public void AddChild(Scope childScope)
{
if (childScope.Parent != null)
throw new InvalidOperationException("The child scope already has a parent.");
childScope.Parent = this;
Children.Add(childScope);
}
private static void BuildSpanForCapturedStyle(Scope scope,
IStyleSheet styleSheet,
TextWriter writer)
{
Color foreground = Color.Empty;
Color background = Color.Empty;
if (styleSheet.Styles.Contains(scope.Name)) {
Style style = styleSheet.Styles[scope.Name];
foreground = style.Foreground;
background = style.Background;
}
WriteElementStart("span", foreground, background, writer);
}
private static void GetStyleInsertionsForCapturedStyle(Scope scope, ICollection<TextInsertion> styleInsertions)
{
styleInsertions.Add(new TextInsertion {
Index = scope.Index,
Scope = scope
});
foreach (Scope childScope in scope.Children)
GetStyleInsertionsForCapturedStyle(childScope, styleInsertions);
styleInsertions.Add(new TextInsertion {
Index = scope.Index + scope.Length,
Text = "</span>"
});
}
private static void AddScopeToNestedScopes(Scope scope,
ref Scope currentScope,
ICollection<Scope> capturedStyleTree)
{
if (scope.Index >= currentScope.Index &&
(scope.Index + scope.Length <= currentScope.Index + currentScope.Length)) {
currentScope.AddChild(scope);
currentScope = scope;
}
else {
currentScope = currentScope.Parent;
if (currentScope != null)
AddScopeToNestedScopes(scope, ref currentScope, capturedStyleTree);
else
capturedStyleTree.Add(scope);
}
}
