public FragmentUnit CreateFragment(TextBox box)
{
int index = Container.Children.IndexOf(box);
if (box.SelectionLength == 0 || box.SelectionLength == box.Text.Length)
{
return(null);
}
int start = box.SelectionStart;
int length = box.SelectionLength;
string text = box.SelectedText;
FragmentUnit unit = new FragmentUnit(_viewer, text);
if (start == 0)
{
box.Text = box.Text.Substring(length, box.Text.Length - length);
Container.Children.Insert(index, unit);
}
else if (start + length == box.Text.Length)
{
box.Text = box.Text.Substring(0, start);
Container.Children.Insert(index + 1, unit);
}
else
{
string prefix = box.Text.Substring(0, start);
string suffix = box.Text.Substring(start + length, box.Text.Length - start - length);
TextBox newbox = CreateTextBox(suffix);
box.Text = prefix;
Container.Children.Insert(index + 1, unit);
Container.Children.Insert(index + 2, newbox);
}
unit.DeleteFragment += new DeleteFragmentHandler(unit_DeleteFragment);
return(unit);
}
private void TriggerViewerFocusChanged(FragmentUnit unit)
{
ViewerFocusChangedHandler handler = ViewerFocusChanged;
if (handler != null)
{
handler(unit);
}
}
public void Initialize(SymbolManager manager)
{
_manager = manager;
FragmentUnit unit = new FragmentUnit(this);
TextBox box = unit.SetText("");
box.Text = "<Please input your sample>";
unit.Label = "Symbol" + _index++;
Symbol symbol = _manager.RegisterSymbol(unit.Label);
symbol.CreateExpression();
unit.Symbol = symbol;
Layout.Child = unit;
//Layout.Children.Add(unit);
SetFocus(null, unit);
}
public void Partition()
{
if (_focusTextBox == null || _focusUnit == null)
{
return;
}
FragmentUnit unit = _focusUnit.CreateFragment(_focusTextBox);
if (unit == null)
{
return;
}
unit.Label = "Symbol" + _index++;
Symbol symbol = _manager.RegisterSymbol(unit.Label);
symbol.CreateExpression();
unit.Symbol = symbol;
}
public void SetFocus(TextBox box, FragmentUnit unit)
{
_focusTextBox = box;
_focusUnit = unit;
TriggerViewerFocusChanged(unit);
}
void unit_DeleteFragment(FragmentUnit sender)
{
int position = this.Container.Children.IndexOf(sender);
int total = this.Container.Children.Count;
if (position == 0)
{
if (total > 1 && this.Container.Children[1] is TextBox)
{
string origin = (this.Container.Children[1] as TextBox).Text;
(this.Container.Children[1] as TextBox).Text = sender.GetContent() + origin;
this.Container.Children.RemoveAt(0);
}
else
{
TextBox tb = CreateTextBox(sender.GetContent());
this.Container.Children.RemoveAt(0);
this.Container.Children.Insert(0, tb);
}
}
else if (position == total - 1)
{
if (total > 1 && this.Container.Children[total - 2] is TextBox)
{
(this.Container.Children[total - 2] as TextBox).Text += sender.GetContent();
this.Container.Children.RemoveAt(position);
}
else
{
TextBox tb = CreateTextBox(sender.GetContent());
this.Container.Children.RemoveAt(position);
this.Container.Children.Insert(position, tb);
}
}
else
{
if (this.Container.Children[position - 1] is TextBox)
{
if (this.Container.Children[position + 1] is TextBox)
{
(this.Container.Children[position - 1] as TextBox).Text += sender.GetContent() + (this.Container.Children[position + 1] as TextBox).Text;
this.Container.Children.RemoveAt(position + 1);
this.Container.Children.RemoveAt(position);
}
else
{
(this.Container.Children[position - 1] as TextBox).Text += sender.GetContent();
this.Container.Children.RemoveAt(position);
}
}
else if (this.Container.Children[position + 1] is TextBox)
{
string origin = (this.Container.Children[position + 1] as TextBox).Text;
(this.Container.Children[position + 1] as TextBox).Text = sender.GetContent() + origin;
this.Container.Children.RemoveAt(position);
}
else
{
TextBox tb = CreateTextBox(sender.GetContent());
this.Container.Children.RemoveAt(position);
this.Container.Children.Insert(position, tb);
}
}
//_viewer.SetFocus(null, this);
}
void Partitioner_ViewerFocusChanged(Editor.FragmentUnit unit)
{
Editor.SetSymbol(unit.Symbol);
}
