Method ConvertAccelerator

source/script_gui.cpp:10900–10959

}

bool GuiType::ConvertAccelerator(LPTSTR aString, ACCEL &aAccel)
{
	aString = omit_leading_whitespace(aString);
	if (!*aString) // Multiple points below rely on this check.
		return false;

	// Omitting FVIRTKEY and storing a character code instead of a vk code allows the
	// accelerator to be triggered by Alt+Numpad and perhaps IME or other means. However,
	// testing shows that it also causes the modifier key flags to be ignored, so this
	// approach can only be used if aString is a lone character:
	if (!aString[1])
	{
		aAccel.key = (WORD)(TBYTE)*aString;
		aAccel.fVirt = 0;
		return true;
	}

	aAccel.fVirt = FVIRTKEY; // Init.

	modLR_type modLR = 0;

	LPTSTR cp;
	while (cp = _tcschr(aString + 1, '+')) // For each modifier.  +1 is used in case "+" is the key.
	{
		LPTSTR cp_end = omit_trailing_whitespace(aString, cp - 1);
		size_t len = cp_end - aString + 1;
		if (!_tcsnicmp(aString, _T("Ctrl"), len))
			modLR |= MOD_LCONTROL;
		else if (!_tcsnicmp(aString, _T("Alt"), len))
			modLR |= MOD_LALT;
		else if (!_tcsnicmp(aString, _T("Shift"), len))
			modLR |= MOD_LSHIFT;
		else
			return false;
		aString = omit_leading_whitespace(cp + 1);
		if (!*aString) // Below relies on this check.
			return false; // "Modifier+", but no key name.
	}

	// Now that any modifiers have been parsed and removed, convert the key name.
	// If only a single character remains, this may set additional modifiers.
	if (!aString[1])
	{
		// It seems preferable to treat "Ctrl+O" as ^o and not ^+o, so convert the character
		// to lower-case so that MOD_LSHIFT is added only for keys like "@". Seems best to use
		// the locale-dependent method, though somewhat debatable.
		aAccel.key = CharToVKAndModifiers(ltolower(*aString), &modLR, GetKeyboardLayout(0));
	}
	else
		aAccel.key = TextToVK(aString);

	if (modLR & MOD_LCONTROL)
		aAccel.fVirt |= FCONTROL;
	if (modLR & MOD_LALT) // Not MOD_RALT, which would mean AltGr (unsupported).
		aAccel.fVirt |= FALT;
	if (modLR & MOD_LSHIFT)
		aAccel.fVirt |= FSHIFT;