() && !StartNode.Cell.RepeatGroups.Any()) ||
c.RepeatGroups.Last?.Value == StartNode.Cell.RepeatGroups.Last?.Value)
{
duration.Append("+0").Append(BeatCell.MultiplyTerms(c.Value, times));
}
// add any LTM's from repeat groups
foreach (KeyValuePair <Repeat, int> kv in lcmTimes)
{
duration.Append("+0").Append(BeatCell.MultiplyTerms(kv.Key.LastTermModifier, kv.Value));
Duration += BeatCell.Parse(kv.Key.LastTermModifier) * kv.Value;
}
}
// Transfer group actions from deleted cells to the 2 cells outside the deleted group
//CellTreeNode after = EndNode.Next();
//CellTreeNode before = StartNode.Prev();
//
//if (after != null)
//{
// foreach (AbstractGroup group in openedGroups)
// {
// if (group.ExclusiveCells.Count > 0)
// {
// after.Cell.GroupActions.AddFirst((true, group));
// }
// }
//}
//
//if (before != null)
//{
// foreach (AbstractGroup group in closedGroups)
// {
// if (group.ExclusiveCells.Count > 0)
// {
// before.Cell.GroupActions.AddFirst((false, group));
// }
// }
//}
BeatCodeDuration = BeatCell.SimplifyValue(duration.ToString());
}
protected override void Transformation()
{
Cell firstCell = StartNode.Cell;
// remove cells
// remove groups
foreach (Repeat rg in RepGroups)
{
Row.RepeatGroups.Remove(rg);
}
foreach (Multiply mg in MultGroups)
{
Row.MultGroups.Remove(mg);
}
// check if first cell of selection is not row's first cell
if (firstCell.Index == 0)
{
// will be increasing the row offset, but only if
// selection is not part of a rep group that is not
// encompassed by the selection
if (!firstCell.RepeatGroups.Any() || !RepGroups.Contains(firstCell.RepeatGroups.First.Value))
{
// augment the row's offset
ChangeOffset = true;
}
}
else
{
Cell prevCell = StartNode.Prev().Cell;
if (prevCell != null)
{
// if previous cell is the last cell of a rep group, increase rep groups offset
Repeat groupToAddTo = null;
foreach (Repeat rg in prevCell.RepeatGroups.Reverse())
{
if (!firstCell.RepeatGroups.Contains(rg))
{
groupToAddTo = rg;
}
else
{
break;
}
}
if (groupToAddTo != null)
{
groupToAddTo.LastTermModifier = BeatCell.Add(groupToAddTo.LastTermModifier, BeatCodeDuration);
}
else if (!firstCell.RepeatGroups.Any() || prevCell.RepeatGroups.Contains(firstCell.RepeatGroups.Last.Value))
{
// otherwise, increase the prev cell's duration
// but only if it is not the cell prior to a repgroup for which first cell of select is first cell of the rep group.
prevCell.Value = BeatCell.Add(prevCell.Value, BeatCodeDuration);
}
// transfer the closing group actions to prev cell
foreach (AbstractGroup group in ClosedGroups)
{
if (RepGroups.Contains(group) || MultGroups.Contains(group))
{
continue;
}
if (prevCell.RepeatGroups.Contains(group) || prevCell.MultGroups.Contains(group))
{
prevCell.GroupActions.AddLast((false, group));
}
}
}
}
// do the transition of group actions
if (EndNode.Cell != Row.Cells.Max.Cell)
{
Cell nextCell = EndNode.Next().Cell;
// need to transfer the repeat group creation point to the next cell (if not a 1 cell group)
foreach (AbstractGroup group in OpenedGroups)
{
if (RepGroups.Contains(group) || MultGroups.Contains(group))
{
continue;
}
if (nextCell.RepeatGroups.Contains(group) || nextCell.MultGroups.Contains(group))
{
nextCell.GroupActions.AddFirst((true, group));
}
}
}
// remove cells from tree
while (StartNode != null)
{
var next = StartNode.Next();
Row.Cells.Remove(StartNode);
if (StartNode == EndNode)
{
break;
}
StartNode = next;
}
//foreach (CellTreeNode c in Row.Cells.GetRange(StartNode.Cell.Position, EndNode.Cell.Position))
//{
// Row.Cells.Remove(c);
//}
DrawingView.Instance.DeselectCells();
// no longer need these
RepGroups = null;
MultGroups = null;
Cells = null;
StartNode = null;
EndNode = null;
}