private void btnRedo_Click(object sender, RoutedEventArgs e)
{
btnSelect.IsEnabled = true;
if (Command.CanceledCommands.Count != 0)
{
Command lastCommand = Command.CanceledCommands.Pop();
if (lastCommand is AddFigureCommand)
{
PetriNetNode currentFigure = (lastCommand as AddFigureCommand).newFigure;
Shape shape = (lastCommand as AddFigureCommand).shape;
if (currentFigure.IsSelect)
{
currentFigure.IsSelect = false;
}
if ((lastCommand as AddFigureCommand).newFigure is VPlace)
{
//Place.places.Add(currentFigure as Place);
Net.places.Add(currentFigure as VPlace);
}
else
{
//Transition.transitions.Add(currentFigure as Transition);
Net.transitions.Add(currentFigure as VTransition);
}
//SetOfFigures.Figures.Add(currentFigure);
Canvas.SetLeft(shape, currentFigure.CoordX);
Canvas.SetTop(shape, currentFigure.CoordY);
MainModelCanvas.Children.Add(shape);
_allFiguresObjectReferences.Add(shape, currentFigure);
AddFigureCommand newCommand = new AddFigureCommand(currentFigure, shape);
Command.ExecutedCommands.Push(newCommand);
btnUndo.IsEnabled = true;
}
else if (lastCommand is AddArcCommand)
{
VArc newArc = (lastCommand as AddArcCommand).newArc;
if (newArc.IsSelect)
{
newArc.IsSelect = false;
}
Net.arcs.Add(newArc);
newArc.AddToThisArcsLists();
DrawArc(newArc);
RedrawArrowHeads(newArc);
AddArcCommand newCommand = new AddArcCommand(newArc);
Command.ExecutedCommands.Push(newCommand);
}
else if (lastCommand is AddTokensCommand)
{
PetriNetNode figure = (lastCommand as AddTokensCommand).markedPlace;
VPlace place = (VPlace)figure;
place.NumberOfTokens = (lastCommand as AddTokensCommand).oldNumber;
if (place.NumberOfTokens == 0)
{
RemoveTokens(place);
}
if (place.NumberOfTokens >= 0 && place.NumberOfTokens < 5)
{
MainModelCanvas.Children.Remove(place.NumberOfTokensLabel);
}
AddTokens(place);
int temp = (lastCommand as AddTokensCommand).oldNumber;
(lastCommand as AddTokensCommand).oldNumber = (lastCommand as AddTokensCommand).newNumber;
(lastCommand as AddTokensCommand).newNumber = temp;
AddTokensCommand newCommand = new AddTokensCommand(place, (lastCommand as AddTokensCommand).oldNumber,
(lastCommand as AddTokensCommand).newNumber);
Command.ExecutedCommands.Push(newCommand);
}
else if (lastCommand is ChangeNameCommand)
{
PetriNetNode namedFigure = (lastCommand as ChangeNameCommand).namedFigure;
namedFigure.Label = (lastCommand as ChangeNameCommand).oldName;
ChangeLabel(namedFigure, (lastCommand as ChangeNameCommand).oldName);
string temp = (lastCommand as ChangeNameCommand).oldName;
(lastCommand as ChangeNameCommand).oldName = (lastCommand as ChangeNameCommand).newName;
(lastCommand as ChangeNameCommand).newName = temp;
ChangeNameCommand newCommand = new ChangeNameCommand(namedFigure, (lastCommand as ChangeNameCommand).oldName,
(lastCommand as ChangeNameCommand).newName);
Command.ExecutedCommands.Push(newCommand);
}
else if (lastCommand is DragCommand)
{
foreach (PetriNetNode figure in Net.Nodes)
{
foreach (PetriNetNode afterDragFigure in (lastCommand as DragCommand).figuresAfterDrag)
{
if (figure.Id == afterDragFigure.Id)
{
figure.CoordX = afterDragFigure.CoordX;
figure.CoordY = afterDragFigure.CoordY;
}
}
}
//List<PetriNetNode> newList = SetOfFigures.Figures;
foreach (PetriNetNode figure in Net.Nodes)//newList)
{
MoveFigure(figure);
}
DragCommand newCommand = new DragCommand((lastCommand as DragCommand).figuresBeforeDrag,
(lastCommand as DragCommand).figuresAfterDrag);
