public MitsubaOptionsPage(Rhino.PersistentSettings settings)
: base("Mitsuba")
{
m_settings = settings;
m_mitsubaSettings = new MitsubaSettings();
m_mitsubaSettings.Load(m_settings);
m_control = new MitsubaOptionsControl(ref m_mitsubaSettings);
}
public bool ContainsModifiedValues(PersistentSettings allUserSettings)
{
if (null != m_Settings && m_Settings.Count > 0)
{
foreach (var v in m_Settings)
{
if (v.Value.ValueDifferentThanDefault)
return true;
if (null != allUserSettings && allUserSettings.m_Settings.ContainsKey(v.Key) && 0 != string.Compare(v.Value.GetValue(false), allUserSettings.m_Settings[v.Key].GetValue(false), StringComparison.Ordinal))
return true;
}
}
return false;
}
internal void CopyFrom(PersistentSettings source)
{
if (null != source)
{
foreach (var item in source.m_Settings)
{
if (m_Settings.ContainsKey(item.Key))
m_Settings[item.Key].CopyFrom(item.Value);
else
m_Settings.Add(item.Key, new SettingValue(item.Value.GetValue(false), item.Value.GetValue(true)));
}
}
}
public PersistentSettings(PersistentSettings allUserSettings)
{
AllUserSettings = allUserSettings;
m_Settings = new Dictionary<string, SettingValue>();
m_SettingsValidators = new Dictionary<string, EventHandler<PersistentSettingsEventArgs>>();
}
/// <summary>
/// Reads existing settings for a plug-in and its associated commands.
/// Clears the dirty flag for the settings.
/// </summary>
/// <returns>
/// true if settings are successfully read. false if there was no existing
/// settings file to read, or if a read lock could not be acquired.
/// </returns>
public bool ReadSettingsHelper(bool localSettings)
{
if (m_PluginSettings == null)
{
m_PluginSettings = new PersistentSettings(AllUserPlugInSettings);
// If AllUserSettings is not null then we are reading local settings, when
// reading local settings first get values previously read from the All Users
// location and add them to the local dictionary so the settings will propagate
// to the current user.
if (localSettings && null != AllUserSettings)
m_PluginSettings.CopyFrom(AllUserPlugInSettings);
}
if (m_CommandSettingsDict == null)
{
m_CommandSettingsDict = new Dictionary<string, PersistentSettings>();
// If AllUserSettings is not null then we are reading local settings, when
// reading local settings first get values previously read from the All Users
// location and add them to the local dictionary so the settings will propagate
// to the current user.
if (null != AllUserSettings && null != AllUserSettings.m_CommandSettingsDict)
{
foreach (var item in AllUserSettings.m_CommandSettingsDict)
{
// Make a new settings dictionary to associate with this command
PersistentSettings settings = new PersistentSettings(item.Value);
// Copy settings from global command dictionary to local dictionary
settings.CopyFrom(item.Value);
// Add the settings to the local dictionary
m_CommandSettingsDict.Add(item.Key, settings);
}
}
}
string settingsFileName = SettingsFileName(localSettings);
if (File.Exists(settingsFileName) == false)
return false;
FileStream fs = null;
try
{
bool bKeepTrying = false;
int lockTryCount = 0;
// Lame attempt to handle file locking. For performance reasons, only
// try once more after failure to acquire lock.
do
{
try
{
bKeepTrying = false;
fs = new FileStream(settingsFileName, FileMode.Open, FileAccess.Read);
}
catch (IOException ioe)
{
if (!(ioe is FileNotFoundException) &&
!(ioe is DirectoryNotFoundException) &&
!(ioe is PathTooLongException))
{
// File is locked. Try once more then give up.
if (lockTryCount < 1)
{
bKeepTrying = true;
lockTryCount++;
System.Threading.Thread.Sleep(50);
}
}
}
} while (bKeepTrying);
// Couldn't acquire lock
if (fs == null)
return false;
XmlDocument doc = new XmlDocument();
XmlNamespaceManager ns = new XmlNamespaceManager(doc.NameTable);
ns.AddNamespace("xml", "http://www.w3.org/XML/1998/namespace");
doc.Load(fs);
fs.Close();
fs.Dispose();
// The settings attribute will either be "xml:id" or "id", this will check for "id" if "xml:id" is not found.
