/// <summary>
/// Searches for all occurrences of a text in the preview pane.
/// Highlights the first occurrence and ensures that it is shown in the preview.
/// </summary>
/// <param name="text">The search text.</param>
/// <param name="matchCase">Indicates whether to perform a case-sensitive search.</param>
/// <returns>True if at least one occurrence was found, false otherwise.</returns>
public bool Find(string text, bool matchCase)
{
if (string.IsNullOrEmpty(text))
{
return(false);
}
_findArgs = new C1TextSearchArgs();
_findArgs.Text = text;
_findArgs.IgnoreCase = !matchCase;
_finds = PreviewPane.TextSearchAll(_findArgs);
_findCurrent = _finds != null && _finds.Length > 0 ? 0 : -1;
if (_findCurrent != -1)
{
PreviewPane.SelectTextFragment(_finds[_findCurrent]);
PreviewPane.GoToSelection();
return(true);
}
else
{
return(false);
}
}
/// <summary>
/// Searches for the next occurrence of a text in the preview pane.
/// Highlights the found occurrence and ensures that it is shown in the preview.
/// If there are no more occurrences of the search text in the specified direction,
/// wraps to the beginning or end of the document.
/// </summary>
/// <param name="text">The search text.</param>
/// <param name="matchCase">Indicates whether to perform a case-sensitive search.</param>
/// <param name="up">Indicates whether to search up or down in the document.</param>
/// <returns>True if the next occurrence was found, false otherwise.</returns>
public bool FindNext(string text, bool matchCase, bool up)
{
if (_finds == null || _finds.Length == 0)
{
return(Find(text, matchCase));
}
else
{
if (!up)
{
++_findCurrent;
if (_findCurrent >= _finds.Length)
{
_findCurrent = 0;
}
}
else
{
--_findCurrent;
if (_findCurrent < 0)
{
_findCurrent = _finds.Length - 1;
}
}
if (_findCurrent >= 0 && _findCurrent < _finds.Length)
{
PreviewPane.SelectTextFragment(_finds[_findCurrent]);
PreviewPane.GoToSelection();
return(true);
}
else
{
return(false);
}
}
}