IEnumerator <KeyValuePair <string, string> > IEnumerable <KeyValuePair <string, string> > .GetEnumerator()
{
using (RegistryKey key = OpenFifoKey(true))
{
int nSize;
int nPos;
if (!RegistryUtils.TryGetIntValue(key, "_size", out nSize) || nSize < 1)
{
nSize = _defaultSize;
}
// This gives a very tiny race condition if used at the same time in
// two VS instances.
// We ignore this as it is just UI helper code and a user can't edit
// two windows at the same time
if (!RegistryUtils.TryGetIntValue(key, "_pos", out nPos) || (nPos < 0) || (nPos >= nSize))
{
nPos = 0;
}
HybridCollection <string> hs = new HybridCollection <string>();
hs.AddRange(key.GetValueNames());
for (int i = 0; i < nSize; i++)
{
int n = nPos - i;
while (n < 0)
{
n += nSize;
}
string s = "#" + n.ToString(CultureInfo.InvariantCulture);
if (hs.Contains(s))
{
string v = key.GetValue(s) as string;
if (v != null && (_allowWhiteSpace || !string.IsNullOrEmpty(v)))
{
yield return(new KeyValuePair <string, string>(s, v));
}
}
}
}
}
IDictionary <string, int> GetNumberValues(string regKey, string subKey)
{
if (string.IsNullOrEmpty(regKey))
{
throw new ArgumentNullException("regKey");
}
if (string.IsNullOrEmpty(subKey))
{
throw new ArgumentNullException("subKey");
}
IDictionary <string, int> values;
lock (_lock)
{
subKey = regKey + "\\" + subKey;
using (RegistryKey reg = OpenHKCUKey(subKey))
{
if (reg == null)
{
return(null);
}
HybridCollection <string> hs = new HybridCollection <string>();
hs.AddRange(reg.GetValueNames());
values = new Dictionary <string, int>(hs.Count);
foreach (string item in hs)
{
int width;
if (RegistryUtils.TryGetIntValue(reg, item, out width) && width > 0)
{
values.Add(item, width);
}
}
}
}
return(values);
}
public void Add(string item)
{
if (item == null)
{
throw new ArgumentNullException("item");
}
else if (!_allowWhiteSpace && string.IsNullOrEmpty(item))
{
return; // Don't add whitepace
}
using (RegistryKey key = OpenFifoKey(false))
{
int nSize;
int nPos;
if (!RegistryUtils.TryGetIntValue(key, "_size", out nSize) || nSize < 1)
{
nSize = _defaultSize;
key.SetValue("_size", _defaultSize);
}
// This gives a very tiny race condition if used at the same time in
// two VS instances.
// We ignore this as it is just UI helper code and a user can't edit
// two windows at the same time
if (!RegistryUtils.TryGetIntValue(key, "_pos", out nPos) || (nPos < 0) || (nPos >= nSize))
{
nPos = 0;
}
if (nPos < 0 || nPos >= nSize)
{
List <string> names = new List <string>(key.GetValueNames());
int nX = nSize;
for (int i = nSize - 1; i >= 0; i--)
{
if (names.Contains("#" + i.ToString(CultureInfo.InvariantCulture)))
{
break;
}
nX = i;
}
if (nX < nSize)
{
nPos = nX;
}
else
{
nPos = 0;
}
}
nPos++;
if (nPos > nSize)
{
nPos = 0;
}
key.SetValue("_pos", nPos);
key.SetValue("#" + nPos.ToString(CultureInfo.InvariantCulture), item);
}
}