XmlNode rootNode = doc.SelectSingleNode("/settings[@xml:id=\'" + CURRENT_XML_FORMAT_VERSION + "\']", ns) ??
doc.SelectSingleNode("/settings[@id=\'" + CURRENT_XML_FORMAT_VERSION + "\']", ns);
if (rootNode == null)
return false;
// Parse main <plug-in> entry, if it exists, for plug-in settings
m_PluginSettings.ParseXmlNodes(rootNode.SelectSingleNode("./plugin"));
// Look for <command> nodes which will have a command name property that identifies the plug-in command settings
XmlNodeList commandNodes = rootNode.SelectNodes("./command");
if (commandNodes != null)
{
foreach (XmlNode commandNode in commandNodes)
{
XmlAttributeCollection attr_collection = commandNode.Attributes;
if( attr_collection==null )
continue;
XmlNode attr = attr_collection.GetNamedItem("name");
if (null != attr && !string.IsNullOrEmpty(attr.Value))
{
PersistentSettings entries = new PersistentSettings(AllUserCommandSettings(attr.Value));
entries.ParseXmlNodes(commandNode);
if (null != AllUserSettings && m_CommandSettingsDict.ContainsKey(attr.Value))
m_CommandSettingsDict[attr.Value].CopyFrom(entries);
else
m_CommandSettingsDict[attr.Value] = entries;
}
}
}
}
catch (Exception ex)
{
Rhino.Runtime.HostUtils.ExceptionReport(ex);
return false;
}
finally
{
if (fs != null)
{
fs.Close();
fs.Dispose();
}
}
return true;
}
/// <summary>
/// Gets the PersistentSettings associated with the specified command. If the settings file
/// has not been previously loaded and exists then it will get read. If the command name is
/// not in the command settings dictionary then a new entry will get created and its settings
/// will be returned.
/// </summary>
/// <param name="name">Command name key to search for and/or add.</param>
/// <returns>Returns PersistentSettings object associated with command name on success or null on error.</returns>
public PersistentSettings CommandSettings(string name)
{
if (m_CommandSettingsDict == null)
{
ReadSettings();
if (m_CommandSettingsDict == null)
return null;
}
if (m_CommandSettingsDict.ContainsKey(name))
return m_CommandSettingsDict[name];
// There were no settings available for the command, so create one
// for writing
m_CommandSettingsDict[name] = new PersistentSettings(AllUserCommandSettings(name));
return m_CommandSettingsDict[name];
}
/// <summary>
/// If the settings dictionary contains one or more values, which are not equal to the default value, then Write the contents
/// of this settings dictionary to the specified XmlWriter contained within elementName.
/// </summary>
/// <param name="xmlWriter">XmlWriter object to write to.</param>
/// <param name="elementName">Element which will contain key value pairs.</param>
/// <param name="attributeName">Optional element attribute.</param>
/// <param name="attributeValue">Optional element attribute value.</param>
/// <param name="allUserSettings">All users settings to compare with.</param>
internal void WriteXmlElement(XmlWriter xmlWriter, string elementName, string attributeName, string attributeValue, PersistentSettings allUserSettings)
{
if (null != m_Settings && ContainsModifiedValues(allUserSettings))
{
xmlWriter.WriteStartElement(elementName);
if (!string.IsNullOrEmpty(attributeName) && !string.IsNullOrEmpty(attributeValue))
xmlWriter.WriteAttributeString(attributeName, attributeValue);
foreach (var item in m_Settings)
{
string allUserValue = null;
if (null != allUserSettings && allUserSettings.m_Settings.ContainsKey(item.Key))
allUserValue = allUserSettings.m_Settings[item.Key].GetValue(false);
string value = item.Value.GetValue(false);
bool valueDifferentThanAllUser = (null != allUserValue && 0 != string.Compare(value, allUserValue, StringComparison.Ordinal));
if (valueDifferentThanAllUser || item.Value.ValueDifferentThanDefault)
{
// Write current value
xmlWriter.WriteStartElement("entry");
xmlWriter.WriteAttributeString("key", item.Key);
// The following is used when you want to write the default and all user values as item attributes
// to the settings output file, useful when trying to determine why a value was written
//const bool bWriteDefaultValue = false;
//if (bWriteDefaullValue)
//{
// string defaultValue = item.Value.GetValue(true);
// xmlWriter.WriteAttributeString("DefaultValue", null == defaultValue ? "" : defaultValue);
// if (null != allUserValue)
// xmlWriter.WriteAttributeString("AllUsersValue", allUserValue);
//}
if (!string.IsNullOrEmpty(value))
xmlWriter.WriteString(value);
xmlWriter.WriteEndElement();
}
}
xmlWriter.WriteEndElement();
}
}
