private void btnClear_Click(object sender, RoutedEventArgs e) { if (canvasMain.Children.Count == 0) { return; } else { if (MessageBox.Show("Are you sure to clear the Page", "Clear?", MessageBoxButton.YesNo) == MessageBoxResult.No) { return; } } grpStateOptions.IsEnabled = false; grpTransOptions.IsEnabled = false; btnInitial.IsChecked = btnFinal.IsChecked = false; TransitionDiagram newDiag = null; switch (machine) { case machines.Dfa: newDiag = new DfaTransitionDiagram(); break; case machines.Nfa: newDiag = new NfaTransitionDiagram(); break; case machines.Moore: newDiag = new MooreTransitionDiagram(); break; case machines.Mealy: newDiag = new MealyTransitionDiagram(); break; case machines.Turing: newDiag = new TuringTransitionDiagram(); break; } if (newDiag != null) { newDiag.inputs = diagram.inputs; newDiag.noOfInputs = diagram.noOfInputs; newDiag.outputs = diagram.outputs; canvasMain.Children.Clear(); newDiag.setCanvas(canvasMain); diagram = newDiag; } }
public void newMachine(machines type, TransitionDiagram newDiagram = null) { if (newDiagram != null) // don't clear the canvas, i.e. we are only updating the interface on conversions etc { ; } else { if (saveOnNewOrExit() == MessageBoxResult.Cancel) { return; } fileStatus.isEdited = false; loadedFilePath = ""; grammar = null; pda = null; mode = modes.Machines; GrammarTab.Visibility = pdaTab.Visibility = Visibility.Collapsed; transitionDiagramTab.Visibility = Visibility.Visible; ExecuteTab.Visibility = Visibility.Visible; ribbonMain.Visibility = Visibility.Visible; transitionDiagramTab.IsSelected = true; clearAllTextBoxes(); } //restore original settings btnFinal.IsChecked = btnInitial.IsChecked = false; btnAddState.IsChecked = btnAddTrans.IsChecked = btnSelect.IsChecked = false; btnNull.IsChecked = false; grpSymbols.IsEnabled = false; grpToolbox.IsEnabled = false; grpSelection.IsEnabled = false; btnStatistics.IsEnabled = false; grpStateOptions.IsEnabled = false; btnFinal.IsEnabled = true;// disabled in turing, moore, mealy grpTransOptions.IsEnabled = false; grpStringAcceptance.Visibility = Visibility.Collapsed; grpOutputProducer.Visibility = Visibility.Collapsed; btnNull.IsEnabled = false; //because they are changed in turing machine interface txtInput.Width = txtOutput.Width = 155; lblInput.Content = "Input "; //changed to input tape in turnig lblOutput.Content = "Output"; //changed to output tape in turnig grpDfaOptions.Visibility = grpNfaOptions.Visibility = grpMooreMealyOptions.Visibility = Visibility.Collapsed; switch (type) { case machines.Dfa: machine = machines.Dfa; if (newDiagram == null) { newDiagram = new DfaTransitionDiagram(); } diagram = newDiagram; spInputSymbols.IsEnabled = true; spOutputSymbols.IsEnabled = false; grpDfaOptions.Visibility = Visibility.Visible; grpStringAcceptance.Visibility = Visibility.Visible; Application.Current.MainWindow.Title = "DFA"; break; case machines.Nfa: machine = machines.Nfa; if (newDiagram == null) { newDiagram = new NfaTransitionDiagram(); } diagram = newDiagram; btnNullClosure.IsEnabled = false; // to be enabled on state selection spInputSymbols.IsEnabled = true; spOutputSymbols.IsEnabled = false; btnNull.IsEnabled = true; grpNfaOptions.Visibility = Visibility.Visible; grpStringAcceptance.Visibility = Visibility.Visible; Application.Current.MainWindow.Title = "NFA"; break; case machines.Moore: machine = machines.Moore; if (newDiagram == null) { newDiagram = new MooreTransitionDiagram(); } diagram = newDiagram; spInputSymbols.IsEnabled = true; spOutputSymbols.IsEnabled = true; btnFinal.IsEnabled = false; grpMooreMealyOptions.Visibility = Visibility.Visible; btnConvertToMoore.Visibility = Visibility.Collapsed; btnConvertToMealy.Visibility = Visibility.Visible; grpMooreMealyOptions.Header = "Moore Options"; grpOutputProducer.Visibility = Visibility.Visible; Application.Current.MainWindow.Title = "Moore Machine"; break; case machines.Mealy: machine = machines.Mealy; if (newDiagram == null) { newDiagram = new MealyTransitionDiagram(); } diagram = newDiagram; spInputSymbols.IsEnabled = true; spOutputSymbols.IsEnabled = true; btnFinal.IsEnabled = false; grpMooreMealyOptions.Visibility = Visibility.Visible; btnConvertToMoore.Visibility = Visibility.Visible; btnConvertToMealy.Visibility = Visibility.Collapsed; grpMooreMealyOptions.Header = "Mealy Options"; grpOutputProducer.Visibility = Visibility.Visible; Application.Current.MainWindow.Title = "Mealy Machine"; break; case machines.Turing: machine = machines.Turing; if (newDiagram == null) { newDiagram = new TuringTransitionDiagram(); } diagram = newDiagram; lblInput.Content = "Input Tape "; lblOutput.Content = "Output Tape"; spInputSymbols.IsEnabled = true; spOutputSymbols.IsEnabled = false; btnFinal.IsEnabled = false; grpOutputProducer.Visibility = Visibility.Visible; txtInput.Width = txtOutput.Width = 500; Application.Current.MainWindow.Title = "Turing Machine"; break; case machines.None: return; // deselected above } //enable common options grpSymbols.IsEnabled = true; grpToolbox.IsEnabled = true; grpSelection.IsEnabled = true; btnStatistics.IsEnabled = true; btnAddTrans.IsEnabled = false; State.resetLabels(); btnOk.IsEnabled = true; diagram.setCanvas(canvasMain); btnAddState.IsChecked = true; btnAddState_Click(btnAddState, null); // to set the mode as addState }