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(svn r25672) -Fix: [Win32] Handle Unicode characters from outside the BMP correctly.

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This commit is contained in:
michi_cc 2013-08-05 20:36:40 +00:00
parent be50bc410f
commit d8fa0c7dd8
1 changed files with 20 additions and 1 deletions
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21
src/video/win32_v.cpp
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@ -439,12 +439,31 @@ static void PaintWindowThread(void *)
}
/** Forward key presses to the window system. */
static LRESULT HandleCharMsg(uint keycode, uint charcode)
static LRESULT HandleCharMsg(uint keycode, WChar charcode)
{
#if !defined(UNICODE)
wchar_t w;
int len = MultiByteToWideChar(_codepage, 0, (char*)&charcode, 1, &w, 1);
charcode = len == 1 ? w : 0;
#else
static WChar prev_char = 0;
/* Did we get a lead surrogate? If yes, store and exit. */
if (Utf16IsLeadSurrogate(charcode)) {
if (prev_char != 0) DEBUG(driver, 1, "Got two UTF-16 lead surrogates, dropping the first one");
prev_char = charcode;
return 0;
}
/* Stored lead surrogate and incoming trail surrogate? Combine and forward to input handling. */
if (prev_char != 0) {
if (Utf16IsTrailSurrogate(charcode)) {
charcode = Utf16DecodeSurrogate(prev_char, charcode);
} else {
DEBUG(driver, 1, "Got an UTF-16 lead surrogate without a trail surrogate, dropping the lead surrogate");
}
}
prev_char = 0;
#endif /* UNICODE */
HandleKeypress(keycode, charcode);