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void MyClass::OnFindDlgFind(wxFindDialogEvent& event)
{
// build the regex we're looking for
wxString strFind = event.GetFindString();
const int flagsFind = event.GetFlags();
if (strFind != m_strFind || flagsFind != m_flagsFind)
{
// need to (re)compile because either the text or the flags changed
int flagsRE = wxRE_EXTENDED | wxRE_NEWLINE;
if (!(flagsFind & wxFR_MATCHCASE))
flagsRE |= wxRE_ICASE;
if (flagsFind & wxFR_WHOLEWORD)
strFind = wxString(_T("[[:<:]]")) + strFind + _T("[[:>:]]");
if (!m_regexFind.Compile(strFind, flagsRE))
{
wxLogError(_("Invalid regular expression \"%s\"."), strFind.c_str());
return;
}
m_strFind = strFind;
m_flagsFind = flagsFind;
}
//else: ok, continue with the old regex
// start searching for it
const wxString text = tcText->GetValue();
if (!m_regexFind.Matches(text.c_str() + m_posFind))
{
// reset the selection but use m_posFind and not 0 to prevent the control
// from scrolling back to the origin if it had been scrolled down
textcontrol->SetSelection(m_posFind, m_posFind);
m_strFind.clear();
m_posFind = 0;
wxLogError(m_posFind ? _("No more matches") : _("No match"));
}
else // highlight the found text
{
size_t pos, len;
m_regexFind.GetMatch(&pos, &len);
// note that pos is relative to the start of search, i.e. m_posFind
m_posFind += pos;
textcontrol->SetSelection(m_posFind, m_posFind + len);
m_posFind += len;
}
}
