public void visit(NonterminalHeadV nonterminalHeadV)
{
// visit rule
nonterminalHeadV.Rule.accept(this);
drawnItem = new NonterminalExpanded(nonterminalHeadV, drawnItem);
}
/// <summary>
/// Creates a visualised grammar based on the definitive grammar passed.
/// </summary>
/// <param name="dGrammarIn"></param>
internal VisualisedGrammar(DefinitiveGrammar dGrammarIn)
{
// obsolete - using vistor pattern
//startSymbol = dGrammarIn.StartSymbol.CreateVisualGrammar(true);
// create visitor
GrammarNodeDCreateVisualVisitor visitor = new GrammarNodeDCreateVisualVisitor();
// traverse tree
dGrammarIn.StartSymbol.accept(visitor);
if (visitor.CurrentNodeV as NonterminalHeadV == null)
throw new Exception("Creating the visualised grammar from the definitive failed.");
startSymbol = (NonterminalHeadV)visitor.CurrentNodeV;
}
private void Init(NonterminalHeadV startSymbolIn)
{
startSymbol = startSymbolIn;
}
public NonterminalExpanded(NonterminalHeadV ruleIn, UserControl visualisedSymbolsIn)
{
InitializeComponent();
Init(ruleIn, visualisedSymbolsIn, true);
}
private void Init(SymbolV ruleIn, UserControl visualisedSymbolsIn, bool isStartSymbolIn)
{
visualisedSymbols = visualisedSymbolsIn;
isStartSymbol = isStartSymbolIn;
if (isStartSymbol)
{
referenceHead = (NonterminalHeadV)ruleIn;
referenceTail = null;
setName(referenceHead.Name);
this.Background = Global.Settings.getBrush(0);
collapseBtn.Visibility = Visibility.Collapsed;
if (referenceHead.Reference.IsSelected)
SetBorderThickness(2.0);
rightClickMenu.Visibility = Visibility.Collapsed;
}
else
{
referenceHead = null;
referenceTail = (NonterminalTailV)ruleIn;
if ((referenceTail.Reference.Parent.Parent as OperationD).Children.Count == 1)
rightClickMenu.Items.Remove(removeChoice);
setName(referenceTail.Name);
this.Background = Global.Settings.getBrush(referenceTail.Level);
if (referenceTail.Reference.Reference.IsSelected)
SetBorderThickness(2.0);
}
// change direction of nont chilren if necessary
if (ruleIn.Direction)
{
// draw top to bottom
stackPanelOuter.Orientation = Orientation.Horizontal;
stackPanelHeading.Orientation = Orientation.Vertical;
stackPanelInner.Orientation = Orientation.Vertical;
stackPanelName.Orientation = Orientation.Horizontal;
arrow_down.Visibility = Visibility.Visible;
arrow_right.Visibility = Visibility.Collapsed;
}
// add child to GUI
stackPanelInner.Children.Remove(holder);
stackPanelInner.Children.Add(visualisedSymbols);
// let the controller hear me y'all
ViewController.ViewListener.Listen(this);
}
public void visit(NonterminalHeadV nonterminalHeadV)
{
// visit rule
nonterminalHeadV.Rule.accept(this);
}
/// <summary>
/// Set the reference if this nonterminal is the start symbol of the grammar
/// </summary>
/// <param name="refIn"></param>
public void SetReference(NonterminalHeadV refIn)
{
refStartSymbol = refIn;
}
internal void setRule(NonterminalHeadV nonterminalHeadV)
{
rule = nonterminalHeadV.Reference;
}
public Functions(NonterminalHeadV startSymbolIn)
{
startSymbol = startSymbolIn;
}