Command.ExecutedCommands.Push(newCommand);
}
else if (lastCommand is DeleteCommand)
{
List <PetriNetNode> figures = (lastCommand as DeleteCommand).deletedFigures;
List <VArc> arcs = (lastCommand as DeleteCommand).deletedArcs;
DeleteFigures(figures, arcs);
DeleteCommand newCommand = new DeleteCommand(figures, arcs);
Command.ExecutedCommands.Push(newCommand);
}
else if (lastCommand is ChangeWeightCommand)
{
VArc arc = (lastCommand as ChangeWeightCommand).arc;
MainModelCanvas.Children.Remove((lastCommand as ChangeWeightCommand).oldWeightLabel);
arc.Weight = (lastCommand as ChangeWeightCommand).newWeight;
(lastCommand as ChangeWeightCommand).newWeightLabel.Content = arc.Weight;
Canvas.SetLeft((lastCommand as ChangeWeightCommand).newWeightLabel, (arc.From.CoordX + arc.To.CoordX) / 2);
Canvas.SetTop((lastCommand as ChangeWeightCommand).newWeightLabel, (arc.From.CoordY + arc.To.CoordY) / 2 - 5);
MainModelCanvas.Children.Add((lastCommand as ChangeWeightCommand).newWeightLabel);
arc.WeightLabel = (lastCommand as ChangeWeightCommand).newWeightLabel;
ChangeWeightCommand newCommand = new ChangeWeightCommand(arc, (lastCommand as ChangeWeightCommand).oldWeight,
arc.Weight, (lastCommand as ChangeWeightCommand).oldWeightLabel, arc.WeightLabel);
Command.ExecutedCommands.Push(newCommand);
}
else if (lastCommand is CutCommand)
{
cuttedOrCopiedArcs.Clear();
cuttedOrCopiedFigures.Clear();
List <PetriNetNode> figures = (lastCommand as CutCommand).cuttedFigures;
List <PetriNetNode> old = (lastCommand as CutCommand).oldFigures;
List <VArc> expArcs = (lastCommand as CutCommand).explicitlyCuttedArcs;
List <VArc> implArcs = (lastCommand as CutCommand).implicitlyCuttedArcs;
cuttedOrCopiedFigures.AddRange(figures);
cuttedOrCopiedArcs.AddRange(expArcs);
List <PetriNetNode> cutF = new List <PetriNetNode>();
List <VArc> cutA = new List <VArc>();
cutF.AddRange(cuttedOrCopiedFigures);
cutA.AddRange(implArcs);
CutFigures(cutF, cutA);
_selectedFigures.Clear();
_selectedArcs.Clear();
ReassignSelectedProperties();
CutCommand newCommand = new CutCommand(figures, old, expArcs, implArcs);
Command.ExecutedCommands.Push(newCommand);
}
else if (lastCommand is PasteCommand)
{
if (nothingToPaste == false)
{
List <PetriNetNode> figuresToPaste = (lastCommand as PasteCommand).pastedfigures;
List <VArc> arcsToPaste = (lastCommand as PasteCommand).pastedArcs;
double minX = figuresToPaste[0].CoordX, minY = figuresToPaste[0].CoordY;
foreach (PetriNetNode figure in figuresToPaste)
{
if (figure.CoordX < minX)
{
minX = figure.CoordX;
}
if (figure.CoordY < minY)
{
minY = figure.CoordY;
}
}
if (cutOrCopy == cutOrCopyMode.copy)
{
UnselectFigures();//(selectedFigures, selectedArcs);
}
foreach (PetriNetNode figure in figuresToPaste)
{
if (cutOrCopy == cutOrCopyMode.copy)
{
figure.DetectIdMatches(Net.Nodes);
}
figure.CoordX += -minX + ScrollViewerForMainModelCanvas.HorizontalOffset;
figure.CoordY += -minY + ScrollViewerForMainModelCanvas.VerticalOffset;
}
PasteCommand newCommand = new PasteCommand(figuresToPaste, arcsToPaste);
Command.ExecutedCommands.Push(newCommand);
if (cutOrCopy == cutOrCopyMode.cut)
{
arcsToPaste.RemoveAll(ShouldBeDeleted);
}
PasteFiguresAndArcs(figuresToPaste, arcsToPaste);
}
}
}
EnableUndoRedoButtons();
ReassignSelectedProperties();
if (Command.CanceledCommands.Count == 0)
{
btnRedo.IsEnabled = false;
}
if (Command.ExecutedCommands.Count > 0)
{
btnUndo.IsEnabled = true;
}
TurnOnSelectMode();
}
