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// Windows/Control/ComboBox.cpp
#include "StdAfx.h"
#ifndef _UNICODE
#include "../../Common/StringConvert.h"
#endif
#include "ComboBox.h"
#ifndef _UNICODE
extern bool g_IsNT;
#endif
namespace NWindows {
namespace NControl {
LRESULT CComboBox::GetLBText(int index, CSysString &s)
{
s.Empty();
LRESULT len = GetLBTextLen(index); // length, excluding the terminating null character
if (len == CB_ERR)
return len;
LRESULT len2 = GetLBText(index, s.GetBuf((unsigned)len));
if (len2 == CB_ERR)
return len;
if (len > len2)
len = len2;
s.ReleaseBuf_CalcLen((unsigned)len);
return len;
}
#ifndef _UNICODE
LRESULT CComboBox::AddString(LPCWSTR s)
{
if (g_IsNT)
return SendMsgW(CB_ADDSTRING, 0, (LPARAM)s);
return AddString(GetSystemString(s));
}
LRESULT CComboBox::GetLBText(int index, UString &s)
{
s.Empty();
if (g_IsNT)
{
LRESULT len = SendMsgW(CB_GETLBTEXTLEN, MY_int_TO_WPARAM(index), 0);
if (len == CB_ERR)
return len;
LRESULT len2 = SendMsgW(CB_GETLBTEXT, MY_int_TO_WPARAM(index), (LPARAM)s.GetBuf((unsigned)len));
if (len2 == CB_ERR)
return len;
if (len > len2)
len = len2;
s.ReleaseBuf_CalcLen((unsigned)len);
return len;
}
AString sa;
const LRESULT len = GetLBText(index, sa);
if (len == CB_ERR)
return len;
s = GetUnicodeString(sa);
return (LRESULT)s.Len();
}
#endif
LRESULT CComboBox::AddString_SetItemData(LPCWSTR s, LPARAM lParam)
{
const LRESULT index = AddString(s);
// NOTE: SetItemData((int)-1, lParam) works as unexpected.
if (index >= 0) // optional check, because (index < 0) is not expected for normal inputs
SetItemData((int)index, lParam);
return index;
}
}}
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