C++ (Cpp) circular_buffer::erase Examples

Example #1

File: SearchDialog.cpp Project: menghun3/explorerplusplus

void CSearchDialog::SaveEntry(int comboBoxId, boost::circular_buffer<std::wstring> &buffer)
{
	TCHAR entry[MAX_PATH];
	GetDlgItemText(m_hDlg, comboBoxId, entry, SIZEOF_ARRAY(entry));

	std::wstring strEntry(entry);
	auto itr = std::find_if(buffer.begin(), buffer.end(),
		[strEntry] (const std::wstring Pattern)
	{
		return Pattern.compare(strEntry) == 0;
	});

	HWND hComboBox = GetDlgItem(m_hDlg, comboBoxId);
	ComboBox_SetCurSel(hComboBox, -1);

	if(itr != buffer.end())
	{
		/* Remove the current element from both the list and the
		combo box. It will be reinserted at the front of both below. */
		auto index = std::distance(buffer.begin(), itr);
		SendMessage(hComboBox, CB_DELETESTRING, index, 0);

		buffer.erase(itr);
	}

	buffer.push_front(entry);

	SendMessage(hComboBox, CB_INSERTSTRING, 0, reinterpret_cast<LPARAM>(entry));
	ComboBox_SetCurSel(hComboBox, 0);
	ComboBox_SetEditSel(hComboBox, -1, -1);

	if(ComboBox_GetCount(hComboBox) > buffer.capacity())
	{
		SendMessage(hComboBox, CB_DELETESTRING, ComboBox_GetCount(hComboBox) - 1, 0);
	}
}