private void btnPaste_Click(object sender, RoutedEventArgs e)
{
btnUndo.IsEnabled = true;
_copies.Clear();
if (cuttedOrCopiedFigures.Count == 0)
{
nothingToPaste = true;
}
if (nothingToPaste == false)
{
double minX = cuttedOrCopiedFigures[0].CoordX, minY = cuttedOrCopiedFigures[0].CoordY;
foreach (PetriNetNode figure in cuttedOrCopiedFigures)
{
if (figure.CoordX < minX)
{
minX = figure.CoordX;
}
if (figure.CoordY < minY)
{
minY = figure.CoordY;
}
}
if (cutOrCopy == cutOrCopyMode.copy)
{
var copiedF = new List <PetriNetNode>();
var copiedA = new List <VArc>();
UnselectFigures();//(cuttedOrCopiedFigures, cuttedOrCopiedArcs);
foreach (PetriNetNode copiedFigure in cuttedOrCopiedFigures)
{
var x = copiedFigure.CoordX - minX + ScrollViewerForMainModelCanvas.HorizontalOffset + 40;
var y = copiedFigure.CoordY - minY + ScrollViewerForMainModelCanvas.VerticalOffset + 40;
PetriNetNode newFigure;
if (copiedFigure is VPlace)
{
newFigure = VPlace.Create(x, y);
Net.places.Add((VPlace)newFigure);
}
else
{
newFigure = VTransition.Create(x, y);
Net.transitions.Add((VTransition)newFigure);
}
//SetOfFigures.Figures.Add(newFigure);
copiedF.Add(newFigure);
newFigure.Label = copiedFigure.Label;
VPlace place = newFigure as VPlace;
if (place != null)
{
place.NumberOfTokens = (copiedFigure as VPlace).NumberOfTokens;
}
newFigure.IsSelect = true;
DrawFigure(newFigure);
_copies.Add(copiedFigure, newFigure);
MakeSelected(newFigure);
}
foreach (PetriNetNode fig in cuttedOrCopiedFigures)
{
foreach (var arc in fig.ThisArcs)
{
if (!cuttedOrCopiedArcs.Contains(arc))
{
continue;
}
PetriNetNode fromF;
_copies.TryGetValue(arc.From, out fromF);
PetriNetNode toF;
_copies.TryGetValue(arc.To, out toF);
var arcs = from ar in Net.arcs where ar.From == fromF && ar.To == toF select ar;
if (arcs.Any())
{
continue;
}
var newArc = new VArc(fromF, toF)
{
IsDirected = arc.IsDirected,
Weight = arc.Weight
};
newArc.AddToThisArcsLists();
DrawArc(newArc);
if (newArc.IsDirected)
{
var lineVisible = GetKeyByValueForArcs(newArc, DictionaryForArcs);
DrawArrowHeads(lineVisible);
GetKeyByValueForArcs(newArc, DictionaryForArrowHeads1).MouseDown += MouseArcDown;
GetKeyByValueForArcs(newArc, DictionaryForArrowHeads2).MouseDown += MouseArcDown;
}
newArc.IsSelect = true;
_selectedArcs.Add(newArc);
ColorArrow(newArc);
Net.arcs.Add(newArc);
copiedA.Add(newArc);
}
}
var newCommand = new PasteCommand(copiedF, copiedA);
Command.ExecutedCommands.Push(newCommand);
}
else if (cutOrCopy == cutOrCopyMode.cut && _numberOfPastes == 0)
{
_numberOfPastes++;
foreach (var figure in cuttedOrCopiedFigures)
{
foreach (var arc in figure.ThisArcs)
{
if (!cuttedOrCopiedArcs.Contains(arc))
{
cuttedOrCopiedArcs.Add(arc);
}
}
figure.CoordX += -minX + ScrollViewerForMainModelCanvas.HorizontalOffset;
figure.CoordY += -minY + ScrollViewerForMainModelCanvas.VerticalOffset;
}
var toDelete = PasteFiguresAndArcs(cuttedOrCopiedFigures, cuttedOrCopiedArcs);
foreach (var arc in toDelete)
{
cuttedOrCopiedArcs.Remove(arc);
arc.IsSelect = false;
_selectedArcs.Remove(arc);
Net.arcs.Remove(arc);
}
var figures = new List <PetriNetNode>();
var arcs1 = new List <VArc>();
figures.AddRange(cuttedOrCopiedFigures);
arcs1.AddRange(cuttedOrCopiedArcs);
var newCommand = new PasteCommand(figures, arcs1);
Command.ExecutedCommands.Push(newCommand);
}
Command.CanceledCommands.Clear();
}
_figuresBeforeDrag = CopyListOfFigures(Net.Nodes);
ReassignSelectedProperties();
TurnOnSelectMode();
btnPaste.Focusable = false;
}