internal virtual void OnSelecting()
{
if (selectedItemIndex < 0 || selectedItemIndex >= visibleItems.Count)
{
return;
}
tb.TextSource.Manager.BeginAutoUndoCommands();
try {
AutocompleteItem item = visibleItems[selectedItemIndex];
SelectingEventArgs args = new SelectingEventArgs()
{
Item = item,
SelectedIndex = selectedItemIndex
};
Menu.OnSelecting(args);
if (args.Cancel)
{
selectedItemIndex = args.SelectedIndex;
Invalidate();
return;
}
if (!args.Handled)
{
var fragment = Menu.Fragment;
DoAutocomplete(item, fragment);
}
Menu.Close();
//
SelectedEventArgs args2 = new SelectedEventArgs()
{
Item = item,
Tb = Menu.Fragment.tb
};
item.OnSelected(Menu, args2);
Menu.OnSelected(args2);
} finally {
tb.TextSource.Manager.EndAutoUndoCommands();
}
}
private void SetToolTip(AutocompleteItem autocompleteItem)
{
var title = visibleItems[selectedItemIndex].ToolTipTitle;
var text = visibleItems[selectedItemIndex].ToolTipText;
if (string.IsNullOrEmpty(title))
{
toolTip.ToolTipTitle = null;
toolTip.SetToolTip(this, null);
return;
}
if (string.IsNullOrEmpty(text))
{
toolTip.ToolTipTitle = null;
toolTip.Show(title, this, Width + 3, 0, 3000);
}
else
{
toolTip.ToolTipTitle = title;
toolTip.Show(text, this, Width + 3, 0, 3000);
}
}
private void DoAutocomplete(AutocompleteItem item, Range fragment)
{
string newText = item.GetTextForReplace();
//replace text of fragment
var tb = fragment.tb;
if (tb.Selection.ColumnSelectionMode)
{
var start = tb.Selection.Start;
var end = tb.Selection.End;
start.iChar = fragment.Start.iChar;
end.iChar = fragment.End.iChar;
tb.Selection.Start = start;
tb.Selection.End = end;
}
else
{
tb.Selection.Start = fragment.Start;
tb.Selection.End = fragment.End;
}
tb.InsertText(newText);
tb.Focus();
}