private HistoryService.HistoryItem?_GetSelectorItemUnderPoint(Point point)
{
HitTestResult hitTestResult = VisualTreeHelper.HitTest(_Selector, point);
DependencyObject element = hitTestResult.VisualHit;
while (element != null)
{
if (element.Equals(_Selector))
{
return(null);
}
object item = _Selector.ItemContainerGenerator.ItemFromContainer(element);
if (!item.Equals(DependencyProperty.UnsetValue))
{
HistoryService.HistoryItem historyItem = (HistoryService.HistoryItem)item;
return(historyItem);
}
element = (DependencyObject)VisualTreeHelper.GetParent(element);
}
return(null);
}
public object Convert(object value, Type targetType, object parameter, CultureInfo culture)
{
Debug.Assert(value is HistoryService.HistoryItem);
Debug.Assert(targetType.Equals(typeof(ICollection <Inline>)));
Debug.Assert(value != null);
HistoryService.HistoryItem item = (HistoryService.HistoryItem)value;
List <Inline> inlines = new List <Inline>();
int startIndex = 0;
int nextIndex = 0;
do
{
nextIndex = item.String.IndexOf(item.Substring, startIndex, StringComparison.InvariantCultureIgnoreCase);
if (nextIndex == -1) // add remaining ordinary text
{
inlines.Add(new Run(item.String.Substring(startIndex)));
}
else
{
if (nextIndex != startIndex) // add ordinal text
{
inlines.Add(new Run(item.String.Substring(startIndex, nextIndex - startIndex)));
}
inlines.Add(new Bold(new Underline(new Run(item.String.Substring(nextIndex, item.Substring.Length)))));
startIndex = nextIndex + item.Substring.Length;
}
}while (nextIndex != -1);
return(inlines);
}
private void _SetHistoryItemToTextBox(HistoryService.HistoryItem historyItem)
{
_TextBox.Text = ((HistoryService.HistoryItem)historyItem).String;
_TextBox.CaretIndex = _TextBox.Text.Length;
}
