// return prefixCode+number if the string is of the form "<prefix><number>" and
// 0 if it isn't
//
// first and last parameter specify the valid domain for "number" part
static int
IsNumberedAccelKey(const wxString& str,
const wxChar *prefix,
wxKeyCode prefixCode,
unsigned first,
unsigned last)
{
const size_t lenPrefix = wxStrlen(prefix);
if ( !CompareAccelString(str.Left(lenPrefix), prefix) )
return 0;
unsigned long num;
if ( !str.Mid(lenPrefix).ToULong(&num) )
return 0;
if ( num < first || num > last )
{
// this must be a mistake, chances that this is a valid name of another
// key are vanishingly small
wxLogDebug(_T("Invalid key string \"%s\""), str.c_str());
return 0;
}
return prefixCode + num - first;
}
/* static */
bool
wxAcceleratorEntry::ParseAccel(const wxString& text, int *flagsOut, int *keyOut)
{
// the parser won't like trailing spaces
wxString label = text;
label.Trim(true); // the initial \t must be preserved so don't strip leading whitespaces
// check for accelerators: they are given after '\t'
int posTab = label.Find(wxT('\t'));
if ( posTab == wxNOT_FOUND )
{
return false;
}
// parse the accelerator string
int accelFlags = wxACCEL_NORMAL;
wxString current;
for ( size_t n = (size_t)posTab + 1; n < label.length(); n++ )
{
if ( (label[n] == '+') || (label[n] == '-') )
{
if ( CompareAccelString(current, wxTRANSLATE("ctrl")) )
accelFlags |= wxACCEL_CTRL;
else if ( CompareAccelString(current, wxTRANSLATE("alt")) )
accelFlags |= wxACCEL_ALT;
else if ( CompareAccelString(current, wxTRANSLATE("shift")) )
accelFlags |= wxACCEL_SHIFT;
else // not a recognized modifier name
{
// we may have "Ctrl-+", for example, but we still want to
// catch typos like "Crtl-A" so only give the warning if we
// have something before the current '+' or '-', else take
// it as a literal symbol
if ( current.empty() )
{
current += label[n];
// skip clearing it below
continue;
}
else
{
wxLogDebug(wxT("Unknown accel modifier: '%s'"),
current.c_str());
}
}
current.clear();
}
else // not special character
{
current += (wxChar) wxTolower(label[n]);
}
}
int keyCode;
const size_t len = current.length();
switch ( len )
{
case 0:
wxLogDebug(wxT("No accel key found, accel string ignored."));
return false;
case 1:
// it's just a letter
keyCode = current[0U];
// if the key is used with any modifiers, make it an uppercase one
// because Ctrl-A and Ctrl-a are the same; but keep it as is if it's
// used alone as 'a' and 'A' are different
if ( accelFlags != wxACCEL_NORMAL )
keyCode = wxToupper(keyCode);
break;
default:
keyCode = IsNumberedAccelKey(current, wxTRANSLATE("F"),
WXK_F1, 1, 12);
if ( !keyCode )
{
for ( size_t n = 0; n < WXSIZEOF(wxKeyNames); n++ )
{
const wxKeyName& kn = wxKeyNames[n];
if ( CompareAccelString(current, kn.name) )
{
keyCode = kn.code;
break;
}
}
}
if ( !keyCode )
keyCode = IsNumberedAccelKey(current, wxTRANSLATE("KP_"),
WXK_NUMPAD0, 0, 9);
if ( !keyCode )
keyCode = IsNumberedAccelKey(current, wxTRANSLATE("SPECIAL"),
WXK_SPECIAL1, 1, 20);
if ( !keyCode )
{
wxLogDebug(wxT("Unrecognized accel key '%s', accel string ignored."),
current.c_str());
return false;
}
}
wxASSERT_MSG( keyCode, wxT("logic error: should have key code here") );
if ( flagsOut )
*flagsOut = accelFlags;
if ( keyOut )
*keyOut = keyCode;
return true;
}
